CN114843825A - Vertical waterproof USB socket - Google Patents

Abstract

The utility model provides a waterproof USB socket of vertical type, includes plug connector and cover locate the waterproof cover outside the plug connector, the plug connector is including the first terminal group, the second terminal group that stack together and with first terminal group and the insulating body of second terminal group fixing as an organic whole, insulating body includes the basal portion, certainly the butt joint tongue portion that the basal portion upwards extends the formation and certainly the fixed afterbody that the basal portion downwardly extending formed, the external diameter of fixed afterbody is greater than the external diameter of basal portion, waterproof cover cavity is formed with the through-hole, waterproof cover embolias from the top down outside fixed afterbody and basal portion, basal portion upper end part at least exposes in the waterproof cover upside, the waterproof cover top with the point of basal portion combination department is glued and is formed with and is used for sealed rubber ring. This application simple structure, waterproof performance are good.

Description

Vertical waterproof USB socket

Technical Field

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

Background

Type C connectors are now popular in the consumer electronics field, and are popular for providing positive and negative insertion capabilities. The Type C standard has functions of high-speed transmission and power transmission to support charging, high-speed data transmission, and the like of the electronic device. Type C product Type is more, has the following classification from demand functional classification: the device such as mobile phone, computer, etc. has the functions of high-speed transmission and current increasing charging; the low-order mobile phone requires low-speed data transmission and large-current charging functions; and the requirements of some small household appliances are simple, and only conventional charging is needed. The following classifications are made from the product structure: patch type, broken plate type, vertical type, waterproof type, etc. Patent application No. 201720592738.0 of the people's republic of China discloses a vertical Type C socket, which comprises a plug connector, a metal shell sleeved outside the plug connector, an insulating shell formed outside the metal shell and a printed circuit board welded with the socket. The plug connector comprises two terminal groups which are arranged side by side up and down, a middle plate clamped between the two terminal groups, an insulating body which fixes the terminal groups and the middle plate into a whole, and a metal piece fixed on the base of the insulating body, wherein the metal piece is welded with the metal shell to fix the plug connector on the metal shell, the insulating shell is formed outside the metal shell, and the metal shell and the conductive terminals of the two terminal groups extend to form welding feet which are inserted into the printed circuit board. The above-mentioned USB socket requires a metal housing to be fixed, cannot achieve waterproofing, or is too costly to add a waterproofing solution.

Disclosure of Invention

In view of the above, it is desirable to provide a waterproof USB socket with a simple structure and low manufacturing cost.

In order to solve the technical problem, the application provides a waterproof USB socket of vertical type, locate including plug connector and cover the outer waterproof cover of plug connector, the plug connector includes first terminal group, second terminal group that the stack is in the same place and will first terminal group and second terminal group fixing insulator as an organic whole, insulator includes the basal portion, certainly the basal portion upwards extends the butt joint tongue that forms and certainly the fixed afterbody that the basal portion downwardly extending formed, the external diameter of fixed afterbody is greater than the external diameter of basal portion, waterproof cover cavity is formed with the through-hole, waterproof cover embolias from last downwards outside fixed afterbody and basal portion, basal portion upper end at least part exposes the waterproof cover upside, the waterproof cover top with the basal portion combination department point is glued and is formed with and is used for sealed rubber ring.

Preferably, the waterproof shell is made of elastic materials, the hardness of the waterproof shell is between shore 100-105, and the rubber ring is formed by curing the waterproof adhesive after dispensing.

Preferably, the waterproof case includes a housing, the through hole penetrates the housing from top to bottom, the inner diameter of the upper portion of the through hole is smaller than the inner diameter of the lower portion of the through hole and forms a supporting step, and the upper end edge of the fixed tail portion is provided with a supported step limited by the supporting step.

Preferably, the fixing tail part completely enters the through hole, the lower edge of the through hole exceeds the fixing tail part, the base part protrudes upwards out of the upper side of the waterproof shell, and the outer diameter of the base part is larger than the inner diameter of the upper part of the through hole so as to generate extrusion between the base part and the through hole to form a sealing structure.

Preferably, the USB socket is fixed to a printed circuit board by plug-in welding, the bottom surface of the waterproof case is attached to the surface of the printed circuit board, the bottom of the fixed tail is not in contact with the printed circuit board, a first rubber ring is formed by dispensing and curing the periphery of the waterproof case, the first rubber ring seals the joint surface between the printed circuit board and the waterproof case, and the second rubber ring is defined as the rubber ring between the top of the waterproof case and the base.

