WO2020162373A1 - Connector - Google Patents

Connector Download PDF

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Publication number
WO2020162373A1
WO2020162373A1 PCT/JP2020/003804 JP2020003804W WO2020162373A1 WO 2020162373 A1 WO2020162373 A1 WO 2020162373A1 JP 2020003804 W JP2020003804 W JP 2020003804W WO 2020162373 A1 WO2020162373 A1 WO 2020162373A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact conductor
contact
conductor
signal
ground
Prior art date
Application number
PCT/JP2020/003804
Other languages
French (fr)
Japanese (ja)
Inventor
弘樹 中村
貴司 舛永
Original Assignee
第一精工株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 第一精工株式会社 filed Critical 第一精工株式会社
Priority to CN202080012457.8A priority Critical patent/CN113412558B/en
Priority to JP2020571174A priority patent/JP7298628B2/en
Publication of WO2020162373A1 publication Critical patent/WO2020162373A1/en
Priority to US17/391,033 priority patent/US11967789B2/en

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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
    • 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
    • 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
    • H01R13/6476—Impedance matching by variation of conductive properties, e.g. by dimension variations by making an aperture, e.g. a hole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts

Definitions

  • the present disclosure relates to connectors.
  • Patent Document 1 discloses a coaxial connector that includes a contact connected to a center conductor of a coaxial cable, a resin body that houses the contact, and a metal shell that covers the body housing the contact.
  • the present disclosure provides a connector effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
  • a connector is a coaxial cable that includes a signal line and a shield line, a dielectric layer interposed between the signal line and the shield line, and an insulating coating that covers the shield line.
  • a signal contact conductor which is attached to a terminal portion where the insulating coating is removed and the signal line and the shield line are partially exposed, and which is connected to a mating connector mounted on a wiring board and which is conductive with the signal line.
  • the contact portion that contacts the contact line, the connection portion to which the signal line is connected, and the intermediate portion that connects the contact portion and the connection portion.
  • at least one of the area and the distance of the signal contact conductor facing the ground contact conductor is changed so as to suppress the characteristic impedance change between the signal contact conductor and the ground contact conductor.
  • the change in characteristic impedance from the connecting portion to the contact portion is suppressed by at least one of the area and the distance of the signal contact conductor facing the ground contact conductor. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
  • a connector according to one aspect of the present disclosure is a coaxial cable having a signal line and a shield line, a dielectric layer interposed between the signal line and the shield line, and an insulating coat that covers the shield line.
  • a connector which is attached to the terminal part where the signal line and the shielded wire are partially exposed and which is connected to the counterpart connector mounted on the wiring board, and which has a signal contact conductor conducting with the signal line, and a shielded wire.
  • the signal contact conductor includes a conductive ground contact conductor and an insulating housing interposed between the signal contact conductor and the ground contact conductor.
  • the width of the intermediate portion is changed according to the position in the direction so as to suppress.
  • the change in the characteristic impedance from the connection part to the contact part is suppressed by the width of the intermediate part. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
  • the ground contact conductor is a fitting part that fits into the ground contact conductor of the mating connector, a clamp part that holds the part of the coaxial cable where the insulation coating has been removed, and contacts the shield wire
  • a barrel portion for holding the housing between the clamp portion and the clamp portion, the contact portion is located in the fitting portion, the connection portion is located in the barrel portion, and between the fitting portion and the barrel portion.
  • the amount of metal on the ground contact conductor side is smaller than that in the barrel portion and the like.
  • the characteristic impedance between the signal contact conductor and the ground contact conductor tends to be higher than that in the barrel portion or the like.
  • the widened portion in the intermediate portion it is possible to prevent the characteristic impedance from increasing in the path from the connection portion to the contact portion.
  • the width of the connecting portion may be larger than the width of the intermediate portion, and the housing may be configured to form a cavity between the connecting portion and the ground contact conductor.
  • the workability of connecting the signal line to the connecting portion is improved by increasing the width of the connecting portion.
  • the width of the connection portion increases, the characteristic impedance in the connection portion decreases.
  • the housing forms a cavity between the connection portion and the ground contact conductor, the dielectric constant between the connection portion and the ground contact conductor is reduced. Therefore, the characteristic impedance is prevented from being lowered due to the increased width of the connection portion. Therefore, it is possible to achieve both workability of connection of the signal line and suppression of change in characteristic impedance.
  • the housing may have an opening for ultrasonically connecting the signal line to the connection portion, and at least a part of the cavity may be formed by the opening.
  • the opening for ultrasonic bonding contributes to both suppression of change in characteristic impedance and improvement in workability of ultrasonic bonding. Therefore, both workability of connection of the signal line and suppression of change in characteristic impedance can be more reliably achieved.
  • the distance from the ground contact conductor may change along the direction connecting the contact part and the connection part.
  • the change in the characteristic impedance from the connecting portion to the contact portion is suppressed by the change in the distance between the intermediate portion and the ground contact conductor. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
  • the middle part may have a convex part whose distance to the ground contact conductor is shorter than the base part of the contact part. In this case, the characteristic impedance change from the connecting portion to the contact portion can be suppressed by using the convex portion, and the stability can be improved.
  • the middle part may have a recess whose distance to the ground contact conductor is longer than that of the base of the contact part. In this case, it is possible to suppress the change in the characteristic impedance from the connecting portion to the contact portion by utilizing the recess, and it is possible to improve the stability.
  • connection part may have a connection main surface for connecting the signal line
  • the intermediate part has an intermediate main surface continuous with the connection main surface
  • the signal contact conductor has the connection main surface on the intermediate main surface.
  • FIG. 1 is a perspective view of a connector assembly according to an embodiment of the present disclosure.
  • 2 is a perspective view of the receptacle connector included in the connector assembly of FIG.
  • FIG. 3 is a cross-sectional view of the receptacle connector of FIG. 2 taken along the line III-III.
  • FIG. 4 is a perspective view of the ground contact conductor included in the receptacle connector.
  • 5A and 5B are views showing a signal contact conductor included in the receptacle connector.
  • FIG. 5A is a perspective view
  • FIG. 5B is a right side view
  • FIG. 5C is a left side view.
  • FIG. 6 is a perspective view of a plug connector included in the connector assembly of FIG. FIG.
  • FIG. 7 is a sectional view of the plug connector of FIG. 6 taken along line VII-VII.
  • FIG. 8 is a bottom view of the plug connector of FIG.
  • FIG. 9 is a perspective view of a signal contact conductor included in the plug connector.
  • FIG. 10 is a perspective view of a housing included in the plug connector. 11 is a bottom view of the housing of FIG.
  • FIG. 12 is a view for explaining the fitting state of the connector assembly, which is a cross-sectional view taken along the line XII-XII in FIG.
  • FIG. 13 is a sectional view of a plug connector according to a modification.
  • FIG. 14 is a perspective view of a signal contact conductor included in the plug connector according to the modification.
  • FIG. 14 is a perspective view of a signal contact conductor included in the plug connector according to the modification.
  • FIG. 15 is a perspective view of a signal contact conductor included in the plug connector according to the modification.
  • FIG. 16 is a perspective view of a signal contact conductor included in the plug connector according to the modification.
  • FIG. 17 is a perspective view of a signal contact conductor included in the plug connector according to the modification.
  • FIG. 18 is a perspective view of a signal contact conductor included in the plug connector according to the modification.
  • FIG. 19 is a perspective view of a signal contact conductor included in the plug connector according to the modification.
  • the connector assembly 1 includes a receptacle connector 2 and a plug connector 3.
  • the connector assembly 1 is a connector that electrically connects a cable-shaped signal transmission medium to an electric circuit of a wiring board, and is, for example, an RF (Radio Frequency) connector.
  • the signal transmission medium is a medium that transmits signals of various electronic devices such as a mobile phone, and is, for example, a coaxial cable SC.
  • the wiring board is, for example, the printed wiring board PB. That is, the connector assembly 1 of the present embodiment is a coaxial connector that electrically connects the coaxial cable SC to the electric circuit of the printed wiring board PB.
  • the plug connector 3 attached to the terminal portion of the coaxial cable SC is fitted to the receptacle connector 2 mounted on the printed wiring board PB, whereby the coaxial cable SC and the printed wiring board PB are connected. It is electrically connected to an electric circuit (details will be described later).
  • the axial direction of the coaxial cable SC is the “X direction”
  • the mating direction of the receptacle connector 2 and the plug connector 3 when the receptacle connector 2 and the plug connector 3 are mated is the “Z direction”.
  • the direction orthogonal to the X and Z directions may be described as the “Y direction”.
  • the plug connector 3 side in the state shown in FIG. 1 may be described as “upper” and the receptacle connector 2 side as “lower”, for example.
  • an end portion of the coaxial cable SC where the plug connector 3 is attached is referred to as a “front end” and an opposite end portion is referred to as a “rear end (base end)”. There is.
  • the receptacle connector 2 has a ground contact conductor 10, a signal contact conductor 20, and a housing 30.
  • the receptacle connector 2 is mounted on the printed wiring board PB (see FIG. 1) by, for example, soldering.
  • the ground contact conductor 10 is a member for grounding formed of, for example, a thin plate-shaped metal member.
  • the ground contact conductor 10 is arranged so as to surround a contact portion 21 (details will be described later) of the signal contact conductor 20.
  • the ground contact conductor 10 includes a ground main body 11 (main body) formed in a cylindrical shape (cylindrical shape), and one end of the ground main body 11 in the Z direction (see FIG. 4 has an external terminal portion 12 extending outward from the lower end).
  • the gland body 11 is a cylindrical member and extends along the central axis C in the vertical direction (Z direction). That is, the central axis C direction of the ground main body 11 corresponds to the vertical direction (Z direction).
  • the ground main body 11 is connected to a ground contact conductor (described later) of the plug connector 3 from the other edge (upper end in FIG. 4) in the Z direction.
  • a groove 11a used for fitting with the plug connector 3 is provided on the outer peripheral surface of the gland body 11 along the circumferential direction.
  • the external terminal portion 12 is a flat plate-shaped member extending in the horizontal direction (XY direction) as shown in FIG.
  • the external terminal portion 12 extends outward from the lower end portion of the ground body portion 11.
  • the external terminal portion 12 is configured to include a pair of terminal portions 121 and 122 provided so as to face each other in the Y direction with the central axis C of the ground main body portion 11 extending in the vertical direction interposed therebetween.
  • Each of the pair of terminal portions 121 and 122 projects outward so as to be separated from the central axis C.
  • the terminal portions 121 and 122 have substantially the same rectangular shape and are connected to the lower end of the ground main body portion 11 so that their longitudinal directions are along the X direction while being separated from each other with the central axis C therebetween.
  • the facing surface 121a of the terminal portion 121 that faces the terminal portion 122 and the facing surface 122a of the terminal portion 122 that faces the terminal portion 121 extend in the X direction below the ground main body portion 11, respectively. ..
  • a space S1 extending along the longitudinal direction (X direction) of the terminal portions 121 and 122 is formed between the facing surface 121a and the facing surface 122a.
  • the space S1 serves as a housing 30 which will be described later. Filled by members.
  • the facing surface 121a of the terminal portion 121 extends substantially in the vertical direction (Z direction), and an inclined portion 121b that is inclined with respect to the vertical direction is formed in a part thereof.
  • the inclined portion 121b is inclined so that a part of the facing surface 121a of the terminal portion 121 is cut out to the upper surface 121u side.
  • the opposed surface 122a of the terminal portion 122 is also formed with an inclined portion 122b that is inclined with respect to the vertical direction in a part thereof.
  • the inclined portion 122b is inclined so that a part of the facing surface 122a of the terminal portion 122 is cut out toward the upper surface 122u.
  • the above ground contact conductor 10 can be manufactured, for example, by pressing and bending a thin plate-shaped metal material, but it may be manufactured by a method different from them. Further, the ground contact conductor 10 is soldered to a ground conductive path (not shown) for ground connection formed on the printed wiring board PB (see FIG. 1).
  • the signal contact conductor 20 is a signal transmission conductor formed of, for example, a thin plate-shaped metal member.
  • the signal contact conductor 20 extends outward from a contact portion 21 formed in a cylindrical shape and a lower end which is one end edge of the contact portion 21 in the Z direction. And a conductor portion 22.
  • the contact portion 21 has a substantially cylindrical shape and extends in the vertical direction (Z direction) along the central axis C.
  • the outer diameter of the contact portion 21 is smaller than the inner diameter of the ground body portion 11 of the ground contact conductor 10.
  • the contact portion 21 has a slit 211 extending along the extending direction of the central axis C (vertical direction: Z direction).
  • the slits 211 extend to both ends of the tubular contact portion 21 in the Z direction. Therefore, the contact portion 21 has a substantially C-shape having the slit 211 in a plan view along a plane orthogonal to the central axis C.
  • the contact portion 21 is connected to a signal contact conductor (described later) of the plug connector 3 from the other end edge (upper end in FIG. 5).
  • the conductor 22 is formed in a flat plate shape extending in the horizontal direction (XY direction).
  • the conductor portion 22 extends outward from the lower end portion of the contact portion 21, that is, in the direction away from the central axis C.
  • the conductive wire portion 22 extends in the ⁇ X direction with respect to the central axis C such that the X direction is the longitudinal direction.
  • the extending direction of the main surface of the conductor portion 22 is the horizontal direction, but it is not limited to the horizontal direction as long as it is a direction intersecting at least the central axis C.
  • a first region 221, a second region 222, and a third region 223 are arranged in this order from the portion near the contact portion 21 along the extending direction (X direction).
  • the first area 221 is an area connected to the contact portion 21.
  • the third region 223 is a region that includes an end portion of the conductive wire portion 22 that is opposite to the end portion near the contact portion 21.
  • the second area 222 is an area sandwiched between the first area 221 and the third area 223.
  • the width (length along the Y direction) of the conductive wire portion 22 changes depending on the position in the extending direction of the longitudinal direction. Specifically, the widths of the first region 221, the second region 222, and the third region 223 are different from each other in the adjacent regions. Specifically, the first region 221 and the third region 223 have narrower widths than the second region 222.
  • the first region 221 has two regions 221a and 221b having different widths in order from the side closer to the contact portion 21.
  • the region 221a is a region narrower in width than the region 221b, and is the smallest narrowest part in the conductor portion 22.
  • the second region 222 includes the widest maximum portion of the conductive wire portion 22. As shown in FIG.
  • the width of the conductor portion 22 is gradually reduced. Further, the width of the conductive wire portion 22 also decreases from the widest maximum portion of the second region 222 toward the third region 223.
  • the change in width depending on the position in the lengthwise extending direction of the conductor portion 22 makes it possible to suppress a decrease in the characteristic impedance of the receptacle connector 2.
  • impedance matching in the connector is required.
  • the characteristic impedance of each part changes depending on the shape of the ground contact conductor 10, the shape of the signal contact conductor 20, and the distance between the ground contact conductor 10 and the signal contact conductor 20.
  • the characteristic impedance can be adjusted more suitably by changing the width.
  • the change in the width of the conductive wire portion 22 along the longitudinal direction (X direction) may be stepwise.
  • the conductive wire portion 22 may be tapered and the width may be gradually increased. It may be configured to change.
  • a through hole 225 is provided in the second area 222 of the conductor portion 22. As shown in FIG. 5A, the through hole 225 extends along the extending direction (X direction) of the conductor portion 22. Further, the through hole 225 has a region 225a having a small hole diameter near the center along the extending direction. However, the shape of the through hole 225 is not particularly limited. The width (length along the Y direction) of the through hole 225 can be set to about 30% to 70% with respect to the width of the maximum portion in the second region 222, but can be appropriately changed. It should be noted that a part of the housing 30 described later enters the inside of the through hole 225.
  • the through hole 225 is provided at a position overlapping the ground main body portion 11 of the ground contact conductor 10 when viewed from the direction along the central axis C (see FIG. 3 ). This suppresses the decrease in the characteristic impedance of the receptacle connector 2.
  • the contact portion 21 and the conductive wire portion 22 are connected to each other by providing the first region 221 of the conductive wire portion 22 to the lower edge ( ⁇ Z side) of the contact portion 21.
  • the connecting portion 212 of the contact portion 21 with the conducting wire portion 22 two cutout portions 213 are provided so as to sandwich the connecting portion 212.
  • the lower surface 21s of the contact portion 21 and the lower surface 22s of the conductor portion 22 are formed so as to be in the same plane (XY plane) as shown in FIGS. 3 and 5C.
  • the cutout portion 213 defines the inside and outside of the contact portion 21 above the height position where the lower end face is provided in the vertical direction (Z direction) of the contact portion 21 and the conductor portion 22. The opening which connects is formed.
  • the above-mentioned signal contact conductor 20 can be formed by bending a metal plate, for example.
  • a metal plate having a shape corresponding to the signal contact conductor 20 is prepared, the metal plate is bent at the connection portion 212 between the conductor portion 22 and the contact portion 21, and the region to be the contact portion 21 is bent into a cylindrical shape.
  • the signal contact conductor 20 can be obtained.
  • the signal contact conductor 20 is arranged so that the contact portion 21 of the signal contact conductor 20 is inside the ground main body portion 11 of the ground contact conductor 10.
  • the conductor portion 22 connected to the contact portion 21 of the signal contact conductor 20 is provided in the space S1 provided between the terminal portions 121 and 122 of the ground contact conductor 10 and extending along the longitudinal direction (X direction). Will be placed.
  • the lower surfaces 121s and 122s of the terminal portions 121 and 122 of the ground contact conductor 10 the lower surface 21s of the contact portion 21 of the signal contact conductor 20, and the lower surface 22s of the conductor portion 22 of the signal contact conductor 20 are flush with each other ( XY plane).
  • the shapes of the contact portion 21 and the conductor portion 22 can be changed respectively. Further, the contact portion 21 and the conductive wire portion 22 do not have to be made of one metal plate, and may be configured by combining a plurality of members.
  • the housing 30 serves as an insulating member placed on the printed wiring board PB.
  • the housing 30 is provided so as to fill the space S1 provided between the terminal portions 121 and 122 included in the external terminal portion 12 of the ground contact conductor 10.
  • the upper surface 30u of the housing 30 provided between the terminal portions 121 and 122 is substantially flush with the upper surfaces 121u and 122u of the terminal portions 121 and 122
  • the lower surface 30s of the housing 30 is The lower surfaces 121s and 122s of the terminal portions 121 and 122 are substantially flush with the lower surface.
  • the housing 30 is also connected to the lower end of the ground body 11 of the ground contact conductor 10. As a result, both the ground body portion 11 and the external terminal portion 12 of the ground contact conductor 10 are connected to the housing 30. Further, the housing 30 is connected to the inclined portions 121b and 122b provided on the facing surfaces 121a and 122a of the terminal portions 121 and 122, respectively. As a result, the contact area between the housing 30 and the terminals 121 and 122 is increased, and the adhesion between the housing 30 and the ground contact conductor 10 is improved.
  • the housing 30 is provided so as to contact the lower end of the contact portion 21 of the signal contact conductor 20 and to fill the periphery of the conductor portion 22 except the lower surface 22s. Has been. At this time, part of the housing 30 also enters the through hole 225 provided in the second region 222 of the conductor portion 22 and fills the through hole 225. As a result, the adhesion between the housing 30 and the signal contact conductor 20 is improved.
  • the end of the conductor portion 22 of the signal contact conductor 20 opposite to the contact portion 21, that is, the end of the third region 223 is not covered with the housing 30 and is exposed to the outside.
  • the housing 30 is formed inside the contact portion 21 and also outside the contact portion 21 and inside the ground main body portion 11.
  • the housing 30 is provided so as to cover the periphery of the connecting portion 212 with the contact portion 21 and the lower end of the contact portion 21.
  • the upper surface 31u of the housing 30 inside the ground body 11 of the ground contact conductor 10 and outside the contact portion 21 is the same as the upper surface 30u of the housing 30 provided between the terminals 121 and 122. It is almost the same.
  • the upper surface 32u of the housing 30 inside the contact portion 21 is lower in position (height) from the lower surface 30S in the vertical direction (Z direction) than the upper surfaces 30u and 31u.
  • the height of the upper surface 32u is located closer to the bottom surface (lower surface 30s) of the housing 30 facing the printed wiring board PB than the height of the upper surfaces 30u and 31u. ..
  • the insulating material remains particularly on the outer peripheral surface of the contact portion 21, and the mating connector It is possible to prevent a decrease in electrical connectivity when connecting with.
  • a part of the upper surface 31u of the housing 30 inside the ground main body 11 and outside the contact portion 21 of the ground contact conductor 10 has a position of a height higher than the upper surface 31u.
  • the recess 33 is formed in a region surrounding the slit 211 provided in the contact portion 21 of the signal contact conductor 20 and continuous with the slit 211. Further, the height of the surface of the recess 33 is the same as the height of the upper surface 32u of the housing 30 inside the contact portion 21.
  • the shape and size of the recess 33 are not particularly limited.
  • the height of the surface of the housing 30 around the slit 211 outside the contact portion 21 is substantially the same as the height of the upper surface 32u of the housing 30 inside the contact portion 21, so that the recess 33 is formed.
  • the shape and size can be set. It is to be noted that the fact that the heights are the same is not limited to the case where they are exactly the same, and the difference in height between the upper surface 32u and the recess 33 is smaller than the difference in height between the upper surface 31u and the upper surface 32u. Including cases.
  • ground contact conductor 10 and the signal contact conductor 20 are prepared.
  • the ground contact conductor 10 and the signal contact conductor 20 can be produced by, for example, pressing and bending a plate material made of a metal material.
  • an insulating material for example, an insulating resin
  • the housing 30 is formed by insert molding, and thus the receptacle connector 2 in which the ground contact conductor 10, the signal contact conductor 20, and the housing 30 are integrally molded can be manufactured.
  • the insulating material injected into the mold fills the void S1 between the terminal portions 121 and 122 of the ground contact conductor 10 and penetrates the conductor wire portion 22 of the signal contact conductor 20 arranged in the void S1. It also goes into the hole 225. Further, the signal contact conductor 20 also enters the inside of the contact portion 21 via the cutout portion 213 provided below the contact portion 21. As a result, the insulating material inside the contact portion 21 and the insulating material outside the contact portion 21 are molded in an integrated state.
  • the receptacle connector 2 When the receptacle connector 2 is manufactured, after the signal contact conductor 20 is set in the mold and the insulating material is injected, outside the slit 211 of the signal contact conductor 20, specifically, the recess 33 in the housing 30. The component in the mold can be brought into contact with the area. With such a configuration, the signal contact conductor 20 can be accurately positioned. Further, the injected insulating material is prevented from leaking from the position where the mold is in contact.
  • the plug connector 3 includes a signal contact conductor 40, a ground contact conductor 60, and an insulating housing 50.
  • the plug connector 3 is attached to the terminal portion TP of the coaxial cable SC.
  • the coaxial cable SC is provided in a small terminal such as a mobile phone in order to transmit a high frequency signal between various signal processing elements (for example, an antenna, a control chip for controlling the antenna, a substrate, etc.) incorporated in the small terminal. Wiring used in. As shown in FIG. 7, the coaxial cable SC is interposed between the signal line SC1 made of a conductor, the shield line SC3 made of a conductor provided around the signal line SC1, and the signal line SC1 and the shield line SC3. And a dielectric layer SC2 that covers the shield line SC3.
  • the plug connector 3 is attached to the terminal portion TP where the signal line SC1 and the shield line SC3 are partially exposed. More specifically, the plug connector 3 removes the insulating coating SC4, the shield line SC3, and the dielectric layer SC2 so that the exposed portion of the signal line SC1 and the exposed portion of the shield line SC3 are arranged in order from the tip. It is attached to the processed terminal portion TP.
  • the signal contact conductor 40 is electrically connected to the signal line SC1
  • the ground contact conductor 60 is electrically connected to the shield line SC3
  • the housing 50 is connected to the signal contact conductor 40 and the ground contact conductor 60. Intervenes between.
  • the plug connector 3 attached to the terminal portion TP is connected to the receptacle connector 2 mounted on the printed wiring board PB. Specifically, the plug connector 3 is attached to the receptacle connector 2 along the thickness direction (Z direction) of the printed wiring board PB.
  • the signal contact conductor 40 is electrically connected to the signal contact conductor 20 of the receptacle connector 2
  • the ground contact conductor 60 is electrically connected to the ground contact conductor 10 of the receptacle connector 2.
  • the plug connector 3 mounted on the receptacle connector 2 is removable from the receptacle connector 2 along the thickness direction (Z direction) of the printed wiring board PB.
  • the ground contact conductor 60 is made of, for example, a thin plate-shaped metal material, and has a first portion 60A, a second portion 60B, and a connecting portion 60C.
  • the first portion 60A has a fitting portion 61 and two arm portions 62.
  • the fitting portion 61 is fitted to the ground contact conductor 10 of the receptacle connector 2.
  • the fitting portion 61 has a tubular shape (cylindrical shape) and fits on the outer circumference of the ground main body 11.
  • the central axis of the fitting portion 61 is substantially orthogonal to the axial direction of the coaxial cable SC.
  • a narrowed portion 611 having a partially reduced inner diameter is formed at one end (hereinafter referred to as “tip”) in the central axis direction of the fitting portion 61.
  • the narrowed portion 611 fits into the groove 11a of the ground main body portion 11 of the ground contact conductor 10 of the receptacle connector 2 (see FIG. 12).
  • a plurality of notches 612 arranged in the circumferential direction of the fitting portion 61 are formed at the other end (hereinafter referred to as “base end”) of the fitting portion 61 in the central axis direction. ..
  • Plural convex portions 512 (described later) of the housing 50 are fitted into the plural notch portions 612, respectively.
  • the "cylindrical shape” is not necessarily limited to the cylindrical shape.
  • the “cylindrical shape” may be a polygonal cylindrical shape.
