WO2021075455A1 - 検査用コネクタ及び検査用ユニット - Google Patents

検査用コネクタ及び検査用ユニット Download PDF

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Publication number
WO2021075455A1
WO2021075455A1 PCT/JP2020/038752 JP2020038752W WO2021075455A1 WO 2021075455 A1 WO2021075455 A1 WO 2021075455A1 JP 2020038752 W JP2020038752 W JP 2020038752W WO 2021075455 A1 WO2021075455 A1 WO 2021075455A1
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WO
WIPO (PCT)
Prior art keywords
conductor
outer conductor
barrel
inspection connector
plunger
Prior art date
Application number
PCT/JP2020/038752
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
真一 剱崎
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 CN202090000890.5U priority Critical patent/CN217507692U/zh
Priority to JP2021552408A priority patent/JP7334791B2/ja
Publication of WO2021075455A1 publication Critical patent/WO2021075455A1/ja

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    • 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
    • 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
    • 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
    • G01R1/073—Multiple probes
    • 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
    • H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall

Definitions

  • the present invention relates to an inspection connector and an inspection unit.
  • the probe described in Patent Document 1 As an invention relating to a conventional inspection connector and inspection unit, for example, the probe described in Patent Document 1 is known.
  • the probe described in Patent Document 1 is used for measuring a high frequency signal. Therefore, the probe described in Patent Document 1 includes a coaxial cable, a probe pin, and a plunger.
  • the coaxial cable includes an outer conductor and a central conductor.
  • the probe pin is electrically connected to the center conductor.
  • the plunger is electrically connected to the outer conductor.
  • the probe described in Patent Document 1 as described above is required to have a small probe loss and to be able to flexibly deform the coaxial cable.
  • the inspection connector in addition to the probe for measuring a high frequency signal, there is an inspection connector for measuring a DC signal (for example, a power supply) or a signal having a relatively low frequency. Even in such an inspection connector, it is required that the loss of the inspection unit including the inspection connector, the cable and the connector is small, and that the cable can be deformed flexibly.
  • a DC signal for example, a power supply
  • an object of the present invention is to provide an inspection connector and an inspection unit in which the loss of the inspection unit is small and the coaxial line portion can be flexibly deformed.
  • the cable may have a structure in which the central conductor is coated and may not include an outer conductor.
  • the cable is coated with a central conductor for transmitting a signal having a relatively low frequency. It may include a first cable having a structure and a second cable having a structure coated with a central conductor connected to the ground potential.
  • a cable having a structure in which the central conductor is coated is referred to as a coated electric wire.
  • the coaxial wire portion should be used for transmitting a DC signal or a signal having a relatively low frequency.
  • the coaxial wire portion comprises a central conductor, an outer conductor and an insulator.
  • the outer conductor has a relatively large area. Therefore, if an outer conductor that would normally be connected to the ground potential is used for transmission of a DC signal or a signal having a relatively low frequency, the loss of the inspection unit can be reduced.
  • the coaxial wire portion includes an insulator that insulates the central conductor and the outer conductor. This insulator is an elastic body.
  • the insulator helps the coaxial wire portion to be deformed flexibly.
  • the inventor of the present application uses the outer conductor of the coaxial line portion for transmitting a DC signal or a signal having a relatively low frequency in an inspection connector for measuring a DC signal or a signal having a relatively low frequency. By doing so, I came up with the idea that the loss of the inspection unit could be reduced and the coaxial line could be supple.
  • the inspection connector according to the present invention is An inspection connector connected to an end of a coaxial wire portion including a center conductor, an outer conductor surrounding the center conductor, and a first insulator that insulates the center conductor and the outer conductor.
  • a plunger that holds the coaxial wire portion in a state of being insulated from the outer conductor and is provided with a through hole extending along the extending direction of the coaxial wire portion.
  • a measuring pin supported by the plunger in a state of being insulated from the plunger, and a measuring pin through which the through hole is inserted. Is equipped with The measuring pin is the outer conductor of the coaxial line portion including the central conductor, the outer conductor surrounding the center conductor, and the first insulator that insulates the center conductor and the outer conductor. Is electrically connected to.