Preferably, the USB socket is assembled to an equipment housing, the equipment housing includes an outer panel, a sleeve extending downward from the outer panel, and an accommodating cavity formed by penetrating the outer panel and the sleeve, a docking tongue and at least a part of the base of the USB socket are inserted into the accommodating cavity, the lower end edge of the sleeve presses the top surface of the waterproof case, and the inner side surface of the sleeve presses the rubber ring.

Preferably, the accommodating cavity sequentially comprises a first cavity, a second cavity and a third cavity from top to bottom, the inner diameter of the first cavity is smaller than that of the second cavity, the inner diameter of the second cavity is smaller than that of the third cavity, the third cavity is of an inclined surface structure, and a pressure-joint inclined table is formed at the joint of the first cavity and the second cavity.

Preferably, a pressed inclined table limited by the pressed inclined table is formed at the front end edge of the base, the inner wall surface of the third cavity compresses the rubber ring, and the bottom of the third cavity simultaneously extrudes the upper end edge of the waterproof shell.

Preferably, the first terminal group and the second terminal group are of a central symmetry structure, each terminal group includes a plurality of conductive terminals, a middle plate, an insulator for holding the middle plate and the plurality of conductive terminals together, and a metal reinforcing plate fastened to the outer side of the insulator, the insulator includes a wrapped tail, a wrapped base formed by extending the wrapped tail upwards, an extending part formed by extending the wrapped base upwards, and a tongue piece formed by extending the extending part upwards, and the metal reinforcing plate is fastened to the outer sides of the wrapped tail and the wrapped base.

Preferably, the conductive terminal includes a contact portion and a welding leg extending downward from the contact portion, and the metal reinforcing plate includes a first plate body covering the outside of the wrapped tail portion, a bending portion formed by bending inward from the upper side of the first plate body, a second plate body covering the wrapped base portion and formed by extending upward from the bending portion, a blocking portion formed by bending inward from the top end of the second plate body, and at least one fixing welding leg extending downward from the first plate body.

Preferably, the wrapped tail part and the wrapped base part are convexly provided with a plurality of fixing columns and a plurality of buckling holes formed by depressions, and the first sheet body and the second sheet body are respectively provided with fixing holes and buckling feet corresponding to the fixing columns and the buckling holes.

Preferably, a plurality of flowing gaps facilitating flowing of molten plastic are formed in the bending portion in a penetrating mode in the vertical direction, positioning columns and positioning holes which are symmetrically arranged are further formed in the inner side face of the insulator, and when the two terminal sets are combined in an overlapping mode, the positioning columns and the positioning holes of the first terminal set are matched with the positioning holes and the positioning columns of the second terminal set respectively.

Preferably, when the insulating body is injection molded, the fixed tail portion of the insulating body completely wraps the outer peripheral surface of the wrapped tail portion, the base portion completely wraps the surface of the wrapped base portion, and the abutting tongue portion wraps all surfaces of the tongue piece except the surface of the contact portion of the conductive terminal.

This application waterproof USB socket of vertical type has got rid of metal casing, adopts waterproof cover to locate this external and cooperation point of insulating body is glued technology and is realized waterproofly, simple structure, low in manufacturing cost, and waterproof performance is good.

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 schematic diagram of an electronic device using a USB socket according to the present application;

FIG. 2 is a perspective view of a device housing of an electronic device of the present application;

FIG. 3 is a cross-sectional view taken along the line B-B in FIG. 2;

fig. 4 is a perspective view of the vertical waterproof USB socket of the present application;

fig. 5 is an exploded perspective view of the vertical waterproof USB socket of the present application;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 7 is a perspective view of the connector of the waterproof upright USB socket of the present application;

FIG. 8 is an exploded perspective view of the connector of the waterproof upright USB socket of the present application;

FIG. 9 is an exploded perspective view of the terminal set of the connector of the waterproof upright USB socket of the present application;

fig. 10 is an exploded perspective view of another angle of the terminal set of the connector of the vertical waterproof USB socket of the present application.

