Forward and reverse plugging USB socket

Abstract

A forward and reverse plugging USB socket comprises a plug connector and a grounding sleeve sleeved outside the plug connector, the plug connector comprises a middle plate, a first terminal group, a second terminal group and an insulation body, the first terminal group and the second terminal group are located on the upper side and the lower side of the middle plate, and the insulation body fixedly holds the middle plate, the first terminal group and the second terminal group into a whole. The insulation body comprises a base portion, a transition portion formed by forward extension from the base portion and a butt joint tongue portion formed by forward extension from the transition portion, the middle plate comprises a plate body portion and a buckle protrusion formed by protruding from the transverse outer side of the front end of the plate body portion, and the grounding sleeve is of a seamless structure. The grounding sleeve comprises a rear ring body wrapping the periphery of the base part, a bent end face formed by extending from the rear ring body in the center direction and wrapping the front end face of the base part, and a front ring body extending forwards from the bent end face and wrapping the transition part, and the grounding sleeve is sleeved outside the plug connector from front to back; the distance between the pair of buckle protrusions of the middle plate is larger than the transverse distance between the inner wall faces of the front ring body. The device is simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] The present application relates to the field of electrical connectors, and in particular to a reversible USB socket. Background Art

[0002] Type C is the most widely used power supply and data transmission interface at present, in which the connector interface structure is initially restricted in the standards issued by the association, such as size and appearance to achieve compatibility, while the internal structure can be changed according to demand. Early Type C sockets, such as the People's Republic of China Patent Application No. 201710228598.3, disclose a USB socket, including a metal isolation middle plate, a first terminal group and a second terminal group disposed on both sides of the metal isolation middle plate, an insulating body that holds the isolation middle plate and the first and second terminal groups as one, a metal fastener sleeved on the insulating body, and a metal shell sleeved on the insulating body. The lateral width of the metal fastener is smaller than the width of the docking tongue at the front end of the insulating body according to the standard. Generally, the plate-shaped metal is bent and then riveted or welded together. The metal fastener is welded to the metal shell. The metal fastener has the function of guiding the docking plug to ground and reinforcing the insulating body.

[0003] In subsequent application scenarios, with the advancement of manufacturing technology, the insulating body may no longer need to be reinforced, and when the high-frequency performance requirements are not high, most of the metal reinforcements have been cancelled. However, with the release of the USB4.0 standard, high-frequency transmission performance has been further enhanced, and overseas markets require grounding in accordance with the standard. Indeed, Patent Application No. 202410554933.9 of the People's Republic of China discloses a high-frequency transmission USB socket, which also includes a conventional middle plate, first and second conductive terminals located on the upper and lower sides of the middle plate, and an insulating body that holds it as a whole, and the metal fastener is divided into two upper and lower pieces, which are molded in the insulating body and welded to the metal shell at the base of the insulating body. However, this structure has high manufacturing costs and relatively complex processes. Summary of the invention

[0004] In view of this, it is necessary to provide a reversible USB socket with a simple structure and a grounding function.

[0005] In order to solve the above technical problems, the present application provides a forward and reverse plug-in USB socket, comprising a plug-in component and a grounding sleeve sleeved outside the plug-in component, the plug-in component comprising a middle plate, a first terminal group and a second terminal group located on the upper and lower sides of the middle plate, and an insulating body that fixes the middle plate, the first terminal group and the second terminal group as a whole, the insulating body comprising a base, a transition portion extending forward from the base, and a docking tongue portion extending forward from the transition portion, the middle plate comprising a plate body and a snap-on protrusion protruding from the lateral outer side of the front end of the plate body, the grounding sleeve is a seamless structure, the grounding sleeve comprises a rear ring body wrapped around the periphery of the base, a bent end surface extending from the rear ring body along the center direction and wrapped on the front end surface of the base, and a front ring body extending forward from the bent end surface and wrapped outside the transition portion, the grounding sleeve is sleeved outside the plug-in component from front to back, and the distance between a pair of snap-on protrusions of the middle plate is greater than the lateral distance between the inner wall surfaces of the front ring body.

[0006] Preferably, the outer diameter of the base is larger than the outer diameter of the transition portion, the outer diameter of the transition portion is larger than the outer diameter of the docking tongue, and the snap protrusion is exposed outside the docking tongue of the insulating body along the lateral outer side.

[0007] Preferably, when viewed in the longitudinal direction, the width of the buckle protrusion extending outward beyond the inner wall of the front ring body is between 0.08-0.12 mm, and the front ring body of the grounding sleeve is squeezed through the buckle protrusion when installed backward.

