WO2019056786A1 - Usb连接器 - Google Patents

Usb连接器 Download PDF

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Publication number
WO2019056786A1
WO2019056786A1 PCT/CN2018/088205 CN2018088205W WO2019056786A1 WO 2019056786 A1 WO2019056786 A1 WO 2019056786A1 CN 2018088205 W CN2018088205 W CN 2018088205W WO 2019056786 A1 WO2019056786 A1 WO 2019056786A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal member
usb connector
base
plastic casing
plastic
Prior art date
Application number
PCT/CN2018/088205
Other languages
English (en)
French (fr)
Inventor
张少灿
陈小硕
陆苏
Original Assignee
深圳市长盈精密技术股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710858729.6A external-priority patent/CN109546418B/zh
Priority claimed from CN201710862543.8A external-priority patent/CN107799962B/zh
Application filed by 深圳市长盈精密技术股份有限公司 filed Critical 深圳市长盈精密技术股份有限公司
Publication of WO2019056786A1 publication Critical patent/WO2019056786A1/zh
Priority to US16/408,665 priority Critical patent/US10673172B2/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/716—Coupling device provided on the PCB
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • H01R12/7011—Locking or fixing a connector to a PCB
    • H01R12/707—Soldering or welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6594—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • H01R13/6593—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable the shield being composed of different pieces

Definitions

  • the present invention relates to the field of electrical connectors, and more particularly to a USB connector.
  • the mobile phone field In the traditional mobile phone field, most of the mobile phone antennas are external, that is, the antenna extends out of the mobile phone, so that there is a defect that the appearance is not perfect, and at the same time, it takes up more space. Subsequently, the mobile phone field began to use the built-in antenna, that is, the antenna is placed inside the outer cover of the mobile phone, which solves the appearance problem well.
  • USB connector that removes the metal casing while preventing structural interference while preventing interference with the antenna signal.
  • the present application provides a USB connector soldered to a circuit board, including a docking component, a first metal member sleeved outside the docking component, a plastic casing provided with a receiving cavity, and an integral body.
  • a second metal member formed in the plastic casing, the docking component and the first metal component are inserted into the plastic casing, the docking component comprises an insulating body and a conductive terminal integrally formed in the insulating body.
  • the insulative housing includes a base portion and a mating tongue portion extending forwardly from the base portion, the first metal member including an annular body sleeved on the base portion and extending rearward from opposite sides of the annular body a formed soldering leg, the second metal member comprising a plate body formed in a side wall of the plastic outer casing, a second welding portion extending from the two sides of the plate body and extending toward the circuit board, and a retaining piece formed on the rear end of the base portion of the insulating body, and a soldering leg of the first metal member and a second soldering portion of the second metal member are respectively soldered to the corresponding circuit board position.
  • the tail of the docking component and the plastic casing is coated with a waterproof glue, and the waterproof rubber fills a gap between the insulating body, the plastic casing, the first metal member and the second metal member.
  • the rear end of the base of the insulative housing extends rearward to form a protruding portion, the protruding portion is provided with a through slot, and the conductive terminal portion is located in the through slot.
  • the waterproof glue is filled in the through groove and surrounds the conductive terminal.
  • the tail portion of the plastic casing is flush with the protruding portion, and a ring of glue receiving groove is formed between the plastic casing and the protruding portion, and the waterproof rubber is firmly supported by the protruding portion. Adhering to the glue receiving groove and the through groove.
  • the base of the insulative housing is provided with a card slot near the end of the abutting tongue, and the front end of the annular body of the first metal member is provided with a buckle portion that is inserted into the card slot, the ring shape A rear end of the main body corresponding to the base is provided with a hook portion that is held by the rear end of the base.
  • the lateral sides of the base extend outward to form a shoulder
  • the lateral sides of the first metal member are provided with a receiving portion corresponding to the shoulder position, and the shoulder is caught in the receiving portion.
  • the first metal member further includes an extension portion attached to the inner side wall of the receiving cavity, the extension portion is provided with a notch or a hole structure, and the inner surface of the extension portion is not higher than
  • the receiving cavity corresponds to an inner surface of the inner side wall, and the extending portion and the plate body of the second metal member are respectively located on opposite side walls of the receiving cavity.
  • the plate body of the second metal member is provided with a notch or hole structure.
  • the top of the recess or aperture structure is completely covered by the plastic outer casing.
  • the present application further provides a USB connector, including a docking component, a first metal member sleeved outside the docking component, a plastic casing provided with a receiving cavity, and integrally formed on the plastic a second metal piece in the outer casing, the docking component and the first metal piece are inserted into the plastic outer casing,
  • the docking component comprises an insulating body and a conductive terminal integrally formed in the insulating body
  • the insulating body comprises a base And abutting tongue formed from the front portion of the base portion
  • the first metal member includes an annular body sleeved on the base portion and a solder tail extending rearward from opposite sides of the annular body
  • the second metal member includes a plate body formed in a side wall of the plastic outer casing and a first welding portion extending rearward from opposite sides of the plate body, the first welding portion and the soldering foot mutually Paste and weld together.
  • the tail of the docking component and the plastic casing is coated with a waterproof glue, and the waterproof rubber fills a gap between the insulating body, the plastic casing, the first metal member and the second metal member.
