CN107394484A - A kind of electrical connector interface and preparation method thereof - Google Patents
A kind of electrical connector interface and preparation method thereof Download PDFInfo
- Publication number
- CN107394484A CN107394484A CN201710510438.8A CN201710510438A CN107394484A CN 107394484 A CN107394484 A CN 107394484A CN 201710510438 A CN201710510438 A CN 201710510438A CN 107394484 A CN107394484 A CN 107394484A
- Authority
- CN
- China
- Prior art keywords
- terminal
- median septum
- row
- lower row
- upper row
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
- H01R43/24—Assembling by moulding on contact members
Abstract
The invention provides a kind of electrical connector interface and preparation method thereof.The electrical connector interface includes upper row's terminal, lower row's terminal, median septum and housing between upper row's terminal and lower row's terminal；The housing fixes upper row's terminal, lower row's terminal and the median septum；Upper row's terminal is connected with lower row's terminal in one end close to the housing；The surface of the median septum is covered with insulating materials, or the median septum is insulating materials.Because median septum surface insulation or median septum insulate, terminal arch is caused to be contacted with median septum because briquetting pressure is excessive in injection molding process, also the phenomenon for being not in terminal with median septum short circuit, avoid due to terminal and median septum contact short circuit and caused by the problems such as burning machine.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of electrical connector interface and preparation method thereof.
Background technology
With the development of the communication technology, requirement more and more higher of the people to mobile terminal interface, the compatible legacy interface of energy is simultaneously
The interface of energy expanded function lifting experience becomes more and more important, thus USB Type_C gradually instead of traditional electrical connection
Device.
The USB Type_C products to circulate in the market, due to product defects or improper use, cause row's terminal up and down
When contacting and turn on middle barricade, the problems such as ultimately resulting in short-circuit burning machine, Consumer's Experience is reduced, or even threaten user's life
And property safety.Therefore, row's terminal up and down and middle barricade contact short circuit how to be avoided as the biggest problem in procedure for producing.
Some manufacturers are positioned by processing procedure and fix upper and lower row's terminal, then are filling plastic cement between row's terminal and middle barricade up and down, but
It is the deformation condition that can not monitor and examine completely row's terminal up and down in the processing procedure of filling plastic cement.Ye You manufacturers pass through reduction
The area of row's terminal reduces short-circuit risks up and down, but can not avoid completely, still there is failure risk and potential safety hazard.
The content of the invention
The embodiment of the present invention provides a kind of electrical connector interface and preparation method thereof, is contacted with to solve terminal with median septum short
Cause the problem of burning machine in road.
One side according to the embodiment of the present invention, there is provided a kind of electrical connector interface, the electrical connector interface include
Upper row's terminal, lower row's terminal, median septum and housing between upper row's terminal and lower row's terminal；
The housing fixes upper row's terminal, lower row's terminal and the median septum；
Upper row's terminal is connected with lower row's terminal in one end close to the housing；
The surface of the median septum is covered with insulating materials, or the median septum is insulating materials.
Another aspect according to the embodiment of the present invention, there is provided a kind of preparation method of electrical connector interface, methods described
Including：
The row's of installing terminal, lower row's terminal and median septum in the housing, wherein the median septum is in upper row's terminal and lower row
In space between terminal, the interval plate surface is covered with insulating materials, or the median septum is insulating materials；
Upper row's terminal, lower row's terminal and the median septum are fixed using Shooting Technique.
According to the embodiment of the present invention, electrical connector interface includes upper row's terminal, lower row's terminal, positioned at upper row's terminal and lower row
Median septum and housing among terminal；The surface of median septum is covered with insulating materials, or median septum is insulating materials.Due in
Baffle surface insulate or median septum insulation, causes terminal arch with because briquetting pressure is excessive in injection molding process
The phenomenon that baffle contacts are also not in terminal with median septum short circuit, avoid due to terminal and median septum contact short circuit and make
Into burning machine the problems such as.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of electrical connector interface of the embodiment of the present invention one；
Fig. 2 is the schematic diagram of the median septum of the embodiment of the present invention one；
Fig. 3 is a kind of step flow chart of the preparation method of electrical connector interface of the embodiment of the present invention two.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Embodiment one
A kind of electrical connector interface provided in an embodiment of the present invention is discussed in detail.
Reference picture 1, shows a kind of electrical connector interface in the embodiment of the present invention, and the electrical connector interface includes upper
Arrange terminal 101, lower row's terminal 102, the median septum 103 between upper row's terminal 101 and lower row's terminal 102 and
Housing 104；
The housing 104 fixes upper row's terminal 101, lower row's terminal 102 and median septum 103；
Upper row's terminal 101 is connected with lower row's terminal 102 in one end close to the housing 104；
The surface of the median septum 103 is covered with insulating materials, or the median septum is insulating materials.
