CN216698820U

CN216698820U - SMT board upper form USB TYPE-C connector

Info

Publication number: CN216698820U
Application number: CN202123126318.9U
Authority: CN
Inventors: 刘纯望
Original assignee: Dongguan Sanji Electronic Co ltd
Current assignee: Dongguan Sanji Electronic Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-06-07
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a SMT board TYPE USB TYPE-C connector, which comprises: the insulation body comprises a first injection molding assembly, a second injection molding assembly and a first plastic part for connecting the first injection molding assembly and the second injection molding assembly, and the first injection molding assembly, the second injection molding assembly and the first plastic part are molded into a whole through in-mold injection; the first injection molding assembly comprises a plurality of upper terminals which are arranged at intervals and a second plastic part which fixes the plurality of upper terminals into a whole through in-mold injection molding, the second injection molding assembly comprises a plurality of lower terminals which are arranged at intervals, a middle clamping piece and a third plastic part which fixes the plurality of lower terminals and the middle clamping piece into a whole and separates at intervals through in-mold injection molding, and the middle clamping piece is positioned between the upper terminals and the lower terminals. Utilize integrated into one piece to fix last terminal and lower terminal and well clamping piece in the insulator body, the bulk strength is superior, and the structure is also compacter, is difficult for scattering, and life is longer.

Description

SMT board upper form USB TYPE-C connector

The technical field is as follows:

the utility model relates to the field of connectors, in particular to an SMT board TYPE USB TYPE-C connector.

Background art:

electrical connectors, also commonly referred to as circuit connectors, bridge two conductors in a circuit so that current or signals can flow from one conductor to the other. An electrical connector is a electromechanical system that provides a separable interface for connecting two sub-electronic systems, simply, the components used to complete the electrical connection between the electronic circuits or machines are called connectors, i.e., the bridge between the two.

At present when the connector of two rows of terminal structures of equipment, what adopt usually is to insert two rows of terminals one by one in this insulating body, and the position of terminal is fixed to other supplementary spare parts of rethread, at last with the accurate assembly of insulating body to metal casing in, adopt this kind of assembly mode process miscellaneous, and then lead to the packaging efficiency low, the overall structure intensity is poor after assembling moreover, scatters easily.

In view of the above, the present inventors propose the following.

The utility model has the following contents:

the utility model aims to overcome the defects of the prior art and provides an SMT on-board USB TYPE-C connector.

In order to solve the technical problems, the utility model adopts the following technical scheme: an SMT on-board TYPE USB TYPE-C connector, comprising: the insulation structure comprises an insulation body and a metal shell sleeved on the insulation body, wherein the insulation body comprises a first injection molding assembly, a second injection molding assembly and a first plastic part for connecting the first injection molding assembly and the second injection molding assembly, and the first injection molding assembly, the second injection molding assembly and the first plastic part are molded into a whole through in-mold injection molding; the first injection molding assembly comprises a plurality of upper terminals arranged at intervals and a plurality of second plastic parts fixed into a whole by injection molding in a die, the second injection molding assembly comprises a plurality of lower terminals arranged at intervals, a middle clamping piece and a plurality of third plastic parts fixed into a whole by the lower terminals and the middle clamping piece and separated at intervals by injection molding in the die, and the middle clamping piece is positioned between the upper terminals and the lower terminals.

Furthermore, in the above technical scheme, the rear end molding of the middle clamping piece has a first current-resistant bump protruding from the insulating body and electrically contacting with the inner wall of the metal shell on two sides, the front end molding of the middle clamping piece has a second current-resistant bump protruding from the insulating body on two sides and electrically contacting with the plug, the middle molding of the middle clamping piece has a third current-resistant bump protruding from the insulating body on two sides and electrically contacting with the plug, and two sides of the front portion of the middle clamping piece extend out of the insulating body.

Furthermore, in the above technical solution, the lower terminal is located on the lower end surface of the third plastic part, the middle clip is located on the upper end surface of the third plastic part, and a plurality of first through holes for enhancing the connection stability with the third plastic part are formed on the middle clip; the rear end part of the upper end surface of the third plastic part is provided with a plurality of spaced distribution and used for positioning the first positioning groove of the upper terminal, the middle part of the upper end surface of the third plastic part is formed with a supporting boss used for separating the middle clamping piece from the upper terminal, the supporting boss is provided with a plurality of spaced distribution and used for aligning the second positioning groove of the upper terminal, and the front end part of the upper end surface of the third plastic part is formed with a plurality of supporting convex blocks used for separating the distribution and used for the upper terminal.

