CN111129879A - Electric connector with high interference prevention function - Google Patents
Electric connector with high interference prevention function Download PDFInfo
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- CN111129879A CN111129879A CN201911288861.3A CN201911288861A CN111129879A CN 111129879 A CN111129879 A CN 111129879A CN 201911288861 A CN201911288861 A CN 201911288861A CN 111129879 A CN111129879 A CN 111129879A
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- grounding
- terminal
- groups
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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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
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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
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses an electric connector with a high anti-interference function, which comprises a plastic body and two groups of terminal groups, wherein each terminal group is respectively provided with a plurality of signal terminals and a plurality of grounding terminals which are vertically arranged and arranged side by side along the left-right direction and are combined with the plastic body into a whole, and the two groups of terminal groups are also arranged in parallel front and back; the plurality of grounding pieces are arranged in the plastic body and are respectively and correspondingly arranged on the front side and the rear side of the bottoms of the two groups of terminal groups; and a plurality of ground terminals in each terminal group also cooperate with the ground lugs positioned at the front side and the rear side of the terminal group to form a plurality of shielding separation cavities which are sequentially arranged at intervals along the left-right direction, and a plurality of signal terminals in a terminal group are respectively and correspondingly arranged in the plurality of shielding separation cavities. The electric connector can effectively improve the crosstalk interference problem between the signal terminals and well improve the shielding effect of the electric connector.
Description
Technical Field
The invention relates to the technical field of connectors, and particularly provides an electric connector with a high interference prevention function.
Background
In high-speed digital circuits, one of the important reasons that affect the accuracy of the transmitted signal is crosstalk. The crosstalk phenomenon is a phenomenon in which adjacent lines are delayed from each other in signal reception due to interference caused by electromagnetic coupling, and particularly, when the signal transmission directions of the two lines are the same, serious crosstalk interference is caused. In order to avoid the crosstalk, manufacturers commonly add a ground line between the interfering lines to provide signal protection and prevent the undesired crosstalk.
However, in the electrical connector structure, since the shielding function of the ground terminal is relatively limited, the signal terminals cannot be effectively isolated, and crosstalk interference still occurs between the signal terminals, so that the integrity of signals is affected, signal delay is caused, the correctness of signal transmission of the electrical connector is reduced, and the high-frequency transmission requirement of the high-speed signal terminals cannot be met.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
In order to overcome the above defects, the present invention provides an electrical connector with a high interference prevention function, which can effectively improve the crosstalk interference between signal terminals, well improve the shielding effect of the electrical connector, improve the integrity, correctness and transmission efficiency of signals transmitted by the electrical connector, and meet the high-frequency transmission requirement of high-speed signal terminals.
The technical scheme adopted by the invention for solving the technical problem is as follows: an electric connector with a high anti-interference function comprises a plastic body and two groups of terminal groups, wherein each terminal group is respectively provided with a plurality of signal terminals and a plurality of grounding terminals, the installation state of the electric connector fixed on a circuit board is taken as a reference, the signal terminals and the grounding terminals are vertically arranged, the signal terminals and the grounding terminals are also arranged side by side along the left and right direction according to the design requirement and are combined with the plastic body into a whole, and meanwhile, the two groups of terminal groups are also arranged in parallel front and back; in addition, a plurality of grounding sheets are arranged on the plastic body; the plurality of grounding pieces are arranged in the plastic body and are respectively and correspondingly arranged on the front side and the rear side of the bottoms of the two terminal groups; and a plurality of grounding terminals in each terminal group also cooperate with the grounding pieces positioned at the front side and the rear side of the terminal group to form a plurality of shielding separation cavities which are sequentially arranged at intervals along the left-right direction, and a plurality of signal terminals in one terminal group are respectively and correspondingly arranged in the plurality of shielding separation cavities.
As a further improvement of the present invention, two sets of separation assemblies are provided, the two sets of separation assemblies are in one-to-one correspondence with the two sets of terminal groups, each separation assembly is provided with a plurality of spacers made of conductive materials respectively, the plurality of spacers are arranged side by side in the left-right direction between the grounding pieces positioned at the front and rear sides of one terminal group, and the front and rear sides of the plurality of spacers are in contact with the grounding pieces matched therewith respectively, and the plurality of spacers are in one-to-one correspondence with and in contact with the plurality of grounding terminals respectively; therefore, every two adjacent spacers, the grounding plate and the two grounding terminals which are matched with the two adjacent spacers, jointly enclose the shielding compartment.
