CN112952427B - Electric connector and connector assembly - Google Patents
Electric connector and connector assembly Download PDFInfo
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- CN112952427B CN112952427B CN202110099798.XA CN202110099798A CN112952427B CN 112952427 B CN112952427 B CN 112952427B CN 202110099798 A CN202110099798 A CN 202110099798A CN 112952427 B CN112952427 B CN 112952427B
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- terminal group
- slot
- terminal
- grounding
- conductive
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
- H01R12/735—Printed circuits including an angle between each other
- H01R12/737—Printed circuits being substantially perpendicular to each other
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6461—Means for preventing cross-talk
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- Coupling Device And Connection With Printed Circuit (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses an electric connector and a connector assembly comprising the electric connector and a circuit board, wherein the electric connector comprises a body and conductive terminals, the body is provided with a slot which extends lengthwise, the conductive terminals are provided with contact parts which enter the slot and a guide connection part which is downward beyond the bottom surface of the body, each side of the slot is provided with a first terminal group and a second terminal group which are alternately arranged along the lengthwise direction, the first terminal group and the second terminal group are respectively composed of two adjacent conductive terminals, and the guide connection part of the first terminal group is far away from the slot in the transverse direction relative to the guide connection part of the second terminal group; the conducting parts of the first terminal group and the second terminal group on two sides of the slot are arranged in four rows in the transverse direction, and the conducting terminals corresponding to each row of conducting parts comprise signal terminals and grounding terminals; the circuit board is provided with an adjusting hole and four rows of contacts corresponding to the guide connection part, each row of contacts comprises a signal contact and a grounding contact, the adjusting hole is electrically connected with the grounding contact through the circuit board, and the adjusting hole is positioned between two adjacent rows of signal contacts.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to an electrical connector and a connector assembly, and more particularly, to an electrical connector and a connector assembly with improved high frequency performance.
[ background of the invention ]
In the electrical connector industry, there are two main trends, one is to reduce the overall size of the electrical connector, and the other is to arrange more conductive terminals in a unit area, both of which tend to reduce the spacing between the conductive terminals. Taking a DDR connector as an example, according to the specification established by the JEDEC association, the DDR4 connector has a smaller overall size and more conductive terminals, so that the conductive terminals of the DDR4 connector have smaller pitches, and on a circuit board on which the connector is mounted, contacts correspondingly connecting the conductive terminals become denser, which leads to crosstalk between different signal terminals and corresponding different signal contacts, and thus crosstalk is more likely to occur during signal transmission.
Therefore, there is a need for an improved electrical connector and connector assembly that overcomes the above-mentioned problems.
[ summary of the invention ]
In view of the problems encountered in the prior art, the present invention provides an electrical connector and a connector assembly, which improve crosstalk in high-frequency signal transmission by arranging conductive terminals different from the association standard and providing additional grounding adjustment holes between signal contacts of a circuit board.
In order to achieve the purpose, the invention adopts the following technical means:
a connector assembly comprising a circuit board and an electrical connector mounted to the circuit board, the electrical connector comprising a body and a plurality of conductive terminals mounted to the body, the body having a slot recessed downwardly from a top surface of the body and extending in a lengthwise direction, the slot having a plurality of conductive terminals distributed on opposite sides of a transverse direction, the transverse direction being perpendicular to the lengthwise direction, each conductive terminal having a contact portion entering the slot, a conductive portion projecting downwardly beyond a bottom surface of the body, and a connecting portion connecting the contact portion and the conductive portion, the plurality of conductive terminals on each side of the slot each comprising a plurality of first terminal groups and a plurality of second terminal groups arranged alternately in the lengthwise direction, the first terminal groups and the second terminal groups consisting of two adjacent conductive terminals, both of the first terminal groups being spaced from the slot in the transverse direction relative to both of the conductive portions of the second terminal groups; the first terminal group and the guide connection parts of the second terminal group on two sides of the slot are arranged in four rows in the transverse direction, the guide connection parts of the first terminal group on the same side of the slot are positioned in one row, the guide connection parts of the second terminal group are positioned in the other row, and a plurality of conductive terminals corresponding to each row of the guide connection parts comprise a plurality of signal terminals and a plurality of grounding terminals; the circuit board is provided with at least one adjusting hole and four rows of contacts corresponding to the four rows of the conducting parts, each row of the contacts comprises a plurality of signal contacts conducting the conducting parts of the signal terminals and a plurality of grounding contacts conducting the conducting parts of the grounding terminals, the adjusting hole is electrically connected with the grounding contacts through the circuit board, and the adjusting hole is positioned between two adjacent rows of the signal contacts.
Furthermore, the conductive part of the second terminal group on one side of the slot and the conductive part of the second terminal group on the other side are arranged in a staggered manner along the longitudinal direction, and the adjusting hole is arranged between two rows of signal contacts corresponding to the conductive parts of the second terminal group.
Furthermore, the adjusting hole is arranged between the two rows of signal contacts corresponding to the first terminal group and the second terminal group on the same side of the slot.
Further, the adjusting hole is arranged between two signal contacts which are positioned in two adjacent rows and are only separated by zero or one grounding contact in the longitudinal direction.
Further, the adjusting hole is located at the midpoint of a connecting line of the two signal contacts.
Furthermore, each conductive terminal is provided with only one connecting portion at the bottom end of the connecting portion, the connecting portion is located at one side of the longitudinal direction corresponding to the guide portion and used for connecting a material belt, and in each first terminal group and the second terminal group, the connecting portions of the two conductive terminals are located between the two guide portions in the longitudinal direction.
Furthermore, the two second terminal groups located in two adjacent rows are both composed of one signal terminal and one ground terminal, and the adjusting hole is arranged between the two signal contacts corresponding to the two second terminal groups in two adjacent rows.
Furthermore, the contact is a plated through hole formed on the circuit board and accommodates the corresponding conductive connection part.
Further, the bending direction of the conductive portion of the first terminal group is opposite to the bending direction of the conductive portion of the second terminal group.
Furthermore, the connecting portion includes an extending section formed by bending and extending the connecting portion in the transverse direction and a connecting pin formed by extending the extending section downward, the connecting pin is connected with the corresponding contact in a guiding manner, the connecting portion of the first terminal group and the connecting portion of the second terminal group on the same side of the slot are arranged in a row in the longitudinal direction, and the extending length of the extending section of the second terminal group in the transverse direction is smaller than the extending length of the extending section of the first terminal group in the transverse direction.
