WO2023095377A1 - 接触圧調整方法及び高速伝送用コネクタ - Google Patents
接触圧調整方法及び高速伝送用コネクタ Download PDFInfo
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- WO2023095377A1 WO2023095377A1 PCT/JP2022/026142 JP2022026142W WO2023095377A1 WO 2023095377 A1 WO2023095377 A1 WO 2023095377A1 JP 2022026142 W JP2022026142 W JP 2022026142W WO 2023095377 A1 WO2023095377 A1 WO 2023095377A1
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- contact
- connector
- spring
- pitch direction
- contacts
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- 230000005540 biological transmission Effects 0.000 title claims description 19
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
-
- 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
- H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
-
- 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
-
- 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
- H01R13/6474—Impedance matching by variation of conductive properties, e.g. by dimension variations
Definitions
- the present invention relates to a contact pressure adjusting method and a high-speed transmission connector.
- Patent Document 1 Japanese Patent No. 6901603 discloses a board-to-board connector 101 in which a plurality of contacts 100 are arranged in a row, as shown in FIG. 16 of the present application.
- each contact 100 in order to increase the contact pressure of each contact 100 while maintaining the pitch of the plurality of contacts 100, each contact 100 typically has to be widened. not. However, in this case, the gap between two contacts 100 adjacent in the pitch direction is narrowed, so that the impedance of each contact 100 is lowered.
- An object of the present invention is to provide a technique for increasing only the contact pressure of each contact while maintaining the pitch of a plurality of contacts and the impedance of each contact.
- a contact pressure adjusting method for adjusting the contact pressure of each contact in a connector in which a plurality of conductive contacts are arranged in rows at a predetermined pitch, each contact comprising: It is assumed that one contact portion is supported by two spring pieces that are separated from each other in the pitch direction and extend parallel to each other and whose ends are connected, and that there is no conductor between the two spring pieces of each contact.
- a contact pressure adjustment method is provided that increases the According to a second aspect of the present invention, there is provided a connector in which a plurality of conductive contacts are arranged in a row at a predetermined pitch, each contact extending parallel to each other while being spaced apart from each other in the pitch direction, and having both ends extending parallel to each other.
- One contact portion is supported by two connected spring strips, no conductor exists between the two spring strips of each contact, and no conductor is present between the two contacts adjacent in the pitch direction.
- the gap in the pitch direction between the two spring strips of each contact without a conductor is equal to the gap in the pitch direction between the two spring strips of one of the two contacts that are adjacent in the pitch direction.
- a high-speed transmission connector in which the gap in the pitch direction between the spring piece near one contact and the spring piece near one of the two spring pieces of the other contact is equal to or less than the gap in the pitch direction.
- the cross-sectional areas and cross-sectional shapes of the two spring pieces may be equal to each other. At least a part of the two spring pieces may be a cantilever bent in a U shape. Each contact may be formed symmetrically with respect to the center line.
- An insulative housing for holding the plurality of contacts is further provided, wherein the housing includes a plurality of contact accommodating portions respectively accommodating the plurality of contacts, and a plurality of partition walls separating the plurality of contact accommodating portions in the pitch direction.
- a corresponding partition may be arranged between the spring piece close to one of the contacts.
- Each contact may have a soldering portion at the end opposite the contact portion.
- FIG. 1 is an exploded perspective view of an information processing device
- FIG. FIG. 4 is a perspective view of the CPU board viewed from another angle
- 1 is a perspective view of a connector
- FIG. 3 is an exploded perspective view of the connector
- FIG. Fig. 2 is a perspective view of a housing
- It is a partially notched perspective view of a connector.
- It is a partially notched perspective view of a connector.
- FIG. 7 is a cross-sectional view of the connector corresponding to FIG. 6; It is a perspective view of a contact.
- FIG. 11 is a perspective view of the contact seen from another angle
- 4 is a plan view of a contact
- FIG. 4 is a perspective view of a contact row
- FIG. FIG. 4 is a partially cutaway perspective view of a contact row
- It is explanatory drawing of a contact pressure adjustment method. It is the figure which simplified FIG. 3 of patent document 1.
- FIG. 1 shows an exploded perspective view of the information processing device 1.
- the information processing apparatus 1 includes a CPU board 2 (first board), a connector 3 (high-speed transmission connector), an input/output board 4 (second board), and a support board 5 .
- the CPU board 2, connector 3, input/output board 4, and support board 5 are stacked in this order. That is, the connector 3 is arranged between the CPU board 2 and the input/output board 4 .
- the CPU board 2 and the input/output board 4 are rigid boards such as paper phenol boards and glass epoxy boards.
