CN207098127U - Electric connector - Google Patents
Electric connector Download PDFInfo
- Publication number
- CN207098127U CN207098127U CN201720934740.1U CN201720934740U CN207098127U CN 207098127 U CN207098127 U CN 207098127U CN 201720934740 U CN201720934740 U CN 201720934740U CN 207098127 U CN207098127 U CN 207098127U
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- CN
- China
- Prior art keywords
- insulating body
- electric connector
- snap close
- shielding casing
- close piece
- Prior art date
- Legal status (The legal status 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 status listed.)
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Abstract
The utility model provides a kind of electric connector,It includes insulating body,Some conducting terminals being fixed in the insulating body,The snap close piece of butt connector and the shielding casing being coated on outside the insulating body can be latched,The insulating body has the receiving space for being available for butt-joint socket connector to insert,Conducting terminal includes the first end subgroup and Second terminal group set along short transverse in two rows,First end subgroup is corresponding with Second terminal group and reverse arrangement,Each conducting terminal has the elastic contact arm for protruding into receiving space,It is fixed on the holding parts in the terminal groove of insulating body and is extended back from holding parts and stretch out the afterbody outside the rear end face of insulating body,In on fore-and-aft direction,The rear end face of insulating body is located in front of the rear surface of shielding casing,To form inside shielding casing and between end face and rear surface the holding tank entered for marine glue in the rear.The electric connector has good waterproof effect.
Description
Technical field
The utility model is related to connector technique field, more particularly to it is a kind of can just anti-plug electric connector.
Background technology
With the rapid development of electronics industry science and technology, the volume of electronic product is even more along more and more frivolous, short and small
Trend development, this also requires that the spare part size of electronic product is less and less, and connector industry be even more stand in the breach.
Due to requiring the smaller of USB Type-C connectors of new generation, this causes, production more preferable to mechanical property requirements
Product design difficulty is higher.In order to towards more frivolous, more very thin equipment, and ensure the reliability of product structure, major producer is confused
Confusingly release corresponding structure design.
A kind of existing USB Type-C plug connectors, its two row for including insulating body, being fixed in insulating body
Conducting terminal and the snap close piece along short transverse between two row's conducting terminals, but plug-type snap close piece and conducting terminal
When being assembled into insulating body, and insulating body and shielding casing assembling when, can have assembly clearance, therefore USB
The waterproof of Type-C connectors is the big problem for needing to solve in design.
Therefore, it is necessary to a kind of improved electric connector is provided to overcome above mentioned problem.
Utility model content
The purpose of this utility model be to provide it is a kind of can effective waterproof electric connector.
To realize above-mentioned purpose of utility model, the utility model provides a kind of electric connector, and it includes insulating body, consolidated
Due to some conducting terminals in the insulating body, the snap close piece of butt connector can be latched and it is coated on the insulating body
Outer shielding casing, the insulating body have the receiving space for being available for butt-joint socket connector to insert, the conducting end attached bag
The first end subgroup and Second terminal group set along short transverse in two rows is included, the first end subgroup is relative with Second terminal group
Should and reversely it arrange, each conducting terminal, which has, to be protruded into the elastic contact arm of the receiving space, is fixed on and insulate this
Holding parts in the terminal groove of body and extended back from holding parts and stretch out the afterbody outside the rear end face of insulating body, in front and rear
On direction, the rear end face of the insulating body is located in front of the rear surface of the shielding casing, with inside the shielding casing
And the holding tank entered for marine glue is formed between end face and rear surface in the rear.
As further improvement of the utility model, the front end of the afterbody forms the connected platform of corresponding holding parts
Rank portion, the stepped portions are in the holding tank.
As further improvement of the utility model, the snap close piece, which has, to stretch out with the institute with the shielding casing
The auxiliary section that rear surface abuts against is stated, auxiliary section front end is provided with the abutting to be leant with the rear surface of shielding casing
Face.
As further improvement of the utility model, the insulating body has main part, be arranged at the main part before
Side docking section and set respectively positioned at the main part rear and outstanding installation portion, top, the bottom surface of the installation portion
Be equipped with an at least projection, between the top of the installation portion, bottom surface upper and lower internal face corresponding with shielding casing formed with
Gap.