As a further improvement of the invention, the number of the grounding plates is four, and the four grounding plates are respectively of a long strip-shaped sheet structure extending along the left-right direction; dividing the four grounding pieces into two groups, wherein two grounding pieces in one group are respectively arranged beside the front side and the rear side of the bottom of one terminal group and respectively and correspondingly contacted with the front side and the rear side of a plurality of spacers in one separation assembly; and the two grounding sheets in the other group are respectively arranged beside the front side and the rear side of the bottom of the other terminal group and respectively correspondingly contacted with the front side and the rear side of the plurality of spacers in the other separation assembly.
As a further improvement of the present invention, each of the spacers has a first spacer in an L-shaped sheet shape, and a second spacer in a straight sheet shape integrally connected to a lateral section of the first spacer, wherein the lateral section and the vertical section of the first spacer are respectively in contact with a bottom of the ground terminal and a ground plate, respectively, and the second spacer is in contact with the other ground plate;
when the electric connector is assembled, the two groups of terminal groups, the four grounding pieces and the two groups of separating assemblies are arranged according to design requirements, and then the plastic body is molded on the two groups of terminal groups, the four grounding pieces and the two groups of separating assemblies by using a plastic molding process.
As a further improvement of the present invention, each of the spacers has two spacer pieces, one of the spacer pieces is disposed between the front side of the bottom of the corresponding ground terminal and the ground piece located in front of the ground terminal, the other spacer piece is disposed between the rear side of the bottom of the corresponding ground terminal and the other ground piece located behind the ground terminal, and at the same time, each of the spacer pieces is also in contact with the corresponding ground piece and the corresponding ground terminal;
when the electric connector is assembled, the plastic body is manufactured by a plastic molding process, and a plurality of mounting hole grooves which are arranged according to the design requirement are molded on the plastic body; then, the two groups of terminal groups, the four grounding plates and the two groups of separating assemblies are correspondingly inserted into the plurality of mounting hole grooves.
As a further improvement of the present invention, each of the signal terminals has a signal terminal main body having an elongated shape and a signal leg integrally formed on a bottom end of the signal terminal main body, each of the ground terminals has a ground terminal main body having an elongated shape and a ground leg integrally formed on a bottom end of the ground terminal main body, and a width of a bottom portion of the ground terminal main body in the front-rear direction is larger than a width of the bottom portion of the signal terminal main body in the front-rear direction;
in addition, the grounding pieces positioned at the front side and the rear side of each terminal group are correspondingly contacted with the front side and the rear side of the bottoms of the grounding terminal main bodies in the terminal groups respectively, so that the bottoms of every two adjacent grounding terminal main bodies and the grounding pieces matched with the bottoms of every two adjacent grounding terminal main bodies can jointly enclose a shielding separation cavity;
when the electric connector is assembled, the plastic body is manufactured by a plastic molding process, and a plurality of mounting hole grooves which are arranged according to the design requirement are molded on the plastic body; then, the two groups of terminal groups and the plurality of grounding plates are correspondingly inserted into the plurality of mounting hole grooves.
As a further improvement of the present invention, the left and right side surfaces of the bottom of each ground terminal main body are both flat surfaces, and the left and right side surfaces of the bottom of each ground terminal main body are respectively integrally formed with a holding projection.
As a further improvement of the invention, the number of the grounding plates is four, and the four grounding plates are respectively of a long strip-shaped sheet structure extending along the left-right direction; dividing the four grounding pieces into two groups, wherein two grounding pieces in one group are respectively arranged on the front side and the rear side of the bottom of one terminal group and are respectively correspondingly contacted with the front side and the rear side of the bottoms of a plurality of grounding terminal main bodies in one terminal group, namely forming a plurality of shielding separation cavities; the two grounding sheets in the other group are respectively arranged at the front side and the rear side of the bottom of the other terminal group and respectively correspondingly contacted with the front side and the rear side of the bottoms of the grounding terminal main bodies in the other terminal group, namely, a plurality of shielding separation cavities are formed.
As a further improvement of the invention, each grounding plate is provided with a strip plate main body extending along the left-right direction;
the two adjacent strip main bodies which belong to different groups are also oppositely provided with a plurality of abutting parts.