A connector assembly comprising a circuit board and an electrical connector mounted to the circuit board, the electrical connector comprising a body and a plurality of conductive terminals mounted to the body, a slot recessed downwardly from a top surface of the body and extending in a lengthwise direction, the slot having a plurality of conductive terminals distributed on opposite sides of a transverse direction, the transverse direction being perpendicular to the lengthwise direction, the conductive terminals comprising a plurality of signal terminals and a plurality of ground terminals, each conductive terminal having a contact portion entering the slot, a conductive portion projecting downwardly beyond a bottom surface of the body, and a connecting portion connecting the contact portion and the conductive portion, the plurality of conductive terminals on each side of the slot each comprising a plurality of first terminal groups and a plurality of second terminal groups, each of the first terminal groups and the second terminal groups being comprised of two adjacent conductive terminals, two of the first terminal groups being spaced from the slot in the transverse direction relative to two of the conductive portions of the second terminal groups, the first terminal groups being arranged alternately with the second terminal groups on the same side of the slot; the first terminal group and the guide connection part of the second terminal group on two sides of the slot are arranged in four rows in the transverse direction, the guide connection part of the first terminal group on the same side of the slot is positioned in one row, the guide connection part of the second terminal group is positioned in the other row, and the conductive terminals corresponding to the guide connection parts in each row comprise a plurality of signal terminals and a plurality of grounding terminals; the circuit board is provided with a plurality of adjusting holes and four rows of contacts corresponding to the four rows of the conducting parts, each row of the contacts comprises a plurality of signal contacts conducting with the conducting parts of the signal terminals and a plurality of grounding contacts conducting with the conducting parts of the grounding terminals, each adjusting hole is electrically connected with the grounding contacts through the circuit board, and each adjusting hole is positioned between two adjacent rows of the signal contacts; the electric connector also comprises a grounding piece, the grounding piece is arranged between the conductive terminals at two sides of the slot in the transverse direction, and the grounding piece is in contact with the grounding terminals corresponding to the two rows of the guiding parts in the middle to form electric connection.
Furthermore, the contact points are plated through holes formed in the circuit board and accommodate the corresponding connecting parts.
Furthermore, the grounding member has a plurality of grounding pins, and each grounding pin and the connecting portion of one grounding terminal are received in the same contact and are in contact with each other.
Further, the ground pin and the ground contact of the conductive connection portion of the ground terminal are accommodated at the same time, and the aperture thereof is larger than the apertures of the other contacts.
Further, the adjusting hole is arranged between two signal contacts which are positioned in two adjacent rows and are separated by zero or one grounding contact in the longitudinal direction.
Furthermore, each of the adjusting holes is located between two rows of the signal contacts corresponding to the conductive connection portion of the second terminal group, and the adjusting hole is located on a connection line of two adjacent signal contacts in two adjacent rows.
A connector assembly comprising a circuit board and an electrical connector mounted to the circuit board, the electrical connector comprising a body and a plurality of conductive terminals mounted to the body, the body having a slot recessed downwardly from a top surface of the body and extending in a lengthwise direction, the slot having a plurality of the conductive terminals distributed on opposite sides of a transverse direction, the transverse direction being perpendicular to the lengthwise direction, each of the conductive terminals having a contact portion entering the slot, a lead portion projecting downwardly beyond a bottom surface of the body, and a connection portion connecting the contact portion and the lead portion, the plurality of conductive terminals comprising a plurality of signal terminals and a plurality of ground terminals, the plurality of conductive terminals on each side of the slot comprising a plurality of first terminal groups and a plurality of second terminal groups arranged in the lengthwise direction, the first terminal groups and the second terminal groups each consisting of two adjacent conductive terminals, two of the lead portions in the first terminal groups being remote from the slot in the transverse direction relative to two of the lead portions in the second terminal groups; the first terminal group and the conducting parts of the second terminal group on two sides of the slot are arranged in four rows in the transverse direction, the conducting parts of the first terminal group on the same side of the slot are positioned in one row, the conducting parts of the second terminal group are positioned in the other row, and the two rows of conducting parts of the second terminal group on two sides of the slot are arranged in a staggered manner in the longitudinal direction, wherein the conductive terminals corresponding to each row of the conducting parts comprise a plurality of signal terminals and a plurality of grounding terminals; the circuit board is provided with at least one adjusting hole and four rows of contact points corresponding to the four rows of the conducting parts, each row of the contact points comprises a plurality of signal contact points conducting the conducting parts of the signal terminals and a plurality of grounding contact points conducting the conducting parts of the grounding terminals, the adjusting hole is electrically connected with the grounding contact points through the circuit board, the signal contact points in two adjacent rows are staggered in the longitudinal direction, and each adjusting hole is positioned between two staggered signal contact points in two adjacent rows.
Further, the adjusting hole is arranged between two signal contacts which are positioned in two adjacent rows and are separated by zero or one grounding contact in the longitudinal direction.
Furthermore, each adjusting hole is located between two rows of the signal contacts corresponding to the conductive portion of the second terminal set.
Furthermore, the two second terminal groups located in two adjacent rows are both composed of one signal terminal and one ground terminal, and the adjusting hole is arranged between the two signal contacts corresponding to the two second terminal groups in two adjacent rows.
Further, the guide connection portion is bent in the transverse direction with respect to the connection portion, and a bending direction of the guide connection portion of the first terminal group on the same side of the slot is opposite to a bending direction of the guide connection portion of the second terminal group.
An electrical connector for mounting to a circuit board having at least one alignment hole and a plurality of contacts arranged in four rows in a transverse direction, each row of the contacts including a plurality of signal contacts and a plurality of ground contacts, the alignment hole and the ground contacts being electrically connected through the circuit board, comprising: a body having a slot recessed downwardly from a top surface of the body and extending in a lengthwise direction, the lengthwise direction being perpendicular to the transverse direction; the conductive terminals are arranged on the body, the conductive terminals are uniformly distributed on two transverse sides of the slot, each conductive terminal is provided with a contact part entering the slot, a guide connection part downwards exceeding the bottom surface of the body and a connection part connecting the contact part and the guide connection part, and each guide connection part is in guide connection with one contact point; the conductive terminals on each side of the slot respectively comprise a plurality of first terminal groups and a plurality of second terminal groups which are alternately arranged along the longitudinal direction, the first terminal groups and the second terminal groups respectively comprise two adjacent conductive terminals, and two conductive parts in the first terminal groups are far away from the slot in the transverse direction relative to two conductive parts in the second terminal groups; the slot both sides first terminal group with second terminal group lead the portion of connecting and be in be four rows of settings on the transverse direction, the slot is with one side first terminal group lead the portion of connecting and be located one of them row, second terminal group lead the portion of connecting and be located another row, wherein, correspond every row lead a plurality of portion conductive terminal includes a plurality of signal terminal and a plurality of ground terminal, the adjustment hole be located two adjacent two rows with signal terminal lead connect between the contact.
