CN105024230B - Positive anti-plug USB plug - Google Patents

Positive anti-plug USB plug Download PDF

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Publication number
CN105024230B
CN105024230B CN201510426989.7A CN201510426989A CN105024230B CN 105024230 B CN105024230 B CN 105024230B CN 201510426989 A CN201510426989 A CN 201510426989A CN 105024230 B CN105024230 B CN 105024230B
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China
Prior art keywords
insulating body
metal
terminal
plug
docking
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Application number
CN201510426989.7A
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Chinese (zh)
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CN105024230A (en
Inventor
李鹏
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Shenzhen Everwin Precision Technology Co Ltd
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Shenzhen Everwin Precision Technology Co Ltd
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Priority to CN201510426989.7A priority Critical patent/CN105024230B/en
Publication of CN105024230A publication Critical patent/CN105024230A/en
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Abstract

A kind of positive anti-plug USB plug, including insulating body, it is respectively arranged in two terminal groups of both sides above and below the insulating body, it is plugged in the metal button member of the insulating body both lateral sides, the metal retainer being installed on the outside of described two terminal groups, and it is sheathed on the metal shell outside the insulating body, the insulating body includes docking head, and the afterbody extended rearwardly to form from the docking head, the docking head includes the docking chamber of hollow formation, penetrate some terminal grooves of the roof up and down of the docking chamber, the afterbody includes the installation portion that depression is formed, the terminal group in the vertical direction is installed from the both sides up and down of the insulating body;The application, which can effectively solve terminal group fixing metal button member in the prior art, causes unsteady defect.