  • the rear end of the base of the insulative housing extends rearward to form a protruding portion, the protruding portion is provided with a through slot, and the conductive terminal portion is located in the through slot.
  • the waterproof glue is filled in the through groove and surrounds the conductive terminal.
  • the tail portion of the plastic casing is flush with the protruding portion, and a ring of glue receiving groove is formed between the plastic casing and the protruding portion, and the waterproof rubber is firmly supported by the protruding portion. Adhering to the glue receiving groove and the through groove.
  • the base of the insulative housing is provided with a card slot near the end of the abutting tongue, and the front end of the annular body of the first metal member is provided with a buckle portion that is inserted into the card slot, the ring shape A rear end of the main body corresponding to the base is provided with a hook portion that is held by the rear end of the base.
  • the lateral sides of the base extend outward to form a shoulder
  • the lateral sides of the first metal member are provided with a receiving portion corresponding to the shoulder position, and the shoulder is caught in the receiving portion.
  • a recess is provided between the shoulders of the base, the recess receiving the rearwardly extending portion of the annular body such that the surface of the annular body is not higher than the surface of the base.
  • the plate body of the second metal member is provided with a notch, and an outer surface of the protruding portion of the notch is covered by the plastic outer casing without being exposed to the outside.
  • the second metal member further includes a second soldering portion extending from the lateral sides and being bent, and the soldering leg of the first metal member and the second soldering portion are soldered to the circuit board.
  • the USB connector of the present application adopts a plastic casing to avoid direct contact with the metal casing of the mobile phone to affect the radio frequency signal of the mobile phone, and at the same time, by providing a first metal member held by the docking component and a second metal integrally formed with the plastic casing And fixing the first metal piece and the second metal piece to the circuit board respectively, thereby ensuring the structural strength of the USB connector.
  • FIG. 5 are drawings of Embodiment 1 of the present application
  • FIG. 6 is a drawing of Embodiment 2 of the present application.
  • USB connector of the present application integrally soldered on a printed circuit board
  • USB connector of the present application is an exploded perspective view of the USB connector of the present application
  • FIG. 3 is an exploded perspective view of the docking assembly and the first metal member of the USB connector of the present application
  • FIG. 4 is another perspective exploded view of the docking assembly and the first metal member of the USB connector of the present application
  • FIG. 5 is a perspective assembled view of the docking assembly and the first metal member of the USB connector of the present application
  • FIG. 6 is a cross-sectional view of the USB connector of the present application.
  • FIG. 7 is a perspective view of the USB connector integrally soldered on a printed circuit board according to Embodiment 2 of the present application.
  • FIG. 8 is an exploded perspective view of a USB connector according to Embodiment 3 of the present application.
  • Figure 9 is a perspective view of the second metal member of the USB connector shown in Figure 8.
  • Figure 10 is a cross-sectional view of the USB connector of Figure 8.
  • the USB connector of the present application includes a docking component 10, a first metal component 30 wrapped around the docking component 10, and the first metal component 30 for inserting
  • the plastic outer casing 20 of the docking assembly 10 the second metal member 40 integrally formed in the plastic outer casing 20, and the waterproof rubber 50 coated on the tail portion of the docking assembly 10 and the plastic outer casing 20.
  • the docking assembly 10 includes an insulative housing 11 and a conductive terminal 12 integrally formed in the insulative housing 11 .
  • the insulative housing 11 includes a base portion 111 and abutting tongue portion 119 extending forward from the base portion 110.
  • the base portion 111 includes a recess portion 112 recessed downward from an upper side surface of the base portion 111, a shoulder portion 113 extending from lateral sides of the base portion 111, and a hollow portion formed under the shoulder portion 113.
  • a protruding portion 115 extending from a rear side of the base portion 11 , a through groove 116 formed through the protruding portion 115 in a vertical direction, and a sleeve portion 118 formed at an end of the base portion 111 adjacent to the abutting tongue portion 119
  • a plurality of card slots 117 recessed in the sleeve portion 118 and the rear end of the base portion 111.
  • a card slot 117 is defined on the upper and lower sides of the sleeve portion 118.
  • the base portion 111 is provided with a card slot 117 at least one side of the rear end of the mating tongue portion 119.
  • the conductive terminal 12 extends through the base portion 111 and extends to the butt tongue portion 119 and is exposed to the butt tongue portion 119.
  • the conductive terminal 12 is partially located in the through slot 116 and can be visually observed.
  • the first metal member 30 includes an annular body 31, a solder fillet 32 extending rearward from lateral sides of the annular body 31, and extending from the side of the annular body 31 toward the butt tongue 119. a extending portion 38, a notch or hole structure 39 formed on the lateral sides of the extending portion 38, and a plurality of latching portions 34, 35 formed on the annular body 31 and fastened to the card slot 117, And a receiving portion 37 formed at a position corresponding to the shoulder portion 113 of the insulative housing 11 on the lateral sides of the annular body 31.
  • the solder fillet 32 extends laterally outward from the annular body 31 and then extends rearward, thereby forming a bent portion 33.
  • the locking portions 35, 36 at the rear end of the first metal member 30 are formed on the base portion 111 of the docking assembly 10 after the first metal member 30 is mounted on the base portion 111 of the docking assembly 10, and then formed by stamping, bending, or the like.