[0008] Preferably, a notch is cut in the middle of the upper and lower sides of the front ring body, and the notch helps to improve the elasticity of the front ring body so as to facilitate its insertion into the connector.

[0009] Preferably, through grooves for avoiding the buckle protrusions are formed on both lateral sides of the front ring body, and the through grooves do not penetrate the front end of the front ring body but penetrate backwards to the bent end surface.

[0010] Preferably, the insulating body also includes a tail portion formed behind the base and a partition portion formed between the base and the tail portion, the base and the tail portion of the insulating body are connected as a whole with the middle plate through the first terminal group and the second terminal group, and material strip connecting portions are formed on both lateral sides of the plate body of the middle plate, and the material strip connecting portions are located in the front ring body and are spot welded to the front ring body.

[0011] Preferably, the USB socket further comprises a draw-out shell, the draw-out shell comprising a shell which is through-through from front to back to form a receiving cavity, a folded portion formed by folding from the front end of the shell, the rear end of the shell is at least partially surrounded by the outside of the partition portion, and waterproof glue is injected into the partition portion to form a seal which is attached to the inner wall surface of the shell, the inner wall surface of the shell is at least partially attached to the outer surface of the rear ring body, and first spot welding portions are formed on both lateral sides of the shell to fix the rear ring body to the shell.

[0012] Preferably, the folding portion includes a reverse folding portion formed by reverse bending from the front end of the shell and an outward turning portion formed by bending from the reverse folding portion toward the radial outside, and a sealing ring is formed by glue dotting on the outward turning portion.

[0013] Preferably, the USB socket also includes a metal shell, which includes a first shell and a second shell, and the first shell and the second shell both include an attachment body attached to the upper surface or lower surface of the shell of the drawing shell, a bent body bent from both lateral sides of the attachment body and wrapping the lateral outer surface of the shell, and a welding body bent outward from the end of the bent body. The welding body of the first shell and the welding body of the second shell are attached together and spot welded, and the attachment body is spot welded to the upper and lower surfaces of the shell.

[0014] Preferably, the rear end of the welding body of the first shell is bent upward to form a pressure column, and the lateral outer side of the second shell is bent downward to form a welding foot.

[0015] The present invention forms a seamless grounding sleeve by stretching the USB socket for forward and reverse insertion, and then inserts the grounding sleeve from the front to the back of the plug-in component, and smoothly installs the grounding sleeve by squeezing the buckle protrusion of the middle plate, and spot-welds the grounding sleeve to the draw-out shell on the lateral outer side, and the partition part is surrounded by the draw-out shell to achieve sealing and waterproofing. Compared with the prior art, the sheet metal is riveted to the outer periphery of the plug-in component, and the structure is more stable, the holding force is better, and the assembly is simple, and the manufacturing cost is lower than the upper and lower two-piece grounding sheet solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a three-dimensional combination diagram of the USB socket for this application with both the front and back plugs inserted;

[0018] Figure 2 This is a three-dimensional exploded view of the USB socket for this application;

[0019] Figure 3 This is a three-dimensional exploded view of the connector for inserting the USB socket forward and reversely in this application;

[0020] Figure 4 A three-dimensional combination diagram of the middle plate and conductive terminal group of the forward and reverse plug-in USB socket of this application;

[0021] Figure 5 A three-dimensional diagram of the middle plate of the present application for inserting the USB socket forward and backward;

[0022] Figure 6 A three-dimensional diagram of the grounding sleeve of the present application for inserting the USB socket forward and reversely;

[0023] Figure 7 For along Figure 6 A cross-sectional view taken along the dashed line AA shown;

[0024] Figure 8 For along Figure 1 The cross-sectional view shown along the dashed line BB;

[0025] Fig. 9 For along Figure 1 A cross-sectional view taken along the CC dashed line is shown.

[0026] Description of Reference Numerals

[0027] Extraction shell-10; shell-11; first spot welding part-111; second spot welding part-112; receiving chamber-12; folding part-13; reverse folding part-131; outward turning part-132; sealing ring-14; sealing glue-15; metal shell-20; first shell-21; second shell-22; attached body-201; bending body-202; welding body-203; pressing column-211; welding foot-221; grounding sleeve-30; rear ring body-31; bending end face-32; front ring body-33; notch part-34; rear Cavity-301; front cavity-302; connector-A; insulating body-40; base-41; transition portion-42; docking tongue-43; tail-44; partition portion-45; conductive terminal group-50; first terminal module-51; second terminal module-52; middle plate-53; first terminal group-511; first insulator-512; second terminal group-521; second insulator-522; plate body-531; welding feet-532,503; snap protrusion-533; contact portion-501; retaining portion-502. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution of this application will be clearly and completely described below in combination with the specific embodiments of this application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them.