Description

Positive anti-plug USB plug
Technical field
The application is related to electric connector field, espespecially a kind of positive anti-plug USB plug.
Background technology
For USB (USB) universally present in daily life, the transmission of electronic device data is most Using this general standard;The appearance of USB3.0 standards drastically increases the transmission speed of data, in standard A Type classes In the USB interface design of type, USB3.0 can ideally realize change in design without influenceing downward compatibility and constructional appearance.But It is while can not then realizing function upgrading in the Micro USB fields of mobile terminal application, to ensure that constructional appearance is constant, The standards of Micro USB 3.0 finally complicate surface structure, that is, use mode side by side to add an interface to accommodate increasing The function leg added, but bigger space is occupied, it is limited to the development trend of smart mobile phone ultrathin, Micro USB3.0 is existed Application on mobile phone is greatly limited, and is badly in need of a kind of brand-new high speed serialization versabus to solve this problem.
In the case, USB associations are proposed brand-new USB3.1Type c-types interface connector, at the same taken into account size with Performance, the application on intelligent terminal is adapted to, but it can not be backward compatible.The People's Republic of China (PRC) the 201410661805.0th Patent discloses a kind of USB3.1Type C components, and its plug connector includes insulating body, is installed in the insulating body Two rows terminal group, be installed on the insulating body both lateral sides metal button member, the gold being sheathed on outside the insulating body Belong to shell.The metal button member includes extending the elastic arm to be formed, the gold positioned at middle shielding part, from the shielding part both sides The fixing of category fastener is fixed by the plastic body of upper and lower two terminal groups, and described two terminal groups and the insulating body Cooperation holding structure only pass through the docking intracavitary that the terminal group is inserted on rear side of the insulating body to the insulating body It is fixed, the plastic body of the terminal group is largely still located at the rear end of the insulating body, and fixing effect is not ideal enough, institute Metal button member is stated easily to go out because the stability of the terminal group loosens.
The content of the invention
The purpose of the application is to provide a kind of positive anti-plug USB plug of support, the metal button member stability of the USB plug More preferably.
Therefore, this application provides a kind of positive anti-plug USB plug, including insulating body, be respectively arranged in the insulation this Two terminal groups of the upper and lower both sides of body, it is plugged in the metal button member of the insulating body both lateral sides, is installed on described two ends Metal retainer on the outside of subgroup, positioned at the insulating body rear end it is used to connect the circuit board of the terminal group and is sheathed on Metal shell outside the insulating body, the insulating body include docking head and extended back shape from the docking head Into afterbody, the docking head includes the docking chamber of hollow formation, and the afterbody is hollow formed with accommodating chamber, the insulation The docking intracavitary for also including the docking head is opened up and extended to from the afterbody on the both lateral sides wall of body is used to install The mounting groove of the metal button member, the metal button member include being inserted and fixed in the receiving from the afterbody of the insulating body The shielding part of intracavitary, the elastic arm being installed in the mounting groove that extension is formed from after the bending of the shielding part both sides, formed End is supported in the elastic arm front end and into the docking chamber both lateral sides.
Compared to prior art, the afterbody of the insulating body of the positive anti-plug USB plug of the application is hollow formed with directly collecting The accommodating chamber of the shielding part of the metal button member, the metal button member is directly immobilizated in the insulating body, avoid existing Have in technology, structure is built on the sand caused by metal button member is immobilizated in the plastic body of the terminal group.
Brief description of the drawings
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 sectional view along A-A dotted lines 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 that another angle after the insulating body installation end subgroup of the positive anti-plug USB plug of the application, metal button member is stood Body figure;
After Figure 14 is the insulating body installation end subgroup of the positive anti-plug USB plug of the application, metal button member and metal retainer Stereogram;
Figure 15 is the sectional view of B-B dotted lines shown in the application along Figure 14;
Figure 16 is the separation figure 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 USB3.1Type c-type plug connectors, and USB3.1Type C are by USB-IF One kind that association formulates is intended to reduce product size to meet handheld mobile device demand, and transmission rate can be substantially improved simultaneously New interface.
Refer to shown in Fig. 1 to Fig. 3, the positive anti-plug USB plug of the application include insulating body 20, be respectively arranged in it is described absolutely Edge body two terminal groups 40 of both sides about 20, the metal button member for being plugged in from side the both lateral sides of insulating body 20 50th, it is installed on the metal retainer 30 of insulating body both sides about 20, is held on the afterbody of insulating body 20 with electrical Connect the circuit board 13 of described two terminal groups 40 and the metal shell 10 being sheathed on outside the insulating body 20.
The circuit board 13 is included positioned at the end golden finger that two rows of both sides weld with described two terminal groups 40 up and down 131 and the positioning convex portion 132 of the end front-end edge is formed in order to which the circuit board 13 is properly inserted and is positioned.
