CN104218394B - Plug electric connector - Google Patents
Plug electric connector Download PDFInfo
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- CN104218394B CN104218394B CN201410368543.9A CN201410368543A CN104218394B CN 104218394 B CN104218394 B CN 104218394B CN 201410368543 A CN201410368543 A CN 201410368543A CN 104218394 B CN104218394 B CN 104218394B
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- plug electrical
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Abstract
A plug electrical connector comprising: an insulating body, two terminal sets, two grounding plates, a shielding shell, a cable, an upper shielding cover, a lower shielding cover and an outer protecting shell. Each terminal set has a plurality of conductive terminals. The two grounding plates are arranged on the insulating body. The cable has a plurality of coaxial lines connected with the conductive terminals in the terminal set, and the braid in each coaxial line is electrically connected with the grounding plate through welding or other fixing modes, so that high-frequency noise between the conductive terminals and the coaxial lines is reduced, thereby improving the stability and efficiency of high-frequency signal transmission.
Description
Technical Field
The present invention relates to a plug electrical connector, and more particularly, to a plug electrical connector capable of simultaneously filtering noise on all coaxial cables through a grounding plate to avoid high frequency signal interference between high frequency signal terminals and signal interference of the plug electrical connector to other nearby electronic devices.
Background
The electric connector is a common electronic component on the electronic device, and can be mutually connected with the matching electric connector on other electronic devices so as to transmit signals and power between the two electronic devices. Refer to chinese patent No. CN223012819, which discloses an electrical connector having an insulative housing, a conductive terminal, a metal housing and a cable. The cable has a plurality of coaxial lines and a ground wire, each coaxial line has a core wire, an insulating inner cover and a braid. The core wire is sequentially coated with an insulating inner cover and a braiding layer and is electrically connected with the conductive terminal. In addition, the braid and the ground wire are welded to the inner surface of the metal shell, and the electric connector obtains a grounding effect through welding the welding mode. However, the structure of welding the braid and the ground wire of the cable to the metal shell requires a process of pulling out a part of the braid on each core wire and then welding the part to the inner surface of the metal shell, which is complicated and difficult to manufacture.
Another electrical connector is disclosed in chinese patent publication No. CN201601302, which includes an insulative housing, a plurality of conductive terminals, a plurality of coaxial cables, and a cover. Each coaxial cable has an inner conductor, an inner insulating layer, a metal braid, and an outer insulating layer. However, the electrical connector does not indicate how to perform grounding for the coaxial cable, and in the absence of grounding structure, the conductive terminals will generate signal interference between each other, which reduces the stability and efficiency of high frequency signal transmission.
Disclosure of Invention
The present inventors have improved the defects and disadvantages of the conventional electrical connector, and have further created a plug electrical connector, in view of the problems of defects and poor grounding effect caused by complicated manufacturing procedures of the conventional electrical connector.
The present invention is directed to a plug electrical connector, which filters noise on all coaxial cables through a grounding plate to avoid high frequency signal interference between high frequency signal terminals and signal interference of the plug electrical connector to other nearby electronic devices.
