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WO2022038916A1 - Connecteur coaxial - Google Patents

Connecteur coaxial Download PDF

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Publication number
WO2022038916A1
WO2022038916A1 PCT/JP2021/025735 JP2021025735W WO2022038916A1 WO 2022038916 A1 WO2022038916 A1 WO 2022038916A1 JP 2021025735 W JP2021025735 W JP 2021025735W WO 2022038916 A1 WO2022038916 A1 WO 2022038916A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
coaxial connector
shield member
movable
movable terminal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2021/025735
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English (en)
Japanese (ja)
Inventor
陸宏 常門
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to CN202190000699.5U priority Critical patent/CN219677724U/zh
Publication of WO2022038916A1 publication Critical patent/WO2022038916A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
    • H01R24/46—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/50—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]

Definitions

  • the present invention relates to a coaxial connector, and more particularly to a coaxial connector having at least two sets of fixed terminals and movable terminals.
  • the coaxial connector is mounted on a communication device such as a mobile phone, for example.
  • the coaxial connector has a fixed terminal and a movable terminal, and is mounted on a circuit board.
  • a coaxial connector having such a fixed terminal and a movable terminal is also referred to as a coaxial connector with a switch.
  • an antenna is connected to a fixed terminal, and a transmission / reception circuit of a circuit board is connected to a movable terminal.
  • the movable terminal is connected in contact with the fixed terminal by its own elastic force, and the transmission / reception circuit is connected to the antenna via the movable terminal and the fixed terminal.
  • the communication device is used in this state.
  • the electrical characteristics of the transmitter / receiver circuit are inspected during manufacturing and maintenance of communication equipment.
  • the other coaxial connector connected to the measuring instrument is connected to the coaxial connector with a switch.
  • the probe of the other coaxial connector comes into contact with the movable terminal and pushes the movable terminal.
  • the movable terminal is elastically deformed and separated from the fixed terminal. Therefore, the probe is connected to the movable terminal while the connection between the fixed terminal and the movable terminal is cut off. That is, the measuring instrument is connected to the transmission / reception circuit via the probe and the movable terminal. In this state, the electrical characteristics of the transmission / reception circuit are inspected.
  • Patent Document 1 International Publication No. 2014/013834 discloses a coaxial connector having two sets of fixed terminals and movable terminals. The two movable terminals are connected to the two circuits on the circuit board, respectively. By connecting the coaxial connector of the measuring instrument to the coaxial connector with a switch, the electrical characteristics of the two circuits on the circuit board can be inspected.
  • An object of the present invention is to provide a coaxial connector having high isolation characteristics between two sets of fixed terminals and movable terminals.
  • the coaxial connector according to the embodiment of the present invention includes a main body, a set of a first fixed terminal and a first movable terminal, a set of a second fixed terminal and a second movable terminal, and a shield member.
  • the main body has an internal space.
  • the main body is formed with a first hole and a second hole that penetrate the upper part of the main body in the vertical direction and communicate with the internal space.
  • the set of the first fixed terminal and the first movable terminal is provided corresponding to the first hole.
  • the set of the first fixed terminal and the first movable terminal is housed in the main body.
  • the first movable terminal has a first leaf spring portion.
  • the first leaf spring portion is movable in the vertical direction and comes into contact with the first fixed terminal in the internal space of the main body.
  • the set of the second fixed terminal and the second movable terminal is provided corresponding to the second hole, and is arranged in parallel with the set of the first fixed terminal and the first movable terminal.
  • the set of the second fixed terminal and the second movable terminal is housed in the main body.
  • the second movable terminal has a second leaf spring portion.
  • the second leaf spring portion is movable in the vertical direction and comes into contact with the second fixed terminal in the internal space of the main body.
  • the shield member is arranged between the set of the first fixed terminal and the first movable terminal and the set of the second fixed terminal and the second movable terminal, and has conductivity. The shield member does not overlap with either the first hole or the second hole when viewed in the vertical direction.
  • the isolation characteristic between the two sets of fixed terminals and movable terminals is high.
  • FIG. 1 is a perspective view of a coaxial connector according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of the coaxial connector.
  • FIG. 3 is a vertical cross-sectional view of the coaxial connector and is a diagram showing a normal state.
  • FIG. 4 is a top view of the coaxial connector.
