CN112952417A - Connector for high-speed transmission - Google Patents

Connector for high-speed transmission Download PDF

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Publication number
CN112952417A
CN112952417A CN201911264975.4A CN201911264975A CN112952417A CN 112952417 A CN112952417 A CN 112952417A CN 201911264975 A CN201911264975 A CN 201911264975A CN 112952417 A CN112952417 A CN 112952417A
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CN
China
Prior art keywords
connector
terminal
contact
terminals
partition wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911264975.4A
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Chinese (zh)
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CN112952417B (en
Inventor
伊东利育
高居阳介
圆城寺太一
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Yamaichi Electronics Co Ltd
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Yamaichi Electronics Co Ltd
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Filing date
Publication date
Application filed by Yamaichi Electronics Co Ltd filed Critical Yamaichi Electronics Co Ltd
Priority to CN201911264975.4A priority Critical patent/CN112952417B/en
Priority to US17/116,245 priority patent/US11626678B2/en
Priority to EP20213129.8A priority patent/EP3836314B1/en
Publication of CN112952417A publication Critical patent/CN112952417A/en
Application granted granted Critical
Publication of CN112952417B publication Critical patent/CN112952417B/en
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Anticipated expiration legal-status Critical

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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
    • H01R13/6471—Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
    • 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
    • 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
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
    • 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
    • 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
    • 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
    • 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
    • H01R13/6473—Impedance matching
    • H01R13/6477—Impedance matching by variation of dielectric properties
    • 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  
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/06—Riveted connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • 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

Abstract

The invention provides a high-speed transmission connector capable of reducing crosstalk. A main Connector (CNH) is provided with: a housing (1H) having a plurality of slots (10H); and a plurality of contacts (3H) including signal contacts (3H) and ground contacts (3H) and arranged in the slot (10H) along a Y direction which is a 1 st direction orthogonal to the fitting direction of the connector. Therefore, a partition wall (15H) is provided between adjacent contacts (3H) in the slot (10H), and the height of the partition wall (15H) between the signal contact (3H) and the grounding contact (3H) in the fitting direction is lower than the height of the partition wall (15H) in the fitting direction.

Description

Connector for high-speed transmission
Technical Field
The present invention relates to a high-speed transmission connector mounted on a circuit board.
Background
Many high-speed transmission connectors mounted on circuit boards are configured by arranging a plurality of terminal rows including signal terminals and ground terminals in a housing. As a document disclosing a technique related to such a connector, there is patent document 1. The connector disclosed in patent document 1 has a structure in which a housing bottom wall has signal terminal receiving grooves as openings penetrating the housing bottom wall between the upper and lower sides thereof, ground terminals and signal terminals are alternately inserted in parallel into the signal terminal receiving grooves, lower end tails of the signal terminals are soldered to a mounting surface of a circuit board by solder balls, and terminals of a mating connector are held by elastic contact portions of the tails.
Patent document 1: japanese patent laid-open publication No. 2018-156936
Disclosure of Invention
However, in order to increase the signal transmission speed, it is necessary to reduce crosstalk between adjacent terminals. However, the conventional connector has a problem that the paired signal terminals and ground terminals are completely separated by partition walls made of resin, and it is difficult to reduce crosstalk.
The present invention has been made in view of the above problems, and an object thereof is to provide a high-speed transmission connector capable of reducing crosstalk.
In order to solve the above problem, a high-speed transmission connector according to a preferred embodiment of the present invention includes: a housing having one or more slots; and a plurality of terminals including a ground terminal and a signal terminal, the terminals being arranged in the insertion groove along a 1 st direction orthogonal to a connector fitting direction, a partition wall being provided between adjacent terminals in the insertion groove, a height of the partition wall between the ground terminal and the signal terminal in the fitting direction being lower than a height of the partition wall in the fitting direction.
In this aspect, the upper end of the partition between the ground terminals and the partition between the signal terminals may be located at substantially the same position as the upper surface of the housing, and the upper end of the partition between the ground terminals and the signal terminals may be located below the upper surface of the housing.
Further, the terminal may include: a linear portion extending along the fitting direction; and a bent portion bent from a distal end of the straight portion to a side of a 2 nd direction orthogonal to the fitting direction and the 1 st direction, wherein the bent portion of the ground terminal and the bent portion of the signal terminal are not separated by the partition wall, and an air layer is formed between the bent portions.
Further, the terminal may include: a linear portion extending along the fitting direction; and a bent portion bent from a tip of the linear portion to a side of a 2 nd direction orthogonal to the fitting direction and the 1 st direction, wherein the linear portion of the ground terminal and the linear portion of the signal terminal are separated by the partition wall.
In addition, a plurality of ribs may be arranged on the inner wall surfaces facing each other in the insertion groove at intervals along the 1 st direction, and the plurality of terminals may be individually accommodated in the gap between the adjacent ribs in the insertion groove in an arrangement order in which 2 terminals for grounding and 2 terminals for signal are set as one set and the 2 terminals for signal are sandwiched between the 2 terminals for grounding.
