CN204577746U - Electric connector - Google Patents

Abstract

An electric connector includes a shell, several pairs of differential signal sheets and several ground shielding sheets arranged alternately on the shell, and three serial connectors. Each differential signal chip includes a rubber core and two signal terminals partially embedded in the rubber core. Each ground shielding sheet includes a sheet body, two shielding sections extending from one end of the sheet body, three extension sections and three grounding positioning sections sequentially extending from the other end of the sheet body. Wherein, the position of each pair of differential signal slices inside the shell is shielded by the slice body and the shielding section of the adjacent ground shielding slice. Each serial connection is installed in the casing and connected to the ground shields, so that the ground shields can achieve electrical communication through any serial connection.

Description

electrical connector

technical field

The invention relates to an electrical connector, and in particular to an electrical connector suitable for high-speed transmission (eg, 12.5Gbps).

Background technique

Conventional PCI (Peripheral Component Interconnect) connectors still have a lot of room for improvement in terms of improving the transmission rate. For example, the TCA (Telecom Computing Architecture) connector in the PCI connector includes several pairs of signal strips and several ground strips, and these pairs of signal strips and ground strips are staggered, so that each signal strip A grounding sheet is provided, and the above-mentioned signal sheet is shielded through the grounding sheet to reduce the possibility of signal interference.

Wherein, the ground plates of the TCA connector are structurally and electrically separated from each other, so the measurement of the crosstalk characteristic of the TCA connector is susceptible to interference, which is not conducive to further improving the transmission rate of the TCA connector.

Therefore, the author of this work feels that the above-mentioned defects can be improved, and Naite devotes himself to research and cooperates with the application of academic theories, and finally proposes a design that is reasonable and effectively improves the above-mentioned defects.

Utility model content

The embodiment of the invention is to provide an electrical connector, which can effectively improve the lack of conventional connectors, thereby increasing the transmission rate.

The embodiment of the present invention provides an electrical connector, comprising: a shell, which is long and defines a length direction and a width direction perpendicular to each other; several pairs of differential signal slices, each of which includes: a The rubber core includes a first end edge and a second end edge on opposite sides; A matching section protruding from the first end edge of the rubber core extending away from the direction and a positioning section protruding from the second end edge of the rubber core; several ground shielding pieces, each of which includes: a piece body; two shielding sections, the Formed by extending from one end of the sheet body; and three ground positioning sections, which are located on the side of the sheet body away from the two shielding sections; wherein, the pairs of differential signal sheets and the ground shielding sheets are installed on the housing, and the pairs of The differential signal slices and these ground shielding slices are arranged in a row along the length direction, and a pair of differential signal slices is arranged between any two adjacent ground shielding slices. The shielding segment of the adjacent ground shield sheet is completely shielded; and three series connection pieces are installed in the shell, each series connection piece is formed with several notches arranged at intervals, and the distance between two adjacent notches Roughly the distance between two adjacent pieces of body, each serial connection piece is fastened to the piece body of these ground shielding pieces with its notch, so that these ground shielding pieces can achieve electrical communication through any series connection piece .

Preferably, two of the three serial connectors are respectively located on the opposite outer sides of the two signal terminals of each differential signal slice, and the other serial connector of the three serial connectors is located on each Between the two signal terminals of the differential signal slice.

Preferably, in each ground shielding piece, an end edge of the piece body away from the grounding positioning sections is provided with a groove at a position between the two shielding sections; and one of the three series connection pieces The connectors are fastened to the body parts of the ground shielding sheets adjacent to the groove bottoms of the respective grooves with their notches.

Preferably, the serial connection piece that is fastened to the part of the sheet body adjacent to the bottom of each groove of the ground shielding sheets does not protrude out of the groove openings of the ground shielding sheets.

Preferably, the three serial parts and the sheet bodies of the ground shielding sheets jointly define a shielding grid structure, and the shielding grid structure includes several shielding grid areas; The area that is shielded by the adjacent series connectors and is simultaneously shielded by the sheet bodies of two adjacent ground shielding sheets in the length direction is defined as a shielding grid area, and each shielding grid area accommodates a For the signal terminal partial block of one of the differential signal slices and the adjacent signal terminal partial block of the other differential signal slice.

Preferably, each serial connection is roughly comb-shaped and has several comb teeth; in each serial connection, any two adjacent comb teeth are defined with a notch and formed at a position corresponding to the notch There are two bumps facing each other, and the distance between any two bumps facing each other is smaller than the thickness of the body of any ground shielding sheet.

Preferably, three ground positioning sections of any two adjacent ground shielding sheets and the positioning sections of the pair of differential signal sheets between the two adjacent ground shielding sheets are roughly aligned along the width direction, and the width Two mutually coupled positioning segments are arranged between any two adjacent ground positioning segments in the direction.

Preferably, the housing defines a height direction perpendicular to the length direction and the width direction, the housing has an insulating shell and a bottom plate mounted on the insulating shell, the pairs of differential signal plates are installed with the ground shielding plates Between the insulating shell and the bottom plate, and the positioning sections of the pairs of differential signal pieces and the grounding positioning sections of the ground shielding pieces pass through the bottom plate, an insertion opening is formed at the end of the insulating shell away from the bottom plate, and The surface of the shell away from the insertion port is defined as an abutment surface, and the fixed section of each signal terminal has a first section connected to the mating section; in each pair of differential signal slices, any differential signal slice When the first section is forward projected toward another differential signal sheet along the length direction, a projection area is formed on the adjacent first section of the other differential signal sheet, and the shortest distance between the projection area and the contact surface , the height corresponding to the height direction is defined as a first height, and the first height is not greater than 2 millimeters.

