CN216120839U

CN216120839U - Connector assembly

Info

Publication number: CN216120839U
Application number: CN202121066440.9U
Authority: CN
Inventors: 王永福
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2022-03-22
Anticipated expiration: 2031-05-18

Abstract

The utility model discloses a connector assembly, comprising: the electric connector is provided with an insulating body for accommodating the conductive terminals, and the insulating body is provided with a butt joint groove and two side walls respectively positioned at two sides of the butt joint groove; the conductive terminal is provided with a first contact part, the shielding plate covers the outer sides of the two side walls and is provided with a first end surface close to the opening of the butt joint groove, and the elastic arm is bent and extended from the first end surface to the inside of the butt joint groove and is provided with a second contact part positioned in the butt joint groove; the module card inserted into the butt joint groove from the opening comprises an insulating substrate and conducting layers electrically insulated from each other through the insulating substrate, wherein each conducting layer comprises a signal transmission layer and at least one grounding shielding layer arranged on each side of the signal transmission layer, the grounding shielding layers are provided with second end faces lower than the first end faces in the inserting direction, the signal transmission layers are electrically connected with the first contact parts to form signal transmission paths, the second contact parts are electrically connected with the grounding shielding layers to form grounding shielding loops, and the signal transmission paths are located in the grounding shielding loops.

Description

Connector assembly

[ technical field ] A method for producing a semiconductor device

The present invention relates to a connector assembly, and more particularly, to a connector assembly for improving signal integrity of an electrical connector.

[ technical background ] A method for producing a semiconductor device

In the electrical field, it is usually configured to mechanically connect and electrically couple a circuit board and a plurality of module cards with each other through a plurality of electrical connectors, during signal transmission, signal crosstalk between the plurality of electrical connectors or between the electrical connectors and other signal transmission elements on the circuit board may occur, thereby affecting the high-frequency performance of signals during transmission, and therefore, in order to solve the above problem, the prior art covers a shielding shell outside the insulating body of the electrical connector, but the prior art shields only the signal transmission path at the insulating body during signal transmission, and cannot completely and effectively shield the entire signal transmission path, so that crosstalk still occurs between the plurality of electrical connectors or between the electrical connectors and other signal transmission elements on the circuit board, SI performance, which is not conducive to signal transmission; in addition, the module card in the prior art is designed to: only one grounding shielding layer is arranged between adjacent signal transmission layers to reduce crosstalk between the adjacent signal transmission layers in the signal transmission process, but the arrangement of only one grounding shielding layer can cause radiation interference to both sides of the module card in the thickness direction of the module card, and the generated electromagnetic interference can interfere with the normal operation of the adjacent module card, the electrical connector or other signal transmission elements, and can also generate unnecessary radiation loss to affect the signal integrity performance of the electrical connector.

Therefore, there is a need for a new connector assembly that overcomes the above problems.

[ Utility model ] content

It is an object of the present invention to provide a connector assembly that improves the signal integrity performance of an electrical connector.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a connector assembly, comprising:

the electric connector is provided with an insulating body, the insulating body is provided with a butt joint groove, and two side walls are arranged on two opposite sides of the butt joint groove; at least one conductive terminal, which is accommodated in the insulating body, and each conductive terminal has a first contact portion exposed out of the mating groove; the shielding plate comprises a first shielding plate and a second shielding plate, the first shielding plate and the second shielding plate are respectively arranged on the outer sides of the two side walls in a covering mode, the first shielding plate and the second shielding plate are respectively provided with a first end face close to the opening of the butt joint groove, at least one elastic arm is bent and extended from the first end face to the inside of the butt joint groove, each elastic arm is provided with a second contact part, the second contact part is located in the butt joint groove, and the second contact part is close to the opening relative to the first contact part;

a module card inserted into the docking slot from the opening, the module card including an insulating substrate and a plurality of conductive layers electrically insulated from each other by the insulating substrate,

the conducting layers comprise at least two grounding shielding layers and at least one signal transmission layer, at least one grounding shielding layer is respectively arranged on two sides of each signal transmission layer, the signal transmission layer comprises at least one signal conduction part, the grounding shielding layer comprises at least one grounding conduction part and is provided with a second end surface, in the insertion direction of the module card, the grounding lead-in part is close to the opening relative to the signal lead-in part, the second end face is far away from the opening relative to the signal conducting part, the first contact part is electrically connected with the signal conducting part to form a signal transmission path, the second contact part and the grounding conducting part are electrically connected to form a grounding shielding loop, and the signal transmission path is located in an isolation area formed by the first shielding plate, the grounding shielding layer, the other grounding shielding layer and the second shielding plate in sequential contact conduction.