In the present embodiment, electrical connector interface can include USB tpyeC interfaces.USB tpyeC interfaces have many advantages, such as：
First, quick, the maximum transmission rate of USB tpyeC interfaces is 10Gb per second, and USB tpyeA up to the present limited transmissions
Speed is 5Gbps.Second, have it is multi-functional, USB tpyeC interfaces can transmit data, carry out charging can also be used as video it is defeated
Exit port connects external display device.Three can be achieved on transmitted in both directions, the power transmissions of USB tpyeC interfaces be it is two-way,
Possess two kinds of transmit power modes, user can be not only charging of mobile devices with notebook, can also utilize miscellaneous equipment or
Portable power source charges for notebook.
Electrical connector interface (USB tpyeC interfaces) includes upper row's terminal 101, lower row's terminal 102, positioned at the upper row end
Median septum 103 and housing 104 among son 101 and lower row's terminal 102.The housing 104 fixes upper row's terminal
101st, lower row's terminal 102 and median septum 103.The effect of upper row's terminal 101 be connection power supply, and data-signal etc., lower row end
Each terminal of son 102 corresponds with upper row's terminal 101, therefore upper row's terminal 101 and lower row's terminal 102 are close to housing 104
One end be connected.Median septum 103 plays cut-off between upper row's terminal 101 and lower row's terminal 102, the row's of avoiding terminal
101 and the lower contact short circuit of row's terminal 102.Wherein, the surface of median septum 103 is covered with insulating materials, or median septum 103 is exhausted
Edge material, the schematic diagram of median septum as shown in Figure 2.The embodiment of the present invention does not limit the shape of median septum in detail, can be with
It is configured according to actual conditions.Because the surface of median septum 103 is covered with insulating materials, or median septum 103 is insulating materials,
Even if upper row's terminal 101 or lower row's terminal 102 contact with median septum, be also not in terminal and the phenomenon of median septum short circuit, keep away
Exempted from due to terminal and median septum contact short circuit and caused by the problems such as burning machine.
Preferably, electrophoresis (electrophoresis, EP) technique can be used to realize to cover on the surface of median septum 103
Insulating materials.Specifically, in the presence of external dc power supply, the colloidal solid of insulating materials moves to median septum, and adheres to
On the surface of median septum.Electrophoresis process has the advantages of coating is plentiful, uniform, smooth, smooth, in being covered in using electrophoresis process
Hardness, adhesive force, corrosion resistant, impact property, the permeance property of the insulating barrier of baffle surface are substantially better than other coating process.
In a preferred embodiment of the present invention, the insulating materials includes acrylic resin.
In the present embodiment, insulating materials can be acrylic resin.Acrylic resin has good proof voltage energy, can
Effectively in general extrinsic current is kept apart with product, while there is good compactness, can effectively also by metal and air,
The medium of the generations such as water, electrolyte corrosion is kept apart, the condition deficiency that corrosion occurs, and plays a part of prevention.
In a preferred embodiment of the present invention, upper row's terminal 101 and lower row's terminal 102 and the median septum 103
Distance be 0.15mm.
In the present embodiment, the distance of upper row's terminal 101 and lower row's terminal 102 and median septum 103 could be arranged to
0.15mm, row's terminal 101 and lower row's terminal 102 is not contacted with median septum 103, further avoid due to terminal and median septum
Contact short circuit and caused by burn machine problem.
In a preferred embodiment of the present invention, upper row's terminal 101 and lower row's terminal 102 are respectively arranged with 12 and drawn
Pin.
In the present embodiment, upper row's terminal 101 and lower row's terminal 102 are respectively arranged with 12 pins, specifically, upper row's terminal
101 include GND, TX1+, TX1-, VBUS、CC1、D+、D-、SUB1、VBUS、RX2-、RX2+、GND；Lower row's terminal 102 is corresponding to be included
GND、RX1+、RX1-、VBUS、SUB2、D-、D+、CC2、VBUS、TX2-、TX2+、GND.TX and RX is two groups of difference of data transfer
Signal；CC1 and CC2 effect includes detection and connected, and distinguishes positive and negative, configures VBUSEtc..Power supply VBUSThere are 4 with ground GND,
100W can be supported；D+ and D- is used for the standard before compatible USB.12 pins and lower row's terminal due to upper row's terminal 101
12 pins correspond, make no matter electrical connection interface is just being inserted or anti-plug can realize the function of electrical connection, solve
The problem of " the eternal inaccurate plugs of USB ".
In summary, in the embodiment of the present invention, electrical connector interface includes upper row's terminal, lower row's terminal, positioned at upper row end
Median septum and median septum among sub and lower row's terminal；The surface of median septum is insulation covered with insulating materials, or median septum
Material.Due to median septum surface insulation, in injection molding process, shaping, pressure is excessive to cause terminal arch and median septum
The phenomenon that contact is also not in terminal with median septum short circuit, avoid due to terminal and median septum contact short circuit and caused by
The problems such as burning machine.
