WO2021215334A1 - 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
WO2021215334A1
WO2021215334A1 PCT/JP2021/015483 JP2021015483W WO2021215334A1 WO 2021215334 A1 WO2021215334 A1 WO 2021215334A1 JP 2021015483 W JP2021015483 W JP 2021015483W WO 2021215334 A1 WO2021215334 A1 WO 2021215334A1
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WO
WIPO (PCT)
Prior art keywords
pin
ground
signal pin
signal
barrel
Prior art date
Application number
PCT/JP2021/015483
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English (en)
French (fr)
Japanese (ja)
Inventor
知明 小出
田中　達也
亨 山口
寿 山河
阿部　学
康祐 中谷
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 CN202190000326.8U priority Critical patent/CN218938344U/zh
Priority to JP2022517001A priority patent/JP7327659B2/ja
Priority to TW110114119A priority patent/TWI778588B/zh
Publication of WO2021215334A1 publication Critical patent/WO2021215334A1/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

Definitions

  • the present invention relates to an inspection connector and an inspection unit used for measuring a high frequency signal.
  • the probe described in Patent Document 1 can simultaneously measure signals of a plurality of terminals to be measured.
  • the probe described in Patent Document 1 includes a plurality of central conductors. Each of the plurality of center conductors contacts the terminal to be measured.
  • the plurality of terminals to be measured are signal terminals.
  • the plurality of terminals to be measured are signal terminals.
  • a plurality of terminals to be measured may include a signal terminal and a ground terminal. Even in such a case, it is required that the probe can accurately measure the signal.
  • an object of the present invention is to provide an inspection connector and an inspection unit capable of accurately measuring a high frequency signal even when a plurality of terminals to be measured include a signal terminal and a ground terminal.
  • the inspection connector is The end of a first coaxial cable comprising a first center conductor, a first outer conductor surrounding the first center conductor, and a first insulator that insulates the first center conductor and the first outer conductor.
  • a second including a part, a second center conductor, a second outer conductor surrounding the second center conductor, and a second insulator that insulates the second center conductor and the second outer conductor.
  • An inspection connector connected to the end of a coaxial cable.
  • a first barrel that is electrically connected to the first outer conductor and surrounds the first central conductor when viewed downward.
  • a second barrel that is electrically connected to the second outer conductor and surrounds the second central conductor when viewed downward, and is arranged to the right of the first barrel.
  • 2 barrels and A cable adapter that supports the first barrel and the second barrel while being electrically connected to the first barrel and the second barrel.
  • a first signal pin that is electrically connected to the first center conductor and is located below the first center conductor and extends in the vertical direction.
  • a second signal pin that is electrically connected to the second center conductor and is located below the second center conductor and extends in the vertical direction.
  • a first ground pin that is electrically connected to the cable adapter and extends in the vertical direction to the right of the first signal pin and to the left of the second signal pin. It has.
  • the shafts and members extending in the front-rear direction do not necessarily indicate only the shafts and members 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 to the third member is a configuration of an inspection unit.
  • 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 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 held by 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 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.
  • a high frequency signal can be accurately measured even when a plurality of terminals to be measured include a signal terminal and a ground terminal.
  • FIG. 1 is a cross-sectional view of the inspection unit 10.
  • FIG. 2 is a cross-sectional view of the inspection connector 100.
  • FIG. 3 is an exploded perspective view of the inspection connector 100.
  • FIG. 4 is an enlarged cross-sectional view of the inspection connector 100.
  • FIG. 5 is an external perspective view of the bushings 124 and 126 and the ground pin support member 132.
  • FIG. 6 is a bottom view of the ground pin support member 132.
  • FIG. 7 is a bottom view of the cable adapter 105.
  • FIG. 8 is a cross-sectional view of the inspection connector 100a.
  • FIG. 9 is an enlarged cross-sectional view of the inspection connector 100a.
  • FIG. 1 is a cross-sectional view of the inspection unit 10.
  • FIG. 1 shows the structure of the inspection unit 10 in a cross section orthogonal to the front-rear direction.
  • FIG. 2 is a cross-sectional view of the inspection connector 100.
  • FIG. 3 is an exploded perspective view of the inspection connector 100.
  • FIG. 4 is an enlarged cross-sectional view of the inspection connector 100.
  • FIG. 5 is an external perspective view of the bushings 124 and 126 and the ground pin support member 132.
  • FIG. 6 is a bottom view of the ground pin support member 132. In FIG. 6, parts other than the ground pin support member 132 are not shown.
  • FIG. 7 is a bottom view of the cable adapter 105.
  • 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 4.
  • the vertical direction may be opposite to the vertical direction of FIGS. 1 to 4.