Furthermore, each conductive terminal is provided with only one connecting portion at the bottom end of the connecting portion, the connecting portion is used for connecting a material belt, the connecting portions and the conducting portions are connected to the connecting portion side by side in the longitudinal direction, and in each of the first terminal group and the second terminal group, the two connecting portions of the two conductive terminals are located between the two conducting portions in the longitudinal direction.
Furthermore, the electrical connector further comprises a grounding piece, the grounding piece is arranged between the conductive terminals on the two sides of the slot in the transverse direction, and the grounding piece is in contact with the grounding terminals corresponding to the two rows of the conducting parts in the middle to form electrical connection.
Furthermore, the contacts are plated through holes formed on the circuit board and accommodate the corresponding conductive connection portions, the grounding member has a plurality of grounding pins, and each grounding pin and the conductive connection portion of a corresponding grounding terminal are accommodated in the same contact and are mutually connected in a conductive manner.
Further, the guide connection portion is bent in the transverse direction with respect to the connection portion, and a bending direction of the guide connection portion of the first terminal group on the same side of the slot is opposite to a bending direction of the guide connection portion of the second terminal group.
Furthermore, each of the guiding portions includes an extending section formed by bending and extending the connecting portion in the transverse direction and a connecting pin formed by extending the extending section downwards, the connecting pin is connected with the corresponding contact in a guiding manner, the connecting portions of the first terminal group and the connecting portions of the second terminal group on the same side of the slot are arranged in a row in the longitudinal direction, and in the transverse direction, the distance between the connecting pins and the connecting portions of the second terminal group is smaller than the distance between the connecting pins and the connecting portions of the first terminal group.
Compared with the prior art, the invention has the following beneficial effects:
the conductive terminals on each side of the slot respectively comprise a plurality of first terminal groups and a plurality of second terminal groups which are alternately arranged along the lengthwise direction, the first terminal groups and the second terminal groups respectively comprise two adjacent conductive terminals, and two conductive connection parts in the first terminal groups are far away from the slot in the transverse direction relative to two conductive connection parts in the second terminal groups, so that the two adjacent conductive connection parts on the same side of the slot have a larger space which can be pulled apart, the density of the conductive connection parts of the conductive terminals is reduced, and the density of the joints on the circuit board is also reduced; the first terminal group and the conducting parts of the second terminal group on two sides of the slot are arranged in four rows in the transverse direction, the circuit board is provided with at least one adjusting hole and four rows of contacts corresponding to the four rows of conducting parts, each row of contacts comprises a plurality of signal contacts conducting the conducting parts of the signal terminals and a plurality of grounding contacts conducting the conducting parts of the grounding terminals, the adjusting hole is electrically connected with the grounding contacts through the circuit board, the adjusting hole is positioned between two signal contacts in two adjacent rows, the adjusting hole is grounded, crosstalk interference between the two signal contacts in two adjacent rows on two sides of the adjusting hole and the conducting parts of the signal terminals corresponding to the two signal contacts is further reduced, and signal integrity is improved.
[ description of the drawings ]
FIG. 1 is a perspective view of a first embodiment of an electrical connector and connector assembly having an electrical connector and a circuit board of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 taken in the transverse direction;
fig. 3 is a schematic diagram of the first terminal set and the second terminal set alternately arranged in the longitudinal direction in fig. 1;
FIG. 4 is a bottom view of FIG. 3;
fig. 5 is a partial perspective view of the conductive terminal and the circuit board in fig. 1, wherein the view angle is located above the circuit board;
fig. 6 is a partial perspective view of the conductive terminal and the circuit board in fig. 1, wherein the view angle is located below the circuit board;
FIG. 7 is a top view of a portion of the circuit board of FIG. 1;
FIG. 8 is an exploded perspective view of a second embodiment of the electrical connector and connector assembly having an electrical connector and a circuit board of the present invention;
FIG. 9 is a cross-sectional view in the transverse direction of the assembled FIG. 8;
fig. 10 is a schematic view of the conductive terminal, the grounding member and the circuit board in fig. 8, wherein the view angle is located above the circuit board;
fig. 11 is a partial perspective view of the conductive terminal and the circuit board in fig. 8, wherein the view angle is located below the circuit board;
FIG. 12 is a top view of a portion of the circuit board of FIG. 8;
FIG. 13 is a cross-talk strength curve of the first embodiment, the second embodiment and the prior art.
Adjusting hole 32 grounding hole 33 material belt S
[ detailed description ] embodiments
For a better understanding of the objects, structures, features, and functions of the invention, reference should be made to the drawings and detailed description of the invention.
As shown in fig. 1, the connector assembly 1 of the first embodiment of the present invention includes an electrical connector 2, a circuit board 3 and a docking element (not shown), wherein the electrical connector 2 is mounted on the circuit board 3, the present invention only uses a DDR connector as one embodiment of the electrical connector 2 to illustrate the gist of the present invention, and does not represent that the present invention is limited to the DDR connector, and in fact, the present invention can also be applied to a PCI-e connector, a Gen Z connector, etc., and the docking element is an electronic card.
As shown in fig. 1 and 2, the electrical connector 2 includes a body 21 and a plurality of conductive terminals 22 mounted on the body 21. The body 21 is made of an insulating material, and has a slot 211 recessed downward from a top surface thereof and extending along a longitudinal direction X, the slot 211 is used for the docking element (not shown) to be inserted downward, and the longitudinal direction X is perpendicular to the up-down direction Z. Two ends of the electrical connector 2 in the longitudinal direction X of the slot 211 are provided with two ear buckles 23 for fixing the mating component.
As shown in fig. 2 and 3, the conductive terminals 22 are arranged on both sides of the insertion slot 211 in a transverse direction Y, which is perpendicular to the longitudinal direction X and the up-down direction Z. The conductive terminals 22 are distributed on each side of the slot 211, the conductive terminals 22 are arranged along the longitudinal direction X, and the conductive terminals 22 include a plurality of signal terminals 22A and a plurality of ground terminals 22B.
