Accompanying drawing explanation
Fig. 1 is the three-dimensional combination figure of the positive anti-plug USB plug of the application;
Fig. 2 is the partial exploded view that the positive anti-plug USB plug of the application removes the second metal shell;
Fig. 3 is the three-dimensional exploded view that the positive anti-plug USB plug of the application removes the second metal shell;
Fig. 4 is the stereogram of the insulating body of the positive anti-plug USB plug of the application;
Fig. 5 is another angle stereogram of the insulating body of the positive anti-plug USB plug of the application;
Fig. 6 is the cutaway view along the dotted line of A-A shown in Fig. 4;
Fig. 7 is the stereogram of the terminal group of the positive anti-plug USB plug of the application;
Fig. 8 is the stereogram of another angle of the terminal group of the positive anti-plug USB plug of the application;
Fig. 9 is the stereogram of the metal button member of the positive anti-plug USB plug of the application;
Figure 10 is the stereogram of the metal retainer of the positive anti-plug USB plug of the application;
Figure 11 is the stereogram of another angle of the metal retainer of the positive anti-plug USB plug of the application;
Figure 12 is the stereogram after the insulating body installation end subgroup of the positive anti-plug USB plug of the application, metal button member;
Figure 13 is another angle stereogram after the insulating body installation end subgroup of the positive anti-plug USB plug of the application, metal button member;
Figure 14 is the stereogram after the insulating body installation end subgroup of the positive anti-plug USB plug of the application, metal button member and metal retainer;
Figure 15 is for the application is along the cutaway view of the dotted line of B-B shown in Figure 14;
Figure 16 is the separation graph of the second metal shell of the positive anti-plug USB plug of the application.
Embodiment
The positive anti-plug USB plug of the application is USB3.1 Type C type pin connector, and USB3.1 Type C is that the one formulated by USB-IF association is intended to reduce product size to meet handheld mobile device demand, and can the new interface of simultaneously significantly promoting transmission rate.
Refer to shown in Fig. 1 to Fig. 3, the application's positive anti-plug USB plug comprises insulating body 20, is installed on two terminal group 40 of described insulating body about 20 both sides respectively, is plugged in the metal button member 50 of described insulating body 20 both lateral sides from the side, is installed on the metal retainer 30 of described insulating body about 20 both sides, is held on described insulating body 20 afterbody with the circuit board 13 being electrically connected described two terminal group 40 and the metal shell 10 be sheathed on outside described insulating body 20.
Described circuit board 13 comprises and is positioned at two of upper and lower both sides, end and arranges the golden finger 131 welded with described two terminal group 40 and the positioning convex portion 132 being formed at described end front-end edge so that described circuit board 13 accurately inserts and locates.
Described metal shell 10 comprises the first metal-back 11 and is sheathed on the second metal-back 12 outside described first metal-back 11 rear end.The rear end surface of described first metal-back 11 forms the hangnail 112 that oblique back upper place extends and the projection 113 being formed at described hangnail 112 rear end through punching press.Described second metal-back 12 comprises the less sleeved part 122 being sheathed on described first metal-back 11 rear end and the larger extension 121 integrally extended back with described sleeved part 122, projection 113 position of corresponding described first metal-back 11 of described sleeved part 122 is formed with the pore structure 123 snapped in for described projection 113, and the front-end edge of described sleeved part 122 is also provided with the notch part 124 of the hangnail 112 coordinating described first metal-back 11.After described second metal-back 12 is inserted in described first metal-back 11 from front to back, the hangnail 112 of described first metal-back 11, projection 113 are positioned in the notch part 124 of the front-end edge of described second metal-back 12, pore structure 123 respectively.So, can spacing described second metal-back 12, the second metal-back 12 is combined as a whole with described first metal-back 11.
Refer to shown in Fig. 4-6, described insulating body 20 comprises docking head 21 and the afterbody 22 of formation that extends back from described docking head 21.Described docking head 21 comprise docking chamber 211 that hollow formed, be opened in described docking chamber 211 roof up and down 25 on and at the through some terminal grooves 212 of above-below direction and the some through slots 214 being located at described terminal groove 212 front end.The front-end edge of described some terminal grooves 212 is respectively equipped with pre-splenium 213 and keeps flatness consistency to make the terminal ends of terminal group 40 abut.Also be provided with stop section 216 between described some through slots 214, described through slot 214 up/down perforation is communicated with described docking chamber 211, and described stop section 216 bottom lock is not communicated with described docking chamber 211.The both lateral sides of the terminal groove 212 of described docking head 21 is also provided with hole clipping 215.The afterbody 22 of described insulating body 20 be included in that upper and lower end face is recessed to form for install described terminal group 40 installation portion 225, the container cavity 221 formed in the cannelure 23 formed near described docking head 21 side, described afterbody 22 hollow, be opened in the location structure 224 on described installation portion 225 and extend back from described afterbody 22 both lateral sides and form hold assembly 222.The surface of described installation portion 225 and described terminal groove 212 are roughly concordant near described bottom surface of docking chamber 211.Described location structure 224 is specially a kind of location hole structure.The clamping part 223 of the described circuit board 13 of clamping is formed in the middle of described hold assembly 222.The both lateral sides wall 26 of described insulating body 20 also comprises and to offer from described afterbody 22 and to extend to the mounting groove 261 for installing described metal button member 50 of described docking head 21, described mounting groove 261 is communicated with described docking chamber 211 at described docking head 21.