Further, insulator still has and is located two end walls that just the interval set up between the lateral wall, two end wall and two lateral wall integrated into one piece, two the lateral wall is with two the end wall encloses to establish and forms the butt joint groove, each the outside of end wall all covers and is equipped with a third shield plate, the third shield plate with first shield plate second shield plate integrated into one piece.

Further, each end wall includes a fixture block, each third shield plate all includes a holding hole and certainly the opening to a shielding piece that the slot is interior to buckle and extend, the holding hole includes an end and certainly a holding piece that the end extends, the holding piece to insulator's direction deflection is in order to with fixture block cooperation joint, wherein, the shielding piece is to the slot is interior to buckle and extend in order to shield completely the holding hole.

Furthermore, each third shielding plate is also provided with a covering part, the covering part is formed by bending and extending one end of the third shielding plate close to the opening, and the covering part covers the upper end face of the end wall.

Furthermore, each third shielding plate is further provided with a grounding fixing pin, the grounding fixing pin is formed by extending one end of the third shielding plate far away from the opening, and the grounding fixing pin is used for being electrically connected with a circuit board.

Further, in the inserting direction, the first shielding plate and the second shielding plate further include a third end surface far away from the opening; the third end surface is directly electrically connected with a circuit board to form the grounding shielding loop so as to shield the signal transmission path formed by electrically connecting the conductive terminal and the circuit board.

Furthermore, each side wall is also provided with a guide block positioned on at least one side of each elastic arm, each guide block is provided with a guide inclined surface, and the guide inclined surfaces are positioned above the second contact parts in the inserting direction.

Furthermore, the shielding plate is also provided with a coating part, one end of the coating part is connected with the first end face, the other end of the coating part is connected with the elastic arm, and the coating part coats the upper end face of the side wall.

Furthermore, in the thickness direction of the module card, two sides in the insulating substrate are respectively and fixedly provided with one grounding shielding layer, and the grounding shielding layer is partially exposed on the outer surface of the insulating substrate to be electrically connected with the elastic arm to form the grounding shielding loop, wherein the thickness direction is perpendicular to the inserting direction.

Further, at least two of the ground shield layers include at least a first ground shield layer and at least a second ground shield layer, the first grounding shielding layer is closer to the shielding plate than the second grounding shielding layer, the first grounding shielding layer is provided with at least one grounding conductive part for electrically connecting with the elastic arm, the second grounding shielding layer is provided with at least two grounding contact parts, in the longitudinal direction of the module card, a plurality of signal guiding parts are arranged in a row in the longitudinal direction of the module card, two grounding contact parts are respectively arranged at two outermost sides of the signal guiding parts in the row, the conductive terminal also comprises at least two grounding terminals, the grounding terminals are electrically connected with the grounding contact part, the signal transmission path is shielded on both sides in the longitudinal direction, which is perpendicular to the insertion direction.

Compared with the prior art, the utility model has the following beneficial effects:

the electric connector comprises an insulating body provided with a butt joint groove and a shielding plate covering the insulating body, wherein the shielding plate comprises a first shielding plate and a second shielding plate, the first shielding plate and the second shielding plate are respectively provided with a first end face close to the opening of the butt joint groove, at least one elastic arm is bent and extended from the first end face towards the butt joint groove and is provided with a second contact part, a module card is inserted into the butt joint groove and comprises a plurality of conducting layers, the conducting layers comprise at least two grounding shielding layers and at least one signal transmission layer, two sides of each signal transmission layer are respectively provided with at least one grounding shielding layer, in addition, the signal transmission layer comprises at least one signal guide part, the grounding shielding layer comprises at least one grounding guide part and is provided with a first end face, in the inserting direction of the module card, the ground connection part is close to the opening relative to the signal connection part, the second end face is far away from the opening relative to the signal connection part, the first contact part is electrically connected with the signal connection part to form a signal transmission path, the second contact part is electrically connected with the ground connection part to form a ground shielding loop, the signal transmission path is positioned in an isolation area formed by sequentially contacting and conducting the first shielding plate, one ground shielding layer, the other ground shielding layer and the second shielding plate, namely, the ground shielding loop formed by the shielding plate and the ground shielding layer can completely shield the signal transmission path formed by the conductive terminal and the signal transmission layer, so that the ground shielding loop can completely and effectively shield the whole signal transmission path, the high-frequency performance of signal transmission is optimized, the signal integrity performance of the electric connector is finally improved, unnecessary radiation loss generated by the connector assembly is eliminated, and normal operation of other connector assemblies or other signal transmission elements on a circuit board can be ensured.

The insulating body is also provided with two end walls which are arranged between the two side walls at intervals, the outer side of each end wall is covered with a third shielding plate, the first shielding plate and the second shielding plate are integrally formed, so that signal transmission between a module card and the insulating body is further shielded, each end wall comprises a clamping block, each third shielding plate comprises a retaining piece and a shielding piece which is bent and extended from the opening to the slot, the retaining piece is bent towards the direction of the insulating body to be matched and clamped with the clamping block, so that the third shielding plate is fixed on the insulating body, a retaining hole is formed at the position of the retaining piece, the shielding piece is bent and extended to the slot to completely shield the retaining hole, and the shielding effect of the third shielding plate on the signal transmission path at the position of the retaining hole is weakened, therefore, the shielding sheet is designed to completely shield the holding hole, so that the shielding plate is stably covered outside the insulating body through the holding sheet, and the shielding effect of the grounding shielding loop on the whole signal transmission path is not weakened due to the structure of the holding hole formed on the shielding plate.

Each third shield plate still is equipped with the cladding a cover portion of insulator upper surface, just first shield plate with the second shield plate all is equipped with the cladding an insulator upper surface cladding portion, so the design can shield signal transmission path is in electromagnetic interference and crosstalk on the insulator upper end face eliminate the unnecessary radiation loss that the connector subassembly produced to improve the electric connector signal integrality performance beyond, can also guarantee the normal work of other connector subassemblies on the circuit board or other signal transmission component.

Each third shielding plate is provided with a grounding fixing pin electrically connected with the circuit board, on one hand, the electric connector is fixed on the circuit board, and on the other hand, the third shielding plates are directly electrically connected with the circuit board to play a better grounding shielding role.

In the inserting direction, the first shielding plate and the second shielding plate further comprise a third end surface far away from the opening, and the third end surface is directly electrically connected with a circuit board to form the grounding shielding loop, so that the shielding plate can also completely shield a signal transmission path generated when the conductive terminal is electrically connected with the circuit board, and the signal transmission path generated between the circuit board and the connector assembly is shielded to optimize the high-frequency performance of signal transmission, and further improve the signal integrity performance of the electric connector.

Each side wall is further provided with a guide block positioned on at least one side of each elastic arm, each guide block is provided with a guide inclined plane, and in the inserting direction, the guide inclined plane is positioned above the second contact part, so that when the module card is inserted into the butt joint groove, the module card firstly contacts the guide inclined plane positioned above to correct the position of the module card, and then the module card moves towards the inside of the slot to be contacted with the second contact part, and therefore the situation that the elasticity of the elastic arms is reduced due to multiple times of misplugging of the module card, so that the elastic arms cannot abut against the grounding guide part to cause that the grounding shielding loop cannot completely shield the signal transmission path, namely the grounding shielding loop cannot provide complete and effective shielding finally can be avoided.