  • the portions 35, 36 are snapped into the slot 117 at the rear end of the insulative housing 10 or are bent and fastened to the tail surface of the base portion 111, thereby the first metal member 30 is irreversibly fixed to the docking portion.
  • the extension portion 38 of the first metal member 30 is cut out to form a notch 381 to increase the bonding force with the plastic outer casing 20.
  • the hole structure 39 forms an inclined guiding portion 391 on the front side to smoothly engage and withdraw the hook (not shown) of the mating plug.
  • the plastic housing 20 is a hollow structure, and includes a receiving cavity 21 for receiving the docking assembly 10.
  • the first metal member 30 is attached to the plastic housing 20.
  • the upper inner wall of the receiving cavity 21 is provided with a groove structure (not shown) for accommodating the extending portion 38 so that the surface of the extending portion 38 does not protrude.
  • the upper inner surface of the receiving cavity 21 is received.
  • the second metal member 40 is integrally formed in the lower inner wall of the plastic outer casing 20 with respect to the upper inner wall, and includes a plate body 41, which is formed by bending from the lateral sides of the plate body 41 and extending rearward.
  • the first welded portion 43 and the second welded portion 44 which are bent from the lateral sides of the plate body 41 and then bent and extended in the lateral direction are bent again.
  • the first soldering portion 43 and the solder fillet 32 of the first metal member 30 are bonded together for spot welding.
  • the recess or hole structure 39 of the first metal member 30 is completely covered by the upper side wall of the plastic outer casing 20 without being exposed to the outside.
  • the notch or hole structure 39 may also be disposed on the plate body 41.
  • the plate body 41 and the extension portion 38 need to be on the upper and lower sides of the plastic case 20.
  • the position of the wall may be reversed, that is, the extension portion 38 extends to be attached to the lower inner wall of the plastic outer casing, and the plate body 41 is integrally formed on the upper inner wall of the plastic outer casing 20.
  • the protruding portion 115 of the tail portion of the insulating body 11 is flush with the tail surface of the plastic outer casing 20, so that a ring of glue receiving grooves (not labeled) is formed between the plastic outer casing 20 and the protruding portion 115.
  • the glue 50 is applied to the glue receiving groove of the joint of the docking component 10 and the tail end of the plastic casing 20, and the glue passes through the through groove 116 in the protruding portion 115 of the insulating body 11 so that the glue
  • the glue has more adhesive fulcrums, so that the glue is more firmly bonded to the butt joint 10 and the tail of the plastic casing 20 and penetrates into the gap between the insulating body 11 and the plastic casing 20.
  • the through groove 116 is disposed, and the glue surrounds the conductive terminal 12 to prevent water from seeping between the conductive terminal 12 and the insulating body 11.
  • solder fillet 32 is soldered and fixed to the soldering hole of the circuit board 60 and the second soldering portion 44.
  • the docking component 10 is a conductive terminal 12 manufactured by two injection molding processes.
  • the base portion 11 and the partial butt tongue of the insulative housing 11 of the docking component 10 are molded. 119.
  • the conductive terminal 12 must be fixed during the injection molding of the butt tongue 119, so that there is a gap in the conductive terminal 12 of the butt tongue 119, and the second injection molding is mainly to fill the gap. ;
  • the stamped and formed first metal member 30 is inserted into the base portion 111 of the insulative housing 11 from one end of the mating tongue portion 119 of the mating component 10, and the annular body 31 of the first metal member 30 is at this time.
  • the sleeve portion 118 is just pasted to the front end of the base portion 111, and the annular body 31 extends rearwardly into the recess portion 112 such that the outer surface of the annular body 31 is not higher than the base portion 111.
  • the locking portion 34 at the front end of the first metal member 30 is caught in the card slot 117 at the front end of the base portion 111, and then the first metal member 30 is formed by bending or stamping.
  • the latching portions 35, 36 of the end are snapped into the latching groove 117 at the rear end of the base portion 111 or are fastened to the surface of the tail portion of the base portion 111, whereby the first metal member 30 is irreversibly held by the insulating portion.
  • the second metal member 40 and the plastic outer casing 20 are integrally formed, and the docking assembly 10 and the first metal member 30 are inserted into the plastic outer casing 20 from one end of the plastic outer casing 20, at this time,
  • the solder fillet 32 of the first metal member 30 and the first solder portion 43 of the second metal member 40 are attached to each other, and the solder fillet 32 and the first solder portion 43 are spot-welded.
  • the welding is integrated, and the plastic outer casing 20 is fixedly integrated with the docking assembly 10.
  • the extending portion 38 of the first metal member 30 extends forwardly into the groove structure of the plastic outer casing 20 and is fixed in the groove structure by means of inlay or edge snapping;
  • a waterproof adhesive 50 is applied to the tailing assembly 10 and the tail of the plastic outer casing 20.
  • the waterproof adhesive 50 penetrates into the plastic outer casing 20, the insulating body 11, the first metal member 30 and the second metal member 40.
