Electric connector

Abstract

An electric connector comprises a seat body extending in the longitudinal direction, two rows of conductive terminals fixed to the seat body and a metal shielding plate arranged between the two rows of conductive terminals in the transverse direction perpendicular to the longitudinal direction, each row of conductive terminals comprises a signal terminal and a grounding terminal, and each conductive terminal comprises a contact part and a pin. The electric connector further comprises a metal connecting piece which enables the plurality of grounding terminals to be integrally connected with each other, and the metal connecting piece abuts against the metal shielding plate. Compared with the prior art, the grounding terminals of the two rows of conductive terminals are integrally connected with each other through the metal connecting piece, and the metal connecting piece abuts against the metal shielding plate, so that the grounding terminals and the metal shielding plate are reliably conducted, and the high-frequency performance is good.

Description

[Technical field]

[0001] The invention relates to an electric connector, in particular to an electric connector with good high frequency performance. [Background technology]

[0002] The prior art refers to Taiwan's utility model patent No. TWM562507U, which discloses an electrical connector, including a seat, two rows of conductive terminals held in the seat, a conductive plastic part disposed between the two rows of conductive terminals, and a metal shell disposed outside the seat, wherein the conductive plastic part is respectively in contact with the grounding terminals in the two rows of conductive terminals, and the conductive plastic part is used to realize the series connection of the grounding terminals, thereby reducing the crosstalk between signals. However, in response to the development trend of high-speed transmission of electrical connectors, the industry's demand for high-frequency performance of electrical connectors continues to increase, and the current electrical connectors can no longer meet the demand.

[0003] Therefore, it is necessary to improve the existing electrical connector to meet the demand. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide an electrical connector which can improve high frequency performance.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: an electrical connector, comprising a seat body extending in the longitudinal direction, two rows of conductive terminals fixed to the seat body, and a metal shielding plate arranged between the two rows of conductive terminals in a transverse direction perpendicular to the longitudinal direction, each row of the conductive terminals comprising a signal terminal and a grounding terminal, the conductive terminals comprising a contact portion and a pin, the electrical connector also comprising a metal connector that integrally connects a plurality of the grounding terminals to each other, the metal connector abutting against the metal shielding plate.

[0006] Furthermore, the metal connector is a flat plate member extending in the longitudinal direction, and the grounding terminals of the two rows of conductive terminals are formed by bending and extending downward from two lateral sides of the metal connector.

[0007] Furthermore, the conductive terminal includes a flat portion and a pin extending from the flat portion of the base body, the flat portion has a relative outer surface and an inner surface, the outer surface is exposed from the base body to form the contact portion, and the metal connector is integrally connected to the upper end of the flat portion of the grounding terminal of the two rows of conductive terminals.

[0008] Furthermore, the metal connector penetrates the upper and lower surfaces to form a plurality of through holes arranged in the longitudinal direction, and the metal shielding plate includes a base plate supporting the metal connector and a protruding plate portion protruding upward from the upper end of the base plate and welded into the through holes.

[0009] Furthermore, the electrical connector includes two metal shielding plates that are laterally spaced apart between two rows of conductive terminals, and the upper ends of the two metal shielding plates are integrally connected via a top plate, which is welded to the lower surface of the metal connector.

[0010] Furthermore, the electrical connector includes two metal shielding plates that are laterally spaced apart between the two rows of conductive terminals, and the two metal shielding plates include substrates that respectively support the metal connectors and protruding plate portions that protrude upward from the upper end of the substrate and are welded and fixed to the lateral sides of the metal connector.

[0011] Furthermore, the seat body includes a docking block and a seat body block assembled together, the two rows of conductive terminals, metal connectors and metal shielding plates are injection molded on the docking block, the docking block includes a docking tongue plate and a mounting portion, the seat body block includes a base plate and a surrounding wall portion, the base plate is provided with a mounting opening, the mounting portion of the docking block is fixed in the mounting opening, the docking tongue plate is located in the surrounding wall portion, and a docking cavity is formed between the docking tongue plate and the surrounding wall portion, and the contact portion of the conductive terminal is exposed to the docking surface of the docking tongue plate.

[0012] Furthermore, the docking block includes a base block and a covering block, the metal connector, the grounding terminal and the metal shielding plate are injection molded on the base block, the side surfaces on both sides of the base block protrude to form a plurality of protrusions arranged at intervals along the longitudinal direction, positioning grooves are formed between adjacent protrusions, the signal terminals of the two rows of conductive terminals are fixed in the positioning grooves, and the covering block is injection molded outside the base block.