The metal shell 10 includes the first metal-back 11 and be sheathed on the outside of the rear end of the first metal-back 11 second Metal-back 12.The rear end surface of first metal-back 11 is by being stamped and formed out the hangnail 112 of oblique back upper place extension and being formed Projection 113 in the rear end of hangnail 112.Second metal-back 12 include be sheathed on the rear end of the first metal-back 11 compared with Small sleeved part 122 and the larger extension 121 integrally to be extended back with the sleeved part 122, the sleeved part 122 are right The position of projection 113 of first metal-back 11 is answered formed with the pore structure 123 being caught in for the projection 113, the sleeved part 122 front-end edge is additionally provided with the notch part 124 for the hangnail 112 for coordinating first metal-back 11.When second metal-back 12 After being inserted in first metal-back 11 from front to back, the hangnail 112 of first metal-back 11, projection 113 are positioned in institute respectively State the notch part 124 of the front-end edge of the second metal-back 12, in pore structure 123.In this way, can with spacing second metal-back 12, The second metal-back 12 is set to be combined as a whole with first metal-back 11.
Refer to shown in Fig. 4-6, the insulating body 20 includes docking head 21 and docks head 21 backward from described Extend the afterbody 22 formed.The docking head 21 includes the docking chamber 211 of hollow formation, is opened in the docking chamber 211 Some terminal grooves 212 penetrated up and down on roof 25 and in above-below direction and some insertions located at the front end of terminal groove 212 Groove 214.The front-end edge of some terminal grooves 212 is respectively equipped with pre- splenium 213 so that the terminal ends of terminal group 40 are abutted and protected Hold flatness uniformity.Stop section 216, the up/down perforation of through slot 214 and institute are additionally provided between some through slots 214 State docking chamber 211 to connect, the bottom lock of stop section 216 does not connect with the docking chamber 211.The end on the docking head 21 The both lateral sides of pilot trench 212 are additionally provided with hole clipping 215.The afterbody 22 of the insulating body 20 is included in upper and lower top surface and is recessed what is formed For installing the installation portion 225 of the terminal group 40, in annular groove 23, the tail formed close to the docking side of head 21 The accommodating chamber 221 of 22 hollow formation of portion, the location structure 224 being opened on the installation portion 225 and from the afterbody 22 laterally Both sides extend rearwardly to form hold assembly 222.Chamber is docked close to described in the surface of the installation portion 225 with the terminal groove 212 211 bottom surface is substantially concordant.The location structure 224 is specially a kind of positioning pore structure.Formed among the hold assembly 222 Clamp the clamping part 223 of the circuit board 13.Also include from the afterbody 22 on the both lateral sides wall 26 of the insulating body 20 Open up and extend to the mounting groove 261 for being used to install the metal button member 50 on the docking head 21, the mounting groove 261 exists The docking head 21 connects with the docking chamber 211.
Refer to shown in Fig. 7, Fig. 8, the terminal group 40 includes some conducting terminals being installed in the terminal groove 211 42 and some conducting terminals 42 are held to the plastic body 41 being integrated.The conducting terminal 42 include holding parts 421, from The both ends of holding parts 421 each extend over the weld part 422 and contact arm 423 to be formed, and the contact arm 423 is formed with direction The bending part 424 of the docking chamber 211, the bending part 424 is as the contact site being electrically connected with butt-joint socket connector.Institute State plastic body 41 include main part 411, be downwardly extending from the front end both sides of main part 411 hook part 412, described Main part 411 offers the first location division for positioning the circuit board 13 towards the bottom surface of the side of insulating body 20 414th, the positioning knot for being used to coordinate the insulating body 20 formed in the main part 411 towards the side of insulating body 20 The positioning element 413 of structure 224 and set on contact arm 423 side top surface of the main part 411 close to the conducting terminal 42 The projection 415 put.The positioning element 413 is specially a locating dowel for coordinating the location structure 224.
Refer to shown in Fig. 9, the metal button member 50 includes inserting the receiving from the afterbody 22 of the insulating body 20 Shielding part 51 in chamber 221, the second location division 55 for being used to position the circuit board 13 for being formed at the rear end of shielding part 51, Extension is formed from after the both sides bending of shielding part 51 the elastic arm 52 being installed in the mounting groove 261, be formed at it is described The front end of elastic arm 52 simultaneously enters supporting end 53 and being formed at the rear end of elastic arm 52 for the docking both lateral sides of chamber 211 Be used for clamp the clamping part 54 of the circuit board 13.The shielding part 51 and the Integral design of elastic arm 52, be advantageous to steady Surely the elastic arm 52 is held, also allows for the installation of the elastic arm 52, meanwhile, the shielding part 51 inserts the afterbody 22 Make positioned at the insulating body that signal will not produce interference between two row's terminal groups 40 of both sides about 20 in accommodating chamber 221, To shielding action.The accommodating chamber 221 that the afterbody of insulating body 20 is formed can large area house the fixed shielding part 51, make The resistance to overturning of metal button member 50 enhancing.Two the first location divisions of the rear end of plastic body 41 of described two terminal groups 40 414 form the positioning for the positioning convex portion 132 for housing the circuit board 13 with the second location division 55 of the rear end of metal button member 50 Groove, so that the circuit board 13 clamps between being properly inserted the conducting terminal 42 of described two terminal groups 40, make the conducting end Sub 42 golden fingers 131 corresponding with the circuit board 13 are in electrical contact.