- FIG. 2 shows a perspective view of the CPU board 2 viewed from another angle.
- the CPU board 2 has a connector facing surface 2A that faces the connector 3.
- a plurality of signal pad rows 6 are formed on the connector facing surface 2A.
- a plurality of bolt fastening holes 8 are formed in the CPU board 2 .
- a plurality of signal pad rows 6 extend parallel to each other. Each signal pad row 6 includes multiple signal pads 10 .
- the longitudinal direction of each signal pad row 6 will be referred to as the pitch direction.
- a direction orthogonal to the pitch direction is defined as a width direction.
- a plurality of signal pad rows 6 are arranged in the width direction.
- the thickness direction of the CPU board 2 is perpendicular to the pitch direction and width direction, and is hereinafter referred to as the vertical direction.
- the vertical direction includes the downward direction toward which the connector facing surface 2A faces and the upward direction opposite to the downward direction. It should be noted that the vertical direction, the upward direction, and the downward direction are merely directions defined for convenience of explanation, and do not imply postures of the information processing apparatus 1 and the connector 3 in the actual usage state.
- the plurality of bolt fastening holes 8 are arranged apart from each other in the pitch direction.
- the multiple bolt fastening holes 8 include a first bolt fastening hole 8A, a second bolt fastening hole 8B, and a third bolt fastening hole 8C.
- the first bolt fastening holes 8A, the second bolt fastening holes 8B, and the third bolt fastening holes 8C are arranged in this order.
- the input/output board 4 has a connector facing surface 4A that faces the connector 3. As shown in FIG. A plurality of signal pad rows 11 and a plurality of hold-down pads 12 are formed on the connector facing surface 4A. Further, the input/output board 4 is formed with a plurality of bolt fastening holes 13 .
- a plurality of signal pad rows 11 extend parallel to each other.
- a plurality of signal pad rows 11 are arranged in the width direction.
- Each signal pad row 11 includes multiple signal pads 15 .
- the plurality of bolt fastening holes 13 are arranged apart from each other in the pitch direction.
- the multiple bolt fastening holes 13 include a first bolt fastening hole 13A, a second bolt fastening hole 13B, and a third bolt fastening hole 13C.
- the first bolt fastening holes 13A, the second bolt fastening holes 13B, and the third bolt fastening holes 13C are arranged in this order.
- the support board 5 is typically a part of the housing that houses the CPU board 2, the connector 3, and the input/output board 4, and is made of aluminum or aluminum alloy, for example.
- the support board 5 includes a flat board body 20 and a plurality of nuts 21 . A plurality of nuts 21 protrude upward from the board body 20 .
- the multiple nuts 21 include a first nut 21A, a second nut 21B, and a third nut 21C.
- the first nut 21A, the second nut 21B, and the third nut 21C are arranged to correspond to the first bolt fastening hole 13A, the second bolt fastening hole 13B, and the third bolt fastening hole 13C of the input/output board 4, respectively.
- the connector 3 is configured to be mountable on the connector facing surface 4A of the input/output board 4 .
- FIG. 3 shows a perspective view of the connector 3.
- FIG. 4 shows an exploded perspective view of the connector 3.
- the connector 3 includes a rectangular plate-like housing 30 made of insulating resin, a plurality of contact rows 31, and a plurality of hold-downs 32. As shown in FIG. A plurality of contact rows 31 and a plurality of holddowns 32 are held by the housing 30 .
- a plurality of contact rows 31 extend parallel to each other.
- a plurality of contact rows 31 are arranged in the width direction.
- Each contact row 31 extends linearly along the pitch direction.
- Each contact row 31 includes multiple contacts 33 .
- Each contact 33 is electrically conductive and is formed, for example, by punching and bending a metal plate plated with copper or a copper alloy.
- the plurality of hold-downs 32 are arranged to correspond to the plurality of hold-down pads 12 of the input/output board 4, respectively, as shown in FIG.
- Each hold-down 32 is formed by punching and bending a metal plate such as a stainless steel plate.
- FIG. 5 shows a perspective view of the housing 30.
- the housing 30 has a CPU board facing surface 30A as a housing upper surface that can face the CPU board 2 when facing upward, and a housing lower surface that can face the input/output board 4 when facing downward. and an input/output board facing surface 30B.
- the CPU board facing surface 30A is the top surface of the housing 30 .
- the input/output board facing surface 30B is the bottom surface of the housing 30 .
- the connector 3 is mounted on the input/output board 4 .
- the plurality of contact rows 31 are soldered to the plurality of signal pad rows 11, respectively, and the plurality of hold-downs 32 are soldered to the plurality of hold-down pads 12, respectively.