Embodiment two
Reference picture 3, the step of showing a kind of preparation method of electrical connector interface in another embodiment of the present invention
Flow chart.Methods described includes:
Step 201, the row's of installing terminal, lower row's terminal and median septum in the housing, wherein the median septum is at upper row end
In space between sub and lower row's terminal, the interval plate surface is covered with insulating materials, or the median septum is insulating materials.
In the present embodiment, upper row's terminal 101, lower row's terminal 102 and median septum 103 are arranged in housing 104, wherein in
In space of the dividing plate 103 between upper row's terminal 101 and lower row's terminal 102.The surface of median septum 103 covered with insulating materials or
Median septum described in person is insulating materials.Kinds of processes can be used using the surface of insulating materials covering median septum 103, such as is sprayed
Painting, electrophoresis etc..Specifically, using electrophoresis process in the surface covering insulating material of median septum 103, the colloidal solid of insulating materials
In the presence of external dc power supply, move and be attached on the surface of median septum 103 to median septum 103.Using electrophoresis process
The insulating barrier being covered on median septum 103 is plentiful, uniform, smooth, smooth.
Preferably, the insulating materials includes acrylic resin.Acrylic resin has good proof voltage energy, can have
Effect ground keeps apart in general extrinsic current with product, while has good compactness, can effectively also by metal and air,
The medium of the generations such as water, electrolyte corrosion is kept apart, the condition deficiency that corrosion occurs, and plays a part of prevention.
Step 202, upper row's terminal, lower row's terminal and the median septum are fixed using Shooting Technique.
In the present embodiment, after median septum 103 is arranged in the space between upper row's terminal 101 and lower row's terminal 102,
Row's terminal 101, lower row's terminal 102 and median septum 103 are fixed using Shooting Technique.Preferably, upper row's terminal 101 is with
The distance for arranging terminal 102 and the median septum 103 is 0.15mm.Upper row's terminal 101 and lower row's terminal 102 and median septum 103
Space is reserved, avoids terminal from being contacted with median septum, the problem of further avoiding terminal and median septum short circuit from causing burning machine.
Preferably, upper row's terminal and lower row's terminal are respectively arranged with 12 pins.Wherein at least include power supply, data
The pins such as transmission, ground connection.12 pins of upper row's terminal 101 correspond with 12 pins of lower row's terminal, connect electrical connection
Mouthful no matter just inserting or anti-plug can realize the function of electrical connection, solving the problems, such as " the eternal inaccurate plugs of USB ".
In summary, the embodiment of the present invention, the in the housing row's of installing terminal, lower row's terminal and median septum, wherein interval
In space of the plate between upper row's terminal and lower row's terminal, interval plate surface is covered with insulating materials, or median septum is insulation material
Material；Row's terminal, lower row's terminal and median septum are fixed using Shooting Technique.Because median septum surface insulation or median septum insulate,
In injection molding process, pressure is excessive causes terminal arch to be contacted with median septum for sizing, be also not in terminal and in
The phenomenon of dividing plate short circuit, avoid due to terminal and median septum contact short circuit and caused by the problems such as burning machine.
It should be noted that for foregoing embodiment of the method, in order to be briefly described, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to
According to the present invention, some steps can use other orders or carry out simultaneously.Secondly, those skilled in the art should also know,
Embodiment described in this description belongs to preferred embodiment, and involved action is not necessarily essential to the invention.
Each embodiment in this specification is described by the way of progressive, what each embodiment stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.
It would have readily occurred to a person skilled in the art that be：Any combination application of above-mentioned each embodiment is all feasible, therefore
Any combination between above-mentioned each embodiment is all embodiment of the present invention, but this specification exists as space is limited,
This is not just detailed one by one.
Provided herein the scheme of electrical connector interface and preparation method thereof not with any certain computer, virtual system or
Person's miscellaneous equipment is inherently related.Various general-purpose systems can also be used together with teaching based on this.As described above,
It is obvious to construct with the structure required by the system of the present invention program.In addition, the present invention is not also for any specific
Programming language.It should be understood that the content of invention described herein can be realized using various programming languages, and above to spy
Attribute says that done description is to disclose the preferred forms of the present invention.
In the specification that this place provides, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice in the case of these no details.In some instances, known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify the disclosure and help to understand one or more of each inventive aspect,
Above in the description to the exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：I.e. required guarantor
The application claims of shield features more more than the feature being expressly recited in each claim.More precisely, such as right
As claim reflects, inventive aspect is all features less than single embodiment disclosed above.Therefore, it then follows tool
Thus claims of body embodiment are expressly incorporated in the embodiment, wherein the conduct of each claim in itself
The separate embodiments of the present invention.