[0013] Furthermore, the metal shielding plate is provided with a penetrating opening corresponding to the grounding terminal.

[0014] Furthermore, the metal connector and the grounding terminal are formed by stamping and bending the same metal plate, and in each row of conductive terminals, two adjacent signal terminals constitute a differential terminal pair, and the differential terminal pair and the grounding terminal are arranged alternately with each other, and the height of the grounding terminal is higher than that of the signal terminal.

[0015] Compared with the prior art, the present invention has the following beneficial effects: in the electrical connector of the present invention, the grounding terminals of the two rows of conductive terminals are integrally connected to each other through a metal connector, and the metal connector abuts against the metal shielding plate, so that the grounding terminals and the metal shielding plate are reliably conductive and have good high-frequency performance, and the integrated structure of the metal connector and the grounding terminal can effectively prevent the seat body from warping due to heat.

Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional diagram of the electrical connector of the present invention.

[0017] Figure 2 yes Figure 1 Another perspective of the stereogram.

[0018] Figure 3 It is a three-dimensional exploded view of the electrical connector of the present invention.

[0019] Figure 4 yes Figure 3 Another perspective exploded view with the metal shell removed.

[0020] Figure 5 It is a three-dimensional diagram of the base block of the present invention being injection molded on a metal connector and a metal shielding plate.

[0021] Figure 6 It is a partial three-dimensional exploded view of the invented electrical connector.

[0022] Figure 7 yes Figure 6 Another perspective exploded view.

[0023] Figure 8 It is a three-dimensional diagram of the metal shielding plate of the present invention being welded to a metal connecting piece.

[0024] Fig. 9 yes Figure 1 Section view along line AA.

[0025] Fig.10 yes Figure 1 Section view along line BB.

[0026] Fig.11 It is a partial exploded perspective view of the second embodiment of the electrical connector of the present invention.

[0027] Fig.12 yes Fig.11 Another perspective exploded view.

[0028] Fig.13 It is a three-dimensional view of a metal shielding plate welded to a metal connecting piece according to a second embodiment of the present invention.

[0029] Fig.14 It is a cross-sectional schematic diagram of a second embodiment of the electrical connector of the present invention.

[0030] Fig.15 FIG. 4 is another cross-sectional schematic diagram of the second embodiment of the electrical connector of the present invention.

[0031] Fig.16 It is a partial exploded perspective view of the third embodiment of the present invention.

[0032] Fig.17 yes Fig.16 Another perspective exploded view.

[0033] Fig.18 It is a three-dimensional view of a metal shielding plate welded to a metal connecting piece according to a third embodiment of the present invention.

[0034] Fig.19 2 is a cross-sectional schematic diagram of a third embodiment of an electrical connector of the present invention.

[0035] Fig. 20 FIG. 4 is another cross-sectional schematic diagram of the third embodiment of the electrical connector of the present invention. [Specific implementation method]

[0036] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0037] See also Figures 1 to 20 As shown, the present invention is an electrical connector 100 for high-speed signal transmission, which is installed on a circuit board (not shown). The electrical connector 100 is an FPIO connector.

[0038] The electrical connector 100 includes an insulating base body 1 extending longitudinally, two rows of conductive terminals 2 fixed to the base body 1, a metal shielding plate 3 arranged between the two rows of conductive terminals 2 in a vertical and longitudinal direction, and a metal shell 4 arranged around and fixed outside the base body 1.