Refer to shown in Figure 10, Figure 11, the metal retainer 30 includes frame section 31, among the frame section 31 Empty avoiding portion 32, extend from the front end bending of frame section 31 contact flat spring 33 to be formed and retaining piece 37, be formed at the frame It is sets of holes 34 on the projection 415 of the plastic body 41 for being sheathed on the terminal group 40 of the rear end of frame portion 31, horizontal from the frame section 31 The snap fit 36 that holds is extended into the hole clipping 215 of the insulating body 20 to both sides bending and from the inner side of empty avoiding portion 32 The edge tilt of frame section 31 upwardly extends to form some grounding elastic parts 35 for first metal-back 11 in electrical contact.It is described The empty avoiding portion 32 of metal retainer 30 corresponds to the top of terminal groove 212 of the insulating body 20, and the frame section 31 is in empty avoiding Insulating barrier 38 is covered with below the region of portion 32 and contacts the gold to prevent the conducting terminal 42 from being upwarped when being docked with socket Belong to retaining piece 30.The contact flat spring 33 enters the docking chamber 211 by the through slot 214 of the front-end edge of insulating body 20 The interior metal shell (not shown) with the butt-joint socket, which contacts, provides clamping power, the gear between the contact flat spring 33 Limited step 37 for the contact flat spring 33 then on stop section 216 of the block between the through slot 214 to provide stronger elasticity Power.
Refer to shown in Fig. 1 to Figure 16, the manufacture method of the positive anti-plug USB plug of the application described below:
Step 1: injection molding forms the insulating body 20, the metal button member 50 is stamped and formed out, by the buckle From the rear of the insulating body 20, insertion is located in the mounting groove 261 of the both lateral sides of insulating body 20 part 50, now, institute In the accommodating chamber 221 for the afterbody 22 that the shielding part 51 for stating metal button member 50 accommodates the insulating body 20, the elastic arm 52 It is contained in the mounting groove 261, the end of elastic arm 52 supports end 53 and passed through described in the entrance of the front end of mounting groove 261 The both lateral sides of the docking chamber 211 on the docking head 21 of insulating body 20 are supported with the metal shell with butt connector to be contacted;
Step 2: two groups of conducting terminals 42 are carried out into injection molding forms two terminal groups 40, by described two terminal groups 40 in the vertical directions load in the installation portion 225 and terminal groove 212 from the upper and lower both sides of the insulating body 20 respectively. The plastic body 41 of the terminal group 40 is installed in the installation portion 225 of the afterbody 22 of the insulating body 20, meanwhile, the plastic cement The locating dowel 413 of the bottom surface of body 41 positions in the location structure 224 on the installation portion 225 first, and the terminal group 40 is entered Row positioning, thus, some conducting terminals 42 of the terminal group 40 can be made smoothly to position and in terminal groove 212 corresponding to entering. The hook part 412 of the both sides of plastic body 41 of the terminal group 40 is caught in the both sides of annular groove 23 of the afterbody 22 to prevent the end Subgroup 40 comes off;
Step 3: the described two metal retainers 30 of punch forming, in the direction of empty avoiding portion 32 of the metal retainer 30 The side of insulating body 20 pastes insulating barrier 38, then the metal retainer 30 is installed on to the both sides of the insulating body 20, institute The position of elastic arm 423 of the corresponding conducting terminal 42 in empty avoiding portion 32 of metal retainer 30 is stated, the metal retainer 30 The contact flat spring 33 of the front-end edge of frame section 31 enters the docking chamber 211 through the through slot 214 of the front end of insulating body 20 Front end, the retaining piece 37 is by the block of stop section 216 between the through slot 214 so that the contact on the periphery of the retaining piece 37 Shell fragment 33 obtains higher elastic force, can also avoid the contact flat spring 37 from being inserted because accepting excessively by butt connector bad.Institute The sets of holes 34 for stating the rear end of frame section 31 are inserted in projection 415 on the plastic body 41 of the terminal group 40, the both sides of frame section 31 The clamping of snap fit 36 enter in the hole clipping 215 of the both sides of insulating body 20, pass through the sets of holes 34, snap fit 36 and corresponding component Fixing makes the metal retainer 30 firmly be immobilizated in the insulating body 20 and terminal group 40;
Step 4: first metal-back 11 is inserted in from the rear of the insulating body 20, the metal retainer 30 The grounding elastic part 35 of the inner side of empty avoiding portion 32 contact first metal-back 11;
Step 5: the circuit board 30 is led from two groups of the described two terminal groups 40 of the rear end of insulating body 20 insertion Between the leg 422 of electric terminal 42, wherein, the positioning convex portion 132 of the front end of circuit board 13 is positioned at the terminal group 40 In the locating slot that first location division 414 of plastic body 41 and the second location division 55 of the metal button member 50 are formed, make the electricity The leg 422 of conducting terminal 42 corresponding to the accurate contact of the golden finger 131 of the front end of road plate 13;
Step 6: second metal-back 12 is inserted in outside first metal-back 11 from the front end of insulating body 20, The less sleeved part 122 in the front end of second metal-back 12 is positioned at the rear end of first metal-back 11, first metal The projection 113 of the end edge of shell 11 is caught in the pore structure 123 of second metal-back 12, the hangnail of first metal-back 11 112 block the notch part 124 of the front-end edge of second metal-back 12, and thus, second metal-back 12 is positioned at described The rear end of one metal-back 11.
The positive anti-plug USB plug of the application opens up the connection docking chamber 211 in the both sides up and down of the insulating body 20 Some terminal grooves 212, and in the afterbody of the insulating body 20 be provided for that the plastic body 41 for accommodating the terminal group 40 is installed Installation portion 225, be easy to make in an assembling process the terminal group 40 to load in vertical direction in the insulating body 20, avoid Terminal group 40 inserts the defects of being easily damaged conducting terminal 42 in longitudinal direction from the rear end of insulating body 20 in the prior art.
The afterbody 22 of the insulating body of the positive anti-plug USB plug of the application is hollow formed with directly housing the metal button member 50 Shielding part 51 accommodating chamber 221, the metal button member 50 is directly immobilizated in the insulating body 20, avoid existing skill Structure is built on the sand in art, caused by metal button member is immobilizated in the plastic body of the terminal group.