Preferably, in each signal terminal, the fixed section has a second section connected to the first section and the positioning section, the second section includes a dislocation portion and an extension portion, and the dislocation portion is connected to In the first section, and the first section and the dislocation part are located on a plane perpendicular to the length direction, the positioning section is located on another plane perpendicular to the length direction, and the The extension part connects the dislocation part and the positioning section; the height of each extension part corresponding to the height direction is defined as a second height, and the second height is smaller than the first height.

Preferably, the extensions are accommodated in the bottom plate, and the thickness of the bottom plate is smaller than the first height; the first height is further defined as not greater than 1.04 mm.

To sum up, in the electrical connector provided by the embodiment of the present invention, all the ground shielding pieces can be electrically connected through any serial connection, so that the electrical connector can have a better performance in reducing crosstalk. effect, and can effectively solve related resonance problems to effectively increase the transmission rate of electrical connectors

In order to further understand the characteristics and technical content of this creation, please refer to the following detailed description and drawings about this creation. However, the attached drawings are only for reference and illustration, and are not used to limit the scope of rights of this creation. .

Description of drawings

FIG. 1 is a three-dimensional schematic diagram of the electrical connector of the present invention.

FIG. 2 is a three-dimensional schematic diagram of another viewing angle of the electrical connector of the present invention.

FIG. 3A is an exploded perspective view of FIG. 1 omitting the insulating case.

FIG. 3B is a partially enlarged schematic view of FIG. 3A .

FIG. 3C is a schematic plan view of FIG. 1 omitting the insulating case.

FIG. 3D is a schematic three-dimensional cross-sectional view (1) of FIG. 1 omitting the insulating case.

FIG. 3E is a schematic three-dimensional cross-sectional view (2) of FIG. 1 omitting the insulating case.

FIG. 3F is a three-dimensional cross-sectional schematic view (3) of FIG. 1 omitting the insulating case.

4A is a schematic plan view of a pair of differential signal plates and adjacent ground shielding plates of the electrical connector of the present invention.

FIG. 4B is a schematic cross-sectional view along line X-X in FIG. 1 .

FIG. 5A is a three-dimensional schematic diagram of a pair of differential signal plates of the electrical connector of the present invention.

FIG. 5B is a partial schematic diagram of the two-phase coupled signal terminals in FIG. 5A .

FIG. 6A is a schematic plan view of a single differential signal slice of the electrical connector of the present invention.

FIG. 6B is a partial schematic diagram of the signal terminals in FIG. 6A .

FIG. 7 is a three-dimensional schematic diagram of a single ground shielding sheet of the electrical connector of the present invention.

FIG. 8 is a schematic plan view of FIG. 7 .

FIG. 9 is a schematic side view of FIG. 7 .

FIG. 10 is a schematic perspective view of another embodiment of the ground shielding sheet of the electrical connector of the present invention. as well as

FIG. 11 is a schematic side view of FIG. 10 .

Detailed ways

Please refer to Figures 1 to 11, which are an embodiment of this creation. It should be explained first that the relevant quantities and shapes mentioned in this embodiment correspond to the drawings, and are only used to specifically illustrate the creation of this invention. Implementation methods, in order to understand its content, but not to limit the scope of rights of this creation. This embodiment provides an electrical connector 100, which is suitable for high-speed transmission (such as: the transmission rate can preferably reach 12.5Gbps), and the type of the electrical connector 100 in this embodiment is suitable for plug-in boards The TCA connector of the present invention is taken as an example, but the type of the electrical connector 100 of the present invention is not limited thereto.

1 to 3A, the electrical connector 100 includes a long insulating shell 1, several pairs of differential signal plates 2, several ground shielding plates 3, three series connectors 4, and an insulated The bottom plate 5 of the housing 1 . The combination of the insulating case 1 and the bottom plate 5 is defined as a casing 10 in this embodiment, and the casing 10 defines a length direction L, a width direction W, and a height direction H perpendicular to each other. The opposite ends (such as top and bottom) of the differential signal sheet 2 and the ground shielding sheet 3 are respectively inserted into the insulating case 1 and the bottom plate 5 and arranged in a row along the length direction L, and any two adjacent grounding sheets A pair of differential signal plates 2 are arranged between the shielding plates 3 . The signal transmission part of each pair of differential signal plates 2 in the insulating housing 1 (ie, the fixed section 221 and the mating section 222 as described below) is completely shielded by its adjacent ground shielding plate 3 in the length direction L. It should be explained that the "complete" occlusion in this embodiment means that the occluded object cannot be seen when viewed from a specific direction.