Furthermore, in the above technical solution, the first contact head portion of the front end of the upper terminal and the second contact head portion of the front end of the lower terminal are arranged symmetrically in a duckbilled shape at the front end of the third plastic part and are embedded in the first plastic part, the first pin portion of the rear end of the upper terminal and the second pin portion of the rear end of the lower terminal are arranged in a linear interval manner and extend out of the first plastic part, and the first conductive portion of the middle of the upper terminal and the second conductive portion of the middle of the lower terminal protrude out of the upper end face and the lower end face of the first plastic part respectively.

Furthermore, in the above technical solution, the front part of the upper end surface of the metal shell is provided with two first contact spring pieces which are bent inwards in parallel, and the middle part of the lower end surface of the metal shell is provided with two first contact convex hulls which are protruded inwards in parallel; the two sides of the lower end face of the metal shell are provided with four welding pins in a matrix distribution in a bending mode, and the four welding pins are plated with soldering tin layers.

Furthermore, in the above technical scheme, the rear portion of the upper end face of the metal shell is provided with two first stop bosses which are protruded in parallel and inward punching and used for stopping the insertion depth of the plug, the rear portion of the lower end face of the metal shell is provided with two second stop bosses which are protruded in parallel and inward punching and used for stopping the insertion depth of the plug, and the rear end of each first stop boss is provided with two first clamping elastic pieces which are symmetrically bent inward and used for tightly clamping and fixing the insulating body in the metal shell.

Furthermore, in the above technical solution, the insulation body includes a tongue portion and a base portion formed with a rear end of the tongue portion, the base portion is clamped between the first stop boss and the first clamping elastic piece, a first clamping groove and a second clamping groove are formed on front and rear sides of an upper end of the base portion, the first clamping groove and the second clamping groove are respectively clamped with the first stop boss and the first clamping elastic piece, and a third clamping groove is formed on a front side of a lower end of the base portion, the third clamping groove is clamped with the second stop boss; the lower end of the base part is provided with two positioning convex columns which penetrate through the lower end face of the metal shell in parallel, and the front parts of the upper terminal and the lower terminal are positioned at the upper side and the lower side of the tongue plate part.

After adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects: according to the connector assembly, the upper terminals are arranged and integrally formed with the second plastic part into the first injection molding assembly through in-mold injection, the lower terminals are arranged and integrally formed with the middle clamping piece and the third plastic part into the second injection molding assembly through in-mold injection, the first injection molding assembly, the second injection molding assembly and the first plastic part are integrally formed into the insulating body through in-mold injection, and finally the insulating body is installed in the metal shell to complete connector assembly. Secondly, with last terminal and lower terminal respectively injection moulding for first subassembly and the second subassembly of moulding plastics, realize the modularization production equipment, not only can improve production packaging efficiency, reduce numerous and diverse equipment process, can also promote overall structure stability.

Description of the drawings:

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a perspective view of the insulator body of the present invention;

FIG. 4 is an exploded view of the second embodiment of the present invention;

FIG. 5 is an exploded view of a first injection molded part of the present invention;

FIG. 6 is a front view of the present invention;

FIG. 7 is an exploded view of a second injection molded part of the present invention;

FIG. 8 is a cross-sectional view of section A-A of FIG. 6;

fig. 9 is a sectional view of section B-B in fig. 6.

The specific implementation mode is as follows:

the utility model is further illustrated below with reference to specific embodiments and the accompanying drawings.

