WO2021177086A1 - Connecteur d'inspection - Google Patents

Connecteur d'inspection Download PDF

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Publication number
WO2021177086A1
WO2021177086A1 PCT/JP2021/006731 JP2021006731W WO2021177086A1 WO 2021177086 A1 WO2021177086 A1 WO 2021177086A1 JP 2021006731 W JP2021006731 W JP 2021006731W WO 2021177086 A1 WO2021177086 A1 WO 2021177086A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
concave surface
adapter
central conductor
inspection connector
Prior art date
Application number
PCT/JP2021/006731
Other languages
English (en)
Japanese (ja)
Inventor
大輝 菊地
寿 山河
Original Assignee
株式会社村田製作所
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 株式会社村田製作所 filed Critical 株式会社村田製作所
Priority to CN202180016280.3A priority Critical patent/CN115152101A/zh
Priority to JP2022505133A priority patent/JP7298770B2/ja
Priority to TW110107995A priority patent/TWI807268B/zh
Publication of WO2021177086A1 publication Critical patent/WO2021177086A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • 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
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • 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
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
    • H01R24/44—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising impedance matching means

Definitions

  • the present invention relates to an inspection connector.
  • FIG. 10 is a cross-sectional view of the coaxial connector 500 of Patent Document 1.
  • the coaxial connector 500 includes a coaxial cable 502, an adapter 510, and a connector main body 512.
  • the coaxial cable 502 includes a center conductor 503, a twill conductor 504, and an insulating material layer 505.
  • the twill conductor 504 is provided around the center conductor 503.
  • the insulating material layer 505 insulates the center conductor 503 and the twill conductor 504.
  • the tip of the coaxial cable 502 includes a portion P103 where the twill conductor 504 is exposed, a portion P102 where the insulating material layer 505 is exposed, and a portion P101 where the center conductor 503 is exposed.
  • the adapter 510 is attached to the portion P102 where the insulating material layer 505 is exposed.
  • the adapter 510 is made of a resin material.
  • the connector body 512 includes a collar 514. The adapter 510 is attached to the collar 514 of the connector body 512.
  • the adapter 510 described in Patent Document 1 can be easily attached to the coaxial cable 502 without welding.
  • the characteristic impedance tends to fluctuate at the boundary between the portion P103 where the twill-like conductor 504 is exposed and the portion P102 where the insulating material layer 505 is exposed.
  • the portion through which the high frequency signal is transmitted is referred to as a transmission unit.
  • the part maintained at the ground potential is called the ground part.
  • the transmission portion In the portion P103 where the twill conductor 504 is exposed, the transmission portion is the center conductor 503.
  • the ground portion is a twill-like conductor 504. Therefore, in the portion where the twill-like conductor 504 is exposed, the distance between the transmission portion and the ground portion is the distance D1.
  • the transmission portion is the center conductor 503.
  • the collar 514 is a metal member
  • the ground portion is the collar 514. Further, when the collar 514 is not a metal member, the ground portion does not exist.
  • the distance between the transmission portion and the ground portion is a distance D2 larger than the distance D1 (the former case is shown).
  • an object of the present invention is to provide an inspection connector capable of suppressing fluctuations in the characteristic impedance in a portion of the inspection connector where the characteristic impedance is likely to change.
  • the inspection connector is A central conductor wire, an outer conductor provided around the central conductor wire, and a third unit provided between the central conductor wire and the outer conductor and insulating the central conductor wire and the outer conductor.
  • 1 Coaxial cable containing an insulating member and A first housing which is a conductor member having a cylindrical shape having a central axis extending in the vertical direction, and the coaxial cable extends in the vertical direction in the first housing.
  • a second housing which is a conductor member having a cylindrical shape having a central axis extending in the vertical direction, and the second housing arranged under the first housing.
  • An adapter that is fixed to the lower end of the first housing and is fixed to the upper end of the second housing and is a conductor member that supports the outer conductor of the coaxial cable.
  • a central conductor portion electrically connected to the central conductor wire of the coaxial cable,
  • the second insulating member provided under the adapter and supporting the central conductor portion so that the central conductor portion extends in the vertical direction in the second housing.
  • the lower surface of the adapter includes a concave surface having an upwardly recessed shape.
  • the concave surface has a circular shape when viewed upward.
  • the maximum value of the diameter of the concave surface when viewed upward is smaller than the diameter of the inner peripheral surface of the second housing.
  • the minimum value of the diameter of the concave surface when viewed upward is larger than the diameter of the inner peripheral surface of the outer conductor.
  • the central conductor wire is located within the outer edge of the concave surface when viewed upward.
  • the inspection connector is A central conductor wire, an outer conductor provided around the central conductor wire, and a third unit provided between the central conductor wire and the outer conductor and insulating the central conductor wire and the outer conductor.
  • 1 Coaxial cable containing an insulating member and A first housing which is a conductor member having a cylindrical shape having a central axis extending in the vertical direction, and the coaxial cable extends in the vertical direction in the first housing.
  • a second housing which is a conductor member having a cylindrical shape having a central axis extending in the vertical direction, and the second housing provided under the first housing.
  • An adapter that is fixed to the lower end of the first housing and is fixed to the upper end of the second housing and is a conductor member that supports the outer conductor of the coaxial cable.
  • a central conductor portion electrically connected to the central conductor wire of the coaxial cable,
  • the second insulating member provided under the adapter and supporting the central conductor portion so that the central conductor portion extends in the vertical direction in the second housing.