  • the left-right direction may be opposite to the left-right direction of FIGS. 1 to 4.
  • the front-rear direction may be opposite to the front-rear direction of FIGS. 1 to 4.
  • the inspection unit 10 is used for measuring a high frequency signal transmitted in an electronic device. As shown in FIG. 1, the inspection unit 10 includes an inspection connector 100, an external connection connector 200a to 200h, and a coaxial cable 202a to 202h. The external connection connectors 200a to 200h are connected to a measuring device (not shown). Since the structure of the external connection connectors 200a to 200h is a general structure, the description thereof will be omitted.
  • the coaxial cable 202a (first coaxial cable) electrically connects the inspection connector 100 and the external connection connector 200a.
  • the coaxial cable 202b (second coaxial cable) electrically connects the inspection connector 100 and the external connection connector 200b.
  • the coaxial cable 202c (third coaxial cable) electrically connects the inspection connector 100 and the external connection connector 200c.
  • the coaxial cables 202d to 202h electrically connect the inspection connector 100 and the external connection connector 200d to 200h, respectively.
  • the coaxial cables 202a to 202d are arranged in a row from left to right in this order.
  • the coaxial cables 202e to 202h are arranged in a row from left to right in this order.
  • the coaxial cables 202e to 202h are arranged in front of the coaxial cables 202a to 202d.
  • the coaxial cables 202a to 202h have the same structure. The structure of the coaxial cable 202a will be described as an example.
  • the coaxial cable 202a includes a center conductor 204a (first center conductor), an outer conductor 206a (first outer conductor), an insulator 208a (first insulator), and a coating film 210a.
  • 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 a thin conducting wire.
  • 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 208a. 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.
  • the central conductor 204a is exposed from the coaxial cable 202a by removing the outer conductor 206a, the insulator 208a, and the coating film 210a. Further, the outer conductor 206a is exposed from the coaxial cable 202a by removing the coating film 210a above the exposed portion of the central conductor 204a.
  • the coaxial cable 202b includes a center conductor 204b (second center conductor), an outer conductor 206b (second outer conductor), an insulator 208b (second insulator), and a coating film 210b. There is.
  • the coaxial cable 202c includes a central conductor 204c (third central conductor), an outer conductor 206c (third outer conductor), an insulator 208c (third insulator), and a coating film 210c.
  • the inspection connector 100 is connected to the ends of the coaxial cables 202a to 202h. In the present embodiment, the inspection connector 100 is connected to the lower ends of the coaxial cables 202a to 202h. As shown in FIGS. 2 and 3, the inspection connector 100 includes a plunger 102, a ring 103, a housing 104, a cable adapter 105, a flange 106, a spring 108, a spacer 109, signal pins 120a to 120h, and barrels 122a to 122h (FIG. 2). 4), sockets 123a to 123h (see FIG. 4), bushings 124, 126, 130a to 130h (see FIG.
  • ground pin support members 132 ground pin support members 132
  • ground pins 220a to 220h see FIG. 4
  • the signal pins 120e to 120h, the barrels 122e to 122h, the sockets 123e to 123h, the bushings 130e to 130h, and the ground pins 220e to 220h are not shown.
  • Sockets 123a to 123h are electrically connected to the central conductors 204a to 204h, respectively. However, the sockets 123a to 123h are not electrically connected to the outer conductors 206a to 206h, respectively.
  • Sockets 123a to 123d are lined up in this order from left to right. As a result, the socket 123d is located to the right of the socket 123c. The socket 123c is located to the right of the socket 123b. The socket 123b is located to the right of the socket 123a. The sockets 123e to 123h are arranged in a row from left to right in this order. Sockets 123e to 123h are arranged in front of sockets 123a to 123d. Since the sockets 123a to 123h have the same structure, the socket 123a will be described below. The description of the sockets 123b to 123h will be omitted.
  • the socket 123a is attached to the lower end of the coaxial cable 202a.
  • the socket 123a is electrically connected to the center conductor 204a.
  • the socket 123a is not electrically connected to the outer conductor 206a.
  • the socket 123a has a cylindrical shape with a central axis extending in the vertical direction.
  • the upper end of the socket 123a is open.
  • the lower end of the socket 123a is not open.
  • the lower end of the socket 123a may be open.
  • the central conductor 204a is exposed at the lower end of the coaxial cable 202a.
  • the center conductor 204a is inserted into the socket 123a through an opening at the upper end of the socket 123a.
  • the center conductor 204a is fixed to the socket 123a by soldering. As a result, the central conductor 204a is electrically connected to the socket 123a. However, the socket 123a is not in contact with the outer conductor 206a. As a result, the socket 123a is not electrically connected to the outer conductor 206a.