As further improvement of the utility model, the shielding casing includes frame and prolonged backward from the frame
The extension stretched, the extension be integrally expanded outwardly from frame to be formed expand structure.
As further improvement of the utility model, the frame is sheathed on outside the main part and docking section, described
Extension is sheathed on the outside of the installation portion, and has one between the front end of the installation portion and the preceding internal face of the extension
Fixed clearance space.
As further improvement of the utility model, the snap close piece is a pair be oppositely arranged, and a pair of catches part edge
Be horizontally set at the both sides of the conducting terminal, snap close piece described in each of which have base portion, the lock catch arm positioned at its front end, with
The fixed part of insulating body secure fit and the connecting portion positioned at its rear end, the lock catch arm prolong forward from the front end of the base portion
Stretch, it is relatively arranged on the snap close piece in the both ends on fore-and-aft direction with the connecting portion.
As further improvement of the utility model, the connecting portion has the rear end face for extending backward more than insulating body
An at least grounding parts and along short transverse extend an at least auxiliary section, on fore-and-aft direction, the matching part is in described
In front of grounding parts.
As further improvement of the utility model, the fixed part is set close to the connecting portion, and with from it
The convex portion that surface is set towards another snap close piece projection, the angle set inside the installation portion is locked on front side of the convex portion
Portion.
As further improvement of the utility model, the both sides of the insulating body are respectively arranged with to be extended along the longitudinal direction
Groove, the snap close piece inserts in the corresponding groove of insulating body from back to front, and the convex portion is after respective side groove
End is sealed.
The beneficial effects of the utility model are：The rear portion of the utility model electric connector, which is provided with, to be entered and wraps up for marine glue
The holding tank of terminal tails and snap close piece, so to improve the waterproof effect of electric connector and classification of waterproof.
Brief description of the drawings
Fig. 1 is the three-dimensional assembly diagram of the utility model electric connector；
Fig. 2 is the view at another visual angle of electric connector shown in Fig. 1；
Fig. 3 is the three-dimensional exploded view of electric connector shown in Fig. 1；
Fig. 4 is the view at another visual angle of electric connector shown in Fig. 3；
Fig. 5 is the three-dimensional assembly diagram after electric connector removes shielding casing shown in Fig. 4；
Fig. 6 is the rearview of electric connector shown in Fig. 1；
Fig. 7 to Fig. 8 is the schematic cross-sectional view of A-A along electric connector shown in Fig. 2；
Fig. 9 is the schematic cross-sectional view of B-B along electric connector shown in Fig. 2.
Embodiment
The utility model is described in detail below with reference to each embodiment shown in the drawings.But these embodiments
The utility model is not intended to limit, structure, method or the work(that one of ordinary skill in the art is made according to these embodiments
Conversion on energy is all contained in the scope of protection of the utility model.
It refer to shown in Fig. 1 to Fig. 9, for the preferred embodiment of the utility model electric connector 100, the electric connector
100 include insulating body 1, some conducting terminals 2 being fixed in the insulating body 1, snap close piece 3, are coated on the insulation
Shielding casing 4 outside body 1 and the circuit board being electrically connected with positioned at the rear of insulating body 1 and with conducting terminal 2（It is not shown）.
It refer to shown in Fig. 3 to Fig. 8, the insulating body 1 has main part 11, is arranged at the docking in the front of main part 11
Portion 12 and positioned at the rear of main part 11 and outstanding installation portion 13, wherein the main part 11, docking section 12 and installation
Oval column is set on the whole in portion 13, the receiving space that the inner side of the docking section 12 is set formed with forwards open
120, so that butt-joint socket connector inserts forward or backwards.If the roof and inside bottom wall of the insulating body 1 are respectively equipped with
Dry end pilot trench 10, the rear end face 130 of the self-insulating body 1 of terminal groove 10 extend forwardly into the inner side of docking section 12 and with receipts
Hold space 120 to be connected；Meanwhile the terminal groove 10 does not run through insulating body 1 along short transverse.In the present embodiment,
The terminal containing slot 10 set on the roof of the insulating body 1 and corresponding terminal groove 10 on bottom wall are corresponding along short transverse
But it is not connected, namely independently of one another.