The signal conducting parts are arranged in a row in the lengthwise direction of the module card, the two grounding contact parts are respectively arranged at the two outermost sides of the signal conducting parts in the row, the grounding contact part is electrically connected with the grounding terminal in the conductive terminal to form a grounding shielding loop so as to shield the signal transmission path on two sides of the module card in the longitudinal direction, that is, both sides of the signal line in the longitudinal direction are shielded by the ground shield circuit formed by the ground terminal and the ground contact portion, so that both sides of the signal transmission path in the longitudinal direction also do not generate electromagnetic interference or crosstalk to other connector assemblies or other signal transmission elements on the circuit board, therefore, the normal operation of other connector assemblies or other signal transmission elements on the circuit board can be ensured in addition to eliminating unnecessary radiation loss generated by the connector assemblies.

[ description of the drawings ]

FIG. 1 is an exploded view of the connector assembly and circuit board of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an assembled view of FIG. 1;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a cross-sectional view taken along A-A of FIG. 4;

fig. 7 is a cross-sectional view of the electrical connector of fig. 1 taken along a longitudinal direction;

FIG. 8 is a partially exploded view of the modular card of FIG. 1;

fig. 9 is a partial schematic view of a conductive layer within the modular card of fig. 1.

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the utility model, reference should be made to the drawings and detailed description that follow.

As shown in fig. 1 to 9, the connector assembly 100 of the present invention includes an electrical connector 1 and a module card 2 for mating with the electrical connector 1 along an insertion direction, wherein the connector assembly 100 is mounted on a circuit board 200.

For ease of understanding, an inserting direction, which is represented by a Z axis, a longitudinal direction, which is represented by an X axis, and a thickness direction, which is represented by a Y axis, are defined and projected into an XYZ coordinate system.

As shown in fig. 1, 6 and 7, the electrical connector 1 includes an insulative housing 10, a plurality of conductive terminals 11 received in the insulative housing 10, and a shielding plate 12 covering the insulative housing 10, the insulation body 10 is made of an insulation plastic material, the insulation body 10 includes a butt-joint groove 101 and two side walls 102 respectively disposed at two sides of the butt-joint groove 101 in the thickness direction, in the inserting direction, the abutting groove 101 is provided with an opening 101a upward, the module card 2 enters the abutting groove 101 from the opening 101a to be matched and inserted with the electric connector 1, in the thickness direction, two rows of the conductive terminals 11 are respectively disposed in the two sidewalls 102 to electrically connect with the module card 2, the shielding plate 12 is wrapped on a side of each sidewall 102 facing away from the docking slot 101.

As shown in fig. 1, fig. 2 and fig. 7, specifically, the insulation body 10 further includes two end walls 103 respectively disposed at two other sides of the docking slot 101, the two end walls 103 and the two side walls 102 are integrally formed by injection molding, the two end walls 103 and the two side walls 102 surround the docking slot 101, each side wall 102 is provided with a plurality of guiding blocks 1021 at two sides near the opening 101a, each guiding block 1021 has a guiding inclined surface 1021a, and each end wall 103 is provided with a clamping block 1031 at a side away from the docking slot 101.

As shown in fig. 7, in the present embodiment, each row of the conductive terminals 11 includes a plurality of signal terminals 110 and two ground terminals 111, in the longitudinal direction, the two ground terminals 111 are respectively located at two outermost sides of the row of the conductive terminals 11, each signal terminal 110 has a first contact portion 1101, the first contact portion 1101 is exposed to the mating slot 101, in other embodiments, a plurality of ground terminals 111 may be provided, and two of the plurality of ground terminals 111 are respectively located at two outermost sides of the row of the conductive terminals 11.