As a further improvement of the present invention, a plurality of the abutting portions on the same strip main body are arranged at intervals in the left-right direction; and the plurality of abutting parts on the two strip main bodies are distributed in a staggered manner.
The invention has the beneficial effects that: according to the invention, a plurality of shielding separation cavities are formed on the plastic body, and a plurality of signal terminals are respectively and correspondingly arranged in the plurality of shielding separation cavities; therefore, the signal terminals can be surrounded by the shielding separation cavity to form electromagnetic shielding, so that the problem of crosstalk interference between the signal terminals can be effectively solved, the shielding effect of the electric connector is well improved, the integrity, the correctness and the transmission efficiency of signals transmitted by the electric connector are improved, and the high-frequency transmission requirement of high-speed signal terminals can be met.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of an electrical connector according to the present invention;
FIG. 2 is a partial schematic view of the section A-A shown in FIG. 1;
FIG. 3 is a schematic view of the interference preventing principle of the first embodiment of the electrical connector of the present invention;
FIG. 4 is an exploded view of the first embodiment of the electrical connector of the present invention;
FIG. 5 is an enlarged schematic view of the X-part of FIG. 4;
FIG. 6 is an enlarged schematic view of the spacer of the present invention;
FIG. 7 is a schematic structural view of the grounding plate of the present invention;
FIG. 8 is a schematic perspective view of a second embodiment of the electrical connector of the present invention;
FIG. 9 is a schematic top view of a second embodiment of the electrical connector of the present invention;
FIG. 10 is a schematic cross-sectional view of the Y-section of FIG. 9 in the front-rear direction;
FIG. 11 is a schematic view of the interference preventing principle of the second embodiment of the electrical connector of the present invention;
FIG. 12 is a partial structural view of the section B-B shown in FIG. 9;
FIG. 13 is an exploded view of a second embodiment of the electrical connector of the present invention;
fig. 14 is a schematic perspective view of a third embodiment of the electrical connector of the present invention;
fig. 15 is a schematic top view of a third embodiment of the electrical connector of the present invention;
FIG. 16 is a schematic cross-sectional view of the Z-section of FIG. 15 taken in the front-rear direction;
fig. 17 is a schematic view of the interference preventing principle of the third embodiment of the electrical connector of the present invention;
FIG. 18 is a partial structural view of the section C-C shown in FIG. 15;
FIG. 19 is an exploded view of a third embodiment of the electrical connector of the present invention;
fig. 20 is a schematic structural view of a signal terminal according to the present invention;
fig. 21 is a schematic structural diagram of the ground terminal of the present invention.
The following description is made with reference to the accompanying drawings:
1-plastic body; 20-signal terminals; 200-a signal terminal body; 201-signal solder leg; 21-a ground terminal; 210-a ground terminal body; 211-ground leg; 212-holding the bumps; 30-a grounding plate; 300-a sliver body; 301-an abutting portion; 31-a spacer; 310 — a first spacer; 311 — a second spacer; 312-spacer block.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical significance. The terms "first" and "second" used in the present specification are for convenience of description and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.
The invention provides an electric connector with a high interference prevention function, which comprises a plastic body 1 and two groups of terminal groups, wherein each terminal group is respectively provided with a plurality of signal terminals 20 and a plurality of grounding terminals 21, and the installation state of the electric connector fixed on a circuit board is taken as a reference (namely the plastic body 1 in the electric connector is vertically fixed on the circuit board), the signal terminals 20 and the grounding terminals 21 are vertically arranged, the signal terminals 20 and the grounding terminals 21 are also combined with the plastic body 1 into a whole in a side-by-side arrangement along the left-right direction according to the design requirement, and meanwhile, the two groups of terminal groups are also arranged in a front-back parallel manner; in addition, a plurality of grounding pieces 30 are arranged on the plastic body 1; particularly, the plurality of grounding pieces 30 are all arranged in the plastic body 1 and are respectively and correspondingly arranged at the front side and the rear side of the bottoms of the two terminal groups; and a plurality of ground terminals 21 in each terminal group still with be located the terminal group front and back both sides ground strip 30 synergism to form a plurality of shielding separate compartments that interval arranged in proper order along left and right direction, simultaneously a plurality of signal terminals 20 in a terminal group respectively corresponding set up in a plurality of shielding separate compartments, a plurality of signal terminals can be shielded the separate compartment and surround and form the electromagnetic shield by shielding, thereby can improve the crosstalk interference problem between the signal terminal effectively, fine improvement the shielding effect of electric connector.