It should be noted that the insulating housing 1 has a mounting surface 11 (equivalent to the bottom surface of the insulating housing 1 in FIG. 2 ), two positioning posts 12 , and an insertion opening 13 on the opposite side of the mounting surface 11 . Wherein, the above-mentioned positioning column 12 is integrally formed by respectively extending from two ends of the installation surface 11 in the length direction L. As shown in FIG. And the mounting surface 11 forms a mounting opening 111 between the two positioning columns 12, for the differential signal plate 2, the ground shielding plate 3, the serial connection piece 4, and the bottom plate 5 to be installed in the insulating housing 1. . The insertion port 13 is formed at one end of the insulating housing 1 away from the bottom plate 5 (the top of the insulating housing 1 as shown in FIG. 1 ), for inserting a card or a corresponding connector (not shown). Furthermore, the housing 10 has an abutting surface (eg, the installation surface 11 or the bottom surface of the bottom plate 5 ) on the opposite side of the insertion opening 13 . When the electrical connector 100 is installed on a circuit board (not shown), the positioning column 12 of the insulating housing 1 will be inserted into the circuit board, and the mounting surface 11 is roughly abutted against the surface of the circuit board. Wherein, the abutting surface of the housing 10 in this embodiment is the bottom surface of the base plate 5 as an example, but the definition of the abutting surface is the surface of the housing 10 away from the insertion opening 13 (that is, it is equivalent to abutting against the surface of the circuit board. surface of the shell 10), in other words, in another embodiment not shown, if the surface of the shell 10 away from the insertion port 13 is the mounting surface 11 of the insulating shell 1 (equivalent to the abutment of the mounting surface 11 of the insulating shell 1 On the surface of the circuit board), the abutting surface of the housing 10 is the mounting surface 11 of the above-mentioned insulating housing 1 .

Please refer to FIG. 4A to FIG. 6B. The structures of the differential signal plates 2 of these pairs are roughly the same, so only a pair of differential signal plates 2 and their adjacent ground shielding plates 3 are shown in FIG. 4A. In FIGS. 5A and 5B Only one pair of the differential signal slices 2 is shown, and only one of the differential signal slices 2 is shown in FIG. 6A and FIG. 6B , for the purpose of explaining its structure below.

As shown in FIG. 6A and FIG. 6B , each differential signal sheet 2 includes a sheet-shaped rubber core 21 and two strip-shaped signal terminals 22 . The rubber core 21 includes a first end edge 211 and a second end edge 212 on opposite sides (such as the top edge and the bottom edge of the rubber core 21 in FIG. 6A ), and each signal terminal 22 has an embedded rubber A fixed section 221 of the core 21, and from opposite ends of the fixed section 221 (such as the top and bottom ends of the fixed section 221 in FIG. The matching section 222 and a positioning section 223 protrude from the second edge 212 of the rubber core 21 .

Wherein, each rubber core 21 is recessed with a groove 213 from the first end edge 211 between the above two fixing sections 221, and each rubber core 21 is formed with two inserting joints corresponding to the second end edge 212. block 214, and the two positioning segments 223 respectively protrude from the two plug-in blocks 214. Moreover, the rubber core 21 of each differential signal chip 2 and the fixing section 221 and the mating section 222 of the signal terminal 22 are roughly accommodated in the space surrounded by the insulating casing 1 and the bottom plate 5, and the positioning section of each differential signal chip 2 223 is exposed outside the space enclosed by the insulating case 1 and the bottom plate 5 (as shown in FIG. 2 ). It should be noted that the outer surfaces of the fixing section 221 and the mating section 222 of the signal terminal 22 can be roughly divided into two wide surfaces perpendicular to the length direction L and a narrow surface surrounding the outer edges of the two wide surfaces.

More specifically, in each signal terminal 22, the fixing section 221 has a connected straight first section 2211 and a curved second section 2212, and is far away from the second section 2212 of the second section 2212. One end of a segment 2211 (like the top of the first segment 2211 in FIG. 6A ) is connected to the mating segment 222, and one end of the second segment 2212 away from the first segment 2211 (like the bottom of the second segment 2212 in FIG. 6A ). end) is connected to the positioning section 223.

As shown in Figures 4A to 5A, in each pair of differential signal slices 2, when the first segment 2211 of any differential signal slice 2 is orthographically projected toward the other differential signal slice 2 along the length direction L, the other differential signal slice A projected area (not marked) is formed on the adjacent first section 2211 of the sheet 2, and the shortest distance between the projected area and the abutting surface of the housing 10 (ie equivalent to the circuit board surface on which the electrical connector 100 is installed), Its height corresponding to the height direction H is defined as a first height H ₁ , and the first height H ₁ is not greater than 2 mm in this embodiment.

It should be noted that, since there is a slight gap (about 0.2 mm) between the second end edge 212 of the rubber core 21 and the contact surface of the housing 10 in this embodiment, if each pair of differential signal chips is changed to 2, the shortest distance between the projection area and the second end edge 212 of the rubber core 21 of the differential signal chip 2 is not greater than 1.8 mm in this embodiment, but this is not to limit the first defined in this creation Height H ₁ .

In addition, according to the results presented through multiple experiments, when the first height H ₁ is not greater than 1.04 mm, the transmission rate of the electrical connector 100 will have a more prominent effect. This can also be considered in this embodiment: the shortest distance between the projected area and the second end edge 212 of the rubber core 21 of the differential signal chip 2 is not greater than 0.84 mm.