- the input/output board 4 with the connector 3 mounted thereon is placed on the support board 5 .
- the first nut 21A, the second nut 21B, and the third nut 21C of the support board 5 pass through the first bolt fastening hole 13A, the second bolt fastening hole 13B, and the third bolt fastening hole 13C of the input/output board 4, respectively. do.
- the CPU board 2 is attached to the support board 5 so as to overlap the connector 3 with the CPU board 2 .
- the first bolt 40A is fastened to the first nut 21A through the first bolt fastening hole 8A and the first bolt fastening hole 13A
- the second bolt 40B is fastened to the second bolt fastening hole 8B and the second bolt.
- the second nut 21B is fastened through the fastening hole 13B
- the third bolt 40C is fastened to the third nut 21C via the third bolt fastening hole 8C and the third bolt fastening hole 13C.
- the connector 3 of this embodiment is designed for high-speed transmission, and the frequency of signals flowing through each contact 33 is assumed to range from 10 GHz to 25 GHz. However, it is not limited to this.
- the multiple contacts 33 include differential transmission signal contacts and ground contacts.
- the connector 3 will be described in more detail below.
- the housing 30 has a rectangular flat plate shape.
- a plurality of contact housing rows 62 are formed in the housing 30 .
- a plurality of contact housing rows 62 extend parallel to each other.
- Each contact accommodation row 62 extends linearly along the pitch direction.
- a plurality of contact housing rows 62 are arranged in the width direction.
- Each contact accommodation row 62 includes a plurality of contact accommodation portions 63 .
- FIG. 6 shows a partially cutaway perspective view of the connector 3 in which the housing 30 is cut along a plane orthogonal to the pitch direction.
- FIG. 7 shows a partially cutaway perspective view of the connector 3 in which the housing 30 is cut along a plane perpendicular to the pitch direction and a plane perpendicular to the width direction.
- FIG. 8 shows a partially cutaway perspective view of the connector 3 in which the housing 30 is cut along a plane perpendicular to the pitch direction.
- FIG. 9 shows a cross-sectional view of the connector 3 obtained by cutting the housing 30 along a plane orthogonal to the pitch direction.
- the plurality of contact accommodation rows 62 accommodate the plurality of contact rows 31, respectively. That is, the plurality of contact accommodating portions 63 accommodate the plurality of contacts 33 respectively.
- Each contact accommodating portion 63 is formed for mounting each contact 33 to the housing 30 . As shown in FIG. 8, each contact accommodating portion 63 is formed to penetrate through the housing 30 in the vertical direction.
- each contact accommodating portion 63 includes a contact accommodating portion main body 70 and a solder connection confirmation hole 71 .
- the contact accommodating portion main body 70 and the solder connection confirmation hole 71 are formed apart from each other in the width direction. Both the contact accommodating portion main body 70 and the solder connection confirmation hole 71 are formed so as to pass through the housing 30 in the vertical direction.
- the housing 30 has a width partition wall 72 that partitions the contact housing portion main body 70 and the solder connection confirmation hole 71 of the contact housing portion 63 in the width direction.
- a notch 73 is formed at the lower end of the width partition wall 72 .
- the housing 30 has a pitch partition wall 74 that partitions the contact accommodating portion bodies 70 of the two contact accommodating portions 63 that are adjacent in the pitch direction in the pitch direction.
- a regulation wall 75 projecting in the pitch direction is formed at the upper end of the pitch partition wall 74 .
- FIG. 10 and 11 show perspective views of each contact 33.
- FIG. FIG. 12 shows a plan view of each contact 33. As shown in FIG.
- each contact 33 includes a fixed portion 80, a soldering portion 81, and an electrical contact spring piece 82. As shown in FIGS.
- the fixing portion 80 is a portion that is press-fitted into the contact housing main body 70 shown in FIG. That is, each contact 33 is held by the housing 30 by press-fitting the fixing portion 80 into the contact accommodating portion main body 70 .
- the fixed portion 80 is a plate having a thickness direction perpendicular to the pitch direction.
- the fixing portion 80 includes a fixing portion main body 80A and two press-fit claws 80B. The two press-fit claws 80B are formed so as to protrude in the pitch direction from both end portions in the pitch direction of the fixing portion main body 80A.
- the soldering portion 81 and the electrical contact spring piece 82 are arranged opposite to each other in the width direction with the fixing portion 80 interposed therebetween.
- the direction in which the electrical contact spring piece 82 is viewed from the soldering portion 81 is referred to as the front
- the direction in which the electrical contact spring piece 82 is viewed from the soldering portion 81 is referred to as the rear. Accordingly, the electrical contact spring piece 82 is arranged in front of the fixing portion 80 and the soldering portion 81 is arranged behind the fixing portion 80 .