In the description, the multiple ground terminals 21 in each terminal group further cooperate with the ground strips 30 located at the front and rear sides of the terminal group to form multiple shielding compartments arranged at intervals in the left-right direction, the present invention provides multiple embodiments for explanation, and the specific description is as follows:
example 1:
referring to fig. 1 to fig. 6, a schematic perspective view, a schematic partial structure view of a cross section a-a, a schematic anti-interference principle, a schematic exploded structure view, an enlarged structure view of the X-component, and an enlarged structure view of the spacer are respectively shown in the first embodiment of the electrical connector according to the present invention.
In this embodiment, two sets of separating assemblies are provided, the two sets of separating assemblies are in one-to-one correspondence with the two sets of terminal sets, each separating assembly is provided with a plurality of spacers 31 which are of an integrated structure and are made of metal conductive materials respectively, the plurality of spacers 31 are arranged side by side in the left-right direction between the grounding pieces 30 positioned at the front side and the rear side of one terminal set, and the front side and the rear side of the plurality of spacers 31 are in contact with the grounding pieces 30 which are matched with the spacers respectively, and the plurality of spacers 31 are in one-to-one correspondence with and contact with the plurality of grounding terminals 21 respectively; thereby, each two adjacent spacers 31 and the corresponding ground plate 30 and two corresponding ground terminals 21 together form a shielding compartment; meanwhile, a plurality of signal terminals 20 in one terminal group are correspondingly arranged in the plurality of shielding separation cavities which are sequentially arranged at intervals in the left-right direction, that is, the plurality of signal terminals can be surrounded by the shielding separation cavities to form electromagnetic shielding.
In this embodiment, it is preferable that the grounding plates 30 are four (but not limited to four), and each grounding plate is a long plate-shaped structure extending in the left-right direction; dividing four grounding strips 30 into two groups, wherein two grounding strips 30 in one group are respectively arranged beside the front side and the rear side of the bottom of one terminal group and respectively correspondingly contacted with the front side and the rear side of a plurality of spacers 31 in one separation assembly; two grounding plates 30 in another group are respectively arranged beside the front side and the rear side of the bottom of another terminal group and respectively correspondingly contacted with the front side and the rear side of a plurality of spacers 31 in another separation assembly; that is, each two adjacent spacers 31 cooperate with the two ground plates 30 and the two ground terminals 21 to form a shielding compartment.
Preferably, each of the spacers 31 has a first spacer 310 in an L-shaped plate shape, and a second spacer 311 in a straight plate shape integrally connected to a transverse section of the first spacer 310 (i.e., the first and second spacers are of an integral structure), wherein the transverse section and the vertical section of the first spacer 310 respectively contact with a bottom of one of the ground terminals 21 and one of the ground plates 30 (in this case, the ground terminal 21 is in the shielding compartment), and the second spacer 311 contacts the other of the ground plates 30. Supplementary explanation: the first spacer is composed of a transverse section and a vertical section which is vertically connected with the transverse section, and the so-called transverse and vertical do not represent the definition of direction, but are just the definition of relative relationship made for convenience of description.
Further preferably, each of the grounding strips 30 has a strip body 300 extending in the left-right direction, and a plurality of abutting portions 301 are oppositely disposed on two adjacent strip bodies 300 belonging to different groups, as shown in fig. 7; in this way, when assembled, the plurality of abutting portions 301 on one strip body 300 abut on the other strip body 300, and the overall stability of the electrical connector can be enhanced.
Still more preferably, a plurality of the abutting portions 301 on the same strip main body 300 are arranged at intervals in the left-right direction; the abutting portions 301 of the two strip bodies 300 are arranged in a staggered manner.
In addition, the electrical connector provided in embodiment 1 is assembled in the following manner: firstly, arranging two groups of terminal groups, a plurality of grounding pieces 30 and two groups of separating components according to design requirements, and then molding the plastic body 1 on the two groups of terminal groups, the plurality of grounding pieces 30 and the two groups of separating components by using a plastic molding process to manufacture the electric connector.
Example 2:
fig. 8 to 13 are a schematic perspective view, a schematic top view, a schematic cross-sectional view of the Y portion in the front-back direction, a schematic interference prevention principle, a schematic partial structure of the B-B cross section, and a schematic exploded view of a second embodiment of the electrical connector according to the present invention.