[0029] See also Figure 1 , Figure 2 As shown, the reversible USB socket of the present application includes a connector A, a grounding sleeve 30 sleeved outside the connector A, a drawer shell 10 sleeved outside the connector A and the grounding sleeve 30, and a metal shell 20 spot-welded outside the drawer shell 10.

[0030] Please continue reading Figures 2 to 5 As shown, the connector A includes a conductive terminal set 50 and an insulating body 40 that holds the conductive terminal set 50 as a whole.

[0031] The conductive terminal group 50 includes a middle plate 53, a first terminal module 51 and a second terminal module 52 located at the upper and lower sides of the middle plate 53. The first terminal module 51 includes a first terminal group 511 and a first insulator 512 that holds the first terminal group 511 as a whole; the second terminal module 52 includes a second terminal group 521 and a second insulator 522 that holds the second terminal group 521 and the middle plate 53 as a whole. The first terminal module 51 and the second terminal module 52 are held as a whole by the insulating body 40; the first terminal group 511 and the second terminal group 521 respectively include a contact portion 501, a holding portion 502 extending backward from the contact portion 501, and a welding foot 503 extending backward from the holding portion 502 out of the insulating body 40.

[0032] The insulating body 40 includes a base 41, a transition portion 42 extending forward from the base 41, a docking tongue 43 extending forward from the transition portion 42, a tail portion 44 located behind the base 41, and a partition 45 formed between the base 41 and the tail portion 44. The outer diameter of the base 41 is greater than the outer diameter of the transition portion 42, and the outer diameter of the transition portion 42 is greater than the outer diameter of the docking tongue 43. The partition 45 between the base 41 and the tail 44 is not formed of a plastic body, and is only connected through the first terminal group 511 and the second terminal group 521.

[0033] The middle plate 53 includes a plate body 531, a welding foot 532 extending from the plate body 531 to the insulating body 40, and a buckle protrusion 533 formed on the outer side of the front end of the plate body 531. A material strip connecting portion 534 connected to a material strip is formed extending outward from the middle position of the plate body 531. The buckle protrusion 533 extends outward beyond the outer side of the plate body 531, and the outer side of the buckle protrusion 533 is exposed to the lateral outer side of the docking tongue 43 of the insulating body 40.

[0034] In the present application, the middle plate 53 is an integral structure, that is, the plate body 531 is an integral structure with left and right sides, and a plurality of through holes are provided on the plate body 531, and the through holes can be used for the flow of plastic, and the distance between a pair of the buckle protrusions 533 is greater than the width of the rest of the plate body 531. In other embodiments, the middle plate 53 can adopt a split structure with two horizontal parts, but in the present embodiment, the middle plate 53 adopting an integral structure has better stability.

[0035] Please continue reading Figures 6 to 8 As shown, the grounding sleeve 30 is a seamless tubular structure formed by stretching a metal plate. The grounding sleeve 30 includes a rear ring body 31, a bent end face 32 formed by extending and bending from the rear ring body 31 toward the center, and a front ring body 33 formed by bending and extending forward from the bent end face 32. The front ends of the upper and lower sides of the front ring body 33 are cut off to form a notch 34, and a rear cavity 301 is formed in the rear ring body 31 and a front cavity 302 is formed in the front ring body 33.

[0036] Key References Fig. 9 As shown, the grounding sleeve 30 is inserted into the outside of the plug-in component A from front to back, and the distance between the pair of snap-in protrusions 533 of the middle plate 53 is greater than the lateral distance of the front ring body 33 of the grounding sleeve 30. Specifically, the snap-in protrusions 533 on both sides of the lateral direction extend outwardly from the inner wall surface of the front ring body 33 by a distance h, and the distance h is between 0.08-0.12 mm, preferably 0.1 mm. When the grounding sleeve 30 is inserted into the outside of the plug-in component A backward, the front ring body 33 can only pass through the position of the snap-in protrusions 533 of the middle plate 53 by hard squeezing, and the excess distance of the snap-in protrusions 533 is only about 0.1 mm, so it can be easily squeezed in, specifically by the deformation of the front ring body 33.