As shown in fig. 2 to 4, each of the conductive terminals 22 has a contact portion 221 entering the insertion slot 211, a conductive portion 222 extending downward beyond the bottom surface of the body 21, and a connecting portion 223 connecting the contact portion 221 and the conductive portion 222. The contact portion 221 is configured to contact the docking element. The connecting portion 223 has two fastening points 2231, and the conductive terminal 22 is mounted on the body 21 by the mutual interference between the fastening points 2231 and the body 21. The connecting portion 222 is bent in the transverse direction Y relative to the connecting portion 223, and includes an extending section 2221 formed by bending and extending in the transverse direction Y relative to the connecting portion 223, and a pin 2222 formed by extending downward from the extending section 2221, in this embodiment, the pin 2222 is mounted on the circuit board 3 by welding, and is connected to the circuit board 3 in a conductive manner. Each of the conductive terminals 22 has only one connecting portion 224 for connecting a strip S, and the connecting portion 224 is located at the bottom end of the connecting portion 223 and connected to the connecting portion 223 in parallel with the guiding portion 222 along the longitudinal direction X. In other embodiments, the conductive portion 222 may be surface-soldered to the circuit board 3.
As shown in fig. 2 to 4, each of the plurality of conductive terminals 22 on each side of the insertion slot 211 includes a plurality of first terminal groups 22C and a plurality of second terminal groups 22D alternately arranged along the longitudinal direction X, each of the first terminal groups 22C and the second terminal groups 22D is composed of two adjacent conductive terminals 22, the connection portions 223 of the first terminal groups 22C and the connection portions 223 of the second terminal groups 22D on the same side of the insertion slot 211 are arranged in a row in the longitudinal direction X, two of the connection portions 222 of the first terminal groups 22C are bent outward relative to two of the connection portions 222 of the second terminal groups 22D in the transverse direction Y away from the insertion slot 211, and in this embodiment, the connection portions 222 of the first terminal groups 22C are bent inward relative to the connection portions 223 thereof in a direction away from the insertion slot 211, that is, that the connection portions 222 of the second terminal groups 22D are bent inward relative to the connection portions 223 thereof in a direction close to the insertion slot 211, that is, the direction of the connection portions 222 of the first terminal groups 22C of the insertion slot 211 is opposite to the direction of the second terminal groups 22D. In other embodiments, only one of the first terminal set 22C and one of the second terminal set 22D may be distributed on each side of the slot 211.
As shown in fig. 3 and 4, in each of the first terminal set 22C and the second terminal set 22D, the two connecting portions 224 of the two conductive terminals 22 are located between the two guiding portions 222 in the longitudinal direction X, and the two pins 2222 in the same terminal set are offset outward in the longitudinal direction X relative to the two corresponding contact portions 221, that is, in the longitudinal direction X, the distance between the two pins 2222 is greater than the distance between the two contact portions 221, so that the distance between two adjacent pins 2222 has an effect of increasing compared with the prior art. The length of the extension section 2221 of the second terminal set 22D extending in the transverse direction Y is less than the length of the extension section 2221 of the first terminal set 22C extending in the transverse direction Y, or in the transverse direction Y, the distance L1 between the pin 2222 of the second terminal set 22D and the connecting portion 223 is less than the distance L2 between the pin 2222 of the first terminal set 22C and the connecting portion 223.
As shown in fig. 2 and 4, the conductive parts 222 of the first terminal group 22C and the second terminal group 22D on two sides of the insertion slot 211 are arranged in four rows in the transverse direction Y, and each of the conductive terminals 22 corresponding to the conductive parts 222 in each row includes a plurality of signal terminals 22A and a plurality of ground terminals 22B. The lead-connecting portions 222 of the first terminal set 22C on the same side of the slot 211 are located in one row on the outer side thereof, and the lead-connecting portions 222 of the second terminal set 22D are located in one row on the other inner side thereof. The two rows of the conducting portions 222 of the second terminal group 22D on the two sides of the slot 211 are arranged in a staggered manner in the longitudinal direction X, and the two rows of the conducting portions 222 of the first terminal group 22C on the two sides of the slot 211 are arranged in a staggered manner in the longitudinal direction X, so that the conducting portions 222 of the second terminal group 22D on one side of the slot 211 are aligned with the conducting portions 222 of the first terminal group 22C on the other side of the slot 211 in the transverse direction Y, and the arrangement is such that the distances between any two conducting portions 222 aligned with each other in the transverse direction Y are equal. In other embodiments, the conductive terminals 22 corresponding to each row of the conductive portions 222 only include one signal terminal 22A and one ground terminal 22B.
As shown in fig. 4, most of the first terminal group 22C and the second terminal group 22D are composed of one signal terminal 22A and one ground terminal 22B, since the first terminal groups 22C and the second terminal groups 22D on the same side of the slot 211 are alternately arranged along the longitudinal direction X (see fig. 2 for the sake of convenience), the second terminal groups 22D on both sides of the slot 211 are arranged along the longitudinal direction X in a staggered manner, and in these first terminal group 22C having at least one signal terminal 22A and the second terminal group 22D having at least one signal terminal 22A, the signal terminal 22A thereof is misaligned with the other signal terminals 22A in the adjacent row in the longitudinal direction X. In the continuous arrangement of the first terminal group 22C having at least one of the signal terminals 22A and the second terminal group 22D having at least one of the signal terminals 22A, two of the signal terminals 22A in two adjacent rows are spaced apart by not more than two of the ground terminals 22B in the longitudinal direction X.
As shown in fig. 5 to 7, the circuit board 3 has four rows of contacts 31 corresponding to the four rows of the connecting portions 222, in this embodiment, the contacts 31 are plated through holes formed on the circuit board 3 and receive the pins 2222 of the corresponding connecting portions 222. Each row of said contacts 31 comprises: a plurality of signal contacts 31A for electrically connecting the connecting portions 222 of the signal terminals 22A, and a plurality of ground contacts 31B for electrically connecting the connecting portions 222 of the ground terminals 22B. The signal contacts 31A in two adjacent rows are shifted in the longitudinal direction X with respect to the signal terminals 22A. In the continuous arrangement of the contacts 31 corresponding to the first terminal group 22C having at least one signal terminal 22A and the second terminal group 22D having at least one signal terminal 22A, two signal contacts 31A in two adjacent rows are not separated by more than two ground contacts 31B in the longitudinal direction X.
As shown in fig. 5 to 7, since the conductive portion 222 of the same conductive terminal 22 is bent with respect to the connecting portion 223, the projection of the connecting portion 223 on the circuit board 3 does not overlap with the contact 31 and also does not overlap with the pin 2222, so that the density of the conductive paths of the connector assembly 1 at the circuit board 3 is reduced with respect to the connecting portion 223, and the crosstalk phenomenon at the circuit board 3 is improved.