Furthermore, in the length direction L, the first section 2211 of any differential signal slice 2 in each pair of differential signal slices 2 and the adjacent first section 2211 of the other differential signal slice 2, both The profiles of are aligned with each other and form a broadside coupling arrangement. Wherein, the above-mentioned broadside coupling is generally described as follows: the first segment 2211 of any differential signal segment 2 in each pair of differential signal segments 2 is adjacent to the first segment 2211 of another differential signal segment 2 , which are adjacent to each other. The wide surfaces thereof face each other and are approximately parallel to each other, so as to form broadside coupling in the above-mentioned length direction L when transmitting signals. Thereby, through the above-mentioned design (such as: the numerical limit of the _first height H1), the coupling length between each pair of differential signal plates 2 can be effectively improved, thereby having a preferred coupling effect, and can effectively reduce Noise forms interference between each pair of differential signal slices 2 .

The second section 2212 of each pair of differential signal chips 2 is formed by bending and extending from the connected first section 2211 , and the positioning sections 223 of each pair of differential signal chips 2 are arranged in a row along the width direction W. In the width direction W, the second segment 2212 of any differential signal segment 2 in each pair of differential signal segments 2 and the adjacent second segment 2212 of another differential signal segment 2 form a narrow-edge coupling arrangement. set up.

Wherein, as far as each signal terminal 22 is concerned, as shown in FIG. 6A and FIG. 6B, the second section 2212 includes a dislocation portion 2212a and an extension portion 2212b, and the above dislocation portion 2212a is connected to the first section 2211, and The dislocation portion 2212a and its connected first section 2211 are located on _a plane P1 perpendicular to the length direction L. As shown in FIG. The positioning section 223 is located _on another plane P2 perpendicular to the length direction L, and the extension part 2212b connects the dislocation part 2212a and the positioning section 223 . Moreover, the extension portion 2212b is substantially embedded in the socket block 214 of the rubber core 2 .

Furthermore, in each signal terminal 22, the angle _θ1 formed between the extension portion 2212b and the dislocation portion _2212a is inward with the angle θ2 formed between the extension portion 2212b and the positioning section 223. Wrong angle configuration. The aforementioned included angles Θ ₁ and Θ ₂ are approximately 135 degrees in this embodiment, but are not limited thereto. And the height of each extension portion 2212b corresponding to the height direction H is defined as a second height H ₂ (as shown in FIG. 4B ), and the second height H ₂ is smaller than the first height H ₁ .

When viewed from each pair of differential signal slices 2, as shown in FIG. 5A and FIG. 5B, in any two signal terminals 22 coupled to each other with broadsides, the two dislocation parts 2212a are separated from the connected first section 2211 by the width The directions W are formed by extending toward the sides away from each other. In this way, the two signal terminals 22 coupled to each other will be designed through the offset portion 2212a, so that the positions of the extension portion 2212b and the positioning section 223 connected to the two offset portions 2212a in the width direction W can be offset from each other.

Furthermore, in any two signal terminals 22 coupled to each other with broadsides, the plane P1 where the _first segment 2211 and the dislocation portion 2212a of each signal terminal 22 are located is located on the plane P2 where the _two positioning segments 223 are located respectively. (Please refer to FIG. 6B ); and, the two signal terminals 22 coupled with each other will pass through the design of the extension part 2212b, so that the two positioning segments 223 connected by the two extension parts 2212b can be close to each other and in the width direction W Roughly lined up in the same row.

As shown in FIG. 6A, in each differential signal chip 2, the shortest distance between the inner edges of the two matching sections 222 adjacent to each other defines a clamping opening 2221, and one end of the two matching sections 222 away from the rubber core 21 Parts (such as the top end part of the matching section 222 in FIG. 6A ) are formed with the above-mentioned clamping openings 2221 and are each defined as a head part 2222 . Furthermore, in the length direction L (as shown in FIG. 4A ), the matching segment 222 of any differential signal chip 2 in each pair of differential signal chips 2 and the adjacent matching segment 222 of another differential signal chip 2 have contours mutually Cut and form a broadside coupled arrangement setup.

The positioning section 223 is an example of a fisheye structure in this embodiment, and the position of each positioning section 223 is suitable for the fisheye hole 2231 of the above-mentioned fisheye structure to be penetrated by the length direction L, that is to say, the The central axis of the fisheye hole 2231 of the positioning section 223 is parallel to the length direction L. As shown in FIG. However, the positioning section 223 of the present invention is not limited to the fish-eye configuration. For example, the positioning section 223 can also be formed into a structure suitable for surface mount technology (SMT).

Please refer to FIG. 7 to FIG. 9 , the structures of these ground shielding sheets 3 are substantially the same, so only one of the ground shielding sheets 3 is shown in FIG. 7 to FIG. 9 for the purpose of explaining its structure below.

Each ground shielding sheet 3 includes a sheet body 31, two strip-shaped shielding sections 32 extending from one end of the sheet body 31 (as shown in the top of the sheet body 31 in Figure 7 ), and from the other end of the sheet body 31 (as shown in Figure The bottom end of the chip body 31 in 7) extends in sequence with three elongated extension sections 33 and three ground positioning sections 34. That is to say, the extension section 33 and the ground positioning section 34 are located on the side of the sheet body 31 away from the two shielding sections 32 (as shown in the lower side of the sheet body 31 in Figure 7), and one end of the three extension sections 33 is respectively connected to the side away from the two shielding sections 32. One end of the sheet body 31 of the two shielding sections 32 (such as the bottom end of the sheet body 31 in FIG. 7 ), and the other ends of the three extension sections 33 are respectively connected to the three ground positioning sections 34 .