[0037] After the grounding sleeve 30 is installed, the rear ring body 31 is wrapped around the periphery of the base 41, the bent end face 32 is attached to the front end face of the base 41, the front ring body 33 is wrapped around the periphery of the transition portion 42, and the material strip connecting portion 534 is located on the inner side of the front ring body 33 and can be fixed together by spot welding. The grounding sleeve 30 is generally made of continuous material by stretching.

[0038] Please continue reading Figure 2 , Figure 8 , Fig. 9As shown, the extraction housing 10 includes a shell 11, a receiving cavity 12 formed by passing through the shell 11 from front to back, and a folded portion 13 formed by reverse bending from the front end of the shell 11. The first spot welding portions 111 are provided on both lateral sides of the shell 11, and the second spot welding portions 112 are provided on the upper and lower surfaces of the shell 11. The folded portion 13 includes a reverse folded portion 131 formed by reverse bending from the front end of the shell 11 and extending backward, and an outward turning portion 132 formed by bending and extending from the reverse folded portion 131 along the radial outer side. A space for forming a sealing ring 14 is formed on the front end surface of the outward turning portion 132. The extraction housing 10 is inserted into the periphery of the connector A from front to back. Specifically, the rear end of the shell 11 is sleeved on the outer surface of the rear ring body 31 of the grounding sleeve 30, and the first spot welding portions 111 on both lateral sides of the shell 11 are welded and connected with the rear ring body 31 by spot welding. The shell 11 surrounds at least a portion of the partition portion 45 , and glue is injected into the partition portion 45 to form a sealant 15 . The sealant 15 seals the partition portion 45 surrounded by the inner surface of the shell 11 .

[0039] The metal shell 20 includes a first shell 21 and a second shell 22 attached to the extraction shell 10 at the upper and lower sides. The first shell 21 and the second shell 22 respectively include an attached body 201 attached to the upper surface or the lower surface of the shell 11, a bent body 202 bent downward or upward in an arc shape from the lateral ends of the attached body 201 to be attached to the lateral outer side of the shell 11, and a welded body 203 formed by horizontally bending outward from the bent body 202 and attached together. The welded bodies 203 of the first shell 21 and the second shell 22 are attached together and fixed by spot welding, and the attached body 201 is fixed to the upper and lower surfaces of the shell 11 by spot welding.

[0040] In the present application, the lateral sides of the rear ring body 31 of the grounding sleeve 30 are spot-welded to the lateral sides of the shell 11, thereby leaving the upper and lower surfaces of the shell 11 for spot-welding and fixing with the metal shell 20, thereby avoiding the situation in the prior art where the welding and fixing of the grounding sleeve 30, the extraction shell 10 and the metal shell 20 are all placed at the upper and lower sides, resulting in uneven upper and lower surfaces of the shell 11 after the extraction shell 10 and the grounding sleeve 30 are welded, thereby causing a large error in the fit between the metal shell 20 and the shell 11.

[0041] In other embodiments, the ground sleeve 30 of the present application may also be provided with a through groove on the lateral outer side of the front ring body 33 along the front-to-back direction, so that when the ground sleeve 30 is inserted into the connector A, the through groove avoids the buckle protrusion 533 of the middle plate 53 without squeezing. To ensure the firmness of the front ring body of the ground sleeve 30, the through groove does not penetrate the front end face, but only penetrates backward to the bent end face 32.

[0042] The rear end of the welding body 203 of the first shell 21 is bent upward to form a pressure column 211. The pressure column 211 is used to press against an object to apply forward pressure to the USB socket, so that sufficient and uniform squeezing force is generated between the sealing ring 14 on the outer periphery of the extraction shell 10 of the USB socket of the present application and the frame of the electronic device to achieve waterproofing. The outer side of the welding body 203 of the second shell 22 is bent downward to form a plurality of welding pins 221. The welding pins 221 are used to be welded on the printed circuit board to increase the strength of the USB socket of the present application to be fixed on the printed circuit board. The welding pins 503, 532 of the first terminal group 511, the second terminal group 521 and the middle plate 53 are all welded on the printed circuit board and are conductive.

[0043] When the docking plug is inserted into the USB socket of the present application, an elastic structure is provided on the plug shell of the docking plug to overlap with the outer surface of the front ring body 33 so that the extraction shell 10, the metal shell 20 and the plug shell are electrically connected and grounded. The bent end surface 32 of the grounding sleeve 30 can abut the front end of the docking plug to prevent plugs of different specifications from being over-inserted and damaging the USB socket.