- the soldering portion 81 includes a soldering portion main body 81A and a posture stabilizing spring piece 81B.
- the soldering portion main body 81A is a portion that is soldered to the corresponding signal pad 15 of the input/output board 4 shown in FIG. As shown in FIG. 10, the soldering portion main body 81A extends rearward from the lower end of the fixing portion 80. As shown in FIG. The posture stabilizing spring piece 81B protrudes upward from the rear end of the soldering portion main body 81A.
- the electrical contact spring piece 82 is a portion that functions as an electrical contact with the corresponding signal pad 10 of the CPU board 2 shown in FIG. As shown in FIG. 10 , the electrical contact spring piece 82 includes a curved connecting portion 83 , an elastically deformable portion 84 , a contact portion 85 and a displacement restricting portion 86 .
- the curved connecting portion 83, the elastically deformable portion 84, the contact portion 85, and the displacement restricting portion 86 are connected in this order.
- the curved connecting portion 83 protrudes forward from the upper end of the fixing portion 80 and is curved in a U shape so as to protrude upward and open downward.
- the elastically deformable portion 84 When the elastically deformable portion 84 is observed along the pitch direction, the elastically deformable portion 84 includes a vertical portion 84A, a horizontal portion 84B, a curved portion 84C, and an inclined portion 84D.
- the vertical portion 84A, horizontal portion 84B, curved portion 84C, and inclined portion 84D are arranged in this order.
- the vertical portion 84A protrudes downward from the tip of the curved connecting portion 83.
- the horizontal portion 84B extends forward from the lower end of the vertical portion 84A so as to be parallel to the width direction.
- the curved portion 84C protrudes upward from the front end of the horizontal portion 84B and is curved in a U shape so as to protrude forward and open rearward.
- the inclined portion 84D protrudes rearward from the upper end of the curved portion 84C and is inclined slightly upward.
- the elastically deformable portion 84 is formed to have two spring pieces with both ends connected. That is, the elastically deformable portion 84 includes two spring pieces 90 extending along the elastically deformable portion 84, a fixed portion side connecting portion 91 connecting the two spring pieces 90 on the fixed portion 80 side, and two spring pieces. and a contact portion side connection portion 92 that connects the contact portion 85 side of the contact portion 90 .
- the two spring pieces 90 face each other in the pitch direction and are separated from each other in the pitch direction.
- the two spring pieces 90 extend parallel to each other.
- the fixed part side connecting part 91 is located in the vertical part 84A.
- the contact portion side connecting portion 92 is positioned at the inclined portion 84D.
- the two spring pieces 90 are formed from the vertical portion 84A to the inclined portion 84D.
- the slit 93 defined by the two spring pieces 90, the fixing portion side connecting portion 91, and the contact portion side connecting portion 92 is formed from the vertical portion 84A to the inclined portion 84D.
- the two spring pieces 90 have the same cross-sectional area and cross-sectional shape.
- the cross-sectional areas and cross-sectional shapes of the two spring pieces 90 are equal to each other.
- Each spring piece 90 has a constant cross-sectional area and cross-sectional shape at least in the sections of the horizontal portion 84B and the curved portion 84C.
- the contact portion 85 is a portion that can be electrically contacted with the corresponding signal pad 10 of the CPU board 2 shown in FIG. As shown in FIG. 11, the contact portion 85 is provided at the tip of the inclined portion 84D of the elastically deformable portion 84, and is curved in a U shape that protrudes upward and opens downward.
- the displacement restricting portion 86 includes two restricting pieces 86A projecting in opposite directions from the distal end of the contact portion 85 in the pitch direction.
- each contact 33 is formed symmetrically with respect to a bisector 33D (center line) that bisects each contact 33 in the pitch direction.
- FIG. 9 shows a state where each contact 33 is attached to each contact accommodating portion 63 .
- each contact 33 is press-fitted into the contact accommodating portion main body 70 of each contact accommodating portion 63 from below. That is, the two press-fitting claws 80B of the fixing portion 80 are made to bite into the wall surfaces of the two pitch partition walls 74 that partition the contact housing portion main body 70 in the width direction.
- the electrical contact spring piece 82 is accommodated in the contact accommodating portion main body 70
- the attitude stabilization spring piece 81B of the soldering portion 81 is accommodated in the solder connection confirmation hole 71
- the soldering portion main body 81A of the soldering portion 81 is disconnected. It is housed in the notch 73 .
