CN110137721B - Electric connector structure - Google Patents
Electric connector structure Download PDFInfo
- Publication number
- CN110137721B CN110137721B CN201810134565.7A CN201810134565A CN110137721B CN 110137721 B CN110137721 B CN 110137721B CN 201810134565 A CN201810134565 A CN 201810134565A CN 110137721 B CN110137721 B CN 110137721B
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- shell
- tongue plate
- positioning grooves
- 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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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
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- 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
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- 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
- H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
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- 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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
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- 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
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention relates to an electric connector structure, which comprises a printed circuit board and a metal shell, wherein one side of the printed circuit board is provided with a tongue plate, the other side of the printed circuit board is provided with a thickening block, at least one of the lower surface and the upper surface of the tongue plate is electrically provided with a plurality of first conducting parts, the bottom surface of the thickening block is electrically provided with a plurality of second conducting parts, and the bottom surface of the thickening block is lower than the lower surface of the tongue plate, so that a height difference is generated between the bottom surface of the thickening block and the lower surface of the tongue plate; the metal shell is sleeved on the tongue plate and wraps the periphery of the tongue plate; therefore, the assembly of the known root-shaped conductive terminal is replaced, so that the aim of omitting the operations of alignment and insertion is achieved, and the electric connector structure has the advantages of simple production and assembly steps, time saving and labor saving.
Description
Technical Field
The present invention relates to an electrical connector for outputting or inputting power or signals, and more particularly, to an electrical connector structure.
Background
In recent years, with the popularization of Universal Serial Bus (USB) connectors, various electronic devices such as personal computers, tablet computers, and smart phones are equipped with USB connectors, so that users can easily transmit data through USB interfaces, and USB connectors are rapidly spreading around the lives of the general public.
However, the conventional USB connector has a plurality of root-shaped conductive terminals, and the plurality of root-shaped conductive terminals are inserted and mounted on the circuit board, but some types of USB connectors (e.g. USB Type-C) have complicated functions and have an excessive number of conductive terminals, and the excessive number of conductive terminals are aligned, inserted and soldered one by one, which is prone to cause problems of complicated assembly steps and time consumption.
In view of the above, the present inventors have made extensive studies and studies to solve the above problems in combination with the application of the above prior art, and as a result, the present inventors have developed the present invention.
Disclosure of Invention
The invention provides an electric connector structure, which utilizes a printed circuit board part with a thickening block, wherein the bottom surface of the thickening block is electrically provided with a plurality of second guide connecting parts, thereby replacing the assembly of a known root-shaped conductive terminal, achieving the purposes of omitting operations such as contraposition, insertion and the like, and leading the electric connector structure to have the advantages of simple production and assembly steps, time saving and labor saving.
In an embodiment of the present invention, the present invention provides an electrical connector structure, including: the printed circuit board is provided with a tongue plate on one side and a thickening block on the other side, at least one of the lower surface and the upper surface of the tongue plate is electrically provided with a plurality of first conducting parts, the bottom surface of the thickening block is electrically provided with a plurality of second conducting parts, and the bottom surface of the thickening block is lower than the lower surface of the tongue plate, so that a height difference is generated between the bottom surface of the thickening block and the lower surface of the tongue plate; and the metal shell is sleeved on the tongue plate and wraps the periphery of the tongue plate.
Based on the above, the shielding shell is sleeved on the metal shell and wraps around the metal shell, so that a shielding layer is formed on the outer peripheries of the tongue plate and the metal shell, and further, signal Loss (Loss) of a transmitted high-frequency signal is avoided, and the situation that the signal of the Type-C electric connector is attenuated in the transmission process is prevented.
Based on the above, two clearance openings are formed between the rear end portion of the metal shell and the upper and lower surfaces of the first printed circuit board, and at least one of the upper shell wall and the lower shell wall of the shielding shell extends and is bent to form a shielding sheet for shielding the clearance openings, so as to enhance the shielding capability of the shielding shell.
Drawings
Fig. 1 is an exploded perspective view of the electrical connector structure of the present invention.
Fig. 2 is a perspective assembly view of the electrical connector structure of the present invention.
Fig. 3 is a perspective assembly view of another angle of the electrical connector structure of the present invention.