Refer to shown in Fig. 7, Fig. 8, described terminal group 40 comprises some plastic bodies 41 being installed on the conducting terminal 42 in described terminal groove 211 and being integrated by described some conducting terminal 42 fixings.Described conducting terminal 42 comprises holding parts 421, the weld part 422 extended to form respectively from described holding parts 421 two ends and contact arm 423, described contact arm 423 is formed with the bending part 424 towards described docking chamber 211, and described bending part 424 is as the contact site be electrically connected with butt-joint socket connector.Described plastic body 41 comprises main part 411, from the hook part 412 that both sides, described main part 411 front end extend to form downwards, the first location division 414 for locating described circuit board 13 is offered towards the bottom surface of described insulating body 20 side at described main part 411, at the positioning element 413 of the location structure 224 for coordinating described insulating body 20 that described main part 411 is formed towards described insulating body 20 side, and the projection 415 to arrange on the contact arm 423 side end face of described conducting terminal 42 at described main part 411.Described positioning element 413 is specially the reference column of the described location hole 224 of a cooperation.
Refer to shown in Fig. 9, described metal button member 50 comprise the shielding part 51 inserted from the afterbody 22 of described insulating body 20 in described container cavity 221, be formed at described shielding part 51 rear end for locate described circuit board 13 the second location division 55, extend to form after described shielding part 51 both sides bending be installed on elastic arm 52 in described mounting groove 261, be formed at described elastic arm 52 front end and enter supporting end 53 and being formed at the clamping part 54 for clamping described circuit board 13 of described elastic arm 52 rear end of described docking chamber 211 both lateral sides.Described shielding part 51 and described elastic arm 52 Integral design, be conducive to elastic arm 52 described in stable fixing, also the installation of described elastic arm 52 is convenient to, simultaneously, make signal between two row's terminal group 40 of described insulating body about 20 both sides produce interference in the container cavity 221 that described shielding part 51 inserts described afterbody 22, play shielding action.The container cavity 221 that described insulating body 20 afterbody is formed large area collecting can fix described shielding part 51, and described metal button member 50 resistance to overturning is strengthened.Two the first location divisions 414 and second location division 55 of described metal button member 50 rear end of plastic body 41 rear end of described two terminal group 40 form the location notch of the positioning convex portion 132 of accommodating described circuit board 13, to make clamping between the accurate conducting terminal 42 inserting described two terminal group 40 of described circuit board 13, make the golden finger 131 that described conducting terminal 42 is corresponding with on described circuit board 13 in electrical contact.
Refer to Figure 10, shown in Figure 11, described metal retainer 30 comprises frame section 31, be located at the empty avoiding portion 32 in the middle of described frame section 31, the contact flat spring 33 extended to form from described frame section 31 front end bending and retaining piece 37, be formed at the trepanning 34 on the projection 415 being sheathed on the plastic body 41 of described terminal group 40 of described frame section 31 rear end, the snap fit 36 of fixing in the hole clipping 215 that the bending of described frame section 31 both lateral sides extends into described insulating body 20, and frame section 31 edge tilt inside described empty avoiding portion 32 upwards extends to form some grounding elastic parts 35 for described first metal-back 11 in electrical contact.The empty avoiding portion 32 of described metal retainer 30 corresponds to above the terminal groove 212 of described insulating body 20, and described frame section 31 is covered with insulating barrier 38 and contacts described metal retainer 30 to prevent described conducting terminal 42 from upwarping when docking with socket in the below in region, empty avoiding portion 32.Described contact flat spring 33 is entered in described docking chamber 211 by the through slot 214 of described insulating body 20 front-end edge and provides to contact with the metal shell (not shown) of described butt-joint socket the power of holding, and the stop section 216 between described through slot 214 thinks that described contact flat spring 33 provides stronger elastic force to 37 blocks of the retaining piece between described contact flat spring 33.