  • the gap between the end of the USB connector and the receiving cavity 21 of the plastic housing 20 is airtight and waterproof, so that the water in the receiving cavity 21 cannot enter the electronic device through the gap filled by the waterproof adhesive 50;
  • the waterproof adhesive 50 fills the through-groove 116 of the tail portion of the insulative housing 11 to surround the conductive terminal 12 to increase the airtightness between the conductive terminal 12 and the insulative housing 11, and the protrusion 115 is located In the middle position, the waterproof rubber 50 has a better support point, and is not easily peeled off after drying to enhance the waterproof effect;
  • the USB connector is mounted on the circuit board 60, and the solder fillet 32 of the first metal member 30 and the second solder portion 44 of the second metal member 40 are soldered to the circuit in a patch or jack manner.
  • the robustness and stability of the USB connector are enhanced by multi-point soldering, and at the same time, the relative position of the plastic housing 20 and the docking unit 10 on the circuit board 60 is not affected by the external force, thereby affecting the performance. And waterproof performance.
  • the USB connector of the present application adopts a plastic casing 20 to avoid direct contact with the metal casing of the mobile phone and affects the radio frequency signal of the mobile phone.
  • the first metal member 30 held by the docking component 10 and the plastic casing 20 are integrally formed.
  • the second metal member 40 is then welded or fixed to the second metal member 40 or fixedly soldered to the circuit board 60 to ensure the structural strength of the USB connector.
  • the USB connector of the present application applies a waterproof adhesive 50 to the tail of the docking component 10 and the plastic casing 20 to connect the insulating body 11 , the plastic casing, the first metal member 30 and the second metal member 40.
  • the gap is filled with waterproof glue 50 to achieve waterproof performance.
  • the second metal member 40 further includes at least one holding piece 45 extending rearward from the tail portion of the plate body 41, After the mating component 10 and the first metal component 30 are inserted into the plastic outer casing 20, the retaining piece 45 is bent by the retaining piece 45 to hold the bent portion of the retaining piece 45 in the