Fig. 4 is a schematic diagram of the usage status of the electrical connector structure of the present invention.
Fig. 5 is a schematic view of another usage status of the electrical connector structure of the present invention.
Fig. 6 is a schematic cross-sectional view of an electrical connector structure of the present invention.
Symbolic illustration in the drawings:
10 an electrical connector structure; 1 a printed circuit board; 11 tongue plate; 111 lower surface; 112 upper surface; 12 thickening blocks; 121 a bottom surface; 13 a first lead-in part; 14 a second lead-in part; 15 a first printed circuit board; 151 connecting surface; 16 a second printed circuit board; 2 a metal shell; 21 a rear end portion; 211 a clearance opening; 22 a protruding piece; 221 an end edge; 23 a top wall; 24 a bottom wall; 25 supporting feet; 251 an abutting piece; 26, a socket; 27 recessing the trench; 3 shielding the housing; 31 an upper housing wall; 32 a lower shell wall; 33 a cover sheet; 34 salient points; 4, assembling structure; 41 shell positioning groove; 42 a plate positioning groove; 43 inserting and connecting the positioning groove; 6, positioning feet; 100 circuit boards; 101 an electrical connection; 102 inserting and fixing holes; h height difference.
Detailed Description
The following detailed description and technical contents of the present invention will be described with reference to the drawings, which are provided for illustrative purposes only and are not intended to limit the present invention.
Referring to fig. 1 to 6, an electrical connector structure 10 of the present invention mainly includes a printed circuit board 1, a metal shell 2, a shielding shell 3 and a set of connecting structures 4.
As shown in fig. 1 to 6, one side of the printed circuit board 1 has a tongue plate 11, the other side has a thickened block 12, at least one of the lower surface 111 and the upper surface 112 of the tongue plate 11 is electrically provided with a plurality of first conductive portions 13, the bottom surface 121 of the thickened block 12 is electrically provided with a plurality of second conductive portions 14, and the bottom surface 121 of the thickened block 12 is lower than the lower surface 111 of the tongue plate 11, so that a height difference h is generated between the bottom surface 121 of the thickened block 12 and the lower surface 111 of the tongue plate 11. Wherein, each first conductive connection portion 13 and each second conductive connection portion 14 are electrically connected to each other.
In detail, the printed circuit board 1 includes a first printed circuit board 15 and a second printed circuit board 16, wherein one side of the first printed circuit board 15 forms the tongue plate 11, the bottom of the other side has a connecting surface 151, and the thickened block 12 is formed by the second printed circuit board 16 fixed on the connecting surface 151. The first printed circuit board 15 and the second printed circuit board 16 are respectively a printed circuit board conforming to the USB Type-C specification, so that the electrical connector structure 10 is a Type-C electrical connector, each first conductive portion 13 is disposed on at least one of the lower surface 111 and the upper surface 112 in a covering manner, and each second conductive portion 14 is disposed on the bottom surface 121 of the thickening block 12 in a covering manner.
As shown in fig. 1 to 6, the metal shell 2 is sleeved on the tongue plate 11 and wraps around the tongue plate 11, two clearance openings 211 are formed between the rear end portion 21 of the metal shell 2 and the upper and lower surfaces of the first printed circuit board 15, two protruding pieces 22 extend from the left and right sides of the rear section of the metal shell 2, and each protruding piece 22 has an end edge 221.
In addition, the metal shell 2 has a top wall 23 and a bottom wall 24 opposite to each other, the top wall 23 and the bottom wall 24 extend to form a plurality of supporting legs 25, the plurality of supporting legs 25 respectively abut against the upper and lower surfaces 112, 111 of the tongue plate 11, the metal shell 2 has a socket 26, each supporting leg 25 extends towards the socket 26 and is bent to form a supporting piece 251, and each supporting piece 251 abuts against the tongue plate 11. Wherein, the top wall 23 and the bottom wall 24 of the metal shell 2 are respectively provided with a recess groove 27.