Referring to fig. 1 to 9, an SMT board TYPE USB TYPE-C connector includes: the insulation structure comprises an insulation body 1 and a metal shell 2 sleeved on the insulation body 1, wherein the insulation body 1 comprises a first injection molding assembly 3, a second injection molding assembly 4 and a first plastic part 5 for connecting the first injection molding assembly 3 and the second injection molding assembly 4, and the first injection molding assembly 3, the second injection molding assembly 4 and the first plastic part 5 are formed into a whole through in-mold injection molding; the first injection molding component 3 comprises a plurality of upper terminals 31 arranged at intervals and a plurality of second plastic parts 32 fixed to the upper terminals 31 into a whole through in-mold injection molding, the second injection molding component 4 comprises a plurality of lower terminals 41 arranged at intervals, middle clamping pieces 42 and third plastic parts 43 fixed to the lower terminals 41 and the middle clamping pieces 42 into a whole and spaced apart through in-mold injection molding, and the middle clamping pieces 42 are located between the upper terminals 31 and the lower terminals 41. The upper terminal 31 is arranged to be integrally formed into a first injection molding assembly 3 with a second plastic part 32 through in-mold injection molding, the lower terminal 41 is arranged to be integrally formed into a second injection molding assembly 4 with a middle clamping piece 42 and a third plastic part 43 through in-mold injection molding, the first injection molding assembly 3, the second injection molding assembly 4 and a first plastic part 5 are integrally formed into an insulating body 1 through in-mold injection molding, and finally the insulating body 1 is installed in a metal shell 2 to complete connector assembly. Secondly, with upper terminal 31 and lower terminal 41 respectively injection moulding for first subassembly 3 and the second subassembly 4 of moulding plastics, realize the modularization production equipment, not only can improve production packaging efficiency, reduce numerous and diverse equipment process, can also promote overall structure stability.

The rear end molding of well clamping piece 42 to both sides protrusion in insulator 1 and with metal casing 2 inner wall electrical contact's first resistant current lug 421, the front end molding of well clamping piece 42 to both sides protrusion in insulator 1 is used for the second resistant current lug 422 with plug electrical contact, the middle part molding of well clamping piece 42 to both sides protrusion in insulator 1 is used for the third resistant current lug 423 with plug electrical contact, just the anterior both sides of well clamping piece 42 stretch out outside insulator 1. By arranging the first current-proof bump 421 and the second current-proof bump 422 protruding from the insulation body 1 on the two sides of the rear end and the two sides of the front end of the middle clip 42, respectively, after the assembly is completed, the first current-proof bump 421 contacts with the inner wall of the metal shell 2, and the second current-proof bump 422 contacts with the plug after the plug is inserted, so as to improve the current resistance.

The lower terminal 41 is located on the lower end surface of the third plastic part 43, the middle clamping piece 42 is located on the upper end surface of the third plastic part 43, and a plurality of first through holes 424 for enhancing the connection stability with the third plastic part 43 are formed in the middle clamping piece 42; a plurality of first positioning grooves 431 distributed at intervals and used for positioning the upper terminal 31 are formed in the rear end portion of the upper end surface of the third plastic part 43, a supporting boss 432 used for separating the middle clamping piece 42 from the upper terminal 31 is formed in the middle of the upper end surface of the third plastic part 43, a plurality of second positioning grooves 433 distributed at intervals and used for positioning the upper terminal 31 are formed in the supporting boss 432, and a plurality of supporting lugs 434 used for separating the upper terminal 31 are formed in the front end portion of the upper end surface of the third plastic part 43.

The first contact head 311 at the front end of the upper terminal 31 and the second contact head 411 at the front end of the lower terminal 41 are arranged symmetrically in a duckbill shape at the front end of the third plastic part 43 and are embedded into the first plastic part 5, the first pin part 312 at the rear end of the upper terminal 31 and the second pin part 412 at the rear end of the lower terminal 41 are arranged in a linear interval manner and extend out of the first plastic part 5 from the rear end of the third plastic part 43, and the first conductive part 313 in the middle of the upper terminal 31 and the second conductive part 413 in the middle of the lower terminal 41 respectively protrude out of the upper end surface and the lower end surface of the first plastic part 5. The first contact head 311 at the front end of the upper terminal 31 and the second contact head 411 at the front end of the lower terminal 41 are arranged to be in a duckbill shape and embedded into the first plastic part 5, so that the bonding strength between the upper terminal 31 and the first plastic part 5 and the bonding strength between the lower terminal 41 and the first plastic part 5 are excellent, and the terminals can be prevented from being inserted and rolled up by the force generated when a plug is inserted.