  • the inspection unit according to the present invention is A coaxial wire portion including a central conductor, an outer conductor surrounding the central conductor, and a first insulator that insulates the central conductor and the outer conductor. With the inspection connector connected to the end of the coaxial wire portion, To be equipped.
  • the loss of the inspection unit can be reduced and the cable can be flexibly deformed.
  • FIG. 1 is an external perspective view of the inspection unit 10.
  • FIG. 2 is a cross-sectional view of the inspection connector 100.
  • FIG. 3 is a cross-sectional view of the lower part of the inspection connector 100.
  • FIG. 4 is a cross-sectional view of the inspection connector 100 and the connector 300.
  • FIG. 5 is a cross-sectional view of the lower part of the inspection connector 100a of the inspection unit 10a.
  • FIG. 6 is a cross-sectional view of the lower part of the inspection connector 100b according to the modified example.
  • FIG. 1 is an external perspective view of the inspection unit 10.
  • FIG. 2 is a cross-sectional view of the inspection connector 100.
  • FIG. 3 is a cross-sectional view of the lower part of the inspection connector 100.
  • the vertical direction, the horizontal direction, and the front-back 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 unit 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 unit.
  • 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 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.
  • 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 held 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 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 is arranged between the first member and the second member.
  • the inspection unit 10 is used for measuring a DC signal transmitted in an electronic device or a signal having a relatively low frequency. In this embodiment, the inspection unit 10 is used for measuring a signal having a relatively low frequency.
  • the inspection unit 10 includes an inspection connector 100, external connection connectors 200a and 200b, and coaxial cables 202a and 202b (coaxial line portions).
  • the external connection connectors 200a and 200b are connected to a measuring device (not shown). Since the structures of the external connection connectors 200a and 200b are general structures, the description thereof will be omitted.
  • the coaxial cable 202a electrically connects the inspection connector 100 and the external connection connector 200a.
  • the coaxial cable 202b electrically connects the inspection connector 100 and the external connection connector 200b.
  • the coaxial cables 202a and 202b have the same structure. The structure of the coaxial cable 202a will be described as an example.
  • the coaxial cable 202a includes a central conductor 204a, an outer conductor 206a, an insulator 208a (first insulator), and a coating film 210a (second insulator).
  • the center conductor 204a is the core wire of the coaxial cable 202a. Therefore, the center conductor 204a is located at the center of the coaxial cable 202a.
  • the center conductor 204a is made of a low resistance conductor.
  • the center conductor 204a is made of, for example, copper.
  • the outer conductor 206a surrounds the center conductor 204a. Therefore, the outer conductor 206a has a ring shape in a cross section orthogonal to the direction in which the coaxial cable 202a extends. Such an outer conductor 206a is manufactured, for example, by knitting thin same lines.
  • the outer conductor 206a is made of a low resistance conductor.
  • the outer conductor 206a is made of, for example, copper.
  • the insulator 208a insulates the central conductor 204a and the outer conductor 206a.
  • the insulator 208a is located between the central conductor 204a and the outer conductor 206a.
  • the insulator 208a surrounds the center conductor 204a.
  • the insulator 208a is surrounded by an outer conductor 206a.
  • the insulator 208a has a ring shape in a cross section orthogonal to the direction in which the coaxial cable 202a extends.
  • the insulator 208a is made of an insulating resin.
  • the insulator 208a is made of, for example, polyethylene. Further, the insulator 208a is provided with a plurality of holes so that the coaxial cable 202a can be flexibly deformed.
  • the coating film 210a surrounds the outer conductor 206a. Therefore, the coating film 210a has an annular shape in a cross section orthogonal to the direction in which the coaxial cable 202a extends.
  • the coating film 210a is made of an insulating resin.
  • the coating film 210a is made of, for example, polyethylene.