The terminal may have a fork portion, and a caulking solder may be interposed between the fork portion, and the solder of the terminal may be supported by an upper end of the rib portion.
The terminal may have a contact portion to be brought into contact with a mating connector, and a front side portion of the contact portion of the partition wall between the ground terminal and the signal terminal may be partially cut.
The insertion groove may have a support body for supporting a shield plate as another terminal, and the partition wall may be provided between the rib and the support body.
In addition, a long hole may be formed in the support body, and the shield plate may be press-fitted into the long hole.
The present invention is provided with: a housing having one or more slots; and a plurality of terminals including a ground terminal and a signal terminal, the terminals being arranged in the insertion groove along a 1 st direction orthogonal to a fitting direction of the connector, a partition wall being provided between adjacent terminals in the insertion groove, a height of the partition wall between the ground terminal and the signal terminal in the fitting direction being lower than a height of the partition wall in the fitting direction. Therefore, an air layer, which is a space layer having a smaller dielectric constant than the partition wall made of resin, is formed between the ground terminal and the signal terminal. Therefore, a high-speed transmission connector capable of reducing crosstalk between adjacent channels can be provided.
Drawings
Fig. 1 (a) and (B) are perspective views of the main connector CNH as one embodiment of the present invention viewed from 2 directions, and (C) and (D) are perspective views of the plug connector CNP as one embodiment of the present invention viewed from two directions.
Fig. 2 is a view showing a cut parallel to the XZ plane between the contacts 3H-3(S) and the contacts 3H-4(S) when the main connector CNH and the plug connector CNP in fig. 1 are fitted.
Fig. 3 is a perspective view illustrating the main connector CNH of fig. 1 (B) in an exploded manner.
Fig. 4 (a) is a perspective view of a cutout section including the Y-direction center passing through the contacts 3H-15(S) in the main connector CNH of fig. 1 (B), and (B) is a partial enlarged view thereof.
Fig. 5 is a perspective view of the housing 1H of fig. 3.
Fig. 6 (a) is a front view of the housing 1H of fig. 3 and a side view thereof as viewed from four directions, and (B) is a partial enlarged view of the front view.
Fig. 7 (a) is a rear view of the housing 1H in fig. 3, and (B) is an enlarged view of a part of the rear view.
Fig. 8 (a) is a perspective view of the central conductive resin 2HA in fig. 3, and (B) is a perspective view of the conductive resins 2HB on both sides thereof.
Fig. 9 is a perspective view of the contact 3H-j of fig. 3.
FIG. 10 is a view showing a process for machining the contact 3H-j shown in FIG. 3.
Fig. 11 is a perspective view of the shield plate 5H-m of fig. 3.
Fig. 12 is a perspective view illustrating the plug connector CNP of fig. 1(D) in an exploded manner.
Fig. 13 is a perspective view of the housing 1P of fig. 12.
Fig. 14 (a) is a front view of the housing 1P of fig. 13 and a side view thereof as viewed from four directions, and (B) is a partial enlarged view of the front view.
Fig. 15 (a) is a rear view of the housing 1P in fig. 13, and (B) is a partially enlarged rear view.
Fig. 16 (a) is a perspective view of the conductive resin 2PA of fig. 1(C), and (B) is a perspective view of the conductive resin 2PB on both sides thereof.
Fig. 17 is a perspective view of the contact 3P-j of fig. 12.
Fig. 18 is a perspective view of the shield contact 4P-m of fig. 12.
Fig. 19 is a perspective view of the shield plate 5P-m of fig. 12.
Fig. 20 is a perspective view including a cut-out section passing through the Y-direction center of the contact 3P-15 in fig. 1 (D).
Fig. 21 is a sectional view of a fitting portion of the shield plate 5P-4 and the shield contact 4P-4 in fig. 1 (D).
Fig. 22 is a diagram showing shield contacts 4PA-m and 4PB-m of plug connector CNP according to another embodiment of the present invention.
[ description of reference ]
1H shell; 1P shell; 2HA conductive resin; 2P conductive resin; a 3H contact; a 3P contact; a 4H shield plate; a 4P shield contact; 4PA shield contacts; a 4PB shield contact; a 5H shield plate; a 5P shield plate; a 10H slot; a 10P head; 11H bottom 11H; 11P side walls; 12H a table portion 12H; 12P bottom wall; a 13H reinforcing plate; 14H rib portion; 14P rib portion; 15H partition walls; a 16H plate support; a 16P slot; 17H long hole; a 17P long hole; an 18H open part; an 18P long hole; a 19H groove; 21HA 22HB sidewall; a 21PA 21PB long plate; 22PA 22PB connecting piece; 23HA 23HB protuberance; 23PA 23PB partition sheet; a 24HA 24HB expansion; a 27P long hole; a 30H fork part; a 30P fork portion; 31H, a 1 st straight line part; 32H, 2 nd straight line part; 33H, bend 1; a 33P bend; 34H, bend 2; a 35H inclined part; a 37H contact portion; a 37P contact portion; a 39aH lobe; a 39aP projection; a 39bH lobe; a 39bP projection; a 39cH lobe; 41P body portion; a 42aP projection; a 42bP projection; a 47aP contact portion; a 47bP contact; a 47cP contact; a 47dP contact; a 49aP projection; a 49bP projection; a 50aH fork; a 50aP fork; a 50bH fork; a 50bP fork; a 50cH fork; a 50cP fork; a 50dH fork; a 50dP fork; 51H body part; a 51P body portion; a 52aP projection; a 52bP projection; a 52cP lobe; a 52dP projection; a 56aP recess; a 57aH contact; a 57bH contact portion; a 57c H contact; a 59aH projection; a 59aP projection; a 59bH projection; a 59bP projection; a 59cP projection; 90 an electronic substrate; 91 expanding the substrate; a 110H cut-out portion; 111H 112H recess; a 147aP contact portion; a 147bP contact portion; 177P locking pieces; 300 pieces.