The front part of the upper end face of the metal shell 2 is provided with two first contact elastic sheets 21 which are bent inwards in parallel, and the middle part of the lower end face of the metal shell 2 is provided with two first contact convex hulls 22 which are protruded inwards in parallel; two sides of the lower end face of the metal shell 2 are provided with four welding pins 23 in matrix distribution in a bending mode, and the four welding pins 23 are all plated with soldering tin layers. The adoption sets up the bellied first contact shell fragment 21 of cavity and first contact convex closure 22 in the front and the bottom surface of metal casing 2 for can be inseparabler with this metal casing 2 contact after the plug inserts, thereby promote the product current resistance.

The rear portion of the upper end face of the metal shell 2 is provided with two first stop bosses 24 which are protruded in parallel and inward punching and used for stopping the insertion depth of the plug, the rear portion of the lower end face of the metal shell 2 is provided with two second stop bosses 25 which are protruded in parallel and inward punching and used for stopping the insertion depth of the plug, and the rear end of each first stop boss 24 is provided with two first clamping elastic pieces 26 which are symmetrically bent inward and used for tightly clamping and fixing the insulation body 1 in the metal shell 2. The adoption sets up respectively at metal casing 2's up end and terminal surface and ends a boss 24 and a second and end a boss 25 to inside bellied first, installs insulator 1 back in metal casing 2, through buckling first screens shell fragment 26 with insulator 1 clamp tightly fix in metal casing 2, strengthen the stability that insulator 1 and metal casing 2 are connected, improve overall structure intensity.

The insulation body 1 comprises a tongue plate part 11 and a base part 12 formed with the rear end of the tongue plate part 11, the base part 12 is clamped between the first stop boss 24 and the first clamping elastic sheet 26, a first clamping groove 121 and a second clamping groove 122 which are respectively clamped with the first stop boss 24 and the first clamping elastic sheet 26 are formed on the front side and the rear side of the upper end of the base part 12, and a third clamping groove 123 which is clamped with the second stop boss 25 is formed on the front side of the lower end of the base part 12; two positioning bosses 124 are provided in parallel at the lower end of the base portion 12 and penetrate the lower end surface of the metal case 2, and the front portions of the upper terminal 31 and the lower terminal 41 are located at the upper and lower sides of the tongue plate portion 11. The first stop boss 24 and the second stop boss 25 protrude out of the front end face of the base portion 12 to stop the plug insertion depth and prevent the plug from directly abutting against plastic to damage a product.

To sum up, during the production of the present invention, first, the first injection molding assembly 3 is formed by the upper terminal 31 and the second plastic part 32 through the mode of in-mold injection molding, and simultaneously, the second injection molding assembly 4 is formed by the lower terminal 41 and the middle clamping piece 42 and the third plastic part 33 through the mode of in-mold injection molding, and then the first injection molding assembly 3 and the second injection molding assembly 4 are formed by the first plastic part 5 through the mode of in-mold injection molding, and finally, the insulation body 1 is assembled in the metal shell 2, and the insulation body 1 is fixed in the metal shell 2 by the first clamping elastic piece 26 which is bent through punching. The upper terminal 31, the lower terminal 41 and the middle clamping piece 42 are integrally formed into the insulation body 1 by adopting a three-time in-mold injection molding mode, and the insulation body 1 formed by the mode has the advantages of excellent overall strength and structural advantages of being capable of passing various destructive tests. Secondly, adopt the mode of cubic in-mold injection to become insulator 1 with upper terminal 31 and lower terminal 41 and well clamping piece 42 integrated into one piece for the part is few when insulator 1 assembles with metal casing 2, and the assembly is simple quick, and the post-assembly structure is more stable, and bulk strength is stronger.

It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. A SMT onboard USB TYPE-C connector, comprising: the insulation structure comprises an insulation body (1) and a metal shell (2) sleeved on the insulation body (1), and is characterized in that the insulation body (1) comprises a first injection molding assembly (3), a second injection molding assembly (4) and a first plastic part (5) for connecting the first injection molding assembly (3) and the second injection molding assembly (4), and the first injection molding assembly (3), the second injection molding assembly (4) and the first plastic part (5) are molded into a whole through in-mold injection molding; first subassembly (3) of moulding plastics including a plurality of interval arrangement last terminal (31) and through moulding plastics in the mould with a plurality of go up terminal (31) and fix a whole second plastic part (32), the second is moulded plastics subassembly (4) and is moulded plastics a plurality of including a plurality of interval arrangement lower terminal (41), well clamping piece (42) and through moulding plastics in the mould with a plurality of lower terminal (41) with well clamping piece (42) are fixed to become a whole and spaced third plastic part (43), just well clamping piece (42) are located go up terminal (31) with between lower terminal (41).