  • the “cylindrical shape” includes a semi-cylindrical shape with a part cut out in the circumferential direction.
  • the fitting portion 61 has a semi-cylindrical shape in which a portion near the coaxial cable SC is cut out.
  • the two arm portions 62 are respectively connected to both ends of the fitting portion 61 in the circumferential direction, and extend toward the outside of the fitting portion 61 while facing each other. Both of the two arm portions 62 are along the axial direction of the coaxial cable SC.
  • the second portion 60B has a lid portion 63, a clamp portion 64, and a barrel portion 65.
  • the lid portion 63 closes the base end of the fitting portion 61 without overlapping the outer peripheral surface of the fitting portion 61.
  • the lid portion 63 is substantially flat plate-shaped over the entire area, and no folding or the like overlapping the fitting portion 61 is formed on the peripheral portion thereof.
  • a surface of the lid portion 63 that faces the base end of the fitting portion 61 is referred to as an “inner surface”, and a surface opposite to the inner surface is referred to as an “outer surface”.
  • the clamp portion 64 holds and shields a portion of the terminal portion TP of the coaxial cable SC from which the insulating coating SC4 has been removed (hereinafter referred to as “holding portion of the terminal portion TP”). Touch line SC3.
  • the clamp portion 64 is aligned with the fitting portion 61 along the axial direction of the coaxial cable SC.
  • the clamp part 64 includes a clamp base 641 and two clamp arms 642 as shown in FIG.
  • the clamp base 641 is a plate-shaped portion that is continuous with the lid 63. It should be noted that the term “being connected” here includes not only the case of being directly connected but also the case of being connected through another portion.
  • the two clamp arms 642 are connected to both side surfaces of the clamp base 641 along the axial direction of the coaxial cable SC, and project from the inner surface of the clamp base 641 (the surface connected to the inner surface of the lid 63).
  • the two clamp arms 642 face each other with the holding target portion of the terminal portion TP interposed therebetween, and are bent so as to wrap the holding target portion of the terminal portion TP between the clamp base 641 and the shield wire SC3. ing.
  • the clamp portion 64 is located at the farthest end from the fitting portion 61 in the ground contact conductor 60. More specifically, in the ground contact conductor 60, the two clamp arms 642 are located at the farthest end from the central axis of the fitting portion 61. In other words, the ground contact conductor 60 does not have a portion that comes into contact with the insulating coating SC4 at a position farther from the central axis of the fitting portion 61 than the two clamp arms 642.
  • the barrel portion 65 holds the housing 50 between the fitting portion 61 and the clamp portion 64. As will be described later, the housing 50 has a first portion 51 housed in the fitting portion 61 and a second portion 52 arranged between the two arm portions 62. The barrel portion 65 holds the second portion 52 together with the two arm portions 62.
  • the barrel portion 65 includes a barrel base 651 and two barrel arms 652.
  • the barrel base 651 is a plate-shaped portion that is interposed between the lid portion 63 and the clamp base 641 and connects them.
  • the two barrel arms 652 are respectively connected to both side surfaces of the peripheral edge of the barrel base 651 along the axial direction of the coaxial cable SC, and project from the inner surface of the barrel base 651 (the surface connected to the inner surface of the lid 63).
  • the two barrel arms 652 face each other with the two arm portions 62 and the second portion 52 interposed therebetween, and are bent so as to wrap the two arm portions 62 and the second portion 52 between the barrel base 651.
  • a portion between the bent portion and the barrel base 651 is referred to as a “base portion of the barrel arm 652”
  • a tip side of the bent portion is referred to as a “tip portion of the barrel arm 652”. ..
  • a contact claw portion 654 that protrudes inward is formed at the base of the barrel arm 652.
  • the contact claw portion 654 presses the arm portion 62 toward the second portion 52. This strengthens the electrical connection between the barrel portion 65 and the arm portion 62.
  • the length of the barrel portion 65 (width of the barrel arm 652) in the axial direction of the coaxial cable SC may be set so that a gap GP1 is formed between the housing 50 and the clamp portion 64.
  • the arm portion 62 may be configured to further hold the dielectric layer SC2 and the shield line SC3 between the housing 50 and the clamp portion 64 (gap GP1).
  • the ground contact conductor 60 may further include a holding claw portion 653.
  • the holding claw portion 653 protrudes inward from the barrel portion 65 between the housing 50 and the clamp portion 64 and presses the shield wire SC3 toward the dielectric layer SC2.
  • the holding claw portion 653 may be located closer to the clamp portion 64 between the housing 50 and the clamp portion 64.
  • the distance from the clamp part 64 to the holding claw 653 may be smaller than the distance from the housing 50 to the holding claw 653.
  • the holding claw portion 653 is formed at the tip of each barrel arm 652 (close to the base end of the coaxial cable SC).
  • the ground contact conductor 60 may have a gap GP2 between the fitting portion 61 and the barrel portion 65 (that is, between the fitting portion 61 and the barrel arm 652). Further, the ground contact conductor 60 may have a gap GP3 between the barrel portion 65 and the clamp portion 64 (that is, between the barrel arm 652 and the clamp arm 642).
  • the connecting portion 60C connects the first portion 60A and the second portion 60B.
  • the connecting portion 60C connects the base end of the fitting portion 61 and the lid 63 at the end portion in the extending direction ( ⁇ X direction) of the coaxial cable SC.
  • the connecting portion 60C connects the first portion 60A and the second portion 60B with the lid 63 along the central axis of the fitting portion 61.
  • the connecting portion 60C is bent at a substantially right angle so that the lid portion 63 is orthogonal to the central axis of the fitting portion 61 and closes the base end of the fitting portion 61.
  • the signal contact conductor 40 is formed of, for example, a metal member on a thin plate, and is housed in the ground contact conductor 60. As shown in FIGS. 7 to 9, the signal contact conductor 40 has a contact portion 41, a connection portion 42, an intermediate portion 43, and extension portions 44 and 45. The contact portion 41 is located inside the fitting portion 61 and contacts the signal contact conductor 20 of the receptacle connector 2.
  • the contact part 41 includes a contact base 411 and two contact arms 412.
  • the contact base 411 is arranged so as to be substantially orthogonal to the central axis of the fitting portion 61.
  • the two contact arms 412 are connected to both side surfaces of the contact base 411 along the axial direction of the coaxial cable SC, and project toward the tip of the fitting portion 61.
  • the two contact arms 412 face each other, and sandwich the contact portion 21 of the signal contact conductor 20 with the fitting portion 61 fitted to the ground main body portion 11 of the ground contact conductor 10 in the receptacle connector 2 (see FIG. 12). ).
  • the connecting portion 42 is located inside the space surrounded by the barrel portion 65 and is connected to the signal line SC1.
  • the connecting portion 42 is a flat plate-shaped portion arranged perpendicular to the central axis of the fitting portion 61. As shown in FIG. 7, the connecting portion 42 has a first main surface 421 facing the barrel base 651 of the barrel portion 65 and a second main surface 422 opposite to the first main surface 421.
  • the signal line SC1 is connected to the first main surface 421 (connection main surface). Specific examples of the method of connecting the signal line SC1 include soldering, caulking, ultrasonic bonding, and the like. As an example, the signal line SC1 is connected to the first main surface 421 by ultrasonic bonding.
  • the intermediate portion 43 is a flat plate-shaped portion that connects the contact base 411 of the contact portion 41 and the connecting portion 42. As shown in FIG. 7, the intermediate portion 43 has a first main surface 431 facing the lid portion 63 and the barrel base 651, and a second main surface 432 opposite to the first main surface 431. The first main surface 431 (intermediate main surface) is continuous with the first main surface 421, and the second main surface 432 is continuous with the second main surface 422.
  • the intermediate portion 43 extends from the inside of the fitting portion 61 to the inside of the barrel portion 65, that is, in the direction connecting the contact portion 41 and the connecting portion 42, and connects the contact base 411 and the connecting portion 42.
  • the width of the intermediate portion 43 changes according to the position in the direction (X direction) connecting the contact portion 41 and the connecting portion 42.
  • the width here means the length in the direction (Y direction) orthogonal to the axial direction of the coaxial cable SC.
  • the width of the intermediate portion 43 is set so as to suppress the characteristic impedance change between the signal contact conductor 40 and the ground contact conductor 60 depending on the position in the direction (X direction) connecting the contact portion 41 and the connection portion 42. ing.
  • the width of the intermediate portion 43 is constant, the characteristic impedance between the intermediate portion 43 and the ground contact conductor 60 changes according to the position in the direction (X direction) connecting the contact portion 41 and the connecting portion 42. For example, the characteristic impedance is low at a position close to the ground contact conductor 60.
  • the characteristic impedance is low even at a position surrounded by more metal of the ground contact conductor 60.
  • the width of the intermediate portion 43 is larger than at the position where the characteristic impedance is high.
  • the ground contact conductor 60 that surrounds the intermediate portion 43 as compared with the inside of the space surrounded by the barrel portion 65 and the like.
  • Has a small amount of metal for example, the amount of metal per unit length (because the barrel arm 652 does not exist). Therefore, in the portion of the intermediate portion 43 located in the gap GP2, the widened portion 433 having a larger width than both of the portion of the intermediate portion 43 located in the barrel portion 65 and the portion of the intermediate portion 43 located in the fitting portion 61 is provided. It is provided.
  • the width of the connecting portion 42 is larger than the width of the intermediate portion 43.
  • the width of the connecting portion 42 may be at least larger than the average value of the width of the intermediate portion 43, and may be larger than the maximum value of the width of the intermediate portion 43 (for example, the width of the widening portion 433).
  • the maximum value of the width of the intermediate portion 43 for example, the width of the widening portion 433.
  • the edge 412a of the contact arm 412 close to the connecting portion 42 is set as the boundary between the contact portion 41 and the intermediate portion 43 (see FIG. 9). Further, the edge 42a near the contact portion 41 in the portion having the same width as the portion to which the signal line SC1 is connected is defined as the boundary between the intermediate portion 43 and the connecting portion 42.
  • the portion having the same width includes a portion having chamfered corners.
  • the boundary portion between the intermediate portion 43 and the connection portion 42 (a portion near the boundary) so that the first main surface 421 (connection main surface) is recessed with respect to the first main surface 431 (intermediate main surface). May be bent at.
  • the extension portion 44 is a flat plate-shaped portion that projects in a direction opposite to the direction from the contact base 411 to the intermediate portion 43.
  • the extension portion 45 is a flat plate-shaped portion that projects in a direction opposite to the direction from the connection portion 42 toward the intermediate portion 43.
  • the extension parts 44 and 45 function as a holding allowance by the housing 50.
  • the housing 50 holds the signal contact conductor 40 and is accommodated in the ground contact conductor 60.
  • the housing 50 has a first portion 51 and a second portion 52.
  • the first portion 51 is housed in the fitting portion 61 and holds the contact portion 41 and a part of the intermediate portion 43 near the contact portion 41.
  • the first portion 51 has a recess 511 for exposing the contact portion 41 toward the tip of the fitting portion 61.
  • the contact portion 41 can be brought into contact with the contact portion 21 of the signal contact conductor 20 of the receptacle connector 2.
  • the outer diameter of the tip portion of the first portion 51 is smaller than the inner diameter of the fitting portion 61.
  • the ground main body 11 of the ground contact conductor 10 can be introduced between the fitting portion 61 and the first portion 51.
  • the second portion 52 projects from the first portion 51 in a direction in which the two arm portions 62 extend (X direction), and holds the connection portion 42 and a part of the intermediate portion 43 located near the connection portion 42. To do. As described above, at least a part of the second portion 52 is held by the barrel portion 65 together with the two arm portions 62.
  • the second portion 52 may be configured to form a cavity between the connecting portion 42 and the ground contact conductor 60.
  • the second portion 52 may have an opening for ultrasonically connecting the signal line to the connecting portion 42, and at least a part of the cavity may be formed by the opening.
  • the second portion 52 may have openings on both the first main surface 421 side and the opposite side of the first main surface 421.
  • the opening here means an opening that exposes at least a part of the first main surface 421 or the second main surface 422 of the connection portion 42 to the outside of the housing 50.
  • the second portion 52 has a recess 521 that exposes the first main surface 421 toward the barrel base 651 (see FIG. 10).
  • the opening OP1 that exposes a part of the first main surface 421 to the outside of the housing 50 is formed in the second portion 52 (see FIG. 7).
  • the concave portion 521 is also opened in the second portion 52 on the opposite side of the first portion 51 (close to the proximal end of the coaxial cable SC).
  • the opening OP1 is used to press the signal line SC1 against the first main surface 421 with a tool for ultrasonic bonding.
  • the opening OP1 defines a cavity CC1 between the first main surface 421 and the barrel base 651.
  • a through hole 523 for exposing the second main surface 422 toward the tip portion of the arm portion 62 is formed in a portion of the second portion 52 that constitutes the bottom surface of the recess 521 (see FIG. 11 ). ..
  • the second portion 52 has an opening OP2 that exposes a part of the second main surface 422 to the outside of the housing 50.
  • the opening OP2 is used to press the tool for supporting the connecting portion 42 against the second main surface 422 from the opposite side of the ultrasonic welding tool.
  • the opening OP2 defines a cavity CC2 between the second main surface 422 and the tip of the barrel arm 652.
  • a plurality of convex portions 512 arranged in the circumferential direction are provided on the outer periphery of the base end portion of the first portion 51 (portion on the base end side of the fitting portion 61).
  • the plurality of convex portions 512 are fitted into the plurality of cutout portions 612 of the fitting portion 61 (see FIG. 6 ).
  • the convex portion 512 fitted in the cutout portion 612 may project outward from the peripheral edge of the lid portion 63 (see FIG. 12 ).
  • the protruding amount of the lid portion 63 with respect to the outer circumference of the fitting portion 61 may be smaller than the protruding amount of the convex portion 512 with respect to the outer circumference of the fitting portion 61.
  • the signal contact conductor 40 is prepared, the signal contact conductor 40 is set in a mold, and then an insulating material (for example, an insulating resin) is injected into the mold to be cooled and solidified. That is, the housing 50 is formed by insert molding while holding the signal contact conductor 40.
  • the ground contact conductor 60 is prepared, and the housing 50 is set in the ground contact conductor 60 by fitting the plurality of convex portions 512 into the plurality of cutout portions 612 of the fitting portion 61, respectively.
  • the signal contact conductor 40 and the ground contact conductor 60 can be formed by punching a metal member having a predetermined shape from a thin metal plate and subjecting the metal member to plastic working such as bending. As described above, the ground contact conductor 60 is in a state in which the first portion 60A and the second portion 60B are connected by the connecting portion 60C with the lid portion 63 along the central axis of the fitting portion 61. There is. Further, neither the two barrel arms 652 nor the two clamp arms 642 are bent.
  • the signal line SC1 is ultrasonically bonded to the first main surface 421 of the connecting portion 42.
  • a tool for supporting the connecting portion 42 is inserted into the opening OP2 and pressed against the second main surface 422, and a tool for ultrasonic bonding is inserted into the opening OP1 to connect the signal line SC1 to the first main surface. Press on the surface 421.
  • ultrasonic waves are applied to the signal line SC1 by an ultrasonic bonding tool to cause melting of the plating or the like to bond the signal line SC1 to the first main surface 421.
  • the connecting portion 60C is bent and the lid 63 closes the base end of the fitting portion 61.
  • the two arm portions 62 and the second portion 52 of the housing 50 are accommodated in the two barrel arms 652, and the holding target portion of the terminal portion TP is accommodated in the two clamp arms 642.
  • the two clamp arms 642 are bent so that the holding target portion of the terminal portion TP is wrapped between the clamp base 641 and the two arm portions 62 and the second portion 52 are wrapped between the barrel base 651. Bend the two barrel arms 652. This completes the assembly process of the plug connector 3.
  • the ground contact conductor 10 includes a cylindrical ground main body 11 extending along a central axis C that is a predetermined axis, and a central body C of the ground main body 11 in the direction of the central axis C. And an external terminal portion 12 provided at one of the end edges. Further, in the receptacle connector 2, the signal contact conductor 20 extends inwardly of the ground body 11 in the direction of the central axis C, and contacts with the signal contact conductor of the plug connector 3 (contact conductor of the mating connector) 21.
  • the conductive wire portion 22 has a pair of main surfaces that intersect and extend in the central axis C direction, and the width thereof changes depending on the position in the extending direction. In the high frequency range, highly accurate impedance matching in the connector is required.
  • the characteristic impedance can be finely adjusted and the change in the characteristic impedance can be reduced. .. Further, since the pair of main surfaces intersects and extends in the axial direction, the height reduction of the receptacle connector 2 is realized. Then, the characteristic impedance can be suitably adjusted by changing the width of the conductive wire portion 22 extending in the axial direction so that the pair of main surfaces intersects with each other in the axial direction.
  • a region 221a that is the smallest portion having the smallest width of the conductor portion 22 is provided at a position closest to the contact portion 21 of the conductor portion 22, and the conductor portion 22 is located at a position apart from the smallest portion in the extending direction. Is provided with a second region 222 including the maximum portion having the maximum width.
  • the width of the conductive wire portion 22 gradually increases from the minimum portion to the maximum portion.
  • the width of the conductor portion 22 in the area as described above it is possible to reduce the change in the characteristic impedance with respect to the contact portion 21. Further, the maximum portion where the width of the conductor portion 22 is maximum is provided separately from the minimum portion, and the width is gradually changed, so that the change of the characteristic impedance due to the change of the width of the conductor portion 22 is reduced. You can Note that the change in width for achieving the above effect may be stepwise or gradual.
  • a through hole 225 is provided in the largest part of the above-mentioned conducting wire portion 22, and a part of the housing 30 is inserted inside the through hole 225. It is conceivable that the characteristic impedance may be reduced in the wide area of the conductor portion 22. On the other hand, since the through hole 225 is provided in the widest maximum portion, the decrease in the characteristic impedance in the region is suppressed. Furthermore, since a part of the housing 30 is inserted inside the through hole 225, the adhesion between the housing 30 and the signal contact conductor 20 is enhanced.
  • the through hole 225 is provided at a position overlapping the ground body 11 of the ground contact conductor 10 when viewed from the central axis C direction. Since the position where the ground main body portion 11 of the ground contact conductor 10 and the conductor wire portion 22 of the signal contact conductor 20 overlap each other is a region in which they are close to each other, there is a possibility that the characteristic impedance may decrease. On the other hand, by providing the through hole 225 in the conductor portion 22, it is possible to reduce the number of signal contact conductors 20 that are close to the ground main body portion 11 of the ground contact conductor 10, so that the characteristic impedance is suppressed from decreasing. ..
  • the receptacle connector 2 has a signal contact conductor 20 and a ground contact conductor 10, and a housing 30 that insulates the signal contact conductor 20 and the ground contact conductor 10 while integrating them.
  • the ground contact conductor 10 includes a cylindrical ground main body 11 extending along a predetermined center axis C, and an external terminal portion 12 provided on one end of the ground main body 11 in the central axis C direction. ,have.
  • the signal contact conductor 20 has a substantially tubular shape that extends inwardly of the ground main body 11 in the central axis C direction and has a slit 211 extending in the central axis C direction.
  • the signal contact conductor 20 is a signal contact for the plug connector 3 (counterpart connector).
  • the central axis C From the contact portion 21 in contact with the conductor 40 and one end edge of the contact portion 21 in the central axis C direction (the end edge on the same side of the ground main body portion 11 as the side on which the external terminal portion 12 is provided), the central axis C And a conducting wire portion 22 extending in the extending direction intersecting the direction.
  • the housing 30 comes into contact with the edge of the contact portion 21 of the signal contact conductor 20 where the conductor wire portion 22 is provided, and also between the contact portion 21 and the ground main body portion 11 and inside the contact portion 21.
  • the height of the surface inside the contact portion 21 along the central axis C direction inside the contact portion 21 is larger than the height of the surface between the contact portion 21 and the ground main body portion 11 along the central axis C direction.
  • the housing 30 is formed by the insert molding as described above, even if a burr or the like due to the material forming the housing 30 occurs, the burr affects the contact with the counterpart contact conductor. The risk given can be reduced. Therefore, it is possible to suppress the occurrence of connection failure due to the molding of the housing 30.
  • the height of the surface of the housing 30 along the central axis C direction is the center inside the contact portion 21.
  • the height may be the same as the height of the surface along the direction of the axis C.
  • the height of the housing 30 in the region continuous from the slit 211 is set to the same height as the inside of the contact portion 21, so that even if burrs or the like occur around the slit 211, the burrs will plug into the plug. It is possible to reduce the risk of affecting the contact of the connector 3 with the signal contact conductor 40 (counterpart signal contact conductor). Therefore, it is possible to further suppress the occurrence of connection failure due to the molding of the housing 30.
  • the signal contact conductor 20 is set in the mold, and then a component in the mold is brought into contact with the outside of the slit 211 at the time of injecting the insulating material, so that a signal is generated in the mold.
  • the contact conductor 20 can be accurately positioned. Furthermore, since the component in the mold contacts the outside of the slit 211, it is possible to prevent the insulating material from leaking out from the relevant portion.
  • a cutout portion 213 is provided continuously to the conductive wire portion 22 at an end edge of the contact portion 21 of the signal contact conductor 20 where the conductive wire portion 22 is provided.
  • the contact portion 21 and the ground main body portion 11 are connected.
  • the housing 30 in between and the housing 30 inside the contact portion 21 are continuous. Since the housing 30 is continuous between the contact portion 21 and the ground main body portion 11 and inside the contact portion 21 via the cutout portion 213, the housing 30, the ground contact conductor 10, and the signal contact conductor 20 are connected to each other. The adhesion of is improved. Therefore, damage to the receptacle connector 2 can be prevented.
  • the ground contact conductor 60 holds the fitting portion 61 that fits into the ground contact conductor 10 of the receptacle connector 2 and the portion of the terminal portion TP of the coaxial cable SC from which the insulating coating SC4 has been removed.
  • the clamp portion 64 is in contact with the shield wire SC3, and the clamp portion 64 is located at the farthest end from the fitting portion 61 in the ground contact conductor 60.
  • the shield wire SC3 is provided via the insulating coating SC4. The part facing is reduced. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
  • the ground contact conductor 60 may further include a barrel portion 65 that holds the housing 50 between the fitting portion 61 and the clamp portion 64, and the barrel portion 65 further includes the dielectric layer SC2 and the shield line SC3. It may be configured to hold.
  • the clamp portion 64 is located at the farthest end from the fitting portion 61, it is difficult to separately provide a portion that holds the coaxial cable SC from the outside of the insulating coating SC4 (hereinafter, referred to as “outer skin clamp”).
  • the barrel portion 65 further holds the dielectric layer SC2 and the shield wire SC3 between the housing 50 and the clamp portion 64, the ground contact conductor 60 is provided by the barrel portion 65 instead of the outer cover clamp. It is possible to reinforce the connection between the cable and the coaxial cable SC.
  • the ground contact conductor 60 may further include a holding claw portion 653 that protrudes inward from the barrel portion 65 and pushes the coaxial cable SC toward the dielectric layer SC2.
  • a holding claw portion 653 that protrudes inward from the barrel portion 65 and pushes the coaxial cable SC toward the dielectric layer SC2.
  • the reinforcing effect of the barrel portion 65 at the connecting portion between the ground contact conductor 60 and the coaxial cable SC can be further enhanced.
  • the barrel portion 65 and the shield wire SC3 can be electrically connected more firmly, and the characteristic impedance can be further improved.
  • the holding claw portion 653 may be located closer to the clamp portion 64 between the housing 50 and the clamp portion 64. In this case, the reinforcing effect can be further enhanced by the holding claw portion 653, and the barrel portion 65 and the shield wire SC3 can be more firmly connected to each other.
  • the housing 50 may have openings OP1 and OP2 for ultrasonically connecting the signal line SC1 to the connecting portion 42.
  • the posture of the signal line SC1 after joining is stable as compared with solder joining or the like, so that the stability of the characteristic impedance can be further improved. is there.
  • the thermal damage to the dielectric layer SC2 at the time of joining is small as compared with solder joining or the like, it is possible to shorten the exposed length of the signal line SC1 and bring the tip of the dielectric layer SC2 closer to the connecting portion 42. it can. Therefore, the holding margin of the dielectric layer SC2 and the shield line SC3 by the barrel portion 65 can be lengthened, and the reinforcing effect of the barrel portion 65 can be further enhanced.
  • the ground contact conductor 60 may further include a lid portion 63 that closes one end of the fitting portion 61 without overlapping the outer peripheral surface of the fitting portion 61.
  • the structure in which the lid portion 63 does not overlap the outer peripheral surface of the fitting portion 61 further reduces the number of locations where capacitance is likely to occur. Therefore, it is more effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
  • the contact portion 41 and the connection portion are arranged so as to suppress the characteristic impedance change between the signal contact conductor 40 and the ground contact conductor 60 depending on the position between the contact portion 41 and the connection portion 42.
  • the width of the intermediate portion 43 may be changed depending on the position between the intermediate portion 43 and 42. In this case, the change in the characteristic impedance from the connecting portion 42 to the contact portion 41 is suppressed by the width of the intermediate portion 43. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
  • the intermediate portion 43 located in the gap GP2 between the fitting portion 61 and the barrel portion 65 there are a portion of the intermediate portion 43 located in the fitting portion 61 and a portion of the intermediate portion 43 located in the barrel portion 65.
  • the widened portion 433 having a width larger than any of the above may be provided.
  • the amount of metal on the side of the ground contact conductor 60 is smaller than that in the barrel portion 65 or the like. Therefore, the characteristic impedance between the signal contact conductor 40 and the ground contact conductor 60 tends to be higher than that in the barrel portion 65 or the like.