[0039] The seat body includes a docking tongue plate 101 and a surrounding wall portion 102 surrounding the docking tongue plate 101. The surrounding wall portion 102 and the docking tongue plate 101 are spaced to form a docking cavity 103. The docking cavity 103 passes through the docking surface 104 of the seat body 1 upward. The metal shell 4 is installed on the outer side of the surrounding wall portion 102 and extends upward to exceed the docking surface 104 of the seat body 1. The metal shell 4 includes a first side wall 41, a second side wall 42 opposite to the first side wall 41, and two end walls 43 connecting the first side wall 41 and the second side wall 42. The first side wall 41 of the metal shell 4 is provided with a locking hole 411. The locking hole 411 is used for a locking arm (not shown) of a docking connector (not shown) to buckle in, thereby completing the locking function. The lower ends of the first side wall 41 and the second side wall 42 extend downward to form a solder foot 40, and the solder foot 40 is soldered to a circuit board (not shown). The height of the second side wall 42 of the metal shell 4 is lower than that of the first side wall 41. The second side wall 42 is roughly flush with the docking surface 104. The two opposite end walls 43 are stepped, including a first protruding portion 431 protruding from the first height of the docking surface 104 and a second protruding portion 432 protruding from the second height of the docking surface 104. The second protruding portion 432 is higher than the first protruding portion 431. The second protruding portion 432 is roughly flush with the height of the first side wall 41. A portion of the first protruding portion 431 continues to extend to the corner of the second side wall 42. A plurality of guide pieces 44 further extend upward from the second protruding portion 432 and the first side wall 41. The high and low structure of the metal shell 40 can better wrap the docking connector (not shown) therein, which not only has a good alignment effect, but also can ensure force balance. A plurality of retaining blocks 120 are provided on the outer side of the seat body 1. The metal shell 4 is supported downwardly in the slit of the retaining block 120, which can fix the metal shell 4 well.

[0040] The seat body includes a docking block 11 and a seat body block 12 assembled together, the docking block 11 includes the docking tongue plate 101 and the mounting portion 105, the seat body block 12 includes a bottom plate 121 and the surrounding wall portion 102, the bottom plate 121 is provided with a mounting opening 1211, the docking block 11 is installed into the mounting opening 1211 from the bottom surface of the seat body block 12, and the mounting portion 105 of the docking block 11 is installed in the mounting opening 1211 by clamping and interference, so that the two are assembled together to form the seat body 12. The mounting portion 105 is provided with convex portions 1051 at both longitudinal ends, and the bottom surface of the bottom plate 121 is concavely formed upward to form a groove 1212, the convex portion 1051 is interference-fixed in the groove 1212, and the groove 1212 can limit the upward movement of the docking block 11. The two lateral sides of the mounting portion 105 protrude to form a block portion 1052, and correspondingly, the side wall 1021 extending longitudinally of the surrounding wall portion 102 is provided with a holding hole 1022 for the block portion 1052 to be inserted into, and the two cooperate to limit the movement of the docking block 11 in the up and down directions. In addition, the inner wall surface of the side wall 1021 is provided with a plurality of convex ribs 1023, and the convex ribs 1023 are used for interference fit with the two lateral sides of the mounting portion 105.

[0041] The conductive terminal includes a flat plate portion 21 and a pin 22 extending from the flat plate portion 21 out of the seat body 1. The flat plate portion 21 has an outer surface 211 and an inner surface 212 opposite to each other. The outer surface 211 is exposed to the seat body 1 to form a contact portion 213. The contact portion 213 is exposed to the mating surface 1011 of the mating tongue plate 101. The pin 22 extends out of the seat body 1. Each row of conductive terminals 2 includes a signal terminal 20S and a ground terminal 20G. In the present invention, in each row of conductive terminals 2, two adjacent signal terminals 20S form a differential terminal pair. The differential terminal pair and the ground terminal 20G are arranged alternately with each other. A differential terminal pair has a ground terminal 20G on each longitudinal side. The upper edge of the flat plate portion 21 of the ground terminal 20G protrudes upward from the upper edge of the flat plate portion 21 of the signal terminal 20S. In other words, the height of the ground terminal 20G is higher than that of the signal terminal 20S, and the width of the flat plate portion 21 of the ground terminal 20G is also greater than the width of the flat plate portion 21 of the signal terminal 20S.

[0042] Ginseng Figures 5 to 10As shown, the metal shielding plate 3 extends continuously and uninterruptedly in the longitudinal direction, and the metal shielding plate 3 is used to reduce the signal crosstalk between the signal terminals 20S in the two rows of conductive terminals 2. A number of grounding terminals 20G in the two rows of conductive terminals 2 are connected to each other through a metal connector 5, and the metal connector 5 abuts against the metal shielding plate 3. The two rows of conductive terminals 2, the metal connector 5 and the metal shielding plate 3 are injection molded on the docking block 11. Specifically, the metal connector 5 and the grounding terminals 20G in the two rows of conductive terminals 2 are formed by stamping and bending the same metal plate. The metal connector 5 is a flat plate member extending in the longitudinal direction. The grounding terminals 20G in the two rows of conductive terminals 2 are respectively bent downward from both sides of the metal connector 5 in the transverse direction. In other words, the metal connector 5 is integrally connected to the upper end of the flat plate portion 21 of the grounding terminal 20G. The metal connector 5 penetrates the upper and lower surfaces to form a plurality of through holes 51 arranged in the longitudinal direction. The metal shielding plate 3 includes a base plate 31 supporting the metal connector 5 and a protruding plate portion 32 protruding upward from the upper end of the base plate 31 and welded into the through holes 51 .