To achieve the above object, the plug electrical connector includes:
the insulation body is provided with a fixed base and an extension plate, wherein the fixed base is provided with a top plate, a bottom plate and two side walls which are arranged between the top plate and the bottom plate, the front end of the fixed base is provided with an inserting space which is arranged among the top plate, the bottom plate and the two side walls, and the extension plate protrudes backwards from the rear end of the fixed base;
the two terminal groups are point-symmetrical by taking the central point of the plugging space as a symmetry center, are respectively arranged on the inner surface of the top plate and the inner surface of the bottom plate of the fixed base of the insulating body, are respectively provided with a plurality of conductive terminals, each conductive terminal is respectively provided with a fixed section, an electric contact section extending forwards from the fixed section and a welding section arranged on the top surface or the bottom surface of the extension plate, and the sum stage is arranged on the top surface or the bottom surface of the extension plate, wherein the electric contact sections of the two terminal groups are vertically corresponding, and the welding sections of the two terminal groups are vertically corresponding;
two grounding plates respectively disposed on the top and bottom surfaces of the extension plate of the insulating body and connected to each other;
a shielding shell, wherein an accommodating space is formed on the shielding shell in a front-back penetrating way so as to accommodate the insulating body; and
the cable is electrically connected with the two terminal groups, the cable is provided with two wire groups which are respectively arranged on the top surface and the bottom surface of the extension plate, respectively correspond to the two terminal groups and respectively correspond to the two grounding plates, each wire group is provided with a plurality of coaxial wires, each coaxial wire is respectively provided with a conductive core wire, an inner insulating layer and a braiding layer, the conductive core wires are electrically connected with the corresponding conductive terminal welding sections, the inner insulating layer coats the conductive core wires, and the braiding layer coats the inner insulating layer and is electrically connected with the corresponding grounding plates.
By the technical means, the two grounding plates of the high-speed plug electric connector are fixed and electrically connected with all the braiding layers of the coaxial line in a welding or other mode, and the welding section of the conductive terminal is also fixed and electrically connected with the conductive core wire of the coaxial line in a welding or other mode. Therefore, the grounding sheet effectively grounds all coaxial lines, and signal interference among the coaxial lines or signal interference among the conductive terminals is avoided. In addition, the insulating body and the shielding shell are in an up-down symmetrical state, the two terminal groups are in point symmetry with the center point of the plugging space of the insulating body as a symmetrical center, and the definition of the conductive terminals of the two terminal groups is the same, so that the high-speed plug electric connector can be plugged in a forward plugging mode or a reverse plugging mode without any foolproof measures when being plugged into a corresponding socket connector.
The rear end of the shielding shell is extended with a connecting sheet, and the tail end of the connecting sheet is electrically connected with at least one grounding sheet.
The top and bottom surfaces of the extension board are respectively provided with an assembly groove; the two grounding plates are respectively arranged in the two assembly grooves.
Two ends of each grounding piece are respectively bent to form a connecting part for connecting with the connecting part of the other grounding piece.
An upper through groove is formed on the top plate of the fixed base of the insulating body in a penetrating way, and a lower through groove is formed on the bottom plate in a penetrating way; an upper spring plate seat and a lower spring plate seat are respectively arranged on the outer surface of the top plate and the outer surface of the bottom plate of the fixed base, a plurality of upper tightening spring plates penetrating through the upper penetrating groove and extending into the plugging space are formed on the upper spring plate seat, and a plurality of lower tightening spring plates penetrating through the lower penetrating groove and extending into the plugging space are formed on the lower spring plate seat.
The plug electric connector further comprises an upper shielding cover and a lower shielding cover, wherein the upper shielding cover and the lower shielding cover are respectively covered on the extension plate, the welding section of the conductive terminal and the tail end of the coaxial line in an up-down clamping mode.
Two sides of the upper shielding cover are respectively penetrated and formed with a fixing hole; two sides of the lower shielding cover are respectively provided with a fixing fastener to be respectively buckled on the fixing holes.
Each coaxial line further has an outer insulating layer covering the braid.
The plug electrical connector further comprises an outer protective shell covering the extension plate, the upper shield cover, the lower shield cover and the cable end.
The terminal sets are respectively arranged on the top plate and the bottom plate of the fixed base of the insulating body in an insert-molding mode.
The fixed base has a top plate with a plurality of upper terminal slots formed on its inner surface for receiving a plurality of conductive terminals of one terminal set, and a bottom plate with a plurality of lower terminal slots formed on its inner surface for receiving a plurality of conductive terminals of the other terminal set.
Drawings
Fig. 1 is a perspective view of embodiment 1 of the present invention.
Fig. 2 is a perspective view of embodiment 1 of the present invention with the outer protective case omitted.