  • the widened portion 433 in the intermediate portion 43 it is possible to prevent the characteristic impedance from increasing in the path from the connection portion 42 to the contact base 411.
  • the width of the connecting portion 42 is larger than the width of the intermediate portion 43, and the housing 50 may be configured to form cavities CC1 and CC2 between the connecting portion 42 and the ground contact conductor 60.
  • the workability of connecting the signal line SC1 to the connecting portion 42 is improved by increasing the width of the connecting portion 42.
  • the width of the connecting portion 42 increases, the characteristic impedance of the connecting portion 42 decreases.
  • the housing 50 forms the cavities CC1 and CC2 between the connecting portion 42 and the ground contact conductor 60, the permittivity between the connecting portion 42 and the ground contact conductor 60 becomes low. Therefore, the characteristic impedance is prevented from being lowered due to the increased width of the connection portion 42. Therefore, both workability of connection of the signal line SC1 and suppression of change in characteristic impedance can be achieved.
  • At least a part of the cavities CC1 and CC2 may be formed by the openings OP1 and OP2 for ultrasonically bonding the signal line SC1 to the connecting portion 42.
  • the openings OP1 and OP2 contribute to both suppressing the characteristic impedance change and improving the workability of ultrasonic bonding. Therefore, compatibility between workability of connection of the signal line SC1 and suppression of change in characteristic impedance can be more reliably achieved.
  • connection portion 42 has a first main surface 421 for connecting the signal line SC1
  • the intermediate portion 43 has a first main surface 431 that is continuous with the first main surface 421
  • the signal contact conductor 40 has a first
  • the first main surface 421 may be bent at the boundary between the intermediate portion 43 and the connecting portion 42 so as to be recessed with respect to the first main surface 431. In this case, the balance between the distance between the connecting portion 42 and the ground contact conductor 60 and the distance between the signal line SC1 connected to the connecting portion 42 and the ground contact conductor 60 is adjusted, so that the characteristic impedance change is more reliably performed. Can be suppressed.
  • the plug connector 3A includes a signal contact conductor 40A, a ground contact conductor 60, and an insulating housing 50.
  • the plug connector 3A is different from the plug connector 3 in the shape of the signal contact conductor 40A.
  • the plug connector 3A is attached to the terminal portion TP where the signal line SC1 and the shield line SC3 are partially exposed.
  • the signal contact conductor 40A is electrically connected to the signal line SC1.
  • the signal contact conductor 40A of the plug connector 3A has a contact portion 41, a connection portion 42, an intermediate portion 43, and extension portions 44 and 45 (see FIG. 14).
  • the shape of the contact portion 41, the connecting portion 42, and the extension portions 44 and 45 in the signal contact conductor 40A is the same as that of the signal contact conductor 40, but the shape of the intermediate portion 43 is different from that of the signal contact conductor 40.
  • the intermediate portion 43 of the signal contact conductor 40A has a first main surface 431 and a second main surface 432 opposite to the first main surface 431 in the Z direction. Further, in the intermediate portion 43, the distance in the Z direction from the ground contact conductor 60 changes along the direction (X direction) connecting the contact portion 41 and the connection portion 42. Specifically, the intermediate portion 43 has a convex portion 435 such that the first main surface 431 has a convex shape along the direction (X direction) connecting the contact portion 41 and the connecting portion 42. The convex portion 435 is shaped so as to have a concave shape on the second main surface 432. As a result, as shown in FIG.
  • the signal contact conductor 40A has a shorter distance in the Z direction from the ground contact conductor 60 than the contact base 411 that is the base of the contact portion 41 in the convex portion 435.
  • the convex portion 435 is opposed to a region that connects the lid portion 63 of the ground contact conductor 60 and the barrel base 651 of the barrel portion 65.
  • the distance between the facing surface 69 of the ground contact conductor 60 and the first main surface 431 of the protrusion 435 of the signal contact conductor 40A is shorter than that of the contact base 411 that is the base of the contact portion 41.
  • the convex portion 435 is not provided with irregularities or the like in the width direction (Y direction) of the intermediate portion 43, and the distance from the ground contact conductor 60 in the Y direction is uniform.
  • the convex portion 435 of the intermediate portion 43 suppresses the characteristic impedance change between the signal contact conductor 40A and the ground contact conductor 60 depending on the position in the direction (X direction) connecting the contact portion 41 and the connection portion 42. It is set.
  • the characteristic impedance between the intermediate portion 43 and the ground contact conductor 60 is the direction connecting the contact portion 41 and the connecting portion 42 (X direction). ) Can vary depending on the position.
  • the width of the intermediate portion 43 (the length along the Y direction) is changed to suppress the change in the characteristic impedance.
  • the change in the characteristic impedance is suppressed by adjusting the distance in the Z direction between the intermediate portion of the signal contact conductor 40A and the ground contact conductor 60.
  • the first main surface 431 of the intermediate portion 43 and the ground contact are compared with the position where the characteristic impedance becomes low by providing the convex portion 435.
  • the characteristic impedance is adjusted to be low by reducing the distance in the Z direction from the conductor 60.
  • the distance in the Z direction from the ground contact conductor changes along the direction (X direction) connecting the contact portion 41 and the connection portion 42.
  • the characteristic impedance change from the contact portion 41 to the connection portion 42 is caused by the change in the Z direction distance between the intermediate portion 43 (particularly the first main surface 431) and the ground contact conductor 60. Suppressed. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
  • the convex portion 435 when the convex portion 435 having a shorter distance in the Z direction from the ground contact conductor 60 than the base portion of the contact portion 41 is provided, the convex portion 435 can lower the characteristic impedance. Therefore, the convex portion 435 is effective for adjustment for the purpose of reducing the characteristic impedance.
  • the first main surface 431 has a concave shape and the second main surface 432 has a convex shape along the direction (X direction) connecting the contact portion 41 and the connecting portion 42.
  • Providing a recess is also effective for adjusting the characteristic impedance.
  • the signal contact conductor 40B shown in FIG. 15 has a concave portion 436 between the convex portion 435 and the connecting portion 42. In the recess 436, the distance in the Z direction between the first main surface 431 and the ground contact conductor 60 is longer than that of the contact base 411 that is the base of the contact portion 41.
  • the recess 436 when the recess 436 is longer than the base of the contact portion 41 in the Z direction with respect to the ground contact conductor 60, the recess 436 can increase the characteristic impedance. Therefore, the recess 436 is effective for adjustment for the purpose of increasing the characteristic impedance.
  • only the recess 436 is provided in the intermediate portion 43. In this way, only the recess 436 may be provided to suppress the change in the characteristic impedance.
  • the width (length along the Y direction) of the intermediate portion 43 is uniform along the direction (X direction) connecting the contact portion 41 and the connecting portion 42,
  • the convex portion 435 or the concave portion 436 makes it possible to adjust the distance in the Z direction from the ground contact conductor 60.
  • the characteristic impedance can be adjusted without changing the width of the intermediate portion 43.
  • the characteristic impedance by adjusting the characteristic impedance by changing the width (length along the Y direction) of the intermediate portion 43, and by providing the convex portion 435 or the concave portion 436. You may combine with characteristic impedance.
  • a convex portion 435 is provided on the intermediate portion 43.
  • the widened portion 433 having a width (length along the Y direction) larger than both the portion of the intermediate portion 43 located in the barrel portion 65 and the portion of the fitting portion 61. Is provided.
  • the convex portion 435 since the widened portion 433 and the convex portion 435 overlap each other, the convex portion 435 has a so-called wide shape.
  • the intermediate portion 43 is provided with the convex portion 435 and the concave portion 436. Further, the intermediate portion 43 is provided with a widened portion 433, and the widened portion 433 overlaps the convex portion 435 and the concave portion 436. Therefore, in the signal contact conductor 40E, both the convex portion 435 and the concave portion 436 have a so-called wide shape. Furthermore, in the signal contact conductor 40F shown in FIG. 19, a recess 436 is provided in the intermediate portion 43. Further, the widened portion 433 is provided in the intermediate portion 43, and the widened portion 433 overlaps with the concave portion 436. Therefore, in the signal contact conductor 40F, both the convex portion 435 and the concave portion 436 have a so-called wide shape.
  • the characteristic impedance is adjusted by changing the width (the length along the Y direction) by providing the widened portion 433 and the distance in the Z direction from the ground contact conductor 60 by providing the convex portion 435 or the concave portion 436.
  • the stability of the characteristic impedance in the transmission path of the high frequency signal can be improved.
  • the positions where the convex portion 435 and the concave portion 436 are provided can be changed as appropriate in consideration of the change in the characteristic impedance. Further, regarding the convex portion 435 and the concave portion 436, the distance in the Z direction from the ground contact conductor 60 when compared with the contact base 411 which is the base portion of the contact portion 41 or when compared with the main portion of the intermediate portion 43. The difference can be changed appropriately. Further, the length of the convex portion 435 and the concave portion 436 along the direction (X direction) connecting the contact portion 41 and the connecting portion 42, and the length of the convex portion 435 and the concave portion 436 in the Z direction. It is also possible to appropriately change how much is set. Also, the positional relationship with the widened portion 433 can be appropriately changed.
  • SYMBOLS 1 Connector assembly, 2... Receptacle connector, 3, 3A... Plug connector, 10... Ground contact conductor, 11... Ground main body part, 12... External terminal part, 20... Signal contact conductor, 21... Contact part, 22... Conductor wire Part, 30... Housing, 33... Recess, 40, 40A-40F... Signal contact conductor, 41... Contact part, 42... Connection part, 43... Intermediate part, 50... Housing, 60... Ground contact conductor, 61... Fitting part , 63... Lid portion, 64... Clamping portion, 65... Barrel portion, 421, 431... First main surface, 433... Widened portion, CC1, CC2... Cavity, OP1, OP2... Opening, SC... Coaxial cable, SC1... Signal Wire, SC3... Shielded wire, SC2... Dielectric layer, SC4... Insulating coating, TP... Terminal portion.

Abstract

In a plug connector 3, a signal contact conductor 40 includes a contact part 41 that contacts a signal contact conductor 20 of a mating connector, a connection part 42 to which a signal line SC1 of a coaxial cable SC is connected, and an intermediate part 43 located between the contact part 41 and the connection part 42. The area and/or the distance of the intermediate part 43 may vary in accordance with a position between the contact part 41 and the connection part 42, such that characteristic impedance variation, which is between the signal contact conductor 40 and the ground contact conductor 60 and is according to the position between the contact part 41 and the connection part 42, is suppressed.

Description

コネクタconnector
　本開示は、コネクタに関する。 The present disclosure relates to connectors.
　特許文献１には、同軸ケーブルの中心導体と接続されるコンタクトと、コンタクトを収容する樹脂製のボディと、コンタクトを収容したボディを覆う金属製のシェルとを備える同軸コネクタが開示されている。 Patent Document 1 discloses a coaxial connector that includes a contact connected to a center conductor of a coaxial cable, a resin body that houses the contact, and a metal shell that covers the body housing the contact.
特開２０１３－１５７１１３号公報JP, 2013-157113, A
　近年、コネクタには、高周波信号の伝送における更なる信頼性向上が求められている。そこで本開示は、高周波信号の伝送経路における特性インピーダンスの安定性向上に有効なコネクタを提供する。 In recent years, connectors are required to further improve reliability in high-frequency signal transmission. Therefore, the present disclosure provides a connector effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
　本開示の一側面に係るコネクタは、信号線及びシールド線と、前記信号線と前記シールド線との間に介在する誘電体層と、前記シールド線を覆う絶縁被覆とを有する同軸ケーブルにおいて、前記絶縁被覆が除去され前記信号線及び前記シールド線が部分的に露出した端末部分に取り付けられ、配線基板に実装された相手方コネクタに接続されるコネクタであって、前記信号線と導通する信号コンタクト導体と、前記シールド線と導通するグランドコンタクト導体と、前記信号コンタクト導体と前記グランドコンタクト導体との間に介在する絶縁性のハウジングと、を備え、前記信号コンタクト導体は、前記相手方コネクタの信号コンタクト導体に接触する接触部と、前記信号線が接続される接続部と、前記接触部と前記接続部とを繋ぐ中間部とを有し、前記接触部と前記接続部とを繋ぐ方向における位置に応じた前記信号コンタクト導体と前記グランドコンタクト導体との間の特性インピーダンス変化を抑制するように、前記グランドコンタクト導体と対向する前記信号コンタクト導体の面積及び距離の少なくとも一方が変化している。 A connector according to one aspect of the present disclosure is a coaxial cable that includes a signal line and a shield line, a dielectric layer interposed between the signal line and the shield line, and an insulating coating that covers the shield line. A signal contact conductor, which is attached to a terminal portion where the insulating coating is removed and the signal line and the shield line are partially exposed, and which is connected to a mating connector mounted on a wiring board and which is conductive with the signal line. And a ground contact conductor conducting with the shield wire, and an insulative housing interposed between the signal contact conductor and the ground contact conductor, wherein the signal contact conductor is the signal contact conductor of the mating connector. Depending on the position in the direction connecting the contact portion and the connection portion, the contact portion that contacts the contact line, the connection portion to which the signal line is connected, and the intermediate portion that connects the contact portion and the connection portion. In addition, at least one of the area and the distance of the signal contact conductor facing the ground contact conductor is changed so as to suppress the characteristic impedance change between the signal contact conductor and the ground contact conductor.
　このコネクタによれば、接続部から接触部に至るまでの特性インピーダンス変化が、グランドコンタクト導体と対向する信号コンタクト導体の面積及び距離の少なくとも一方によって抑制される。従って、高周波信号の伝送経路における特性インピーダンスの安定性向上に有効である。 According to this connector, the change in characteristic impedance from the connecting portion to the contact portion is suppressed by at least one of the area and the distance of the signal contact conductor facing the ground contact conductor. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
　中間部は、前記接触部と前記接続部とを繋ぐ方向における位置に応じてその幅が変化している態様としてもよい。すなわち、本開示の一側面に係るコネクタは、信号線及びシールド線と、信号線とシールド線との間に介在する誘電体層と、シールド線を覆う絶縁被覆とを有する同軸ケーブルにおいて、絶縁被覆が除去され信号線及びシールド線が部分的に露出した端末部分に取り付けられ、配線基板に実装された相手方コネクタに接続されるコネクタであって、信号線と導通する信号コンタクト導体と、シールド線と導通するグランドコンタクト導体と、信号コンタクト導体とグランドコンタクト導体との間に介在する絶縁性のハウジングと、を備え、信号コンタクト導体は、相手方コネクタの信号コンタクト導体に接触する接触部と、信号線が接続される接続部と、接触部と接続部とを繋ぐ中間部とを有し、接触部と接続部とを繋ぐ方向における位置に応じた信号コンタクト導体とグランドコンタクト導体との間の特性インピーダンス変化を抑制するように、当該方向における位置に応じて中間部の幅が変化している。 The width of the intermediate portion may be changed according to the position in the direction connecting the contact portion and the connection portion. That is, a connector according to one aspect of the present disclosure is a coaxial cable having a signal line and a shield line, a dielectric layer interposed between the signal line and the shield line, and an insulating coat that covers the shield line. Is a connector which is attached to the terminal part where the signal line and the shielded wire are partially exposed and which is connected to the counterpart connector mounted on the wiring board, and which has a signal contact conductor conducting with the signal line, and a shielded wire. The signal contact conductor includes a conductive ground contact conductor and an insulating housing interposed between the signal contact conductor and the ground contact conductor. A characteristic impedance change between a signal contact conductor and a ground contact conductor according to a position in a direction connecting the contact portion and the connection portion, which has a connection portion to be connected and an intermediate portion connecting the contact portion and the connection portion. The width of the intermediate portion is changed according to the position in the direction so as to suppress.
　このコネクタによれば、接続部から接触部に至るまでの特性インピーダンス変化が、中間部の幅によって抑制される。従って、高周波信号の伝送経路における特性インピーダンスの安定性向上に有効である。 According to this connector, the change in the characteristic impedance from the connection part to the contact part is suppressed by the width of the intermediate part. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
　グランドコンタクト導体は、相手方コネクタのグランドコンタクト導体に嵌合する嵌合部と、同軸ケーブルの端末部分のうち絶縁被覆が除去された部分を保持してシールド線に接触するクランプ部と、嵌合部とクランプ部との間においてハウジングを保持するバレル部と、を有してもよく、接触部は嵌合部内に位置し、接続部はバレル部内に位置し、嵌合部とバレル部との間には間隙があり、中間部のうち間隙に位置する部分には、中間部のうち嵌合部内に位置する部分及びバレル部内に位置する部分のいずれよりも幅の大きい拡幅部が設けられていてもよい。嵌合部とバレル部との間においては、バレル部内等に比較して、グランドコンタクト導体側の金属量が少ない。このため、バレル部内等に比較して、信号コンタクト導体とグランドコンタクト導体との間の特性インピーダンスが高くなる傾向がある。これに対し、中間部に上記拡幅部を設けることによって、接続部から接触部に至る経路において上記特性インピーダンスが高くなることを抑制することができる。 The ground contact conductor is a fitting part that fits into the ground contact conductor of the mating connector, a clamp part that holds the part of the coaxial cable where the insulation coating has been removed, and contacts the shield wire And a barrel portion for holding the housing between the clamp portion and the clamp portion, the contact portion is located in the fitting portion, the connection portion is located in the barrel portion, and between the fitting portion and the barrel portion. There is a gap in the intermediate portion, and the portion of the intermediate portion located in the gap is provided with a widened portion that is wider than both the portion of the intermediate portion located in the fitting portion and the portion of the intermediate portion located in the barrel portion. Good. Between the fitting portion and the barrel portion, the amount of metal on the ground contact conductor side is smaller than that in the barrel portion and the like. Therefore, the characteristic impedance between the signal contact conductor and the ground contact conductor tends to be higher than that in the barrel portion or the like. On the other hand, by providing the widened portion in the intermediate portion, it is possible to prevent the characteristic impedance from increasing in the path from the connection portion to the contact portion.
　接続部の幅は中間部の幅よりも大きくてもよく、ハウジングは、接続部とグランドコンタクト導体との間に空洞をなすように構成されていてもよい。この場合、接続部の幅を大きくすることにより、接続部への信号線の接続の作業性が向上する。その一方で、接続部の幅が大きくなると、接続部における上記特性インピーダンスは低くなる。これに対し、ハウジングが接続部とグランドコンタクト導体との間に空洞をなすことによって、接続部とグランドコンタクト導体との間の誘電率が低くなる。このため、接続部の幅を大きくしたことに起因して上記特性インピーダンスが低くなることが抑制される。したがって、信号線の接続の作業性と、特性インピーダンス変化の抑制との両立を図ることができる。 The width of the connecting portion may be larger than the width of the intermediate portion, and the housing may be configured to form a cavity between the connecting portion and the ground contact conductor. In this case, the workability of connecting the signal line to the connecting portion is improved by increasing the width of the connecting portion. On the other hand, when the width of the connection portion increases, the characteristic impedance in the connection portion decreases. On the other hand, when the housing forms a cavity between the connection portion and the ground contact conductor, the dielectric constant between the connection portion and the ground contact conductor is reduced. Therefore, the characteristic impedance is prevented from being lowered due to the increased width of the connection portion. Therefore, it is possible to achieve both workability of connection of the signal line and suppression of change in characteristic impedance.
　ハウジングは、接続部に信号線を超音波接合するための開口を有し、開口により空洞の少なくとも一部が構成されていてもよい。この場合、超音波接合用の開口が、特性インピーダンス変化の抑制と、超音波接合の作業性向上との両方に寄与する。従って、信号線の接続の作業性と、特性インピーダンス変化の抑制との両立をより確実に図ることができる。 The housing may have an opening for ultrasonically connecting the signal line to the connection portion, and at least a part of the cavity may be formed by the opening. In this case, the opening for ultrasonic bonding contributes to both suppression of change in characteristic impedance and improvement in workability of ultrasonic bonding. Therefore, both workability of connection of the signal line and suppression of change in characteristic impedance can be more reliably achieved.
　中間部は、接触部と接続部とを繋ぐ方向に沿ってグランドコンタクト導体との距離が変化することとしてもよい。この場合、接続部から接触部に至るまでの特性インピーダンス変化が、中間部とグランドコンタクト導体との距離の変化によって抑制される。従って、高周波信号の伝送経路における特性インピーダンスの安定性向上に有効である。 　In the middle part, the distance from the ground contact conductor may change along the direction connecting the contact part and the connection part. In this case, the change in the characteristic impedance from the connecting portion to the contact portion is suppressed by the change in the distance between the intermediate portion and the ground contact conductor. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
　中間部は、接触部の基部よりもグランドコンタクト導体との距離が短い凸部を有していてもよい。この場合、凸部を利用して接続部から接触部に至るまでの特性インピーダンス変化を抑制することができ、安定性を向上させることができる。 ▽The middle part may have a convex part whose distance to the ground contact conductor is shorter than the base part of the contact part. In this case, the characteristic impedance change from the connecting portion to the contact portion can be suppressed by using the convex portion, and the stability can be improved.
　中間部は、接触部の基部よりもグランドコンタクト導体との距離が長い凹部を有していてもよい。この場合、凹部を利用して接続部から接触部に至るまでの特性インピーダンス変化を抑制することができ、安定性を向上させることができる。 　The middle part may have a recess whose distance to the ground contact conductor is longer than that of the base of the contact part. In this case, it is possible to suppress the change in the characteristic impedance from the connecting portion to the contact portion by utilizing the recess, and it is possible to improve the stability.
　接続部は、信号線を接続するための接続主面を有してもよく、中間部は、接続主面に連なる中間主面を有し、信号コンタクト導体は、接続主面が中間主面に対して窪むように中間部と接続部との境界部において屈曲していてもよい。この場合、接続部とグランドコンタクト導体との間隔と、接続部に接続された信号線とグランドコンタクト導体との間隔とのバランスを調節し、特性インピーダンス変化をより確実に抑制することができる。 The connection part may have a connection main surface for connecting the signal line, the intermediate part has an intermediate main surface continuous with the connection main surface, and the signal contact conductor has the connection main surface on the intermediate main surface. You may bend in the boundary part of an intermediate part and a connection part so that it may become hollow. In this case, the balance between the distance between the connection portion and the ground contact conductor and the distance between the signal line connected to the connection portion and the ground contact conductor can be adjusted to more reliably suppress the characteristic impedance change.
　本開示によれば、高周波信号の伝送経路における特性インピーダンスの安定性向上に有効なコネクタを提供することができる。 According to the present disclosure, it is possible to provide a connector that is effective in improving the stability of characteristic impedance in a transmission path of a high frequency signal.
図１は、本開示の一実施形態に係るコネクタ組立体の斜視図である。FIG. 1 is a perspective view of a connector assembly according to an embodiment of the present disclosure. 図２は、図１のコネクタ組立体に含まれるリセプタクルコネクタの斜視図である。2 is a perspective view of the receptacle connector included in the connector assembly of FIG. 図３は、図２のリセプタクルコネクタのIII－III線に沿った断面図である。FIG. 3 is a cross-sectional view of the receptacle connector of FIG. 2 taken along the line III-III. 図４は、リセプタクルコネクタに含まれるグランドコンタクト導体の斜視図である。FIG. 4 is a perspective view of the ground contact conductor included in the receptacle connector. 図５は、リセプタクルコネクタに含まれる信号コンタクト導体を示す図であり、（ａ）は斜視図、（ｂ）は右側面図、（ｃ）は左側面図である。5A and 5B are views showing a signal contact conductor included in the receptacle connector. FIG. 5A is a perspective view, FIG. 5B is a right side view, and FIG. 5C is a left side view. 図６は、図１のコネクタ組立体に含まれるプラグコネクタの斜視図である。FIG. 6 is a perspective view of a plug connector included in the connector assembly of FIG. 図７は、図６のプラグコネクタのVII－VII線に沿った断面図である。FIG. 7 is a sectional view of the plug connector of FIG. 6 taken along line VII-VII. 図８は、図６のプラグコネクタの底面図である。FIG. 8 is a bottom view of the plug connector of FIG. 図９は、プラグコネクタに含まれる信号コンタクト導体の斜視図である。FIG. 9 is a perspective view of a signal contact conductor included in the plug connector. 図１０は、プラグコネクタに含まれるハウジングの斜視図である。FIG. 10 is a perspective view of a housing included in the plug connector. 図１１は、図１０のハウジングの底面図である。11 is a bottom view of the housing of FIG. 図１２は、コネクタ組立体の嵌合状態を説明する図であり、図１のXII－XII線に沿った断面図である。FIG. 12 is a view for explaining the fitting state of the connector assembly, which is a cross-sectional view taken along the line XII-XII in FIG. 図１３は、変形例に係るプラグコネクタの断面図である。FIG. 13 is a sectional view of a plug connector according to a modification. 図１４は、変形例に係るプラグコネクタに含まれる信号コンタクト導体の斜視図である。FIG. 14 is a perspective view of a signal contact conductor included in the plug connector according to the modification. 図１５は、変形例に係るプラグコネクタに含まれる信号コンタクト導体の斜視図である。FIG. 15 is a perspective view of a signal contact conductor included in the plug connector according to the modification. 図１６は、変形例に係るプラグコネクタに含まれる信号コンタクト導体の斜視図である。FIG. 16 is a perspective view of a signal contact conductor included in the plug connector according to the modification. 図１７は、変形例に係るプラグコネクタに含まれる信号コンタクト導体の斜視図である。FIG. 17 is a perspective view of a signal contact conductor included in the plug connector according to the modification. 図１８は、変形例に係るプラグコネクタに含まれる信号コンタクト導体の斜視図である。FIG. 18 is a perspective view of a signal contact conductor included in the plug connector according to the modification. 図１９は、変形例に係るプラグコネクタに含まれる信号コンタクト導体の斜視図である。FIG. 19 is a perspective view of a signal contact conductor included in the plug connector according to the modification.