  • the coating film 210a is not provided with a plurality of holes, or is provided with holes smaller than those of the insulator 208. Therefore, the coating film 210a is less likely to be deformed than the insulator 208a. Therefore, the Young's modulus of the coating film 210a is larger than the Young's modulus of the insulator 208a. Further, the thickness of the coating film 210a is smaller than the thickness of the insulator 208a.
  • the outer conductor 206a, the insulator 208a and the coating 210a are removed, so that the central conductor 204a is exposed in the barrel 122a described later.
  • the portion where the central conductor 204a is exposed is referred to as a central conductor exposed portion 205a.
  • the outer conductor 206a is exposed by removing the coating film 210a.
  • the portion where the outer conductor 206a is exposed is referred to as an outer conductor exposed portion 207a.
  • the inspection connector 100 is connected to the ends of the coaxial cables 202a and 202b. In the present embodiment, the inspection connector 100 is connected to the lower ends of the coaxial cables 202a and 202b.
  • the inspection connector 100 includes a plunger 102, a housing 104, a flange 106, a spring 108, a spacer 110, measuring pins 120a and 120b, barrels 122a and 122b, and bushings 124a, 124b, 126a and 126b (first insulating member). ..
  • the plunger 102 is a tubular member extending in the vertical direction.
  • the plunger 102 is provided with a through hole H1 extending in the vertical direction.
  • the through hole H1 extends along the extending direction of the coaxial cable 202a.
  • the through hole H1 penetrates from the upper end to the lower end of the plunger 102.
  • the plunger 102 holds the coaxial cables 202a and 202b in a state of being insulated from the outer conductors 206a and 206b.
  • the mode in which the plunger 102 holds the outer conductors 206a and 206b will be described later.
  • Such a plunger 102 is made of a highly conductive metal.
  • the plunger 102 is made of, for example, SUS.
  • the housing 104 is a tubular member extending in the vertical direction.
  • the housing 104 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 104.
  • the lower end of the housing 104 is inserted into the upper part of the plunger 102.
  • Such a housing 104 is made of a highly conductive metal.
  • the housing 104 is made of, for example, SUS.
  • the spacer 110 is arranged between the plunger 102 and the housing 104 in the vertical direction.
  • the spacer 110 has a disk shape. When viewed downward, two holes are provided near the center of the spacer 110. The coaxial cables 202a and 202b pass through these two holes in the vertical direction. As a result, the spacer 110 positions the coaxial cables 202a and 202b in the front-rear direction and the left-right direction.
  • Such a spacer 110 is made of a highly conductive metal.
  • the spacer 110 is made of, for example, SUS.
  • the flange 106 is a member having a plate shape.
  • the flange 106 has a rectangular shape when viewed downward.
  • the flange 106 is arranged near the upper end of the housing 104 in the vertical direction.
  • the flange 106 is provided with a through hole H3 extending in the vertical direction.
  • the housing 104 extends in the vertical direction in the through hole H3.
  • the diameter of the upper end portion of the housing 104 is larger than the diameter of the through hole H3 of the flange 106. Therefore, the housing 104 cannot pass through the through hole H3 downward.
  • Such a flange 106 is made of a highly conductive metal.
  • the flange 106 is made of, for example, SUS.
  • the spring 108 pushes the flange 106 upward.
  • the spring 108 pushes the plunger 102 downward. More specifically, the upper end of the spring 108 is fixed to the lower surface of the flange 106. The lower end of the spring 108 is fixed to the upper end of the plunger 102.
  • the plunger 102 and the housing 104 are integrated. Therefore, when the plunger 102 is pushed upward, the spring 108 contracts, and the plunger 102 and the housing 104 are displaced upward with respect to the flange 106.
  • the measurement pin 120a is a terminal to which a signal having a relatively low frequency is applied.
  • the measuring pin 120a is electrically connected to the outer conductor 206a of the coaxial cable 202a including the central conductor 204a, the outer conductor 206a surrounding the center conductor 204a, and the insulator 208a that insulates the center conductor 204a and the outer conductor 206a. It is connected to the.