Fig. 3 is a perspective view of embodiment 1 of the present invention, omitting the outer protective case, the upper shield cover and the lower shield cover.
Fig. 4 is another perspective view of embodiment 1 of the present invention, omitting the outer protective case, the upper shielding cover and the lower shielding cover.
Fig. 5 is an exploded perspective view of embodiment 1 of the present invention with the outer protective case omitted.
Fig. 6 is another exploded perspective view of embodiment 1 of the present invention with the outer protective case omitted.
Fig. 7 is a front view of embodiment 1 of the present invention.
Fig. 8 is a side view of embodiment 2 of the present invention, omitting the outer protective case, the upper shield cover and the lower shield cover.
Fig. 9 is a front cross-sectional view of the present invention.
Fig. 10 is a side sectional view of the outer protective case omitted.
Symbol description
10 insulation body 100 plug-in space
11 fixed base 111 roof
1110 upper terminal groove 112 bottom plate
1120 lower terminal slot 113 side wall
115 upper through groove 116 lower through groove
12 extension board
Spring plate seat on 121 assembling groove 15
151 upper pressing spring 16 lower spring seat
161 lower pressing spring piece
20 conductive terminal 21 fixing section
22 electrical contact section 23 soldering section
30 grounding piece 31 connecting part
40. 40a shielding shell 400 accommodation space
47 connecting piece
50 upper shield cover 51 fixing hole
60 lower shielding cover 61 fixing fastener
70 outer protective shell
80 cable
90 coaxial line 91 conductive core wire
92 inner insulating layer 93 braid
94 an outer insulating layer.
Description of the embodiments
Referring to fig. 1-2, embodiment 1 of the plug electrical connector of the present invention may be a universal serial bus (Universal Serial Bus) Type C connector, which complies with the version 0.98C of the universal connector association specification Universal Serial Bus Type-C Cable and Connector Specification.
Referring to fig. 3 to 6 and 10, the plug electrical connector of the present invention includes: an insulating body 10, two terminal sets, two grounding plates 30, a shield shell 40, a cable 80, an upper shield cover 50, a lower shield cover 60, and an outer protective shell 70.
The insulating body 10 has a fixing base 11 and an extension board 12, the fixing base 11 has a top board 111, a bottom board 112 and two opposite side walls 113 disposed between the top board 111 and the bottom board 112, and a plugging space 100 is formed between the top board 111, the bottom board 112 and the two side walls 113 at the front end of the fixing base 11. Further, the fixed base 11 has a plurality of upper terminal grooves 1110 formed on the inner surface of the top plate 111 and a plurality of lower terminal grooves 1120 formed on the inner surface of the bottom plate 112. The extension plate 12 protrudes rearward from the rear end of the fixing base 11, and an assembly groove 121 is formed on each of the top and bottom surfaces of the extension plate 12. Further, an upper through groove 115 communicating with the insertion space 110 is formed in the top plate 111 of the fixed base 11, and a lower through groove 116 communicating with the insertion space 110 is formed in the bottom plate 112; an upper spring plate seat 15 and a lower spring plate seat 16 are respectively arranged on the outer surface of the top plate 111 and the outer surface of the bottom plate 112 of the fixed base 11, a plurality of upper spring plates 151 penetrating through the upper penetrating groove 115 and extending into the plugging space 100 are formed on the upper spring plate seat 15, and a plurality of lower spring plates 161 penetrating through the lower penetrating groove 116 and extending into the plugging space 100 are formed on the lower spring plate seat 16.
Referring to fig. 7, the two terminal sets are point-symmetrical with each other with the center point of the plugging space 110 as the symmetry center. The point symmetry means that the two terminal groups are rotated 180 degrees based on the symmetry center as the rotation center, and the rotated two terminal groups can be completely overlapped with the two terminal groups before rotation. Through the point symmetrical terminal set arrangement mode, the high-speed plug connector can be smoothly inserted into the corresponding socket connector under the condition of rotating 180 degrees so as to normally execute high-speed signal transmission operation. The two terminal sets are respectively disposed on the inner surface of the top plate 111 and the inner surface of the bottom plate 112 of the fixed base 11 of the insulating body 10.