  • Members and A ring member which is a conductive member having an annulus shape, Is equipped with
  • the lower surface of the adapter includes a concave surface having an upwardly recessed shape.
  • the concave surface has a circular shape when viewed upward.
  • the central conductor wire is located within the outer edge of the concave surface when viewed upward.
  • the outer conductor and the first insulating member do not exist around the central conductor wire.
  • the ring member is provided around the central conductor wire in a section of the coaxial cable located between the upper end of the concave surface and the lower end of the concave surface in a state of being electrically connected to the central conductor wire. ing.
  • the present invention it is possible to suppress fluctuations in the characteristic impedance in a portion of the inspection connector where the characteristic impedance is likely to change.
  • FIG. 1 is a front view of the inspection connector 10.
  • FIG. 2 is an exploded view of the inspection connector 10.
  • FIG. 3 is a cross-sectional view of the inspection connector 10.
  • FIG. 4 is a cross-sectional view of the vicinity of the adapter 20.
  • FIG. 5 is a schematic view of the cross-sectional view of FIG.
  • FIG. 6 is a cross-sectional view of the inspection connector 10a in the vicinity of the adapter 20.
  • FIG. 7 is a cross-sectional view of the inspection connector 10b in the vicinity of the adapter 20.
  • FIG. 8 is a cross-sectional view of the inspection connector 10c in the vicinity of the bushing 26.
  • FIG. 9 is a cross-sectional view of the inspection connector 10d in the vicinity of the adapter 20.
  • FIG. 10 is a cross-sectional view of the coaxial connector 500 of Patent Document 1.
  • FIG. 1 is a front view of the inspection connector 10.
  • FIG. 2 is an exploded view of the inspection connector 10.
  • FIG. 3 is a cross-sectional view of the inspection connector 10.
  • FIG. 4 is a cross-sectional view of the vicinity of the adapter 20. In FIG. 4, the concave surface 100 and the convex surface 120 are shown by thick lines.
  • the up / down UD direction, the left / right LR direction, and the front / back FB direction are defined.
  • the vertical direction, the horizontal direction, and the front-back direction are the directions defined for the sake of explanation. Therefore, the vertical direction, the horizontal direction, and the front-rear direction of the inspection connector 10 in actual use do not have to coincide with the vertical direction, the left-right direction, and the front-rear direction of FIGS. 1 to 3.
  • the shafts and members extending in the front-rear direction do not necessarily indicate only the shafts and members that are parallel to the front-rear direction.
  • a shaft or member extending in the front-rear direction is a shaft or member inclined in a range of ⁇ 45 ° with respect to the front-rear direction.
  • a shaft or member extending in the vertical direction is a shaft or member inclined in a range of ⁇ 45 ° with respect to the vertical direction.
  • a shaft or member extending in the left-right direction is a shaft or member inclined in a range of ⁇ 45 ° with respect to the left-right direction.
  • the first member and the second member arranged in the front-rear direction indicate the following states.
  • both the first member and the second member are arranged on an arbitrary straight line indicating the front-rear direction.
  • the first member and the second member arranged in the front-rear direction when viewed in the vertical direction indicate the following states.
  • both the first member and the second member are arranged on an arbitrary straight line indicating the front-rear direction.
  • first member and the second member when the first member and the second member are viewed from a left-right direction different from the vertical direction, one of the first member and the second member may not be arranged on an arbitrary straight line indicating the front-rear direction. ..
  • the first member and the second member may be in contact with each other.
  • the first member and the second member may be separated from each other.
  • a third member may be present between the first member and the second member. This definition also applies to directions other than the front-back direction.
  • the first member to the third member are a part of the inspection connector.
  • the fact that the first member is arranged in front of the second member means the following state. At least a part of the first member is arranged in a region through which the second member translates in the forward direction. Therefore, the first member may be contained in the region through which the second member passes when it is translated in the forward direction, or protrudes from the region through which the second member is translated when it is translated in the forward direction. May be good. In this case, the first member and the second member are arranged in the front-rear direction. This definition also applies to directions other than the front-back direction.
  • the first member when the first member is arranged in front of the second member when viewed in the left-right direction, it means the following state.
  • the first member and the second member When viewed in the left-right direction, the first member and the second member are lined up in the front-rear direction, and when viewed in the left-right direction, the portion of the first member facing the second member is the second member. Placed in front.
  • the first member and the second member do not have to be arranged in the front-rear direction in three dimensions. This definition applies to directions other than the front-back direction.
  • the fact that the first member is arranged before the second member means the following state.
  • the first member is arranged in front of a plane that passes through the front end of the second member and is orthogonal to the front-rear direction.
  • the first member and the second member may or may not be arranged in the front-rear direction.
  • This definition also applies to directions other than the front-back direction.
  • each part of the first member is defined as follows.
  • the front part of the first member means the front half of the first member.
  • the rear part of the first member means the rear half of the first member.
  • the left portion of the first member means the left half of the first member.
  • the right portion of the first member means the right half of the first member.
  • the upper part of the first member means the upper half of the first member.
  • the lower part of the first member means the lower half of the first member.
  • the front end of the first member means the end in the front direction of the first member.
  • the rear end of the first member means the rear end of the first member.
  • the left end of the first member means the left end of the first member.
  • the right end of the first member means the right end of the first member.
  • the upper end of the first member means the upper end of the first member.
  • the lower end of the first member means the lower end of the first member.
  • the front end portion of the first member means the front end portion of the first member and its vicinity.