Wherein, the sheet body 31 and the shielding segment 32 of each grounding shielding sheet 3 are roughly accommodated in the space surrounded by the insulating casing 1 and the bottom plate 5, and the grounding positioning section 34 of each grounding shielding sheet 3 is exposed between the insulating casing 1 and the bottom plate 5. Outside the space surrounded by the bottom plate 5 (as shown in Figure 2). It should be noted that the outer surfaces of the main body 31 and the shielding section 32 of the ground shielding sheet 3 can be roughly divided into two wide surfaces perpendicular to the length direction L and a narrow surface surrounding the outer edges of the two wide surfaces.

Please refer to FIG. 7, in each ground shielding sheet 3, one end edge of the sheet body 31 (like the top edge of the sheet body 31 in FIG. A groove 311 is recessed in the part, and the distance between the bottom of the groove 311 and the bottom plate 5 is greater than the distance between the bottom of the groove 213 of the rubber core 21 of any signal terminal 2 and the bottom plate 5; One end of the chip body 31 (eg, the bottom of the chip body 31 in FIG. 7 ) is provided with an insertion portion 312 between any two adjacent ground positioning segments 34 .

More specifically, as shown in FIG. 3A and FIG. 4A , the fixed section 221 of each pair of differential signal chips 2 is completely shielded by the chip body 31 of its adjacent ground shielding chip 3 in the length direction L. In each ground shielding sheet 3 , the sheet body 31 has a structure without holes, so as to completely cover the fixed section 221 of the adjacent differential signal sheet 2 in the length direction L. As shown in FIG.

The mating section 222 of each pair of differential signal plates 2 is completely shielded by the shielding section 32 of its adjacent ground shielding plate 3 in the length direction L. As shown in FIG. And in each ground shielding piece 3 (as shown in Figure 8), the shortest distance between the inner edges of the two shielding sections 32 adjacent to each other defines a clamping opening 321, and one end of the two shielding sections 32 away from the sheet body 31 Parts (such as the top end part of the shielding section 32 in FIG. 8 ) are formed with clamping openings 321 and are each defined as a head part 322 .

Wherein, on a plane vertical to the length direction L (as shown in FIG. 4A ), the area of the head portion 322 of the shielding section 32 of each ground shielding sheet 3 is larger than that of any adjacent signal terminal 22 (that is, the mating section 222 of the signal terminal 22 Head 2222) area. In this embodiment, on the plane corresponding to the vertical length direction L, the area of the head 322 of each shielding segment 32 is roughly twice that of any adjacent signal terminal 22 (ie, the head 2222 of the mating segment 222). area, but the area ratio between the head 322 of the shielding section 32 and the head 2222 of the mating section 222 is not limited thereto. Furthermore, on a plane perpendicular to the longitudinal direction L, the area of the portion other than the head portion 322 of each shielding segment 32 is approximately equal to that of any adjacent signal terminal 22 (that is, the head portion of the signal terminal 22 mating segment 222 ). area other than 2222).

Thereby, through the relative shape and area design of the shielding section 32 of the ground shielding sheet 3 and the mating section 222 of the adjacent differential signal sheet 2, especially the area of the head portion 322 of the shielding section 32 is larger than the adjacent mating section 222. The area of the head 2222 makes the shielding effect of the ground shielding sheet 3 corresponding to the differential signal sheet 2 can be effectively improved, and can relieve the differential impedance fluctuation of the differential signal sheet 2, thereby having preferred S parameters (such as: insertion loss, reflection loss, crosstalk).

Further, as shown in FIG. 8 , in each ground shielding sheet 3 , the inner edges of the two heads 322 adjacent to each other include a guide side edge 323 , and the guide side edges of the two heads 322 323 one end (such as the guide side edge 323 bottom end in Figure 8 ) defines the clamping opening 321, and the other end of the guide side edge 323 of the two heads 322 (such as the guide side edge 323 in Figure 8 323) are respectively the end edges of the two shielding segments 32. In the length direction L, the leading side edge 323 of each ground shielding sheet 3 and the edge of the adjacent signal terminal 22 are aligned with each other (as shown in FIG. 4A ), so as to facilitate the board to pass through the leading side of the grounding shielding sheet 3 The guide of the edge 323 and the edge of the adjacent signal terminal 22 is sandwiched between the clamping opening 321 of the ground shielding sheet 3 and the clamping opening 2221 of the differential signal sheet 2 .

As shown in FIG. 9 , the opposite ends of each extension section 33 are angularly connected to the sheet body 31 and the corresponding grounding positioning section 34 respectively, and a gap is formed between the extension section 33 and the sheet body 31 connected thereto. The included angle Θ ₃ and the included angle Θ ₄ formed between the extension section 33 and its connected ground positioning section 34, the two included angles Θ ₃ and Θ ₄ are roughly in the configuration of an internally staggered angle (Θ ₃ =Θ ₄ ), so that each ground positioning segment 34 can be spaced from and parallel to the sheet body 31 on a plane perpendicular to the length direction L.

