CN112531417A - Transmission sheet of electric connector - Google Patents
Transmission sheet of electric connector Download PDFInfo
- Publication number
- CN112531417A CN112531417A CN201910878047.0A CN201910878047A CN112531417A CN 112531417 A CN112531417 A CN 112531417A CN 201910878047 A CN201910878047 A CN 201910878047A CN 112531417 A CN112531417 A CN 112531417A
- Authority
- CN
- China
- Prior art keywords
- plastic plate
- metal plate
- protrusion
- plate
- plastic
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 229920003023 plastic Polymers 0.000 claims abstract description 69
- 239000004033 plastic Substances 0.000 claims abstract description 69
- 239000002184 metal Substances 0.000 claims abstract description 56
- 238000012546 transfer Methods 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 235000012431 wafers Nutrition 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
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
- H01R13/648—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
- H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
- H01R13/6586—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules
-
- 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
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6473—Impedance matching
-
- 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]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/6597—Specific features or arrangements of connection of shield to conductive members the conductive member being a contact of the connector
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a transmission sheet of an electric connector, which comprises: an insulating frame; a plurality of terminals arranged in a row and fixed to the insulating frame; and a shield disposed at one side of the insulating frame; wherein the shield includes: a metal plate; a plastic plate covering the metal plate; and the conductive layer covers the plastic plate. The arrangement that the shielding part combines the plastic plate and the metal plate ensures that the shielding part has the rigidity of metal and the plasticity of plastic, thereby increasing the applicability of structural application.
Description
Technical Field
The present invention relates to an electrical connector, and more particularly, to a transmission sheet of an electrical connector.
Background
The transmission sheet adopted by the existing electric connector comprises a terminal, a plastic body and a metal shielding sheet arranged on one side of the plastic body. The metal shielding sheet is folded to contact with the grounding terminal in order to be communicated with the grounding terminal and be grounded, so that a plurality of holes are added on the metal shielding sheet, and the holes can indirectly influence the discontinuity of impedance, so that the shielding effect is reduced. Meanwhile, under the current requirements on high-density, miniaturized and high-speed connectors, the mechanism space is very small, and the feasibility of the bending, chamfering, cutting, forming and other processes of the metal shielding sheet also becomes a great test.
Disclosure of Invention
In view of the above, the present invention provides a transmission sheet of an electrical connector to overcome the above-mentioned drawbacks, thereby improving the shielding effect of the shielding member.
The invention provides a transmission sheet of an electric connector, which comprises: an insulating frame; a plurality of terminals arranged in a row and fixed to the insulating frame; and a shield disposed at one side of the insulating frame; wherein the shield includes: a metal plate; a plastic plate covering the metal plate; and the conductive layer at least covers the plastic board. The arrangement that the shielding part combines the plastic plate and the metal plate ensures that the shielding part has the rigidity of metal and the plasticity of plastic, thereby increasing the applicability of structural application.
Further, the conductive layer is disposed to surround the plastic board and the metal board.
Further, the metal plate is disposed between the insulating frame and the plastic plate.
Further, the plurality of terminals arranged in a column includes a plurality of ground terminals and a plurality of differential signal terminal pairs, and the shield is electrically connected to the plurality of ground terminals. By such an arrangement, the connection of the shield with the ground terminal is achieved, thereby forming a common ground for obtaining a better shielding effect.
Further, the shield is electrically connected to the plurality of ground terminals through a plurality of inner arms extending from the metal plate while being bent.
Further, the plastic plate has a first plastic plate portion and a second plastic plate portion with a reduced thickness, a plurality of first protrusions protrude from a side surface of the second plastic plate portion, and the plurality of first protrusions are respectively inserted into the plurality of openings penetrating through the metal plate, so that the plastic plate and the metal plate are fixed together.
Further, the difference between the thicknesses of the first part of the plastic plate and the second part of the plastic plate is equal to the thickness of the metal plate.
Further, the protruding height of the first protrusion from the second portion of the plastic plate is greater than or equal to the thickness of the metal plate. By such an arrangement, the opening on the metal plate is completely filled with the first convex portion of the plastic plate and the first convex portion can be protruded to be flush with the surface of the metal plate, thereby ensuring continuity of impedance and improving shielding effect.
Further, the plastic plate is also provided with a second convex part protruding from one side surface of the first part of the plastic plate, so that the first part of the plastic plate is locally thickened, wherein the protruding direction of the second convex part is the same as that of the first convex part. By such an arrangement, a mechanism of unequal material thickness can be formed to control the impedance, thereby eliminating the disadvantage of the equal material thickness of conventional metal shield sheets. Furthermore, with such an arrangement, assembly problems with plastics that are too thin can be avoided.