  • the rear end portion of the first member means the rear end portion of the first member and its vicinity.
  • the left end portion of the first member means the left end portion of the first member and its vicinity.
  • the right end portion of the first member means the right end portion of the first member and its vicinity.
  • the upper end portion of the first member means the upper end portion of the first member and its vicinity.
  • the lower end of the first member means the lower end of the first member and its vicinity.
  • first member When any two members in the present specification are defined as a first member and a second member, the relationship between the two members has the following meaning.
  • the fact that the first member is supported by the second member means that the first member is immovably attached to (that is, fixed) to the second member with respect to the second member. This includes the case where the first member is movably attached to the second member with respect to the second member. Further, the first member is supported by the second member when the first member is directly attached to the second member and when the first member is attached to the second member via the third member. Includes both if it is.
  • the first member when the first member is fixed to the second member, the first member is attached (that is, fixed) to the second member so as not to be movable with respect to the second member.
  • the case is included, and the case where the first member is movably attached to the second member with respect to the second member is not included.
  • the first member is fixed to the second member when the first member is directly attached to the second member and when the first member is attached to the second member via the third member. Includes both if it is.
  • the first member and the second member are electrically connected means that electricity is conducted between the first member and the second member. Therefore, the first member and the second member may be in contact with each other, or the first member and the second member may not be in contact with each other. When the first member and the second member are not in contact with each other, a third member having conductivity in contact with the first member and the second member is provided.
  • the diameter means the diameter of a member having a circular shape.
  • the circular member includes not only a member having a perfect circle but also a member having a shape close to a perfect circle slightly deviating from the perfect circle due to manufacturing variations or the like.
  • the diameter means the maximum value among the diameters of the members having a circular shape.
  • the inspection connector 10 is used for measuring a high frequency signal transmitted in an electronic device.
  • the inspection connector 10 is used, for example, for measuring a high frequency signal having a frequency of several hundred MHz to several tens of GHz.
  • the inspection connector 10 includes a plunger 12 (second housing), a housing 14 (first housing), a flange 16, a slide member 17, a spring 18, an adapter 20, a central conductor portion 22, and a bushing 24 ( It includes an insulating member (see FIGS. 2 and 3), a bushing 26 (see FIG. 3), and a coaxial cable 202.
  • the coaxial cable 202 includes a central conductor wire 204, an outer conductor 206, an insulator 208, and a coating film 210 (see FIG. 3).
  • the center conductor wire 204 is the core wire of the coaxial cable 202. Therefore, the central conductor wire 204 is located at the center of the coaxial cable 202.
  • the central conductor wire 204 is made of a low resistance conductor.
  • the center conductor wire 204 is made of, for example, copper.
  • the outer conductor 206 is provided around the central conductor wire 204. Therefore, the outer conductor 206 has an annular shape in a cross section orthogonal to the direction in which the coaxial cable 202 extends. Such an outer conductor 206 is manufactured, for example, by knitting a thin conducting wire.
  • the outer conductor 206 is made of a low resistance conductor.
  • the outer conductor 206 is made of, for example, copper.
  • the insulator 208 (first insulating member) insulates the central conductor wire 204 and the outer conductor 206.
  • the insulator 208 is provided between the central conductor wire 204 and the outer conductor 206.
  • the insulator 208 is provided around the central conductor wire 204.
  • the insulator 208 is surrounded by an outer conductor 206.
  • the insulator 208 has an annular shape in a cross section orthogonal to the direction in which the coaxial cable 202 extends.
  • the insulator 208 is made of an insulating resin. Insulator 208 is made of, for example, polyethylene. Further, the insulator 208 is provided with a plurality of holes so that the coaxial cable 202 can be flexibly deformed.
  • the coating film 210 is provided around the outer conductor 206. Therefore, the coating film 210 has an annular shape in a cross section orthogonal to the direction in which the coaxial cable 202 extends.
  • the coating film 210 is made of an insulating resin.
  • the coating 210 is made of, for example, polyethylene.
  • the coating film 210 is not provided with a plurality of holes, or is provided with fewer holes than the insulator 208. Therefore, the coating film 210 is less likely to be deformed than the insulator 208. Therefore, the Young's modulus of the coating 210 is larger than the Young's modulus of the insulator 208.
  • the central conductor wire 204 is exposed by removing the outer conductor 206, the insulator 208, and the coating film 210.
  • the portion where the central conductor wire 204 is exposed is referred to as a central conductor wire exposed portion P11.
  • the insulator 208 is exposed by removing the outer conductor 206 and the coating film 210 on the central conductor wire exposed portion P11.
  • the portion where the insulator 208 is exposed is referred to as an insulator exposed portion P12.
  • the outer conductor 206 is exposed by removing the coating film 210 on the insulator exposed portion P12.
  • the portion where the outer conductor 206 is exposed is referred to as an outer conductor exposed portion P13.
  • the housing 14 is a conductor member having a tubular shape having a central axis extending in the vertical direction. As shown in FIG. 3, the housing 14 is provided with a through hole H2 extending in the vertical direction. The through hole H2 penetrates from the upper end to the lower end of the housing 14. The coaxial cable 202 extends in the vertical direction in the housing 14.
  • a housing 14 is made of a conductive metal.
  • the housing 14 is made of, for example, SUS.
  • the plunger 12 is a conductor member having a cylindrical shape having a central axis extending in the vertical direction.
  • the plunger 12 is provided with a through hole H1 extending in the vertical direction.