Detailed Description
Hereinafter, a main connector CNH and a plug connector CNP, which are high-speed transmission connectors according to an embodiment of the present invention, will be described with reference to the drawings. The main connector CNH and the plug connector CNP are used by applying solder to pads of the electronic substrate 90 and the expansion substrate 91. When the main connector CNH and the plug connector CNP are fitted close to the thick arrow direction of fig. 1, the terminals of the main connector CNH and the terminals of the plug connector CNP are electrically connected, and high-speed transmission of up to 3.2Tbps between the electronic substrate 90 and the expansion substrate 91 can be performed, mounting the main connector CNH to the electronic substrate 90, and mounting the plug connector CNP on the expansion substrate 91.
In the following description, the fitting direction of the main connector CNH and the plug connector CNP is referred to as a Z direction, one direction orthogonal to the Z direction is referred to as an X direction, and a direction orthogonal to both the Z direction and the X direction is referred to as a Y direction. The side where the main connector CNH is present is referred to as an upper side when viewed from the Z-direction plug connector CNP, and the side where the plug connector CNP is present is referred to as a lower side when viewed from the main connector CNH.
As shown in fig. 3, the main connector CNH includes three slots 10H arranged in the X direction in the housing 1H, and the three slots 10H are respectively provided with conductive resin 2HA and 2HB, 2 rows of 28 contacts 3H-j (j is 1 to 28), and four shield plates 5H-m (m is 1 to 7). The contacts 3H to j (j 1 to 28) mounted in the slots 10H are all the same in shape. The shapes of the shield plates 5H to m (m is 1 to 7) attached to the slots 10H are all the same.
As shown in fig. 5 and 6, the three slots 10H of the housing 1H penetrate three table portions 12H rising from the bottom portion 11H of the housing 1H in the vertical direction. As shown in fig. 6 (a), a plurality of reinforcing plates 13H are provided between the adjacent table portions 12H. Three recesses 111H are formed outside the terrace portion 12H on the + X side of the bottom portion 11H of the housing 1H. On the outer side of the terrace portion 12H on the-X side of the bottom portion 11H of the housing 1H, 2 depressions 112H are formed.
As shown in fig. 7 (a) and 7 (B), grooves 19H are provided around the three slots 10H on the upper surface of the housing 1H. The groove 19H has a horizontally long rectangular frame shape in the Y direction. The groove 19H is open outward as an open portion 18H on both sides in the Y direction.
The conductive resin 2HA shown in fig. 8 (a) is fitted into the peripheral groove 19H of the center socket 10H. The conductive resin 2HA HAs a rectangular frame shape having a size of being accommodated in the groove 19H. A plurality of protrusions 23HA are formed on the inner wall surface of the side wall 21HA opposed to the conductive resin 2HA in the X direction. The sidewalls 22HA opposed to each other in the Y direction of the conductive resin 2HA are formed with expansion portions 24HA protruding outward in the Y direction. In a state where the conductive resin 2HA is accommodated in the peripheral groove 19H of the center slot 10H, the expanded portion 24HA is fitted into the open portion 18H of the groove 19H. The upper surface of the conductive resin 2HA is flush with the upper surface of the case 1H.
The conductive resin 2HB shown in fig. 8 (B) is fitted into the peripheral groove 19H of the slot 10H on both sides in the X direction. The conductive resin 2HB has a rectangular frame shape having a size to be accommodated in the groove 19H. In the conductive resin 2HB, a plurality of protrusions 23HB are formed on the inner wall surfaces of the side walls 21HB facing in the X direction. In the conductive resin 2HB, on the side walls 22HB facing in the Y direction, expansion portions 24HB are formed to protrude outward in the Y direction. The expanded portion 24HB is fitted into the open portion 18H of the peripheral groove 19H of the slot 10H at both sides in the X direction in the center in a state where the conductive resin 2HB is accommodated in the peripheral groove 19H. The upper surface of conductive resin 2HB is flush with the upper surface of case 1H.
As shown in fig. 4 a, 6B, and 7B, 27 ribs 14H-k (k 1 to 27) are provided on inner wall surfaces of the table portion 12H of the housing 1H facing each other in the X direction with the slot 10H interposed therebetween. The ribs 14H-k slightly protrude inward from the inner wall surface. The ribs 14H-k (k 1-27) are arranged in parallel with the same interval in the Y direction. The interval between adjacent ribs 14H-k among the ribs 14H-k (k 1 to 27) is substantially the same as the width of the contact 3H-j in the Y direction.