Further, a third protrusion is formed on the other opposite side surface of the plastic plate for electrical connection with the ground terminal of the adjacent transmission sheet, wherein the protruding direction of the third protrusion is opposite to the protruding direction of the first protrusion. By the arrangement, the characteristic that the shielding piece is easy to shape is utilized, and the convex part extends out of the position corresponding to the grounding terminal to realize common grounding, so that the design freedom degree is improved, and the Signal Integrity (SI) performance is enhanced.
Further, the conductive layer is a metal plating layer.
Further, the plastic plate is fixed on the metal plate in an injection molding mode.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a perspective view of an electrical connector according to the present invention;
FIG. 2 is an exploded view of the electrical connector of FIG. 1;
FIG. 3 is a schematic plan view of one of the transfer wafers of the electrical connector of FIG. 2;
FIG. 4 is a schematic view of the transmission piece of FIG. 3 showing a shield according to a first embodiment of the present invention;
FIG. 5 is a partial schematic view of the dashed box portion of FIG. 4 from another perspective;
FIG. 6 is a schematic view of a shield according to a second embodiment of the present invention;
FIG. 7 is a schematic view of a shield according to a third embodiment of the present invention; and
fig. 8 is a perspective view of an electrical connector according to the present invention having a transmission wafer with a shield according to a fourth embodiment of the present invention, wherein the insulating frame of one transmission wafer is removed to show the third protrusion of an adjacent transmission wafer.
Detailed Description
The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Referring to fig. 1, the present invention discloses an electrical connector 100, such as a high-speed (high-frequency) connector applied to a server or a switch, but the present invention is not limited thereto. The electrical connector 100 can be detachably connected to a mating connector (not shown) in an inserting and pulling direction S. For the convenience of describing the present invention, the electrical connector 100 defines a width direction W and a height direction H perpendicular to the inserting and pulling direction S, and the width direction W and the height direction H are perpendicular to each other.
As shown in fig. 1 and 2, the electrical connector 100 includes a housing 1 and a plurality of transmission sheets 2 inserted into the housing 1, and the transmission sheets 2 are stacked and aligned in a row along a width direction W in the present embodiment. It should be noted that, although the transmission sheet 2 is matched with the housing 1 in the embodiment, in other embodiments not shown in the present invention, the transmission sheet 2 may be used alone or matched with other components.
As shown in fig. 1 and 2, the housing 1 includes a substantially rectangular insertion part 11 and two positioning plates 12 extending from the top end and the bottom end of the insertion part 11 along the insertion/removal direction S. Wherein, the front surface of the inserting part 11 is formed with a plurality of rows of through butt joint terminal holes 111, and each row of butt joint terminal holes 111 corresponds to one transmission sheet 2 in position; that is, the arrangement direction of the mating terminal holes 111 of each row is parallel to the height direction H. As shown in fig. 2, the transmission pieces 2 are inserted into the insertion portion 11 of the housing 1 and fastened to two positioning plates 12 of the housing 1.
As shown in fig. 3, the transmission sheet 2 of the present invention includes an insulating frame 21; a plurality of terminals (which, as described below, include a ground terminal 22 and a pair of differential signal terminals 23) fixed in an array on an insulating frame 21; and a shield 20' provided on one side of the insulating frame 21. As shown in fig. 4, the shield 20 includes a metal plate 24; a plastic plate 25, wherein the plastic plate 25 covers the metal plate 24; and a conductive layer 26, wherein the conductive layer 26 at least covers the plastic plate 25. For ease of illustration, only the conductive layer 26 is shown in fig. 5, and omitted in other drawings.
Specifically, as shown in fig. 5, a conductive layer 26 is provided to surround the plastic plate 25 and the metal plate 24 to form the above-described shield. In addition, as shown in fig. 3 to 5, the metal plate 24 is disposed between the insulating frame 21 and the plastic plate 25.
With this arrangement, the plastic plate 25 may be a partially conductive plastic or may be a completely non-conductive material, the plastic plate 25 and the metal plate 24 are interposed together, and a conductive layer 26 is bonded around the joined plastic plate 25 and metal plate 24 as shown in fig. 5, thereby forming an integral shield. Because the shielding part combines the plastic plate and the metal plate, the shielding part has the rigidity of metal and the plasticity of plastic, thereby increasing the applicability of structural application. However, the present invention is not limited thereto, and in the non-illustrated drawings, the insulating frame 21, the plastic plate 25 and the metal plate 24 may be bonded to each other and then covered with the conductive layer 26 for the convenience of the manufacturing process.