　以下に説明される本開示に係る実施形態について説明するが、本開示は以下の内容に限定されるべきではない。以下の説明においては同一要素には同一符号を付し、重複する説明を省略する。 The embodiments according to the present disclosure described below will be described, but the present disclosure should not be limited to the following contents. In the following description, the same elements will be denoted by the same reference symbols, without redundant description.
［コネクタ組立体の概要］
　図１を参照して、コネクタ組立体の概要について説明する。図１に示されるように、コネクタ組立体１は、リセプタクルコネクタ２と、プラグコネクタ３とを備える。コネクタ組立体１は、ケーブル状の信号伝送媒体を配線基板の電気回路に電気的に接続するコネクタであり、例えばＲＦ（Radio Frequency）コネクタである。信号伝送媒体とは、携帯電話等の種々の電子機器の信号を伝送する媒体であり、例えば同軸ケーブルＳＣである。配線基板とは、例えば印刷配線基板ＰＢである。すなわち、本実施形態のコネクタ組立体１は、同軸ケーブルＳＣを印刷配線基板ＰＢの電気回路に電気的に接続する同軸型コネクタである。コネクタ組立体１では、印刷配線基板ＰＢに実装されたリセプタクルコネクタ２に対して、同軸ケーブルＳＣの端末部分に取り付けられたプラグコネクタ３が嵌合することにより、同軸ケーブルＳＣと印刷配線基板ＰＢの電気回路とを電気的に接続する（詳細は後述）。 [Outline of connector assembly]
An outline of the connector assembly will be described with reference to FIG. As shown in FIG. 1, the connector assembly 1 includes a receptacle connector 2 and a plug connector 3. The connector assembly 1 is a connector that electrically connects a cable-shaped signal transmission medium to an electric circuit of a wiring board, and is, for example, an RF (Radio Frequency) connector. The signal transmission medium is a medium that transmits signals of various electronic devices such as a mobile phone, and is, for example, a coaxial cable SC. The wiring board is, for example, the printed wiring board PB. That is, the connector assembly 1 of the present embodiment is a coaxial connector that electrically connects the coaxial cable SC to the electric circuit of the printed wiring board PB. In the connector assembly 1, the plug connector 3 attached to the terminal portion of the coaxial cable SC is fitted to the receptacle connector 2 mounted on the printed wiring board PB, whereby the coaxial cable SC and the printed wiring board PB are connected. It is electrically connected to an electric circuit (details will be described later).
　なお、以下の説明においては、同軸ケーブルＳＣの軸方向を「Ｘ方向」、リセプタクルコネクタ２及びプラグコネクタ３が嵌合する際における、リセプタクルコネクタ２及びプラグコネクタ３の嵌合方向を「Ｚ方向」、Ｘ方向及びＺ方向に直交する方向を「Ｙ方向」として説明する場合がある。また、Ｚ方向に関して、例えば図１に示した状態のプラグコネクタ３側を「上」、リセプタクルコネクタ２側を「下」として説明する場合がある。また、特にプラグコネクタ３の説明において、Ｘ方向に関しては、同軸ケーブルＳＣにおけるプラグコネクタ３が取り付けられた端部を「先端」、反対の端部を「後端（基端）」として説明する場合がある。 In the following description, the axial direction of the coaxial cable SC is the “X direction”, and the mating direction of the receptacle connector 2 and the plug connector 3 when the receptacle connector 2 and the plug connector 3 are mated is the “Z direction”. , The direction orthogonal to the X and Z directions may be described as the “Y direction”. Further, in the Z direction, the plug connector 3 side in the state shown in FIG. 1 may be described as “upper” and the receptacle connector 2 side as “lower”, for example. Further, particularly in the description of the plug connector 3, with respect to the X direction, an end portion of the coaxial cable SC where the plug connector 3 is attached is referred to as a “front end” and an opposite end portion is referred to as a “rear end (base end)”. There is.
［リセプタクルコネクタ］
　図２～図５を参照して、リセプタクルコネクタ２の詳細について説明する。図２及び図３に示されるように、リセプタクルコネクタ２は、グランドコンタクト導体１０と、信号コンタクト導体２０と、ハウジング３０とを有している。リセプタクルコネクタ２は、印刷配線基板ＰＢ（図１参照）に、例えば半田付けにより実装される。 [Receptacle connector]
The details of the receptacle connector 2 will be described with reference to FIGS. 2 to 5. As shown in FIGS. 2 and 3, the receptacle connector 2 has a ground contact conductor 10, a signal contact conductor 20, and a housing 30. The receptacle connector 2 is mounted on the printed wiring board PB (see FIG. 1) by, for example, soldering.
（グランドコンタクト導体）
　グランドコンタクト導体１０は、例えば薄板状の金属部材から形成された接地用の部材である。グランドコンタクト導体１０は、信号コンタクト導体２０のうちの接触部２１（詳細は後述）を取り囲むように配置されている。図４に示されるように、グランドコンタクト導体１０は、円筒形状（筒状）に形成されたグランド本体部１１（本体部）と、該グランド本体部１１の、Ｚ方向における一方の端縁（図４では下端）から外方に向かって延出する外部端子部１２とを有している。 (Ground contact conductor)
The ground contact conductor 10 is a member for grounding formed of, for example, a thin plate-shaped metal member. The ground contact conductor 10 is arranged so as to surround a contact portion 21 (details will be described later) of the signal contact conductor 20. As shown in FIG. 4, the ground contact conductor 10 includes a ground main body 11 (main body) formed in a cylindrical shape (cylindrical shape), and one end of the ground main body 11 in the Z direction (see FIG. 4 has an external terminal portion 12 extending outward from the lower end).
　グランド本体部１１は円筒形状の部材であり、中心軸Ｃに沿って上下方向（Ｚ方向）に延在する。すなわち、グランド本体部１１の中心軸Ｃ方向は、上下方向（Ｚ方向）に対応する。グランド本体部１１は、Ｚ方向における他方の端縁（図４では上端）よりプラグコネクタ３のグランドコンタクト導体（後述）と接続される。グランド本体部１１の外周面には、プラグコネクタ３との嵌合に用いられる溝１１ａが周方向に沿って設けられる。 The gland body 11 is a cylindrical member and extends along the central axis C in the vertical direction (Z direction). That is, the central axis C direction of the ground main body 11 corresponds to the vertical direction (Z direction). The ground main body 11 is connected to a ground contact conductor (described later) of the plug connector 3 from the other edge (upper end in FIG. 4) in the Z direction. A groove 11a used for fitting with the plug connector 3 is provided on the outer peripheral surface of the gland body 11 along the circumferential direction.
　外部端子部１２は、図４に示すように、水平方向（ＸＹ方向）に沿って延びる平板状の部材である。外部端子部１２は、グランド本体部１１の下端部から外方へ延びる。外部端子部１２は、上下方向に延びるグランド本体部１１の中心軸Ｃを挟んでＹ方向に対向して設けられる一対の端子部１２１，１２２を含んで構成される。一対の端子部１２１，１２２はそれぞれ、中心軸Ｃから離間するように外方へ突出する。端子部１２１，１２２はそれぞれ略同一の矩形状であって、中心軸Ｃを挟んで互いに離間した状態で、それぞれの長手方向がＸ方向に沿うようにグランド本体部１１の下端に対して接続される。そのため、端子部１２１のうち端子部１２２と対向する対向面１２１ａ、及び、端子部１２２のうち端子部１２１と対向する対向面１２２ａは、それぞれグランド本体部１１よりも下方においてＸ方向に沿って延びる。対向面１２１ａと対向面１２２ａとの間には、端子部１２１，１２２の長手方向（Ｘ方向）に沿って延びる空隙Ｓ１が形成されているが、この空隙Ｓ１は後述のハウジング３０となる絶縁性部材によって埋められる。 The external terminal portion 12 is a flat plate-shaped member extending in the horizontal direction (XY direction) as shown in FIG. The external terminal portion 12 extends outward from the lower end portion of the ground body portion 11. The external terminal portion 12 is configured to include a pair of terminal portions 121 and 122 provided so as to face each other in the Y direction with the central axis C of the ground main body portion 11 extending in the vertical direction interposed therebetween. Each of the pair of terminal portions 121 and 122 projects outward so as to be separated from the central axis C. The terminal portions 121 and 122 have substantially the same rectangular shape and are connected to the lower end of the ground main body portion 11 so that their longitudinal directions are along the X direction while being separated from each other with the central axis C therebetween. It Therefore, the facing surface 121a of the terminal portion 121 that faces the terminal portion 122 and the facing surface 122a of the terminal portion 122 that faces the terminal portion 121 extend in the X direction below the ground main body portion 11, respectively. .. A space S1 extending along the longitudinal direction (X direction) of the terminal portions 121 and 122 is formed between the facing surface 121a and the facing surface 122a. The space S1 serves as a housing 30 which will be described later. Filled by members.
　端子部１２１の対向面１２１ａは概ね上下方向（Ｚ方向）に延びているが、その一部に上下方向に対して傾斜する傾斜部１２１ｂが形成されている。傾斜部１２１ｂは端子部１２１の対向面１２１ａの一部を上面１２１ｕ側に切り欠くように傾斜している。傾斜部１２１ｂと同様に、端子部１２２の対向面１２２ａにも、その一部に上下方向に対して傾斜する傾斜部１２２ｂが形成されている。傾斜部１２２ｂは端子部１２２の対向面１２２ａの一部を上面１２２ｕ側に切り欠くように傾斜している。傾斜部１２１ｂ，１２２ｂが設けられていることで、グランドコンタクト導体１０と後述のハウジング３０との密着性が高められる。詳細は後述する。 The facing surface 121a of the terminal portion 121 extends substantially in the vertical direction (Z direction), and an inclined portion 121b that is inclined with respect to the vertical direction is formed in a part thereof. The inclined portion 121b is inclined so that a part of the facing surface 121a of the terminal portion 121 is cut out to the upper surface 121u side. Similar to the inclined portion 121b, the opposed surface 122a of the terminal portion 122 is also formed with an inclined portion 122b that is inclined with respect to the vertical direction in a part thereof. The inclined portion 122b is inclined so that a part of the facing surface 122a of the terminal portion 122 is cut out toward the upper surface 122u. By providing the inclined portions 121b and 122b, the adhesion between the ground contact conductor 10 and the housing 30 described later is enhanced. Details will be described later.
　上記のグランドコンタクト導体１０は、例えば、薄板状の金属材料をプレス・折曲げ加工することにより製造することができるが、それらとは異なる方法で製造されていてもよい。また、グランドコンタクト導体１０は、印刷配線基板ＰＢ（図１参照）上に形成されたグランド接続用のグランド導電路（不図示）に対して半田付けされる。 The above ground contact conductor 10 can be manufactured, for example, by pressing and bending a thin plate-shaped metal material, but it may be manufactured by a method different from them. Further, the ground contact conductor 10 is soldered to a ground conductive path (not shown) for ground connection formed on the printed wiring board PB (see FIG. 1).
（信号コンタクト導体）
　信号コンタクト導体２０は、例えば薄板状の金属部材から形成された信号伝送用の導体である。 (Signal contact conductor)
The signal contact conductor 20 is a signal transmission conductor formed of, for example, a thin plate-shaped metal member.
　図５に示されるように、信号コンタクト導体２０は、円筒形状に形成された接触部２１と、該接触部２１の、Ｚ方向における一方の端縁である下端から外方に向かって延在する導線部２２とを有している。 As shown in FIG. 5, the signal contact conductor 20 extends outward from a contact portion 21 formed in a cylindrical shape and a lower end which is one end edge of the contact portion 21 in the Z direction. And a conductor portion 22.
　接触部２１は略円筒形状であり、中心軸Ｃに沿って上下方向（Ｚ方向）に延在する。接触部２１の外径は、グランドコンタクト導体１０のグランド本体部１１の内径よりも小さい。また、接触部２１は、中心軸Ｃの延在方向（上下方向：Ｚ方向）に沿って延びるスリット２１１を有する。スリット２１１は、Ｚ方向において、筒状の接触部２１の両端まで延びている。したがって、接触部２１は、中心軸Ｃに対して直交する平面に沿った平面視において、スリット２１１を有する略Ｃ型状を呈している。接触部２１は、他方の端縁（図５では上端）よりプラグコネクタ３の信号コンタクト導体（後述）と接続される。 The contact portion 21 has a substantially cylindrical shape and extends in the vertical direction (Z direction) along the central axis C. The outer diameter of the contact portion 21 is smaller than the inner diameter of the ground body portion 11 of the ground contact conductor 10. Further, the contact portion 21 has a slit 211 extending along the extending direction of the central axis C (vertical direction: Z direction). The slits 211 extend to both ends of the tubular contact portion 21 in the Z direction. Therefore, the contact portion 21 has a substantially C-shape having the slit 211 in a plan view along a plane orthogonal to the central axis C. The contact portion 21 is connected to a signal contact conductor (described later) of the plug connector 3 from the other end edge (upper end in FIG. 5).
　導線部２２は、水平方向（ＸＹ方向）に沿って延びる平板状に形成される。導線部２２は、接触部２１の下端部から外方へ、すなわち、中心軸Ｃから離間する方向へ延びる。図５に示す例では、導線部２２は、Ｘ方向が長手方向となるように、中心軸Ｃに対して－Ｘ方向へ延在している。なお、導線部２２の主面の延在方向は水平方向とされているが、少なくとも中心軸Ｃに対して交差する方向であればよく、水平方向に限定されない。 The conductor 22 is formed in a flat plate shape extending in the horizontal direction (XY direction). The conductor portion 22 extends outward from the lower end portion of the contact portion 21, that is, in the direction away from the central axis C. In the example shown in FIG. 5, the conductive wire portion 22 extends in the −X direction with respect to the central axis C such that the X direction is the longitudinal direction. The extending direction of the main surface of the conductor portion 22 is the horizontal direction, but it is not limited to the horizontal direction as long as it is a direction intersecting at least the central axis C.
　導線部２２は、接触部２１寄りの部分から延在方向（Ｘ方向）に沿って、第１の領域２２１、第２の領域２２２、及び、第３の領域２２３がこの順に並んでいる。第１の領域２２１は、接触部２１に対して連結する領域となっている。また、第３の領域２２３は、導線部２２のうち、接触部２１寄りの端部とは逆の端部を含む領域である。第２の領域２２２は、第１の領域２２１及び第３の領域２２３に挟まれる領域である。 In the conductor portion 22, a first region 221, a second region 222, and a third region 223 are arranged in this order from the portion near the contact portion 21 along the extending direction (X direction). The first area 221 is an area connected to the contact portion 21. In addition, the third region 223 is a region that includes an end portion of the conductive wire portion 22 that is opposite to the end portion near the contact portion 21. The second area 222 is an area sandwiched between the first area 221 and the third area 223.
　導線部２２は、長手方向の延在方向の位置によってその幅（Ｙ方向に沿った長さ）が変化している。具体的には、第１の領域２２１、第２の領域２２２、及び、第３の領域２２３は、隣接する領域同士において、その幅が互いに異なっている。具体的には、第１の領域２２１及び第３の領域２２３は、第２の領域２２２と比べて幅が狭い領域となっている。また、第１の領域２２１は、接触部２１に近い方から順に、幅が互いに異なる２つの領域２２１ａ，２２１ｂを有している。領域２２１ａは、領域２２１ｂよりも幅が狭い領域であり、導線部２２の中で最も幅が狭い最小部となっている。また、第２の領域２２２は、導線部２２のうち最も幅が広い最大部を含んでいる。図５（ａ）に示すように、第２の領域２２２のうち幅広となる最大部から接触部２１へ向けて、すなわち、第２の領域２２２の最大部から、第１の領域２２１の領域２２１ｂ，２２１ａに向かうにつれて、導線部２２の幅が段階的に小さくなっている。また、第２の領域２２２のうち幅広となる最大部から、第３の領域２２３へ向かっても導線部２２の幅が小さくなっている。 The width (length along the Y direction) of the conductive wire portion 22 changes depending on the position in the extending direction of the longitudinal direction. Specifically, the widths of the first region 221, the second region 222, and the third region 223 are different from each other in the adjacent regions. Specifically, the first region 221 and the third region 223 have narrower widths than the second region 222. The first region 221 has two regions 221a and 221b having different widths in order from the side closer to the contact portion 21. The region 221a is a region narrower in width than the region 221b, and is the smallest narrowest part in the conductor portion 22. In addition, the second region 222 includes the widest maximum portion of the conductive wire portion 22. As shown in FIG. 5A, from the widest maximum portion of the second region 222 toward the contact portion 21, that is, from the maximum portion of the second region 222 to the region 221b of the first region 221. , 221a, the width of the conductor portion 22 is gradually reduced. Further, the width of the conductive wire portion 22 also decreases from the widest maximum portion of the second region 222 toward the third region 223.
　導線部２２の長手方向の延在方向の位置に応じた幅の変化は、リセプタクルコネクタ２における特性インピーダンスの低下を抑制することを可能としている。高周波領域ではコネクタにおけるインピーダンス整合が求められる。リセプタクルコネクタ２では、グランドコンタクト導体１０の形状、信号コンタクト導体２０の形状、及び、グランドコンタクト導体１０と信号コンタクト導体２０との間の距離によって、各部の特性インピーダンスが変化する。上記の通り、導線部の幅が延在方向の位置によって変化する構造とすることで、特性インピーダンスの微調整が可能となり、特性インピーダンスの変化を小さくすることが可能となる。また、導線部２２の主面の延在方向が中心軸Ｃに対して交差する方向である場合、幅の変化によって特性インピーダンスの調整をより好適に行うことができる。なお、上記実施形態で説明したように導線部２２の長手方向（Ｘ方向）に沿った幅の変化は段階的であってもよいし、例えば、導線部２２をテーパ状として幅が漸次的に変化する構成としてもよい。 The change in width depending on the position in the lengthwise extending direction of the conductor portion 22 makes it possible to suppress a decrease in the characteristic impedance of the receptacle connector 2. In the high frequency range, impedance matching in the connector is required. In the receptacle connector 2, the characteristic impedance of each part changes depending on the shape of the ground contact conductor 10, the shape of the signal contact conductor 20, and the distance between the ground contact conductor 10 and the signal contact conductor 20. As described above, with the structure in which the width of the conductor portion changes depending on the position in the extending direction, it is possible to finely adjust the characteristic impedance and reduce the change in the characteristic impedance. Further, when the extending direction of the main surface of the conductor portion 22 is a direction intersecting with the central axis C, the characteristic impedance can be adjusted more suitably by changing the width. As described in the above embodiment, the change in the width of the conductive wire portion 22 along the longitudinal direction (X direction) may be stepwise. For example, the conductive wire portion 22 may be tapered and the width may be gradually increased. It may be configured to change.
　導線部２２の第２の領域２２２には、貫通孔２２５が設けられている。図５（ａ）に示すように、貫通孔２２５は、導線部２２の延在方向（Ｘ方向）に沿って延びている。また、貫通孔２２５は、延在方向に沿った中央付近に孔径が小さくなる領域２２５ａを有している。ただし、貫通孔２２５の形状は特に限定されない。貫通孔２２５の幅（Ｙ方向に沿った長さ）は、第２の領域２２２における最大部の幅に対して、３０％～７０％程度とすることができるが適宜変更することができる。なお、貫通孔２２５の内部には、後述のハウジング３０の一部が入り込む。貫通孔２２５は、中心軸Ｃに沿った方向から見たときに、グランドコンタクト導体１０のグランド本体部１１と重なる位置に設けられている（図３参照）。これにより、リセプタクルコネクタ２における特性インピーダンスの低下が抑制される。 A through hole 225 is provided in the second area 222 of the conductor portion 22. As shown in FIG. 5A, the through hole 225 extends along the extending direction (X direction) of the conductor portion 22. Further, the through hole 225 has a region 225a having a small hole diameter near the center along the extending direction. However, the shape of the through hole 225 is not particularly limited. The width (length along the Y direction) of the through hole 225 can be set to about 30% to 70% with respect to the width of the maximum portion in the second region 222, but can be appropriately changed. It should be noted that a part of the housing 30 described later enters the inside of the through hole 225. The through hole 225 is provided at a position overlapping the ground main body portion 11 of the ground contact conductor 10 when viewed from the direction along the central axis C (see FIG. 3 ). This suppresses the decrease in the characteristic impedance of the receptacle connector 2.
　接触部２１と導線部２２とは、接触部２１の下方（－Ｚ側）の端縁に対して導線部２２の第１の領域２２１が設けられることにより、接続されている。接触部２１における導線部２２との接続部２１２の周囲には、接続部２１２を挟み込むように配置された２つの切欠部２１３が設けられている。接触部２１の下面２１ｓ及び導線部２２の下面２２ｓは、図３及び図５（ｃ）に示すように同一平面（ＸＹ平面）となるように形成されている。図５（ｃ）に示すように、切欠部２１３は、接触部２１及び導線部２２の上下方向（Ｚ方向）において下方の端面が設けられる高さ位置よりも上方において、接触部２１の内外を連通する開口を形成している。 The contact portion 21 and the conductive wire portion 22 are connected to each other by providing the first region 221 of the conductive wire portion 22 to the lower edge (−Z side) of the contact portion 21. Around the connecting portion 212 of the contact portion 21 with the conducting wire portion 22, two cutout portions 213 are provided so as to sandwich the connecting portion 212. The lower surface 21s of the contact portion 21 and the lower surface 22s of the conductor portion 22 are formed so as to be in the same plane (XY plane) as shown in FIGS. 3 and 5C. As shown in FIG. 5( c ), the cutout portion 213 defines the inside and outside of the contact portion 21 above the height position where the lower end face is provided in the vertical direction (Z direction) of the contact portion 21 and the conductor portion 22. The opening which connects is formed.
　上記の信号コンタクト導体２０は、例えば、金属板を折曲成型することにより作成することができる。信号コンタクト導体２０に対応した形状を有する金属板を準備し、導線部２２と接触部２１との間の接続部２１２において金属板を折り曲げ、さらに、接触部２１となる領域を円筒形に曲げることにより、信号コンタクト導体２０を得ることができる。 The above-mentioned signal contact conductor 20 can be formed by bending a metal plate, for example. A metal plate having a shape corresponding to the signal contact conductor 20 is prepared, the metal plate is bent at the connection portion 212 between the conductor portion 22 and the contact portion 21, and the region to be the contact portion 21 is bent into a cylindrical shape. Thus, the signal contact conductor 20 can be obtained.
　図２及び図３に示すように、信号コンタクト導体２０の接触部２１がグランドコンタクト導体１０のグランド本体部１１の内方となるように、信号コンタクト導体２０が配置される。このとき、信号コンタクト導体２０の接触部２１に接続される導線部２２が、グランドコンタクト導体１０の端子部１２１，１２２の間に設けられて長手方向（Ｘ方向）に沿って延びる空隙Ｓ１内に配置される。このとき、グランドコンタクト導体１０の端子部１２１，１２２の下面１２１ｓ，１２２ｓと、信号コンタクト導体２０の接触部２１の下面２１ｓと、信号コンタクト導体２０の導線部２２の下面２２ｓと、が同一平面（ＸＹ平面）となるように配置される。この状態でセットされた金型に、後述される絶縁性樹脂を注入することによって、グランドコンタクト導体１０及び信号コンタクト導体２０が一体化され、ハウジング３０が形成される。 As shown in FIGS. 2 and 3, the signal contact conductor 20 is arranged so that the contact portion 21 of the signal contact conductor 20 is inside the ground main body portion 11 of the ground contact conductor 10. At this time, the conductor portion 22 connected to the contact portion 21 of the signal contact conductor 20 is provided in the space S1 provided between the terminal portions 121 and 122 of the ground contact conductor 10 and extending along the longitudinal direction (X direction). Will be placed. At this time, the lower surfaces 121s and 122s of the terminal portions 121 and 122 of the ground contact conductor 10, the lower surface 21s of the contact portion 21 of the signal contact conductor 20, and the lower surface 22s of the conductor portion 22 of the signal contact conductor 20 are flush with each other ( XY plane). By injecting an insulating resin, which will be described later, into the mold set in this state, the ground contact conductor 10 and the signal contact conductor 20 are integrated, and the housing 30 is formed.
　なお、接触部２１及び導線部２２の形状は、それぞれ変更することができる。また、接触部２１及び導線部２２は、一の金属板から作成されていなくてもよく、複数の部材の組み合わせによって構成されていてもよい。 The shapes of the contact portion 21 and the conductor portion 22 can be changed respectively. Further, the contact portion 21 and the conductive wire portion 22 do not have to be made of one metal plate, and may be configured by combining a plurality of members.
（ハウジング）
　ハウジング３０は、印刷配線基板ＰＢ上に載置される絶縁性部材となる。 (housing)
The housing 30 serves as an insulating member placed on the printed wiring board PB.
　図２及び図３に示すように、ハウジング３０は、グランドコンタクト導体１０の外部端子部１２に含まれる端子部１２１，１２２の間に設けられる空隙Ｓ１を埋めるように設けられている。図２に示すように、端子部１２１，１２２の間に設けられるハウジング３０の上面３０ｕは、端子部１２１，１２２の上面１２１ｕ，１２２ｕと略同一平面とされていて、ハウジング３０の下面３０ｓは、端子部１２１，１２２の下面１２１ｓ，１２２ｓと略同一平面とされている。 As shown in FIGS. 2 and 3, the housing 30 is provided so as to fill the space S1 provided between the terminal portions 121 and 122 included in the external terminal portion 12 of the ground contact conductor 10. As shown in FIG. 2, the upper surface 30u of the housing 30 provided between the terminal portions 121 and 122 is substantially flush with the upper surfaces 121u and 122u of the terminal portions 121 and 122, and the lower surface 30s of the housing 30 is The lower surfaces 121s and 122s of the terminal portions 121 and 122 are substantially flush with the lower surface.