On the upper side (+ Z side) of the insertion groove 10H in the table portion 12H of the housing 1H, there is a board support 16H extending in the Y direction. Partition walls 15H-k (k 1 to 27) are provided between the rib portions 14H-k (k 1 to 27) of the slot 10H and the board support 16H. As shown in fig. 4 (a), 6 (B), and 7 (B), the partition wall 15H-k rises from the inner end surface of the rib 14H-k toward the board support 16H. The plate support 16H is supported by the inner end of the partition wall 15H-k opposite to the rib 14H-k. The plate support 16H is provided with 7 elongated holes 17H-m (m is 1 to 7) penetrating the plate support 16H in the vertical direction.
As shown in FIG. 9, the contact 3H-j has: a 1 st linear portion 31H extending in the Z direction; a 2 nd linear part 32H spaced apart from the 1 st linear part 31H toward the-X side and extending in parallel with the 1 st linear part 31H; a fork portion 30H extending from one end of the 1 st straight portion 31H while being bifurcated; a 1 st bent portion 33H bent from an opposite side end portion of the 1 st linear portion 31H on the side of the fork portion 30H toward the 2 nd linear portion 32H in the X direction and continuous with one end of the 2 nd linear portion 32H; a 2 nd bent portion 34H bent from the other end of the 2 nd straight portion 32H toward the opposite side of the 1 st straight portion 31H in the X direction; an inclined portion 35H extending slightly obliquely from the end of the 2 nd bent portion 34H on the side away from the 2 nd straight portion 32H; and a contact portion 37H extending from the tip of the inclined portion 35H in a bent manner in a hook shape.
On the side surface of the 1 st straight portion 31H, convex portions 39aH, 39bH, 39cH are formed to protrude outward in the Y direction. The contact portion 37H extends further obliquely from the base end connected to the inclined portion 35H to the side opposite to the 2 nd straight portion 32H, and then bends and extends in the shape of "く". The tip of the contact portion 37H faces the 1 st bent portion 33H. The Y-direction width of the contact portion 37H is narrowed at the base end of the contact portion 37H. The width of the contact portion 37H in the Y direction at the tip is substantially half the width of the contact portion 37H in the Y direction at the base end.
The fork 30H of the contact 3H-j is a terminal portion with solder to which solder is applied to a pad of the electronic substrate 90 to be mounted. A solder is sandwiched and caulked between fork portions 30H of contacts 3H-j. The fork 30H is fixed by soldering in the following order. First, as shown in fig. 10 (a), a cut piece 300 is prepared in which wire solder is cut to a length longer than the width of the fork 30H in the X direction. Next, as shown in fig. 10 (B), the cut piece 300 of wire solder is press-fitted between the fork portions 30H. Here, the solder may be cut and the fork 30H may be press-fitted into the plurality of contacts 3H-j collectively. In this case, the fork portions 30H of the plurality of contacts 3H-j continuously connected by press forming may be cut into an appropriate length after one long wire solder is passed. After the wire solder cut piece 300 is pressed into between the fork portions 30H, both ends of the wire solder cut piece 300 are sandwiched by a tool and pressed against the fork portions 30H.
As shown in fig. 10 (C), the solder fixed in this order spreads on the outer surface of the fork 30H, a part of the outer surface of the clamping surface of the fork 30H is covered with the solder, and the fork 30H and the solder are integrated.
Here, in the contact 3H-j (j is 1 to 28) of each slot 10H, there are contacts 3H-j that function as ground terminals and contacts 3H-j that function as signal terminals. Hereinafter, the ground contacts 3H-j are denoted by letters (G) and the signal contacts 3H-j are denoted by letters (S), as appropriate, to distinguish them from each other.
As shown in fig. 4B, the elongated holes 17H-m (m is 1 to 7) in each slot 10H have 2 rows of contacts 3H-j (j is 1 to 28) on the + X side and the-X side, so that the 2 contacts for grounding and the 2 contacts for signal are alternately arranged in parallel, and are individually accommodated in the gap between the adjacent partition walls 15H-k in the slot 10H. For example, on the + X side of the elongated hole 17H-1 shown in FIG. 6B and FIG. 7B, the contact 3H-1(G) for grounding is housed in the gap between the inner wall of the terrace portion 12H on the + Y side and the partition wall 15H-1, and the contact 3H-2(G) for grounding is housed in the gap between the partition wall 15H-1 and the partition wall 15H-2. The signal contact 3H-3(S) is housed in the gap between the partition wall 15H-2 and the partition wall 15H-3, and the signal contact 3H-4(S) is housed in the gap between the partition wall 15H-3 and the partition wall 15H-4. The same applies to the X side of the long hole 17H-1.
The solder fixed to the fork portion 30H of the contact 3H-j faces upward, and the contact portion 37H of the contact 3H-j faces downward. The solder of the contact 3H-j is supported by the upper end of the rib 14H-k, and the solder is exposed to the upper side of the upper surface of the housing 1H.