As shown in fig. 1 to 3, specifically, the shielding plate 12 includes a first shielding plate 12a, a second shielding plate 12b, and two third shielding plates 12c, the first shielding plate 12a and the second shielding plate 12b are respectively wrapped on a side of the two side walls 102 away from the docking slot 101 in the thickness direction, the two third shielding plates 12c are respectively wrapped on a side of the two end walls 103 away from the docking slot 101 in the longitudinal direction, the first shielding plate 12a and the second shielding plate 12b have a first end surface 120 and a third end surface 122 that are oppositely disposed in the insertion direction, the first end surface 120 is disposed close to the opening 101a, the third end surface 122 is disposed far away from the opening 101a, the first shielding plate 12a and the second shielding plate 12b respectively extend from the first end surface 120 toward the opening 101a to form a wrapping portion 123, the covering part 123 has a continuous length in the longitudinal direction, a plurality of elastic arms 121 arranged at intervals are formed by bending and extending from one end of each covering part 123 close to the opening 101a towards the butt-joint groove 101, each elastic arm 121 is provided with a second contact part 1210, the second contact part 1210 is exposed out of the butt-joint groove 101, in the longitudinal direction, two sides of each elastic arm 121 are respectively provided with one guide block 1021, and in the inserting direction, the guide inclined plane 1021a is positioned above the second contact part 1210, so that in the inserting process of the module card 2 and the butt-joint groove 101, the module card 2 is guided to be in a correct inserting position by the guide inclined plane 1021a and then is inserted into the butt-joint groove 101 at a correct inserting position, so as to avoid the elasticity reduction of the elastic arms 121 caused by multiple errors of the module card 2, the third end surface 122 is directly electrically connected to the circuit board 200 by surface soldering, so that the shielding plate 12 can also completely shield a signal transmission path generated when the conductive terminal 11 is electrically connected to the circuit board 200.

As shown in fig. 1, 2 and 7, each of the third shielding plates 12c has a holding piece 125 deflected toward the insulating body 10, a grounding holding pin 128, a covering portion 126 and a shielding piece 127 connected to one end of the covering portion 126, the holding piece 125 cooperates with the latch 1031 to fix the shielding plate 12 to the insulating body 10, and the holding piece 125 is formed by tearing or punching, so that the third shielding piece 127 has a holding hole 124 formed at a position corresponding to the holding piece 125, the grounding holding pin 128 is formed by extending from one end of the third shielding plate 12c away from the opening 101a along the inserting direction, the grounding holding pin 128 cooperates with the circuit board 200 to fix the electrical connector 1, and the grounding holding pin 128 is electrically connected to the circuit board 200, the covering portion 126 is formed by extending from one end of the third shielding plate 127 close to the opening 101a, and the shielding plate 127 is formed by extending from one end of the covering portion 126 close to the opening 101a to the mating slot 101, because the shielding effect of the third shielding plate 12c at the holding hole 124 is weakened, the shielding plate 127 capable of completely shielding the holding hole 124 is designed, so that the signal shielding effect is enhanced.

As shown in fig. 6, 8 and 9, the module card 2 includes an insulating substrate 20 and a plurality of conductive layers 21, the plurality of conductive layers 21 are isolated from each other by one insulating substrate 20, in this embodiment, the plurality of conductive layers 21 include two signal transmission layers 211 and four ground shield layers 210 electrically connected to each other, in the thickness direction, the four ground shield layers 210 are divided into two first ground shield layers 210a and two second ground shield layers 210b, the two second ground shield layers 210b are located between the two first ground shield layers 210a, and every two adjacent ground shield layers 210 are spaced from each other, that is, when viewed in the thickness direction, the four ground shield layers 210 are arranged in an array: first ground shield layer 210 a-second ground shield layer 210 b-first ground shield layer 210a, two signal transmission layers 211 are respectively arranged between one first ground shield layer 210a and one second ground shield layer 210b which are adjacent, that is, when viewed in the thickness direction, the arrangement of four ground shield layers 210 and two signal transmission layers 211 is: first ground shield layer 210 a-signal transmission layer 211-second ground shield layer 210 b-signal transmission layer 211-first ground shield layer 210 a; in other embodiments, the number of the ground shielding layers 210 may be only three, and the arrangement of the three ground shielding layers 210 and the two signal transmission layers 211 in the thickness direction is: the first ground shield layer 210a, the signal transmission layer 211, the second ground shield layer 210b, the signal transmission layer 211, and the first ground shield layer 210a have the same characteristics as the present embodiment except for the different number of the ground shield layers 210; in another embodiment, the number of the ground shielding layers 210 may be only two, and the number of the signal transmission layers 211 is only one, and the arrangement of the two ground shielding layers 210 and the one signal transmission layer 211 in the thickness direction is: the first ground shielding layer 210a, the signal transmission layer 211 and the second ground shielding layer 210b have the same features as the present embodiment except that the number of the ground shielding layers 210 and the number of the signal transmission layers 211 are different from the present embodiment.