Each terminal set has a plurality of conductive terminals 20. The plurality of conductive terminals 20 of one terminal group are respectively arranged in the upper terminal grooves 1110 of the top plate 111 of the fixed base 11, and the conductive terminals 20 of the other terminal group are respectively arranged in the lower terminal grooves 1120 of the bottom plate 112 of the fixed base 11. Each conductive terminal 20 has a fixing section 21, an electrical contact section 22 and a soldering section 23. The fixing section 21 is disposed on the top plate 111 or the bottom plate 112 of the fixing base, the electrical contact section 22 extends forward from the fixing section 21 into the plugging space 100, and the soldering section 23 extends rearward from the fixing section 21 and is disposed on the top surface or the bottom surface of the extension plate 12. The electrical contact sections 22 of the two terminal sets are vertically corresponding, and the soldering sections 23 of the two terminal sets are vertically corresponding. In addition, in the preferred embodiment, each of the terminal sets may be disposed in the top plate 101 and the bottom plate 102 of the fixing base 11 of the insulating body 10 in a buried injection molding (insert-molding) manner.
The two grounding plates 30 are respectively disposed in the assembly grooves 121 on the top and bottom surfaces of the extension plate 12 of the insulating body 10 and are connected to each other. Each of the grounding plates 30 has a connecting portion 31 formed at each end thereof by bending, so as to connect the connecting portion 31 of the other grounding plate 30 by welding or other fixing means. The two grounding plates 30 are mainly responsible for filtering out high frequency noise or static electricity from the conductive terminals 20 or the cables 80.
The shielding shell 40 is formed with a receiving space 400 for receiving the insulating body 10.
The cable 80 is disposed on the insulating body 10 and electrically connected to the two terminal sets, the cable 80 has two wire sets, the two wire sets are respectively disposed on the top surface and the bottom surface of the extension board 12, respectively correspond to the two terminal sets, and respectively correspond to the two grounding plates 30, each wire set has a plurality of coaxial wires 90, each coaxial wire 90 has a conductive core wire 91, an inner insulating layer 92, a braid 93 and an outer insulating layer 94, the conductive core wire 91 is electrically connected to the corresponding soldering section 23 of the conductive terminal 20, the inner insulating layer 92 coats the conductive core wire 91, and the braid 93 coats the inner insulating layer 92 and is electrically connected to the corresponding grounding plate 30. Further, the outer insulating layer 94 covers the braid 93.
The upper shield cover 50 and the lower shield cover 60 are respectively covered on the extension plate 12, the soldering section 23 of the conductive terminal 20 and the end of the coaxial line 90 in an up-down clamping manner. In addition, a fixing hole 51 is formed on both sides of the upper shielding cover 50, and a fixing fastener 61 is formed on both sides of the lower shielding cover 60 to be fastened to the fixing hole 51.
The outer protective shell 70 is wrapped over the extension plate 12, the upper shield cover 50, the lower shield cover 60, and the ends of the cable 80.
Referring to fig. 8, in embodiment 2 of the present invention, a connecting piece 47 extends from the rear end of the shielding shell 40a, and the end of the connecting piece 47 is electrically connected to at least one of the grounding pieces 30 by welding or other means, so that static electricity or other noise on the grounding piece 30 can be led out from the shielding shell 40 through the connecting piece 47, and further interference of high-frequency signals is avoided.
By the technical means, the plug electric connector has the following advantages:
1. the two grounding tabs 30 of the high-speed plug electrical connector are soldered or otherwise fixed to and electrically connected with the braid 93 of all coaxial wires 90, and the solder segments 23 of the conductive terminals 20 are soldered or otherwise fixed to and electrically connected with the conductive core wires 91 of the coaxial wires 90. Thus, the grounding plate 30 effectively grounds all the coaxial lines 90, so as to avoid signal interference between the coaxial lines 90 or signal interference between the conductive terminals 20.