[0044] The present invention forms a seamless ground sleeve 30 by stretching the USB socket for forward and reverse insertion, and then inserts the ground sleeve 30 from the front to the back into the connector A, and smoothly installs the ground sleeve 30 by squeezing the buckle protrusion 533 of the middle plate 53, and fixes the ground sleeve 30 to the drawer housing 10 by spot welding on the lateral outer side, and realizes sealing and waterproofing by surrounding the drawer housing 30 with the partition part 45. Compared with the prior art, the sheet metal is riveted to the outer periphery of the connector A, so the structure is more stable, the holding force is better, and the assembly is simple, and the manufacturing cost is lower than the upper and lower two-piece grounding plate solution.

[0045] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A reversible USB socket, comprising a plug-in and a grounding sleeve sleeved outside the plug-in, the plug-in comprising a middle plate, a first terminal group and a second terminal group located at the upper and lower sides of the middle plate, and an insulating body that holds the middle plate, the first terminal group and the second terminal group as a whole, the insulating body comprising a base, a transition portion extending forward from the base, and a docking tongue portion extending forward from the transition portion, the middle plate comprising a plate body and a buckle protrusion protruding laterally from the front end of the plate body, characterized in that: The grounding sleeve is a seamless structure, and includes a rear ring body wrapped around the periphery of the base, a bent end face extending from the rear ring body along the center direction and wrapped around the front end face of the base, and a front ring body extending forward from the bent end face and wrapped outside the transition portion. The grounding sleeve is inserted into the outside of the connector from front to back, and the distance between a pair of snap-on protrusions on the middle plate is greater than the lateral distance between the inner wall surfaces of the front ring body.

2. The reversible USB socket as claimed in claim 1, characterized in that: The outer diameter of the base is greater than the outer diameter of the transition portion, the outer diameter of the transition portion is greater than the outer diameter of the docking tongue portion, and the buckle protrusion is exposed outside the docking tongue portion of the insulating body along the lateral outer side.

3. The reversible USB socket as claimed in claim 2, characterized in that: When viewed in the longitudinal direction, the width of the buckle protrusion extending outward beyond the inner wall of the front ring body is between 0.08-0.12 mm, and the front ring body of the grounding sleeve is forced through the buckle protrusion when installed backward.

4. The reversible USB socket as claimed in claim 2, characterized in that: A notch is cut in the middle of the upper and lower sides of the front ring body, and the notch helps to improve the elasticity of the front ring body so as to facilitate squeezing into the outside of the connector.

5. The reversible USB socket as claimed in claim 2, characterized in that: The front ring body is provided with through grooves on both lateral sides to avoid the buckle protrusions, and the through grooves do not penetrate the front end of the front ring body but penetrate backwards to the bent end surface.

6. The reversible USB socket as claimed in claim 2, characterized in that: The insulating body also includes a tail portion formed behind the base and a partition portion formed between the base and the tail portion. The base and the tail portion of the insulating body are connected as a whole with the middle plate through the first terminal group and the second terminal group. Material strip connecting portions are formed on both lateral sides of the plate body of the middle plate. The material strip connecting portions are located in the front ring body and are spot-welded to the front ring body.

7. The reversible USB socket as claimed in claim 6, characterized in that: The USB socket also includes a draw-out shell, which includes a shell that is through-through from front to back to form a receiving cavity, and a folded portion formed by folding from the front end of the shell. The rear end of the shell is at least partially surrounded by the outside of the partition portion. After waterproof glue is injected into the partition portion, a sealing member that is attached to the inner wall surface of the shell is formed. The inner wall surface of the shell is at least partially attached to the outer surface of the rear ring body. The first spot welding portions that fix the rear ring body to the shell are formed on both lateral sides of the shell.

8. The reversible USB socket as claimed in claim 7, characterized in that: The folding portion includes a reverse folding portion formed by reverse bending from the front end of the shell and an outward turning portion formed by bending from the reverse folding portion toward the radial outside, and a sealing ring is formed by glue doping on the outward turning portion.

9. The reversible USB socket as claimed in claim 8, characterized in that: The USB socket also includes a metal shell, which includes a first shell and a second shell. The first shell and the second shell both include an attachment body attached to the upper surface or lower surface of the shell of the drawing shell, a bending body bent from both lateral sides of the attachment body and wrapping the lateral outer surface of the shell, and a welding body bent outward from the end of the bending body. The welding body of the first shell and the welding body of the second shell are attached together and spot welded, and the attachment body is spot welded to the upper surface and the lower surface of the shell.

10. The reversible USB socket as claimed in claim 9, characterized in that: The rear end of the welding body of the first shell is bent upward to form a pressure column, and the lateral outer side of the second shell is bent downward to form a welding foot.

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