  • FIG. 5 is a cross-sectional view of the coaxial connector along the VV cutting line of FIG.
  • FIG. 6 is a bottom view of the coaxial connector.
  • FIG. 7 is a vertical cross-sectional view of the coaxial connector, and is a diagram showing a state when inspecting the electrical characteristics of the circuit connected to the coaxial connector.
  • FIG. 1 is a perspective view of a coaxial connector according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of the coaxial connector.
  • FIG. 3 is a vertical cross-sectional view of the coaxial connector and is a diagram showing a normal state.
  • FIG. 4 is a
  • FIG. 8 is a schematic view of the right movable terminal, the right fixed terminal, and the shield member when viewed in the left-right direction.
  • FIG. 9 is an exploded perspective view of the coaxial connector according to the modified example.
  • FIG. 10 is a cross-sectional view of the coaxial connector according to the modified example.
  • FIG. 11 is a schematic diagram of the coaxial connector used for the numerical simulation.
  • FIG. 12 is a diagram showing the results of numerical simulation.
  • the coaxial connector of one embodiment includes a main body, a set of a first fixed terminal and a first movable terminal, a set of a second fixed terminal and a second movable terminal, and a shield member.
  • the main body has an internal space.
  • the main body is formed with a first hole and a second hole that penetrate the upper part of the main body in the vertical direction and communicate with the internal space.
  • the set of the first fixed terminal and the first movable terminal is provided corresponding to the first hole.
  • the set of the first fixed terminal and the first movable terminal is housed in the main body.
  • the first movable terminal has a first leaf spring portion. The first leaf spring portion is movable in the vertical direction and comes into contact with the first fixed terminal in the internal space of the main body.
  • the set of the second fixed terminal and the second movable terminal is provided corresponding to the second hole, and is arranged in parallel with the set of the first fixed terminal and the first movable terminal.
  • the set of the second fixed terminal and the second movable terminal is housed in the main body.
  • the second movable terminal has a second leaf spring portion.
  • the second leaf spring portion is movable in the vertical direction and comes into contact with the second fixed terminal in the internal space of the main body.
  • the shield member is arranged between the set of the first fixed terminal and the first movable terminal and the set of the second fixed terminal and the second movable terminal, and has conductivity. The shield member does not overlap with either the first hole or the second hole when viewed in the vertical direction (first configuration).
  • the coaxial connector having the first configuration includes a set of a first fixed terminal and a first movable terminal and a set of a second fixed terminal and a second movable terminal
  • the coaxial connector with a switch having two sets of switches is provided.
  • the shield member is arranged between the set of the first fixed terminal and the first movable terminal and the set of the second fixed terminal and the second movable terminal.
  • the set of the first fixed terminal and the first movable terminal is also referred to as a first terminal set.
  • the set of the second fixed terminal and the second movable terminal is also referred to as the second terminal set.
  • the shield member Since the shield member has conductivity, it blocks electromagnetic waves. Therefore, even if an electromagnetic wave is radiated from the signal path of one of the first terminal set and the second terminal set, the electromagnetic wave can be blocked by the shield member. This makes it less likely that noise will occur in the signal path of the other terminal set. Therefore, the isolation characteristic between the set of the first fixed terminal and the first movable terminal and the set of the second fixed terminal and the second movable terminal is high. That is, the isolation characteristic between the two sets of fixed terminals and movable terminals is high.
  • the coaxial connector of the first configuration can be connected to the other coaxial connector connected to the measuring instrument.
  • the mating coaxial connector comprises two probes.
  • one of the two probes is also referred to as a first probe, and the other is also referred to as a second probe.
  • the first probe When the coaxial connector of the first configuration is connected to the other coaxial connector, the first probe inserts the first hole, contacts the first movable terminal, and further pushes down the first movable terminal. As a result, the first movable terminal is separated from the first fixed terminal, the connection between the first movable terminal and the first fixed terminal is cut off, while the first probe is connected to the first movable terminal. Similarly, the second probe passes through the second hole, comes into contact with the second movable terminal, and further pushes down the second movable terminal. As a result, the second movable terminal is separated from the second fixed terminal, the connection between the second movable terminal and the second fixed terminal is cut off, while the second probe is connected to the second movable terminal.