[0043] The docking block 11 further includes a base block 110 and a covering block 111. The metal connector 5 and the grounding terminals 20G in the two rows of conductive terminals 2 integrally connected thereto are injection molded on the base block 110. When the base block 110 is injection molded, the insulating material will flow into the through hole 51 to ensure a stable connection between the metal connector 5 and the metal shielding plate 3. The side surfaces 1100 on both sides of the base block 110 protrude to form a plurality of protruding blocks 1102 arranged at intervals in the longitudinal direction. Positioning grooves 1103 are formed between adjacent protruding blocks 1102. The signal terminals 20S in the two rows of conductive terminals 2 are fixed in the positioning grooves 1103. The covering block 111 is injection molded outside the base block 110 to stabilize the signal terminals 20S.

[0044] The manufacturing method of the electrical connector 100 of the present invention is described below. A metal plate is provided and the metal plate is stamped and bent to form a metal connector 5 and a plurality of grounding terminals 20G integrally connected to the metal connector 5 on both sides in the horizontal direction. A metal shielding plate 3 is provided and the metal shielding plate 3 is welded to the metal connector 5. An insulating material is provided and injection molded outside the welded metal connector 5 and the metal shielding plate 3 to form a base block 110. The grounding terminals 20G are located on both sides in the horizontal direction of the base block 110. A plurality of signal terminals 20S are provided and two signal terminals 20S are connected to each other. The signal terminals 20S are a pair arranged between adjacent ground terminals 20G, and the signal terminals 20S are fixed to the positioning grooves 1103 on both sides of the base block 110; an insulating material is provided and injection molded outside the base block 110 to form a covering block 111; an insulating base block 12 is provided, and the docking block 11 composed of the base block 110 and the covering block 111 is assembled from bottom to top and fixed to the base block 12 through the installation port 1211 of the base block 12; a metal shell 4 is provided, and the metal shell 4 is assembled and fixed to the base block 12 from top to bottom to form the electrical connector 100.

[0045] Ginseng Figures 11 to 15 As shown, it is a second embodiment of the present invention, which is different from Figures 6 to 9 There is only one metal shielding plate 3 in the second embodiment. In the second embodiment, two metal shielding plates 3 are arranged between the two rows of conductive terminals 2 in the lateral direction. The two metal shielding plates 3 are spaced apart in the lateral direction and are arranged independently of each other. Each metal shielding plate 3 includes a base plate 31 and a protruding plate portion 32 formed by protruding upward from the upper end of the base plate 31. The base plates 31 of the two metal shielding plates 3 are respectively supported on the metal connecting member 5, and the protruding plate portions 32 are respectively welded and fixed to the lateral sides of the metal connecting member 5. Specifically, the protruding plate portions 32 are welded and fixed to the areas defined by the adjacent grounding terminals 20G on the lateral sides of the metal connecting member 5. In addition, in order to ensure that the base block 110 is reliably combined with the metal connecting member 5, the metal connecting member 5 is also provided with a through hole 51, and the through hole 51 is used for the insulating material of the base block 110 to flow in. Compared with the arrangement of one metal shielding plate, in the second embodiment, two metal shielding plates 3 are arranged with a transverse spacing, so that the transverse spacing between the conductive terminal 2 and the metal shielding plate 3 can be adaptively adjusted, thereby effectively providing high-frequency performance of the electrical connector 100. In addition, in the second embodiment, the two metal shielding plates 3 are provided with openings 33 at the positions corresponding to the corresponding grounding terminals 20G and are closed at the positions corresponding to the signal terminals 20S. The openings 33 allow the insulating material to flow into the base block 110 during injection molding, thereby ensuring the reliability of the combination of the metal shielding plate 3 and the base block 110.

[0046] Ginseng Figures 16 to 20, which is a third embodiment of the present invention. Different from the second embodiment, in the third embodiment, the upper ends of the two metal shielding plates 3 arranged at intervals in the transverse direction are connected integrally through a top plate 33, and the top plate 33 is horizontally arranged and welded to the lower surface of the metal connector 5. The metal connector 5 is also provided with a plurality of through holes 51, and the through holes 51 are used for the insulating material of the base block 110 to flow in.