  • the socket 123a having the above structure is made of brass, for example.
  • the barrels 122a to 122h (the barrel 122a is the first barrel, the barrel 122b is the second barrel, and the barrel 122c is the third barrel) are electrically connected to the outer conductors 206a to 206h, respectively. However, the barrels 122a to 122h are not electrically connected to the central conductors 204a to 204h, respectively.
  • the barrels 122a to 122h respectively surround the central conductors 204a to 204h when viewed downward. In the present embodiment, the barrels 122a to 122h respectively surround the sockets 123a to 123h when viewed downward.
  • Barrels 122a to 122d are lined up in this order from left to right.
  • the barrel 122d is arranged to the right of the barrel 122c.
  • the barrel 122c is located to the right of the barrel 122b.
  • the barrel 122b is located to the right of the barrel 122a.
  • the barrels 122e to 122h are lined up in this order from left to right.
  • the barrels 122e to 122h are arranged in front of the barrels 122a to 122d. Since the barrels 122a to 122h have the same structure, the barrels 122a will be described below. The description of the barrels 122b to 122h will be omitted.
  • the barrel 122a is attached to the lower end of the coaxial cable 202a. As a result, the barrel 122a is electrically connected to the outer conductor 206a. However, the barrel 122a is not electrically connected to the center conductor 204a. More specifically, the barrel 122a has a cylindrical shape with a central axis extending in the vertical direction. The central axis of the barrel 122a coincides with the central axis of the socket 123a. Further, the socket 123a is housed inside the barrel 122a. As a result, the barrel 122a surrounds the socket 123a when viewed downward. The upper end of the socket 123a is open. The lower end of the socket 123a is open.
  • the outer conductor 206a is exposed at the lower end of the coaxial cable 202a.
  • the outer conductor 206a is inserted into the barrel 122a through an opening at the upper end of the barrel 122a.
  • the outer conductor 206a is fixed to the barrel 122a by soldering. As a result, the outer conductor 206a is electrically connected to the barrel 122a.
  • the barrel 122a having the above structure is made of brass, for example.
  • the bushings 130a to 130h insulate the barrels 122a to 122h and the sockets 123a to 123h, respectively.
  • the bushings 130a to 130d are lined up in this order from left to right.
  • the bushing 130d is arranged to the right of the bushing 130c.
  • the bushing 130c is located to the right of the bushing 130b.
  • the bushing 130b is arranged to the right of the bushing 130a.
  • the bushings 130e to 130h are lined up in this order from left to right.
  • the bushings 130e to 130h are arranged in front of the bushings 130a to 130d. Since the bushings 130a to 130h have the same structure, the bushings 130a will be described below. The description of bushings 130b to 130h will be omitted.
  • the bushing 130a is attached to the lower end of the barrel 122a and the lower end of the socket 123a. More specifically, the bushing 130a has a cylindrical shape with a central axis extending in the vertical direction. The central axis of the bushing 130a coincides with the central axis of the barrel 122a and the central axis of the socket 123a. The lower end of the socket 123a is inserted inside the bushing 130a. The bushing 130a is arranged at the lower end inside the barrel 122a.
  • the bushing 130a is made of an insulating resin.
  • the bushing 130a is made of, for example, an epoxy resin. As a result, the barrel 122a is insulated from the socket 123a.
  • the cable adapter 105 supports the barrels 122a to 122h in a state of being electrically connected to the barrels 122a to 122h. More specifically, as shown in FIG. 5, the cable adapter 105 has a shape in which a cylindrical shape and a rectangular parallelepiped shape are combined. The upper part of the cable adapter 105 has a cylindrical shape having a central axis extending in the vertical direction. The lower part of the cable adapter 105 has a rectangular parallelepiped shape. The cable adapter 105 is provided with eight through holes. The eight through holes penetrate the cable adapter 105 in the vertical direction. The barrels 122a to 122h are inserted into the eight through holes.
  • the cable adapter 105 holds the barrels 122a to 122h. Further, the outer peripheral surfaces of the barrels 122a to 122h are in contact with the inner peripheral surfaces of the eight through holes, respectively. As a result, the cable adapter 105 is electrically connected to the barrels 122a to 122h.
  • the cable adapter 105 is connected to the ground potential.
  • the cable adapter 105 is made of a highly conductive metal.
  • the cable adapter 105 is made of, for example, SUS.
  • the signal pins 120a to 120h (the signal pin 120a is the first signal pin, the signal pin 120b is the second signal pin, and the signal pin 120c is the third signal pin) are electrically connected to the sockets 123a to 123h, respectively, as shown in FIG. It is connected to the. However, the signal pins 120e to 120h are not shown in FIG.
