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, and each row of conductive terminals comprises a signal terminal and a grounding terminal. Each conductive terminal comprises a contact part exposed out of the seat body and a pin extending out of the seat body, the electric connector also comprises a metal connecting piece, the plurality of grounding terminals are formed by integrally extending from the metal connecting piece, and the metal shielding plate is formed by integrally extending from the metal connecting piece. Compared with the prior art, the grounding terminals of the two rows of conductive terminals and the metal shielding plate are integrally connected with the metal connecting piece respectively, the structural strength is high, 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 exposed to the seat body and a pin extending out of the seat body, the electrical connector further comprising a metal connector, a plurality of the grounding terminals being integrally extended from the metal connector, and the metal shielding plate being integrally extended from the metal connector.

[0006] Furthermore, the grounding terminal, the metal connector and the metal shielding plate are formed by stamping and bending the same metal plate, the metal connector is a flat member extending in the longitudinal direction, the two lateral sides of the metal connector are respectively bent downward and extended as a whole to form a plurality of the grounding terminals, and at least one lateral side of the metal connector is bent downward to form the metal shielding plate that blocks the signal terminals between the two rows of conductive terminals in the lateral direction.

[0007] Furthermore, in each row of conductive terminals, two adjacent signal terminals constitute a differential terminal pair, and the differential terminal pair and the grounding terminals are arranged alternately with each other. At least one side of the metal connecting piece is bent downward between the longitudinally adjacent grounding terminals to form the metal shielding plate, and the metal shielding plate is arranged laterally between the differential terminal pairs in the two rows of conductive terminals.

[0008] Furthermore, two lateral sides of the metal connector are bent and extended downward between the longitudinally adjacent grounding terminals in each row of conductive terminals to form the metal shielding plate.

[0009] Furthermore, the metal shielding plates formed by bending and extending downward on both lateral sides of the metal connector are arranged at intervals in the lateral direction.

[0010] Furthermore, the metal shielding plate includes an arc-shaped protruding plate portion bent downward and inward from the metal connecting piece and a vertical plate portion extending downward from a free end of the arc-shaped protruding plate portion, and the vertical plate portion is located on the lateral inner side of the arc-shaped protruding plate portion.

[0011] Furthermore, the upper end of the ground terminal is flush with the upper end of the metal shielding plate, and the upper end of the ground terminal protrudes upwards than the upper end of the signal terminal.

[0012] 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.

[0013] Furthermore, the docking block includes a base block and a covering block, the metal connector, the grounding terminal and the metal shielding plate connected as one piece 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.

[0014] Furthermore, the electrical connector also includes a metal shell installed on the outside of the surrounding wall portion of the seat block, the metal shell extends upward and protrudes out of the docking surface provided on the seat body, the metal shell includes a first side wall, a second side wall opposite to the first side wall, and two end walls connecting the first side wall and the second side wall, and the first side wall is provided with a locking hole.

[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 and the metal shielding plates of the two rows of conductive terminals are respectively connected to each other in one piece with a metal connector, and the high structural strength makes the electrical connector less likely to be warped or deformed by heat, and the integrated structure makes the electrical connector have good high-frequency performance.

Brief Description of the Drawings

[0016] Figure 1It 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 yes Figure 1 Section view along line AA.

[0024] Fig. 9 yes Figure 1 Section view along line BB. [Specific implementation method]

[0025] 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.

[0026] See also Figures 1 to 9 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.

[0027] 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 on the outer side of the base body 1.

[0028] The seat body 1 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 docking surface 104 at a first height and a second protruding portion 432 protruding from the docking surface 104 at a second height. 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 4 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.

[0029] The seat body 1 comprises a docking block 11 and a seat body block 12 which are assembled together. The docking block 11 comprises the docking tongue plate 101 and the mounting portion 105. The seat body block 12 comprises a bottom plate 121 and the surrounding wall portion 102. The metal shell 4 is mounted on the outside of the surrounding wall portion 102. The retaining block 120 is arranged on the outer side of 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. The mounting portion 105 of the docking block 11 is installed in the mounting opening 1211 by means of 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. The bottom surface of the bottom plate 121 is concavely formed upward to form a groove 1212. The convex portion 1051 is fixed in the groove 1212 by interference. 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.

[0030] 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 end of the flat plate portion 21 of the ground terminal 20G protrudes upward from the upper end 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.

[0031] The electrical connector 100 further includes a metal connector 5 extending in the longitudinal direction, a plurality of the grounding terminals 20G integrally extending from the metal connector 5, and the metal shielding plate 3 also integrally extending from the metal connector 5. In other words, the two rows of the grounding terminals 20G, the metal shielding plate 3 and the metal connector 5 are formed by stamping and bending the same metal plate. Specifically, the metal connector 5 is a flat plate member extending in the longitudinal direction, and the two lateral sides of the metal connector 5 are integrally bent downward to form a plurality of the grounding terminals 20G, and the two lateral sides of the metal connector 5 are respectively bent downward between the longitudinally adjacent grounding terminals 20G in each row of conductive terminals 2 to form the metal shielding plate 4, and the upper end of the grounding terminal 20G is flush with the upper end of the metal shielding plate 3. In the present invention, each row of conductive terminals 2 is provided with a plurality of differential terminal pairs and grounding terminals 20G located on both longitudinal sides of the differential terminal pairs, and the metal shielding plate 3 is provided between the differential terminal pairs in the two rows of conductive terminals 2 in the transverse direction. The metal shielding plates 3 formed by bending and extending downward on both lateral sides of the metal connector 5 are arranged at intervals in the lateral direction. In this way, the lateral spacing between the signal terminals 20S in each row of the conductive terminals 2 and the metal shielding plates 3 can be adaptively adjusted, thereby effectively providing the high-frequency performance of the electrical connector 100. It should be noted that in other embodiments, the metal connector 5 can also be bent and extended downward on only one lateral side to form the metal shielding plate 3 located between the longitudinally adjacent grounding terminals 20G, or the lateral sides of the metal connector 5 are staggeredly bent and extended downward in the longitudinal direction to form the metal shielding plate 3 located between the longitudinally adjacent grounding terminals 20G.