  • the tail surface of the base portion 111 of the insulative housing 11 is integrally integrated with the mating component 10, and at this time, the first soldering portion 43 of the second metal member 40 can be eliminated, and directly passed through the The solder fillet 32 of a metal member 30 and the second solder portion 44 of the second metal member 40 are soldered to the circuit board 60 to fix the position between each other, and the stability and reliability between the components can also be achieved.
  • the first metal member 30 is not provided with the extension portion 38 and the hole disposed on the extension portion 38.
  • a structure, and two notches 42 for snapping with the mating plug are formed on the plate body 41 of the second metal member 40.
  • the second metal member 40 is integrally formed on the lower side of the plastic outer casing 20. Inside the wall, including a plate body 41, two notches 42 formed on the plate body 41 for snapping with a mating plug (not shown), the outer surface of the notch 42 is completely covered by the The inside of the plastic casing 20, that is, the convex side of the recess 42 does not leak out of the outside.
  • the annular body 31 of the first metal member 30 extends toward the socket of the plastic housing 20 to form an extension, and the notch 42 is disposed on the extension portion.
  • the plate body 41 of the second metal member 40 is integrally formed on the other side of the plastic outer casing 20 with respect to the extension portion.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

一种 USB 连接器，焊接于电路板上，包括对接组件、套设于所述对接组件外的第一金属件、设有收容空腔的塑胶外壳及一体成型于所述塑胶外壳内的第二金属件，所述对接组件及第一金属件***所述塑胶外壳内，所述对接组件包括绝缘本体及一体成型于所述绝缘本体内的导电端子，所述绝缘本体包括基部及自所述基部前向延伸形成的对接舌部，所述第一金属件包括套设于所述基部上的环状主体及自所述环状主体相对两侧向后延伸形成的焊脚，所述第二金属件包括成型于所述塑胶外壳一侧壁内的板体、自所述板体两侧折弯后朝向电路板延伸形成的第二焊接部，所述焊脚与所述第二焊接部分别焊接于所述电路板的对应位置。本申请 USB 连接器不干扰射频信号，且结构坚固稳定。

Description

USB连接器 技术领域
本发明涉及电连接器领域，尤指一种USB连接器。
背景技术
在传统手机领域，手机天线大多外置，即天线延伸出手机外部，如此设置存在外观不完美的缺陷，同时，会占用更多空间。随后，手机领域开始采用内置天线，即将天线置于手机外盖内，很好地解决了外观问题。
当前，随着金属手机中框的使用，多数终端厂商将手机中框直接设置为手机天线，而穿越所述金属中框的USB连接器的金属铁壳会严重干扰手机天线的射频信号。
发明内容
鉴于此，有必要提供一种USB连接器，在兼顾结构强度的同时去除金属外壳，防止干扰天线信号。
为解决上述技术问题，本申请提供了一种USB连接器，焊接于电路板上，包括对接组件、套设于所述对接组件外的第一金属件、设有收容空腔的塑胶外壳及一体成型于所述塑胶外壳内的第二金属件，所述对接组件及第一金属件***所述塑胶外壳内，所述对接组件包括绝缘本体及一体成型于所述绝缘本体内的导电端子，所述绝缘本体包括基部及自所述基部前向延伸形成的对接舌部，所述第一金属件包括套设于所述基部上的环状主体及自所述环状主体相对两侧向后延伸形成的焊脚，所述第二金属件包括成型于所述塑胶外壳一侧壁内的板体、自所述板体两侧折弯后朝向电路板延伸形成的第二焊接部及自所述板体向后延伸形成的卡固于所述绝缘本体基部尾部的固持片，所述第一金属件的焊 脚与所述第二金属件的第二焊接部分别焊接于所述电路板的对应位置。
优选地，所述对接组件及塑胶外壳的尾部涂抹有防水胶，所述防水胶填充所述绝缘本体、塑胶外壳、第一金属件、第二金属件之间的缝隙。
优选地，所述绝缘本体的基部后端向后延伸形成突出部，所述突出部上开设有贯通槽，所述导电端子部分位于所述贯通槽。
优选地，所述防水胶填充于所述贯通槽内并环绕所述导电端子。
优选地，所述塑胶外壳的尾部与所述突出部平齐，在所述塑胶外壳与所述突出部之间形成一圈胶水容置槽，所述防水胶以所述突出部为支点稳固地粘附于所述胶水容置槽与所述贯通槽内。