  • the signal pins 120a to 120h are located below the central conductors 204a to 204h, respectively.
  • the signal pins 120a to 120h each extend in the vertical direction. In this embodiment, the signal pins 120a to 120h extend downward from the sockets 123a to 123h, respectively.
  • the signal pins 120a to 120d are arranged in a row from left to right in this order.
  • the signal pin 120d is arranged to the right of the signal pin 120c.
  • the signal pin 120c is arranged to the right of the signal pin 120b.
  • the signal pin 120b is arranged to the right of the signal pin 120a.
  • the signal pins 120e to 120h are arranged in a row from left to right in this order.
  • the signal pins 120e to 120h are arranged in front of the signal pins 120a to 120d. Since the signal pins 120a to 120h have the same structure, the signal pins 120a will be described below. The description of the signal pins 120b to 120h will be omitted.
  • the signal pin 120a is a terminal to which a high frequency signal having a relatively high frequency is applied.
  • the high frequency signal having a relatively high frequency is, for example, a millimeter wave signal or a microwave signal having a frequency of 0.3 GHz to 0.3 THz.
  • the signal pin 120a is a rod-shaped member extending in the vertical direction.
  • the signal pin 120a is electrically connected to the center conductor 204a.
  • the upper end of the signal pin 120a is in contact with the lower end of the socket 123a.
  • the signal pin 120a is electrically connected to the socket 123a.
  • the signal 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.
  • the shape of the tubular portion 1202a may be a polygonal column shape such as a hexagonal column.
  • the diameters of the upper end and the lower end of the tubular portion 1202a are smaller than the diameter of the remaining 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 inside 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 inside 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.
  • the upper pin 1206a cannot pass through the tubular portion 1202a in the upward direction.
  • the upper end of the upper pin 1206a is in contact with the lower end of the socket 123a.
  • the spring 1208a is arranged inside 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 signal pin 120a having the above structure can be expanded and contracted in the vertical direction.
  • the signal pin 120a as described above is made of brass, for example.
  • the signal pin 120a is supported by the plunger 102 in a state of being insulated from the plunger 102, as will be described later.
  • the ground pins 220a to 220h are electrically connected to the cable adapter 105 as shown in FIGS. 4 and 7, respectively. However, the ground pins 220e to 220h are not shown.
  • the ground pins 220a to 220h each extend downward from the cable adapter 105. More specifically, the ground pins 220a to 220h are terminals connected to the ground potential.
  • the ground pins 220a to 220h are rod-shaped members extending in the vertical direction.
  • the upper ends of the ground pins 220a to 220h are in contact with the cable adapter 105. In this embodiment, the upper ends of the ground pins 220a to 220h are in contact with the lower surface of the cable adapter 105. As a result, the ground pin 220a is electrically connected to the cable adapter 105.
  • the ground pins 220a to 220d are arranged in a row from left to right in this order. More precisely, the signal pins 120a to 120d and the ground pins 220a to 220d are arranged in a row alternately from left to right.
  • the ground pin 220a extends in the vertical direction on the right side of the signal pin 120a and on the left side of the signal pin 120b.
  • the ground pin 220b extends in the vertical direction on the right side of the signal pin 120b and on the left side of the signal pin 120c.
  • the ground pin 220c extends in the vertical direction to the right of the signal pin 120c and to the left of the signal pin 120d.
  • the ground pin 220d extends in the vertical direction to the right of the signal pin 120d.
  • the ground pins 220e to 220h are arranged in a row from left to right in this order. More precisely, the signal pins 120e to 120h and the ground pins 220e to 220h are arranged in a row alternately from left to right.
  • the ground pins 220e to 220h are arranged in front of the ground pins 220a to 220d. Since the structure of the signal pins 120a can be used for the structures of the ground pins 220a to 220d, the description thereof will be omitted.
  • the ground pins 220a to 220h as described above are made of brass, for example.
  • the ground pins 220a to 220h are supported by the plunger 102 in a state of being electrically connected to the plunger 102, as will be described later.
  • the plunger 102 is a tubular member extending in the vertical direction.
  • the plunger 102 has a cylindrical shape having a central axis extending in the vertical direction.
  • the plunger 102 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 102.
  • the plunger 102 surrounds the signal pins 120a to 120h and the ground pins 220a to 220h when viewed downward. Therefore, the signal pins 120a to 120h and the ground pins 220a to 220h extend in the vertical direction in the through hole H1.
  • the lower end of the plunger 102 is located below the lower ends of the signal pins 120a to 120h and the lower ends of the ground pins 220a to 220h. As a result, the plunger 102 surrounds the lower ends of the signal pins 120a to 120h and the lower ends of the ground pins 220a to 220h when viewed downward. However, the plunger 102 is not electrically connected to the signal pins 120a to 120h. The plunger 102 is electrically connected to the ground pins 220a to 220h. The plunger 102 is connected to the ground potential.