Description of the reference numerals

A printed circuit board-10; an equipment housing-20; an outer side panel-21; a sleeve-22; a reinforcing rib-23; a housing cavity-24; an outer opening-241; an inner opening-242; a first cavity-243; a second cavity-244; a third lumen-245; a crimping ramp-246; a waterproof shell-30; a housing-31; a through-hole-32; a holding step-321; a first rubber ring-41; a second rubber ring-42; bevel-411,421; a plug-in unit-A; -an insulator body-50; a base-51; a crimped ramp-511; a wrapping portion-52; a docking tongue-53; a fixed tail-54; held step-541; a first terminal set-60; a second terminal set-60'; an insulator-61; wrapped tail-611; wrapped base-612; an extension-613; a tongue-614; fixed column-615; a snap hole-616; positioning post-617; positioning hole-618; a conductive terminal-62; a contact portion-621; a holding portion-622; welding a pin-623; a middle plate-63; a plate body-631; a snap edge-632; perforation-633; metal reinforcing sheet-64; a first sheet-641; a bending part-642; a second panel-643; a resisting part-644; fixing holes-645; a snap foot-646; a fixed fillet-647; flow slit-648.

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 taken as the vertical direction, the Y direction is taken as the lateral direction, and the Z direction is taken as the longitudinal direction.

Referring to fig. 1, the electronic device of the present application includes a device housing 20 and a vertical waterproof USB socket (hereinafter referred to as USB socket) matching with the device housing 10.

As shown in fig. 1 to fig. 3, the device housing 20 refers to a metal frame or a plastic frame of an electronic device. The device housing 30 is a square structure, and includes an outer side panel 21, a sleeve 22 integrally formed by extending downward from the lower side of the outer side panel 21, a reinforcing rib 23 extending from the lower side of the outer side panel 21 to the outer side of the sleeve 22, and a containing cavity 24 formed by the outer side panel 21 and the sleeve 22.

The housing cavity 24 is vertically penetrated, an outer opening is formed at one side of the outer panel 21, and an inner opening 242 is formed at a lower end of the sleeve 22. The receiving cavity 24 includes a first cavity 243, a second cavity 244 and a third cavity 245 from top to bottom. The inner diameter of the first cavity 243 is smaller than the inner diameter of the second cavity 244, and the inner diameter of the second cavity 244 is smaller than the inner diameter of the third cavity 245. A compression ramp 246 is formed at the junction of the first cavity 243 and the second cavity 244. The inner wall surface of the third cavity 245 is in an outward inclined structure.

Please continue to refer to fig. 4 to 7, the waterproof vertical USB socket of the present application includes a printed circuit board 10, vertically welds in a plug connector a on the printed circuit board 10, the cover is located the outer waterproof case 30 of plug connector a, covers the waterproof case 30 lower extreme with the first rubber ring 41 and the cover of the periphery of the laminating department of the printed circuit board 10 the waterproof case 30 upper end with the second rubber ring 42 of the periphery of the laminating department of the plug connector a.

The waterproof case 30 includes an annular case 31 and a through hole 32 formed through the case 31. The inner diameter of the upper portion of the through hole 32 is smaller than the inner diameter of the lower portion of the through hole 32 and a holding step 321 is formed. The waterproof shell 30 is made of a material with certain elasticity, the hardness of the waterproof shell is between Shore A100-105, if a silica gel material with higher hardness is used, the waterproof shell 30 has certain extrusion deformation capacity so as to be convenient for sealing, and the waterproof shell 30 has certain hardness and cannot deform in a large area.

The connector a includes a first terminal set 60 and a second terminal set 60 'stacked and an insulating body 50 holding the first terminal set 60 and the second terminal set 60' together. The insulative housing 50 includes a base 51, a mating tongue 53 extending forwardly from the base 51, and a securing tail 54 extending rearwardly from the base 51. A wrap portion 52 is formed between the base portion 51 and the docking tongue portion 53. The outer diameter of the base 51 is larger than the outer diameters of the docking tongue 53 and the wrapping portion 52, and the outer diameter of the fixing tail 54 is larger than the outer diameter of the base 51. A supported step 541 is formed at the joint of the fixed tail part 54 and the base part 51, and a pressed inclined table 511 is formed at the upper end of the base part 51 and positioned on the periphery of the wrapping part 52.