As shown in fig. 2 and 3, the plurality of terminals arranged in a row includes a plurality of ground terminals 22 and a plurality of differential signal terminal pairs 23, and the shield 20 is electrically connected to the plurality of ground terminals 22. Further, the shield 20 is electrically connected to the plurality of ground terminals 22 via a plurality of inner arms 243 (shown in fig. 4) extending from the metal plate 24 in a bent manner. By such an arrangement, the connection of the shield and the ground terminal can be achieved, thereby forming a common ground for better shielding effect, while also enhancing the robustness of the structural engagement of the two.
As shown in fig. 4 and 5, which show a shield according to a first embodiment of the present invention, and fig. 5 is a partial schematic view of a portion of the dashed frame seen downward in the direction H in fig. 4. The plastic plate 25 has a first plastic plate portion 251 and a second plastic plate portion 252 having a reduced thickness, a plurality of first protrusions 261 protrude from one side of the second plastic plate portion 252, and the plurality of first protrusions 261 are respectively inserted into a plurality of openings (reference numeral not shown) of the metal plate 24, which are portions of the metal plate 24 occupied by the first protrusions 261 as shown in fig. 4, so that the plastic plate 25 and the metal plate 24 are fixed together. In addition, as shown in fig. 5, the difference between the thicknesses of the first portion 251 and the second portion 252 may be equal to the thickness of the metal plate 24.
Further, as shown in fig. 4 and 6 (fig. 6 shows a shield according to a second embodiment of the present invention), the protruding height of the first protrusion 261 from the plastic plate second portion 252 is greater than or equal to the thickness of the metal plate 24. The first convex portion 261 may be inserted into the plurality of holes of the metal plate 24 in an interference fit manner so as to achieve a stable and firm connection. With this arrangement, the opening of the metal plate 24 is completely filled with the first protrusion 261 of the plastic plate and the first protrusion 261 can protrude to be flush with the surface of the metal plate 24, so that the conductive layer 26 can uniformly and completely cover the shielding member 20, thereby ensuring the continuity of the impedance and improving the shielding effect.
As shown in fig. 7, which shows the shielding member according to the third embodiment of the present invention, the plastic plate 25 may further have a second protrusion 262 protruding from one side surface of the first portion 251 of the plastic plate for locally thickening the first portion 251 of the plastic plate, wherein the protruding direction of the second protrusion 262 is the same as the protruding direction of the first protrusion 261, and by such an arrangement, a mechanism of unequal material thickness may be formed so as to control the impedance, thereby eliminating the disadvantage of the equal material thickness of the conventional metal shielding sheet. Furthermore, with such an arrangement, assembly problems with plastics that are too thin can be avoided.
As shown in fig. 8, which shows a shielding plate according to a fourth embodiment of the present invention, a third protrusion 263 is formed on the opposite side surface of the plastic plate first portion 251 for electrical connection with the ground terminal of the adjacent transmission plate, wherein the protruding direction of the third protrusion 263 is opposite to the protruding direction of the first protrusion 261. By the arrangement, the characteristic that the shielding piece is easy to shape is utilized, and the convex part extends out of the position corresponding to the grounding terminal to realize common grounding, so that the design freedom degree is improved, and the Signal Integrity (SI) performance is enhanced.
In addition, the conductive layer 26 may be a metal plating layer, and the plastic plate 25 may be fixed to the metal plate 24 by injection molding.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. A transmission wafer of an electrical connector comprising:
an insulating frame (21);
a plurality of terminals arranged in a row and fixed to the insulating frame (21); and
a shield provided at one side of the insulating frame (21);
characterized in that said shield (20) comprises:
a metal plate (24);
a plastic plate (25) covering the metal plate (24); and
a conductive layer (26) covering at least the plastic plate (25).
2. Transfer sheet according to claim 1, characterized in that the electrically conductive layer (26) is arranged to surround the plastic plate (25) and the metal plate (24).
3. Transfer sheet according to claim 1 or 2, characterized in that the metal plate (24) is arranged between the insulating frame (21) and the plastic plate (25).
4. The transmission patch according to claim 1, wherein the terminals arranged in a column include a plurality of ground terminals (22) and a plurality of differential signal terminal pairs (23), and the shield (20) is electrically connected to the plurality of ground terminals (22).
5. The transmission patch according to claim 4, wherein the shield (20) is electrically connected to the plurality of ground terminals (22) through a plurality of inner arms (243) extending from the metal plate (24) in a bent manner.