  • the plunger 102 exists on the left side of the signal pin 120a, and the pin does not exist. That is, the signal pin and the ground pin do not exist between the signal pin 120a and the plunger 102.
  • the plunger 102 is electrically connected to the cable adapter 105.
  • the cable adapter 105 is inserted in the upper part of the through hole H1 of the plunger 102.
  • the inner peripheral surface of the through hole H1 is in contact with the outer peripheral surface of the cable adapter 105.
  • the plunger 102 is electrically connected to the cable adapter 105.
  • the plunger 102 is made of a highly conductive metal.
  • the plunger 102 is made of, for example, SUS.
  • the bushings 124 and 126 (insulating support members) support the signal pins 120a to 120h and the ground pins 220a to 220h. More specifically, as shown in FIG. 5, the bushings 124 and 126 each have a rectangular parallelepiped shape. The bushing 124 is located below the bushing 126. By combining the bushing 124 and the bushing 126, a rectangular parallelepiped insulating support member is formed.
  • the bushings 124 and 126 are provided with 16 through holes.
  • the 16 through holes penetrate the bushings 124 and 126 in the vertical direction.
  • the signal pins 120a to 120h and the ground pins 220a to 220h are inserted into 16 through holes.
  • the bushings 124 and 126 support the signal pins 120a to 120h and the ground pins 220a to 220h.
  • the bushings 124 and 126 are supported by the plunger 102 as shown in FIG. More specifically, bushings 124 and 126 are inserted in the lower portion of the through hole H1 of the plunger 102. As a result, the bushings 124 and 126 are arranged under the cable adapter 105.
  • the bushings 124 and 126 are made of an insulating resin.
  • the bushings 124 and 126 are made of, for example, an epoxy resin. Therefore, the plunger 102 is not electrically connected to the signal pins 120a to 120h.
  • the ground pin support member 132 supports the ground pins 220a to 220h in a state of being electrically connected to the ground pins 220a to 220h. More specifically, as shown in FIG. 6, the ground pin support member 132 is a plate-shaped member having a rectangular shape when viewed upward. The ground pin support member 132 is arranged below the center of the ground pins 220a to 220h in the vertical direction. In this embodiment, the ground pin support member 132 is fixed to the lower surface of the bushing 124.
  • each of the lower end portions of the ground pins 220a to 220h is thinner than the upper portion of the lower end portions of the ground pins 220a to 220h.
  • the ground pin support member 132 supports the lower ends of the ground pins 220a to 220h. Further, the ground pin support member 132 is in contact with the plunger 102 as shown in FIG. As a result, the ground pin support member 132 is electrically connected to the plunger 102. The ground pin support member 132 is connected to the ground potential.
  • the ground pin support member 132 is provided with 16 through holes.
  • the 16 through holes penetrate the ground pin support member 132 in the vertical direction.
  • the signal pins 120a to 120h and the ground pins 220a to 220h pass through 16 through holes.
  • the diameter of the eight through holes through which the signal pins 120a to 120h penetrate is larger than the diameter of the signal pins 120a to 120h.
  • a bushing 124 exists between the ground pin support member 132 and the signal pins 120a to 120h. Therefore, the signal pins 120a to 120h are fixed to the ground pin support member 132 via the bushing 124.
  • the ground pin support member 132 is not electrically connected to the signal pins 120a to 120h.
  • the diameters of the eight through holes through which the ground pins 220a to 220h penetrate are substantially the same as the diameters of the ground pins 220a to 220h.
  • the ground pin support member 132 is in contact with the ground pins 220a to 220h.
  • the ground pin support member 132 is made of a conductive member.
  • the conductive member is, for example, a metal such as SUS.
  • the ground pin support member 132 is electrically connected to the ground pins 220a to 220h.
  • the ring 103 is a tubular member extending in the vertical direction.
  • the ring 103 has a cylindrical shape having a central axis extending in the vertical direction.
  • the ring 103 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 ring 103.
  • the ring 103 is arranged on the plunger 102 so as to contact the upper end of the plunger 102.
  • the ring 103 surrounds the coaxial cables 202a to 202h when viewed downward. Therefore, the coaxial cables 202a to 202h extend in the vertical direction in the through hole H4.
  • the ring 103 is not electrically connected to the central conductors 204a to 204h.
  • the ring 103 is electrically connected to the outer conductors 206a to 206h.
  • the ring 103 is connected to the ground potential.
  • the ring 103 is preferably made of a highly conductive metal.
  • the ring 103 is made of, for example, SUS.