Refer to shown in Fig. 1 to Figure 16, will the manufacture method of the positive anti-plug USB plug of the application be introduced below:
Step one, injection mo(u)lding forms described insulating body 20, punching press forms described metal button member 50, described metal button member 50 is inserted from the rear of described insulating body 20 mounting groove 261 being positioned at described insulating body 20 both lateral sides, now, the shielding part 51 of described metal button member 50 fits in the container cavity 221 of the afterbody 22 of described insulating body 20, described elastic arm 52 is contained in described mounting groove 261, described elastic arm 52 end supports the both lateral sides that end 53 enters the docking chamber 211 of the docking head 21 of described insulating body 20 by described mounting groove 261 front end and contacts to support with the metal shell of butt connector,
Step 2, two groups of conducting terminals 42 are carried out injection mo(u)lding form two terminal group 40, described two terminal group 40 in the vertical directions are loaded respectively described installation portion 225 from the upper and lower both sides of described insulating body 20 with in terminal groove 212.The plastic body 41 of described terminal group 40 is installed in the installation portion 225 of the afterbody 22 of described insulating body 20, simultaneously, first the reference column 413 of described plastic body 41 bottom surface locates in the location hole 224 on described installation portion 225, described terminal group 40 is positioned, thus, some conducting terminals 42 of described terminal group 40 can be made to locate smoothly and enter in corresponding terminal groove 212.Cannelure 23 both sides that the hook part 412 of plastic body 41 both sides of described terminal group 40 snaps in described afterbody 22 come off to prevent described terminal group 40;
Step 3, two metal retainers 30 described in punch forming, insulating barrier 38 is pasted towards insulating body 20 side in the empty avoiding portion 32 of described metal retainer 30, again described metal retainer 30 is installed on the both sides of described insulating body 20, elastic arm 423 position of the corresponding described conducting terminal 42 in empty avoiding portion 32 of described metal retainer 30, the contact flat spring 33 of frame section 31 front-end edge of described metal retainer 30 enters front end, described docking chamber 211 through the through slot 214 of described insulating body 20 front end, described retaining piece 37 is obtained higher elastic force by stop section 216 block between described through slot 214 to make the contact flat spring 33 of described retaining piece 37 periphery, also described contact flat spring 37 can be avoided to be inserted bad because accepting excessively by butt connector.The trepanning 34 of described frame section 31 rear end is inserted in the projection 415 on the plastic body 41 of described terminal group 40, the snap fit 36 of described frame section 31 both sides holds in the hole clipping 215 of described insulating body 20 both sides, makes described metal retainer 30 firmly be immobilizated in described insulating body 20 and terminal group 40 by described trepanning 34, snap fit 36 with the fixing of corresponding assembly;
Step 4, be inserted in from the rear of described insulating body 20 by described first metal-back 11, the grounding elastic part 35 inside the empty avoiding portion 32 of described metal retainer 30 contacts described first metal-back 11;
Step 5, described circuit board 30 is inserted described two terminal group 40 from described insulating body 20 rear end the leg 422 of two groups of conducting terminals 42 between, wherein, in the location notch that the first location division 414 that the positioning convex portion 132 of described circuit board 13 front end is positioned the plastic body 41 of described terminal group 40 and the second location division 55 of described metal button member 50 are formed, make the leg 422 of the conducting terminal 42 of the golden finger 131 accurately contact correspondence of described circuit board 13 front end;
Step 6, described second metal-back 12 is inserted in outside described first metal-back 11 from described insulating body 20 front end, the less sleeved part 122 in described second metal-back 12 front end is positioned the rear end of described first metal-back 11, the projection 113 of described first metal-back 11 end edge snaps in the pore structure 123 of described second metal-back 12, the hangnail 112 of described first metal-back 11 blocks the notch part 124 of the front-end edge of described second metal-back 12, thus, described second metal-back 12 is positioned described first metal-back 11 rear end.
The application's positive anti-plug USB plug offers the some terminal grooves 212 being communicated with described docking chamber 211 in the both sides up and down of described insulating body 20, and the installation portion 225 for installing the plastic body 41 holding described terminal group 40 is set at the afterbody of described insulating body 20, be convenient to make described terminal group 40 load in described insulating body 20 at vertical direction in an assembling process, avoid terminal group 40 in prior art to insert the defect easily damaging conducting terminal 42 from described insulating body 20 rear end at longitudinal direction.
Afterbody 22 hollow of the insulating body of the application's positive anti-plug USB plug is formed with the container cavity 221 of the shielding part 51 of the directly described metal button member 50 of collecting, described metal button member 50 is made directly to be immobilizated in described insulating body 20, avoid in prior art, the structure caused in the plastic body that metal button member is immobilizated in described terminal group built on the sand.