In this embodiment, two sets of separating members are provided, each set of separating members is in one-to-one corresponding fit with two sets of terminal sets, each set of separating members is provided with a plurality of separating pieces 31 respectively made of conductive material (metal conductive material or conductive plastic material), each separating piece 31 is provided with two separating piece blocks 312 (namely, a split structure), for convenience of description, two separating piece blocks 312 are respectively defined as a first separating piece block and a second separating piece block, wherein the first separating piece blocks are respectively abutted against the front sides of the bottoms of a plurality of grounding terminals 21 in one terminal set in one-to-one correspondence, and simultaneously the front sides of the first separating piece blocks are respectively contacted with the grounding piece 30 positioned on the front side of one terminal set, and the second separating piece blocks are respectively abutted against the rear sides of the bottoms of a plurality of grounding terminals 21 in one terminal set in one-to-one correspondence, meanwhile, the rear sides of the second spacer blocks are respectively contacted with the grounding plate 30 positioned at the rear side of one terminal group; therefore, every two adjacent spacers 31 and the two ground terminals 21 and the ground blades 30 which are matched with the adjacent spacers jointly enclose a shielding compartment; meanwhile, a plurality of signal terminals 20 in one terminal group are correspondingly arranged in the plurality of shielding separation cavities which are sequentially arranged at intervals in the left-right direction, that is, the plurality of signal terminals can be surrounded by the shielding separation cavities to form electromagnetic shielding.
In this embodiment, it is preferable that the grounding plates 30 are four (but not limited to four), and each grounding plate is a long plate-shaped structure extending in the left-right direction; dividing the four grounding strips 30 into two groups, wherein two grounding strips 30 in one group are respectively arranged beside the front side and the rear side of the bottom of one terminal group and are respectively correspondingly contacted with the front sides of a plurality of first separator blocks and the rear sides of a plurality of second separator blocks in one separation assembly; the two grounding strips 30 in the other group are respectively arranged beside the front side and the rear side of the bottom of the other terminal group and are respectively correspondingly contacted with the front sides of the first spacer blocks and the rear sides of the second spacer blocks in the other partition assembly;
correspondingly, the rear sides of the first spacer blocks in one of the partition assemblies respectively and correspondingly abut against the front sides of the bottoms of the ground terminals 21 in one of the terminal groups, and the front sides of the second spacer blocks in one of the partition assemblies respectively and correspondingly abut against the rear sides of the bottoms of the ground terminals 21 in one of the terminal groups.
Further preferably, each of the grounding strips 30 has a strip body 300 extending in the left-right direction, and a plurality of abutting portions 301 are oppositely disposed on two adjacent strip bodies 300 belonging to different groups, as shown in fig. 7; in this way, when assembled, the plurality of abutting portions 301 on one strip body 300 abut on the other strip body 300, and the overall stability of the electrical connector can be enhanced.
Still more preferably, a plurality of the abutting portions 301 on the same strip main body 300 are arranged at intervals in the left-right direction; the abutting portions 301 of the two strip bodies 300 are arranged in a staggered manner.
In addition, the electrical connector provided in embodiment 2 is assembled in the following manner: firstly, a plastic molding process is utilized to prepare the plastic body 1, and a plurality of mounting hole grooves which are arranged according to design requirements are molded on the plastic body 1; then, the two terminal sets, the four grounding plates 30 and the two separating assemblies are correspondingly inserted into the mounting hole slots according to the assembly sequence, and the electric connector is manufactured.
Example 3:
referring to fig. 14 to 21, a schematic perspective structure, a schematic top view, a schematic cross-sectional structure of the Z portion in the front-back direction, a schematic interference prevention principle, a schematic partial structure of the C-C cross section, and a schematic exploded structure of the third embodiment of the electrical connector according to the present invention are shown; and the structure schematic diagram of the signal terminal and the grounding terminal.