  • the measurement pin 120a is electrically connected to the outer conductor 206a and the center conductor 204a of the coaxial cable 202a.
  • the measuring pin 120a is a rod-shaped member extending in the vertical direction. At least a part of the measuring pin 120a extends in the vertical direction in the through hole H1.
  • the measuring pin 120a has a through hole H1 inserted through it. In the present embodiment, the lower end of the measurement pin 120a projects downward from the through hole H1.
  • the measuring pin 120a includes a tubular portion 1202a, a lower pin 1204a, an upper pin 1206a, and a spring 1208a.
  • the tubular portion 1202a has a cylindrical shape having a central axis extending in the vertical direction. However, the diameters of the upper end portion and the lower end portion of the tubular portion 1202a are smaller than the diameter of the residual portion of the tubular portion 1202a. That is, the tubular portion 1202a has a shape in which the upper end portion and the lower end portion of the tubular portion 1202a are slightly narrowed.
  • the lower pin 1204a is a rod-shaped member extending in the vertical direction.
  • the upper portion of the lower pin 1204a is located in the tubular portion 1202a.
  • the lower portion of the lower pin 1204a is located outside the tubular portion 1202a.
  • the diameter of the upper part of the lower pin 1204a is larger than the diameter of the remaining portion of the lower pin 1204a. As a result, the lower pin 1204a cannot pass through the tubular portion 1202a in the downward direction.
  • the upper pin 1206a is a rod-shaped member extending in the vertical direction.
  • the lower portion of the upper pin 1206a is located in the tubular portion 1202a.
  • the upper portion of the upper pin 1206a is located outside the tubular portion 1202a.
  • the diameter of the lower portion of the upper pin 1206a is larger than the diameter of the remaining portion of the upper pin 1206a. As a result, the upper pin 1206a cannot pass through the tubular portion 1202a in the upward direction.
  • the spring 1208a is arranged in the tubular portion 1202a.
  • the lower end of the spring 1208a is in contact with the upper end of the lower pin 1204a.
  • the upper end of the spring 1208a is in contact with the lower end of the upper pin 1206a.
  • the spring 1208a pushes the lower pin 1204a downward and the upper pin 1206a upward.
  • the measuring pin 120a having the above structure can be expanded and contracted in the vertical direction.
  • the measurement pin 120a as described above is made of brass, for example.
  • the measuring pin 120a is supported by the plunger 102 in a state of being insulated from the plunger 102, as will be described later.
  • the barrel 122a holds the measurement pin 120a and the outer conductor 206a. More specifically, the barrel 122a is fixed to the lower end of the coaxial cable 202a.
  • the barrel 122a has a cylindrical shape having a central axis extending in the vertical direction. However, a hole H10 extending in the vertical direction is provided in the lower portion of the barrel 122a. A part of the measuring pin 120a is arranged in the hole H10.
  • the measuring pin 120a is fixed to the barrel 122a by soldering. As a result, the measurement pin 120a and the barrel 122a are electrically connected. The lower end of the measuring pin 120a projects downward from the hole H10.
  • a hole H11 extending in the vertical direction is provided in the upper part of the barrel 122a.
  • the central conductor exposed portion 205a and the outer conductor exposed portion 207a are arranged in the hole H11.
  • the central conductor exposed portion 205a and the outer conductor exposed portion 207a are fixed to the barrel 122a by solder.
  • the central conductor 204a and the barrel 122a are electrically connected.
  • the outer conductor 206a and the barrel 122a are electrically connected.
  • the measurement pin 120a is electrically connected to the outer conductor 206a and the center conductor 204a via the barrel 122a.
  • the barrel 122a having the above structure is made of brass, for example.
  • the bushing 124a is an insulating member that is held by the plunger 102 and holds the barrel 122a.
  • the bushing 124a has a cylindrical shape having a central axis extending in the vertical direction.
  • the bushing 124a is provided with a through hole H21 extending in the vertical direction.
  • the lower portion of the barrel 122a is arranged in the through hole H21.