The waterproof case 30 of the waterproof USB socket of this application vertical type embolias from top to bottom the fixed afterbody 54 of plug connector A with outside the basal portion 51, the basal portion 51 upper end is worn out extremely waterproof case 30 top, the less upside part of through-hole 32 internal diameter of waterproof case 30 quilt basal portion 51 periphery extrusion laminating. The fixing tail portion 54 is inserted into the lower portion of the through hole 32 with a larger inner diameter, and the bottom of the waterproof case 30 extends downward beyond the fixing tail portion 54, so that the bottom edge of the waterproof case 30 is attached to the printed circuit board 10. The abutting step 321 limits the abutted step 541 at the upper end of the fixed tail 54 downwards, so that the plug connector a cannot move upwards continuously. Subsequently, the USB socket is vertically inserted into the printed circuit board 10 and soldered. Then, a first rubber ring 41 is formed at the joint of the bottom side of the waterproof case 30 and the printed circuit board 10 by dispensing, and a second rubber ring 42 is formed at the joint of the top of the waterproof case 30 and the base 51 of the insulating body 50 by dispensing. The bottom of the first rubber ring 41 is attached to the printed circuit board 10, the side surface is attached to the outer side surface of the waterproof shell 30, and the joint of the printed circuit board 10 and the waterproof shell 30 is sealed, waterproof and dustproof. The outer diameters of the first rubber ring 41 and the second rubber ring 42 are gradually increased from top to bottom to form inclined surfaces, and the inner diameter of the first rubber ring 41 is larger than that of the second rubber ring 42. The outer side of the first rubber ring 41 also presents an inclined surface structure. The first rubber ring 41 and the second rubber ring 42 may be collectively referred to as a rubber ring, and the rubber ring is formed by curing waterproof glue, has better elasticity, and has lower hardness than the waterproof case 30.

Specifically, referring to fig. 6, the upper side of the base 51 and the docking tongue 53 of the USB socket are inserted into the accommodating cavity 24 of the device housing 20 from bottom to top, the docking tongue 53 and the wrapping portion 52 are inserted into the first cavity 243, the upper side of the base 51 is inserted into the second cavity 244, the inner wall of the second cavity 244 is tightly attached to the outer peripheral surface of the base 51, and the pressure-welding ramp 246 abuts against the pressure-welded ramp 511 at the front end edge of the base 51 to limit the position of the plug connector a. And the inclined structure of the third cavity 245 is matched with the inclined surface 421 of the second rubber ring 42 and presses the inclined surface 421 to realize sealing, water proofing and dust proofing. Meanwhile, the lower end of the sleeve 22 downwardly presses the waterproof case 30 and causes the upper surface of the waterproof case 30 to elastically deform to achieve sealing.

According to the electronic equipment, the waterproof shell 30 is sleeved outside the plug connector A, the upper side and the lower side of the waterproof shell 30 are subjected to glue dispensing and sealing, the sleeve 22 for inserting the part A of the plug connector is arranged on the equipment shell 20, and the waterproof shell 30 and a sealing ring formed by glue dispensing are extruded from the bottom of the sleeve 22 to realize the sealing isolation between the accommodating cavity 24 of the equipment shell 20 and the inside of the electronic equipment.

As shown in fig. 7 to fig. 10, the first terminal set 60 and the second terminal set 60' are in a central symmetrical structure and are matched with each other. Each of the terminal sets 60, 60' includes a plurality of conductive terminals 62, a middle plate 63 stacked inside the conductive terminals 62, an insulator 61 combining the conductive terminals 62 and the middle plate into a whole, and a metal reinforcing plate 64 fastened to the outer side of the tail of the insulator 61.

Each of the conductive terminals 62 includes a contact portion 621 exposed on the upper or lower surface of the mating tongue 53 of the insulative housing 50, a holding portion 622 formed extending downward from the contact portion 621, and a soldering pin 623 extending from the holding portion 622 to the outside of the insulative housing 50. Each of the first terminal set 60 and the second terminal set 60' includes at least a pair of ground terminals, a pair of power terminals between the pair of ground terminals, and a signal terminal between the pair of power terminals. The first terminal group 60 and the second terminal group 60' are stacked together, the middle plate 63 is spaced between each pair of ground terminals on both lateral sides, the middle plate 63 includes a pair, and each terminal group is formed and fixed with one middle plate 63 when the insulator 61 is formed.

The middle plate 63 includes a plate body 631, a locking edge 632 formed on an upper outer edge of the plate body 631, and a plurality of through holes 633 longitudinally penetrating the plate body 631. The middle plate 63 is sandwiched between a pair of the ground terminals, and may be directly fixed in contact with the ground terminals, or may not be in contact with the ground terminals.