  • the ring 103 may be made of an insulating resin.
  • 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 and the ring 103.
  • the coaxial cables 202a to 202h pass through the inside of the housing 104 in the vertical direction.
  • the through hole H1, the through hole H2, and the through hole H4 overlap each other.
  • Such a housing 104 is made of a highly conductive metal.
  • the housing 104 is made of, for example, SUS.
  • the spacer 109 is arranged between the cable adapter 105 and the housing 104 in the vertical direction.
  • the spacer 109 has a disk shape. When viewed downward, the spacer 109 is provided with two slits extending in the left-right direction. The coaxial cables 202a to 202h pass through these two slits in the vertical direction. As a result, the spacer 109 is positioned in the front-rear direction and the left-right direction of the coaxial cables 202a to 202h.
  • Such a spacer 109 is made of a highly conductive metal.
  • the spacer 109 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 passes through the through hole H3 in the vertical direction.
  • 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 ring 103 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 ring 103.
  • the plunger 102, the ring 103 and the housing 104 are integrated. Therefore, when the plunger 102 is pushed upward, the spring 108 contracts, and the plunger 102, the ring 103, and the housing 104 are displaced upward with respect to the flange 106.
  • the inspection unit 10 is connected to a connector having eight signal terminals and eight ground terminals. High frequency signals having a relatively high frequency are output from the eight signal terminals. The eight ground terminals are connected to the ground potential.
  • the inspection connector 100 is set on the connector. Then, the inspection connector 100 is lowered. As a result, the signal pins 120a to 120h come into contact with the eight signal terminals of the connector. That is, a high frequency signal having a relatively high frequency is applied to the signal pins 120a to 120h. At this time, the signal pins 120a to 120h are pushed upward by the eight signal terminals. Therefore, the signal pins 120a to 120h are displaced upward with respect to the plunger 102.
  • the ground pins 220a to 220h come into contact with the eight ground terminals. That is, the ground pins 220a to 220h are connected to the ground potential. At this time, the ground pins 220a to 220h are pushed upward by the ground terminal. Therefore, the ground pins 220a to 220h are displaced upward with respect to the plunger 102.
  • the measuring device connected to the inspection connector 100 can measure a high frequency signal having a relatively high frequency while ensuring connectivity to the connector.
  • a high frequency signal can be accurately measured even when a plurality of terminals to be measured include a signal terminal and a ground terminal. More specifically, in the inspection connector 100, the barrel 122b surrounds the central conductor 204b when viewed downward. Further, the barrel 122b is arranged to the right of the barrel 122a. Therefore, the set of the barrel 122b having the coaxial structure and the center conductor 204b is arranged to the right of the set of the barrel 122a having the coaxial structure and the center conductor 204a.
  • the barrels 122a and 122b connected to the ground potential are located between the central conductor 204a to which the high-frequency signal is applied and the socket 123b to which the high-frequency signal is applied. Therefore, in the inspection connector 100, the ground pin 220a extends in the vertical direction on the right side of the signal pin 120a and on the left side of the signal pin 120b. As a result, the ground pin 220a connected to the ground potential is located between the signal pin 120a to which the high frequency signal is applied and the signal pin 120b to which the high frequency signal is applied.
  • a conductor to which a high frequency signal is applied is called a signal conductor.
  • a conductor connected to the ground potential is called a ground conductor.
  • the positional relationship between the signal conductor and the ground conductor in the section where the signal pins 120a and 120b are provided is such that the signal conductor and the ground in the section where the lower end of the center conductor 204a and the lower end of the center conductor 204b are provided. Get closer to the positional relationship with the conductor.
  • the electrical characteristics such as the characteristic impedance in the section where the signal pins 120a and 120b are provided approach the electrical characteristics such as the characteristic impedance in the section where the lower end of the central conductor 204a and the lower end of the center conductor 204b are provided. .. From the above, according to the inspection connector 100, the high frequency signal can be accurately measured even when the plurality of terminals to be measured include the signal terminal and the ground terminal.
  • ground pin 220a connected to the ground potential is located between the signal pin 120a to which the high frequency signal is applied and the signal pin 120b to which the high frequency signal is applied. This improves the isolation between the signal pin 120a and the signal pin 120b.
  • the inspection connector 100 can be miniaturized. More specifically, in the inspection connector, when the ground pin is connected to the barrel and socket having a coaxial structure in the same way that a plurality of signal pins are connected to the barrel and socket having a coaxial structure, the inspection connector is connected. Increase in size. On the other hand, in the inspection connector 100, the ground pin 220a connected to the ground potential is located between the signal pin 120a to which the high frequency signal is applied and the signal pin 120b to which the high frequency signal is applied. As a result, the ground pin 220a does not have to be connected to the barrel 122a and the socket 123a having a coaxial structure. As a result, the inspection connector 100 can be miniaturized.