In the present embodiment, each of the signal terminals 20 has an elongated signal terminal body 200 and a signal leg 201 integrally formed on the bottom end of the signal terminal body 200, each of the ground terminals 21 has an elongated ground terminal body 210 and a ground leg 211 integrally formed on the bottom end of the ground terminal body 210, and the width of the bottom of the ground terminal body 210 in the front-rear direction is greater than the width of the bottom of the signal terminal body 200 in the front-rear direction; in addition, the grounding pieces 30 located at the front and rear sides of each terminal group are respectively correspondingly contacted with the front and rear sides of the bottoms of the plurality of grounding terminal main bodies 210 in the terminal group, so that the bottoms of every two adjacent grounding terminal main bodies 210 can jointly enclose a shielding separation cavity with the grounding pieces 30 matched with the bottoms, that is, a plurality of signal terminals can be surrounded by the shielding separation cavity to form electromagnetic shielding.
In this embodiment, preferably, the signal terminal 20 is manufactured by a conventional bending forming process, and the ground terminal 21 is manufactured by a blanking forming process;
the left and right sides of the bottom of each ground terminal main body 210 are both flat surfaces, and the left and right sides of the bottom of each ground terminal main body 210 are also respectively integrally formed with a retaining protrusion 212 protruding from the left and right sides, so that the retaining protrusions 212 can enhance the stability of the connection between the ground terminal 21 and the plastic body 1.
In this embodiment, it is preferable that the grounding plates 30 are four (but not limited to four), and each grounding plate is a long plate-shaped structure extending in the left-right direction; dividing four grounding strips 30 into two groups, wherein two grounding strips 30 in one group are respectively arranged at the front side and the rear side of the bottom of one terminal group and respectively correspondingly contacted with the front side and the rear side of the bottoms of a plurality of grounding terminal main bodies 210 in one terminal group, namely forming a plurality of shielding separation cavities; the two grounding pieces 30 in the other group are respectively arranged at the front and rear sides of the bottom of the other terminal group and respectively correspondingly contact with the front and rear sides of the bottoms of the grounding terminal main bodies 210 in the other terminal group, namely, a plurality of shielding separation cavities are formed.
Further preferably, each of the grounding strips 30 has a strip body 300 extending in the left-right direction, and a plurality of abutting portions 301 are oppositely disposed on two adjacent strip bodies 300 belonging to different groups, as shown in fig. 7; in this way, when assembled, the plurality of abutting portions 301 on one strip body 300 abut on the other strip body 300, and the overall stability of the electrical connector can be enhanced.
Still more preferably, a plurality of the abutting portions 301 on the same strip main body 300 are arranged at intervals in the left-right direction; the abutting portions 301 of the two strip bodies 300 are arranged in a staggered manner.
In addition, the electrical connector provided in embodiment 3 is assembled in the following manner: when the electric connector is assembled, firstly, a plastic molding process is utilized to manufacture the plastic body 1, and a plurality of mounting hole grooves which are arranged according to design requirements are molded on the plastic body 1; then, the two sets of terminal sets and the plurality of grounding plates 30 are correspondingly inserted into the plurality of mounting holes according to the assembly sequence, so as to manufacture the electric connector.
In summary, the plastic body is provided with a plurality of shielding compartments, and the signal terminals are correspondingly disposed in the shielding compartments respectively; therefore, the signal terminals can be surrounded by the shielding separation cavity to form electromagnetic shielding, so that the problem of crosstalk interference between the signal terminals can be effectively solved, the shielding effect of the electric connector is well improved, the integrity, the correctness and the transmission efficiency of signals transmitted by the electric connector are improved, and the high-frequency transmission requirement of high-speed signal terminals can be met.
The above description is only a preferred embodiment of the present invention, but not intended to limit the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as within the protective scope of the present invention.
Claims (10)
1. An electric connector with a high interference prevention function comprises a plastic body (1) and two groups of terminal groups, wherein each terminal group is provided with a plurality of signal terminals (20) and a plurality of grounding terminals (21), the installation state of the electric connector fixed on a circuit board is taken as a reference, the signal terminals (20) and the grounding terminals (21) are vertically arranged, the signal terminals (20) and the grounding terminals (21) are combined with the plastic body (1) into a whole in a side-by-side arrangement along the left-right direction according to design requirements, and meanwhile, the two groups of terminal groups are arranged in a front-back parallel manner; in addition, a plurality of grounding sheets (30) are arranged on the plastic body (1); the method is characterized in that: the plurality of grounding pieces (30) are arranged in the plastic body (1) and are respectively and correspondingly arranged on the front side and the rear side of the bottoms of the two terminal groups; and a plurality of grounding terminals (21) in each terminal group also cooperate with the grounding sheets (30) positioned at the front side and the rear side of the terminal group to form a plurality of shielding partition cavities which are sequentially arranged at intervals along the left-right direction, and a plurality of signal terminals (20) in one terminal group are respectively and correspondingly arranged in the plurality of shielding partition cavities.