As shown in fig. 5 to 7, the circuit board 3 further has a plurality of adjustment holes 32 for grounding, and each of the adjustment holes 32 is a through hole penetrating through the circuit board 3, but does not receive any part of the electrical connector 2, but is a vacant hole provided on the circuit board 3. The adjustment hole 32 and the ground contact 31B are electrically connected to each other through a ground layer (not shown) inside the circuit board 3. Each of the adjusting holes 32 is disposed between two specific signal contacts 31A, so as to reduce the mutual crosstalk between the two signal contacts 31A on two sides of the adjusting hole 32 and the two connecting portions 222 of the two corresponding signal terminals 22A. The adjusting holes 32 are arranged according to the following rule: the adjustment hole 32 is disposed between two signal contacts 31A of two adjacent rows and separated by only zero or one ground contact 31B in the longitudinal direction X. In this embodiment, the adjusting holes 32 are only disposed between the two middle rows of the signal contacts 31A and located at the midpoint of the connecting line of the two signal contacts 31A satisfying the above rule, and the adjusting holes 32 are arranged in a row along the longitudinal direction X and located right below the slot 211. The aperture of the adjustment hole 32 is smaller than the aperture of the signal contact 31A and the aperture of the ground contact 31B.
As shown in fig. 8, in the second embodiment of the electrical connector 2 and the connector assembly 1 of the present invention, in this embodiment, the electrical connector 2 further has two grounding members 24, and the circuit board 3 has more adjusting holes 32 at other positions.
As shown in fig. 9 and 10, the grounding pieces 24 are mounted on the bottom of the body 21 and disposed between the conductive terminals 22 on both sides of the insertion slot 211 in the transverse direction Y, and the two grounding pieces 24 are arranged along the longitudinal direction X. Each of the grounding members 24 has a main body portion 241 extending along the longitudinal direction X and a plurality of grounding pins 242 extending downward from the main body portion 241, the plurality of grounding pins 242 are disposed corresponding to the grounding terminals 22B in the two rows of the second terminal sets 22D, that is, the number of the plurality of grounding pins 242 is the same as the number of the grounding contacts 31B in the middle two rows on the circuit board 3. The main body 241 is a flat plate perpendicular to the circuit board 3, is located below the insertion groove 211, and is also located between the two rows of the connection portions 223 at two sides of the insertion groove 211, so that crosstalk between the connection portions 223 at two sides can be weakened to a certain extent. The plurality of grounding pins 242 are connected to the lower end of the main body portion 241, and bent toward the conductive terminals 22 at two sides of the slot 211, and the grounding pins 242 further extend downward to enter the two middle rows of the grounding contacts 31B and contact the corresponding guiding portions 222 of the grounding contacts 31B, so that the guiding portions 222 in the two middle rows are connected to each other through the grounding layer of the circuit board 3, and also connected to each other through the grounding member 24, thereby enhancing the grounding effect. As shown in fig. 12, the aperture of the ground contact 31B, which accommodates both the ground pin 242 and the pin 2222, is larger than the apertures of the other contacts 31 on the circuit board 3.
As shown in fig. 10 to 12, the adjusting holes 32 are disposed between the two rows of the conductive portions 222 of the second terminal set 22D, and also disposed between the two rows of the signal contacts 31A corresponding to the two rows of the conductive portions 222 of the first terminal set 22C and the second terminal set 22D on the same side of the insertion slot 211 (refer to fig. 9 for assistance), so as to reduce crosstalk between the signal contacts 31A corresponding to the first terminal set 22C and the signal contacts 31A corresponding to the second terminal set 22D.
As shown in fig. 10 to 12, a part of the first terminal group 22C or the second terminal group 22D of the electrical connector 2 is composed of two signal terminals 22A, and two grounding holes 33 are further provided on the circuit board 3 at two lateral sides of the two signal contacts 31A corresponding to the first terminal group 22C and the second terminal group 22D, so as to improve the high frequency performance of the two signal terminals 22A.
As shown in fig. 13, a far-end crosstalk strength measurement curve between the two rows of the guiding portions 222 in the middle of the connector assembly 1 is obtained when the electrical connector 2 is mounted on the circuit board 3, that is, when the guiding portions 222 are correspondingly received in the contacts 31. In fig. 13, the vertical axis represents the strength of crosstalk in decibels (dB), and the smaller the value, the weaker the crosstalk, and the horizontal axis represents the magnitude of signal frequency in gigahertz (GHz), and fig. 13 includes four test patterns, in which a dotted line M represents the crosstalk curve of the connector assembly 1 (i.e., the first embodiment) in which the adjustment hole 32 is provided, a solid line N represents the crosstalk curve of the connector assembly 1 (i.e., the second embodiment) in which the adjustment hole 32 and the ground member 24 are provided simultaneously, a two-dot chain line O represents the crosstalk curve of the connector assembly without the adjustment hole 32 and without the ground member 24 but including the first terminal group 22C and the second terminal group 22D which are alternately arranged, and a dot-dot chain line P represents the crosstalk curve of the connector assembly without the adjustment hole 32 and without the ground member 24 and using the conductive terminals on the same side of the slot in the specification (i.e., the prior art). Referring to fig. 13, in the interval of 0-15GHz, the height of the curve M and the height of the curve N are both lower than the height of the curve O, in some frequency intervals, the height of the curve M is lower than the height of the curve N, and in the interval of 0-15GHz, the curves M, N, and O are all lower than the curve P, that is, the conductive terminals 22 of the connector assembly 1 are alternately arranged according to the first terminal group 22C and the second terminal group 22D, which can improve crosstalk compared with the prior art, on the basis of which the adjusting holes 32 are provided between the two signal contacts 31A in two adjacent rows, the crosstalk strength can be further reduced, and the additional increase of the grounding element 24 can additionally reduce crosstalk in some frequency intervals.
The invention has the following beneficial effects:
(1) The plurality of conductive terminals 22 on each side of the insertion slot 211 include a plurality of first terminal groups 22C and a plurality of second terminal groups 22D alternately arranged along the longitudinal direction X, each of the first terminal groups 22C and the second terminal groups 22D is composed of two adjacent conductive terminals 22, the connecting portions 223 of the first terminal groups 22C and the connecting portions 223 of the second terminal groups 22D on the same side of the insertion slot 211 are arranged in a row in the longitudinal direction X, the two guiding portions 222 of the first terminal groups 22C are bent outward relative to the connecting portions 223 thereof in the second terminal groups 22D in the transverse direction Y away from the insertion slot 211, specifically, in this embodiment, the guiding portions 222 of the first terminal groups 22C are bent outward relative to the connecting portions 223 thereof in a direction away from the insertion slot 211, the guiding portions 222 of the second terminal groups 22D are bent inward relative to the connecting portions 223 thereof in a direction close to the insertion slot 211, that the bending directions of the guiding portions 222 of the first terminal groups 22C and the second terminal groups 22D are bent inward relative to the connecting portions 223 thereof in a direction close to the insertion slot 211, and the adjacent conductive terminals 22C and the guiding portions 222 on the same side of the insertion slot 211 have a reduced contact point density, which is reduced by the same side of the contact point of the circuit board, and the contact point of the circuit board can be reduced by the reduced contact point density of the multiple contact point of the multiple contact points 31; the adjustment holes 32 are grounded, so that crosstalk interference between two adjacent signal contacts 31A on two sides of each adjustment hole 32 and the connecting portions 222 of the corresponding signal terminals 22A is further reduced, and signal integrity is improved.