2. Static electricity or other noise on the grounding plate 30 can be conducted out from the shielding shell 40 through the connection plate 47 of the shielding shell 40, so as to further avoid the interference of high frequency signal.
3. In addition, the present invention is a USB Type C connector, in which the insulative housing 10 and the shielding shell 40 are vertically symmetrical, and the two terminal sets are point symmetrical with each other with the center point of the plugging space 110 of the insulative housing 10 as the center of symmetry, so that the high-speed plug electrical connector can be plugged in a forward plug manner or a reverse plug manner without any foolproof measures when being plugged into a corresponding socket connector.
Claims (10)
1. A plug electrical connector, comprising:
the insulation body is provided with a fixed base and an extension plate, wherein the fixed base is provided with a top plate, a bottom plate and two side walls which are arranged between the top plate and the bottom plate, an inserting space which is arranged among the top plate, the bottom plate and the two side walls is formed at the front end of the fixed base, the extension plate protrudes backwards from the rear end of the fixed base, an upper penetrating groove is formed on the top plate of the fixed base of the insulation body in a penetrating way, a lower penetrating groove is formed on the bottom plate in a penetrating way, an upper spring plate seat and a lower spring plate seat are respectively arranged on the outer surface of the top plate and the outer surface of the bottom plate of the fixed base, a plurality of upper forcing spring plates which penetrate through the upper penetrating groove and extend into the inserting space are formed on the upper spring plate seat, and a plurality of lower forcing spring plates which penetrate through the lower penetrating groove and extend into the inserting space are formed on the lower spring plate seat;
the two terminal groups are in point symmetry with the central point of the plugging space as a symmetry center, are respectively arranged on the inner surface of the top plate and the inner surface of the bottom plate of the fixed base of the insulating body, are respectively provided with a plurality of conductive terminals, each conductive terminal is respectively provided with a fixed section, an electric contact section extending forwards from the fixed section and a welding section arranged on the top surface or the bottom surface of the extension plate, and the welding sections are arranged on the top surface or the bottom surface of the extension plate, wherein the electric contact sections of the two terminal groups are vertically corresponding, and the welding sections of the two terminal groups are vertically corresponding;
two grounding plates respectively disposed on the top and bottom surfaces of the extension plate of the insulating body and connected to each other;
a shielding shell, wherein an accommodating space is formed on the shielding shell in a front-back penetrating way so as to accommodate the insulating body; and
the cable is electrically connected with the two terminal groups, the cable is provided with two wire groups which are respectively arranged on the top surface and the bottom surface of the extension plate, respectively correspond to the two terminal groups and respectively correspond to the two grounding plates, each wire group is provided with a plurality of coaxial wires, each coaxial wire is respectively provided with a conductive core wire, an inner insulating layer and a braiding layer, the conductive core wires are electrically connected with the corresponding conductive terminal welding sections, the inner insulating layer coats the conductive core wires, and the braiding layer coats the inner insulating layer and is electrically connected with the corresponding grounding plates.
2. The plug electrical connector of claim 1, wherein: a connecting sheet extends from the rear end of the shielding shell, and the tail end of the connecting sheet is electrically connected with at least one grounding sheet.
3. The plug electrical connector of claim 2, wherein: the top surface and the bottom surface of the extension plate are respectively provided with an assembly groove; the two grounding plates are respectively arranged in the two assembly grooves.
4. The plug electrical connector of claim 3, wherein: two ends of each grounding piece are respectively bent to form a connecting part for connecting the connecting part of the other grounding piece.
5. The plug electrical connector of any one of claims 1 to 4, wherein: it further has an upper shield cover and a lower shield cover, which cover the extension board, the soldering section of the conductive terminal and the end of the coaxial line in an up-down clamping manner.