优选地，所述绝缘本体的基部靠近所述对接舌部一端设有卡槽，所述第一金属件的环状主体前端设有卡入所述卡槽内的卡扣部，所述环状主体的对应所述基部的后端设有与所述基部后端固持的卡扣部。
优选地，，所述基部横向两侧向外延伸形成肩部，所述第一金属件的横向两侧对应所述肩部位置处设有容纳部，所述肩部卡入所述容纳部内。
优选地，所述第一金属件还包括贴附于所述收容空腔的内侧壁上的延展部，所述延展部上设有凹口或孔结构，所述延展部的内表面不高于所述收容空腔对应内侧壁的内表面，所述延展部与所述第二金属件的板体分别位于所述收容空腔相对的两个侧壁上。
优选地，所述第二金属件的板体上设有凹口或孔结构。
优选地，所述凹口或孔结构的上方被所述塑胶外壳完全覆盖。
为解决上述技术问题，本申请还提供了一种USB连接器，包括对接组件、套设于所述对接组件外的第一金属件、设有收容空腔的塑胶外壳及一体成型于所述塑胶外壳内的第二金属件，所述对接组件及第一金属件***所述塑胶外壳内，所述对接组件包括绝缘本体及一体成型于所述绝缘本体内的导电端子，所述绝缘本体包括基部及自所述基部前向延伸形成的对接舌部，所述第一金属件包括套设于所述基部上的环状主体及自所述环状主体相对两侧向后延伸形成 的焊脚，所述第二金属件包括成型于所述塑胶外壳一侧壁内的板体及自所述板体两侧向后延伸形成的第一焊接部，所述第一焊接部与所述焊脚相互贴合并焊接为一体。
优选地，所述对接组件及塑胶外壳的尾部涂抹有防水胶，所述防水胶填充所述绝缘本体、塑胶外壳、第一金属件、第二金属件之间的缝隙。
优选地，所述绝缘本体的基部后端向后延伸形成突出部，所述突出部上开设有贯通槽，所述导电端子部分位于所述贯通槽。
优选地，所述防水胶填充于所述贯通槽内并环绕所述导电端子。
优选地，所述塑胶外壳的尾部与所述突出部平齐，在所述塑胶外壳与所述突出部之间形成一圈胶水容置槽，所述防水胶以所述突出部为支点稳固地粘附于所述胶水容置槽与所述贯通槽内。
优选地，所述绝缘本体的基部靠近所述对接舌部一端设有卡槽，所述第一金属件的环状主体前端设有卡入所述卡槽内的卡扣部，所述环状主体的对应所述基部的后端设有与所述基部后端固持的卡扣部。
优选地，所述基部横向两侧向外延伸形成肩部，所述第一金属件的横向两侧对应所述肩部位置处设有容纳部，所述肩部卡入所述容纳部内。
优选地，所述基部的两肩部之间设有凹陷部，所述凹陷部容纳所述环状主体向后延伸部分以使所述环状主体的表面不高于所述基部的表面。
优选地，所述第二金属件的板体上设有凹口，所述凹口的凸出部的外表面被所述塑胶外壳覆盖而不露出于外界。
优选地，所述第二金属件还包括自横向两侧折弯后延伸形成的第二焊接部，所述第一金属件的焊脚与所述第二焊接部焊接于电路板上。
本申请的USB连接器采用塑胶外壳以避免直接与手机金属外壳接触而影响手机射频信号，同时，通过设置与所述对接组件固持的第一金属件及与所述塑胶外壳一体成型的第二金属件，再将所述第一金属件与所述第二金属件分别固定焊接于电路板上，保证了USB连接器的结构强度。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。图1至图5为本申请实施例一的附图，图6为本申请实施例二的附图。
图1为本申请USB连接器整体焊接于印刷电路板上的立体图；
图2为本申请USB连接器的立体分解图；
图3为本申请USB连接器的对接组件、第一金属件的立体分解图；
图4为本申请USB连接器的对接组件、第一金属件的另一角度立体分解图；
图5为本申请USB连接器的对接组件、第一金属件的立体组合图；
图6为本申请USB连接器的剖视图；
图7为本申请实施例二USB连接器整体焊接于印刷电路板上的立体图；
图8为本申请实施例三USB连接器的立体分解图；
图9为图8所示USB连接器的第二金属件的立体图；
图10为图8所示USB连接器的剖视图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
实施例一
请参阅图1、图2所示，本申请USB连接器包括对接组件10、包覆于所述对接组件10外的第一金属件30、用于插装所述第一金属件30与所述对接组件10的塑胶外壳20、一体成型于所述塑胶外壳20内的第二金属件40、及涂覆于所述对接组件10与塑胶外壳20尾部的防水胶50。
请参阅图3、图4、图5所示，所述对接组件10包括绝缘本体11及一体成型于所述绝缘本体11内的导电端子12。所述绝缘本体11包括基部111、及自所述基部110前向延伸出的对接舌部119。所述基部111包括自所述基部111的上侧表面向下凹陷形成的凹陷部112、自所述基部111横向两侧延伸形成的肩部113、形成于所述肩部113下的掏空部114、自所述基部11后侧延伸形成的突出部115、在上下方向贯穿所述突出部115形成的贯通槽116、形成于所述基部111靠近所述对接舌部119一端的套设部118、及凹设于所述套设部118及基部111后端上的若干卡槽117。所述套设部118的上下两侧表面上均设有卡槽117，所述基部111远离所述对接舌部119的后端至少一侧表面设有卡槽117。
所述导电端子12贯穿所述基部111并延伸至所述对接舌部119且露出于所述对接舌部119。所述导电端子12部分位于所述贯通槽116内，并可通过肉眼观察。
所述第一金属件30包括环状主体31、自所述环状主体31横向两侧向后延伸形成的焊脚32、自所述环状主体31一侧朝向所述对接舌部119延伸形成的延展部38、开设于所述延展部38横向两侧的凹口或孔结构39、形成于所述环状主体31上卡扣于所述卡槽117上的若干卡扣部34，35，36、及设于所述环状主体31横向两侧对应所述绝缘本体11的肩部113位置处切除形成的容纳部37。所述焊脚32自所述环状主体31向横向外侧延伸后再向后延伸，并由此形成折弯部33。所述第一金属件30后端的卡扣部35，36是在所述第一金属件30装入所述对接组件10的基部111上后，再通过冲压、折弯等工艺形成所述卡扣部35，36并卡入所述绝缘本体10后端的卡槽117内或折弯扣持于所述基部111的尾部表面上，由此将所述第一金属件30不可逆地固定于所述对接组件10上。所述第一金属件30的延展部38中间切除形成缺口381以增加与所述塑胶外壳20的结合力。所述孔结构39在前侧形成倾斜的导引部391以使对接插头的卡勾(未图示)顺利扣合与退出。