As shown in fig. 6, 8 and 9, in the present embodiment, in the inserting direction, the first ground shield 210a and the second ground shield 210b both have a second end surface 2101, and in the inserting direction, the second end surface 2101 of the first ground shield 210a is located above the second end surface 2101 of the second ground shield 210b, and when the module card 2 is inserted into the docking slot 101, the second end surface 2101 is located below the first end surface 120, in other embodiments, in the inserting direction, the second end surface 2101 of the first ground shield 210a may be further disposed to be flush with the second end surface 2101 of the second ground shield 210b, and other features are the same as those in the present embodiment.

As shown in fig. 1, 6 and 8, the first ground shield layer 210a includes a ground connection portion 2102, the ground connection portion 2102 has a continuous length in the longitudinal direction, the second ground shield layer 210b includes two ground contact portions 2103, the signal transmission layer 211 includes a plurality of signal connection portions 2110 arranged in a row in the longitudinal direction, the two ground contact portions 2103 are arranged in the same row as the row of conductive terminals 11 and are respectively located at two outermost sides of the row of conductive terminals 11, that is, the plurality of signal connection portions 2110 are arranged between the two ground contact portions 2103, when the module card 2 is inserted into the mating slot 101, the ground connection portion 2102 is close to the opening 101a relative to the signal connection portions 2110, the ground connection portion 2102 is electrically connected to the second contact portion 1210 to form a ground shield loop at two sides in the longitudinal direction, the ground contact portion 2103 is electrically connected to the ground terminal 111 to form another ground shielding loop on the other two sides in the longitudinal direction, the signal guiding portion 2110 is electrically connected to the signal terminal 110 to form a signal transmission path, and in the inserting direction, the first end surface 120 is located above the second end surface 2101, so that the ground shielding loop can completely shield the signal transmission path, that is, the signal transmission path is located in an isolation area formed by sequentially contacting and conducting the first shielding plate 12a, the first ground shielding layer 210a, the second ground shielding layer 210b, the other first ground shielding layer 210a, and the second shielding plate 12 b; in other embodiments, the ground contact 2103 may be provided in plural, two ground contacts 2103 of the plural ground contacts 2103 are located at two outermost sides of the same row, and other features are the same as those of the present embodiment.

In summary, the connector of the present invention has the following advantages:

1. the electrical connector 1 comprises an insulation body 10 provided with a docking slot 101, a shielding plate 12 covering the insulation body 10, wherein the shielding plate 12 comprises a first shielding plate 12a and a second shielding plate 12b, the first shielding plate 12a and the second shielding plate 12b both have a first end face 120 near the opening 101a of the docking slot 101, at least one elastic arm 121 is bent and extended from the first end face 120 toward the docking slot 101, the elastic arm 121 has a second contact portion 1210, a module card 2 inserted into the docking slot 101, the module card 2 comprises a plurality of conductive layers 21, the plurality of conductive layers 21 comprise at least two grounding shielding layers 210 and at least one signal transmission layer 211, each of the two sides of the signal transmission layer 211 are respectively provided with at least one grounding shielding layer 210, in addition, the signal transmission layer 211 comprises at least one signal guiding and connecting portion 2110, the ground shield 210 includes at least one ground connection 2102 and has a second end surface 2101, in the insertion direction of the module card 2, the ground connection 2102 is close to the opening 101a relative to the signal connection 2110, and the second end surface 2101 is far from the opening 101a relative to the signal connection 2110, the first contact portion 1101 is electrically connected with the signal connection 2110 to form a signal transmission path, the second contact portion 1210 is electrically connected with the ground connection 2102 to form a ground shield loop, the signal transmission path is located in an isolation region formed by sequentially contacting and conducting the first shield 12a, one of the ground shields 210, the other of the ground shields 210, and the second shield 12b, that is, the ground shield loop formed by the shields 12 and the ground shields 210 can completely shield the signal transmission path formed by the conductive terminal 11 and the signal transmission layer 211, the ground shield loop can completely and effectively shield the whole signal transmission path to optimize the high-frequency performance of signal transmission, and finally improve the signal integrity performance of the electrical connector 1, and can ensure the normal operation of other connector assemblies 100 or other signal transmission elements on the circuit board 200 besides eliminating unnecessary radiation loss generated by the connector assembly 100.