In the present embodiment, as shown in FIG. 9, the lengths of the extensions 33 are approximately the same and parallel to the length direction L (that is, the above-mentioned included angles Θ ₃ and Θ ₄ are approximately 90 degrees at right angles), And these extensions 33 are all located on the same side of the sheet body 31 (as shown in the lower left side of the sheet body 31 in Figure 9), so that these ground positioning segments 34 of any ground shielding sheet 3 are all roughly located on the same plane _P3 , but this creation is not limited to the above structure.

For example, all the ground positioning sections 34 of any ground shielding sheet 3 may not be located on the same plane, but it must meet that each ground positioning section 34 is located on a plane perpendicular to the length direction L and can be spaced from the sheet body 31. and parallel to each other. As shown in Figure 10 and Figure 11, any two adjacent grounding positioning sections 34 in the grounding shielding sheet 3 are located on two different and parallel planes P _{- 3} and P4, and any two of the grounding shielding sheet 3 The remote ground locating segments 34 lie on the same plane _P3 .

Thereby, through the bending design of the extension section 33, the ground shielding sheet 3 can make each ground positioning section 34 be located on a plane perpendicular to the length direction L and be spaced from and parallel to the sheet body 31, thereby effectively avoiding The chip body 31 produces a hole, so that the shielding effect of the ground shielding sheet 3 corresponding to the differential signal sheet 2 can be effectively improved, and the differential impedance fluctuation of the differential signal sheet 2 can be relieved, and then there are preferred S parameters (such as: insertion loss, reflection loss, crosstalk).

In addition, the ground positioning segment 34 in this embodiment is an example of the same fish-eye structure as the above-mentioned positioning segment 223, and the position of each ground positioning segment 34 is also suitable for the length direction L to penetrate the above-mentioned fish-eye structure The fisheye hole 341, that is, the central axis of the fisheye hole 341 of the ground positioning section 34 is parallel to the length direction L. However, the ground positioning section 34 of the present invention is not limited to the fish-eye configuration. For example, the ground positioning segment 34 can also be formed into a structure suitable for surface mount technology (SMT).

Please refer to FIG. 3A and FIG. 4A, three of the ground positioning sections 34 of any two adjacent ground shielding sheets 3 and the positioning section 223 of the pair of differential signal sheets 2 between the above two adjacent ground shielding sheets 3 They are aligned substantially in the width direction W. Moreover, two positioning segments 223 for signal terminals 22 coupled to each other are provided between any two adjacent ground positioning segments 34 in the width direction W.

Further, when the electrical connector 100 adopts the ground shielding sheet 3 shown in FIG. The width directions W are arranged in a row (as shown in FIG. 3A ). When the electrical connector 100 adopts the ground shielding sheet 3 shown in FIG. The centrally located ground positioning section 34 is substantially aligned with the positioning section 223 of the pair of differential signal plates 2 located between the two adjacent ground shielding plates 3 along the width direction W (not shown).

Please refer to Fig. 3A and Fig. 3B, described three serial connection parts 4 are respectively installed in the insulating housing 1, wherein two series connection parts 4 of the above-mentioned three series connection parts 4 (as shown in Fig. 3A on the left side and The serial connectors 4 on the right are respectively located on the opposite outer sides of the two signal terminals 22 of each differential signal slice 2, while the other serial connector 4 of the three serial connectors 4 (located in the center as shown in FIG. 3A The serial connectors 4) are located between the two signal terminals 22 of each differential signal sheet 2, and are respectively connected to the ground shields 3 through these serial connectors 4, so that the ground shields 3 pass through any string Connector 4 can achieve electrical communication. In this way, the electrical connector 100 can have a better effect in reducing crosstalk, and can effectively solve related resonance problems.

More specifically, the serial connection elements 4 in this embodiment have substantially the same structure, and a structural description of one of the serial connection elements 4 will be made below. The serial connection piece 4 is in the shape of a long sheet and its long axis direction is roughly parallel to the length direction L. One of the long edges of the series connection piece 4 is recessed with several notches 41 arranged at intervals, and two adjacent The distance between the notches 41 is approximately the distance between two adjacent pieces of the body 31 . Looking at it from another perspective, the serial connector 4 is roughly comb-shaped and has several comb-tooth portions 42 , and any two adjacent comb-tooth portions 42 define the above-mentioned one notch 41 . Any two adjacent comb portions 42 are formed with two facing protrusions 421 corresponding to the notches 41 , and the distance between any two facing protrusions 421 is slightly smaller than the thickness of the sheet body 31 of the ground shielding sheet 3 .

Furthermore, the serial connectors 4 are fastened to the sheet bodies 31 of these ground shielding sheets 3 with their notches 41, so that the serial connectors 4 and any sheet body 31 are approximately perpendicular to each other, and correspond to each notch. The two protrusions 421 of 41 are tightly against the wide surface of the chip body 31 located in the notch 41 . Looking at it from another perspective, the parts of the ground shielding pieces 3 connected to the series connector 4 are roughly arranged in a row along the length direction L.

It should be noted that, among the three serial connectors 4, the serial connector 4 located in the center is fastened to the sheet body 31 of the ground shielding sheet 3 adjacent to the groove bottom of each groove 311 by its notch 41 respectively. position, and its comb portion 42 is accommodated in the groove 213 of the rubber core 21 of each pair of differential signal plates 2 (as shown in Figure 3E); 3 grooves 311 notches.