  • ground pins 220a to 220h are used. Therefore, the ground pins 220a to 220h can easily come into contact with each of the plurality of ground terminals. As a result, according to the inspection connector 100, the high frequency signal can be accurately measured even when the plurality of terminals to be measured include the signal terminal and the ground terminal.
  • a high frequency signal can be accurately measured even when a plurality of terminals to be measured include a signal terminal and a ground terminal. More specifically, in the inspection connector 100, the plunger 102 is present and the pin is not present on the left side of the signal pin 120a in the cross section orthogonal to the front-rear direction. As a result, the plunger 102 connected to the ground potential is located to the left of the signal pin 120a. The ground pin 220a connected to the ground potential is located to the right of the signal pin 120a.
  • the cross-sectional structure of the signal pin 120a, the plunger 102 and the ground pin 220a approaches the cross-sectional structure of the lower end portion of the barrel 122a and the center conductor 204a.
  • the electrical characteristics such as the characteristic impedance in the section where the signal pin 120a is provided approaches the electrical characteristics such as the characteristic impedance in the section where the socket 123a is provided. From the above, according to the inspection connector 100, the high frequency signal can be accurately measured even when the plurality of terminals to be measured include the signal terminal and the ground terminal.
  • the ground pins 220a and 220b will be described as an example.
  • the inspection connector 100 does not include the ground pin support member 132, the ground pin 220a and the ground pin 220b are electrically connected via the cable adapter 105.
  • the ground pin 220a and the ground pin 220b do not come into contact with each other. It becomes difficult for the entire ground pins 220a and 220b to be maintained at the ground potential. That is, a potential difference is likely to occur between the upper end of the ground pin 220a and the lower end of the ground pin 220a.
  • a potential difference is likely to occur between the upper end of the ground pin 220b and the lower end of the ground pin 220b. In this case, resonance may occur in the ground pins 220a and 220b.
  • the ground pin support member 132 supports the ground pin 220a and the ground pin 220b in a state of being electrically connected to the ground pin 220a and the ground pin 220b.
  • a potential difference may occur between the ground pin support member 132 and the lower end of the ground pin 220a.
  • a potential difference may occur between the ground pin support member 132 and the lower end of the ground pin 220b.
  • the length of the section where the potential difference is likely to occur when the ground pin support member 132 is provided is shorter than the length of the section where the potential difference is likely to occur when the ground pin support member 132 is not provided. As the length of the section where the potential difference is likely to occur becomes shorter, the potential difference becomes smaller.
  • the inspection connector 100 As a result, the occurrence of unnecessary resonance is suppressed. From the above, according to the inspection connector 100, the influence of resonance generated at the ground pins 220a to 220h can be suppressed. Such an effect is particularly effective in the transmission of high frequency signals in the millimeter wave band and the microwave band.
  • the ground pin support member 132 is arranged below the center of the ground pins 220a to 220h in the vertical direction.
  • the length of the section where the potential difference is likely to occur in the ground pins 220a to 220h is further shortened.
  • the occurrence of unnecessary resonance is suppressed.
  • the influence of resonance generated in the ground pins 220a to 220h can be suppressed more effectively. Such an effect is particularly effective in the transmission of high frequency signals in the millimeter wave band and the microwave band.
  • each of the lower end portions of the ground pins 220a to 220h is thinner than the upper portion of the lower end portions of the ground pins 220a to 220h.
  • the ground pin support member 132 supports the lower ends of the ground pins 220a to 220h. As a result, the combined thickness of the lower end portions of the ground pins 220a to 220h and the ground pin support member 132 becomes closer to the thickness of the upper portion of the lower end portions of the ground pins 220a to 220h.
  • the distance between the ground pin support member 132 and the signal pins 120a to 120h becomes closer to the distance between the upper portion of the lower end portion of the ground pins 220a to 220h and the signal pins 120a to 120h. As a result, in the inspection connector 100, it is possible to suppress fluctuations in the characteristic impedance in the section where the signal pins 120a to 120h are provided.
  • the portion where the ground pins 220a to 220h are thin is supported by the ground pin support member 132. Therefore, damage to the ground pins 220a to 220h is suppressed.
  • the generation of unnecessary radiation is suppressed. More specifically, the lower end of the plunger 102 is located below the lower ends of the signal pins 120a to 120h and the lower ends of the ground pins 220a to 220h. As a result, the plunger 102 surrounds the lower ends of the signal pins 120a to 120h and the lower ends of the ground pins 220a to 220h when viewed downward. As a result, it is possible to suppress the generation of unnecessary radiation from the signal pins 120a to 120h and the ground pins 220a to 220h to the outside of the inspection connector 100. Further, the signal pins 120a to 120h and the ground pins 220a to 220h are suppressed from being affected by noise from outside the inspection connector 100.