In the partition walls 15H-k (k is 1 to 28) in the slot 10H, the height in the Z direction of the partition walls 15H-k between the grounding contacts 3H-j (g) and the signal contacts 3H-j(s) is lower than the height in the Z direction of the partition walls 15H-k between the grounding contacts 3H-j (g) as the other partition walls 15H-k and the height in the Z direction of the partition walls 15H-k between the signal contacts 3H-j(s).
To explain in more detail, as shown in fig. 2, the partition walls 15H-k (the partition walls 15H-1 that are deeper in the Y direction in the cross section of fig. 2) between the grounding contacts 3H-j (g) have lower ends located at substantially the same positions as the lower surface of the housing 1H and upper ends located at substantially the same positions as the upper surface of the housing 1H. The same applies to the partition wall 15H-k between the signal contacts 3H-j (S).
On the other hand, the lower end of the partition wall 15H-k (the partition wall 15H-2 immediately before the Y direction in the cross section of fig. 2) between the ground contact 3H-j (g) and the signal contact 3H-j(s) is located substantially at the same position as the lower surface of the housing 1H, but the upper end thereof is located in the vicinity of the boundary between the 1 st linear portion 31H and the 2 nd bent portion 34H of the contact 3H-j below the upper surface of the housing 1H. The upper end of the partition wall 15H-k between the ground contact 3H-j (g) and the signal contact 3H-j(s) is formed into an inclined surface shape that gradually becomes lower as it goes away from the center plate support 16H.
The substantially rectangular portion of the front surface of the contact portion 37H of the contact 3H-j of the partition wall 15H-k between the ground contact 3H-j (g) and the signal contact 3H-j(s) is notched as a notch 110H.
Therefore, the 1 st and 2 nd linear portions 31H and 32H of the ground contact 3H-j (g) and the 1 st and 2 nd linear portions 31H and 32H of the signal contact 3H-j(s) are separated by the partition wall 15H-k, but the 1 st and 2 nd bent portions 33H and 34H and the contact portions 37H of the ground contact 3H-j (g) and the 1 st and 2 nd bent portions 33H and 34H and 37H of the signal contact 3H-j (g) are not separated by the partition wall 15H-k. An air layer is formed between the 1 st bent portion 33H, the 2 nd bent portion 34H, and the contact portion 37H of the ground contact 3H-j (G) and the 1 st bent portion 33H, the 2 nd bent portion 34H, and the contact portion 37H of the signal contact 3H-j (S).
As shown in fig. 11, the shield plate 5H-m has: a body portion 51H; fork parts 50aH, 50bH, 50cH, 50dH, and 4 parts separated in the Y direction at the upper end of the main body part 51H extend in two strands; and contact portions 57aH, 57bH, and 57cH protruding from the portions sandwiching the 2 grooves at the lower end of the body portion 51H. On the side surface of the main body 51H, projections 59aH, 59bH are formed so as to project outward in the Y direction.
The fork portions 50aH, 50bH, 50cH, and 50dH of the contacts 3H to j are soldered terminal portions to which solder is applied to the pads of the electronic board 90 to be mounted. Caulking solder is sandwiched between the fork portions 50aH, 50bH, 50cH, and 50dH of the shield plate 5H-m. The solder pair prongs 50aH, 50bH, 50cH, and 50dH are fixed in the same order as the solder pair prongs 30H of the contacts 3H-j.
The shield plates 5H-m are press-fitted into the slots 17H-m of the plate support 16H in the slots 10H from the upper side. The solder fixed to the fork portions 50aH, 50bH, 50cH, 50dH of the shield plates 5H-m is exposed to the upper side of the upper surface of the housing 1H.
As shown in fig. 12, the plug connector CNP includes three header portions 10P corresponding to the slots 10H of the main connector CNH in the housing 1P, and the three header portions 10P are each formed by mounting conductive resin 2PA and 2PB, 2 rows of 28 contacts 3P-j (j is 1 to 28), one row of 7 shield contacts 4P-m (m is 1 to 7), and one row of 7 shield plates 5P-m (m is 1 to 7). The contacts 3P-j (j 1 to 28) attached to the respective heads 10P are all identical in shape. The shapes of the shield contacts 4P-m (m is 1 to 7) attached to the header portions 10P are all the same, and the shapes of the shield plates 5P-m (m is 1 to 7) are also all the same.
As shown in fig. 20, 27 ribs 14P-k (k 1 to 27) are provided on the outer wall surface of the head 10PX direction. The rib portions 14P-k are thin rectangular in shape. The ribs 14P-k are arranged at the same interval in the Y direction. The interval between adjacent ribs 14P-k of the ribs 14P-k (k 1 to 27) is substantially the same as the width of the contact 3P-j in the Y direction.
A groove 16P is provided in the bottom wall 12P of the housing 1P at a position opposite to the head portion 10P. The upper end of the head portion 10P is located slightly lower than the upper edges of the side walls 11P on both sides of the housing 1P in the X direction. The lower end of the head portion 10P protrudes downward from the bottom surface of the groove 16P.