Claims (9)

1. a kind of positive anti-plug USB plug, it is characterised in that including insulating body, be respectively arranged in two above and below the insulating body Two terminal groups of side, it is plugged in the metal button member of the insulating body both lateral sides, is installed on the outside of described two terminal groups Metal retainer, positioned at the insulating body rear end be used for connect the terminal group circuit board and be sheathed on the insulation This external metal shell, the insulating body include docking head and the afterbody extended rearwardly to form from the docking head, The docking head includes the docking chamber of hollow formation, and the afterbody is hollow formed with accommodating chamber, the transverse direction of the insulating body The docking intracavitary for also including the docking head is opened up and extended to from the afterbody on two side for installing the metal The mounting groove of fastener, the metal button member include being inserted and fixed in the screen in the accommodating chamber from the afterbody of the insulating body Cover portion, the elastic arm being installed in the mounting groove that extension is formed from after the bending of the shielding part both sides, be formed at the bullet Property arm front end and enter the docking chamber both lateral sides and support end;
The metal retainer includes frame section, the empty avoiding portion among the frame section, from frame section front end bending Extension formed contact flat spring upwardly extended with retaining piece and from the frame section edge tilt on the inside of the empty avoiding portion to be formed it is some For the grounding elastic part of the metal shell in electrical contact, the empty avoiding portion is covered with insulation towards the insulating body side Layer.
2. positive anti-plug USB plug as claimed in claim 1, it is characterised in that the metal button member is also described including being formed at The clamping part for being used to clamp the circuit board of elastic arm rear end.
3. positive anti-plug USB plug as claimed in claim 1, it is characterised in that the top up and down of the docking chamber of the insulating body Wall is formed through some terminal grooves, and the afterbody includes the installation portion formed from surface indentation, and the terminal group includes some lead Electric terminal and the plastic body for being molded as one some conducting terminals, the conducting terminal include taking shape in the plastic cement Internal holding parts and the contact arm to be formed, leg are each extended over from the holding parts both ends, the terminal group is in vertical direction On installed from the both sides up and down of the insulating body, the contact arm is installed in the terminal groove, and the plastic body is installed on In the installation portion, the contact arm includes the bending part that both sides above and below the docking chamber are charged into from the terminal groove.
4. positive anti-plug USB plug as claimed in claim 3, it is characterised in that on the installation portion of the afterbody of the insulating body Provided with location structure, the plastic body of the terminal group is provided with face of the insulating body side to be positioned in the location structure Positioning element, the positioning element coordinate the location structure so that the contact arm of the conducting terminal of the terminal group is properly inserted In corresponding terminal groove.
5. positive anti-plug USB plug as claimed in claim 4, it is characterised in that the insulating body afterbody periphery is provided with annular Groove, the plastic body of the terminal group correspond to the annular groove integrally extension formed with the hook part being caught in the annular groove to prevent Only the terminal group comes off from the insulating body.
6. positive anti-plug USB plug as claimed in claim 5, it is characterised in that the empty avoiding portion corresponds to the insulating body So that the bending part of the conducting terminal has enough elastic deformation spaces above terminal groove.
7. positive anti-plug USB plug as claimed in claim 5, it is characterised in that the retaining piece is arranged at intervals at described some Between contact flat spring, the front-end edge on the docking head of the insulating body is communicated with the through slot of the docking chamber, described to pass through Stop section is provided between groove, the contact flat spring of the metal retainer extends into the docking intracavitary, institute from the through slot State retaining piece and be connected to the stop section to provide enough elastic force to the contact flat spring.
8. positive anti-plug USB plug as claimed in claim 1, it is characterised in that the plastic body bottom side rear end of the terminal group is set There is the first location division, the shielding part rear end of the metal button member is provided with the second location division, and the circuit board front-end edge is provided with positioning Convex portion, first location division form the locating slot for positioning the positioning convex portion with the second location division.
9. positive anti-plug USB plug as claimed in claim 1, it is characterised in that the metal shell includes being sheathed on from rear end The first metal-back on the insulating body and the second metal-back from front end sleeve on first metal-back, described the The afterbody of one metal-back is respectively equipped with hangnail, projection in longitudinal direction, and the front end of second metal-back is distinguished in longitudinal direction After second metal-back is positioned at first metal-back provided with the corresponding hangnail, the notch part of projection and pore structure End.
CN201510426989.7A 2015-07-20 2015-07-20 Positive anti-plug USB plug Active CN105024230B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510426989.7A CN105024230B (en) 2015-07-20 2015-07-20 Positive anti-plug USB plug