请参阅图2、图5、图6所示，所述塑胶外壳20为中空结构，包括***述对接组件10的收容空腔21，所述第一金属件30贴附于所述塑胶外壳20的收容空腔21的上侧内壁上，所述收容空腔21的上侧内壁设有容纳所述延展部38的槽结构(未图示)以使所述延展部38的表面不凸出于所述收容空腔21的上侧内表面。所述第二金属件40一体成型于所述塑胶外壳20相对于所述上侧内壁的下侧内壁内，包括板体41、自所述板体41横向两侧折弯后向后延伸形成的第一焊接部43、及自所述板体41横向两侧折弯后再向横向方向折弯延伸后再次折弯形成的第二焊接部44。所述第一焊接部43与所述第一金属件30的焊脚32贴合于一起进行点焊固定。所述第一金属件30的凹口或孔结构39被所述塑胶外壳20的上侧壁完全覆盖而不露出于外界。
在一实施例中，所述凹口或孔结构39也可以设于所述板体41上，此时，仅需要将所述板体41与所述延展部38在所述塑胶外壳20上下侧壁的位置对换即可，即所述延展部38延伸贴合于所述塑胶外壳的下侧内壁上，所述板体41一体成型于所述塑胶外壳20的的上侧内壁上。
所述绝缘本体11尾部的突出部115与所述塑胶外壳20的的尾部表面平齐，如此在所述塑胶外壳20与所述突出部115之间形成一圈胶水容置槽(未标号)。
所述胶水50涂覆于所述对接组件10与所述塑胶外壳20尾部结合处的胶水容置槽内，同时，所述胶水穿越所述绝缘本体11的突出部115内的贯通槽116以使所述胶水具有更多的粘合支点，使胶水更为牢固地粘接于所述对接组件10与所述塑胶外壳20的尾部并渗入所述绝缘本体11与所述塑胶外壳20之间的缝隙。同时，所述贯通槽116的设置，胶水环绕所述导电端子12以防止所述导电端子12与所述绝缘本体11之间出现渗水。
所述焊脚32与所述第二焊接部44***电路板60的焊孔内焊接固定。
请参阅图1-6所示，以下将结合附图详细说明本申请USB连接器的组装原理：
首先，提供对接组件10，所述对接组件10是导电端子12通过两次注塑成型工艺制造而成，第一次注塑时，成型所述对接组件10的绝缘本体11的基部11及部分对接舌部119，同时，所述对接舌部119处注塑时必须对导电端子12进行固定，由此在对接舌部119的导电端子12部位存在缺口，第二次注塑成型主要是对所述缺口进行补齐；
随后，将冲压成型好的第一金属件30自所述对接组件10的对接舌部119一端套入所述绝缘本体11的基部111上，此时所述第一金属件30的环状主体31刚好贴合所述基部111前端的套设部118，部分所述环状主体31向后延伸至所述凹陷部112内，使所述环状主体31的外表面不高于所述基部111的上表面，完全套入后，所述第一金属件30前端的卡扣部34卡入所述基部111前端的卡槽117内，再通过折弯或冲压的成型所述第一金属件30后端的卡扣部35，36并卡入所述基部111后端的卡槽117或扣持于所述基部111尾部的表面上，由此，将所述第一金属件30不可逆地固持于所述绝缘本体10上；
再然后，提供成型于一体的第二金属件40与所述塑胶外壳20，将所述对接组件10与第一金属件30自所述塑胶外壳20一端***所述塑胶外壳20内，此时，所述第一金属件30的焊脚32与所述第二金属件40的第一焊接部43相互贴合在一起，通过点焊的方式将所述焊脚32与所述第一焊接部43焊接为一体，使所述塑胶外壳20与所述对接组件10固接为一体。所述第一金属件30的延展部38向前延伸入所述塑胶外壳20的槽结构内并通过内嵌或边缘卡扣的方式固定于所述槽结构内；
最后，在所述对接组件10与所述塑胶外壳20的尾部涂抹防水胶50，所述防水胶50渗入所述塑胶外壳20、绝缘本体11、第一金属件30及第二金属件40相互之间的缝隙，使USB连接器的尾部与所述塑胶外壳20的收容空腔21实现气密性防水，使收容空腔21内的水无法穿越所述防水胶50填补的缝隙进入电子设备内；同时，所述防水胶50填充所述绝缘本体11尾部的贯通槽116内环绕所述导电端子12以增加导电端子12与所述绝缘本体11之间的气 密性，且所述突出部115位于中间位置，使所述防水胶50有较好的支撑点，在干燥后不易脱落以增强防水效果；
最后将所述USB连接器安装于电路板60上，所述第一金属件30的焊脚32与所述第二金属件40的第二焊接部44以贴片方式或插孔方式焊接于电路板60上，通过多点焊接增强了USB连接器的牢固、稳定性，同时保证所述塑胶外壳20与所述对接组件10在电路板60上的相对位置不会因外力发生变化而影响使用性能及防水性能。
本申请的USB连接器采用塑胶外壳20以避免直接与手机金属外壳接触而影响手机射频信号，同时，通过设置与所述对接组件10固持的第一金属件30及与所述塑胶外壳20一体成型的第二金属件40，再将所述第一金属件30与所述第二金属件40相互焊接固定或者分别固定焊接于电路板60上，保证了USB连接器的结构强度。
同时，本申请的USB连接器在所述对接组件10与所述塑胶外壳20的尾部涂抹防水胶50，使所述绝缘本体11、塑胶外壳、第一金属件30与第二金属件40之间的缝隙填充满防水胶50，实现了防水的性能。
实施例二
请继续参阅图6所示，本申请实施例二相较于实施例一的区别在于：所述第二金属件40还包括自所述板体41尾部向后延伸形成的至少一个固持片45，所述固持片45在所述对接组件10与所述第一金属件30***所述塑胶外壳20内后，通过折弯所述固持片45以使所述固持片45的折弯部分固持于所述绝缘本体11的基部111的尾部表面以将所述塑胶外壳20与对接组件10结合为一体，此时，所述第二金属件40的第一焊接部43可以取消，而直接通过所述第一金属件30的焊脚32与第二金属件40的第二焊接部44焊接于电路板60上来固定相互之间的位置，同样可以实现各部件之间的稳定性与可靠性。
实施例三