As shown in fig. 1 to 6, the shielding shell 3 is sleeved on the metal shell 2 and surrounds the metal shell 2, the shielding shell 3 has an upper shell wall 31 and a lower shell wall 32, at least one of the upper shell wall 31 and the lower shell wall 32 extends and is bent to form a shielding sheet 33 for shielding the clearance 211. In the embodiment, the upper housing wall 31 and the lower housing wall 32 are extended and bent to form two shielding sheets 33, and each shielding sheet 33 shields each gap 211, but not limited thereto.
In addition, two protruding points 34 are provided on the upper casing wall 31 and the lower casing wall 32 of the shielding housing 3 protruding from the outside to the inside, that is, the two protruding points 34 protrude from the inner walls of the upper casing wall 31 and the lower casing wall 32, respectively, and each protruding point 34 is embedded and fixed in each recessed groove 27.
As shown in fig. 1 to 5, the assembling structure 4 is disposed on the metal shell 2 and the shielding shell 3, the first printed circuit board 15 and the metal shell 2 are positioned by the assembling structure 4, and the first printed circuit board 15 and the shielding shell 3 are positioned by the assembling structure 4.
As described in detail below, the assembly structure 4 includes a plurality of housing positioning grooves 41, a plurality of board positioning grooves 42, and a plurality of insertion positioning grooves 43, the plurality of housing positioning grooves 41 are formed on the metal shell 2, the plurality of board positioning grooves 42 are formed on the first printed circuit board 15, the plurality of insertion positioning grooves 43 are formed on the shielding shell 3, the housing positioning grooves 41 of the metal shell 2 and the board positioning grooves 42 of the first printed circuit board 15 are inserted into each other to be positioned, so that the side of the first printed circuit board 15 is inserted into the housing positioning grooves 41 of the metal shell 2 to be positioned, and the side of the first printed circuit board 15 is also inserted into the insertion positioning grooves 43 of the shielding shell 3 to be positioned.
In addition, the number of the case positioning grooves 41, the number of the plate positioning grooves 42, and the number of the inserting positioning grooves 43 are two, each case positioning groove 41 is formed and molded from the middle of the end edge 221 of each protruding piece 22 of the metal shell 2, two plate positioning grooves 42 are disposed on opposite sides of the tongue plate 11, and two inserting positioning grooves 43 are formed and molded from the middle of the left and right sides of the rear section of the shield shell 3.
As shown in fig. 1 to fig. 6, the shielding housing 3 of the present embodiment has two positioning pins 6 extending towards the left and right sides, the circuit board 100 is provided with a plurality of electrical connection portions 101 and two insertion holes 102 in a covering manner, each second connection portion 14 of the bottom surface 121 of the thickening block 12 is electrically connected to each electrical connection portion 101 in a welding manner, and the two positioning pins 6 are inserted into the two insertion holes 102, so that the electrical connector structure 10 is mounted and electrically connected to the circuit board 100.
As shown in fig. 1 to 6, in the using state of the electrical connector structure 10 of the present invention, the printed circuit board 1 has the thickened block 12, the bottom surface 121 of the thickened block 12 is electrically provided with the plurality of second guiding connection portions 14, because the thickness of the thickened block 12 mainly fills the space between the first printed circuit board 15 and the circuit board 100, each second guiding connection portion 14 of the bottom surface 121 of the thickened block 12 is reliably contacted with each electrical connection portion 101, thereby replacing the known root-shaped conductive terminal assembly, so as to achieve the purpose of omitting the operations of alignment and insertion, and the electrical connector structure 10 has the advantages of simple production and assembly steps, time saving and labor saving.
In addition, the shielding shell 3 is sleeved on the metal shell 2 and wraps around the metal shell 2, so that a shielding layer is formed on the tongue plate 11 and the outer periphery of the metal shell 2, and further, signal Loss (Loss) of a transmitted high-frequency signal is avoided, and the situation that the signal of the Type-C electric connector is attenuated in the transmission process is prevented.
Furthermore, two gaps 211 are formed between the rear end 21 of the metal shell 2 and the upper and lower surfaces of the first printed circuit board 15, and at least one of the upper shell wall 31 and the lower shell wall 32 of the shielding shell 3 extends and is bent with a shielding sheet 33 for shielding the gaps 211, so as to enhance the shielding capability of the shielding shell 3.