  • the through hole H1 penetrates from the upper end to the lower end of the plunger 12.
  • the plunger 12 is provided below the housing 14.
  • the central axis of the plunger 12 coincides with the central axis of the housing 14.
  • Such a plunger 12 is made of a highly conductive metal.
  • the plunger 12 is made of, for example, SUS.
  • the adapter 20 is a conductor member having a cylindrical shape having a central axis extending in the vertical direction.
  • the adapter 20 has a lower surface S1.
  • the lower surface S1 is a portion that can be visually recognized by the observer in the adapter 20 when viewed upward.
  • the adapter 20 is provided with a through hole H3 extending in the vertical direction.
  • the through hole H3 penetrates from the upper end to the lower end of the adapter 20.
  • the adapter 20 is fixed to the lower end of the housing 14. Specifically, the lower end of the housing 14 is inserted into the upper part of the adapter 20.
  • the adapter 20 and the housing 14 are fixed by press fitting. Further, the adapter 20 is fixed to the upper end portion of the plunger 12.
  • the lower portion of the adapter 20 is inserted into the upper end portion of the plunger 12.
  • the adapter 20 and the plunger 12 are fixed by press fitting. Further, the adapter 20 and the outer conductor 206 are electrically connected by solder. It is preferable that the plunger 12 and the adapter 20 are also electrically connected by solder.
  • the plunger 12, the adapter 20, and the housing 14 are arranged in this order from bottom to top.
  • the adapter 20 is in contact with the outer peripheral surface of the housing 14 at the lower end of the housing 14, and is in contact with the inner peripheral surface of the plunger 12 at the upper end of the plunger 12. Further, the plunger 12, the adapter 20 and the housing 14 are electrically connected to each other.
  • the central axis of the plunger 12, the central axis of the adapter 20, and the central axis of the housing 14 are the same.
  • Such an adapter 20 is made of a highly conductive metal.
  • the adapter 20 is made of, for example, SUS.
  • the adapter 20 supports the outer conductor 206 of the coaxial cable 202.
  • the outer conductor 206 is formed on the upper surface of the adapter 20 and enters the recess 300 having a downwardly recessed shape and is supported by the adapter 20. More specifically, the outer conductor exposed portion P13 of the coaxial cable 202 extends in the vertical direction in the adapter 20.
  • the outer conductor 206 of the coaxial cable 202 is fixed to the adapter 20 by soldering. As a result, the adapter 20 is electrically connected to the outer conductor 206.
  • the central conductor portion 22 is electrically connected to the central conductor wire 204 of the coaxial cable 202. Specifically, the central conductor wire exposed portion P11 is inserted into the upper end portion of the central conductor portion 22. The central conductor wire 204 is fixed to the upper end portion of the central conductor portion 22 by soldering.
  • the central conductor portion 22 extends in the vertical direction in the plunger 12. The lower end of the central conductor portion 22 projects downward from the lower end of the plunger 12.
  • the central conductor portion 22 includes a barrel 220, a spring 222, and a measuring pin 224.
  • the barrel 220 is a conductor member having a cylindrical shape having a central axis extending in the vertical direction.
  • the lower end of the barrel 220 is open.
  • the upper end of the barrel 220 is closed.
  • the upper end of the barrel 220 is electrically connected to the lower end of the central conductor wire 204.
  • the lower end of the central conductor wire 204 is fixed to the upper end of the barrel 220 by soldering.
  • the barrel 220 holds a spring 222 and a measurement pin 224, which will be described later.
  • Such a barrel 220 is made of a highly conductive metal.
  • the barrel 220 is made of, for example, brass.
  • the measurement pin 224 is a rod-shaped conductor member extending in the vertical direction.
  • the lower end of the measuring pin 224 projects downward from the lower end of the plunger 12.
  • the upper portion of the measuring pin 224 is inserted into the barrel 220 from the lower end of the barrel 220.
  • the measurement pin 224 can slide in the vertical direction with respect to the barrel 220 by being guided by the barrel 220.
  • Such a measuring pin 224 is made of a highly conductive metal.
  • the measuring pin 224 is made of, for example, brass.
  • the spring 222 is provided in the barrel 220.
  • the upper end of the spring 222 is in contact with the upper end of the inner peripheral surface of the barrel 220.
  • the lower end of the spring 222 is in contact with the upper end of the measuring pin 224.
  • the spring 222 pushes the measuring pin 224 downward.
  • the spring 222 contracts.
  • the measurement pin 224 is displaced upward with respect to the barrel 220.
  • the bushing 24 is a cylindrical insulating member (second insulating member) having a central axis extending in the vertical direction.
  • the bushing 24 has an upper surface S2 as shown in FIG.
  • the upper surface S2 is a portion that can be visually recognized by the observer in the bushing 24 when viewed downward.
  • the bushing 24 is provided with a through hole H4 extending in the vertical direction.
  • the through hole H4 penetrates from the upper end to the lower end of the bushing 24.
  • the bushing 24 is provided below the adapter 20.
  • the bushing 24 is in contact with the adapter 20.
  • the lower surface S1 of the adapter 20 and the upper surface S2 of the bushing 24 are in contact with each other.
  • the bushing 24 supports the central conductor portion 22 so that the central conductor portion 22 extends in the vertical direction in the plunger 12. Therefore, the upper end of the barrel 220 of the central conductor portion 22 is inserted into the lower portion of the bushing 24. Since the bushing 24 is an insulating member, the plunger 12 and the central conductor portion 22 are insulated from each other. Further, the central conductor wire 204 of the coaxial cable 202 extends in the vertical direction in the bushing 24.