  • a bushing 124 exists between the ground pin support member 132 and the signal pins 120a to 120h. Therefore, the signal pins 120a to 120h are fixed to the ground pin support member 132 via the bushing 124. As a result, damage to the signal pins 120a to 120 is suppressed.
  • FIG. 8 is a cross-sectional view of the inspection connector 100a.
  • FIG. 8 shows the structure of the inspection connector 100a in a cross section orthogonal to the front-rear direction.
  • FIG. 9 is an enlarged cross-sectional view of the inspection connector 100a.
  • the inspection connector 100a is different from the inspection connector 100 in the structure of bushings 130a to 130h (bushings 130d to 130h are not shown). More specifically, in the inspection connector 100, the bushings 130a to 130h are housed inside the barrels 122a to 122h, respectively. On the other hand, in the inspection connector 100a, a part of the bushings 130a to 130h is housed inside the barrels 122a to 122h, respectively. The rest of the bushings 130a to 130h are arranged outside the barrels 122a to 122h, respectively. More specifically, the upper portion of the bushings 130a to 130h has a cylindrical shape having a central axis extending in the vertical direction.
  • the lower portion of the bushings 130a to 130h has a cylindrical shape having a central axis extending in the vertical direction.
  • the diameter of the lower outer peripheral surface of the bushings 130a to 130h is larger than the diameter of the upper outer peripheral surface of the bushings 130a to 130h.
  • the diameter of the outer peripheral surface of the upper portion of the bushings 130a to 130h is substantially equal to the diameter of the inner peripheral surface of the barrels 122a to 122h.
  • the high frequency signal can be accurately measured even when the plurality of terminals to be measured include the signal terminal and the ground terminal for the same reason as the inspection connector 100. Further, according to the inspection connector 100a, the influence of resonance generated in the ground pins 220a to 220h can be suppressed for the same reason as the inspection connector 100.
  • the inspection connector according to the present invention is not limited to the inspection connectors 100 and 100a according to the embodiment, and can be changed within the scope of the gist thereof.
  • the surfaces of the bushings 124 and 126 excluding the portions where the signal pins 120a to 120h come into contact with the bushings 124 and 126 may be metal-plated. That is, in the bushings 124 and 126, the inner peripheral surface of the through hole into which the signal pins 120a to 120h are inserted is not metal-plated. As a result, the ground pins 220a to 220h are electrically connected via metal plating. As a result, in the inspection connectors 100 and 100a, the influence of resonance generated at the ground pins 220a to 220h can be suppressed.
  • the metal plating is, for example, gold plating.
  • the number of signal pins 120a to 120h in the inspection connectors 100 and 100a is not limited to eight.
  • the inspection connectors 100 and 100a may include at least signal pins 120a and 120b.
  • the number of ground pins 220a to 220h is not limited to eight.
  • the inspection connectors 100 and 100a may include at least a ground pin 220a.
  • a pin may be present on the left side of the signal pin 120a.
  • the upper ends of the ground pins 220a to 220h do not have to be in contact with the cable adapter 105.
  • the ground pins 220a to 220h may be electrically connected to the cable adapter 105. Therefore, the ground pins 220a to 220h may be electrically connected to the cable adapter 105 via other conductive members.
  • the ground pin support member 132 is not an indispensable configuration. Further, the ground pin support member 132 may be arranged above the center of the ground pins 220a to 220h in the vertical direction.
  • sockets 123a to 123h are not essential configurations in the inspection connectors 100 and 100a.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Leads Or Probes (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
PCT/JP2021/015483 2020-04-22 2021-04-14 検査用コネクタ及び検査用ユニット WO2021215334A1 (ja)

Priority Applications (3)

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CN202190000326.8U CN218938344U (zh) 2020-04-22 2021-04-14 检查用连接器以及检查用单元
JP2022517001A JP7327659B2 (ja) 2020-04-22 2021-04-14 検査用コネクタ及び検査用ユニット
TW110114119A TWI778588B (zh) 2020-04-22 2021-04-20 檢查用連接器及檢查用單元

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JP2020-075912 2020-04-22

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DE102022106991A1 (de) 2022-03-24 2023-09-28 Ingun Prüfmittelbau Gmbh Hochfrequenz-Prüfstiftvorrichtung

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TW202210841A (zh) 2022-03-16
CN218938344U (zh) 2023-04-28
JP7327659B2 (ja) 2023-08-16
TWI778588B (zh) 2022-09-21

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