- the easily elastically deformable portions 84 are elastically deformed so that the easily elastically deformable portions 84 are compressed in the vertical direction by contacting the lower surfaces of the corresponding restricting walls 75 with the respective restricting pieces 86A. That is, the electrical contact spring piece 82 is housed in the contact housing body 70 with the elastically deformable portion 84 slightly elastically deformed.
- the width partition wall 72 is inserted between the fixing portion 80 and the posture stabilizing spring piece 81B of the soldering portion 81, so that the soldering portion 81 is arranged so that the posture stabilizing spring piece 81B is attached to the fixing portion 80. It elastically deforms so as to move away from in the width direction.
- the posture-stabilizing spring piece 81B is pressed against the width partition wall 72 by the elastic restoring force of the soldered portion 81 .
- the fixing portion 80 and the soldering portion 81 elastically sandwich the width partition wall 72 in the width direction, thereby stabilizing the attitude of each contact 33 after the press-fitting.
- a solder fillet (not shown) is formed between the soldering portion 81 and the signal pad 15 by soldering the soldering portion body 81A of the soldering portion 81 to the corresponding signal pad 15 of the input/output board 4 shown in FIG.
- the solder fillet can be confirmed from above through the solder connection confirmation hole 71 .
- FIG. 13 and 14 show perspective views of the contact row 31.
- FIG. 13 and 14 show the pitch P of the contact row 31.
- FIG. 14 shows the pitch P, the inner spring gap S1 and the outer spring gap S2.
- the pitch P of the contact row 31 means the distance in the pitch direction between the reference points Q of two adjacent contacts 33 .
- the position of the reference point Q in each contact 33 is the same among the contacts 33 .
- the inner spring gap S1 is the gap in the pitch direction between the two spring pieces 90 of each contact 33 .
- the outer spring gap S2 is defined by the spring piece 90 near the other contact 33 of the two spring pieces 90 of one of the two contacts 33 adjacent in the pitch direction, and the two spring pieces 90 of the other contact 33 . This is the gap in the pitch direction between the spring piece 90 closer to one contact 33 among the spring pieces 90 .
- the contact 33A has a spring piece 90A and a spring piece 90B.
- the spring piece 90B is closer to the contact 33B than the spring piece 90A.
- the contact 33B has a spring piece 90C and a spring piece 90D.
- the spring piece 90C is closer to the contact 33A than the spring piece 90D.
- the outer spring gap S2 is a gap in the pitch direction between the spring pieces 90B and 90C.
- the plurality of inner spring gaps S1 are equal to each other, and the plurality of outer spring gaps S2 are also equal to each other.
- Each inner spring gap S1 is set to be equal to or less than each outer spring gap S2. In other words, each inner spring gap S1 is set so as not to be wider than each outer spring gap S2.
- the inner spring gaps S1 may have different values, and the outer spring gaps S2 may have different values. That is, the outer spring gap S2 between the contacts 33A and 33B and the outer spring gap S2 between the contacts 33B and 33C may have different values.
- FIG. 15 is a drawing showing only the cross section in FIG.
- the contact pressure of each contact 33 referred to here means the contact pressure of each contact 33 with respect to the corresponding signal pad 10 .
- each contact 33 supports one contact portion 85 by means of two spring pieces 90 extending parallel to each other while being separated from each other in the pitch direction and having both ends connected.
- Several techniques are conceivable as techniques for increasing the contact pressure of the contact 33 .
- the first is to shorten the spring length of each contact 33 .
- the contact pressure of each contact 33 can be easily increased by shortening the elastically deformable portion 84 of each contact 33 .
- the thickness of each contact 33 should be increased.
- the plate thickness of each contact 33 as a whole may be increased, or only the plate thickness of the easily elastically deformable portion 84 of each contact 33 may be increased locally.
- a slight increase or decrease in the plate thickness causes a large change in the contact pressure.
- the third is to use a material with a higher Young's modulus as the material of each contact 33 .
- the workability in manufacturing each contact 33 by punching is deteriorated, and the number of Young's moduli that can be adopted is limited from the viewpoint of easy material procurement, and fine adjustment of the contact pressure is impossible. Can not.
- each contact 33 is expanded in the pitch direction. That is, in FIG. 14, if the outer spring gap S2 is reduced while the inner spring gap S1 remains unchanged, the cross-sectional area of each spring piece 90 increases, so that the contact pressure of each contact 33 can be easily increased. However, with this method, the impedance of each contact 33 is lowered, so that desired impedance and desired contact pressure cannot be achieved at the same time.
- the two spring pieces 90 of each contact 33 are arranged in the pitch direction as indicated by the thick line arrows. , the two spring pieces 90 of each contact 33 are extended toward each other so as to approach each other at .
- the two spring strips 90 of each contact 33 are arranged so that the two spring strips 90 of each contact 33 approach each other in the pitch direction. Flesh out each one.