  • the bushing 124a is arranged in the through hole H1.
  • the bushing 124a prevents the plunger 102 and the barrel 122a from coming into contact with each other. That is, the bushing 124a insulates the plunger 102 and the barrel 122a.
  • the bushing 124a insulates the measuring pin 120a from the plunger 102.
  • the bushing 124a is made of an insulating resin.
  • the bushing 124a is made of, for example, an epoxy resin.
  • the bushing 126a is an insulating member that is held by the plunger 102 and holds the barrel 122a.
  • the bushing 126a has a cylindrical shape having a central axis extending in the vertical direction.
  • the bushing 126a is provided with a through hole H22 extending in the vertical direction.
  • the upper portion of the barrel 122a is arranged in the through hole H22.
  • the bushing 124a is arranged in the through hole H1.
  • the bushing 126a prevents the plunger 102 and the barrel 122a from coming into contact with each other. That is, the bushing 126a insulates the plunger 102 and the barrel 122a.
  • the bushing 126a insulates the measuring pin 120a from the plunger 102.
  • the bushing 126a is made of an insulating resin.
  • the bushing 126a is made of, for example, an epoxy resin.
  • the measurement pins 120b, barrel 122b, and bushings 124b, 126b are arranged to the right of the measurement pins 120a, barrel 122a, and bushings 124a, 126a.
  • the measurement pin 120b is a terminal connected to the ground potential.
  • the structures of the measuring pins 120b, the barrel 122b, and the bushings 124b, 126b are the same as the structures of the measuring pins 120a, the barrel 122a, and the bushings 124a, 126a, the description thereof will be omitted.
  • FIG. 4 is a cross-sectional view of the inspection connector 100 and the connector 300.
  • the connector 300 is mounted on the circuit board of an electronic device.
  • the connector 300 includes a plurality of terminals 302a to 302d.
  • a signal having a relatively low frequency is output from the terminal 302a.
  • the terminal 302c is connected to the ground potential.
  • the inspection connector 100 is set on the connector 300. Then, the inspection connector 100 is lowered. As a result, the measurement pin 120a comes into contact with the terminal 302a. That is, a signal having a relatively low frequency is applied to the measurement pin 120a. At this time, the measurement pin 120a is pushed upward by the terminal 302a. Therefore, the measurement pin 120a is displaced upward with respect to the plunger 102.
  • the measurement pin 120b comes into contact with the terminal 302c. That is, the measurement pin 120b is connected to the ground potential. At this time, the measurement pin 120b is pushed upward by the terminal 302c. Therefore, the measurement pin 120b is displaced upward with respect to the plunger 102.
  • the measuring device connected to the inspection connector 100 can measure a signal having a relatively low frequency.
  • the coaxial cable 202a includes a central conductor 204a, an outer conductor 206a, and an insulator 208a.
  • the outer conductor 206a has a relatively large area. Therefore, in the inspection connector 100, the outer conductor 206a is used for transmitting a DC signal or a signal having a relatively low frequency in order to reduce the loss of the inspection unit 10.
  • the coaxial cable 202a includes an insulator 208a that insulates the central conductor 204a and the outer conductor 206a.
  • the insulator 208a is an elastic body. Therefore, the insulator 208a helps the coaxial cable 202a to be flexibly deformed. As described above, in the inspection connector 100 for measuring a DC signal or a signal having a relatively low frequency, if the outer conductor 206a of the coaxial cable 202a is used for transmitting a DC signal or a signal having a relatively low frequency, It is possible to achieve both reduction of loss of the inspection unit 10 and flexibility of the coaxial cable 202a.
  • the loss of the inspection unit 10 can be further reduced. More specifically, the measuring pin 120a is electrically connected to the outer conductor 206a and the center conductor 204a. As a result, in addition to the outer conductor 206a, the central conductor 204a is used for transmitting a DC signal or a signal having a relatively low frequency. As a result, according to the inspection unit 10 and the inspection connector 100, the loss of the inspection unit 10 can be further reduced.