Further, referring to FIG. 3F , the three series connectors 4 and the sheet bodies 31 of the ground shielding sheets 3 jointly define a shielding grid structure, and the above-mentioned shielding grid structure includes two rows of Several shielded grid areas G. Wherein, the specific definition of the shielding grid area G is as follows: it is shielded by two adjacent series connectors 4 in the width direction W and simultaneously shielded by the sheet bodies 31 of two adjacent ground shielding sheets 3 in the length direction L The region is defined as a shielded grid region G. In other words, any one of the shielding grid regions G in this embodiment is formed by being jointly surrounded by two adjacent series connectors 4 and the sheet bodies 31 of two adjacent ground shielding sheets 3 .

Furthermore, each shielding grid area G accommodates a partial block of the signal terminal 22 of one of the differential signal slices 2 of a pair of differential signal slices 2 and a partial block of the adjacent signal terminal 22 of the other differential signal slice 2 . (That is, the partial blocks of the two signal terminals 22 that are coupled). In this embodiment, the partial blocks of the signal terminals 22 accommodated in the shielding grid area G are part of the first section 2211 and part of the matching section 222 connected thereto. From another point of view, the partial blocks of the signal terminals 22 accommodated in the shielding grid area G correspond to the height in the height direction H, that is, each shielding grid area G corresponds to the height in the height direction H, This is a third height H ₃ shown in FIG. 3C in this embodiment.

It should be additionally noted that, in this embodiment, the metal sheet is fastened to the ground shielding sheet 3 as an example, but it is not limited thereto. For example, the material of the series connector 4 can also be that an insulating plate is provided with a conductive circuit, and these ground shielding sheets 3 are connected with the conductive circuit; or, the connection mode between the serial connector 4 and the ground shielding sheet 3 It can also be implemented by welding, crimping, or other various equivalent methods.

3A to 3E, the bottom plate 5 is installed in the insulating housing 1, so that the above-mentioned differential signal sheet 2 and the ground shielding sheet 3 are installed between the insulating housing 1 and the bottom plate 5, and the differential signal The positioning section 223 of the sheet 2 and the grounding positioning section 34 of the grounding shielding sheet 3 pass through the bottom plate 5 .

Wherein, the thickness of the bottom plate 5 is smaller than the first height H ₁ , and the bottom plate 5 is formed with several through holes 51 and several slots 52 (as shown in FIG. 3B ). The two plug-in blocks 214 of each differential signal sheet 2 are engaged with the two plug-in blocks 214 of the coupled differential signal sheet 2 respectively, so that the two-phase connected plug-in blocks 214 are jointly inserted in a through hole 51 (such as FIG. 3D ), so that its extension 2212b is accommodated in the through hole 51 of the base plate 5; and the two inserting portions 312 of each ground shielding sheet 3 are inserted in the two slots 52 of the base plate 5 (as shown in FIG. 3D).

[Possible effects of this creative embodiment]

To sum up, in the electrical connector provided by the embodiment of the present invention, all the grounding shields in the electrical connector can be electrically connected through any serial connection, so that the electrical connector can reduce crosstalk. It has a good effect, and can effectively solve the related resonance problem, so as to effectively improve the transmission rate of the electrical connector.

Furthermore, the electrical connector of this embodiment limits the value of the first height to not greater than 2 mm, so that the coupling length between each pair of differential signal plates can be effectively increased, and thus has a preferred S parameters, so as to effectively increase the transmission rate of the electrical connector.

In addition, the inventive embodiment can further make the contours of the first section of any differential signal slice in each pair of differential signal slices and the adjacent first section of another differential signal slice cut each other in the length direction. Align and form a wide-side coupling arrangement, so that the coupling length between each pair of differential signal chips is not only effectively improved, but also can have an optimal coupling effect and reduce noise interference between each pair of differential signal chips, so as to effectively Greatly increase the transmission rate of the electrical connector.

Moreover, in each pair of differential signal slices, the two signal terminals that are coupled to each other will be designed through the design of the dislocation part, so that the positions of the extension part and the positioning section connected by the two dislocation parts in the width direction can be staggered from each other. Moreover, through the design of the extension parts of the two mutually coupled signal terminals, the two positioning sections connected by the two extension parts can be close to each other and roughly arranged in the same row.

The above is only the preferred feasible embodiment of this creation, and it is not used to limit the patent scope of this creation. All equal changes and modifications made according to the patent scope of this creation should fall within the scope of this creation.

【Symbol Description】

100 electrical connectors

10 shell

1 insulating case

11 Mounting surface

111 Mounting port

12 positioning post

13 Socket

2 differential signal slices

21 rubber core

211 first edge

212 second end edge

213 Groove

214 plug block

22 Signal terminals

221 fixed section

2211 Section 1

2212 Second section

2212a Dislocation Department

2212b extension

222 Cooperating section

2221 Clamping port

2222 head

223 positioning segment (such as: fisheye structure)

2231 fish eye hole

3 Ground shield

31 piece body

311 groove

312 socket

32 shielded segments

321 Clamping port

322 head

323 leading edge

33 extension

34 Ground positioning section (eg: fisheye structure)

341 fish eye hole

4 series connectors

41 notch

42 comb teeth

421 bump

5 bottom plate

51 through holes

52 slots

L Length direction

W Width direction

H height direction

Θ ₁ ～Θ ₄ included angle

P _-1 ～P ₄ plane

H _-1 , H ₂ , H ₃ height

G Masks the grid area.