[0032] The docking block 11 further includes a base block 110 and a covering block 111. The metal connector 5, the grounding terminal 20G in the two rows of conductive terminals 2 integrally connected to the metal connector 5, and the metal shielding plate 3 are injection molded on the base block 110. The side surfaces 1100 on both sides of the base block 110 protrude to form a plurality of protruding blocks 1102 arranged at intervals along 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. In the present invention, the metal shielding plate 3 includes an arc-shaped protruding plate portion 31 formed by bending downward and inward from the metal connector 5 and a vertical plate portion 32 formed by extending downward from the free end of the arc-shaped protruding plate portion 31, and the vertical plate portion 32 is located on the inner side of the arc-shaped protruding plate portion 31. The arrangement of the arc-shaped protruding plate portion 31 can improve the structural strength of the metal shielding plate 3. The arc-shaped protruding plate portion 31 and the vertical plate portion 32 of the metal shielding plate 3 are both located on the inner side of the grounding terminal 20G in the lateral direction. The metal shielding plate 3 integrally connected to the metal connector 5 and the grounding terminal 20G are arranged in an inner and outer alternating manner, which can effectively stabilize the docking block 11 and prevent the docking block 11 from warping and deformation after being heated.

[0033] 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, a plurality of grounding terminals 20G integrally connected to the metal connector 5 on both sides in the lateral direction, and a metal shielding plate 3 integrally connected to the metal connector 5 on both sides in the lateral direction and located between adjacent grounding terminals 20G in the longitudinal direction; an insulating material is provided and injection molded outside the metal connector 5, the metal shielding plate 3 and the grounding terminals 20G integrally connected to each other to form a base block 110, and the grounding terminals 20G are located on both sides in the lateral 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 terminals 20S are a pair arranged between adjacent ground terminals 20G, and the signal terminals 20S are fixed in the positioning grooves 1103 arranged 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, and the covering block 111 stabilizes the signal terminal 20S; 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.

[0034] In the present invention, the metal shielding plate 3 and the grounding terminal 20G are connected integrally through a flat metal connector 5, so that the electrical connector 100 has reliable structural strength and stable high-frequency performance. 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 fall 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, wherein each row of conductive terminals comprises a signal terminal and a ground terminal, and wherein the conductive terminals comprise contact portions exposed in the seat and pins extending out of the seat, wherein: The electrical connector further comprises a metal connector, a plurality of grounding terminals are integrally extended from the metal connector, and the metal shielding plate is integrally extended from the metal connector.

2. The electrical connector according to claim 1, wherein: The grounding terminal, the metal connector and the metal shielding plate are formed by stamping and bending the same metal plate. The metal connector is a flat member extending in the longitudinal direction. The two lateral sides of the metal connector are bent downward and extended as a whole to form a plurality of the grounding terminals. At least one lateral side of the metal connector is bent downward to form the metal shielding plate that blocks the signal terminals between the two rows of conductive terminals in the lateral direction.

3. The electrical connector according to claim 2, wherein: In each row of conductive terminals, two adjacent signal terminals form a differential terminal pair, and the differential terminal pair and the grounding terminals are arranged alternately with each other. At least one side of the metal connecting member is bent downward between the longitudinally adjacent grounding terminals to form the metal shielding plate, and the metal shielding plate is arranged laterally between the differential terminal pairs in the two rows of conductive terminals.

4. The electrical connector according to claim 3, wherein: The transverse sides of the metal connecting member are respectively bent downward and extended between the longitudinally adjacent grounding terminals in each row of conductive terminals to form the metal shielding plate.

5. The electrical connector according to claim 4, wherein: The metal shielding plates formed by bending and extending downwardly on both lateral sides of the metal connector are arranged at intervals in the lateral direction.

6. The electrical connector according to claim 2, wherein: The metal shielding plate includes an arc-shaped protruding plate portion bent downward and inward from the metal connecting piece and a vertical plate portion extending downward from a free end of the arc-shaped protruding plate portion, wherein the vertical plate portion is located at a lateral inner side of the arc-shaped protruding plate portion.

7. The electrical connector according to claim 2, wherein: The upper end of the ground terminal is flush with the upper end of the metal shielding plate, and the upper end of the ground terminal protrudes upwards from the upper end of the signal terminal.

8. The electrical connector according to claim 2, 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.

9. The electrical connector according to claim 8, wherein: The docking block includes a base block and a covering block. The metal connector, the grounding terminal and the metal shielding plate connected as one piece 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. The covering block is injection molded outside the base block.

10. The electrical connector according to claim 8, wherein: The electrical connector also includes a metal shell installed on the outside of the surrounding wall portion of the seat block, the metal shell extends upward and protrudes out of the docking surface provided on the seat body, the metal shell includes a first side wall, a second side wall opposite to the first side wall, and two end walls connecting the first side wall and the second side wall, and the first side wall is provided with a locking hole.

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