  • Such a bushing 24 is made of a resin material having a relative permittivity of about 2.1.
  • the bushing 26 is an insulating member (second insulating member) having a cylindrical shape having a central axis extending in the vertical direction.
  • the diameter of the upper part of the bushing 26 is larger than the diameter of the lower part of the bushing 26.
  • the bushing 26 is provided with a through hole H5 extending in the vertical direction.
  • the through hole H5 penetrates from the upper end to the lower end of the bushing 26.
  • the bushing 26 is provided in the plunger 12 at the lower end of the plunger 12.
  • the bushing 26 supports the central conductor portion 22 so that the central conductor portion 22 extends in the vertical direction in the plunger 12.
  • the lower end of the barrel 220 of the central conductor portion 22 and the lower portion of the measurement pin 224 are inserted into the bushing 26. Since the bushing 26 is an insulating member, the plunger 12 and the central conductor portion 22 are insulated from each other. Such a bushing 26 is made of a resin material having a relative permittivity of about 2.1.
  • the flange 16 is a member having a plate shape.
  • the flange 16 has a rectangular shape when viewed downward.
  • the flange 16 is provided near the upper end portion of the housing 14 in the vertical direction.
  • the flange 16 is provided with a through hole H6 extending in the vertical direction.
  • the housing 14 extends in the vertical direction in the through hole H6.
  • the diameter of the upper end portion of the housing 14 is larger than the diameter of the through hole H6 of the flange 16. Therefore, the housing 14 cannot pass through the through hole H6 downward.
  • Such a flange 16 is made of a highly conductive metal.
  • the flange 16 is made of, for example, SUS.
  • the slide member 17 is a member having an annular shape.
  • the housing 14 penetrates the slide member 17.
  • the slide member 17 is provided below the flange 16.
  • the slide member 17 can slide in the vertical direction with respect to the housing 14 together with the flange 16.
  • the spring 18 pushes the slide member 17 upward.
  • the spring 18 pushes the adapter 20 downward. More specifically, the upper end of the spring 18 is fixed to the lower surface of the slide member 17. The lower end of the spring 18 is fixed to the upper end of the adapter 20. When the adapter 20 is pushed upward, the spring 18 contracts and the adapter 20 is displaced upward with respect to the flange 16.
  • the lower surface S1 of the adapter 20 and the upper surface S2 of the bushing 24 will be described in more detail with reference to FIG.
  • the adapter 20 and the bushing 24 are in contact with each other. Further, the bushing 24 is provided below the adapter 20. Therefore, the lower surface S1 of the adapter 20 and the upper surface S2 of the bushing 24 are in contact with each other.
  • the lower surface S1 of the adapter 20 includes a concave surface 100 having an upwardly recessed shape.
  • the concave surface 100 has a circular shape when viewed upward.
  • the concave surface 100 is a portion of the lower surface S1 that is recessed above the portion that forms the lower end of the lower surface S1.
  • the portion forming the lower end of the lower surface S1 is a ring-shaped plane orthogonal to the vertical direction.
  • the maximum value r1 of the diameter of the concave surface 100 when viewed upward is smaller than the diameter R1 of the inner peripheral surface of the plunger 12.
  • the minimum value r2 of the diameter of the concave surface 100 when viewed upward is larger than the diameter R2 of the inner peripheral surface of the outer conductor 206.
  • the diameter of the concave surface 100 at the upper end of the concave surface 100 is smaller than the diameter of the concave surface 100 at the lower end of the concave surface 100.
  • the concave surface 100 has a first inclined surface that is inclined in the vertical direction so that the diameter of the concave surface 100 continuously decreases toward the upward direction. That is, the concave surface 100 has a truncated cone shape. Therefore, the diameter of the concave surface 100 at the upper end of the concave surface 100 is the minimum value r2 of the diameter of the concave surface 100 when viewed upward.
  • the diameter of the concave surface 100 at the lower end of the concave surface 100 is the maximum value r1 of the diameter of the concave surface 100 when viewed upward.
  • the upper surface S2 of the bushing 24 includes a convex surface 120 having a shape protruding upward.
  • the convex surface 120 has a circular shape when viewed downward.
  • the convex surface 120 fits into the concave surface 100. Therefore, the convex surface 120 is a portion in contact with the concave surface 100 in the upper surface S2 of the bushing 24.
  • the maximum value r3 of the diameter of the convex surface 120 when viewed downward is smaller than the diameter R1 of the inner peripheral surface of the plunger 12.
  • the minimum value r4 of the diameter of the convex surface 120 when viewed downward is larger than the diameter R2 of the inner peripheral surface of the outer conductor 206.
  • the diameter of the convex surface 120 at the upper end of the convex surface 120 is smaller than the diameter of the convex surface 120 at the lower end of the convex surface 120.
  • the convex surface 120 has a second inclined surface that is inclined in the vertical direction so that the diameter of the convex surface 120 continuously decreases toward the upward direction. That is, the convex surface 120 has a truncated cone shape. Therefore, the diameter of the convex surface 120 at the upper end of the convex surface 120 is the minimum value r4 of the diameter of the convex surface 120 when viewed downward.
  • the diameter of the convex surface 120 at the lower end of the convex surface 120 is the maximum value r3 of the diameter of the convex surface 120 when viewed downward.