The insulator 61 includes a wrapped tail 611, a wrapped base 612 extending upward from the wrapped tail 611, an extension 613 extending upward from the wrapped base 612, and a tongue 614 extending upward from the extension 613. The wrapped tail 611 and the outer surface of the wrapped base 612 are protruded to form a plurality of fixing posts 615 and a plurality of fastening holes 616, the inner side of the wrapped tail 611 is a planar structure, and a positioning post 617 and a positioning hole 618 are respectively formed on the two lateral sides. The conductive terminals 62 and the middle plate 63 are fixed in the insulator 61 in a molding manner, and the middle plate 63 is located on one lateral side of the inner side surface of the insulator 61. The contact portion 621 of the conductive terminal 62 is fixed in the tongue piece 614 and the surface thereof is exposed to the outside, the holding portion 622 is embedded in the extending portion 613, the wrapped base portion 612 and the wrapped tail portion 611, and the soldering pin 623 vertically extends out of the lower portion of the wrapped tail portion 611.

The metal reinforcing plate 64 includes a first plate 641 covering the outside of the wrapped tail 611, a bent portion 642 formed by bending inward from the top end of the first plate 641, a second plate 643 formed by extending upward from the bent portion 642 and covering the outside of the wrapped base 612, and a stopping portion 644 formed by bending inward from the top of the second plate 643. The stopping portion 644 is bent and located at the front end edge of the wrapped base portion 612. The first sheet 641 and the second sheet 643 have a plurality of positioning holes 618 for inserting the positioning posts 615 at positions corresponding to the positioning posts 615 of the insulator 61, and the first sheet 641 and the second sheet 643 further have locking legs 646 formed by punching and inserted into the positioning holes 618 of the insulator 64. The lower end of the first sheet 641 extends downward vertically to form at least one fixing fillet 647. A plurality of flow slits 648 are opened at the positions of the bending portion 642 and the stopping portion 644, the flow slits 648 can extend to the first sheet 641 and the second sheet 643, and the flow slits 648 facilitate the flow of the molten plastic.

After one of the two terminal sets is turned over, the terminal set is fixed to the other terminal set in an overlapping manner, specifically, the inner side surfaces of the insulators 61 of the two terminal sets are attached together, and the positioning posts 617 and the positioning holes 618 are inserted into and positioned with each other. Then, the two assembled terminal sets are injection molded again to form the insulation body 50, the fixing tail portion 54 of the insulation body 50 is wrapped around the wrapped tail portion 611, the base portion 51 is wrapped around the wrapped base portion 612, the wrapping portion 52 is wrapped around the extension portion 613, and the abutting tongue portion 53 is wrapped around the tongue portion 614. Specifically, after the insulating body 50 is molded, the outer peripheral surfaces of the wrapped tail portion 54, the wrapped base portion 51 and the extending portion 52 of the two terminal groups overlapped together are all wrapped by the insulating body 50 without being exposed, except for the bottom side surface of the wrapped tail portion 611. The tongue 614 is mostly wrapped by the mating tongue 53, but ensures that the contact portion 621 of the conductive terminal 62 is exposed on the upper and lower surfaces of the mating tongue 53. The abutting portion 644 is embedded in the front end edge of the base portion 51 to reinforce the strength of supporting the plug connector (not shown).

The connector A of the application can ensure enough strength when the metal shell of the USB socket product is removed by assembling the metal reinforcing sheet 64 at the outer sides of the first terminal group 60 and the second terminal group 60'. Meanwhile, after the first terminal set 60 and the second terminal set 60' are stacked and combined, when the insulating body 50 is injection molded, the rest parts are wrapped by the insulating body 50 except the contact part 621 of the conductive terminal 62 exposed to the butt joint tongue 53, so that the waterproof performance is enhanced, and the water leakage of the sequentially molded binding surface is avoided.

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 express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (13)

1. The vertical waterproof USB socket is characterized by comprising a plug connector and a waterproof shell sleeved outside the plug connector, wherein the plug connector comprises a first terminal group, a second terminal group and an insulating body, the first terminal group and the second terminal group are overlapped together, the insulating body fixedly holds the first terminal group and the second terminal group into a whole, the insulating body comprises a base part, a butt joint tongue part formed by upward extending the base part and a fixed tail part formed by downward extending the base part, the outer diameter of the fixed tail part is larger than that of the base part, a through hole is formed in the waterproof shell in a hollow mode, the waterproof shell is sleeved outside the fixed tail part and the base part from top to bottom, at least part of the upper end of the base part is exposed on the upper side of the waterproof shell, and a rubber ring used for sealing is formed at the joint of the top end of the waterproof shell and the base part in a dispensing mode.