　また、図３に示すように、ハウジング３０は、グランドコンタクト導体１０のグランド本体部１１の下端に対しても接続している。これにより、グランドコンタクト導体１０のグランド本体部１１及び外部端子部１２の両方がハウジング３０と接続していることになる。さらに、ハウジング３０は、端子部１２１，１２２それぞれの対向面１２１ａ，１２２ａに設けられた傾斜部１２１ｂ，１２２ｂに対して接続している。これにより、ハウジング３０と端子部１２１，１２２との接触面積が大きくなり、ハウジング３０とグランドコンタクト導体１０との密着性が高められる。 Further, as shown in FIG. 3, the housing 30 is also connected to the lower end of the ground body 11 of the ground contact conductor 10. As a result, both the ground body portion 11 and the external terminal portion 12 of the ground contact conductor 10 are connected to the housing 30. Further, the housing 30 is connected to the inclined portions 121b and 122b provided on the facing surfaces 121a and 122a of the terminal portions 121 and 122, respectively. As a result, the contact area between the housing 30 and the terminals 121 and 122 is increased, and the adhesion between the housing 30 and the ground contact conductor 10 is improved.
　また、図２及び図３に示すように、ハウジング３０は、信号コンタクト導体２０の接触部２１の下端に対して接触し、さらに、導線部２２の下面２２ｓを除いてその周囲を埋めるように設けられている。この際、導線部２２の第２の領域２２２に設けられた貫通孔２２５内にもハウジング３０の一部が入り込んでいて、貫通孔２２５を埋めている。この結果、ハウジング３０と信号コンタクト導体２０との密着性が高められる。なお、信号コンタクト導体２０の導線部２２のうち接触部２１とは逆の端部、すなわち、第３の領域２２３の端部は、ハウジング３０に覆われず、外部に露出している。 Further, as shown in FIGS. 2 and 3, the housing 30 is provided so as to contact the lower end of the contact portion 21 of the signal contact conductor 20 and to fill the periphery of the conductor portion 22 except the lower surface 22s. Has been. At this time, part of the housing 30 also enters the through hole 225 provided in the second region 222 of the conductor portion 22 and fills the through hole 225. As a result, the adhesion between the housing 30 and the signal contact conductor 20 is improved. The end of the conductor portion 22 of the signal contact conductor 20 opposite to the contact portion 21, that is, the end of the third region 223 is not covered with the housing 30 and is exposed to the outside.
　ハウジング３０は、接触部２１の内方、及び、接触部２１の外方であってグランド本体部１１の内方にも入り込んで形成される。そして、ハウジング３０は、接触部２１との接続部２１２の周囲、及び、接触部２１の下端を覆うように設けられている。図３に示すように、グランドコンタクト導体１０のグランド本体部１１の内方且つ接触部２１の外方におけるハウジング３０の上面３１ｕは、端子部１２１，１２２の間に設けられるハウジング３０の上面３０ｕと略同一とされている。一方、接触部２１の内方におけるハウジング３０の上面３２ｕは、上面３０ｕ，３１ｕと比べて、上下方向（Ｚ方向）における下面３０Ｓからの位置（高さ）が低くされている。すなわち、上下方向（Ｚ方向）において、上面３２ｕの高さは、上面３０ｕ，３１ｕとの高さと比べて、ハウジング３０のうち印刷配線基板ＰＢに対面する底面（下面３０ｓ）寄りに位置している。このように、接触部２１の内方におけるハウジング３０の上面３２ｕの高さを上面３０ｕ，３１ｕの高さよりも低くすることにより、特に接触部２１の外周面に絶縁性材料が残存し、相手方コネクタとの接続する際に電気的接続性が低下することを防ぐことができる。 The housing 30 is formed inside the contact portion 21 and also outside the contact portion 21 and inside the ground main body portion 11. The housing 30 is provided so as to cover the periphery of the connecting portion 212 with the contact portion 21 and the lower end of the contact portion 21. As shown in FIG. 3, the upper surface 31u of the housing 30 inside the ground body 11 of the ground contact conductor 10 and outside the contact portion 21 is the same as the upper surface 30u of the housing 30 provided between the terminals 121 and 122. It is almost the same. On the other hand, the upper surface 32u of the housing 30 inside the contact portion 21 is lower in position (height) from the lower surface 30S in the vertical direction (Z direction) than the upper surfaces 30u and 31u. That is, in the up-down direction (Z direction), the height of the upper surface 32u is located closer to the bottom surface (lower surface 30s) of the housing 30 facing the printed wiring board PB than the height of the upper surfaces 30u and 31u. .. Thus, by making the height of the upper surface 32u of the housing 30 inside the contact portion 21 lower than the height of the upper surfaces 30u and 31u, the insulating material remains particularly on the outer peripheral surface of the contact portion 21, and the mating connector It is possible to prevent a decrease in electrical connectivity when connecting with.
　図２及び図３に示すように、グランドコンタクト導体１０のグランド本体部１１の内方且つ接触部２１の外方におけるハウジング３０の上面３１ｕの一部には、上面３１ｕよりも表面の高さ位置が低い凹部３３を有している。凹部３３は、信号コンタクト導体２０の接触部２１に設けられたスリット２１１の周囲であって、スリット２１１から連続する領域に形成される。また、凹部３３の表面の高さは、接触部２１の内方におけるハウジング３０の上面３２ｕの高さと同一とされている。凹部３３の形状及び大きさは特に限定されない。ただし、少なくとも、接触部２１の外方におけるスリット２１１の周囲のハウジング３０の表面の高さが、接触部２１の内方におけるハウジング３０の上面３２ｕの高さと略同一となるように、凹部３３の形状及び大きさを設定することができる。なお、前述した高さが同一である、とは、厳密に同一である場合だけではなく、上面３２ｕと凹部３３との高さの差が、上面３１ｕと上面３２ｕとの高さの差より小さい場合も含む。 As shown in FIGS. 2 and 3, a part of the upper surface 31u of the housing 30 inside the ground main body 11 and outside the contact portion 21 of the ground contact conductor 10 has a position of a height higher than the upper surface 31u. Has a low concave portion 33. The recess 33 is formed in a region surrounding the slit 211 provided in the contact portion 21 of the signal contact conductor 20 and continuous with the slit 211. Further, the height of the surface of the recess 33 is the same as the height of the upper surface 32u of the housing 30 inside the contact portion 21. The shape and size of the recess 33 are not particularly limited. However, at least the height of the surface of the housing 30 around the slit 211 outside the contact portion 21 is substantially the same as the height of the upper surface 32u of the housing 30 inside the contact portion 21, so that the recess 33 is formed. The shape and size can be set. It is to be noted that the fact that the heights are the same is not limited to the case where they are exactly the same, and the difference in height between the upper surface 32u and the recess 33 is smaller than the difference in height between the upper surface 31u and the upper surface 32u. Including cases.
［リセプタクルコネクタの組み立て工程］
　リセプタクルコネクタ２の組み立て工程について説明する。まず、グランドコンタクト導体１０及び信号コンタクト導体２０を準備する。上述したように、グランドコンタクト導体１０及び信号コンタクト導体２０は、例えば、金属材料からなる板材をプレス・折曲げ加工することにより作成することができる。 [Receptacle connector assembly process]
The process of assembling the receptacle connector 2 will be described. First, the ground contact conductor 10 and the signal contact conductor 20 are prepared. As described above, the ground contact conductor 10 and the signal contact conductor 20 can be produced by, for example, pressing and bending a plate material made of a metal material.
　次に、グランドコンタクト導体１０及び信号コンタクト導体２０を金型にセットした後、金型内に絶縁性材料（例えば、絶縁性樹脂）を注入し、冷却固化させる。すなわち、インサート成形によってハウジング３０を作成し、これにより、グランドコンタクト導体１０、信号コンタクト導体２０、及びハウジング３０が一体成型されたリセプタクルコネクタ２を製造することができる。 Next, after setting the ground contact conductor 10 and the signal contact conductor 20 in the mold, an insulating material (for example, an insulating resin) is injected into the mold and cooled and solidified. That is, the housing 30 is formed by insert molding, and thus the receptacle connector 2 in which the ground contact conductor 10, the signal contact conductor 20, and the housing 30 are integrally molded can be manufactured.
　金型内に注入される絶縁性材料は、グランドコンタクト導体１０の端子部１２１，１２２の間の空隙Ｓ１を埋めると共に、空隙Ｓ１に配置された信号コンタクト導体２０の導線部２２に設けられた貫通孔２２５内にも入り込む。また、信号コンタクト導体２０の接触部２１の下方に設けられた切欠部２１３を経て接触部２１の内方にも入り込む。その結果、接触部２１の内方の絶縁性材料と、接触部２１の外方の絶縁性材料とが一体化された状態で成型される。 The insulating material injected into the mold fills the void S1 between the terminal portions 121 and 122 of the ground contact conductor 10 and penetrates the conductor wire portion 22 of the signal contact conductor 20 arranged in the void S1. It also goes into the hole 225. Further, the signal contact conductor 20 also enters the inside of the contact portion 21 via the cutout portion 213 provided below the contact portion 21. As a result, the insulating material inside the contact portion 21 and the insulating material outside the contact portion 21 are molded in an integrated state.
　なお、リセプタクルコネクタ２を製造する際、信号コンタクト導体２０を金型にセット後、絶縁性材料の注入時に、信号コンタクト導体２０のスリット２１１の外方、具体的には、ハウジング３０において凹部３３となる領域に、金型内の部品を当接させることができる。このような構成とすることで、信号コンタクト導体２０の位置決めを正確に行うことができる。また、金型が当接している箇所からは注入された絶縁性材料が漏れないようにされている。 When the receptacle connector 2 is manufactured, after the signal contact conductor 20 is set in the mold and the insulating material is injected, outside the slit 211 of the signal contact conductor 20, specifically, the recess 33 in the housing 30. The component in the mold can be brought into contact with the area. With such a configuration, the signal contact conductor 20 can be accurately positioned. Further, the injected insulating material is prevented from leaking from the position where the mold is in contact.
［プラグコネクタ］
　次に、図６～図１２を参照して、プラグコネクタ３の詳細について説明する。図６～図８に示されるように、プラグコネクタ３は、信号コンタクト導体４０と、グランドコンタクト導体６０と、絶縁性のハウジング５０とを備える。プラグコネクタ３は、同軸ケーブルＳＣの端末部分ＴＰに取り付けられる。 [Plug connector]
Next, details of the plug connector 3 will be described with reference to FIGS. 6 to 12. As shown in FIGS. 6 to 8, the plug connector 3 includes a signal contact conductor 40, a ground contact conductor 60, and an insulating housing 50. The plug connector 3 is attached to the terminal portion TP of the coaxial cable SC.
　同軸ケーブルＳＣは、例えば携帯電話等の小型端末に内蔵される各種の信号処理要素（例えば、アンテナ、アンテナを制御する制御チップ、基板等）間で高周波信号を伝送するために、当該小型端末内において用いられる配線である。同軸ケーブルＳＣは、図７に示されるように、導体からなる信号線ＳＣ１と、信号線ＳＣ１の周囲に設けられた導体からなるシールド線ＳＣ３と、信号線ＳＣ１とシールド線ＳＣ３との間に介在する誘電体層ＳＣ２と、シールド線ＳＣ３を覆う絶縁被覆ＳＣ４とを有する。 The coaxial cable SC is provided in a small terminal such as a mobile phone in order to transmit a high frequency signal between various signal processing elements (for example, an antenna, a control chip for controlling the antenna, a substrate, etc.) incorporated in the small terminal. Wiring used in. As shown in FIG. 7, the coaxial cable SC is interposed between the signal line SC1 made of a conductor, the shield line SC3 made of a conductor provided around the signal line SC1, and the signal line SC1 and the shield line SC3. And a dielectric layer SC2 that covers the shield line SC3.
　プラグコネクタ３は、信号線ＳＣ１及びシールド線ＳＣ３が部分的に露出した端末部分ＴＰに取り付けられる。より具体的に、プラグコネクタ３は、信号線ＳＣ１が露出した部分と、シールド線ＳＣ３が露出した部分とが先端から順に並ぶように、絶縁被覆ＳＣ４、シールド線ＳＣ３及び誘電体層ＳＣ２を除去する加工が施された端末部分ＴＰに取り付けられる。端末部分ＴＰに取り付けられたプラグコネクタ３においては、信号コンタクト導体４０は信号線ＳＣ１に導通し、グランドコンタクト導体６０がシールド線ＳＣ３に導通し、ハウジング５０が信号コンタクト導体４０とグランドコンタクト導体６０との間に介在する。 The plug connector 3 is attached to the terminal portion TP where the signal line SC1 and the shield line SC3 are partially exposed. More specifically, the plug connector 3 removes the insulating coating SC4, the shield line SC3, and the dielectric layer SC2 so that the exposed portion of the signal line SC1 and the exposed portion of the shield line SC3 are arranged in order from the tip. It is attached to the processed terminal portion TP. In the plug connector 3 attached to the terminal portion TP, the signal contact conductor 40 is electrically connected to the signal line SC1, the ground contact conductor 60 is electrically connected to the shield line SC3, and the housing 50 is connected to the signal contact conductor 40 and the ground contact conductor 60. Intervenes between.
　端末部分ＴＰに取り付けられたプラグコネクタ３は、印刷配線基板ＰＢに実装されたリセプタクルコネクタ２に接続される。具体的に、プラグコネクタ３は、印刷配線基板ＰＢの厚さ方向（Ｚ方向）に沿ってリセプタクルコネクタ２に装着される。プラグコネクタ３がリセプタクルコネクタ２に装着されると、信号コンタクト導体４０がリセプタクルコネクタ２の信号コンタクト導体２０に電気的に接続され、グランドコンタクト導体６０がリセプタクルコネクタ２のグランドコンタクト導体１０に電気的に接続される。リセプタクルコネクタ２に装着されたプラグコネクタ３は、印刷配線基板ＰＢの厚さ方向（Ｚ方向）に沿ってリセプタクルコネクタ２から取り外し可能である。 The plug connector 3 attached to the terminal portion TP is connected to the receptacle connector 2 mounted on the printed wiring board PB. Specifically, the plug connector 3 is attached to the receptacle connector 2 along the thickness direction (Z direction) of the printed wiring board PB. When the plug connector 3 is mounted on the receptacle connector 2, the signal contact conductor 40 is electrically connected to the signal contact conductor 20 of the receptacle connector 2, and the ground contact conductor 60 is electrically connected to the ground contact conductor 10 of the receptacle connector 2. Connected. The plug connector 3 mounted on the receptacle connector 2 is removable from the receptacle connector 2 along the thickness direction (Z direction) of the printed wiring board PB.
　以下、グランドコンタクト導体６０、信号コンタクト導体４０、及びハウジング５０の具体的構成を順に説明する。 Hereinafter, specific configurations of the ground contact conductor 60, the signal contact conductor 40, and the housing 50 will be described in order.
（グランドコンタクト導体）
　グランドコンタクト導体６０は、図６に示すように、例えば薄板状の金属材料により形成されており、第１部分６０Ａと、第２部分６０Ｂと、連結部分６０Ｃとを有する。第１部分６０Ａは、嵌合部６１と、２つのアーム部６２とを有する。嵌合部６１は、リセプタクルコネクタ２のグランドコンタクト導体１０に嵌合する。例えば嵌合部６１は筒状（円筒状）であり、グランド本体部１１の外周に嵌合する。嵌合部６１の中心軸は、同軸ケーブルＳＣの軸方向に実質的に直交している。 (Ground contact conductor)
As shown in FIG. 6, the ground contact conductor 60 is made of, for example, a thin plate-shaped metal material, and has a first portion 60A, a second portion 60B, and a connecting portion 60C. The first portion 60A has a fitting portion 61 and two arm portions 62. The fitting portion 61 is fitted to the ground contact conductor 10 of the receptacle connector 2. For example, the fitting portion 61 has a tubular shape (cylindrical shape) and fits on the outer circumference of the ground main body 11. The central axis of the fitting portion 61 is substantially orthogonal to the axial direction of the coaxial cable SC.
　嵌合部６１の中心軸方向の一端（以下、「先端」という。）には、図７に示すように、部分的に内径を縮めた絞り部６１１が形成されている。絞り部６１１は、リセプタクルコネクタ２のグランドコンタクト導体１０におけるグランド本体部１１の溝１１ａに嵌合する（図１２参照）。嵌合部６１の中心軸方向の他端（以下、「基端」という。）には、図６に示すように、嵌合部６１の周方向に並ぶ複数の切欠部６１２が形成されている。複数の切欠部６１２には、ハウジング５０の複数の凸部５１２（後述）がそれぞれ嵌め込まれる。なお、「筒状」は必ずしも円筒状に限られない。例えば「筒状」は、多角の筒状であってもよい。また、「筒状」は、周方向の一部が切り欠かれた半筒状を含む。例えば嵌合部６１は、同軸ケーブルＳＣ寄りの部分が切り欠かれた半円筒状である。 As shown in FIG. 7, a narrowed portion 611 having a partially reduced inner diameter is formed at one end (hereinafter referred to as “tip”) in the central axis direction of the fitting portion 61. The narrowed portion 611 fits into the groove 11a of the ground main body portion 11 of the ground contact conductor 10 of the receptacle connector 2 (see FIG. 12). As shown in FIG. 6, a plurality of notches 612 arranged in the circumferential direction of the fitting portion 61 are formed at the other end (hereinafter referred to as “base end”) of the fitting portion 61 in the central axis direction. .. Plural convex portions 512 (described later) of the housing 50 are fitted into the plural notch portions 612, respectively. The "cylindrical shape" is not necessarily limited to the cylindrical shape. For example, the “cylindrical shape” may be a polygonal cylindrical shape. Further, the “cylindrical shape” includes a semi-cylindrical shape with a part cut out in the circumferential direction. For example, the fitting portion 61 has a semi-cylindrical shape in which a portion near the coaxial cable SC is cut out.
　２つのアーム部６２は、上記周方向における嵌合部６１の両端にそれぞれ連なり、互いに対向した状態で嵌合部６１の外方に向かって延びている。２つのアーム部６２は、いずれも同軸ケーブルＳＣの軸方向に沿っている。 The two arm portions 62 are respectively connected to both ends of the fitting portion 61 in the circumferential direction, and extend toward the outside of the fitting portion 61 while facing each other. Both of the two arm portions 62 are along the axial direction of the coaxial cable SC.
　第２部分６０Ｂは、蓋部６３と、クランプ部６４と、バレル部６５とを有する。蓋部６３は、嵌合部６１の外周面に重なることなく嵌合部６１の基端を塞ぐ。具体的に、蓋部６３は、全域に亘って実質的に平板状であり、その周縁部に、嵌合部６１に重なる折り返し等は形成されていない。以下、蓋部６３のうち嵌合部６１の基端に対向する面を「内面」といい、内面の反対側の面を「外面」という。 The second portion 60B has a lid portion 63, a clamp portion 64, and a barrel portion 65. The lid portion 63 closes the base end of the fitting portion 61 without overlapping the outer peripheral surface of the fitting portion 61. Specifically, the lid portion 63 is substantially flat plate-shaped over the entire area, and no folding or the like overlapping the fitting portion 61 is formed on the peripheral portion thereof. Hereinafter, a surface of the lid portion 63 that faces the base end of the fitting portion 61 is referred to as an “inner surface”, and a surface opposite to the inner surface is referred to as an “outer surface”.
　クランプ部６４は、図７に示すように、同軸ケーブルＳＣの端末部分ＴＰのうち、絶縁被覆ＳＣ４が除去された部分（以下、「端末部分ＴＰの保持対象部分」という。）を保持してシールド線ＳＣ３に接触する。例えばクランプ部６４は、同軸ケーブルＳＣの軸方向に沿って嵌合部６１と並んでいる。 As shown in FIG. 7, the clamp portion 64 holds and shields a portion of the terminal portion TP of the coaxial cable SC from which the insulating coating SC4 has been removed (hereinafter referred to as “holding portion of the terminal portion TP”). Touch line SC3. For example, the clamp portion 64 is aligned with the fitting portion 61 along the axial direction of the coaxial cable SC.
　例えばクランプ部６４は、図６に示すように、クランプベース６４１と、２つのクランプアーム６４２とを含む。クランプベース６４１は、蓋部６３に連なる板状部である。なお、ここでの「連なる」とは、直接的に連なる場合の他、他の部分を介して連なることも含む。 For example, the clamp part 64 includes a clamp base 641 and two clamp arms 642 as shown in FIG. The clamp base 641 is a plate-shaped portion that is continuous with the lid 63. It should be noted that the term “being connected” here includes not only the case of being directly connected but also the case of being connected through another portion.
　２つのクランプアーム６４２は、クランプベース６４１の周縁のうち同軸ケーブルＳＣの軸方向に沿う両側面にそれぞれ連なっており、クランプベース６４１の内面（蓋部６３の内面に連なる面）から突出している。２つのクランプアーム６４２は、端末部分ＴＰの保持対象部分を挟んで互いに対向しており、端末部分ＴＰの保持対象部分をクランプベース６４１との間に包み込むように屈曲してシールド線ＳＣ３に接触している。 The two clamp arms 642 are connected to both side surfaces of the clamp base 641 along the axial direction of the coaxial cable SC, and project from the inner surface of the clamp base 641 (the surface connected to the inner surface of the lid 63). The two clamp arms 642 face each other with the holding target portion of the terminal portion TP interposed therebetween, and are bent so as to wrap the holding target portion of the terminal portion TP between the clamp base 641 and the shield wire SC3. ing.
　クランプ部６４は、グランドコンタクト導体６０において嵌合部６１から最遠の端に位置している。より具体的に、グランドコンタクト導体６０においては、２つのクランプアーム６４２が、嵌合部６１の中心軸から最遠の端に位置している。換言すると、グランドコンタクト導体６０は、２つのクランプアーム６４２よりも嵌合部６１の中心軸から遠い位置において絶縁被覆ＳＣ４に接触する部分を有しない。 The clamp portion 64 is located at the farthest end from the fitting portion 61 in the ground contact conductor 60. More specifically, in the ground contact conductor 60, the two clamp arms 642 are located at the farthest end from the central axis of the fitting portion 61. In other words, the ground contact conductor 60 does not have a portion that comes into contact with the insulating coating SC4 at a position farther from the central axis of the fitting portion 61 than the two clamp arms 642.
　バレル部６５は、嵌合部６１とクランプ部６４との間においてハウジング５０を保持する。後述するように、ハウジング５０は、嵌合部６１内に収容される第１部分５１と、２つのアーム部６２の間に配置される第２部分５２とを有する。バレル部６５は、２つのアーム部６２と共に第２部分５２を保持する。 The barrel portion 65 holds the housing 50 between the fitting portion 61 and the clamp portion 64. As will be described later, the housing 50 has a first portion 51 housed in the fitting portion 61 and a second portion 52 arranged between the two arm portions 62. The barrel portion 65 holds the second portion 52 together with the two arm portions 62.
　例えばバレル部６５は、バレルベース６５１と、２つのバレルアーム６５２とを含む。バレルベース６５１は、蓋部６３とクランプベース６４１との間に介在し、これらを連結する板状部である。 For example, the barrel portion 65 includes a barrel base 651 and two barrel arms 652. The barrel base 651 is a plate-shaped portion that is interposed between the lid portion 63 and the clamp base 641 and connects them.
　２つのバレルアーム６５２は、バレルベース６５１の周縁のうち同軸ケーブルＳＣの軸方向に沿う両側面にそれぞれ連なり、バレルベース６５１の内面（蓋部６３の内面に連なる面）から突出している。２つのバレルアーム６５２は、２つのアーム部６２及び第２部分５２を挟んで互いに対向しており、２つのアーム部６２及び第２部分５２をバレルベース６５１との間に包み込むように屈曲している。以下、バレルアーム６５２のうち、屈曲している箇所とバレルベース６５１との間を「バレルアーム６５２の基部」といい、屈曲している箇所よりも先端側を「バレルアーム６５２の先端部」という。 The two barrel arms 652 are respectively connected to both side surfaces of the peripheral edge of the barrel base 651 along the axial direction of the coaxial cable SC, and project from the inner surface of the barrel base 651 (the surface connected to the inner surface of the lid 63). The two barrel arms 652 face each other with the two arm portions 62 and the second portion 52 interposed therebetween, and are bent so as to wrap the two arm portions 62 and the second portion 52 between the barrel base 651. There is. Hereinafter, of the barrel arm 652, a portion between the bent portion and the barrel base 651 is referred to as a “base portion of the barrel arm 652”, and a tip side of the bent portion is referred to as a “tip portion of the barrel arm 652”. ..
　図６に示すように、バレルアーム６５２の基部には、内側に突出した接触爪部６５４が形成されている。接触爪部６５４は、アーム部６２を第２部分５２に向けて押し付ける。これにより、バレル部６５とアーム部６２との電気的な接続が強化される。 As shown in FIG. 6, a contact claw portion 654 that protrudes inward is formed at the base of the barrel arm 652. The contact claw portion 654 presses the arm portion 62 toward the second portion 52. This strengthens the electrical connection between the barrel portion 65 and the arm portion 62.