As shown in fig. 14 a and 14B, the head portion 10P is provided with 7 elongated holes 17P-m (m is 1 to 7) vertically penetrating the head portion 10P. The lower portion of the elongated hole 17P-m has a smaller width in the X direction than the upper portion thereof. As shown in fig. 14 a, 14B and 20, 28 long holes 18P-j (j 1 to 28) are formed in the bottom wall 12P at positions directly below the positions between the adjacent ribs 14P-k on both sides in the X direction of the base end of the head portion 10P. The elongated hole 18P-j (j 1-28) penetrates between the upper surface of the bottom wall 12P and the bottom surface of the groove 16P on the back surface thereof.
At the lower end of the center head 10P of the groove 16P, a conductive resin 2PA shown in fig. 16 (a) is embedded. The conductive resin 2PA is formed by opposing the 2 long plates 21PA with a slight gap therebetween, and connecting both ends of the 2 long plates 21PA in the Y direction via connecting pieces 22 PA. In the gaps between the 2 long plates 21PA, 7 long holes 27P-m (m is 1 to 7) partitioned by the partition pieces 23PA are formed. In a state where conductive resin 2PA is fitted into the lower end of center header 10P, the lower surface of conductive resin 2PA is flush with the lower surface of 1P.
Conductive resin 2PB shown in fig. 16 (B) is fitted into the lower ends of head portions 10P on both sides in the X direction in groove 16P. The conductive resin 2PB is formed by opposing the 2 long plates 21PB with a slight gap therebetween, and connecting both ends of the 2 long plates 21PB in the Y direction via the connecting pieces 22 PB. In the gap between the 2 long plates 21PB, 7 long holes 27P-m (m is 1 to 7) partitioned by the partition piece 23PB are formed. In a state where conductive resin 2PB is fitted into the lower end of central head portion 10P, the lower surface of conductive resin 2PB and the lower surface of 1P are flush with each other.
As shown in fig. 17, the contact 3P-j includes a contact portion 37P linearly extending in the Z direction, a bent portion 33P extending from a base end of the contact portion 37P to one side in the X direction in a bent manner, and a fork portion 30P extending from an end portion of the bent portion 33P opposite to the contact portion 37P in two. On the side surface of the contact portion 37P, convex portions 39aP and 39bP are formed so as to protrude outward in the Y direction. A hole 38 is formed in the middle of the bent portion 33P in the Y direction.
The fork 30P of the contact 3P-j is a terminal portion with solder to which solder is applied to a pad of the mounting-target expanded board 91. A solder is sandwiched and caulked between the fork portions 30P of the contacts 3P-j. The solder is fixed to the fork 30P in the same order as the fork 30P of the contact 3P-j.
As shown in fig. 2 and 20, the solder-fixed contacts 3P-j are accommodated one by one in the gaps between the adjacent ribs 14P-k of the head portion 10P from the lower side through the elongated holes 18P-j of the head portion 10P. The bent portion 33P of the contact 3P-j is supported by the edge portion of the elongated hole 18P-j of the bottom wall 12P of the housing 1P and is exposed to the lower side of the lower surface of the solder housing 1P of the contact 3P-j.
As shown in fig. 18, the shield contact 4P-m has: a body portion 41P; contact portions 47aP, 47bP, 47cP, 47dP bent and extended in a shape of "く" at 4 locations separated from the lower end of the main body portion 41P in the Y direction; and convex portions 42aP and 42bP protruding from 2 positions on the upper end of the main body portion 41P, the opposite side between the contact portion 47aP and the contact portion 47bP, and the opposite side between the contact portion 47cP and the contact portion 47 dP. On the side surface of the main body 41P, projections 49aP and 49bP projecting outward in the Y direction are formed.
Of the contact portions 47aP, 47bP, 47cP, and 47dP, the 2 contact portions 47aP and 47dP on the outer side in the Y direction and the 2 contact portions 47bP and 47cP on the inner side in the contact portion arrangement direction are bent in opposite directions. The upper ends of the outer 2 contact portions 47aP and 47dP and the upper ends of the inner 2 contact portions 47bP and 47cP are inclined in directions away from each other, and open in the shape of "ハ" when viewed from the Y direction. The lower ends of the convex portions 42aP, 42bP are rounded.
As shown in fig. 19, the shield plate 5P-m has: a body portion 51P; projections 52aP, 52bP, 25cP, 52dP projecting from 4 locations separated in the Y direction at the lower end of the main body portion 51P; and fork portions 50aP, 50bP, 50cP, and 50dP extending in two strands from 4 locations separated in the Y direction at the lower end of the main body portion 51P. On the side surfaces of the main body 51P and the projections 52aP and 52dP, projections 59aP, 59bP, and 59cP projecting outward in the Y direction are formed. Recesses 56aP and 56bP are formed between the convex portion 52aP and the convex portion 52bP, and between the convex portion 52cP and the convex portion 52dP, respectively, at the upper end of the body portion 51P.