(2) The adjusting holes 32 are also arranged according to the following rule: the adjustment hole 32 is disposed between two signal contacts 31A located in two adjacent rows and separated by zero or one ground contact 31B in the longitudinal direction X, so as to set crosstalk between the lead-in portion 222 of two signal terminals 22A and the corresponding signal contact 31A in two adjacent rows with sufficiently close reduced spacing.
(3) The length of the extension section 2221 of the second terminal set 22D extending in the transverse direction Y is less than the length of the extension section 2221 of the first terminal set 22C extending in the transverse direction Y, or the distance between the pin 2222 of the second terminal set 22D and the connecting portion 223 is less than the distance between the pin 2222 of the first terminal set 22C and the connecting portion 223 in the transverse direction Y, so as to avoid that the lead portions 222 of the second terminal set 22D on both sides of the slot 211 are too close to each other to cause crosstalk enhancement.
(4) The lead portions 222 of the first terminal set 22C are bent outwardly relative to the connecting portions 223 thereof in a direction away from the insertion slot 211, the lead portions 222 of the second terminal set 22D are bent inwardly relative to the connecting portions 223 thereof in a direction toward the insertion slot 211, that is, the bending direction of the lead portions 222 of the first terminal set 22C on the same side of the insertion slot 211 is opposite to the bending direction of the lead portions 222 of the second terminal set 22D, and the lead portions 222 of the first terminal set 22C and the second terminal set 22D between two adjacent rows are staggered, so that the lead portions 222 of each of the first terminal set 22C and the second terminal set 22D maintain a relatively large distance from the lead portions 222 of the other first terminal set 22C and the other second terminal set 22D, thereby reducing mutual crosstalk.
(5) The grounding member 24 has the main body portion 241 extending along the longitudinal direction X and a plurality of grounding pins 242 extending downward from the main body portion 241, and the number of the plurality of grounding pins 242 is the same as the number of the middle two rows of the grounding contacts 31B on the circuit board 3. The main body 241 is a flat plate perpendicular to the circuit board 3, is located below the slot 211, and is also located between the two rows of the connecting portions 223 at the two sides of the slot 211, so that crosstalk between the connecting portions 223 at the two sides of the slot 211 can be weakened to a certain extent. The plurality of grounding pins 242 are connected to the lower end of the main body portion 241 and bent toward the conductive terminals 22 at both sides, and the grounding pins 242 also extend downward to enter the two middle rows of the grounding contacts 31B and contact with the corresponding conductive connection portions 222 of the grounding contacts 31B, so that the conductive connection portions 222 in the two middle rows are connected to each other through the grounding layer of the circuit board 3, and also connected to each other through the grounding member 24, thereby enhancing the grounding effect.
The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, so that the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.
Claims (25)
1. A connector assembly comprising a circuit board and an electrical connector mounted to the circuit board, the electrical connector comprising a body and a plurality of conductive terminals mounted to the body, the body having a slot recessed downwardly from a top surface of the body and extending in a lengthwise direction, the slot having a plurality of conductive terminals distributed on opposite sides of a transverse direction, the transverse direction being perpendicular to the lengthwise direction, each conductive terminal having a contact portion entering the slot, a lead portion extending downwardly beyond a bottom surface of the body, and a connection portion connecting the contact portion and the lead portion, the connector assembly comprising:
the plurality of conductive terminals on each side of the slot comprise a plurality of first terminal groups and a plurality of second terminal groups which are alternately arranged along the lengthwise direction, each of the first terminal groups and the second terminal groups consists of two adjacent conductive terminals, and two conductive connection parts in the first terminal groups are far away from the slot relative to two conductive connection parts in the second terminal groups in the transverse direction;
the first terminal group and the guide connection part of the second terminal group on two sides of the slot are arranged in four rows in the transverse direction, the guide connection part of the first terminal group on the same side of the slot is positioned in one row, the guide connection part of the second terminal group is positioned in the other row, and the conductive terminals corresponding to the guide connection parts in each row comprise a plurality of signal terminals and a plurality of grounding terminals;
each conductive terminal is provided with only one connecting part at the bottom end of the connecting part, the connecting part is positioned at one longitudinal side corresponding to the guide connecting part and used for connecting a material belt, and in each first terminal group and the second terminal group, the connecting parts of the two conductive terminals are positioned between the two guide connecting parts in the longitudinal direction;
the circuit board is provided with at least one adjusting hole and four rows of contacts corresponding to the four rows of the conducting parts, each row of the contacts comprises a plurality of signal contacts conducting the conducting parts of the signal terminals and a plurality of grounding contacts conducting the conducting parts of the grounding terminals, the adjusting hole is electrically connected with the grounding contacts through the circuit board, and the adjusting hole is positioned between two adjacent rows of the signal contacts.
2. The connector assembly of claim 1, wherein: the conducting part of the second terminal group at one side of the slot and the conducting part of the second terminal group at the other side are arranged along the longitudinal direction in a staggered mode, and the adjusting hole is formed between two rows of signal contacts corresponding to the conducting parts of the second terminal group.
3. The connector assembly of claim 1, wherein: the adjusting hole is arranged between the two rows of signal contacts corresponding to the first terminal group and the second terminal group on the same side of the slot.
4. The connector assembly of claim 1, wherein: the adjusting holes are arranged between two signal contacts which are positioned in two adjacent rows and are only separated by zero or one grounding contact in the longitudinal direction.
5. The connector assembly of claim 4, wherein: the adjusting hole is positioned on the midpoint of the connecting line of the two signal contacts.
6. The connector assembly of claim 1, wherein: the two second terminal groups positioned in two adjacent rows are respectively composed of one signal terminal and one grounding terminal, and the adjusting hole is arranged between the two signal contacts corresponding to the two second terminal groups in two adjacent rows.