2. The insulating body 10 further has two end walls 103 disposed between the two side walls 102 at an interval, a third shielding plate 12c covers an outer side of each end wall 103, the third shielding plate 12c is integrally formed with the first shielding plate 12a and the second shielding plate 12b, so as to further shield signal transmission between the module card 2 and the insulating body 10, each end wall 103 includes a latch 1031, each third shielding plate 12c includes a retaining piece 125 and a shielding piece 127 bent and extending from the opening 101a into the slot, the retaining piece 125 is deflected toward the insulating body 10 to be engaged with the latch 1031, so as to fix the third shielding plate 12c on the insulating body 10, and a retaining hole 124 is formed at the position of the retaining piece 125 by the third shielding plate 12c, the shielding plate 127 is bent and extended inward the slot to completely shield the holding hole 124, and the shielding effect of the third shielding plate 12c on the signal transmission path at the position of the holding hole 124 is weakened, so that a shielding plate 127 is designed to completely shield the holding hole 124, so that the shielding plate 12 is stably covered outside the insulating body 10 through the holding plate 125, and the shielding effect of the ground shielding loop on the whole signal transmission path is not weakened due to the structure of the holding hole 124 formed on the shielding plate 12.

3. Each of the third shielding plates 12c is further provided with a covering portion 126 covering the upper surface of the insulating body 10, and the first shielding plate 12a and the second shielding plate 12b are both provided with a covering portion 123 covering the upper surface of the insulating body 10, so that the electromagnetic interference and crosstalk of the signal transmission path on the upper end surface of the insulating body 10 can be shielded, unnecessary radiation loss generated by the connector assembly 100 is eliminated, and thus, the signal integrity performance of the electrical connector 1 is improved, and the normal operation of other connector assemblies 100 or other signal transmission elements on the circuit board 200 can be ensured.

4. Each third shielding plate 12c is provided with a grounding pin 128 electrically connected to the circuit board 200, on one hand, for fixing the electrical connector 1 on the circuit board 200, and on the other hand, the third shielding plate 12c is directly electrically connected to the circuit board 200, which can achieve better grounding shielding effect.

5. In the inserting direction, the first shielding plate 12a and the second shielding plate 12b further include a third end surface 122 far away from the opening 101a, and the third end surface 122 is directly electrically connected to a circuit board 200 to form the ground shielding loop, so that the shielding plate 12 can also completely shield a signal transmission path generated when the conductive terminal 11 is electrically connected to the circuit board 200, so as to shield the signal transmission path generated between the circuit board 200 and the connector assembly 100, so as to optimize the high-frequency performance of signal transmission, thereby improving the signal integrity performance of the electrical connector 1.

6. Each of the sidewalls 102 is further provided with a guiding block 1021 at least one side of each of the elastic arms 121, each of the guiding blocks 1021 has a guiding inclined surface 1021a, in the insertion direction, the guide slope 1021a is located above the second contact portion 1210, so that when the module card 2 is inserted into the mating slot 101, the module card 2 first contacts the guide slope 1021a located above to correct the position of the module card 2, then, the module card 2 is moved toward the slot to contact with the second contact portion 1210, so that the elasticity of the elastic arm 121 is prevented from being reduced due to multiple mis-insertions of the module card 2, and thus cannot abut the ground lead 2102, resulting in the ground shield loop not completely shielding the signal transmission path, i.e., eventually resulting in the ground shield loop not providing complete and effective shielding.