The fork portions 50aP, 50bP, 50cP, and 50dP of the shield plate 5P-m are soldered terminal portions with solder applied to the pads of the extended substrate 91 to be mounted. The fork portions 50aP, 50bP, 50cP, and 50dP of the shield plate 5P-m are caulked with solder interposed therebetween. The solder fixing order of the fork portions 50aP, 50bP, 50cP, and 50dP is the same as the solder fixing order of the fork portions 30P of the contacts 3P-j.
As shown in fig. 2 and 20, the shield contact 4P-m is press-fitted into the elongated hole 17P-m of the head portion 10P from the upper side, and the solder-fixed shield plate 5P-m is press-fitted into the elongated hole 17P-m of the head portion 10P from the lower side through the elongated hole 27P-m of the conductive resin 2PA (or 2 PB). The end of the shield contact 4P-m abuts the end of the shield plate 5P-m within the elongated hole 17P-m. To explain in more detail, as shown in fig. 21, rectangular locking pieces 177P-m are provided between inner wall surfaces of the elongated hole 17P-m of the head 10P facing in the X direction, and the shield contact 4P-m and the shield plate 5P-m are positioned by the locking pieces 177P-m.
Locking piece 177P-m is fitted into the recess between convex portion 52bP and convex portion 52cP of shield plate 5P-m. The convex portion 42aP of the shield contact 4P-m is fitted into the concave portion between the convex portion 52aP and the convex portion 52bP of the shield plate 5P-m, and the convex portion 42bP of the shield contact 4P-m is fitted into the concave portion between the convex portion 52cP and the convex portion 52dP of the shield plate 5P-m. Further, a notch is provided in an inner wall surface of the head portion 10P facing the elongated hole 17P-m in the Y direction. The projections 49aP and 49bP of the shield contact 4P-m and the projections 59aP, 59bP, and 59cP of the shield plate 5P-m are engaged with the notches, thereby preventing the shield contact 4P-m and the shield plate 5P-m from coming off. The elongated holes 17H-m of the slot 10H of the main connector CNH also have cutouts that serve the same purpose.
In a state where the plug connector CNP is fitted to the main connector CNH as a mating connector, the contact portions 47aP, 47bP, 47cP, 47dP of the shield contacts 4P-m of the plug connector CNP are brought into contact with the contact portions 57aH, 57bH, 57cH of the shield plate 5H-m of the main connector CNH, and the contact portions 37P of the contacts 3P-j of the plug connector CNP are brought into contact with the contact portions 37H of the contacts 3H-j of the main connector CNH.
The above is the structural details of the present embodiment, and according to the present embodiment, the following effects can be obtained. The plug connector CNP of the present embodiment includes: a housing 1P having an elongated hole 17P-m extending in one direction; and a plurality of terminals arranged in the elongated holes 17P-m and having contact portions 37P, 47aP, 47bP, 47cP, 47dP for contacting the mating connector and soldered terminal portions for applying solder to the mounting target substrate, respectively. Thus, the terminals sandwiched between the shield plate 5H-m of the main connector CNH and the pads of the expansion board 91 among these terminals are separated by the shield contact 4P-m as a member having the contact portions 47aP, 47bP, 47cP, 47dP and the shield plate 5P-m as a member having the terminal portion with solder, the end portion of the shield contact 4P-m opposite to the side of the contact portions 47aP, 47bP, 47cP, 47dP and the end portion of the shield plate 5P-m opposite to the side of the terminal portion with solder are press-fitted into the elongated hole 17P-m from opposite directions, and both end portions abut inside the elongated hole 17P-m. Therefore, by dividing the contact portions 37P, 47aP, 47bP, 47cP, 47dP and the soldered terminal portion of the shield contact 4P-m, the opening of the elongated hole 17P-m of the housing 1P can be minimized, and the rigidity of the housing 1P can be ensured. Further, by press-fitting the respective members into each other, performance equivalent to one structure can be ensured. Therefore, it is possible to provide a high-speed transmission connector in which the width of the opening of the housing 1P is reduced and the rigidity of the housing is ensured.
The main connector CNH of the present embodiment includes: a housing 1H having a plurality of slots 10H; the plurality of contacts 3H-j, which include contacts 3H-j (G) as ground terminals and contacts 3H-j (S) as signal terminals, are arranged in the slot 10H along a Y direction, which is a 1 st direction orthogonal to the fitting direction of the connector. Therefore, a partition wall 15H-k is provided between the adjacent contacts 3H-j in the slot 10H, and the height of the partition wall 15H-k in the fitting direction between the grounding contact 3H-j (G) and the signal contact 3H-j (S) is lower than the height of the partition wall 15H-k in the fitting direction other than the above. Therefore, a space layer having a dielectric constant smaller than that of the partition wall 15H-k made of resin, that is, an air layer is formed between the signal contact 3H-j (S) and the grounding contact 3H-j (G). Therefore, a high-speed transmission connector capable of reducing crosstalk between adjacent channels can be provided.