- the inner spring gap S1 is narrowed while maintaining the pitch P of the contact rows 31 and the outer spring gap S2.
- the inner spring gap S1 is narrowed so that the inner spring gap S1 is equal to or narrower than the outer spring gap S2.
- the contact pressure of each contact 33 can be increased while maintaining the predetermined pitch P and the impedance of each contact 33 .
- it is as follows.
- the contact pressure of each contact 33 when the contact pressure of each contact 33 is increased, the pitch P of the contact rows 31 does not change. Therefore, the contact pressure of each contact 33 can be freely set independently of the pitch P of the contact row 31 .
- the elastically deformable portion 84 has a large geometrical moment of inertia, the elastically deformable portion 84 has a stiff spring characteristic (ease of bending), and the contact pressure of each contact 33 can be increased. Further, since the geometrical moment of inertia of the elastically deformable portion 84 is proportional to the inner spring gap S1, the contact pressure of each contact 33 can be easily finely adjusted.
- both the inner spring gap S1 and the outer spring gap S2 are spaces in which conductors do not exist, and stubs for high-speed transmission, for example, are not formed.
- the two spring pieces 90 of each contact 33 are arranged so that the two spring pieces 90 of each contact 33 approach each other in the pitch direction while maintaining the pitch P of the contact row 31 and the outer spring gap S2.
- the respective expansion toward each other narrows the inner spring gap S1, thereby increasing the contact pressure of each contact 33 while maintaining the pitch P of the contact row 31 and the impedance of each contact 33 .
- each contact 33 supports one contact portion 85 by two spring pieces 90 extending parallel to each other while being separated from each other in the pitch direction and having both ends connected. It is assumed that no conductor exists between the two spring pieces 90 of each contact 33 . As shown in FIG. 13, it is assumed that no conductor exists between two contacts 33 adjacent in the pitch direction. Then, as shown in FIG. 15, the two spring pieces 90 of each contact 33 are arranged so that the two spring pieces 90 of each contact 33 approach each other in the pitch direction while maintaining the predetermined pitch P and the outer spring gap S2.
- the contact pressure of each contact 33 can be increased while maintaining the predetermined pitch P and the impedance of each contact 33 .
- the connector 3 in which a plurality of conductive contacts 33 are arranged in a row at a predetermined pitch is configured as follows. That is, as shown in FIG. 11, each contact 33 supports one contact portion 85 by two spring pieces 90 extending parallel to each other while being separated from each other in the pitch direction and having both ends connected. There is no conductor between the two spring pieces 90 that each contact 33 has. As shown in FIG. 13, no conductor exists between two contacts 33 adjacent in the pitch direction. As shown in FIG. 15, the inner spring gap S1 in the pitch direction between the two spring pieces 90 of each contact 33 is less than the outer spring gap S2. In other words, the dimension of the inner spring gap S1 is less than or equal to the dimension of the outer spring gap S2. In other words, the inner spring gap S1 is not wider than the outer spring gap S2. According to the above configuration, the connector 3 in which the contact pressure of each contact 33 is increased while maintaining the predetermined pitch P and the impedance of each contact 33 is realized.
- the two spring pieces 90 of the contact 33 have the same cross-sectional area and cross-sectional shape.
- the two spring pieces 90 are cantilever beams at least a portion of which is bent in a U shape.
- each contact 33 is formed symmetrically across a bisecting line 33D (center line).
- the connector 3 further comprises an insulating housing 30 holding a plurality of contacts 33.
- the housing 30 has a plurality of contact housing portions 63 that respectively house the plurality of contacts 33, and a plurality of pitch partition walls 74 (partition walls) that separate the plurality of contact housing portions 63 in the pitch direction.
- one of the two spring pieces 90 of the contact 33A has a spring piece 90B that is closer to the other contact 33B and the other contact 33B.
- a corresponding pitch partition wall 74 is arranged between a spring piece 90C closer to one contact 33A of the two spring pieces 90 possessed by .
- the insulating pitch partition wall 74 Since the insulating pitch partition wall 74 has a higher dielectric constant than air, it acts to lower the impedance of each contact 33 . Furthermore, the insulating pitch partition wall 74 also exhibits the effect of preventing a short circuit between two contacts 33 adjacent in the pitch direction.
- each contact 33 has a soldering portion 81 at the end opposite to the contact portion 85 .
- the contact row 31 extends linearly along the pitch direction in the above embodiment.
- the contact row 31 may extend in an arc shape in plan view.
- the connector 3 is a board-to-board connector for connecting the CPU board 2 and the input/output board 4, but it is not limited to this.