[0047] In the electrical connector 100 of the present invention, the grounding terminals 20G of the two rows of conductive terminals 2 are connected to each other through a metal connector 5, and the metal connector 5 is welded and fixed to the metal shielding plate 3. The grounding terminal 20G and the metal shielding plate 3 are reliably conductive and have good high-frequency performance. In addition, the structural strength of the integrated structure of the metal connector 5 and the grounding terminal 20G is high, which can effectively prevent the electrical connector 100 from being warped by heat. The above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereto. That is, all simple equivalent changes and modifications made according to the claims of the present invention and the contents of the present invention specification should still be within the scope of the present invention.

Claims

1. An electrical connector, comprising a seat extending in a longitudinal direction, two rows of conductive terminals fixed to the seat, and a metal shielding plate disposed between the two rows of conductive terminals in a transverse direction perpendicular to the longitudinal direction, each row of conductive terminals comprising a signal terminal and a ground terminal, the conductive terminals comprising a contact portion and a pin, characterized in that: The electrical connector further comprises a metal connector for integrally connecting the plurality of grounding terminals to each other, wherein the metal connector abuts against the metal shielding plate.

2. The electrical connector according to claim 1, wherein: The metal connector is a flat plate member extending in the longitudinal direction, and the grounding terminals of the two rows of conductive terminals are respectively formed by bending downward and extending from both lateral sides of the metal connector.

3. The electrical connector according to claim 2, wherein: The conductive terminal includes a flat plate portion and pins extending from the flat plate portion to form a seat body. The flat plate portion has opposite outer and inner surfaces. The outer surface is exposed from the seat body to form the contact portion. The metal connector is integrally connected to the upper end of the flat plate portion of the grounding terminal of the two rows of conductive terminals.

4. The electrical connector according to claim 3, wherein: The metal connector penetrates the upper and lower surfaces to form a plurality of through holes arranged in the longitudinal direction. The metal shielding plate includes a base plate supporting the metal connector and a protruding plate portion protruding upward from the upper end of the base plate and welded into the through holes.

5. The electrical connector according to claim 3, wherein: The electrical connector includes two metal shielding plates that are laterally spaced apart and located between two rows of conductive terminals. The upper ends of the two metal shielding plates are integrally connected via a top plate, and the top plate is welded to the lower surface of the metal connector.

6. The electrical connector according to claim 3, wherein: The electrical connector includes two metal shielding plates that are laterally spaced apart between two rows of conductive terminals. The two metal shielding plates include substrates that respectively support the metal connectors and protruding plate portions that protrude upward from the upper end of the substrate and are welded and fixed to the lateral sides of the metal connector.

7. The electrical connector according to claim 3, wherein: The seat body includes a docking block and a seat body block assembled together, two rows of conductive terminals, metal connectors and metal shielding plates are injection molded on the docking block, the docking block includes a docking tongue plate and a mounting portion, the seat body block includes a bottom plate and a surrounding wall portion, the bottom plate is provided with a mounting opening, the mounting portion of the docking block is fixed in the mounting opening, the docking tongue plate is located in the surrounding wall portion, and a docking cavity is formed between the docking tongue plate and the surrounding wall portion, and the contact portion of the conductive terminal is exposed to the docking surface of the docking tongue plate.

8. The electrical connector according to claim 7, wherein: The docking block includes a base block and a covering block, the metal connector, the grounding terminal and the metal shielding plate are injection molded on the base block, the side surfaces on both sides of the base block protrude to form a plurality of protrusions arranged at intervals along the longitudinal direction, positioning grooves are formed between adjacent protrusions, the signal terminals of the two rows of conductive terminals are fixed in the positioning grooves, and the covering block is injection molded outside the base block.

9. The electrical connector according to claim 8, wherein: The metal shielding plate is provided with a penetrating opening at a position corresponding to the grounding terminal.

10. The electrical connector according to claim 1, wherein: The metal connector and the grounding terminal are formed by stamping and bending the same metal plate. In each row of conductive terminals, two adjacent signal terminals form a differential terminal pair. The differential terminal pair and the grounding terminal are arranged alternately with each other. The height of the grounding terminal is higher than that of the signal terminal.

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