  • the loss of the inspection unit 10 can be further reduced. More specifically, the measuring pin 120a is electrically connected to the outer conductor 206a via the barrel 122a. As described above, when the barrel 122a is used, it is easy to increase the contact area between the measuring pin 120a and the barrel 122a. Further, it is easy to increase the contact area between the outer conductor 206a and the barrel 122a. As a result, the resistance value between the measuring pin 120a and the outer conductor 206a is reduced. Therefore, according to the inspection unit 10 and the inspection connector 100, the loss of the inspection unit 10 can be further reduced.
  • the coaxial cable 202a includes a central conductor.
  • a coaxial cable 202a having a central conductor 204a has a more stable surface shape of the outer conductor 206a than a cable having an outer conductor and no central conductor. As a result, it is possible to suppress unnecessary changes in the capacitive coupling that occurs between the outer conductor 206a and the other conductor member. As a result, stable measurement can be realized by the inspection unit 10 and the inspection connector 100.
  • the plunger 102 when the plunger 102 is pushed upward, the spring 108 contracts, and the plunger 102 and the housing 104 are displaced upward with respect to the flange 106.
  • the vertical position of the measurement pin 120a can be adjusted while the plunger 102 is connected to the connector 300.
  • the measurement pin 120a and the terminal 302a of the connector 300 can be brought into contact with each other more reliably.
  • FIG. 5 is a cross-sectional view of the lower part of the inspection connector 100a of the inspection unit 10a.
  • the plunger 102 and the measurement pin 120a were insulated by insulating the plunger 102 and the barrel 122a.
  • the plunger 102 and the measurement pin 120a are insulated by insulating the measurement pin 120a and the barrel 122a.
  • the structure of the inspection connector 100a will be described below, focusing on this difference.
  • the inspection connector 100a includes a plunger 102, a housing 104, a flange 106 (not shown in FIG. 5), a spring 108 (not shown in FIG. 5), a measuring pin 120a, a barrel 122a, a bushing 128a (second insulating member), and a bushing 128a. It is provided with a bushing 130a (third insulating member).
  • the plunger 102, housing 104, flange 106, spring 108 and measurement pin 120a of the inspection connector 100a are the same as the plunger 102, housing 104, flange 106, spring 108 and measurement pin 120a of the inspection connector 100, respectively. Omit.
  • the barrel 122a is held by the plunger 102. More specifically, the barrel 122a is arranged in the through hole H1. Further, the barrel 122a is in contact with the plunger 102.
  • the barrel 122a has a cylindrical shape having a central axis extending in the vertical direction.
  • the barrel 122a is provided with a through hole H30 extending in the vertical direction. The through hole H30 penetrates from the upper end to the lower end of the barrel 122a.
  • the measurement pin 120a is arranged in the through hole H30 of the barrel 122a. However, the measurement pin 120a and the barrel 122a are insulated from each other. Specifically, the bushing 128a is held by the barrel 122a and holds the measuring pin 120a.
  • the bushing 130a is held by the barrel 122a and also holds the outer conductor 206a.
  • the outer conductor 206a and the barrel 122a are insulated from each other.
  • the upper end of the measurement pin 120a is in contact with the lower end of the center conductor 204a. Further, the central conductor 204a and the outer conductor 206a are electrically connected by a connecting member 212a. Therefore, the measurement pin 120a is electrically connected to the central conductor 204a and the outer conductor 206a of the coaxial cable 202a.
  • the inspection connector 100a for the same reason as the inspection connector 100, the loss of the inspection unit 10 is small, and the coaxial cable 202a can be flexibly deformed.
  • FIG. 6 is a cross-sectional view of the lower part of the inspection connector 100b according to the modified example. As shown in FIG. 6, the measuring pin 120a does not have to be electrically connected to the center conductor 204a as long as it is electrically connected to the outer conductor 206a.
  • the configurations of the inspection connectors 100, 100a, and 100b may be arbitrarily combined.
  • a high frequency signal having a relatively low frequency (a high frequency signal having a frequency of 15 MHz or less) is applied to the measurement pins 120a of the inspection connectors 100, 100a, 100b.