The front side of the installation portion 13 is connected with the main part 11, and its top surface and bottom surface are respectively located at the main body
The corresponding top surface and outer side bottom surface in portion 11, such that the front end of the installation portion 13 exposes forward.The installation portion 13
The projection 131 of at least one projection laterally is respectively equipped with top surface and bottom surface, in the present embodiment, top surface and bottom surface are respectively equipped with
A pair of projections 131.The installation portion 13 is from concave shape groove 132 in a pair forward of end face 130 thereafter, the groove 132
The both sides being relatively arranged on the horizontal direction of installation portion 13, and set close to the side end of installation portion 13, while it is described recessed
Groove 132 extends along short transverse and runs through the installation portion 13.
The both sides of the insulating body 1 are respectively arranged with the groove 14 that extends along the longitudinal direction and before corresponding grooves 14
The scarce portion 15 of side, the rear end face 130 of the groove 14 from the installation portion 13 extends forwardly into be connected with the scarce portion 15, and
And the groove 14 is located at the correspondence position of both sides on the main part 11 and the horizontal direction of the installation portion 13, in addition, described
Groove 14 is connected with the corresponding groove 132 positioned at rear side.
It refer to shown in Fig. 2 to Fig. 6, the conducting terminal 2 includes the first end subgroup set along short transverse in two rows
21 and Second terminal group 22, the first end subgroup 21 is corresponding with Second terminal group 22 and reverse arrangement.Wherein the first terminal
Group 21 includes a pair of ground terminal 20a, a pair of power source terminals 20b, an inspection terminal 20c（CC1, to detect positive anti-plug
Function and identification CABLE function）And a pair of signal terminal 20d, and inspection terminal 20c and a pair of signal terminal 20d are transversely
Direction is located at the middle part of the first end subgroup 21, namely between a pair of power source terminals 20b, the pair of ground terminal
20a is located at outermost, and a pair of power source terminals 20b is located at the inspection terminal 20c or signal terminal 20d outside.In this implementation
In example, the difference of the Second terminal group 22 and first end subgroup 21 is, Second terminal group 22 is provided with a pair of signal ends less
Sub- 20d（As shown in Figure 6）.
Each conducting terminal 2, which has, to be protruded into the elastic contact arm 201 of receiving space 120, is fixed on insulating body 1
Terminal groove 10 in holding parts 202 and extended back from holding parts 202 and stretch out the afterbody 203 of insulating body 1, it is described to connect
Contact arm 201 is relatively arranged on the upper side and lower side of receiving space 120 in two rows.
In the present embodiment, the contact arm 201 protrudes into receiving space 120 up or down, and has and be located at it
The contact site 2011 of free end, the contact site 2011 is towards the corresponding projection of contact arm 201 in another row, by a pair in succession
Connect the tongue piece of device（It is not shown）It is held between the contact site 2011.The top or bottom of the afterbody 203 are towards relative
Afterbody 203, which protrudes, forms clamping part 2031, and the clamping part 2031 is set close to the rear end of the conducting terminal 2, therefore upper and lower
The 2031 opposite projection of clamping part of the afterbody 203 of two rows is with by circuit board（It is not shown）It is sandwiched therebetween.
Meanwhile the terminal groove 10 and the contact site of the conducting terminal 2 are corresponding about 2011, to provide conducting terminal 2
The space outwards floated of contact site 2011, facilitate the grafting of butt connector.First end subgroup 21 and Second terminal group 22
Position of the contact site 2011 on insulating body 1 sets pair with respective terminal on the USB Type-C plug connectors of standard
Socket part position sets identical.
In the present embodiment, each conducting terminal in first end subgroup 21 with each conducting terminal in Second terminal group 22
Split settings and form conducting terminal independent of each other.In other embodiments, the ground terminal in the first end subgroup 21
20a and power supply terminal 20b holding parts 202 also can respectively with Second terminal group 22 along the corresponding conducting terminal of short transverse
The one of holding parts 202 is connected, so as to form disjunctor terminal.