　同軸ケーブルＳＣの軸方向におけるバレル部６５の長さ（バレルアーム６５２の幅）は、ハウジング５０とクランプ部６４との間に間隙ＧＰ１が生じるように設定されていてもよい。この場合、アーム部６２は、ハウジング５０とクランプ部６４との間（間隙ＧＰ１）において誘電体層ＳＣ２とシールド線ＳＣ３とを更に保持するように構成されていてもよい。この場合、グランドコンタクト導体６０は保持用爪部６５３を更に有してもよい。保持用爪部６５３は、ハウジング５０とクランプ部６４との間においてバレル部６５から内側に突出しシールド線ＳＣ３を誘電体層ＳＣ２に向けて押し付ける。保持用爪部６５３は、ハウジング５０とクランプ部６４との間においてクランプ部６４寄りに位置していてもよい。換言すると、ハウジング５０から保持用爪部６５３までの距離に比較して、クランプ部６４から保持用爪部６５３までの距離が小さくなっていてもよい。例えば保持用爪部６５３は、各バレルアーム６５２の先端部（同軸ケーブルＳＣの基端寄り）に形成されている。 The length of the barrel portion 65 (width of the barrel arm 652) in the axial direction of the coaxial cable SC may be set so that a gap GP1 is formed between the housing 50 and the clamp portion 64. In this case, the arm portion 62 may be configured to further hold the dielectric layer SC2 and the shield line SC3 between the housing 50 and the clamp portion 64 (gap GP1). In this case, the ground contact conductor 60 may further include a holding claw portion 653. The holding claw portion 653 protrudes inward from the barrel portion 65 between the housing 50 and the clamp portion 64 and presses the shield wire SC3 toward the dielectric layer SC2. The holding claw portion 653 may be located closer to the clamp portion 64 between the housing 50 and the clamp portion 64. In other words, the distance from the clamp part 64 to the holding claw 653 may be smaller than the distance from the housing 50 to the holding claw 653. For example, the holding claw portion 653 is formed at the tip of each barrel arm 652 (close to the base end of the coaxial cable SC).
　グランドコンタクト導体６０は、嵌合部６１とバレル部６５との間（すなわち嵌合部６１とバレルアーム６５２との間）に間隙ＧＰ２を有してもよい。更にグランドコンタクト導体６０は、バレル部６５とクランプ部６４との間（すなわちバレルアーム６５２とクランプアーム６４２との間）に間隙ＧＰ３を有してもよい。 The ground contact conductor 60 may have a gap GP2 between the fitting portion 61 and the barrel portion 65 (that is, between the fitting portion 61 and the barrel arm 652). Further, the ground contact conductor 60 may have a gap GP3 between the barrel portion 65 and the clamp portion 64 (that is, between the barrel arm 652 and the clamp arm 642).
　連結部分６０Ｃは、第１部分６０Ａと第２部分６０Ｂとを連結する。例えば連結部分６０Ｃは、同軸ケーブルＳＣの延在方向（－Ｘ方向）の端部において、嵌合部６１の基端と蓋部６３とを連結する。プラグコネクタ３の組み立て前において、連結部分６０Ｃは、蓋部６３が嵌合部６１の中心軸に沿った状態で、第１部分６０Ａと第２部分６０Ｂとを連結する。連結部分６０Ｃは、プラグコネクタ３の組み立て中において、蓋部６３が嵌合部６１の中心軸に直交し、嵌合部６１の基端を塞ぐように、略直角に折り曲げられる。 The connecting portion 60C connects the first portion 60A and the second portion 60B. For example, the connecting portion 60C connects the base end of the fitting portion 61 and the lid 63 at the end portion in the extending direction (−X direction) of the coaxial cable SC. Before the plug connector 3 is assembled, the connecting portion 60C connects the first portion 60A and the second portion 60B with the lid 63 along the central axis of the fitting portion 61. During assembly of the plug connector 3, the connecting portion 60C is bent at a substantially right angle so that the lid portion 63 is orthogonal to the central axis of the fitting portion 61 and closes the base end of the fitting portion 61.
（信号コンタクト導体）
　信号コンタクト導体４０は、図９に示すように、例えば薄板上の金属部材により形成されており、グランドコンタクト導体６０内に収容される。図７～図９に示すように、信号コンタクト導体４０は、接触部４１と、接続部４２と、中間部４３と、延長部４４，４５とを有する。接触部４１は、嵌合部６１内に位置してリセプタクルコネクタ２の信号コンタクト導体２０に接触する。 (Signal contact conductor)
As shown in FIG. 9, the signal contact conductor 40 is formed of, for example, a metal member on a thin plate, and is housed in the ground contact conductor 60. As shown in FIGS. 7 to 9, the signal contact conductor 40 has a contact portion 41, a connection portion 42, an intermediate portion 43, and extension portions 44 and 45. The contact portion 41 is located inside the fitting portion 61 and contacts the signal contact conductor 20 of the receptacle connector 2.
　例えば接触部４１は、接触ベース４１１と、２つの接触アーム４１２とを含む。接触ベース４１１は、嵌合部６１の中心軸に略直交するように配置される。２つの接触アーム４１２は、接触ベース４１１のうち同軸ケーブルＳＣの軸方向に沿う両側面にそれぞれ連なり、嵌合部６１の先端に向けて突出している。２つの接触アーム４１２は互いに対向し、嵌合部６１がリセプタクルコネクタ２におけるグランドコンタクト導体１０のグランド本体部１１に嵌合した状態で、信号コンタクト導体２０の接触部２１を挟持する（図１２参照）。 For example, the contact part 41 includes a contact base 411 and two contact arms 412. The contact base 411 is arranged so as to be substantially orthogonal to the central axis of the fitting portion 61. The two contact arms 412 are connected to both side surfaces of the contact base 411 along the axial direction of the coaxial cable SC, and project toward the tip of the fitting portion 61. The two contact arms 412 face each other, and sandwich the contact portion 21 of the signal contact conductor 20 with the fitting portion 61 fitted to the ground main body portion 11 of the ground contact conductor 10 in the receptacle connector 2 (see FIG. 12). ).
　接続部４２は、バレル部６５によって囲まれた空間の内方に位置して信号線ＳＣ１が接続される。接続部４２は、嵌合部６１の中心軸に垂直に配置された平板状の部分である。接続部４２は、図７に示すように、バレル部６５のバレルベース６５１に対向する第１主面４２１と、第１主面４２１の反対側の第２主面４２２とを有する。第１主面４２１（接続主面）には、信号線ＳＣ１が接続される。信号線ＳＣ１の接続手法の具体例としては、半田付け、カシメ、又は超音波接合等が挙げられる。一例として、信号線ＳＣ１は超音波接合により第１主面４２１に接続される。 The connecting portion 42 is located inside the space surrounded by the barrel portion 65 and is connected to the signal line SC1. The connecting portion 42 is a flat plate-shaped portion arranged perpendicular to the central axis of the fitting portion 61. As shown in FIG. 7, the connecting portion 42 has a first main surface 421 facing the barrel base 651 of the barrel portion 65 and a second main surface 422 opposite to the first main surface 421. The signal line SC1 is connected to the first main surface 421 (connection main surface). Specific examples of the method of connecting the signal line SC1 include soldering, caulking, ultrasonic bonding, and the like. As an example, the signal line SC1 is connected to the first main surface 421 by ultrasonic bonding.
　中間部４３は、接触部４１の接触ベース４１１と接続部４２とを繋ぐ平板状の部分である。中間部４３は、図７に示すように、蓋部６３及びバレルベース６５１に対向する第１主面４３１と、第１主面４３１の反対側の第２主面４３２とを有する。第１主面４３１（中間主面）は第１主面４２１に連なり、第２主面４３２は第２主面４２２に連なっている。中間部４３は、嵌合部６１内からバレル部６５内に亙るよう、すなわち、接触部４１と接続部４２とを繋ぐ方向に延び、接触ベース４１１と接続部４２とを連結する。 The intermediate portion 43 is a flat plate-shaped portion that connects the contact base 411 of the contact portion 41 and the connecting portion 42. As shown in FIG. 7, the intermediate portion 43 has a first main surface 431 facing the lid portion 63 and the barrel base 651, and a second main surface 432 opposite to the first main surface 431. The first main surface 431 (intermediate main surface) is continuous with the first main surface 421, and the second main surface 432 is continuous with the second main surface 422. The intermediate portion 43 extends from the inside of the fitting portion 61 to the inside of the barrel portion 65, that is, in the direction connecting the contact portion 41 and the connecting portion 42, and connects the contact base 411 and the connecting portion 42.
　中間部４３の幅は、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）における位置に応じて変化している。なお、ここでの幅は、同軸ケーブルＳＣの軸方向に直交する方向（Ｙ方向）における長さを意味する。中間部４３の幅は、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）における位置に応じた信号コンタクト導体４０とグランドコンタクト導体６０との間の特性インピーダンス変化を抑制するように設定されている。中間部４３の幅を一定にした場合、中間部４３とグランドコンタクト導体６０との間の特性インピーダンスは、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）における位置に応じて変化する。例えば、グランドコンタクト導体６０までの距離が近い位置においては特性インピーダンスが低くなる。また、グランドコンタクト導体６０のより多くの金属に包囲された位置においても特性インピーダンスが低くなる。このように、グランドコンタクト導体６０との関係により特性インピーダンスが低くなる位置においては、特性インピーダンスが高くなる位置に比較して中間部４３の幅が大きくなっている。 The width of the intermediate portion 43 changes according to the position in the direction (X direction) connecting the contact portion 41 and the connecting portion 42. The width here means the length in the direction (Y direction) orthogonal to the axial direction of the coaxial cable SC. The width of the intermediate portion 43 is set so as to suppress the characteristic impedance change between the signal contact conductor 40 and the ground contact conductor 60 depending on the position in the direction (X direction) connecting the contact portion 41 and the connection portion 42. ing. When the width of the intermediate portion 43 is constant, the characteristic impedance between the intermediate portion 43 and the ground contact conductor 60 changes according to the position in the direction (X direction) connecting the contact portion 41 and the connecting portion 42. For example, the characteristic impedance is low at a position close to the ground contact conductor 60. Further, the characteristic impedance is low even at a position surrounded by more metal of the ground contact conductor 60. Thus, at the position where the characteristic impedance is low due to the relationship with the ground contact conductor 60, the width of the intermediate portion 43 is larger than at the position where the characteristic impedance is high.
　例えば、上記間隙ＧＰ２（嵌合部６１とバレル部６５との間の間隙）においては、バレル部６５によって囲まれた空間の内方等に比較して、中間部４３を包囲するグランドコンタクト導体６０の金属量（例えば単位長さあたりの金属量）が少ない（バレルアーム６５２が存在しないため）。そこで、中間部４３のうち間隙ＧＰ２に位置する部分には、中間部４３のうちバレル部６５内に位置する部分及び嵌合部６１内に位置する部分のいずれよりも幅の大きい拡幅部４３３が設けられている。 For example, in the gap GP2 (the gap between the fitting portion 61 and the barrel portion 65), the ground contact conductor 60 that surrounds the intermediate portion 43 as compared with the inside of the space surrounded by the barrel portion 65 and the like. Has a small amount of metal (for example, the amount of metal per unit length) (because the barrel arm 652 does not exist). Therefore, in the portion of the intermediate portion 43 located in the gap GP2, the widened portion 433 having a larger width than both of the portion of the intermediate portion 43 located in the barrel portion 65 and the portion of the intermediate portion 43 located in the fitting portion 61 is provided. It is provided.
　接続部４２の幅は中間部４３の幅より大きい。接続部４２の幅は、少なくとも中間部４３の幅の平均値より大きければよく、中間部４３の幅の最大値（例えば拡幅部４３３の幅）より大きくてもよい。なお、中間部４３の幅の平均値等を正確に定義するためには、接触部４１と接続部４２との境界、及び接続部４２と中間部４３との境界との特定が必要となるが、接触部４１、接続部４２及び中間部４３は一枚の金属部材により形成されるので目視可能な境界は存在しない。そこで、接触アーム４１２の接続部４２に近い縁４１２ａを接触部４１と中間部４３との境界とする（図９参照）。また信号線ＳＣ１が接続される箇所と幅が同一である部分の接触部４１に近い縁４２ａを中間部４３と接続部４２との境界とする。なお、幅が同一である部分には、角部の面取り等が施された部分も含む。 The width of the connecting portion 42 is larger than the width of the intermediate portion 43. The width of the connecting portion 42 may be at least larger than the average value of the width of the intermediate portion 43, and may be larger than the maximum value of the width of the intermediate portion 43 (for example, the width of the widening portion 433). In order to accurately define the average value of the width of the intermediate portion 43, etc., it is necessary to identify the boundary between the contact portion 41 and the connecting portion 42 and the boundary between the connecting portion 42 and the intermediate portion 43. Since the contact portion 41, the connecting portion 42, and the intermediate portion 43 are formed of a single metal member, there is no visible boundary. Therefore, the edge 412a of the contact arm 412 close to the connecting portion 42 is set as the boundary between the contact portion 41 and the intermediate portion 43 (see FIG. 9). Further, the edge 42a near the contact portion 41 in the portion having the same width as the portion to which the signal line SC1 is connected is defined as the boundary between the intermediate portion 43 and the connecting portion 42. The portion having the same width includes a portion having chamfered corners.
　信号コンタクト導体４０は、第１主面４２１（接続主面）が第１主面４３１（中間主面）に対して窪むように中間部４３と接続部４２との境界部（上記境界の近傍部分）において屈曲していてもよい。 In the signal contact conductor 40, the boundary portion between the intermediate portion 43 and the connection portion 42 (a portion near the boundary) so that the first main surface 421 (connection main surface) is recessed with respect to the first main surface 431 (intermediate main surface). May be bent at.
　延長部４４は、接触ベース４１１から中間部４３に向かう方向とは逆の方向に向けて張り出した平板状の部分である。延長部４５は、接続部４２から中間部４３に向かう方向とは逆の方向に向けて張り出した平板状の部分である。延長部４４，４５は、ハウジング５０による保持代として機能する。 The extension portion 44 is a flat plate-shaped portion that projects in a direction opposite to the direction from the contact base 411 to the intermediate portion 43. The extension portion 45 is a flat plate-shaped portion that projects in a direction opposite to the direction from the connection portion 42 toward the intermediate portion 43. The extension parts 44 and 45 function as a holding allowance by the housing 50.
（ハウジング）
　図７に示すように、ハウジング５０は、信号コンタクト導体４０を保持してグランドコンタクト導体６０内に収容される。例えばハウジング５０は、第１部分５１と第２部分５２とを有する。第１部分５１は嵌合部６１内に収容され、接触部４１と、中間部４３の接触部４１寄りの一部とを保持する。 (housing)
As shown in FIG. 7, the housing 50 holds the signal contact conductor 40 and is accommodated in the ground contact conductor 60. For example, the housing 50 has a first portion 51 and a second portion 52. The first portion 51 is housed in the fitting portion 61 and holds the contact portion 41 and a part of the intermediate portion 43 near the contact portion 41.
　第１部分５１は、接触部４１を嵌合部６１の先端に向けて露出させるための凹部５１１を有する。これにより、接触部４１をリセプタクルコネクタ２における信号コンタクト導体２０の接触部２１に接触させることが可能となっている。また、第１部分５１の先端部（嵌合部６１の先端寄りの部分）の外径は、嵌合部６１の内径よりも小さくなっている。これにより、嵌合部６１と第１部分５１との間にグランドコンタクト導体１０のグランド本体部１１を導入することが可能となっている。 The first portion 51 has a recess 511 for exposing the contact portion 41 toward the tip of the fitting portion 61. As a result, the contact portion 41 can be brought into contact with the contact portion 21 of the signal contact conductor 20 of the receptacle connector 2. Further, the outer diameter of the tip portion of the first portion 51 (portion near the tip of the fitting portion 61) is smaller than the inner diameter of the fitting portion 61. As a result, the ground main body 11 of the ground contact conductor 10 can be introduced between the fitting portion 61 and the first portion 51.
　第２部分５２は、２つのアーム部６２が延びる方向（Ｘ方向）に第１部分５１から突出しており、接続部４２と、接続部４２の近くに位置する中間部４３の一部とを保持する。上述のように第２部分５２の少なくとも一部は、２つのアーム部６２と共にバレル部６５により保持される。 The second portion 52 projects from the first portion 51 in a direction in which the two arm portions 62 extend (X direction), and holds the connection portion 42 and a part of the intermediate portion 43 located near the connection portion 42. To do. As described above, at least a part of the second portion 52 is held by the barrel portion 65 together with the two arm portions 62.
　第２部分５２は、接続部４２とグランドコンタクト導体６０との間に空洞をなすように構成されていてもよい。第２部分５２は、接続部４２に信号線を超音波接合するための開口を有し、その開口により上記空洞の少なくとも一部が構成されていてもよい。第２部分５２は、第１主面４２１側と、第１主面４２１の逆側との両方に開口を有してもよい。ここでの開口は、接続部４２の第１主面４２１又は第２主面４２２の少なくとも一部をハウジング５０外に露出させる開口を意味する。 The second portion 52 may be configured to form a cavity between the connecting portion 42 and the ground contact conductor 60. The second portion 52 may have an opening for ultrasonically connecting the signal line to the connecting portion 42, and at least a part of the cavity may be formed by the opening. The second portion 52 may have openings on both the first main surface 421 side and the opposite side of the first main surface 421. The opening here means an opening that exposes at least a part of the first main surface 421 or the second main surface 422 of the connection portion 42 to the outside of the housing 50.
　例えば第２部分５２は、第１主面４２１をバレルベース６５１に向けて露出させる凹部５２１を有する（図１０参照）。これにより、第２部分５２には、第１主面４２１の一部をハウジング５０外に露出させる開口ＯＰ１が形成されている（図７参照）。凹部５２１は、第２部分５２において、第１部分５１の逆側（同軸ケーブルＳＣの基端寄り）にも開放されている。開口ＯＰ１は、超音波接合用の工具により信号線ＳＣ１を第１主面４２１に押し当てるのに用いられる。開口ＯＰ１によって、第１主面４２１とバレルベース６５１との間に空洞ＣＣ１が構成されている。 For example, the second portion 52 has a recess 521 that exposes the first main surface 421 toward the barrel base 651 (see FIG. 10). As a result, the opening OP1 that exposes a part of the first main surface 421 to the outside of the housing 50 is formed in the second portion 52 (see FIG. 7). The concave portion 521 is also opened in the second portion 52 on the opposite side of the first portion 51 (close to the proximal end of the coaxial cable SC). The opening OP1 is used to press the signal line SC1 against the first main surface 421 with a tool for ultrasonic bonding. The opening OP1 defines a cavity CC1 between the first main surface 421 and the barrel base 651.
　また、第２部分５２のうち、凹部５２１の底面を構成する部分には、第２主面４２２をアーム部６２の先端部に向けて露出させる貫通口５２３が形成されている（図１１参照）。これにより、第２部分５２には、第２主面４２２の一部をハウジング５０外に露出させる開口ＯＰ２が形成されている。開口ＯＰ２は、接続部４２を支持するための工具を超音波接合用の工具の逆側から第２主面４２２に押し当てるのに用いられる。開口ＯＰ２によって、第２主面４２２とバレルアーム６５２の先端部との間に空洞ＣＣ２が構成されている。 Further, a through hole 523 for exposing the second main surface 422 toward the tip portion of the arm portion 62 is formed in a portion of the second portion 52 that constitutes the bottom surface of the recess 521 (see FIG. 11 ). .. As a result, the second portion 52 has an opening OP2 that exposes a part of the second main surface 422 to the outside of the housing 50. The opening OP2 is used to press the tool for supporting the connecting portion 42 against the second main surface 422 from the opposite side of the ultrasonic welding tool. The opening OP2 defines a cavity CC2 between the second main surface 422 and the tip of the barrel arm 652.
　図１０及び図１１に示すように、第１部分５１の基端部（嵌合部６１の基端側の部分）の外周には、周方向に並ぶ複数の凸部５１２が設けられている。上述のように、複数の凸部５１２は、嵌合部６１の複数の切欠部６１２にそれぞれ嵌め込まれる（図６参照）。切欠部６１２に嵌め込まれた凸部５１２は、上述の蓋部６３の周縁よりも外方に突出していてもよい（図１２参照）。換言すると、嵌合部６１の外周に対する蓋部６３の張り出し量は、嵌合部６１の外周に対する凸部５１２の突出量より小さくてもよい。 As shown in FIGS. 10 and 11, a plurality of convex portions 512 arranged in the circumferential direction are provided on the outer periphery of the base end portion of the first portion 51 (portion on the base end side of the fitting portion 61). As described above, the plurality of convex portions 512 are fitted into the plurality of cutout portions 612 of the fitting portion 61 (see FIG. 6 ). The convex portion 512 fitted in the cutout portion 612 may project outward from the peripheral edge of the lid portion 63 (see FIG. 12 ). In other words, the protruding amount of the lid portion 63 with respect to the outer circumference of the fitting portion 61 may be smaller than the protruding amount of the convex portion 512 with respect to the outer circumference of the fitting portion 61.
［プラグコネクタの組み立て工程］
　プラグコネクタ３の組み立て工程について説明する。まず、信号コンタクト導体４０を準備し、信号コンタクト導体４０を金型にセットした後、金型に絶縁性材料（例えば、絶縁性樹脂）を注入し、冷却固化させる。すなわち、インサート成形によって、信号コンタクト導体４０を保持した状態でハウジング５０を作成する。次にグランドコンタクト導体６０を準備し、複数の凸部５１２を嵌合部６１の複数の切欠部６１２にそれぞれ嵌め込むようにして、グランドコンタクト導体６０にハウジング５０をセットする。信号コンタクト導体４０及びグランドコンタクト導体６０は、薄肉の金属板から所定形状の金属部材を打ち抜き、当該金属部材に曲げなどの塑性加工を施すことで作成することができる。上述したように、グランドコンタクト導体６０は、蓋部６３が嵌合部６１の中心軸に沿った状態で、連結部分６０Ｃにより第１部分６０Ａと第２部分６０Ｂとが連結された状態となっている。また、２つのバレルアーム６５２、及び２つのクランプアーム６４２はいずれも屈曲していない。 [Plug connector assembly process]
The assembly process of the plug connector 3 will be described. First, the signal contact conductor 40 is prepared, the signal contact conductor 40 is set in a mold, and then an insulating material (for example, an insulating resin) is injected into the mold to be cooled and solidified. That is, the housing 50 is formed by insert molding while holding the signal contact conductor 40. Next, the ground contact conductor 60 is prepared, and the housing 50 is set in the ground contact conductor 60 by fitting the plurality of convex portions 512 into the plurality of cutout portions 612 of the fitting portion 61, respectively. The signal contact conductor 40 and the ground contact conductor 60 can be formed by punching a metal member having a predetermined shape from a thin metal plate and subjecting the metal member to plastic working such as bending. As described above, the ground contact conductor 60 is in a state in which the first portion 60A and the second portion 60B are connected by the connecting portion 60C with the lid portion 63 along the central axis of the fitting portion 61. There is. Further, neither the two barrel arms 652 nor the two clamp arms 642 are bent.
　次に、ハウジング５０の開口ＯＰ１において、信号線ＳＣ１を接続部４２の第１主面４２１に超音波接合する。具体的には、接続部４２を支持するための工具を開口ＯＰ２に挿入して第２主面４２２に押し当て、超音波接合用の工具を開口ＯＰ１に挿入して信号線ＳＣ１を第１主面４２１に押し当てる。この状態で、超音波接合用の工具により信号線ＳＣ１に超音波を付与し、メッキの溶融等を生じさせて信号線ＳＣ１を第１主面４２１に接合する。 Next, in the opening OP1 of the housing 50, the signal line SC1 is ultrasonically bonded to the first main surface 421 of the connecting portion 42. Specifically, a tool for supporting the connecting portion 42 is inserted into the opening OP2 and pressed against the second main surface 422, and a tool for ultrasonic bonding is inserted into the opening OP1 to connect the signal line SC1 to the first main surface. Press on the surface 421. In this state, ultrasonic waves are applied to the signal line SC1 by an ultrasonic bonding tool to cause melting of the plating or the like to bond the signal line SC1 to the first main surface 421.
　次に、連結部分６０Ｃを折り曲げて蓋部６３により嵌合部６１の基端を塞ぐ。この際に、２つのアーム部６２及びハウジング５０の第２部分５２を２つのバレルアーム６５２内に収容し、端末部分ＴＰの保持対象部分を２つのクランプアーム６４２内に収容する。 Next, the connecting portion 60C is bent and the lid 63 closes the base end of the fitting portion 61. At this time, the two arm portions 62 and the second portion 52 of the housing 50 are accommodated in the two barrel arms 652, and the holding target portion of the terminal portion TP is accommodated in the two clamp arms 642.
　次に、端末部分ＴＰの保持対象部分をクランプベース６４１との間に包み込むように２つのクランプアーム６４２を屈曲させ、２つのアーム部６２及び第２部分５２をバレルベース６５１との間に包み込むように２つのバレルアーム６５２を屈曲させる。以上でプラグコネクタ３の組み立て工程が完了する。 Next, the two clamp arms 642 are bent so that the holding target portion of the terminal portion TP is wrapped between the clamp base 641 and the two arm portions 62 and the second portion 52 are wrapped between the barrel base 651. Bend the two barrel arms 652. This completes the assembly process of the plug connector 3.
［作用効果］
　次に、上述したコネクタ組立体１の作用効果について説明する。 [Effect]
Next, the function and effect of the connector assembly 1 described above will be described.