2. The electrical connector with high interference prevention function according to claim 1, wherein: the circuit board is provided with two groups of separating assemblies, the two groups of separating assemblies are matched with the two groups of terminal groups in a one-to-one correspondence mode, each separating assembly is provided with a plurality of separating sheets (31) made of conducting materials respectively, the plurality of separating sheets (31) are arranged side by side in the left-right direction and are arranged between the grounding sheets (30) on the front side and the rear side of one terminal group, the front side and the rear side of the plurality of separating sheets (31) are respectively contacted with the grounding sheets (30) matched with the separating sheets, and the plurality of separating sheets (31) are respectively corresponding to and contacted with the plurality of grounding terminals (21) in a one-to-one correspondence mode; thereby, each two adjacent spacers (31) and the corresponding ground strip (30) and two corresponding ground terminals (21) together enclose a shielded compartment.
3. The electrical connector with high interference prevention function according to claim 2, wherein: the number of the grounding plates (30) is four, and the four grounding plates are respectively of a long strip-shaped plate structure extending along the left-right direction; dividing the four grounding pieces (30) into two groups, wherein two grounding pieces (30) in one group are respectively arranged beside the front side and the rear side of the bottom of a terminal group and are respectively correspondingly contacted with the front side and the rear side of a plurality of spacers (31) in a separation assembly; two grounding plates (30) in the other group are respectively arranged beside the front side and the rear side of the bottom of the other terminal group and are respectively correspondingly contacted with the front side and the rear side of a plurality of spacers (31) in the other separation assembly.
4. The electrical connector with high interference prevention function according to claim 3, wherein: each of the spacers (31) has a first spacer (310) in an L-shaped plate shape and a second spacer (311) in a straight plate shape integrally connected to a lateral section of the first spacer (310), wherein the lateral section and the vertical section of the first spacer (310) are respectively in contact with the bottom of one of the ground terminals (21) and one of the ground plates (30), and the second spacer (311) is in contact with the other of the ground plates (30);
when the electric connector is assembled, the two groups of terminal groups, the four grounding pieces (30) and the two groups of separating assemblies are arranged according to design requirements, and then the plastic body (1) is molded on the two groups of terminal groups, the four grounding pieces (30) and the two groups of separating assemblies by using a plastic molding process.
5. The electrical connector with high interference prevention function according to claim 3, wherein: each spacer (31) is provided with two spacer blocks (312), wherein one spacer block (312) is arranged between the front side of the bottom of the corresponding grounding terminal (21) and the grounding sheet (30) positioned in front, the other spacer block (312) is arranged between the rear side of the bottom of the corresponding grounding terminal (21) and the other grounding sheet (30) positioned behind, and simultaneously, each spacer block (312) is also respectively contacted with the corresponding grounding sheet (30) and the corresponding grounding terminal (21);
when the electric connector is assembled, the plastic body (1) is manufactured by a plastic molding process, and a plurality of mounting hole grooves which are arranged according to design requirements are molded on the plastic body (1); then, the two groups of terminal groups, the four grounding plates (30) and the two groups of separating assemblies are correspondingly inserted into the mounting hole grooves.
6. The electrical connector with high interference prevention function according to claim 1, wherein: each signal terminal (20) is provided with a long signal terminal main body (200) and a signal welding foot (201) integrally formed on the bottom end of the signal terminal main body (200), each grounding terminal (21) is provided with a long grounding terminal main body (210) and a grounding welding foot (211) integrally formed on the bottom end of the grounding terminal main body (210), and the width of the bottom of the grounding terminal main body (210) in the front-back direction is larger than that of the bottom of the signal terminal main body (200) in the front-back direction;
in addition, the grounding sheets (30) positioned at the front side and the rear side of each terminal group are correspondingly contacted with the front side and the rear side of the bottoms of a plurality of grounding terminal main bodies (210) in the terminal group respectively, so that the bottoms of every two adjacent grounding terminal main bodies (210) and the grounding sheets (30) matched with the bottoms of every two adjacent grounding terminal main bodies (210) can jointly enclose a shielding separation cavity;
when the electric connector is assembled, the plastic body (1) is manufactured by a plastic molding process, and a plurality of mounting hole grooves which are arranged according to design requirements are molded on the plastic body (1); then, the two groups of terminal groups and the plurality of grounding plates (30) are correspondingly inserted into the plurality of mounting hole grooves.