During assembling, insulating body 1 is fixed in assembling to the first end subgroup 21 from back to front respectively with Second terminal group 22
Corresponding end pilot trench 10 in.Arranged with same in terminal group the front end of contact arm 201 of the ground terminal 20a and power supply terminal 20c
Inspection terminal 20d front end it is transversely concordant, and the contact of be oppositely arranged two conducting terminals 2 in two row's terminal groups
Spacing between portion 2011 is identical.
The snap close piece 3 is metal material, and in the present embodiment, the snap close piece 3 is be oppositely arranged a pair, and a pair
Snap close piece 3 is transversely arranged at the both sides of the conducting terminal 2, and snap close piece 3 described in each of which has base portion 31, before it
The fixed part 33 and the connecting portion 34 positioned at its rear end of the interference engagement of installation portion 13 of the lock catch arm 32 at end and insulating body 1.Institute
State lock catch arm 32 from the front end of the base portion 31 to extend forward, it is relatively arranged on the snap close piece 3 in front and rear with connecting portion 34
Both ends on direction.
In the present embodiment, the fixed part 33 is set close to the connecting portion 34, and with from its inner surface towards separately
Convex portion 331 that the projection of one snap close piece 3 is set and from it along short transverse on the outstanding interference part 332 in both sides；It is described
Convex portion 331 rolls forward and inwardly tiltedly extension, with the interference engagement of installation portion 13, and to pass through the interference part on the inside of it
332 both sides in its height direction and the interference engagement of installation portion 13.
The connecting portion 34 have extend backward more than insulating body 1 rear end face 130 an at least grounding parts 341 and
At least auxiliary section 342 extended along short transverse, on fore-and-aft direction, before the auxiliary section 342 is located at the grounding parts 341
Side.In the present embodiment, each snap close piece 3 is structure symmetrical above and below, and its rear end is provided with what is be oppositely arranged along short transverse
A pair of grounding parts 341, and it has disposed thereon respectively, lower both sides and is oppositely arranged, a pair of oppositely extending auxiliary sections
342, the front end of the auxiliary section 342 is formed with bearing surface 3421.In other embodiments, the auxiliary section 342 also can be along it
He stretches out in direction, such as stretches out in transverse direction, as long as making bearing surface 3421 and the masking of the front end of auxiliary section 342
The rear surface of housing 4 abuts against.In the present embodiment, the bearing of trend of the groove 132 and the auxiliary section 342 are prolonged
It is consistent to stretch direction.
In addition, the auxiliary section 342 is provided with chamfering 3422 along the free terminal in short transverse, the chamfering 3422 is located at
The outside of the free terminal of the auxiliary section 342, such that the orthographic projection of its lateral surface is seen in the auxiliary section 342 from back to front
Inside the orthographic projection of shielding casing 4（As shown in Figure 6）, in other embodiments, the auxiliary section 342 is in short transverse
Free terminal on the outside of also can not be chamfering, and any form of scarce portion is designed to, as long as making auxiliary section 342 from back to front
Orthographic projection is fallen completely within inside the orthographic projection of shielding casing 4, is not out the appearance profile of the extension 42 of shielding casing 4（
That is its outer rim）It is outer, in the outer profiled insulation shell of electric connector 100（It is not shown）When do not have metal convex closure, and then cause
The formation of insulation crust is more prone to and yields is higher.
When the snap close piece 3 is assembled in insulating body 1, the snap close piece 3 inserts pair of insulating body 1 from back to front
Answer in groove 14, wherein the lock catch arm 32 passes through corresponding groove 14 and is exposed to both sides on the horizontal direction of insulating body 1
Lack in portion 15, to carry out lock fixing with butt connector.The base portion 31 is limited in the groove 14 and is located at the main part
In the part of 11 inner sides, and the fixed part 33 be contained in the groove 14 in the part of the inner side of the installation portion 13 and with
The interference engagement of installation portion 13, wherein the front side of the convex portion 331 is locked to the corner 133 that the inside of installation portion 13 is set
（As shown in Figure 9）, and sealed in the rear end of respective side groove 14.
The grounding parts 341 are exposed to the rear side of rear end face 130 of the installation portion 13, with the circuit board（It is not shown）
Machinery and electric connection, as a result, snap close piece 3 can not only latch butt connector, while also have earthing effect concurrently.