2. An SMT board TYPE USB TYPE-C connector according to claim 1, wherein: the rear end shaping of well clamping piece (42) to both sides protrusion in insulator (1) and with metal casing (2) inner wall electrical contact's first resistant electric current lug (421), the front end shaping of well clamping piece (42) to both sides protrusion in insulator (1) and be used for with plug electrical contact's second resistant electric current lug (422), the middle part shaping of well clamping piece (42) to both sides protrusion in insulator (1) and be used for with plug electrical contact's third resistant electric current lug (423), just well clamping piece (42) anterior both sides stretch out in insulator (1) is outer.

3. An SMT board TYPE USB TYPE-C connector according to claim 2, wherein: the lower terminal (41) is located on the lower end face of the third plastic part (43), the middle clamping piece (42) is located on the upper end face of the third plastic part (43), and a plurality of first through holes (424) used for enhancing the connection stability with the third plastic part (43) are formed in the middle clamping piece (42); the rear end of the upper end face of the third plastic part (43) is provided with a plurality of spaced distribution and is used for positioning a first positioning groove (431) of the upper terminal (31), the middle of the upper end face of the third plastic part (43) is formed with a supporting boss (432) used for separating the middle clamping piece (42) from the upper terminal (31), the supporting boss (432) is provided with a plurality of spaced distribution and is used for aligning a second positioning groove (433) used for positioning the upper terminal (31), and the front end of the upper end face of the third plastic part (43) is formed with a plurality of supporting bosses (434) used for spaced distribution and is used for the upper terminal (31).

4. An SMT board TYPE USB TYPE-C connector according to claim 3, wherein: first contact head portion (311) of last terminal (31) front end with second contact head portion (411) of terminal (41) front end down is duckbilled form symmetry set up in third plastic part (43) front end and is buried in first plastic part (5), first pin portion (312) of last terminal (31) rear end with second pin portion (412) of terminal (41) rear end down be linear interval arrangement with third plastic part (43) rear end and stretch out in outside first plastic part (5), first conductive part (313) in the middle of last terminal (31) with second conductive part (413) in the middle of terminal (41) bulge respectively in the upper and lower terminal surface of first plastic part (5).

5. An SMT board TYPE USB TYPE-C connector according to any one of claims 1-4, wherein: the front part of the upper end face of the metal shell (2) is provided with two first contact elastic sheets (21) which are bent inwards in parallel, and the middle part of the lower end face of the metal shell (2) is provided with two first contact convex hulls (22) which are protruded inwards in parallel; two sides of the lower end face () of the metal shell (2) are bent and provided with four welding pins (23) which are distributed in a matrix manner, and the four welding pins (23) are all plated with soldering tin layers.

6. An SMT board TYPE USB TYPE-C connector according to claim 5, wherein: the rear portion of the upper end face of the metal shell (2) is provided with two first stop bosses (24) which are protruded in parallel and inward punching and used for stopping the plug insertion depth, the rear portion of the lower end face of the metal shell (2) is provided with two second stop bosses (25) which are protruded in parallel and inward punching and used for stopping the plug insertion depth, and the rear end of each first stop boss (24) is provided with two first clamping elastic pieces (26) which are symmetrically bent inwards and used for clamping and fixing the insulation body (1) in the metal shell (2).

7. An SMT board TYPE USB TYPE-C connector according to claim 6, wherein: the insulation body (1) comprises a tongue plate part (11) and a base part (12) formed with the rear end of the tongue plate part (11), the base part (12) is clamped between the first stop boss (24) and the first clamping elastic sheet (26), a first clamping groove (121) and a second clamping groove (122) which are correspondingly clamped with the first stop boss (24) and the first clamping elastic sheet (26) respectively are formed on the front side and the rear side of the upper end of the base part (12), and a third clamping groove (123) which is correspondingly clamped with the second stop boss (25) is formed on the front side of the lower end of the base part (12); two positioning convex columns (124) penetrating through the lower end face of the metal shell (2) are arranged at the lower end of the base part (12) in parallel, and the front parts of the upper terminal (31) and the lower terminal (41) are positioned at the upper side and the lower side of the tongue plate part (11).