7. The electrical connector with high interference prevention function according to claim 6, wherein: the left side surface and the right side surface of the bottom of each grounding terminal main body (210) are planes, and the left side surface and the right side surface of the bottom of each grounding terminal main body (210) are respectively and integrally formed with a holding lug (212).
8. The electrical connector with high interference prevention function according to claim 6, wherein: the number of the grounding plates (30) is four, and the four grounding plates are respectively of a long strip-shaped plate structure extending along the left-right direction; dividing the four grounding lugs (30) into two groups, wherein two grounding lugs (30) in one group are respectively arranged at the front side and the rear side of the bottom of one terminal group and are respectively correspondingly contacted with the front side and the rear side of the bottoms of a plurality of grounding terminal main bodies (210) in one terminal group, namely forming a plurality of shielding separation cavities; the two grounding sheets (30) in the other group are respectively arranged at the front side and the rear side of the bottom of the other terminal group and are respectively correspondingly contacted with the front side and the rear side of the bottoms of the grounding terminal main bodies (210) in the other terminal group, namely, a plurality of shielding separation cavities are formed.
9. The electrical connector with high interference prevention function according to claim 3 or 8, wherein: each of the grounding plates (30) is provided with a strip plate main body (300) extending along the left-right direction;
the two adjacent strip main bodies (300) which belong to different groups are also oppositely provided with a plurality of abutting parts (301).
10. The electrical connector with high interference prevention function according to claim 9, wherein: a plurality of the abutting portions (301) on the same strip main body (300) are arranged at intervals in the left-right direction;
and the plurality of abutting parts (301) on the two strip main bodies (300) are distributed in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288861.3A CN111129879A (en) | 2019-12-12 | 2019-12-12 | Electric connector with high interference prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288861.3A CN111129879A (en) | 2019-12-12 | 2019-12-12 | Electric connector with high interference prevention function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111129879A true CN111129879A (en) | 2020-05-08 |
Family
ID=70498866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911288861.3A Pending CN111129879A (en) | 2019-12-12 | 2019-12-12 | Electric connector with high interference prevention function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111129879A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6726492B1 (en) * | 2003-05-30 | 2004-04-27 | Hon Hai Precision Ind. Co., Ltd. | Grounded electrical connector |
| US20050136739A1 (en) * | 2003-12-23 | 2005-06-23 | Milbrand Donald W.Jr. | High speed connector assembly |
| WO2008023006A1 (en) * | 2006-08-22 | 2008-02-28 | Fci | Card connector with reduced fext |
| CN107492729A (en) * | 2016-06-13 | 2017-12-19 | 广濑电机株式会社 | The inspection method of electric connector and electric connector |
| CN207517993U (en) * | 2017-10-18 | 2018-06-19 | 昆山宏致电子有限公司 | Tool independent grounding piece is connected across the connector construction of ground terminal |
| CN208690555U (en) * | 2018-06-05 | 2019-04-02 | 深圳市得润电子股份有限公司 | High frequency connectors |
-
2019
- 2019-12-12 CN CN201911288861.3A patent/CN111129879A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6726492B1 (en) * | 2003-05-30 | 2004-04-27 | Hon Hai Precision Ind. Co., Ltd. | Grounded electrical connector |
| US20050136739A1 (en) * | 2003-12-23 | 2005-06-23 | Milbrand Donald W.Jr. | High speed connector assembly |
| WO2008023006A1 (en) * | 2006-08-22 | 2008-02-28 | Fci | Card connector with reduced fext |
| CN107492729A (en) * | 2016-06-13 | 2017-12-19 | 广濑电机株式会社 | The inspection method of electric connector and electric connector |
| CN207517993U (en) * | 2017-10-18 | 2018-06-19 | 昆山宏致电子有限公司 | Tool independent grounding piece is connected across the connector construction of ground terminal |
| CN208690555U (en) * | 2018-06-05 | 2019-04-02 | 深圳市得润电子股份有限公司 | High frequency connectors |
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Application publication date: 20200508 |