- the connector 3 may be a cable-to-board connector or a cable-to-cable connector.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Description
本願発明の第2の観点によれば、導電性を有する複数のコンタクトが所定ピッチで列状に並べられたコネクタであって、各コンタクトは、ピッチ方向において互いに離れつつ互いに平行に延びると共に両端が連結された2つのバネ片によって1つの接点部を支持しており、各コンタクトが有する前記2つのバネ片の間には導体が存在せず、前記ピッチ方向で隣り合う2つのコンタクトの間には導体が存在せず、各コンタクトが有する前記2つのバネ片の間の前記ピッチ方向における隙間は、前記ピッチ方向で隣り合う2つのコンタクトのうち、一方のコンタクトが有する前記2つのバネ片のうち他方のコンタクトに近いバネ片と、他方のコンタクトが有する前記2つのバネ片のうち一方のコンタクトに近いバネ片と、の間の前記ピッチ方向における隙間以下である、高速伝送用コネクタが提供される。
前記2つのバネ片の断面積及び断面形状は、互いに等しくてもよい。
前記2つのバネ片は少なくとも一部がU字状に曲げられた片持ち梁であってもよい。
各コンタクトは、中心線を挟んで左右対称に形成されてもよい。
前記複数のコンタクトを保持する絶縁性のハウジングを更に備え、前記ハウジングは、前記複数のコンタクトをそれぞれ収容する複数のコンタクト収容部と、前記複数のコンタクト収容部を前記ピッチ方向でそれぞれ隔てる複数の隔壁と、を有し、前記ピッチ方向で隣り合う2つのコンタクトのうち、一方のコンタクトが有する前記2つのバネ片のうち他方のコンタクトに近いバネ片と、他方のコンタクトが有する前記2つのバネ片のうち一方のコンタクトに近いバネ片と、の間に、対応する隔壁が配置されてもよい。
各コンタクトは、前記接点部の反対側の端部に半田付け部を有してもよい。
2 CPUボード
2A コネクタ対向面
3 コネクタ(高速伝送用コネクタ)
4 入出力ボード
4A コネクタ対向面
5 サポートボード
6 信号パッド列
8 ボルト締結孔
8A 第1ボルト締結孔
8B 第2ボルト締結孔
8C 第3ボルト締結孔
10 信号パッド
11 信号パッド列
12 ホールドダウンパッド
13 ボルト締結孔
13A 第1ボルト締結孔
13B 第2ボルト締結孔
13C 第3ボルト締結孔
15 信号パッド
20 ボード本体
21 ナット
21A 第1ナット
21B 第2ナット
21C 第3ナット
30 ハウジング
30A CPUボード対向面
30B 入出力ボード対向面
31 コンタクト列
32 ホールドダウン
33 コンタクト
33A コンタクト
33B コンタクト
33C コンタクト
33D 二分線(中心線)
40A 第1ボルト
40B 第2ボルト
40C 第3ボルト
62 コンタクト収容列
63 コンタクト収容部
70 コンタクト収容部本体
71 半田接続確認孔
72 幅仕切壁
73 切り欠き
74 ピッチ仕切壁(隔壁)
75 規制壁
80 固定部
80A 固定部本体
80B 圧入爪
81 半田付け部
81A 半田付け部本体
81B 姿勢安定バネ片
82 電気接触バネ片
83 湾曲連結部
84 弾性変形容易部
84A 垂直部
84B 水平部
84C 湾曲部
84D 傾斜部
85 接点部
86 変位規制部
86A 規制片
90 バネ片
90A バネ片
90B バネ片
90C バネ片
90D バネ片
91 固定部側連結部
92 接点部側連結部
93 スリット
P ピッチ
Q 基準点
S1 内バネ隙間(隙間)
S2 外バネ隙間(隙間)
Claims (7)
- 導電性を有する複数のコンタクトが所定ピッチで列状に並べられたコネクタにおいて各コンタクトの接触圧を調整する接触圧調整方法であって、
各コンタクトは、ピッチ方向において互いに離れつつ互いに平行に延びると共に両端が連結された2つのバネ片によって1つの接点部を支持するものとし、
各コンタクトが有する前記2つのバネ片の間には導体が存在しないものとし、
前記ピッチ方向で隣り合う2つのコンタクトの間には導体が存在しないものとし、
前記所定ピッチ、及び、前記ピッチ方向で隣り合う2つのコンタクトのうち、一方のコンタクトが有する前記2つのバネ片のうち他方のコンタクトに近いバネ片と、他方のコンタクトが有する前記2つのバネ片のうち一方のコンタクトに近いバネ片と、の間の前記ピッチ方向における隙間、を維持しながら、各コンタクトが有する前記2つのバネ片が前記ピッチ方向において互いに近づくように各コンタクトが有する前記2つのバネ片を互いに向かってそれぞれ拡張し、
これにより、前記所定ピッチ及び各コンタクトのインピーダンスを維持しながら各コンタクトの接触圧を増大させる、
接触圧調整方法。 - 導電性を有する複数のコンタクトが所定ピッチで列状に並べられたコネクタであって、