  • the central conductor wire 204 is located inside the outer edge of the concave surface 100 when viewed upward. In the present embodiment, the central conductor wire 204 passes through the center of the concave surface 100 in the vertical direction when viewed upward. Similarly, the central conductor wire 204 is located within the outer edge of the convex surface 120 when viewed downward. The central conductor wire 204 passes through the center of the convex surface 120 in the vertical direction when viewed downward.
  • the insulator exposed portion P12 extends in the vertical direction between the upper end of the concave surface 100 and the lower end of the concave surface 100. Therefore, there is no conductor between the central conductor wire 204 and the concave surface 100 between the upper end of the concave surface 100 and the lower end of the concave surface 100.
  • the inspection connector 10 as described above is connected to the connector mounted on the electric circuit board.
  • the measurement pin 224 comes into contact with the signal terminal of the connector.
  • a high frequency signal is applied to the measurement pin 224. Therefore, a high frequency signal is applied to the central conductor wire 204 via the central conductor portion 22.
  • the plunger 12 comes into contact with the ground terminal of the connector. As a result, the ground potential is applied to the plunger 12. Therefore, a ground potential is applied to the outer conductor 206 via the adapter 20.
  • FIG. 5 is a schematic view of the cross-sectional view of FIG. Therefore, the dimensions of each part in FIG. 5 are different from the dimensions of each part in FIG. Further, for the preparation of understanding, the description of the bushing 24 is omitted in FIG.
  • the concave surface 100 is shown by a thick line.
  • the section above the upper end of the concave surface 100 of the adapter 20 is defined as the section A1.
  • the section below the upper end of the concave surface 100 of the adapter 20 and above the lower end of the concave surface 100 of the adapter 20 is defined as the section A2.
  • the section below the lower end of the concave surface 100 of the adapter 20 is defined as the section A3.
  • the part through which the high frequency signal is transmitted is called a transmission part.
  • the part maintained at the ground potential is called the ground part.
  • the transmission unit is the central conductor wire 204.
  • the ground portion is the outer conductor 206. Therefore, in the section A1, the distance between the transmission portion and the ground portion is the distance d1 between the outer peripheral surface of the central conductor wire 204 and the inner peripheral surface of the outer conductor 206.
  • the transmission section is barrel 220.
  • the ground part is a plunger 12. Therefore, in the section A3, the distance between the transmission portion and the ground portion is the distance d3 between the outer peripheral surface of the barrel 220 and the inner peripheral surface of the plunger 12. As is clear from FIG. 4, the distance d3 is larger than the distance d1.
  • the transmission unit is the central conductor wire 204.
  • the ground portion is an adapter 20. Therefore, in the section A2, the distance between the transmission portion and the ground portion is the distance d2 between the outer peripheral surface of the central conductor wire 204 and the concave surface 100 of the adapter 20.
  • the maximum value r1 of the diameter of the concave surface 100 when viewed upward is smaller than the diameter R1 of the inner peripheral surface of the plunger 12.
  • the minimum value r2 of the diameter of the concave surface 100 when viewed upward is larger than the diameter R2 of the inner peripheral surface of the outer conductor 206.
  • the central conductor wire 204 is located inside the outer edge of the concave surface 100 when viewed upward.
  • the sudden impedance change from the section A1 to the section A3 can be alleviated by the section A2. That is, it is suppressed that the distance between the transmission section and the ground section greatly fluctuates between the section A1 and the section A3. As a result, it is possible to suppress fluctuations in the characteristic impedance in the portion of the inspection connector 10 where the characteristic impedance is likely to change.
  • the center conductor wire 204 passes through the center of the concave surface 100 in the vertical direction when viewed upward. This makes it possible to accurately set the characteristic impedance of the inspection connector 10 in the section A2.
  • the concave surface 100 has a first inclined surface that is inclined in the vertical direction so that the diameter of the concave surface 100 continuously decreases toward the upward direction.
  • the distance between the transmission section and the ground section continuously increases in the section A2.
  • the section A2 it is suppressed that the distance between the transmission section and the ground section suddenly fluctuates.
  • the concave surface 100 has the first inclined surface
  • the bushing 24 is oriented in the direction perpendicular to the vertical direction due to the normal force received by the concave surface 100 from the adapter 20. Receives power from the adapter 20. As a result, the adapter 20 and the bushing 24 come into strong contact with each other. As a result, the positioning accuracy of the central conductor portion 22 can be improved.
  • the upper surface S2 of the bushing 24 includes a convex surface 120 having a shape protruding upward.
  • the convex surface 120 fits into the concave surface 100.
  • the bushing 24 is present in the region surrounded by the concave surface 100.
  • FIG. 6 is a cross-sectional view of the inspection connector 10a in the vicinity of the adapter 20.
  • the inspection connector 10a is different from the inspection connector 10 in the shapes of the concave surface 100 and the convex surface 120.
  • the concave surface 100 has a first staircase-shaped surface having a staircase shape so that the diameter of the concave surface 100 decreases discontinuously as it goes upward.
  • the convex surface 120 has a second stepped surface having a stepped shape so that the diameter of the convex surface 120 decreases discontinuously as it goes upward. Since the other configurations of the inspection connector 10a are the same as those of the inspection connector 10, the description thereof will be omitted.
  • the inspection connector 10a configured as described above, the fluctuation of the characteristic impedance in the portion of the inspection connector 10a where the characteristic impedance is likely to change can be suppressed for the same reason as the inspection connector 10. Further, according to the inspection connector 10a, it is possible to accurately set the characteristic impedance of the inspection connector 10a in the section A2 for the same reason as the inspection connector 10. Further, according to the inspection connector 10a, the bushing 24 is present in the region surrounded by the concave surface 100 for the same reason as the inspection connector 10.