（リセプタクルコネクタ）
　コネクタ組立体１に含まれるリセプタクルコネクタ２において、グランドコンタクト導体１０は、所定の軸である中心軸Ｃに沿って延びる筒状のグランド本体部１１と、グランド本体部１１のうち中心軸Ｃ方向に沿った一方の端縁に設けられた外部端子部１２と、を有している。また、リセプタクルコネクタ２において、信号コンタクト導体２０は、グランド本体部１１の内方で中心軸Ｃ方向に延びると共に、プラグコネクタ３の信号コンタクト導体（相手方コネクタのコンタクト導体）と接触する接触部２１と、接触部２１のうち中心軸Ｃ方向における一方の端縁（グランド本体部１１において外部端子部１２が設けられる側と同じ側の端縁）から、中心軸Ｃ方向に対して交差する延在方向に延びる略平板状の導線部２２と、を有している。そして、導線部２２は、その一対の主面が中心軸Ｃ方向に交差して延びると共に、その幅が延在方向の位置によって変化する。高周波領域ではコネクタにおける高精度のインピーダンス整合が求められる。上記のリセプタクルコネクタ２のように、導線部２２の幅が延在方向の位置によって変化する構造とすることで、特性インピーダンスの微調整が可能となり、特性インピーダンスの変化を小さくすることが可能となる。また、一対の主面が軸方向に交差して延びているため、リセプタクルコネクタ２の低背化が実現される。そして、一対の主面が軸方向に交差して延びる導線部２２の幅を延在方向の位置によって変化させることで、特性インピーダンスの調整を好適に行うことができる。 (Receptacle connector)
In the receptacle connector 2 included in the connector assembly 1, the ground contact conductor 10 includes a cylindrical ground main body 11 extending along a central axis C that is a predetermined axis, and a central body C of the ground main body 11 in the direction of the central axis C. And an external terminal portion 12 provided at one of the end edges. Further, in the receptacle connector 2, the signal contact conductor 20 extends inwardly of the ground body 11 in the direction of the central axis C, and contacts with the signal contact conductor of the plug connector 3 (contact conductor of the mating connector) 21. An extending direction that intersects with the central axis C direction from one end edge of the contact portion 21 in the central axis C direction (edge on the same side as the side on which the external terminal portion 12 is provided in the ground body portion 11). And a substantially flat plate-shaped conductor portion 22 that extends to the. Then, the conductive wire portion 22 has a pair of main surfaces that intersect and extend in the central axis C direction, and the width thereof changes depending on the position in the extending direction. In the high frequency range, highly accurate impedance matching in the connector is required. With the structure in which the width of the conductor portion 22 changes depending on the position in the extending direction like the receptacle connector 2 described above, the characteristic impedance can be finely adjusted and the change in the characteristic impedance can be reduced. .. Further, since the pair of main surfaces intersects and extends in the axial direction, the height reduction of the receptacle connector 2 is realized. Then, the characteristic impedance can be suitably adjusted by changing the width of the conductive wire portion 22 extending in the axial direction so that the pair of main surfaces intersects with each other in the axial direction.
　また、導線部２２のうち接触部２１に最も近い位置において、導線部２２の幅が最小となる最小部である領域２２１ａが設けられ、最小部から前記延在方向の離間した位置に導線部２２の幅が最大となる最大部を含む第２の領域２２２が設けられている。そして、最小部から最大部に向かうにつれて、導線部２２の幅が徐々に大きくなっている。導線部２２のうち接触部２１に最も近い位置の導線部２２の幅を大きくすると、グランドコンタクト導体１０の影響を受けて特性インピーダンスが小さくなってしまうため、特性インピーダンスの変化幅が大きくなる可能性がある。これに対して、上記のように当該領域の導線部２２の幅を最小とすることで、接触部２１に対する特性インピーダンスの変化を小さくすることができる。また、導線部２２の幅が最大となる最大部が最小部と離間して設けられ、且つ幅が徐々に変化することで、導線部２２の幅の変化に由来する特性インピーダンスの変化を減らすことができる。なお、上記の効果を奏するための幅の変化は、段階的であっても漸次的であってもよい。 In addition, a region 221a that is the smallest portion having the smallest width of the conductor portion 22 is provided at a position closest to the contact portion 21 of the conductor portion 22, and the conductor portion 22 is located at a position apart from the smallest portion in the extending direction. Is provided with a second region 222 including the maximum portion having the maximum width. The width of the conductive wire portion 22 gradually increases from the minimum portion to the maximum portion. When the width of the conductor portion 22 of the conductor portion 22 closest to the contact portion 21 is increased, the characteristic impedance is reduced due to the influence of the ground contact conductor 10, and thus the change width of the characteristic impedance may be increased. There is. On the other hand, by minimizing the width of the conductor portion 22 in the area as described above, it is possible to reduce the change in the characteristic impedance with respect to the contact portion 21. Further, the maximum portion where the width of the conductor portion 22 is maximum is provided separately from the minimum portion, and the width is gradually changed, so that the change of the characteristic impedance due to the change of the width of the conductor portion 22 is reduced. You can Note that the change in width for achieving the above effect may be stepwise or gradual.
　また、上記の導線部２２の最大部には貫通孔２２５が設けられていて、貫通孔２２５の内部にハウジング３０の一部が入り込んでいる。導線部２２のうち幅広となる領域では、特性インピーダンスの低下が生じる可能性が考えられる。これに対して、幅広となる最大部に貫通孔２２５が設けられることで、当該領域での特性インピーダンスの低下が抑制される。さらに、貫通孔２２５の内部にハウジング３０の一部が入り込んでいることで、ハウジング３０と信号コンタクト導体２０との密着性が高められる。 Also, a through hole 225 is provided in the largest part of the above-mentioned conducting wire portion 22, and a part of the housing 30 is inserted inside the through hole 225. It is conceivable that the characteristic impedance may be reduced in the wide area of the conductor portion 22. On the other hand, since the through hole 225 is provided in the widest maximum portion, the decrease in the characteristic impedance in the region is suppressed. Furthermore, since a part of the housing 30 is inserted inside the through hole 225, the adhesion between the housing 30 and the signal contact conductor 20 is enhanced.
　また、貫通孔２２５は、中心軸Ｃ方向から見たときに、グランドコンタクト導体１０のグランド本体部１１と重なる位置に設けられている。グランドコンタクト導体１０のグランド本体部１１と信号コンタクト導体２０の導線部２２とが重なる位置は、両者が近接する領域であるため、特性インピーダンスの低下が生じる可能性がある。これに対して、導線部２２に対して貫通孔２２５を設けることで、グランドコンタクト導体１０のグランド本体部１１に近接する信号コンタクト導体２０を減らすことができるため、特性インピーダンスの低下が抑制される。 Further, the through hole 225 is provided at a position overlapping the ground body 11 of the ground contact conductor 10 when viewed from the central axis C direction. Since the position where the ground main body portion 11 of the ground contact conductor 10 and the conductor wire portion 22 of the signal contact conductor 20 overlap each other is a region in which they are close to each other, there is a possibility that the characteristic impedance may decrease. On the other hand, by providing the through hole 225 in the conductor portion 22, it is possible to reduce the number of signal contact conductors 20 that are close to the ground main body portion 11 of the ground contact conductor 10, so that the characteristic impedance is suppressed from decreasing. ..
　また、リセプタクルコネクタ２は、信号コンタクト導体２０及びグランドコンタクト導体１０と、信号コンタクト導体２０及びグランドコンタクト導体１０を一体化しながら両者間を絶縁するハウジング３０と、を有している。また、グランドコンタクト導体１０は、所定の中心軸Ｃに沿って延びる筒状のグランド本体部１１と、グランド本体部１１のうち中心軸Ｃ方向における一方の端縁に設けられた外部端子部１２と、を有している。信号コンタクト導体２０は、グランド本体部１１の内方で中心軸Ｃ方向に延びると共に、中心軸Ｃ方向に延びるスリット２１１を有する略筒状形状であって、プラグコネクタ３（相手方コネクタ）の信号コンタクト導体４０と接触する接触部２１と、接触部２１のうち中心軸Ｃ方向における一方の端縁（グランド本体部１１において外部端子部１２が設けられる側と同じ側の端縁）から、中心軸Ｃ方向に対して交差する延在方向に延びる導線部２２と、を有している。そして、ハウジング３０は、信号コンタクト導体２０の接触部２１のうち導線部２２が設けられる端縁と接触すると共に、接触部２１とグランド本体部１１との間、及び、接触部２１の内方に入り込み、接触部２１の内側における中心軸Ｃ方向に沿った表面の高さは、接触部２１とグランド本体部１１との間における中心軸Ｃ方向に沿った表面の高さと比べて、ハウジング３０の印刷配線基板ＰＢに対面する底面寄りに位置する。上記の構成を有することで、ハウジング３０を上述のようなインサート成形により形成する際に、ハウジング３０を構成する材料によるバリ等が生じたとしても、このバリが相手方コンタクト導体との接触に影響を与えるリスクを低減させることができる。したがって、ハウジング３０の成形時に由来する接続不良の発生を抑制することができる。 Further, the receptacle connector 2 has a signal contact conductor 20 and a ground contact conductor 10, and a housing 30 that insulates the signal contact conductor 20 and the ground contact conductor 10 while integrating them. The ground contact conductor 10 includes a cylindrical ground main body 11 extending along a predetermined center axis C, and an external terminal portion 12 provided on one end of the ground main body 11 in the central axis C direction. ,have. The signal contact conductor 20 has a substantially tubular shape that extends inwardly of the ground main body 11 in the central axis C direction and has a slit 211 extending in the central axis C direction. The signal contact conductor 20 is a signal contact for the plug connector 3 (counterpart connector). From the contact portion 21 in contact with the conductor 40 and one end edge of the contact portion 21 in the central axis C direction (the end edge on the same side of the ground main body portion 11 as the side on which the external terminal portion 12 is provided), the central axis C And a conducting wire portion 22 extending in the extending direction intersecting the direction. The housing 30 comes into contact with the edge of the contact portion 21 of the signal contact conductor 20 where the conductor wire portion 22 is provided, and also between the contact portion 21 and the ground main body portion 11 and inside the contact portion 21. The height of the surface inside the contact portion 21 along the central axis C direction inside the contact portion 21 is larger than the height of the surface between the contact portion 21 and the ground main body portion 11 along the central axis C direction. It is located closer to the bottom surface facing the printed wiring board PB. With the above configuration, when the housing 30 is formed by the insert molding as described above, even if a burr or the like due to the material forming the housing 30 occurs, the burr affects the contact with the counterpart contact conductor. The risk given can be reduced. Therefore, it is possible to suppress the occurrence of connection failure due to the molding of the housing 30.
　また、接触部２１とグランド本体部１１との間のうちスリット２１１から連続する少なくとも一部の領域において、ハウジング３０の中心軸Ｃ方向に沿った表面の高さが、接触部２１の内側における中心軸Ｃ方向に沿った表面の高さと同じである態様とすることができる。ハウジング３０をインサート成形により形成する場合、例えば樹脂材料等のハウジングを構成する材料が成形時にスリット２１１の内外を移動する。したがって、スリット２１１の内外を移動する材料に由来してバリ等が発生する可能性がある。上記の構成のように、スリット２１１から連続する領域のハウジング３０の高さを接触部２１の内部と同じ高さとすることで、スリット２１１の周囲でバリ等が生じたとしても、このバリがプラグコネクタ３の信号コンタクト導体４０（相手方信号コンタクト導体）との接触に影響を与えるリスクを低減させることができる。したがって、ハウジング３０の成形時に由来する接続不良の発生をさらに抑制することができる。また、リセプタクルコネクタ２を製造する際、信号コンタクト導体２０を金型にセット後、絶縁性材料の注入時にスリット２１１の外方に金型内の部品を当接させることにより、金型内で信号コンタクト導体２０を正確に位置決めすることができる。さらに、スリット２１１の外方に金型内の部品が当接するため、当該箇所からの絶縁性材料の漏れ出しを防ぐことができる。 Further, in at least a part of the area between the contact portion 21 and the ground body portion 11 that is continuous from the slit 211, the height of the surface of the housing 30 along the central axis C direction is the center inside the contact portion 21. The height may be the same as the height of the surface along the direction of the axis C. When the housing 30 is formed by insert molding, a material forming the housing, such as a resin material, moves inside and outside the slit 211 during molding. Therefore, burrs and the like may occur due to the material that moves inside and outside the slit 211. As in the above-described configuration, the height of the housing 30 in the region continuous from the slit 211 is set to the same height as the inside of the contact portion 21, so that even if burrs or the like occur around the slit 211, the burrs will plug into the plug. It is possible to reduce the risk of affecting the contact of the connector 3 with the signal contact conductor 40 (counterpart signal contact conductor). Therefore, it is possible to further suppress the occurrence of connection failure due to the molding of the housing 30. Further, when manufacturing the receptacle connector 2, the signal contact conductor 20 is set in the mold, and then a component in the mold is brought into contact with the outside of the slit 211 at the time of injecting the insulating material, so that a signal is generated in the mold. The contact conductor 20 can be accurately positioned. Furthermore, since the component in the mold contacts the outside of the slit 211, it is possible to prevent the insulating material from leaking out from the relevant portion.
　また、信号コンタクト導体２０の接触部２１のうち導線部２２が設けられる端縁において、導線部２２に連続して切欠部２１３が設けられ、切欠部２１３において接触部２１とグランド本体部１１との間のハウジング３０と、接触部２１の内方のハウジング３０とが連続している。切欠部２１３を介して、接触部２１とグランド本体部１１との間、及び、接触部２１の内方のハウジング３０が連続しているため、ハウジング３０とグランドコンタクト導体１０及び信号コンタクト導体２０との密着性が高められる。そのため、リセプタクルコネクタ２の破損を防ぐことができる。 Further, a cutout portion 213 is provided continuously to the conductive wire portion 22 at an end edge of the contact portion 21 of the signal contact conductor 20 where the conductive wire portion 22 is provided. In the cutout portion 213, the contact portion 21 and the ground main body portion 11 are connected. The housing 30 in between and the housing 30 inside the contact portion 21 are continuous. Since the housing 30 is continuous between the contact portion 21 and the ground main body portion 11 and inside the contact portion 21 via the cutout portion 213, the housing 30, the ground contact conductor 10, and the signal contact conductor 20 are connected to each other. The adhesion of is improved. Therefore, damage to the receptacle connector 2 can be prevented.
（プラグコネクタ）
　プラグコネクタ３において、グランドコンタクト導体６０は、リセプタクルコネクタ２のグランドコンタクト導体１０に嵌合する嵌合部６１と、同軸ケーブルＳＣの端末部分ＴＰのうち絶縁被覆ＳＣ４が除去された部分を保持してシールド線ＳＣ３に接触するクランプ部６４と、を有し、クランプ部６４は、グランドコンタクト導体６０において嵌合部６１から最遠の端に位置している。グランドコンタクト導体６０の一部分が絶縁被覆ＳＣ４を介してシールド線ＳＣ３と対向すると、その部分の静電容量等に起因して、高周波信号の伝送経路における特性インピーダンスの安定性が低下する。これに対し、プラグコネクタ３によれば、シールド線ＳＣ３に接触するクランプ部６４が嵌合部６１から最遠の端に位置するので、グランドコンタクト導体６０において、絶縁被覆ＳＣ４を介してシールド線ＳＣ３と対向する部分が削減される。従って、高周波信号の伝送経路における特性インピーダンスの安定性向上に有効である。 (Plug connector)
In the plug connector 3, the ground contact conductor 60 holds the fitting portion 61 that fits into the ground contact conductor 10 of the receptacle connector 2 and the portion of the terminal portion TP of the coaxial cable SC from which the insulating coating SC4 has been removed. The clamp portion 64 is in contact with the shield wire SC3, and the clamp portion 64 is located at the farthest end from the fitting portion 61 in the ground contact conductor 60. When a part of the ground contact conductor 60 faces the shield wire SC3 via the insulating coating SC4, the stability of the characteristic impedance in the transmission path of the high frequency signal is lowered due to the electrostatic capacity of the part. On the other hand, according to the plug connector 3, since the clamp portion 64 that comes into contact with the shield wire SC3 is located at the farthest end from the fitting portion 61, in the ground contact conductor 60, the shield wire SC3 is provided via the insulating coating SC4. The part facing is reduced. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
　グランドコンタクト導体６０は、嵌合部６１とクランプ部６４との間においてハウジング５０を保持するバレル部６５を更に有してもよく、バレル部６５は、誘電体層ＳＣ２とシールド線ＳＣ３とを更に保持するように構成されていてもよい。クランプ部６４が嵌合部６１から最遠の端に位置する構成においては、絶縁被覆ＳＣ４の外側から同軸ケーブルＳＣを保持する部分（以下、「外皮クランプ」という。）を別途設けることが難しい。これに対し、ハウジング５０とクランプ部６４との間においてバレル部６５が誘電体層ＳＣ２とシールド線ＳＣ３とを更に保持する構成によれば、外皮クランプの代わりに、バレル部６５によってグランドコンタクト導体６０と同軸ケーブルＳＣとの接続部を補強することができる。 The ground contact conductor 60 may further include a barrel portion 65 that holds the housing 50 between the fitting portion 61 and the clamp portion 64, and the barrel portion 65 further includes the dielectric layer SC2 and the shield line SC3. It may be configured to hold. In the configuration in which the clamp portion 64 is located at the farthest end from the fitting portion 61, it is difficult to separately provide a portion that holds the coaxial cable SC from the outside of the insulating coating SC4 (hereinafter, referred to as “outer skin clamp”). On the other hand, according to the configuration in which the barrel portion 65 further holds the dielectric layer SC2 and the shield wire SC3 between the housing 50 and the clamp portion 64, the ground contact conductor 60 is provided by the barrel portion 65 instead of the outer cover clamp. It is possible to reinforce the connection between the cable and the coaxial cable SC.
　グランドコンタクト導体６０は、バレル部６５から内方に突出し同軸ケーブルＳＣを誘電体層ＳＣ２に向けて押す保持用爪部６５３を更に有してもよい。この場合、グランドコンタクト導体６０と同軸ケーブルＳＣとの接続部のバレル部６５による補強効果を更に高めることができる。また、バレル部６５とシールド線ＳＣ３とをよりしっかりと導通させ、特性インピーダンスを更に改善させることができる。 The ground contact conductor 60 may further include a holding claw portion 653 that protrudes inward from the barrel portion 65 and pushes the coaxial cable SC toward the dielectric layer SC2. In this case, the reinforcing effect of the barrel portion 65 at the connecting portion between the ground contact conductor 60 and the coaxial cable SC can be further enhanced. Further, the barrel portion 65 and the shield wire SC3 can be electrically connected more firmly, and the characteristic impedance can be further improved.
　保持用爪部６５３は、ハウジング５０とクランプ部６４との間においてクランプ部６４寄りに位置していてもよい。この場合、保持用爪部６５３により上記補強効果を更に高め、バレル部６５とシールド線ＳＣ３とをよりしっかりと導通させることができる。 The holding claw portion 653 may be located closer to the clamp portion 64 between the housing 50 and the clamp portion 64. In this case, the reinforcing effect can be further enhanced by the holding claw portion 653, and the barrel portion 65 and the shield wire SC3 can be more firmly connected to each other.
　ハウジング５０は、接続部４２に信号線ＳＣ１を超音波接合するための開口ＯＰ１，ＯＰ２を有してもよい。接続部４２に信号線ＳＣ１を超音波接合する構成によれば、半田接合等に比較して接合後の信号線ＳＣ１の姿勢が安定するので、特性インピーダンスの安定性を更に向上させることが可能である。また、半田接合等に比較して接合時の誘電体層ＳＣ２への熱的ダメージが小さいので、信号線ＳＣ１の露出長を短くして誘電体層ＳＣ２の先端を接続部４２に近接させることができる。このため、誘電体層ＳＣ２及びシールド線ＳＣ３のバレル部６５による保持代を長くし、バレル部６５による上記補強効果を更に高めることができる。 The housing 50 may have openings OP1 and OP2 for ultrasonically connecting the signal line SC1 to the connecting portion 42. According to the configuration in which the signal line SC1 is ultrasonically joined to the connection portion 42, the posture of the signal line SC1 after joining is stable as compared with solder joining or the like, so that the stability of the characteristic impedance can be further improved. is there. Further, since the thermal damage to the dielectric layer SC2 at the time of joining is small as compared with solder joining or the like, it is possible to shorten the exposed length of the signal line SC1 and bring the tip of the dielectric layer SC2 closer to the connecting portion 42. it can. Therefore, the holding margin of the dielectric layer SC2 and the shield line SC3 by the barrel portion 65 can be lengthened, and the reinforcing effect of the barrel portion 65 can be further enhanced.
　グランドコンタクト導体６０は、嵌合部６１の外周面に重なることなく嵌合部６１の一端を塞ぐ蓋部６３を更に有してもよい。この場合、蓋部６３が嵌合部６１の外周面に重ならない構造により、静電容量が生じやすい箇所が更に削減される。従って、高周波信号の伝送経路における特性インピーダンスの安定性向上に更に有効である。 The ground contact conductor 60 may further include a lid portion 63 that closes one end of the fitting portion 61 without overlapping the outer peripheral surface of the fitting portion 61. In this case, the structure in which the lid portion 63 does not overlap the outer peripheral surface of the fitting portion 61 further reduces the number of locations where capacitance is likely to occur. Therefore, it is more effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
　信号コンタクト導体４０においては、接触部４１と接続部４２との間における位置に応じた信号コンタクト導体４０とグランドコンタクト導体６０との間の特性インピーダンス変化を抑制するように、接触部４１と接続部４２との間における位置に応じて中間部４３の幅が変化していてもよい。この場合、接続部４２から接触部４１に至るまでの特性インピーダンス変化が、中間部４３の幅によって抑制される。従って、高周波信号の伝送経路における特性インピーダンスの安定性向上に有効である。 In the signal contact conductor 40, the contact portion 41 and the connection portion are arranged so as to suppress the characteristic impedance change between the signal contact conductor 40 and the ground contact conductor 60 depending on the position between the contact portion 41 and the connection portion 42. The width of the intermediate portion 43 may be changed depending on the position between the intermediate portion 43 and 42. In this case, the change in the characteristic impedance from the connecting portion 42 to the contact portion 41 is suppressed by the width of the intermediate portion 43. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
　中間部４３のうち嵌合部６１とバレル部６５との間の間隙ＧＰ２に位置する部分には、中間部４３のうち嵌合部６１内に位置する部分及びバレル部６５内に位置する部分のいずれよりも幅の大きい拡幅部４３３が設けられていてもよい。嵌合部６１とバレル部６５との間においては、バレル部６５内等に比較して、グランドコンタクト導体６０側の金属量が少ない。このため、バレル部６５内等に比較して、信号コンタクト導体４０とグランドコンタクト導体６０との間の特性インピーダンスが高くなる傾向がある。これに対し、中間部４３に拡幅部４３３を設けることによって、接続部４２から接触ベース４１１に至る経路において上記特性インピーダンスが高くなることを抑制することができる。 In the portion of the intermediate portion 43 located in the gap GP2 between the fitting portion 61 and the barrel portion 65, there are a portion of the intermediate portion 43 located in the fitting portion 61 and a portion of the intermediate portion 43 located in the barrel portion 65. The widened portion 433 having a width larger than any of the above may be provided. Between the fitting portion 61 and the barrel portion 65, the amount of metal on the side of the ground contact conductor 60 is smaller than that in the barrel portion 65 or the like. Therefore, the characteristic impedance between the signal contact conductor 40 and the ground contact conductor 60 tends to be higher than that in the barrel portion 65 or the like. On the other hand, by providing the widened portion 433 in the intermediate portion 43, it is possible to prevent the characteristic impedance from increasing in the path from the connection portion 42 to the contact base 411.
　接続部４２の幅は中間部４３の幅よりも大きく、ハウジング５０は、接続部４２とグランドコンタクト導体６０との間に空洞ＣＣ１，ＣＣ２をなすように構成されていてもよい。この場合、接続部４２の幅を大きくすることにより、接続部４２への信号線ＳＣ１の接続の作業性が向上する。その一方で、接続部４２の幅が大きくなると、接続部４２における上記特性インピーダンスは低くなる。これに対し、ハウジング５０が接続部４２とグランドコンタクト導体６０との間に空洞ＣＣ１，ＣＣ２をなすことによって、接続部４２とグランドコンタクト導体６０との間の誘電率が低くなる。このため、接続部４２の幅を大きくしたことに起因して上記特性インピーダンスが低くなることが抑制される。したがって、信号線ＳＣ１の接続の作業性と、特性インピーダンス変化の抑制との両立を図ることができる。 The width of the connecting portion 42 is larger than the width of the intermediate portion 43, and the housing 50 may be configured to form cavities CC1 and CC2 between the connecting portion 42 and the ground contact conductor 60. In this case, the workability of connecting the signal line SC1 to the connecting portion 42 is improved by increasing the width of the connecting portion 42. On the other hand, when the width of the connecting portion 42 increases, the characteristic impedance of the connecting portion 42 decreases. On the other hand, since the housing 50 forms the cavities CC1 and CC2 between the connecting portion 42 and the ground contact conductor 60, the permittivity between the connecting portion 42 and the ground contact conductor 60 becomes low. Therefore, the characteristic impedance is prevented from being lowered due to the increased width of the connection portion 42. Therefore, both workability of connection of the signal line SC1 and suppression of change in characteristic impedance can be achieved.
　接続部４２に信号線ＳＣ１を超音波接合するための開口ＯＰ１，ＯＰ２により空洞ＣＣ１，ＣＣ２の少なくとも一部が構成されていてもよい。この場合、開口ＯＰ１，ＯＰ２が、特性インピーダンス変化の抑制と、超音波接合の作業性向上との両方に寄与する。従って、信号線ＳＣ１の接続の作業性と、特性インピーダンス変化の抑制との両立をより確実に図ることができる。 At least a part of the cavities CC1 and CC2 may be formed by the openings OP1 and OP2 for ultrasonically bonding the signal line SC1 to the connecting portion 42. In this case, the openings OP1 and OP2 contribute to both suppressing the characteristic impedance change and improving the workability of ultrasonic bonding. Therefore, compatibility between workability of connection of the signal line SC1 and suppression of change in characteristic impedance can be more reliably achieved.