The first printed circuit board 15 and the metal shell 2 are positioned by the assembling structure 4, the first printed circuit board 15 and the shielding shell 3 are positioned by the assembling structure 4, and the salient points 34 of the shielding shell 3 are embedded in the concave grooves 27 of the metal shell 2, so that the first printed circuit board 15 and the metal shell 2, the first printed circuit board 15 and the shielding shell 3, and the shielding shell 3 and the metal shell 2 are firmly assembled together, and the assembling structural strength of the electrical connector structure 10 is further improved.
In addition, two shell positioning grooves 41 are formed in the middle of the left side and the right side of the rear section of the metal shell 2, two plate positioning grooves 42 are formed in the two opposite sides of the tongue plate 11, two inserting positioning grooves 43 are formed in the middle of the left side and the right side of the rear section of the shielding shell 3, each shell positioning groove 41 of the metal shell 2 and each plate positioning groove 42 of the first printed circuit board 15 are oppositely inserted to be positioned, the side edge of the first printed circuit board 15 is inserted to be positioned with each other corresponding to the two inserting positioning grooves 43 of the shielding shell 3, the tongue plate 11 is stably and accurately kept in the middle position of the metal shell 2, and corresponding inserting of a USB Type-C male connector is facilitated.
It should be understood that the above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes made by using the contents of the present specification or drawings are all included in the scope of the present invention.
Claims (9)
1. An electrical connector structure, comprising:
the printed circuit board is provided with a tongue plate on one side and a thickening block on the other side, at least one of the lower surface and the upper surface of the tongue plate is electrically provided with a plurality of first conducting parts, the bottom surface of the thickening block is electrically provided with a plurality of second conducting parts, and the bottom surface of the thickening block is lower than the lower surface of the tongue plate, so that a height difference is generated between the bottom surface of the thickening block and the lower surface of the tongue plate; and
the metal shell is sleeved on the tongue plate and wraps the tongue plate;
the printed circuit board comprises a first printed circuit board and a second printed circuit board, wherein the tongue plate is formed on one side of the first printed circuit board, a connecting surface is formed at the bottom of the other side of the first printed circuit board, and the thickening block is formed by the second printed circuit board fixedly connected to the connecting surface.
2. The electrical connector structure of claim 1, further comprising a shielding shell and an assembling structure, wherein the shielding shell is sleeved on the metal shell and surrounds the metal shell, the assembling structure is arranged on the metal shell, and the first printed circuit board and the metal shell are positioned with each other through the assembling structure.
3. The electrical connector structure of claim 2, wherein two gaps are formed between the rear end of the metal shell and the upper and lower surfaces of the first printed circuit board, the shielding shell has an upper shell wall and a lower shell wall, at least one of the upper shell wall and the lower shell wall extends and is bent with a shielding sheet for shielding the gaps.
4. The electrical connector structure as claimed in claim 2 or 3, wherein the assembling structure comprises a plurality of housing positioning grooves formed on the metal housing, and the side edges of the first printed circuit board are inserted into the housing positioning grooves of the metal housing to be positioned with each other.
5. The electrical connector structure of claim 4, wherein said assembly structure further comprises a plurality of board positioning grooves formed in said first printed circuit board, and each of said housing positioning grooves of said metal housing and each of said board positioning grooves of said first printed circuit board are inserted into each other to be positioned.
6. The electrical connector structure of claim 5, wherein the assembly structure further comprises a plurality of insertion positioning grooves formed in the shielding housing, and the sides of the first printed circuit board are inserted into the insertion positioning grooves of the shielding housing to be positioned with each other.
7. The electrical connector structure as claimed in claim 6, wherein the number of the housing positioning grooves, the number of the board positioning grooves and the number of the inserting positioning grooves are two, two protruding pieces extend from the left and right sides of the rear section of the metal housing, each protruding piece has a terminal edge, each housing positioning groove is formed in the middle of each terminal edge, the two board positioning grooves are arranged on the opposite sides of the tongue plate, and the two inserting positioning grooves are formed in the middle of the left and right sides of the rear section of the shielding shell.