7. The signal conductors 2110 are arranged in a row in the longitudinal direction of the module card 2, two ground contacts 2103 are respectively arranged at two outermost sides of the row of signal conductors 2110, the ground contacts 2103 are electrically connected with the ground terminals 111 of the conductive terminals 11 to form a ground shielding loop, so as to shield the signal transmission path at two sides in the longitudinal direction of the module card 2, that is, two sides of the signal transmission layer 211 in the longitudinal direction are shielded by the ground shielding loop formed by the ground terminals 111 and the ground contacts 2103, so that two sides of the signal transmission path in the longitudinal direction do not generate electromagnetic interference or crosstalk with other connector assemblies 100 or other signal transmission elements on the circuit board 200, and unnecessary radiation loss generated by the connector assemblies 100 is eliminated, it is also possible to ensure proper operation of other connector assemblies 100 or other signal transmission elements on the circuit board 200.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and drawings are included in the scope of the present invention.

Claims

1. A connector assembly, comprising:

2. The connector assembly of claim 1, wherein: the insulating body is also provided with two end walls which are arranged between the side walls and at intervals, two end walls and two side walls are integrally formed, two side walls and two end walls are surrounded to form the butt joint groove, each third shielding plate is covered on the outer side of each end wall, and the third shielding plates are integrally formed with the first shielding plates and the second shielding plates.

3. The connector assembly of claim 2, wherein: each the end wall includes a fixture block, each the third shield plate all includes a holding hole and certainly the opening to a shielding piece that the slot is interior to buckle and extend, the holding hole includes an end and certainly a holding piece that the end extends, the holding piece to insulator's direction deflection with fixture block cooperation joint, wherein, the shielding piece is to the slot is interior to buckle and extend in order to shield completely the holding hole.

4. The connector assembly of claim 2, wherein: each third shielding plate is also provided with a covering part, the covering part is formed by bending and extending one end of each third shielding plate close to the opening, and the covering part covers the upper end face of the end wall.

5. The connector assembly of claim 2, wherein: each third shielding plate is also provided with a grounding fixing pin, the grounding fixing pin is formed by extending one end of the third shielding plate far away from the opening, and the grounding fixing pin is used for being electrically connected with a circuit board.

6. The connector assembly of claim 1, wherein: in the inserting direction, the first shielding plate and the second shielding plate further comprise a third end surface far away from the opening; the third end surface is directly electrically connected with a circuit board to form the grounding shielding loop so as to shield the signal transmission path formed by electrically connecting the conductive terminal and the circuit board.

7. The connector assembly of claim 1, wherein: each side wall is further provided with a guide block positioned on at least one side of each elastic arm, each guide block is provided with a guide inclined surface, and the guide inclined surfaces are positioned above the second contact parts in the inserting direction.

8. The connector assembly of claim 1, wherein: the shielding plate is further provided with a coating part, one end of the coating part is connected with the first end face, the other end of the coating part is connected with the elastic arm, and the coating part coats the upper end face of the side wall.

9. The connector assembly of claim 1, wherein: in the thickness direction of the module card, two sides in the insulating substrate are respectively and fixedly provided with the grounding shielding layer, part of the grounding shielding layer is exposed on the outer surface of the insulating substrate to be electrically connected with the elastic arm to form the grounding shielding loop, and the thickness direction is perpendicular to the inserting direction.

10. The connector assembly of claim 1, wherein: at least two of the ground shield layers include at least a first ground shield layer and at least a second ground shield layer, the first grounding shielding layer is closer to the shielding plate than the second grounding shielding layer, the first grounding shielding layer is provided with at least one grounding conductive part for electrically connecting with the elastic arm, the second grounding shielding layer is provided with at least two grounding contact parts, in the longitudinal direction of the module card, a plurality of signal guiding parts are arranged in a row in the longitudinal direction of the module card, two grounding contact parts are respectively arranged at two outermost sides of the signal guiding parts in the row, the conductive terminal also comprises at least two grounding terminals, the grounding terminals are electrically connected with the grounding contact part, the signal transmission path is shielded on both sides in the longitudinal direction, which is perpendicular to the insertion direction.