2. The vertical waterproof USB socket as claimed in claim 1, wherein the waterproof case is made of elastic material, the hardness of the waterproof case is between 100 Shore-105-.

3. The upright waterproof USB socket according to claim 1, wherein the waterproof case includes a housing, the through hole is formed vertically through the housing, an inner diameter of an upper portion of the through hole is smaller than an inner diameter of a lower portion of the through hole and forms a holding step, and a held step limited by the holding step is formed at an upper end edge of the fixing tail.

4. The upright waterproof USB socket as claimed in claim 3, wherein the fixing tail is completely inserted into the through hole, the lower edge of the through hole is beyond the fixing tail, the base protrudes upward from the upper side of the waterproof case, and the outer diameter of the base is larger than the inner diameter of the upper part of the through hole to generate a compression between the base and the through hole to form a sealing structure.

5. The upright waterproof USB socket according to claim 4, wherein the USB socket is fixed to a pcb by means of plug-in welding, the bottom surface of the waterproof case is attached to the pcb, the bottom of the fixing tail is not in contact with the pcb, a first rubber ring is formed on the periphery of the waterproof case by dispensing and curing, the first rubber ring seals the joint surface between the pcb and the waterproof case, and a second rubber ring is defined as the rubber ring between the top of the waterproof case and the base by dispensing and curing.

6. The upright waterproof USB socket of claim 2, wherein the USB socket is assembled to a device housing, the device housing comprises an outer panel, a sleeve extending downward from the outer panel, and a receiving cavity formed through the outer panel and the sleeve, the docking tongue and at least a portion of the base of the USB socket are inserted into the receiving cavity, the lower edge of the sleeve presses the top surface of the waterproof case, and the inner side of the sleeve presses the rubber ring.

7. The upright waterproof USB socket as claimed in claim 6, wherein the receiving cavity comprises a first cavity, a second cavity and a third cavity in sequence from top to bottom, the inner diameter of the first cavity is smaller than that of the second cavity, the inner diameter of the second cavity is smaller than that of the third cavity, the third cavity is in an inclined plane structure, and a pressure-joint inclined platform is formed at the joint of the first cavity and the second cavity.

8. The upright waterproof USB socket according to claim 7, wherein a pressed ramp limited by the pressed ramp is formed at a front end edge of the base, the rubber ring is pressed by an inner wall surface of the third cavity, and a bottom of the third cavity simultaneously presses an upper end edge of the waterproof case.

9. The upright waterproof USB socket of claim 1, wherein the first terminal set and the second terminal set are of a central symmetry structure, each terminal set includes a plurality of conductive terminals, a middle plate, an insulator that holds the middle plate and the plurality of conductive terminals together, and a metal reinforcing plate fastened to the outside of the insulator, the insulator includes a wrapped tail, a wrapped base that extends upward from the wrapped tail, an extension that extends upward from the wrapped base, and a tongue piece that extends upward from the extension, and the metal reinforcing plate is fastened to the outside of the wrapped tail and the wrapped base.

10. The upright waterproof USB socket as claimed in claim 9, wherein the conductive terminals include a contact portion and a solder leg extending downward from the contact portion, and the metal reinforcing plate includes a first plate covering the outer side of the wrapped tail portion, a bending portion formed by bending inward from the upper side of the first plate, a second plate covering the outer side of the wrapped base portion and extending upward from the bending portion, a blocking portion formed by bending inward from the top end of the second plate, and at least one fixed solder leg extending downward from the first plate.

11. The upright waterproof USB socket of claim 10, wherein the wrapped tail and the wrapped base are formed with a plurality of fixing posts and a plurality of fastening holes, and the first plate and the second plate are respectively formed with fixing holes and fastening pins corresponding to the fixing posts and the fastening holes.

12. The upright waterproof USB socket of claim 11, wherein the bending portion has a plurality of flowing slits formed thereon along the vertical direction for facilitating the flow of the molten plastic, and the insulator has symmetrically disposed positioning posts and positioning holes on the inner side thereof, wherein when the two terminal sets are stacked and combined, the positioning posts and positioning holes of the first terminal set are respectively matched with the positioning posts and positioning holes of the second terminal set.

13. The upright waterproof USB socket of claim 12, wherein when the insulator is injection molded, the fixed tail of the insulator completely covers the outer peripheral surface of the wrapped tail, the base completely covers the surface of the wrapped base, and the docking tongue covers all surfaces of the tongue except the surface of the contact portion of the conductive terminal.

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