6. The plug electrical connector of claim 5, wherein: two sides of the upper shielding cover are respectively penetrated and formed with a fixing hole; two sides of the lower shielding cover are respectively provided with a fixing fastener to be respectively buckled on the fixing holes.
7. The plug electrical connector of any one of claims 1 to 4, wherein: each coaxial line further has an outer insulating layer covering the braid.
8. The plug electrical connector of claim 6, wherein: the plug electrical connector further includes an outer protective shell covering the extension plate, the upper shield cover, the lower shield cover and the cable end.
9. The plug electrical connector of any one of claims 1 to 4, wherein: the terminal sets are respectively arranged on the top plate and the bottom plate of the fixed base of the insulating body in an insert-molding mode.
10. The plug electrical connector of any one of claims 1 to 4, wherein: a plurality of upper terminal grooves are formed on the inner surface of the top plate of the fixed base to accommodate a plurality of conductive terminals of one terminal group, and a plurality of lower terminal grooves are formed on the inner surface of the bottom plate to accommodate a plurality of conductive terminals of the other terminal group.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368543.9A CN104218394B (en) | 2014-07-30 | 2014-07-30 | Plug electric connector |
| TW103136378A TWI593190B (en) | 2014-07-30 | 2014-10-21 | Plug electrical connector |
| TW103218677U TWM496272U (en) | 2014-07-30 | 2014-10-21 | Electrical connector of plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368543.9A CN104218394B (en) | 2014-07-30 | 2014-07-30 | Plug electric connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104218394A CN104218394A (en) | 2014-12-17 |
| CN104218394B true CN104218394B (en) | 2023-05-05 |
Family
ID=52099645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410368543.9A Active CN104218394B (en) | 2014-07-30 | 2014-07-30 | Plug electric connector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104218394B (en) |
| TW (2) | TWI593190B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069295A (en) * | 2015-10-16 | 2017-08-18 | 富士康(昆山)电脑接插件有限公司 | Plug connector |
| CN105789973B (en) * | 2016-04-28 | 2018-08-07 | 东莞市泰康电子科技有限公司 | Reinforced connector |
| CN208299151U (en) | 2018-02-09 | 2018-12-28 | 富士康(昆山)电脑接插件有限公司 | Connector assembly |
| CN112636100A (en) * | 2020-10-19 | 2021-04-09 | 立讯精密工业股份有限公司 | Electrical connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483283A (en) * | 2008-01-11 | 2009-07-15 | 住友电气工业株式会社 | Connection configuration of coaxial cable bundle |
| CN202695772U (en) * | 2012-06-14 | 2013-01-23 | 张乃千 | Double-sided contact-type connector |
| CN202772381U (en) * | 2012-07-09 | 2013-03-06 | 张乃千 | Transmission line with double-sided contact-type connector |
| CN204179377U (en) * | 2014-07-30 | 2015-02-25 | 连展科技电子（昆山）有限公司 | Plug connector |
-
2014
- 2014-07-30 CN CN201410368543.9A patent/CN104218394B/en active Active
- 2014-10-21 TW TW103136378A patent/TWI593190B/en active
- 2014-10-21 TW TW103218677U patent/TWM496272U/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483283A (en) * | 2008-01-11 | 2009-07-15 | 住友电气工业株式会社 | Connection configuration of coaxial cable bundle |
| CN202695772U (en) * | 2012-06-14 | 2013-01-23 | 张乃千 | Double-sided contact-type connector |
| CN202772381U (en) * | 2012-07-09 | 2013-03-06 | 张乃千 | Transmission line with double-sided contact-type connector |
| CN204179377U (en) * | 2014-07-30 | 2015-02-25 | 连展科技电子（昆山）有限公司 | Plug connector |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201605135A (en) | 2016-02-01 |
| TWM496272U (en) | 2015-02-21 |
| TWI593190B (en) | 2017-07-21 |
| CN104218394A (en) | 2014-12-17 |
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