Claims (10)

1. An electrical connector, characterized in that, comprising: A shell, which is elongated and defines a length direction and a width direction perpendicular to each other; Pairs of differential signal slices, each of which contains: A rubber core, which includes a first end edge and a second end edge on opposite sides; and The two signal terminals each have a fixed section embedded in the rubber core, and a mating section extending from opposite ends of the fixed section in a direction away from each other to protrude from the first end edge of the rubber core and protrude from the second edge of the rubber core. A locating segment of the end edge; a plurality of ground shields, each containing: a slice body; two shielding sections extending from one end of the sheet body; and Three ground positioning sections, which are located on the side of the sheet body away from the two shielding sections; Wherein, the pair of differential signal sheets and the ground shielding sheet are installed in the housing, and the pair of differential signal sheets and the ground shielding sheet are arranged in a row along the length direction, and any two adjacent ground shielding sheets There is a pair of differential signal slices between them, and the mating section of each pair of differential signal slices is completely shielded by the shielding section of its adjacent ground shielding slice in the length direction; and Three serial connectors, which are installed in the shell, each serial connector is formed with several notches arranged at intervals, and the distance between two adjacent notches is roughly the distance between two adjacent bodies, each Each of the serial connectors is fastened to the sheet body of the ground shielding sheet through its notches, so that the ground shielding sheet can be electrically connected through any serial connector. 2. The electrical connector according to claim 1, wherein two of the three series connection pieces are respectively located on the two opposite outer sides of the two signal terminals of each differential signal slice, and the three series connection pieces The other serial connection of the components is located between the two signal terminals of each differential signal slice. 3. The electrical connector according to claim 2, wherein, in each ground shielding piece, an end edge of the piece body away from the ground positioning section is provided with a recess at a position between the two shielding sections. slot; and one of the three series connection pieces is fastened with its notch to the sheet body part of the ground shielding sheet adjacent to the groove bottom of each groove. 4. The electrical connector according to claim 3, wherein, the serial connection piece that is fastened to the sheet body portion of the ground shielding sheet adjacent to the bottom of each groove does not protrude out of the ground shielding sheet Groove notch. 5. The electrical connector according to claim 2, wherein the three serial parts and the sheet body of the ground shielding sheet jointly define a shielding grid structure, and the shielding grid structure includes several shielding grids. Mesh area; wherein, the area that is shielded by two adjacent serial parts in the width direction and is shielded by the sheet bodies of two adjacent ground shielding sheets in the length direction is defined as a shielding network Each shielded grid area accommodates a partial block of signal terminals of one of the differential signal slices of a pair of differential signal slices and a partial block of adjacent signal terminals of the other differential signal slice. 6. The electrical connector according to any one of claims 1 to 5, wherein each serial connection is substantially comb-shaped and has several comb teeth; in each serial connection, any two adjacent A notch is defined on the comb-tooth portion of the comb, and two protruding blocks facing each other are formed corresponding to the notch, and the distance between any two protruding blocks facing each other is smaller than the sheet body thickness of any ground shielding sheet. 7. The electrical connector according to claim 6, wherein three of the ground positioning sections of any two adjacent ground shielding sheets are connected to the positioning section of the pair of differential signal sheets between the two adjacent ground shielding sheets They are roughly arranged in a row along the width direction, and two mutually coupled positioning segments are arranged between any two adjacent ground positioning segments in the width direction. 8. The electrical connector according to claim 7, wherein the shell defines a height direction perpendicular to the length direction and the width direction, the shell has an insulating shell and a bottom plate mounted on the insulating shell , the pair of differential signal sheets and the ground shielding sheet are installed between the insulating housing and the bottom plate, and the positioning section of the pair of differential signal sheets and the ground positioning section of the ground shielding sheet pass through the bottom plate, An insertion opening is formed at one end of the insulating housing away from the bottom plate, and a surface of the housing away from the insertion opening is defined as an abutment surface, and the fixing section of each signal terminal has a first area connected to the mating section segment; in each pair of differential signal slices, when the first segment of any differential signal slice is orthographically projected toward the other differential signal slice along the length direction, it is formed on the adjacent first segment of the other differential signal slice A projection area, and the shortest distance between the projection area and the abutment surface, the height corresponding to the height direction is defined as a first height, and the first height is not greater than 2 mm. 9. The electrical connector according to claim 8, wherein, in each signal terminal, the fixing section has a second section connected to the first section and the positioning section, the second section includes There is a dislocation part and an extension part, the dislocation part is connected to the first section, and the first section and the dislocation part are located on a plane perpendicular to the length direction, and the positioning section is located on a vertical plane On another plane in the longitudinal direction, the extension part connects the dislocation part and the positioning section; the height of each extension part corresponding to the height direction is defined as a second height, and the second height is smaller than the first high. 10 . The electrical connector according to claim 8 , wherein the extension portion is accommodated in the bottom plate, and the thickness of the bottom plate is smaller than the first height; the first height is further defined to be not greater than 1.04 mm. 11 .