The main connector CNH of the present embodiment includes: a housing 1H; and a plurality of contacts 3H-j having contact portions 37H to be brought into contact with the mating connector and soldered terminal portions to be soldered on a substrate to be mounted, the contact portions 37H and the soldered terminal portions being arranged in the housing 1H so as to face opposite sides. Thus, the solder-attached terminal portion is the fork portion 30H, and the cut piece 300 of wire solder is caulked with the fork portion 30H. This can reduce the terminal heating step of the reflow layer required in the conventional solder ball type solder applying method, and can also reduce the influence of the heat treatment. Therefore, it is possible to provide a connector capable of reducing the overheating process of the terminal during reflow and reducing the adverse effect on the finished product due to the heat treatment.
Although the embodiment of the present invention has been described above, the following modifications may be made to the embodiment. (1) In the above embodiment, three slots 10H are present in the housing 1H of the main connector CNH, and three heads 10P are present in the housing 1P of the plug connector CNP. However, the number of the slots 10H and the header 10P may be 1, 2, or 4 or more.
(2) In the above embodiment, the contact portions 47aP, 47bP, 47cP, 47dP of the shield contacts 4P-m of the plug connector CNP are bent and extended in a shape of a letter "く" from 4 portions separated in the Y direction from the lower end of the main body portion 41P. However, as in the shield contact 4PA-m of fig. 22 (a), the shield plates 5P-m of the main connector CNH may be inserted between the contact portions 147aP and 147bP by replacing the contact portions 47aP, 47bP, 47cP and 47dP with the contact portions 147aP and 147bP each formed of a pair of plate bodies having cross sections in the Y direction of "く" opposite to each other. As in the shield contact 4PB-m of fig. 22 (B), it may be configured by a single plate member having a contact portion and a soldered terminal portion, without dividing the terminal pressed into the elongated hole 17P-m of the head portion 10P in the plug connector CNP into the shield contact 4P-m and the shield plate 5P-m.
(3) The number of the contacts 3H-j, 3P-j forming 1 row in the above embodiment may be less than 2, or may be more than 2. The number of the shield plates 4H-m, the shield contacts 4P-m, and the shield plates 5P-m constituting 1 row may be less than 7 or more than 7. The number of the ribs 14H-k, and 15H-k may be less than 27 or more than 27.

Claims (9)

1. A high-speed transmission connector to be fitted to a mating connector, comprising:
a housing having one or more slots; and
a plurality of terminals including a ground terminal and a signal terminal, arranged in the slot along a 1 st direction orthogonal to a fitting direction of the connector,
a partition wall is provided between adjacent terminals in the insertion slot, and the height of the partition wall between the ground terminal and the signal terminal in the fitting direction is lower than the height of the partition walls in the fitting direction.
2. The connector for high-speed transmission according to claim 1,
the upper ends of the partition walls between the ground terminals and the signal terminals are located at substantially the same positions as the upper surface of the housing,
an upper end of a partition wall between the ground terminal and the signal terminal is located below an upper surface of the housing.
3. A connector for high-speed transmission according to claim 1 or 2,
the terminal has: a linear portion extending along the fitting direction; and a curved portion that curves from a tip of the linear portion to a side in a 2 nd direction orthogonal to the fitting direction and the 1 st direction,
the bent portion of the ground terminal and the bent portion of the signal terminal are not separated by the partition wall, and an air layer is formed between the bent portions.
4. A connector for high-speed transmission according to claim 1 or 2,
the terminal has: a linear portion extending along the fitting direction; and a curved portion that curves from a tip of the linear portion to a side in a 2 nd direction orthogonal to the fitting direction and the 1 st direction,
the straight portion of the ground terminal and the straight portion of the signal terminal are separated from each other by the partition wall.
5. A connector for high-speed transmission according to any one of claims 1 to 4,
a plurality of ribs are juxtaposed on the inner wall surfaces facing each other in the slot at intervals along the 1 st direction,
the plurality of terminals are accommodated one by one in a gap between adjacent ribs in the slot in an arrangement order in which 2 terminals for grounding and 2 terminals for signal are grouped and the 2 terminals for signal are sandwiched between the 2 terminals for grounding.
6. The connector for high-speed transmission according to claim 5,
the terminal has a fork portion, and solder is clamped and riveted in the fork portion,
the solder of the terminal is supported by the upper end of the rib.
7. A connector for high-speed transmission according to any one of claims 1 to 6,
the terminal has a contact portion that contacts a mating side connector,
the partition wall between the ground terminal and the signal terminal is notched at a portion on a front side of the contact portion.
8. A connector for high-speed transmission according to any one of claims 5 to 6,
the insertion groove has a support body for supporting a shield plate as another terminal, and the partition wall is bridged between the rib and the support body.
9. The connector for high-speed transmission according to claim 8,
a long hole is formed in the support body, and the shielding plate is pressed into the long hole.
CN201911264975.4A 2019-12-11 2019-12-11 Connector for high-speed transmission Active CN112952417B (en)

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CN201911264975.4A CN112952417B (en) 2019-12-11 2019-12-11 Connector for high-speed transmission
US17/116,245 US11626678B2 (en) 2019-12-11 2020-12-09 Connector for high-speed transmission and method for fixing solder to fork portion of connector for high-speed transmission
EP20213129.8A EP3836314B1 (en) 2019-12-11 2020-12-10 Connector for high-speed transmission

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EP3836314A1 (en) 2021-06-16
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