　接続部４２は、信号線ＳＣ１を接続するための第１主面４２１を有し、中間部４３は、第１主面４２１に連なる第１主面４３１を有し、信号コンタクト導体４０は、第１主面４２１が第１主面４３１に対して窪むように中間部４３と接続部４２との境界部において屈曲していてもよい。この場合、接続部４２とグランドコンタクト導体６０との間隔と、接続部４２に接続された信号線ＳＣ１とグランドコンタクト導体６０との間隔とのバランスが調整されるので、特性インピーダンス変化をより確実に抑制することができる。 The connection portion 42 has a first main surface 421 for connecting the signal line SC1, the intermediate portion 43 has a first main surface 431 that is continuous with the first main surface 421, and the signal contact conductor 40 has a first The first main surface 421 may be bent at the boundary between the intermediate portion 43 and the connecting portion 42 so as to be recessed with respect to the first main surface 431. In this case, the balance between the distance between the connecting portion 42 and the ground contact conductor 60 and the distance between the signal line SC1 connected to the connecting portion 42 and the ground contact conductor 60 is adjusted, so that the characteristic impedance change is more reliably performed. Can be suppressed.
（プラグコネクタの変形例）
　図１３及び図１４を参照しながら、変形例に係るプラグコネクタ３Ａについて説明する。 (Modification of plug connector)
A plug connector 3A according to a modification will be described with reference to FIGS. 13 and 14.
　プラグコネクタ３Ａは、図１３に示すように、信号コンタクト導体４０Ａと、グランドコンタクト導体６０と、絶縁性のハウジング５０とを備える。プラグコネクタ３Ａは、プラグコネクタ３と比較して、信号コンタクト導体４０Ａの形状が異なる。プラグコネクタ３Ａについても、プラグコネクタ３と同様に、信号線ＳＣ１及びシールド線ＳＣ３が部分的に露出した端末部分ＴＰに取り付けられる。端末部分ＴＰに取り付けられたプラグコネクタ３Ａにおいても、信号コンタクト導体４０Ａは信号線ＳＣ１に導通する。 As shown in FIG. 13, the plug connector 3A includes a signal contact conductor 40A, a ground contact conductor 60, and an insulating housing 50. The plug connector 3A is different from the plug connector 3 in the shape of the signal contact conductor 40A. Similarly to the plug connector 3, the plug connector 3A is attached to the terminal portion TP where the signal line SC1 and the shield line SC3 are partially exposed. Also in the plug connector 3A attached to the terminal portion TP, the signal contact conductor 40A is electrically connected to the signal line SC1.
　プラグコネクタ３Ａの信号コンタクト導体４０Ａは、信号コンタクト導体４０と同様に、接触部４１と、接続部４２と、中間部４３と、延長部４４，４５とを有する（図１４参照）。信号コンタクト導体４０Ａにおける接触部４１、接続部４２、及び延長部４４，４５の形状は、信号コンタクト導体４０と同じであるが、中間部４３の形状が信号コンタクト導体４０と異なる。 Like the signal contact conductor 40, the signal contact conductor 40A of the plug connector 3A has a contact portion 41, a connection portion 42, an intermediate portion 43, and extension portions 44 and 45 (see FIG. 14). The shape of the contact portion 41, the connecting portion 42, and the extension portions 44 and 45 in the signal contact conductor 40A is the same as that of the signal contact conductor 40, but the shape of the intermediate portion 43 is different from that of the signal contact conductor 40.
　信号コンタクト導体４０Ａの中間部４３は、図１３に示すように、第１主面４３１と、第１主面４３１とＺ方向で反対となる第２主面４３２とを有する。また、中間部４３は、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）に沿ってグランドコンタクト導体６０とのＺ方向の距離が変化する。具体的には、中間部４３は、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）に沿って第１主面４３１が凸形状となるような凸部４３５を有する。凸部４３５は、第２主面４３２では凹形状となるような形状とされている。この結果、図１３に示すように、信号コンタクト導体４０Ａは、凸部４３５において接触部４１の基部である接触ベース４１１と比較してグランドコンタクト導体６０とのＺ方向の距離が短くなっている。凸部４３５は、グランドコンタクト導体６０における蓋部６３と、バレル部６５のバレルベース６５１とを接続する領域と対向している。このグランドコンタクト導体６０における対向面６９と、信号コンタクト導体４０Ａの凸部４３５における第１主面４３１との距離が、接触部４１の基部である接触ベース４１１と比較して短くされている。なお、凸部４３５は、中間部４３の幅方向（Ｙ方向）では凹凸等が設けられておらず、グランドコンタクト導体６０とのＹ方向の距離が一律とされている。 As shown in FIG. 13, the intermediate portion 43 of the signal contact conductor 40A has a first main surface 431 and a second main surface 432 opposite to the first main surface 431 in the Z direction. Further, in the intermediate portion 43, the distance in the Z direction from the ground contact conductor 60 changes along the direction (X direction) connecting the contact portion 41 and the connection portion 42. Specifically, the intermediate portion 43 has a convex portion 435 such that the first main surface 431 has a convex shape along the direction (X direction) connecting the contact portion 41 and the connecting portion 42. The convex portion 435 is shaped so as to have a concave shape on the second main surface 432. As a result, as shown in FIG. 13, the signal contact conductor 40A has a shorter distance in the Z direction from the ground contact conductor 60 than the contact base 411 that is the base of the contact portion 41 in the convex portion 435. The convex portion 435 is opposed to a region that connects the lid portion 63 of the ground contact conductor 60 and the barrel base 651 of the barrel portion 65. The distance between the facing surface 69 of the ground contact conductor 60 and the first main surface 431 of the protrusion 435 of the signal contact conductor 40A is shorter than that of the contact base 411 that is the base of the contact portion 41. The convex portion 435 is not provided with irregularities or the like in the width direction (Y direction) of the intermediate portion 43, and the distance from the ground contact conductor 60 in the Y direction is uniform.
　中間部４３の凸部４３５は、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）における位置に応じた信号コンタクト導体４０Ａとグランドコンタクト導体６０との間の特性インピーダンス変化を抑制するように設定されている。中間部４３とグランドコンタクト導体６０とのＺ方向の距離を一定にした場合、中間部４３とグランドコンタクト導体６０との間の特性インピーダンスは、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）における位置に応じて変化し得る。この点について、上記実施形態で説明したプラグコネクタ３の信号コンタクト導体４０では中間部４３の幅（Ｙ方向に沿った長さ）を変更することで、特性インピーダンスの変化を抑制している。一方、変形例に係るプラグコネクタ３Ａでは、信号コンタクト導体４０Ａの中間部とグランドコンタクト導体６０とのＺ方向の距離を調整することで特性インピーダンスの変化を抑制する。一例としては、グランドコンタクト導体６０との関係により特性インピーダンスが高くなる位置においては、凸部４３５を設けることによって特性インピーダンスが低くなる位置と比較して中間部４３の第１主面４３１とグランドコンタクト導体６０とのＺ方向の距離を近くすることで、特性インピーダンスが低くなるように調整する。 The convex portion 435 of the intermediate portion 43 suppresses the characteristic impedance change between the signal contact conductor 40A and the ground contact conductor 60 depending on the position in the direction (X direction) connecting the contact portion 41 and the connection portion 42. It is set. When the distance in the Z direction between the intermediate portion 43 and the ground contact conductor 60 is constant, the characteristic impedance between the intermediate portion 43 and the ground contact conductor 60 is the direction connecting the contact portion 41 and the connecting portion 42 (X direction). ) Can vary depending on the position. With respect to this point, in the signal contact conductor 40 of the plug connector 3 described in the above embodiment, the width of the intermediate portion 43 (the length along the Y direction) is changed to suppress the change in the characteristic impedance. On the other hand, in the plug connector 3A according to the modification, the change in the characteristic impedance is suppressed by adjusting the distance in the Z direction between the intermediate portion of the signal contact conductor 40A and the ground contact conductor 60. As an example, at the position where the characteristic impedance becomes high due to the relationship with the ground contact conductor 60, the first main surface 431 of the intermediate portion 43 and the ground contact are compared with the position where the characteristic impedance becomes low by providing the convex portion 435. The characteristic impedance is adjusted to be low by reducing the distance in the Z direction from the conductor 60.
　このように、プラグコネクタ３Ａの信号コンタクト導体４０Ａの中間部４３は、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）に沿ってグランドコンタクト導体とのＺ方向の距離が変化することとしてもよい。このような構成とすることで、接触部４１から接続部４２に至るまでの特性インピーダンス変化が、中間部４３（特に第１主面４３１）とグランドコンタクト導体６０とのＺ方向の距離の変化によって抑制される。従って、高周波信号の伝送経路における特性インピーダンスの安定性向上に有効である。 As described above, in the middle portion 43 of the signal contact conductor 40A of the plug connector 3A, the distance in the Z direction from the ground contact conductor changes along the direction (X direction) connecting the contact portion 41 and the connection portion 42. Good. With such a configuration, the characteristic impedance change from the contact portion 41 to the connection portion 42 is caused by the change in the Z direction distance between the intermediate portion 43 (particularly the first main surface 431) and the ground contact conductor 60. Suppressed. Therefore, it is effective for improving the stability of the characteristic impedance in the transmission path of the high frequency signal.
　また、接触部４１の基部よりもグランドコンタクト導体６０とのＺ方向の距離が短い凸部４３５を有する場合、凸部４３５では特性インピーダンスを低くすることができる。したがって、凸部４３５は、特性インピーダンスが低くする目的での調整に有効である。 Further, when the convex portion 435 having a shorter distance in the Z direction from the ground contact conductor 60 than the base portion of the contact portion 41 is provided, the convex portion 435 can lower the characteristic impedance. Therefore, the convex portion 435 is effective for adjustment for the purpose of reducing the characteristic impedance.
　なお、凸部４３５とは逆に、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）に沿って第１主面４３１が凹形状となり、第２主面４３２は凸形状となるような凹部を設けることも特性インピーダンスの調整に有効である。図１５に示す信号コンタクト導体４０Ｂは、凸部４３５と接続部４２との間に凹部４３６を有している。凹部４３６では、接触部４１の基部である接触ベース４１１と比較して，第１主面４３１とグランドコンタクト導体６０とのＺ方向の距離が長くなる。このように、接触部４１の基部よりもグランドコンタクト導体６０とのＺ方向の距離が長い凹部４３６を有する場合、凹部４３６では特性インピーダンスを高くすることができる。したがって、凹部４３６は、特性インピーダンスが高くする目的での調整に有効である。 Contrary to the convex portion 435, the first main surface 431 has a concave shape and the second main surface 432 has a convex shape along the direction (X direction) connecting the contact portion 41 and the connecting portion 42. Providing a recess is also effective for adjusting the characteristic impedance. The signal contact conductor 40B shown in FIG. 15 has a concave portion 436 between the convex portion 435 and the connecting portion 42. In the recess 436, the distance in the Z direction between the first main surface 431 and the ground contact conductor 60 is longer than that of the contact base 411 that is the base of the contact portion 41. As described above, when the recess 436 is longer than the base of the contact portion 41 in the Z direction with respect to the ground contact conductor 60, the recess 436 can increase the characteristic impedance. Therefore, the recess 436 is effective for adjustment for the purpose of increasing the characteristic impedance.
　図１６に示す信号コンタクト導体４０Ｃは、中間部４３に凹部４３６のみが設けられている。このように、特性インピーダンスの変化の抑制のために凹部４３６のみを設ける構成としてもよい。 In the signal contact conductor 40C shown in FIG. 16, only the recess 436 is provided in the intermediate portion 43. In this way, only the recess 436 may be provided to suppress the change in the characteristic impedance.
　また、信号コンタクト導体４０Ａ～４０Ｃでは、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）に沿って中間部４３の幅（Ｙ方向に沿った長さ）は一律とされているが、凸部４３５または凹部４３６によって、グランドコンタクト導体６０とのＺ方向の距離を調整することを可能としている。このように、信号コンタクト導体４０Ａ～４０Ｃでは、中間部４３の幅を変更することなく、特性インピーダンスの調整を行うことができる。 Further, in the signal contact conductors 40A to 40C, the width (length along the Y direction) of the intermediate portion 43 is uniform along the direction (X direction) connecting the contact portion 41 and the connecting portion 42, The convex portion 435 or the concave portion 436 makes it possible to adjust the distance in the Z direction from the ground contact conductor 60. As described above, in the signal contact conductors 40A to 40C, the characteristic impedance can be adjusted without changing the width of the intermediate portion 43.
　一方、上記実施形態で説明したプラグコネクタ３のように、中間部４３の幅（Ｙ方向に沿った長さ）を変更することによる特性インピーダンスの調整と、凸部４３５または凹部４３６を設けることによる特性インピーダンスとを組み合わせてもよい。図１７に示す信号コンタクト導体４０Ｄは、中間部４３に凸部４３５が設けられている。また、中間部４３には、中間部４３のうちバレル部６５内に位置する部分及び嵌合部６１内に位置する部分のいずれよりも幅（Ｙ方向に沿った長さ）の大きい拡幅部４３３が設けられている。信号コンタクト導体４０Ｄでは、拡幅部４３３と凸部４３５とが重なっているため、凸部４３５が所謂幅広形状とされている。 On the other hand, like the plug connector 3 described in the above embodiment, by adjusting the characteristic impedance by changing the width (length along the Y direction) of the intermediate portion 43, and by providing the convex portion 435 or the concave portion 436. You may combine with characteristic impedance. In the signal contact conductor 40D shown in FIG. 17, a convex portion 435 is provided on the intermediate portion 43. Further, in the intermediate portion 43, the widened portion 433 having a width (length along the Y direction) larger than both the portion of the intermediate portion 43 located in the barrel portion 65 and the portion of the fitting portion 61. Is provided. In the signal contact conductor 40D, since the widened portion 433 and the convex portion 435 overlap each other, the convex portion 435 has a so-called wide shape.
　図１８に示す信号コンタクト導体４０Ｅでは、中間部４３に凸部４３５及び凹部４３６が設けられている。また、中間部４３には、拡幅部４３３が設けられていて、拡幅部４３３は、凸部４３５及び凹部４３６と重なっている。したがって、信号コンタクト導体４０Ｅでは、凸部４３５及び凹部４３６のいずれも所謂幅広形状とされている。さらに図１９に示す信号コンタクト導体４０Ｆでは、中間部４３に凹部４３６が設けられている。また、中間部４３には、拡幅部４３３が設けられていて、拡幅部４３３は凹部４３６と重なっている。したがって、信号コンタクト導体４０Ｆでは、凸部４３５及び凹部４３６のいずれも所謂幅広形状とされている。 In the signal contact conductor 40E shown in FIG. 18, the intermediate portion 43 is provided with the convex portion 435 and the concave portion 436. Further, the intermediate portion 43 is provided with a widened portion 433, and the widened portion 433 overlaps the convex portion 435 and the concave portion 436. Therefore, in the signal contact conductor 40E, both the convex portion 435 and the concave portion 436 have a so-called wide shape. Furthermore, in the signal contact conductor 40F shown in FIG. 19, a recess 436 is provided in the intermediate portion 43. Further, the widened portion 433 is provided in the intermediate portion 43, and the widened portion 433 overlaps with the concave portion 436. Therefore, in the signal contact conductor 40F, both the convex portion 435 and the concave portion 436 have a so-called wide shape.
　このように、拡幅部４３３を設ける等による幅（Ｙ方向に沿った長さ）の変更による特性インピーダンスの調整と、凸部４３５または凹部４３６を設ける等によるグランドコンタクト導体６０とのＺ方向の距離の変更による特性インピーダンスとは併用することができる。すなわち、接触部４１と接続部４２との間における位置に応じた信号コンタクト導体４０とグランドコンタクト導体６０との間の特性インピーダンス変化を抑制するように、接触部４１と接続部４２との間における位置に応じてグランドコンタクト導体６０と対向する信号コンタクト導体の面積及び距離の少なくとも一方が変化している構成とすることで、高周波信号の伝送経路における特性インピーダンスの安定性を向上させることができる。 As described above, the characteristic impedance is adjusted by changing the width (the length along the Y direction) by providing the widened portion 433 and the distance in the Z direction from the ground contact conductor 60 by providing the convex portion 435 or the concave portion 436. Can be used together with the characteristic impedance due to the change of. That is, in order to suppress the characteristic impedance change between the signal contact conductor 40 and the ground contact conductor 60 depending on the position between the contact portion 41 and the connection portion 42, the contact impedance between the contact portion 41 and the connection portion 42 is suppressed. With the configuration in which at least one of the area and the distance of the signal contact conductor facing the ground contact conductor 60 changes depending on the position, the stability of the characteristic impedance in the transmission path of the high frequency signal can be improved.
　なお、凸部４３５及び凹部４３６を設ける位置は、特性インピーダンスの変化を考慮して適宜変更することができる。また、凸部４３５及び凹部４３６については、接触部４１の基部である接触ベース４１１と比較した場合、または、中間部４３の主要部分と比較した場合の、グランドコンタクト導体６０とのＺ方向の距離の差は適宜変更することができる。また、接触部４１と接続部４２とを繋ぐ方向（Ｘ方向）に沿って凸部４３５及び凹部４３６の長さをどの程度とするか、及び、凸部４３５及び凹部４３６のＺ方向の長さをどの程度とするかについても適宜変更することができる。また、拡幅部４３３との位置関係についても適宜変更することができる。 The positions where the convex portion 435 and the concave portion 436 are provided can be changed as appropriate in consideration of the change in the characteristic impedance. Further, regarding the convex portion 435 and the concave portion 436, the distance in the Z direction from the ground contact conductor 60 when compared with the contact base 411 which is the base portion of the contact portion 41 or when compared with the main portion of the intermediate portion 43. The difference can be changed appropriately. Further, the length of the convex portion 435 and the concave portion 436 along the direction (X direction) connecting the contact portion 41 and the connecting portion 42, and the length of the convex portion 435 and the concave portion 436 in the Z direction. It is also possible to appropriately change how much is set. Also, the positional relationship with the widened portion 433 can be appropriately changed.
　１…コネクタ組立体、２…リセプタクルコネクタ、３，３Ａ…プラグコネクタ、１０…グランドコンタクト導体、１１…グランド本体部、１２…外部端子部、２０…信号コンタクト導体、２１…接触部、２２…導線部、３０…ハウジング、３３…凹部、４０，４０Ａ～４０Ｆ…信号コンタクト導体、４１…接触部、４２…接続部、４３…中間部、５０…ハウジング、６０…グランドコンタクト導体、６１…嵌合部、６３…蓋部、６４…クランプ部、６５…バレル部、４２１，４３１…第１主面、４３３…拡幅部、ＣＣ１，ＣＣ２…空洞、ＯＰ１，ＯＰ２…開口、ＳＣ…同軸ケーブル、ＳＣ１…信号線、ＳＣ３…シールド線、ＳＣ２…誘電体層、ＳＣ４…絶縁被覆、ＴＰ…端末部分。 DESCRIPTION OF SYMBOLS 1... Connector assembly, 2... Receptacle connector, 3, 3A... Plug connector, 10... Ground contact conductor, 11... Ground main body part, 12... External terminal part, 20... Signal contact conductor, 21... Contact part, 22... Conductor wire Part, 30... Housing, 33... Recess, 40, 40A-40F... Signal contact conductor, 41... Contact part, 42... Connection part, 43... Intermediate part, 50... Housing, 60... Ground contact conductor, 61... Fitting part , 63... Lid portion, 64... Clamping portion, 65... Barrel portion, 421, 431... First main surface, 433... Widened portion, CC1, CC2... Cavity, OP1, OP2... Opening, SC... Coaxial cable, SC1... Signal Wire, SC3... Shielded wire, SC2... Dielectric layer, SC4... Insulating coating, TP... Terminal portion.

Claims (9)

  1. 　信号線及びシールド線と、前記信号線と前記シールド線との間に介在する誘電体層と、前記シールド線を覆う絶縁被覆とを有する同軸ケーブルにおいて、前記絶縁被覆が除去され前記信号線及び前記シールド線が部分的に露出した端末部分に取り付けられ、配線基板に実装された相手方コネクタに接続されるコネクタであって、
    　前記信号線と導通する信号コンタクト導体と、
    　前記シールド線と導通するグランドコンタクト導体と、
    　前記信号コンタクト導体と前記グランドコンタクト導体との間に介在する絶縁性のハウジングと、を備え、
    　前記信号コンタクト導体は、
    　前記相手方コネクタの信号コンタクト導体に接触する接触部と、
    　前記信号線が接続される接続部と、
    　前記接触部と前記接続部とを繋ぐ中間部とを有し、
    　前記接触部と前記接続部とを繋ぐ方向における位置に応じた前記信号コンタクト導体と前記グランドコンタクト導体との間の特性インピーダンス変化を抑制するように、前記グランドコンタクト導体と対向する前記信号コンタクト導体の面積及び距離の少なくとも一方が変化している、コネクタ。     In a coaxial cable having a signal wire and a shield wire, a dielectric layer interposed between the signal wire and the shield wire, and an insulating coating covering the shield wire, the insulating coating is removed, and the signal wire and the A connector in which a shield wire is attached to a partially exposed terminal portion and is connected to a mating connector mounted on a wiring board,
    A signal contact conductor conducting with the signal line;
    A ground contact conductor that conducts with the shield wire,
    An insulating housing interposed between the signal contact conductor and the ground contact conductor,
    The signal contact conductor is
    A contact portion that comes into contact with the signal contact conductor of the counterpart connector,
    A connection portion to which the signal line is connected,
    An intermediate portion connecting the contact portion and the connection portion,
    To suppress the characteristic impedance change between the signal contact conductor and the ground contact conductor according to the position in the direction connecting the contact portion and the connection portion, the signal contact conductor facing the ground contact conductor is suppressed. A connector in which at least one of area and distance is changing.
  2. 　前記中間部は、前記接触部と前記接続部とを繋ぐ方向における位置に応じてその幅が変化している、請求項１に記載のコネクタ。 The connector according to claim 1, wherein the intermediate portion has a width that varies depending on a position in a direction connecting the contact portion and the connection portion.
  3. 　前記グランドコンタクト導体は、
    　前記相手方コネクタのグランドコンタクト導体に嵌合する嵌合部と、
    　前記同軸ケーブルの端末部分のうち前記絶縁被覆が除去された部分を保持して前記シールド線に接触するクランプ部と、
    　前記嵌合部と前記クランプ部との間において前記ハウジングを保持するバレル部と、を有し、
    　前記接触部は前記嵌合部内に位置し、前記接続部は前記バレル部内に位置し、
    　前記嵌合部と前記バレル部との間には間隙があり、前記中間部のうち前記間隙に位置する部分には、前記中間部のうち前記嵌合部内に位置する部分及び前記バレル部内に位置する部分のいずれよりも幅の大きい拡幅部が設けられている、請求項２記載のコネクタ。     The ground contact conductor is
    A mating portion that mates with the ground contact conductor of the mating connector,
    A clamp part that holds the part of the coaxial cable at which the insulating coating is removed and is in contact with the shielded wire,
    A barrel portion that holds the housing between the fitting portion and the clamp portion,
    The contact portion is located in the fitting portion, the connection portion is located in the barrel portion,
    There is a gap between the fitting portion and the barrel portion, and a portion of the intermediate portion located in the gap is located in the fitting portion of the intermediate portion and in the barrel portion. The connector according to claim 2, wherein a widened portion having a width larger than any of the portions to be formed is provided.
  4. 　前記接続部の幅は前記中間部の幅よりも大きく、
    　前記ハウジングは、前記接続部と前記グランドコンタクト導体との間に空洞をなすように構成されている、請求項３記載のコネクタ。     The width of the connecting portion is larger than the width of the intermediate portion,
    The connector according to claim 3, wherein the housing is configured to form a cavity between the connecting portion and the ground contact conductor.
  5. 　前記ハウジングは、前記接続部に信号線を超音波接合するための開口を有し、前記開口により前記空洞の少なくとも一部が構成されている、請求項４記載のコネクタ。 The connector according to claim 4, wherein the housing has an opening for ultrasonically bonding a signal line to the connection portion, and at least a part of the cavity is formed by the opening.
  6. 　前記中間部は、前記接触部と前記接続部とを繋ぐ方向に沿って前記グランドコンタクト導体との距離が変化する、請求項１に記載のコネクタ。 The connector according to claim 1, wherein a distance between the intermediate portion and the ground contact conductor changes along a direction connecting the contact portion and the connection portion.
  7. 　前記中間部は、前記接触部の基部よりも前記グランドコンタクト導体との距離が短い凸部を有する、請求項６に記載のコネクタ。 The connector according to claim 6, wherein the intermediate portion has a convex portion having a shorter distance from the ground contact conductor than the base portion of the contact portion.
  8. 　前記中間部は、前記接触部の基部よりも前記グランドコンタクト導体との距離が長い凹部を有する、請求項６に記載のコネクタ。 The connector according to claim 6, wherein the intermediate portion has a concave portion that is longer than the base portion of the contact portion with the ground contact conductor.
  9. 　前記接続部は、前記信号線を接続するための接続主面を有し、
    　前記中間部は、前記接続主面に連なる中間主面を有し、
    　前記信号コンタクト導体は、前記接続主面が前記中間主面に対して窪むように前記中間部と前記接続部との境界部において屈曲している、請求項１～８のいずれか一項記載のコネクタ。     The connection portion has a connection main surface for connecting the signal line,
    The intermediate portion has an intermediate main surface continuous with the connection main surface,
    9. The connector according to claim 1, wherein the signal contact conductor is bent at a boundary portion between the intermediate portion and the connection portion such that the connection main surface is recessed with respect to the intermediate main surface. ..
PCT/JP2020/003804 2019-02-04 2020-01-31 Connector WO2020162373A1 (en)

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JP2020571174A JP7298628B2 (en) 2019-02-04 2020-01-31 connector
US17/391,033 US11967789B2 (en) 2019-02-04 2021-08-02 Coaxial electrical connector with clamping feature for connecting to a cable

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