请继续参阅图8、图9和图10，本申请实施例三相较于实施例一的区别在 于：本实施例中第一金属件30未设置延展部38及设置于延展部38上的孔结构，而在第二金属件40的板体41上形成用于与对接插头卡扣的两个凹口42，具体地，所述第二金属件40一体成型于所述塑胶外壳20的下侧壁内，包括板体41、形成于所述板体41上用于与对接插头(未图示)卡扣的两个凹口42、所述凹口42的外表面被完全包覆于所述塑胶外壳20内，即所述凹口42的凸起一侧不漏出于外界。
在一实施例中，所述第一金属件30的环状主体31朝向所述塑胶外壳20的插口方向延伸形成延伸部，并将所述凹口42设于所述延伸部上，此时，所述第二金属件40的板体41则一体成型于所述塑胶外壳20相对于所述延伸部的另一侧。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个......”限定的要素，并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (20)

  1. 一种USB连接器，焊接于电路板上，其中，所述USB连接器包括对接组件、套设于所述对接组件外的第一金属件、设有收容空腔的塑胶外壳及一体成型于所述塑胶外壳内的第二金属件，所述对接组件及第一金属件***所述塑胶外壳内，所述对接组件包括绝缘本体及一体成型于所述绝缘本体内的导电端子，所述绝缘本体包括基部及自所述基部前向延伸形成的对接舌部，所述第一金属件包括套设于所述基部上的环状主体及自所述环状主体相对两侧向后延伸形成的焊脚，所述第二金属件包括成型于所述塑胶外壳一侧壁内的板体、自所述板体两侧折弯后朝向电路板延伸形成的第二焊接部及自所述板体向后延伸形成的卡固于所述绝缘本体基部尾部的固持片，所述第一金属件的焊脚与所述第二金属件的第二焊接部分别焊接于所述电路板的对应位置。
  2. 如权利要求1所述的USB连接器，其中，所述对接组件及塑胶外壳的尾部涂抹有防水胶，所述防水胶填充所述绝缘本体、塑胶外壳、第一金属件、第二金属件之间的缝隙。
  3. 如权利要求2所述的USB连接器，其中，所述绝缘本体的基部后端向后延伸形成突出部，所述突出部上开设有贯通槽，所述导电端子部分位于所述贯通槽。
  4. 如权利要求3所述的USB连接器，其中，所述防水胶填充于所述贯通槽内并环绕所述导电端子。
  5. 如权利要求4所述的USB连接器，其中，所述塑胶外壳的尾部与所述突出部平齐，在所述塑胶外壳与所述突出部之间形成一圈胶水容置槽，所述防水胶以所述突出部为支点稳固地粘附于所述胶水容置槽与所述贯通槽内。
  6. 如权利要求1所述的USB连接器，其中，所述绝缘本体的基部靠近所述对接舌部一端设有卡槽，所述第一金属件的环状主体前端设有卡入所述卡槽内的卡扣部，所述环状主体的对应所述基部的后端设有与所述基部后端固持的卡扣部。
  7. 如权利要求1或6任一项所述的USB连接器，其中，所述基部横向两侧向外延伸形成肩部，所述第一金属件的横向两侧对应所述肩部位置处设有容纳部，所述肩部卡入所述容纳部内。
  8. 如权利要求1所述的USB连接器，其中，所述第一金属件还包括贴附于所述收容空腔的内侧壁上的延展部，所述延展部上设有凹口或孔结构，所述延展部的内表面不高于所述收容空腔对应内侧壁的内表面，所述延展部与所述第二金属件的板体分别位于所述收容空腔相对的两个侧壁上。
  9. 如权利要求1所述的USB连接器，其中，所述第二金属件的板体上设有凹口或孔结构。
  10. 如权利要求8或9任一项所述的USB连接器，其中，所述凹口或孔结构的上方被所述塑胶外壳完全覆盖。
  11. 一种USB连接器，其中，USB连接器包括对接组件、套设于所述对接组件外的第一金属件、设有收容空腔的塑胶外壳及一体成型于所述塑胶外壳内的第二金属件，所述对接组件及第一金属件***所述塑胶外壳内，所述对接组件包括绝缘本体及一体成型于所述绝缘本体内的导电端子，所述绝缘本体包括基部及自所述基部前向延伸形成的对接舌部，所述第一金属件包括套设于所述基部上的环状主体及自所述环状主体相对两侧向后延伸形成的焊脚，所述第二金属件包括成型于所述塑胶外壳一侧壁内的板体及自所述板体两侧向后延伸形成的第一焊接部，所述第一焊接部与所述焊脚相互贴合并焊接为一体。
  12. 如权利要求11所述的USB连接器，其中，所述对接组件及塑胶外壳的尾部涂抹有防水胶，所述防水胶填充所述绝缘本体、塑胶外壳、第一金属件、第二金属件之间的缝隙。
  13. 如权利要求12所述的USB连接器，其中，所述绝缘本体的基部后端向后延伸形成突出部，所述突出部上开设有贯通槽，所述导电端子部分位于所述贯通槽。
  14. 如权利要求13所述的USB连接器，其中，所述防水胶填充于所述贯通槽内并环绕所述导电端子。
  15. 如权利要求14所述的USB连接器，其中，所述塑胶外壳的尾部与所述突出部平齐，在所述塑胶外壳与所述突出部之间形成一圈胶水容置槽，所述防水胶以所述突出部为支点稳固地粘附于所述胶水容置槽与所述贯通槽内。
  16. 如权利要求11所述的USB连接器，其中，所述绝缘本体的基部靠近所述对接舌部一端设有卡槽，所述第一金属件的环状主体前端设有卡入所述卡槽内的卡扣部，所述环状主体的对应所述基部的后端设有与所述基部后端固持的卡扣部。
  17. 如权利要求11或16任一项所述的USB连接器，其中，所述基部横向两侧向外延伸形成肩部，所述第一金属件的横向两侧对应所述肩部位置处设有容纳部，所述肩部卡入所述容纳部内。
  18. 如权利要求17所述的USB连接器，其中，所述基部的两肩部之间设有凹陷部，所述凹陷部容纳所述环状主体向后延伸部分以使所述环状主体的表面不高于所述基部的表面。
  19. 如权利要求11所述的USB连接器，其中，所述第二金属件的板体上设有凹口，所述凹口的凸出部的外表面被所述塑胶外壳覆盖而不露出于外界。
  20. 如权利要求19所述的USB连接器，其中，所述第二金属件还包括自横向两侧折弯后延伸形成的第二焊接部，所述第一金属件的焊脚与所述第二焊接部焊接于电路板上。
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