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Application Number Priority Date Filing Date Title
CN201510426989.7A CN105024230B (en) 2015-07-20 2015-07-20 Positive anti-plug USB plug

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CN105024230B true CN105024230B (en) 2017-12-05

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106911026A (en) * 2017-02-16 2017-06-30 深圳市长盈精密技术股份有限公司 Electric connector and its manufacture method
CN107017491A (en) * 2017-03-23 2017-08-04 启东乾朔电子有限公司 Electric connector
CN107134675B (en) * 2017-04-13 2019-07-23 东莞市精和电子科技有限公司 Type-C interface
CN109599704A (en) * 2017-10-03 2019-04-09 连展科技(深圳)有限公司 Plug connector
CN213151158U (en) 2020-06-19 2021-05-07 东莞立讯技术有限公司 Back panel connector
TWI792271B (en) 2020-06-19 2023-02-11 大陸商東莞立訊技術有限公司 Backplane connector assembly
CN112652906B (en) 2020-06-19 2022-12-02 东莞立讯技术有限公司 Plugging module and cable connector
CN112736524B (en) 2020-12-28 2022-09-09 东莞立讯技术有限公司 Terminal module and backplane connector

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CN203883202U (en) * 2014-05-23 2014-10-15 仕昌电子(深圳)有限公司 Miniature SB front/reverse plugging male socket connector
CN104577521A (en) * 2014-12-26 2015-04-29 东莞市雅联电子有限公司 Novel USB (universal serial bus) connector
CN204481193U (en) * 2015-01-22 2015-07-15 东莞市坚诺电子有限公司 A kind of structure improved USB type C connector male head

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Publication number Priority date Publication date Assignee Title
CN203883202U (en) * 2014-05-23 2014-10-15 仕昌电子(深圳)有限公司 Miniature SB front/reverse plugging male socket connector
CN104577521A (en) * 2014-12-26 2015-04-29 东莞市雅联电子有限公司 Novel USB (universal serial bus) connector
CN204481193U (en) * 2015-01-22 2015-07-15 东莞市坚诺电子有限公司 A kind of structure improved USB type C connector male head

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