The front end of the shielding casing 4 has the interface frame, mating frame mouth of ellipse, and it is connected with the USB Type-C plugs of standard
The interface frame, mating frame mouth of device is consistent, coordinates for the positive and negative insertion with butt-joint socket connector, has the applicable use of positive anti-plug just
Prompt sexual clorminance.The shielding casing 4 is the gapless structure that is drawn, it include frame 41 and from the frame 41 to
The extension 42 extended afterwards, in the present embodiment, the extension 42 integrally expand outwardly to be formed from frame 41
Structure is expanded, wherein the height of the extension 42 is big compared with the height of the frame 41, and the extension 42 is in height
The distance expanded outwardly on direction is big in the distance expanded outwardly on horizontal direction compared with it.
The shielding casing 4 is sheathed on the outside of the insulating body 1 from front to back, wherein the frame 41 is sheathed on
Outside the main part 11 and docking section 12, the extension 42 is sheathed on the outside of the installation portion 13, and the installation portion 13
There is certain clearance space between front end and the preceding internal face of the extension 42；Meanwhile on fore-and-aft direction, the insulation
The rear end face 130 of body 1 is located at the front of rear surface 420 of the extension 42, so with the inside of extension 42 and in rear end
Holding tank 421 is formed between face 130 and rear surface 420.The front end of the afterbody 203 of the conducting terminal 2 forms corresponding
The connected stage portion 2032 of holding parts 202, the stage portion 2032 are located in the holding tank 421.Due to the top of installation portion 13, bottom
Face is respectively arranged with projection 131, thus the top of the installation portion 13, bottom surface upper and lower internal face corresponding with extension 420 it
Between be also formed with gap.
The bearing surface 3421 of the front side of auxiliary section 342 of the snap close piece 3 is resisted against forward the rear surface of the extension 42
420, so that auxiliary section 342 and the rear surface of shielding casing 4 overlap, pass through the limit on the rear surface 420 of the shielding casing 4
Position effect, to prevent that it is not in place that the snap close piece 3 from inserting too deep or insertion when inserting insulating body 1；In addition, the abutting
The overlapping mode for compressing junction on face 3421 and rear surface 420 can be it is mechanical be connected or radium-shine welding etc. just
Formula is to be further ensured that effectively contacting for snap close piece 3 and shielding casing 4.
When the rear side of electric connector 100 does water-proofing treatment to it, marine glue is filled to the appearance of the inner side of extension 42
Receive in groove 421 and in groove 132, by the rear end of holding parts 202, the stage portion 2032 of afterbody 203 and the back segment of snap close piece 3
Sidepiece wraps up, and realizes conducting terminal 2, snap close piece 3, insulating body 1 and the sealing at the rear portion of shielding casing 4, waterproof and strengthens its it
Between reliable connection；Meanwhile the marine glue poured into rear side penetrates into forward the top, bottom surface and extension of installation portion 13
In gap between 420 upper and lower internal face and in the clearance space of the front side of installation portion 13, to realize shielding casing 4
The waterproof of assembly clearance position corresponding with insulating body 1, improve the waterproof effect and classification of waterproof of electric connector 100.
It should be appreciated that although the present specification is described in terms of embodiments, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
For bright book as an entirety, the technical scheme in each embodiment may also be suitably combined to form those skilled in the art can
With the other embodiment of understanding.
The a series of tool described in detail only for feasibility embodiment of the present utility model of those listed above
Body illustrates that they are simultaneously not used to limit the scope of protection of the utility model, all to be made without departing from the utility model skill spirit
Equivalent implementations or change should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of electric connector, it includes insulating body, some conducting terminals being fixed in the insulating body, can latched pair
The snap close piece of connecting connector and the shielding casing being coated on outside the insulating body, the insulating body, which has, is available for butt-joint socket
The receiving space of connector insertion, the conducting terminal include first end subgroup and the second end set along short transverse in two rows
Subgroup, the first end subgroup is corresponding with Second terminal group and reverse arrangement, and each conducting terminal, which has, protrudes into institute
State the elastic contact arm of receiving space, the holding parts being fixed in the terminal groove of insulating body and extend back and dash forward from holding parts
The afterbody stretched out outside the rear end face of insulating body, it is characterised in that：In on fore-and-aft direction, the rear end face of the insulating body is located at
In front of the rear surface of the shielding casing, supplied with being formed in the rear inside the shielding casing and between end face and rear surface
The holding tank that marine glue enters.