各コンタクトは、ピッチ方向において互いに離れつつ互いに平行に延びると共に両端が連結された2つのバネ片によって1つの接点部を支持しており、
各コンタクトが有する前記2つのバネ片の間には導体が存在せず、
前記ピッチ方向で隣り合う2つのコンタクトの間には導体が存在せず、
各コンタクトが有する前記2つのバネ片の間の前記ピッチ方向における隙間は、前記ピッチ方向で隣り合う2つのコンタクトのうち、一方のコンタクトが有する前記2つのバネ片のうち他方のコンタクトに近いバネ片と、他方のコンタクトが有する前記2つのバネ片のうち一方のコンタクトに近いバネ片と、の間の前記ピッチ方向における隙間以下である、
高速伝送用コネクタ。 - 請求項2に記載の高速伝送用コネクタであって、
前記2つのバネ片の断面積及び断面形状は、互いに等しい、
高速伝送用コネクタ。 - 請求項2又は3に記載の高速伝送用コネクタであって、
前記2つのバネ片は少なくとも一部がU字状に曲げられた片持ち梁である、
高速伝送用コネクタ。 - 請求項2から4までの何れか1項に記載の高速伝送用コネクタであって、
各コンタクトは、中心線を挟んで左右対称に形成されている、
高速伝送用コネクタ。 - 請求項2から5までの何れか1項に記載の高速伝送用コネクタであって、
前記複数のコンタクトを保持する絶縁性のハウジングを更に備え、
前記ハウジングは、前記複数のコンタクトをそれぞれ収容する複数のコンタクト収容部と、前記複数のコンタクト収容部を前記ピッチ方向でそれぞれ隔てる複数の隔壁と、を有し、
前記ピッチ方向で隣り合う2つのコンタクトのうち、一方のコンタクトが有する前記2つのバネ片のうち他方のコンタクトに近いバネ片と、他方のコンタクトが有する前記2つのバネ片のうち一方のコンタクトに近いバネ片と、の間に、対応する隔壁が配置されている、
高速伝送用コネクタ。 - 請求項2から6までの何れか1項に記載の高速伝送用コネクタであって、
各コンタクトは、前記接点部の反対側の端部に半田付け部を有している、
高速伝送用コネクタ。
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JP2004206908A (ja) * | 2002-12-24 | 2004-07-22 | D D K Ltd | 電気コネクタ |
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JP2021026874A (ja) * | 2019-08-02 | 2021-02-22 | イリソ電子工業株式会社 | 可動コネクタ、及び可動コネクタの製造方法 |
JP2021089821A (ja) * | 2019-12-03 | 2021-06-10 | 日本航空電子工業株式会社 | コネクタ組立体 |
JP6901603B1 (ja) * | 2020-03-27 | 2021-07-14 | 日本航空電子工業株式会社 | 基板対基板コネクタ |
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CN203135125U (zh) * | 2013-02-22 | 2013-08-14 | 安费诺商用电子产品(成都)有限公司 | 一种高速连接器 |
JP2015050030A (ja) * | 2013-09-02 | 2015-03-16 | 矢崎総業株式会社 | 端子付きフラットケーブルおよびフラットケーブル |
WO2020160275A1 (en) * | 2019-01-31 | 2020-08-06 | Commscope Technologies Llc | Anti-arc connector and pin array for a port |
CN113258325A (zh) * | 2020-01-28 | 2021-08-13 | 富加宜(美国)有限责任公司 | 高频中板连接器 |
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JP2004206908A (ja) * | 2002-12-24 | 2004-07-22 | D D K Ltd | 電気コネクタ |
JP2016184556A (ja) * | 2015-03-27 | 2016-10-20 | 第一電子工業株式会社 | コネクタ |
JP2021026874A (ja) * | 2019-08-02 | 2021-02-22 | イリソ電子工業株式会社 | 可動コネクタ、及び可動コネクタの製造方法 |
JP2021089821A (ja) * | 2019-12-03 | 2021-06-10 | 日本航空電子工業株式会社 | コネクタ組立体 |
JP6901603B1 (ja) * | 2020-03-27 | 2021-07-14 | 日本航空電子工業株式会社 | 基板対基板コネクタ |
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