8. The electrical connector structure according to claim 7, wherein the metal shell has a socket and a top wall and a bottom wall opposite to each other, the top wall and the bottom wall extend with a plurality of supporting legs, each supporting leg extends toward the socket and is bent with a supporting piece, and the supporting pieces respectively abut against the upper surface and the lower surface of the tongue plate.
9. The electrical connector structure of claim 8, wherein said top wall and said bottom wall of said metal shell each have a recessed groove, said shielding shell has two raised bumps protruding from outside to inside, and each of said raised bumps is embedded in each of said recessed grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134565.7A CN110137721B (en) | 2018-02-09 | 2018-02-09 | Electric connector structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134565.7A CN110137721B (en) | 2018-02-09 | 2018-02-09 | Electric connector structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110137721A CN110137721A (en) | 2019-08-16 |
| CN110137721B true CN110137721B (en) | 2021-01-26 |
Family
ID=67567962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810134565.7A Active CN110137721B (en) | 2018-02-09 | 2018-02-09 | Electric connector structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110137721B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112864663B (en) * | 2020-12-29 | 2022-10-04 | 上海摩勤智能技术有限公司 | HDMI connector and electronic equipment with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2577075B1 (en) * | 1985-02-07 | 1987-04-24 | Telemecanique Electrique | MIXED CONNECTION TERMINAL FOR A PRINTED CIRCUIT AND ELECTRONIC APPARATUS PROVIDED WITH SUCH A TERMINAL |
| DE8905434U1 (en) * | 1989-04-28 | 1990-08-23 | Siemens AG, 1000 Berlin und 8000 München | PCB connectors for surface mounting |
| CN2665960Y (en) * | 2003-09-06 | 2004-12-22 | 富士康(昆山)电脑接插件有限公司 | Electric connector assembly |
| TWM251321U (en) * | 2003-09-12 | 2004-11-21 | Hon Hai Prec Ind Co Ltd | Electrical connector assembly |
| CN2800515Y (en) * | 2005-04-08 | 2006-07-26 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN201230069Y (en) * | 2008-04-30 | 2009-04-29 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN101752695B (en) * | 2008-11-28 | 2012-03-21 | 倚天资讯股份有限公司 | Electronic card connector and electronic equipment with same |
| CN102280732B (en) * | 2010-06-10 | 2014-01-29 | 上海莫仕连接器有限公司 | Electric connector |
| CN202111287U (en) * | 2011-05-25 | 2012-01-11 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN102957013A (en) * | 2011-08-18 | 2013-03-06 | 昆山联滔电子有限公司 | Cable plug connector, board terminal socket connector and connector component |
| CN202206683U (en) * | 2011-09-22 | 2012-04-25 | 深圳市正耀科技有限公司 | Modified package assembly of USB (Universal Serial Bus) flash disk |
| CN103944007B (en) * | 2013-01-22 | 2016-08-10 | 富士康(昆山)电脑接插件有限公司 | Electric connector and assemble method thereof |
| CN104051920B (en) * | 2013-12-16 | 2016-04-20 | 陈碇祈 | The interconnecting module of USB electric connector |
| CN204361414U (en) * | 2014-01-15 | 2015-05-27 | 富士康(昆山)电脑接插件有限公司 | Socket connector, pin connector and combination thereof |
| CN204361412U (en) * | 2014-05-06 | 2015-05-27 | 富士康(昆山)电脑接插件有限公司 | Socket connector |
| CN104319522A (en) * | 2014-10-30 | 2015-01-28 | 昆山思瑞奕电子有限公司 | Electric coupler and forming method thereof |
| CN204577703U (en) * | 2015-05-15 | 2015-08-19 | 唐宗萍 | The positive and negative plug-and-socket connector of the USB that anti-signal leaks |
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| CN205565184U (en) * | 2016-02-17 | 2016-09-07 | 巧连科技股份有限公司 | Electric connector and hyoplastron reinforcement structure thereof |
| CN106684611A (en) * | 2017-01-18 | 2017-05-17 | 启东乾朔电子有限公司 | Electric connector and manufacturing method thereof |
-
2018
- 2018-02-09 CN CN201810134565.7A patent/CN110137721B/en active Active
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| Publication number | Publication date |
|---|---|
| CN110137721A (en) | 2019-08-16 |
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