Those of ordinary skill in the art it is to be appreciated that with reference to disclosed in the embodiment of the present invention embodiment description it is each
The unit and algorithm steps of example, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit
Connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, electrical connector interface of the invention and its preparation
The part or the part of the technical scheme that the technical scheme of method substantially contributes to prior art in other words can be with
The form of software product is embodied, and the computer software product is stored in a storage medium, including some instructions to
So that a computer equipment (can be personal computer, server, or network equipment etc.) performs each implementation of the present invention
The all or part of step of example methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or
CD etc. is various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (8)
1. a kind of electrical connector interface, it is characterised in that the electrical connector interface includes upper row's terminal, lower row's terminal, is located at
Median septum and housing between upper row's terminal and lower row's terminal；
The housing fixes upper row's terminal, lower row's terminal and the median septum；
Upper row's terminal is connected with lower row's terminal in one end close to the housing；
The surface of the median septum is covered with insulating materials, or the median septum is insulating materials.
2. electrical connector interface according to claim 1, it is characterised in that the insulating materials includes acrylic resin.
3. electrical connector interface according to claim 1, it is characterised in that upper row's terminal and lower row's terminal with it is described
The distance of median septum is 0.15mm.
4. electrical connector interface according to claim 1, it is characterised in that upper row's terminal and lower row's terminal are set respectively
It is equipped with 12 pins.
5. a kind of preparation method of electrical connector interface, it is characterised in that methods described includes：
The row's of installing terminal, lower row's terminal and median septum in the housing, wherein the median septum is in upper row's terminal and lower row's terminal
Between space in, the interval plate surface is covered with insulating materials, or the median septum is insulating materials；
Upper row's terminal, lower row's terminal and the median septum are fixed using Shooting Technique.
6. according to the method for claim 5, it is characterised in that the insulating materials includes acrylic resin.
7. according to the method for claim 5, it is characterised in that upper row's terminal and lower row's terminal and the median septum
Distance is 0.15mm.
8. according to the method for claim 5, it is characterised in that upper row's terminal and lower row's terminal are respectively arranged with 12
Pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510438.8A CN107394484A (en) | 2017-06-28 | 2017-06-28 | A kind of electrical connector interface and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510438.8A CN107394484A (en) | 2017-06-28 | 2017-06-28 | A kind of electrical connector interface and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107394484A true CN107394484A (en) | 2017-11-24 |
Family
ID=60334421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710510438.8A Pending CN107394484A (en) | 2017-06-28 | 2017-06-28 | A kind of electrical connector interface and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107394484A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742571A (en) * | 2018-11-22 | 2019-05-10 | 昆山捷皇电子精密科技有限公司 | A kind of anti-short circuit T ype-C female |
| CN114678712A (en) * | 2022-03-01 | 2022-06-28 | 深圳市步步精科技有限公司 | Electrical connector |
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| CN204271328U (en) * | 2014-11-07 | 2015-04-15 | 深圳市正耀科技有限公司 | A kind of connector body |
| CN204333399U (en) * | 2014-12-19 | 2015-05-13 | 刘红梅 | Can the electric power plug connector of just anti-plug |
| CN105226437A (en) * | 2015-10-26 | 2016-01-06 | 康瑞电子(深圳)有限公司 | Dual-face inserting Micro USB Type B male seat connector |
| CN206271945U (en) * | 2016-11-18 | 2017-06-20 | 电连技术股份有限公司 | A kind of electric connector with new intershield part |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204271328U (en) * | 2014-11-07 | 2015-04-15 | 深圳市正耀科技有限公司 | A kind of connector body |
| CN204333399U (en) * | 2014-12-19 | 2015-05-13 | 刘红梅 | Can the electric power plug connector of just anti-plug |
| CN105226437A (en) * | 2015-10-26 | 2016-01-06 | 康瑞电子(深圳)有限公司 | Dual-face inserting Micro USB Type B male seat connector |
| CN206271945U (en) * | 2016-11-18 | 2017-06-20 | 电连技术股份有限公司 | A kind of electric connector with new intershield part |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742571A (en) * | 2018-11-22 | 2019-05-10 | 昆山捷皇电子精密科技有限公司 | A kind of anti-short circuit T ype-C female |
| CN109742571B (en) * | 2018-11-22 | 2024-04-09 | 东台润田精密科技有限公司 | Prevent female head of short circuit Type-C |
| CN114678712A (en) * | 2022-03-01 | 2022-06-28 | 深圳市步步精科技有限公司 | Electrical connector |
| CN114678712B (en) * | 2022-03-01 | 2024-03-29 | 深圳市步步精科技有限公司 | Electric connector |
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