6. The transfer sheet of claim 1, wherein the plastic plate (25) has a first plastic plate portion (251) and a second plastic plate portion (252) having a reduced thickness, a plurality of first protrusions (261) protruding from one side of the second plastic plate portion (252), the plurality of first protrusions (261) being respectively inserted into a plurality of openings penetrating the metal plate (24), so that the plastic plate (25) and the metal plate (24) are fixed together.
7. Transfer sheet according to claim 6, characterized in that the difference in thickness between said first portion (251) of plastic plate and said second portion (252) of plastic plate is equal to the thickness of said metal plate (24).
8. Transfer sheet according to claim 6, characterized in that the first protrusion (261) protrudes from the second portion (252) of the plastic plate by a height greater than or equal to the thickness of the metal plate (24).
9. Transfer sheet according to claim 6, wherein the plastic plate (25) further has a second protrusion (262) protruding from one side of the first plastic plate part (251) such that the first plastic plate part (251) is locally thickened, wherein the protruding direction of the second protrusion (262) is the same as the protruding direction of the first protrusion (261).
10. The transmission patch according to claim 6, wherein a third protrusion (263) is formed on the other opposite side surface of the plastic plate (25) for electrical connection with the ground terminal of an adjacent transmission patch, wherein the protrusion direction of the third protrusion (263) is opposite to the protrusion direction of the first protrusion (261).
11. A transmission sheet according to claim 1, characterized in that the conductive layer (26) is a metal plating.
12. Transfer sheet according to claim 1, characterized in that the plastic plate (25) is fixed to the metal plate (24) by means of injection molding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878047.0A CN112531417A (en) | 2019-09-17 | 2019-09-17 | Transmission sheet of electric connector |
| TW108213836U TWM592181U (en) | 2019-09-17 | 2019-10-21 | Transfer film of electrical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878047.0A CN112531417A (en) | 2019-09-17 | 2019-09-17 | Transmission sheet of electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112531417A true CN112531417A (en) | 2021-03-19 |
Family
ID=70768055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910878047.0A Pending CN112531417A (en) | 2019-09-17 | 2019-09-17 | Transmission sheet of electric connector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112531417A (en) |
| TW (1) | TWM592181U (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013543209A (en) * | 2010-12-03 | 2013-11-28 | ▲華▼▲為▼▲終▼端有限公司 | USB plug, PCB connected to the USB plug, and USB device |
| CN204011823U (en) * | 2014-07-23 | 2014-12-10 | 安费诺（常州）高端连接器有限公司 | Composite type full-shield High speed rear panel connector |
| CN106450853A (en) * | 2015-04-30 | 2017-02-22 | 莫列斯有限公司 | Slice and method for preparing same |
| CN109088273A (en) * | 2018-08-20 | 2018-12-25 | 四川华丰企业集团有限公司 | It is a kind of using connector overlapped electric connector and electronic equipment |
| CN109768438A (en) * | 2019-03-29 | 2019-05-17 | 四川华丰企业集团有限公司 | For the shield assembly of high speed connector, modular structure and high speed connector |
| CN109830850A (en) * | 2019-03-29 | 2019-05-31 | 四川华丰企业集团有限公司 | Modular structure and high speed connector for high speed connector |
| CN110086026A (en) * | 2019-04-29 | 2019-08-02 | 温州意华接插件股份有限公司 | Electric connector |
-
2019
- 2019-09-17 CN CN201910878047.0A patent/CN112531417A/en active Pending
- 2019-10-21 TW TW108213836U patent/TWM592181U/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013543209A (en) * | 2010-12-03 | 2013-11-28 | ▲華▼▲為▼▲終▼端有限公司 | USB plug, PCB connected to the USB plug, and USB device |
| CN204011823U (en) * | 2014-07-23 | 2014-12-10 | 安费诺（常州）高端连接器有限公司 | Composite type full-shield High speed rear panel connector |
| CN106450853A (en) * | 2015-04-30 | 2017-02-22 | 莫列斯有限公司 | Slice and method for preparing same |
| CN109088273A (en) * | 2018-08-20 | 2018-12-25 | 四川华丰企业集团有限公司 | It is a kind of using connector overlapped electric connector and electronic equipment |
| CN109768438A (en) * | 2019-03-29 | 2019-05-17 | 四川华丰企业集团有限公司 | For the shield assembly of high speed connector, modular structure and high speed connector |
| CN109830850A (en) * | 2019-03-29 | 2019-05-31 | 四川华丰企业集团有限公司 | Modular structure and high speed connector for high speed connector |
| CN110086026A (en) * | 2019-04-29 | 2019-08-02 | 温州意华接插件股份有限公司 | Electric connector |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM592181U (en) | 2020-03-11 |
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