  • FIG. 7 is a cross-sectional view of the inspection connector 10b in the vicinity of the adapter 20.
  • the inspection connector 10b is different from the inspection connector 10 in the shapes of the concave surface 100 and the convex surface 120. Specifically, the concave surface 100 has a constant diameter. That is, the concave surface 100 has a cylindrical shape. Similarly, the convex surface 120 has a constant diameter. That is, the convex surface 120 has a cylindrical shape. Since the other configurations of the inspection connector 10b are the same as those of the inspection connector 10, the description thereof will be omitted.
  • the inspection connector 10b configured as described above, the fluctuation of the characteristic impedance in the portion of the inspection connector 10b where the characteristic impedance is likely to change can be suppressed for the same reason as the inspection connector 10. Further, according to the inspection connector 10b, it is possible to accurately set the characteristic impedance of the inspection connector 10b in the section A2 for the same reason as the inspection connector 10. Further, according to the inspection connector 10b, the bushing 24 is present in the region surrounded by the concave surface 100 for the same reason as the inspection connector 10.
  • the lower end of the concave surface 100 is located near the central conductor wire 204. Therefore, in order to prevent a short circuit between the adapter 20 and the center conductor wire 204, it is desirable to secure a sufficient distance between the lower end of the concave surface 100 and the center conductor wire 204.
  • FIG. 8 is a cross-sectional view of the inspection connector 10c in the vicinity of the bushing 26.
  • the inspection connector 10c is different from the inspection connector 10 in the shape of the bushing 26. Specifically, the corner of the lower end of the upper part of the bushing 26 may be chamfered. The lower end corner of the lower portion of the bushing 26 may be chamfered.
  • the plunger 12 preferably has an inclined surface along the chamfered portion of the bushing 26. As a result, the inclined surface of the plunger 12 functions as a stopper for the chamfered portion of the bushing 26. Further, the inclined surface of the plunger 12 can suppress an increase in the distance between the plunger 12 and the measurement pin 224 due to the tapering of the measurement pin 224. Since the other configurations of the inspection connector 10c are the same as those of the inspection connector 10, the description thereof will be omitted.
  • FIG. 9 is a cross-sectional view of the inspection connector 10d in the vicinity of the adapter 20.
  • the inspection connector 10d is different from the inspection connector 10b in that the ring member 200 is further provided.
  • the inspection connector 10d will be described below, focusing on these differences.
  • the insulator exposed portion P12 does not exist. Therefore, the outer conductor exposed portion P13 is adjacent to the central conductor wire exposed portion P11 on the central conductor wire exposed portion P11.
  • the central conductor wire exposed portion P11 extends in the vertical direction in the section A2 located between the upper end of the concave surface 100 and the lower end of the concave surface 100. Therefore, in the section A2 located between the upper end of the concave surface 100 and the lower end of the concave surface 100 in the coaxial cable 202, the outer conductor 206 and the insulator 208 do not exist around the central conductor wire 204.
  • the lower ends of the outer conductor 206 and the insulator 208 coincide with the lower ends of the section A1 and the upper ends of the section A2. Then, the central conductor wire 204 projects downward from the lower end of the section A1 and the upper end of the section A2.
  • the ring member 200 is a conductive member having an annular shape.
  • the diameter of the outer peripheral surface of the ring member 200 is smaller than the diameter of the inner peripheral surface of the outer conductor 206.
  • the ring member 200 is provided around the central conductor wire 204 in a state of being electrically connected to the central conductor wire 204 in the section A2 located between the upper end of the concave surface 100 and the lower end of the concave surface 100 in the coaxial cable 202. Has been done.
  • the ring member 200 is fixed to the central conductor wire 204 by soldering. Therefore, the gap between the inner peripheral surface of the ring member 200 and the outer peripheral surface of the central conductor wire 204 is filled with solder. Since the other configurations of the inspection connector 10d are the same as those of the inspection connector 10b, the description thereof will be omitted.
  • the transmission unit is the central conductor line 204.
  • the ground portion is the outer conductor 206. Therefore, in the section A1, the distance between the transmission portion and the ground portion is the distance d1 between the outer peripheral surface of the central conductor wire 204 and the inner peripheral surface of the outer conductor 206.
  • the transmission section is barrel 220.
  • the ground part is a plunger 12. Therefore, in the section A3, the distance between the transmission portion and the ground portion is the distance d3 between the outer peripheral surface of the barrel 220 and the inner peripheral surface of the plunger 12. As is clear from FIG. 8, the distance d3 is larger than the distance d1.
  • the ring member 200 is electrically connected to the central conductor wire 204 in the section A2 located between the upper end of the concave surface 100 and the lower end of the concave surface 100 in the coaxial cable 202, and is around the central conductor wire 204. It is provided in. As a result, the distance between the transmission section and the ground section becomes smaller in the section A2. Therefore, it is suppressed that the distance between the transmission section and the ground section greatly fluctuates between the section A1 and the section A3. As a result, it is possible to suppress fluctuations in the characteristic impedance in the portion of the inspection connector 10d where the characteristic impedance is likely to change.
  • the gap between the inner peripheral surface of the ring member 200 and the outer peripheral surface of the central conductor wire 204 is filled with solder.