7. The connector assembly of claim 1, wherein: the contact points are electroplating through holes formed in the circuit board and accommodate the corresponding guide connection parts.
8. The connector assembly of claim 1, wherein: the conductive portion is bent in the transverse direction with respect to the connecting portion, and the bending direction of the conductive portion of the first terminal group is opposite to the bending direction of the conductive portion of the second terminal group.
9. The connector assembly of claim 8, wherein: the connecting portion comprises an extending section formed by bending and extending the connecting portion in the transverse direction and a pin formed by extending the extending section downwards, the pin is connected with the corresponding contact in a guiding manner, the connecting portion of the first terminal group and the connecting portion of the second terminal group on the same side of the slot are arranged in a row in the longitudinal direction, and the extending length of the extending section of the second terminal group in the transverse direction is smaller than the extending length of the extending section of the first terminal group in the transverse direction.
10. A connector assembly comprising a circuit board and an electrical connector mounted to the circuit board, the electrical connector comprising a body and a plurality of conductive terminals mounted to the body, a slot recessed downwardly from a top surface of the body and extending in a lengthwise direction, the slot having a plurality of conductive terminals distributed on opposite sides of a transverse direction, the transverse direction being perpendicular to the lengthwise direction, the conductive terminals comprising a plurality of signal terminals and a plurality of ground terminals, each of the conductive terminals having a contact portion entering the slot, a lead portion extending downwardly beyond the bottom surface of the body, and a connection portion connecting the contact portion with the lead portion, the connector assembly characterized in that:
the plurality of conductive terminals on each side of the slot comprise a plurality of first terminal groups and a plurality of second terminal groups, the first terminal groups and the second terminal groups are respectively composed of two adjacent conductive terminals, two conductive connection parts in the first terminal groups are far away from the slot in the transverse direction relative to two conductive connection parts in the second terminal groups, and the first terminal groups and the second terminal groups on the same side of the slot are alternately arranged;
the first terminal group and the guide connection part of the second terminal group on two sides of the slot are arranged in four rows in the transverse direction, the guide connection part of the first terminal group on the same side of the slot is positioned in one row, the guide connection part of the second terminal group is positioned in the other row, and the conductive terminals corresponding to the guide connection parts in each row comprise a plurality of signal terminals and a plurality of grounding terminals;
the circuit board is provided with a plurality of adjusting holes and four rows of contacts corresponding to the four rows of the connecting parts, each row of the contacts comprises a plurality of signal contacts of the connecting parts of the signal terminals and a plurality of grounding contacts of the connecting parts of the grounding terminals, each adjusting hole is electrically connected with the grounding contacts through the circuit board, and each adjusting hole is positioned between two adjacent rows of the signal contacts;
each guide connection part comprises an extension section formed by bending and extending the connection part in the transverse direction and a pin formed by extending the extension section downwards, the pins are connected with the corresponding contacts in a guide way, the connection parts of the first terminal group and the connection parts of the second terminal group on the same side of the slot are arranged in a row in the longitudinal direction, and the distance between the pins and the connection parts of the second terminal group in the transverse direction is smaller than that between the pins and the connection parts of the first terminal group;
the electric connector also comprises a grounding piece, the grounding piece is arranged between the conductive terminals at two sides of the slot in the transverse direction, and the grounding piece is in contact with the grounding terminals corresponding to the two rows of the guiding parts in the middle to form electric connection.
11. The connector assembly of claim 10, wherein: the contact points are electroplating through holes formed on the circuit board and accommodate the corresponding guide connection parts.
12. The connector assembly of claim 11, wherein: the grounding piece is provided with a plurality of grounding pins, and each grounding pin and the conducting part of one grounding terminal are accommodated in the same grounding contact and are in contact with each other.
13. The connector assembly of claim 12, wherein: and the grounding contact of the guide connection part for accommodating the grounding pin and the grounding terminal at the same time has a larger aperture than the apertures of the other contacts.
14. The connector assembly of claim 10, wherein: the adjusting holes are arranged between two signal contacts which are positioned in two adjacent rows and are only separated by zero or one grounding contact in the longitudinal direction.
15. The connector assembly of claim 10, wherein: each adjusting hole is positioned between two rows of signal contacts of the conducting part corresponding to the second terminal group, and the adjusting holes are positioned on a connecting line of two adjacent signal contacts of two adjacent rows.
16. A connector assembly comprising a circuit board and an electrical connector mounted to the circuit board, the electrical connector comprising a body and a plurality of conductive terminals mounted to the body, the body having a slot recessed downwardly from a top surface of the body and extending in a lengthwise direction, the slot having a plurality of conductive terminals distributed on opposite sides of a transverse direction, the transverse direction being perpendicular to the lengthwise direction, each conductive terminal having a contact portion entering the slot, a lead portion extending downwardly beyond a bottom surface of the body, and a connecting portion connecting the contact portion to the lead portion, the plurality of conductive terminals comprising a plurality of signal terminals and a plurality of ground terminals, the electrical connector assembly comprising:
the plurality of conductive terminals on each side of the slot comprise a plurality of first terminal groups and a plurality of second terminal groups which are arranged along the longitudinal direction, the first terminal groups and the second terminal groups are respectively composed of two adjacent conductive terminals, and two conductive parts in the first terminal groups are far away from the slot in the transverse direction relative to two conductive parts in the second terminal groups;
the first terminal group and the conducting parts of the second terminal group on two sides of the slot are arranged in four rows in the transverse direction, the conducting parts of the first terminal group on the same side of the slot are positioned in one row, the conducting parts of the second terminal group are positioned in the other row, and the two rows of conducting parts of the second terminal group on two sides of the slot are arranged in a staggered manner in the longitudinal direction, wherein the conductive terminals corresponding to each row of the conducting parts comprise a plurality of signal terminals and a plurality of grounding terminals;
the circuit board is provided with at least one adjusting hole and four rows of contacts corresponding to the four rows of the conducting parts, each row of the contacts comprises a plurality of signal contacts conducting with the conducting parts of the signal terminals and a plurality of grounding contacts conducting with the conducting parts of the grounding terminals, the adjusting holes are electrically connected with the grounding contacts through the circuit board, the signal contacts in two adjacent rows are staggered in the longitudinal direction, and each adjusting hole is positioned between two staggered signal contacts in two adjacent rows;
each the lead connection portion includes for connecting portion are in a lateral direction bending and extending an extension section that forms and certainly a pin that the extension section downwardly extending formed, the pin with correspond the joint is led and is connect, the slot is with one side first terminal group the connecting portion with second terminal group the connecting portion are in become one row setting in the vertical direction on the lateral direction, second terminal group the pin with the distance between the connecting portion is less than first terminal group the pin with the distance between the connecting portion.