2. electric connector as claimed in claim 1, it is characterised in that：The front end of the afterbody forms corresponding holding parts
Connected stage portion, the stepped portions are in the holding tank.
3. electric connector as claimed in claim 1 or 2, it is characterised in that：The snap close piece have stretch out with it is described
The auxiliary section that the rear surface of shielding casing abuts against, the auxiliary section front end are provided with the rear surface phase with shielding casing
Against bearing surface.
4. electric connector as claimed in claim 1 or 2, it is characterised in that：The insulating body has main part, is arranged at institute
State docking section in front of main part and positioned at the main part rear and outstanding installation portion, the top of the installation portion,
Bottom surface is respectively arranged with an at least projection, with the top of the installation portion, bottom surface upper and lower internal face corresponding with shielding casing it
Between formed with gap.
5. electric connector as claimed in claim 4, it is characterised in that：The shielding casing includes frame and from the framework
The extension that portion extends back, the extension be integrally expanded outwardly from frame to be formed expand structure.
6. electric connector as claimed in claim 5, it is characterised in that：The frame is sheathed on the main part and docking section
Outside, the extension is sheathed on the outside of the installation portion, and the preceding internal face of the front end of the installation portion and the extension it
Between there is certain clearance space.
7. electric connector as claimed in claim 6, it is characterised in that：The snap close piece is a pair be oppositely arranged, and a pair
Snap close piece is transversely arranged at the both sides of the conducting terminal, and snap close piece described in each of which has base portion, positioned at its front end
Lock catch arm, with the fixed part of insulating body secure fit and the connecting portion positioned at its rear end, the lock catch arm is from the base portion
Front end extends forward, and it is relatively arranged on the snap close piece in the both ends on fore-and-aft direction with the connecting portion.
8. electric connector as claimed in claim 7, it is characterised in that：The connecting portion, which has, extends backward more than insulating body
Rear end face an at least grounding parts and at least auxiliary section that extends along short transverse, on fore-and-aft direction, the auxiliary section
In front of the grounding parts.
9. electric connector as claimed in claim 7, it is characterised in that：The fixed part is set close to the connecting portion, and is had
There is the convex portion set from its inner surface towards another snap close piece projection, be locked to inside the installation portion and set on front side of the convex portion
The corner put.
10. electric connector as claimed in claim 9, it is characterised in that：The both sides of the insulating body are respectively arranged with along preceding
Rear is to the groove of extension, and the snap close piece inserts in the corresponding groove of insulating body from back to front, and the convex portion is in corresponding
The rear end of side groove is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720934740.1U CN207098127U (en) | 2017-07-28 | 2017-07-28 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720934740.1U CN207098127U (en) | 2017-07-28 | 2017-07-28 | Electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207098127U true CN207098127U (en) | 2018-03-13 |
Family
ID=61542446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720934740.1U Active CN207098127U (en) | 2017-07-28 | 2017-07-28 | Electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207098127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248637A (en) * | 2017-07-28 | 2017-10-13 | 昆山全方位电子科技有限公司 | Electric connector |
| CN111987506A (en) * | 2020-08-03 | 2020-11-24 | 深圳市长盈精密技术股份有限公司 | Positive and negative plug USB plug and manufacturing method thereof |
-
2017
- 2017-07-28 CN CN201720934740.1U patent/CN207098127U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248637A (en) * | 2017-07-28 | 2017-10-13 | 昆山全方位电子科技有限公司 | Electric connector |
| CN107248637B (en) * | 2017-07-28 | 2023-12-22 | 昆山全方位电子科技有限公司 | Electric connector |
| CN111987506A (en) * | 2020-08-03 | 2020-11-24 | 深圳市长盈精密技术股份有限公司 | Positive and negative plug USB plug and manufacturing method thereof |
| CN111987506B (en) * | 2020-08-03 | 2022-02-01 | 深圳市长盈精密技术股份有限公司 | Positive and negative plug USB plug and manufacturing method thereof |
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