  • the high frequency signal is suppressed from wrapping around the inner peripheral surface of the ring member 200, and the high frequency signal is transmitted on the outer peripheral surface of the ring member 200.
  • the diameter of the outer peripheral surface of the ring member 200 is smaller than the diameter of the inner peripheral surface of the outer conductor 206. Therefore, the ring member 200 is prevented from coming into contact with the outer conductor 206.
  • the lower part of the adapter 20 is supported by the plunger 12. Therefore, the position accuracy of the adapter 20 with respect to the plunger 12 can be improved.
  • the configurations of the inspection connectors 10, 10a to 10d may be arbitrarily combined.
  • the center conductor wire 204 may pass in the vertical direction at a position other than the center of the concave surface 100 when viewed upward.
  • the diameter of the concave surface 100 at the upper end of the concave surface 100 may be equal to or larger than the diameter of the concave surface 100 at the lower end of the concave surface 100. Further, the diameter of the convex surface 120 at the upper end of the convex surface 120 may be equal to or larger than the diameter of the convex surface 120 at the lower end of the convex surface 120.
  • the concave surface 100 may have an inclined surface that is inclined in the vertical direction so that the diameter of the concave surface 100 continuously increases toward the upward direction.
  • the convex surface 120 may have an inclined surface that is inclined with respect to the vertical direction so that the diameter of the convex surface 120 continuously increases toward the upward direction.
  • the concave surface 100 may have a staircase-shaped surface having a staircase shape so that the diameter of the concave surface 100 increases discontinuously as it goes upward.
  • the upper surface S2 of the bushing 24 does not have to include the convex surface 120 having a shape protruding upward.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Paper (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

L'invention concerne un connecteur d'inspection dans lequel un adaptateur est fixé à l'extrémité inférieure d'un premier boîtier et à l'extrémité supérieure d'un second boîtier. L'adaptateur est un élément conducteur qui supporte un conducteur externe d'un câble coaxial. La surface inférieure de l'adaptateur comprend une surface en retrait formée de manière à être évidée vers le haut. La surface évidée a une forme circulaire lorsqu'elle est vue vers le haut. La valeur maximale du diamètre de la surface en retrait lorsqu'elle est vue vers le haut est inférieure au diamètre de la surface circonférentielle interne du second boîtier. La valeur minimale du diamètre de la surface en retrait lorsqu'elle est vue vers le haut est supérieure au diamètre de la surface circonférentielle interne du conducteur externe. Un fil conducteur central est positionné à l'intérieur du bord externe de la surface en retrait lorsqu'il est vu vers le haut.
PCT/JP2021/006731 2020-03-06 2021-02-24 Connecteur d'inspection WO2021177086A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202180016280.3A CN115152101A (zh) 2020-03-06 2021-02-24 检查用连接器
JP2022505133A JP7298770B2 (ja) 2020-03-06 2021-02-24 検査用コネクタ
TW110107995A TWI807268B (zh) 2020-03-06 2021-03-05 檢查用連接器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-039041 2020-03-06
JP2020039041 2020-03-06

Publications (1)

Publication Number Publication Date
WO2021177086A1 true WO2021177086A1 (fr) 2021-09-10

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PCT/JP2021/006731 WO2021177086A1 (fr) 2020-03-06 2021-02-24 Connecteur d'inspection

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Country Link
JP (1) JP7298770B2 (fr)
CN (1) CN115152101A (fr)
TW (1) TWI807268B (fr)
WO (1) WO2021177086A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002530841A (ja) * 1998-11-25 2002-09-17 リカ エレクトロニクス インターナショナル インコーポレイテッド 電気的接触装置
KR20050109246A (ko) * 2005-10-14 2005-11-17 리노공업주식회사 동축 접촉 프로브
US7189114B1 (en) * 2006-06-29 2007-03-13 Corning Gilbert Inc. Compression connector
JP2009052913A (ja) * 2007-08-23 2009-03-12 Yamaichi Electronics Co Ltd 同軸型コンタクト及び同軸多芯コネクタ
WO2010113536A1 (fr) * 2009-04-01 2010-10-07 株式会社村田製作所 Connecteur coaxial pour inspection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5126310B2 (ja) * 2010-07-22 2013-01-23 株式会社村田製作所 検査用同軸コネクタ及びレセプタクル
JP2014123482A (ja) * 2012-12-21 2014-07-03 Murata Mfg Co Ltd 検査用同軸コネクタ
TWI680616B (zh) * 2016-06-27 2019-12-21 日商村田製作所股份有限公司 檢查用同軸連接器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002530841A (ja) * 1998-11-25 2002-09-17 リカ エレクトロニクス インターナショナル インコーポレイテッド 電気的接触装置
KR20050109246A (ko) * 2005-10-14 2005-11-17 리노공업주식회사 동축 접촉 프로브
US7189114B1 (en) * 2006-06-29 2007-03-13 Corning Gilbert Inc. Compression connector
JP2009052913A (ja) * 2007-08-23 2009-03-12 Yamaichi Electronics Co Ltd 同軸型コンタクト及び同軸多芯コネクタ
WO2010113536A1 (fr) * 2009-04-01 2010-10-07 株式会社村田製作所 Connecteur coaxial pour inspection

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Publication number Publication date
CN115152101A (zh) 2022-10-04
TW202143586A (zh) 2021-11-16
TWI807268B (zh) 2023-07-01
JPWO2021177086A1 (fr) 2021-09-10
JP7298770B2 (ja) 2023-06-27

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