17. The connector assembly of claim 16, wherein: the adjusting holes are arranged between two signal contacts which are positioned in two adjacent rows and are only separated by zero or one grounding contact in the longitudinal direction.
18. The connector assembly of claim 16, wherein: each adjusting hole is positioned between two rows of signal contacts of the conducting part corresponding to the second terminal group.
19. The connector assembly of claim 18, wherein: the two second terminal groups positioned in two adjacent rows are respectively composed of one signal terminal and one grounding terminal, and the adjusting hole is arranged between the two signal contacts corresponding to the two second terminal groups in two adjacent rows.
20. The connector assembly of claim 16, wherein: the connecting part is bent in the transverse direction relative to the connecting part, and the bending direction of the connecting part of the first terminal group on the same side of the slot is opposite to that of the connecting part of the second terminal group.
21. An electrical connector for mounting to a circuit board having at least one alignment hole and a plurality of contacts arranged in four rows in a transverse direction, each row of the contacts including a plurality of signal contacts and a plurality of ground contacts, the alignment hole and the ground contacts being electrically connected through the circuit board, comprising:
a body having a slot recessed downwardly from a top surface of the body and extending in a lengthwise direction, the lengthwise direction being perpendicular to the transverse direction;
the conductive terminals are arranged on the body, the conductive terminals are uniformly distributed on two transverse sides of the slot, each conductive terminal is provided with a contact part entering the slot, a guide connection part downwards exceeding the bottom surface of the body and a connection part connecting the contact part and the guide connection part, and each guide connection part is in guide connection with one contact point;
the conductive terminals on each side of the slot respectively comprise a plurality of first terminal groups and a plurality of second terminal groups which are alternately arranged along the longitudinal direction, the first terminal groups and the second terminal groups respectively comprise two adjacent conductive terminals, and two conductive parts in the first terminal groups are far away from the slot in the transverse direction relative to two conductive parts in the second terminal groups;
the first terminal group and the conducting parts of the second terminal group on two sides of the slot are arranged in four rows in the transverse direction, the conducting parts of the first terminal group on the same side of the slot are positioned in one row, the conducting parts of the second terminal group are positioned in the other row, a plurality of conductive terminals corresponding to each row of the conducting parts comprise a plurality of signal terminals and a plurality of grounding terminals, and the adjusting holes are positioned between two adjacent rows of the contacts which are in conducting connection with the signal terminals;
each the lead connection portion includes for connecting portion are in a lateral direction bending and extending an extension section that forms and certainly a pin that the extension section downwardly extending formed, the pin with correspond the joint is led and is connect, the slot is with one side first terminal group connecting portion with second terminal group connecting portion are in become one row in the vertical direction sets up in the lateral direction, second terminal group the pin with distance between the connecting portion is less than first terminal group the pin with distance between the connecting portion.
22. The electrical connector of claim 21, wherein: each conductive terminal is in the bottom of connecting portion only is equipped with a material portion of even, even material portion is used for connecting a material area, even material portion with the guide connection portion along lengthwise direction connect in side by side in connecting portion, in each first terminal group with in the second terminal group, two of conductive terminal two material portion of even is in lengthwise direction is located two between the guide connection portion.
23. The electrical connector of claim 21, wherein: the grounding piece is arranged between the conductive terminals on two sides of the slot in the transverse direction, and the grounding piece is in contact with the grounding terminals corresponding to the two rows of the conducting parts in the middle to form electric connection.
24. The electrical connector of claim 23, wherein: the contact is a plated through hole formed on the circuit board and accommodates the corresponding conductive connection part, the grounding piece is provided with a plurality of grounding pins, and each grounding pin and the conductive connection part of the corresponding grounding terminal are accommodated in the same contact and are mutually connected in a conductive manner.
25. The electrical connector of claim 21, wherein: the connecting part is bent in the transverse direction relative to the connecting part, and the bending direction of the connecting part of the first terminal group on the same side of the slot is opposite to that of the connecting part of the second terminal group.
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| CN202110099798.XA CN112952427B (en) | 2021-01-25 | 2021-01-25 | Electric connector and connector assembly |
| US17/533,241 US11626693B2 (en) | 2021-01-25 | 2021-11-23 | Electrical connector and connector assembly |
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| CN202110099798.XA CN112952427B (en) | 2021-01-25 | 2021-01-25 | Electric connector and connector assembly |
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| CN109301545A (en) * | 2018-10-11 | 2019-02-01 | 番禺得意精密电子工业有限公司 | Electric connector |
| CN109616795A (en) * | 2018-11-05 | 2019-04-12 | 番禺得意精密电子工业有限公司 | Electric connector |
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| US7500871B2 (en) * | 2006-08-21 | 2009-03-10 | Fci Americas Technology, Inc. | Electrical connector system with jogged contact tails |
| CN102117993B (en) * | 2009-12-30 | 2013-05-08 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| US8845364B2 (en) * | 2013-02-27 | 2014-09-30 | Molex Incorporated | High speed bypass cable for use with backplanes |
| CN108631094B (en) * | 2017-03-16 | 2020-02-04 | 莫列斯有限公司 | Electric connector and electric connector combination |
| CN107658585B (en) * | 2017-08-21 | 2019-08-30 | 番禺得意精密电子工业有限公司 | Connector |
| CN110474184B (en) * | 2018-05-09 | 2020-12-11 | 陈松佑 | Card edge connector and circuit board assembly for memory module cards |
| CN110474183B (en) * | 2018-05-09 | 2020-11-20 | 陈松佑 | Card edge connector and circuit board combination for memory module card |
| CN110676617B (en) * | 2018-07-03 | 2022-06-24 | 富士康(昆山)电脑接插件有限公司 | Card edge connector |
| CN208923496U (en) * | 2018-10-22 | 2019-05-31 | 东莞骅国电子有限公司 | Multi-point grounded electrical connector |
| CN109546387B (en) * | 2019-01-18 | 2023-10-10 | 四川华丰科技股份有限公司 | Common cavitation common male end base |
| CN110086018B (en) * | 2019-03-22 | 2020-12-22 | 番禺得意精密电子工业有限公司 | Electrical connector |
| CN111029821A (en) * | 2019-12-20 | 2020-04-17 | 宣德科技股份有限公司 | Slot connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109301545A (en) * | 2018-10-11 | 2019-02-01 | 番禺得意精密电子工业有限公司 | Electric connector |
| CN109616795A (en) * | 2018-11-05 | 2019-04-12 | 番禺得意精密电子工业有限公司 | Electric connector |
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