  • a DC signal may be applied to the measurement pins 120a of the inspection connectors 100, 100a, 100b.
  • the measurement pin 120a is connected to the terminal 302a of the connector 300 in a state of protruding downward.
  • the measuring pin 120a may project downward after the plunger 102 is connected to the connector 300.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Leads Or Probes (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
PCT/JP2020/038752 2019-10-18 2020-10-14 検査用コネクタ及び検査用ユニット WO2021075455A1 (ja)

Priority Applications (2)

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CN202090000890.5U CN217507692U (zh) 2019-10-18 2020-10-14 检查用连接器以及检查用单元
JP2021552408A JP7334791B2 (ja) 2019-10-18 2020-10-14 検査用コネクタ及び検査用ユニット

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WO2023084888A1 (ja) * 2021-11-12 2023-05-19 株式会社村田製作所 測定用プローブ

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118501512A (zh) * 2024-05-17 2024-08-16 昆山雷匠通信科技有限公司 测试连接器

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JPS6082271U (ja) * 1983-11-09 1985-06-07 株式会社アドバンテスト 同軸プロ−ブコンタクト
JPS60207343A (ja) * 1984-03-31 1985-10-18 Yokowo Mfg Co Ltd 回路基板等の検査装置
JP2002501289A (ja) * 1998-01-05 2002-01-15 ライカ 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 同軸接点組立体装置
WO2002063314A1 (fr) * 2001-02-02 2002-08-15 Tokyo Electron Limited Sonde
JP2008166121A (ja) * 2006-12-28 2008-07-17 Toyo Denshi Giken Kk 同軸プローブと、プローブ収納ボードと、ケーブル保持ボードと、コンタクト機と、ケーブル保持ボードの製造方法
JP2012038499A (ja) * 2010-08-05 2012-02-23 Jsr Corp 電線被覆層形成用放射線硬化性樹脂組成物
JP2012099246A (ja) * 2010-10-29 2012-05-24 Murata Mfg Co Ltd 検査用同軸コネクタ及びプローブ
JP2012181119A (ja) * 2011-03-02 2012-09-20 Ibiden Co Ltd 基板の検査装置及びその検査装置の製造方法
JP2015102435A (ja) * 2013-11-26 2015-06-04 株式会社村田製作所 検査装置

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JPS6082271U (ja) * 1983-11-09 1985-06-07 株式会社アドバンテスト 同軸プロ−ブコンタクト
JPS60207343A (ja) * 1984-03-31 1985-10-18 Yokowo Mfg Co Ltd 回路基板等の検査装置
JP2002501289A (ja) * 1998-01-05 2002-01-15 ライカ 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 同軸接点組立体装置
WO2002063314A1 (fr) * 2001-02-02 2002-08-15 Tokyo Electron Limited Sonde
JP2008166121A (ja) * 2006-12-28 2008-07-17 Toyo Denshi Giken Kk 同軸プローブと、プローブ収納ボードと、ケーブル保持ボードと、コンタクト機と、ケーブル保持ボードの製造方法
JP2012038499A (ja) * 2010-08-05 2012-02-23 Jsr Corp 電線被覆層形成用放射線硬化性樹脂組成物
JP2012099246A (ja) * 2010-10-29 2012-05-24 Murata Mfg Co Ltd 検査用同軸コネクタ及びプローブ
JP2012181119A (ja) * 2011-03-02 2012-09-20 Ibiden Co Ltd 基板の検査装置及びその検査装置の製造方法
JP2015102435A (ja) * 2013-11-26 2015-06-04 株式会社村田製作所 検査装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023084888A1 (ja) * 2021-11-12 2023-05-19 株式会社村田製作所 測定用プローブ
JPWO2023084888A1 (enrdf_load_stackoverflow) * 2021-11-12 2023-05-19
JP7563627B2 (ja) 2021-11-12 2024-10-08 株式会社村田製作所 測定用プローブ

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