  • the shield member does not overlap with either the first hole or the second hole when viewed in the vertical direction. Therefore, the first probe and the second probe do not come into contact with the shield member, respectively. As a result, a short circuit between the first probe and the shield member can be suppressed, and a short circuit between the second probe and the shield member can be suppressed. Therefore, the reliability of the measurement by the first probe and the second probe is increased.
  • the shield member is preferably a plate-shaped member (second configuration).
  • the width direction of the shield member coincides with the vertical direction of the coaxial connector. That is, the thickness direction of the shield member coincides with the arrangement direction of the set of the first fixed terminal and the first movable terminal and the set of the second fixed terminal and the second movable terminal.
  • the shape of the shield member is not particularly limited as long as the shield member is arranged between the first terminal set and the second terminal set.
  • the shield member can be safely arranged even when the gap between the set of the first fixed terminal and the first movable terminal and the set of the second fixed terminal and the second movable terminal is small. Can be done.
  • the area where the shield member exists is as seen in the arrangement direction of the set of the first fixed terminal and the first movable terminal and the set of the second fixed terminal and the second movable terminal. It is preferable to include the moving region of the first leaf spring portion and the moving region of the second leaf spring portion (third configuration).
  • the coaxial connector of the third configuration there is a shield member between the first leaf spring portion and the second leaf spring portion regardless of the position of the first leaf spring portion in the moving region. do. Similarly, there is a shield member between the first leaf spring portion and the second leaf spring portion regardless of the position of the second leaf spring portion in the moving region. Therefore, the isolation characteristic between the set of the first fixed terminal and the first movable terminal and the set of the second fixed terminal and the second movable terminal is improved at both the normal use and the inspection.
  • the main body may include an external terminal exposed to the outside of the coaxial connector.
  • the shield member is electrically connected to the external terminal (fourth configuration).
  • the external terminal can be used, for example, to connect with the outer conductor provided in the other coaxial connector.
  • the external terminal can be set to the ground potential
  • the shield member can be set to the same ground potential as the external terminal. The ground potential shield member further improves the isolation characteristics of each of the first terminal set and the second terminal set.
  • the external terminal preferably includes an upper wall and two side walls.
  • the upper wall has a portion corresponding to the first hole and the second hole.
  • the two side walls extend from the edge of the upper wall and cover the set of the first fixed terminal and the first movable terminal and the set of the second fixed terminal and the second movable terminal from both sides (fifth configuration).
  • electromagnetic waves directed from the outside of the coaxial connector to the first terminal set and the second terminal set eg, electromagnetic waves radiated from wiring or the like arranged outside the coaxial connector
  • the isolation characteristics of the first terminal set and the second terminal set are further improved.
  • the shield member may be electrically connected to the upper wall of the external terminal (sixth configuration). In this case, the shield member can be electrically connected to the external terminal at a short distance.
  • the shield member may be fitted in the holding recess formed on the bottom surface of the internal space in the main body (seventh configuration). According to the coaxial connector of the seventh configuration, the shield member is fitted and held in the holding recess. Therefore, the position of the shield member with respect to the main body is stable.
  • the shield member may be fitted in a holding hole that penetrates the lower part of the main body in the vertical direction (eighth configuration). According to the coaxial connector of the eighth configuration, the shield member is fitted and held in the holding hole. Therefore, the position of the shield member with respect to the main body is stable.
  • the shield member may have an exposed portion exposed on the lower surface of the main body.
  • the exposed portion may be connected to a ground conductor provided on the substrate on which the coaxial connector is mounted (9th configuration).
  • the exposed portion of the shield member on the lower surface of the main body can be used to mount the coaxial connector on the circuit board. Further, by mounting the coaxial connector on the substrate, the shield member can be set to the ground potential. The shield member having a ground potential further improves the isolation characteristics of each of the first terminal set and the second terminal set.
  • FIG. 1 is a perspective view of a coaxial connector 10 according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of the coaxial connector 10.
  • the coaxial connector 10 includes a main body 12, an internal conductor 19, and a shield member 25.
  • the main body 12 includes a lower case 18, an upper case 16, and an external terminal 14.
  • the external terminal 14 and the internal conductor 19 are both made of metal and have conductivity.
  • the external terminal 14 and the internal conductor 19 are made of, for example, SUS301 (JIS standard) stainless steel.
  • the shield member 25 has conductivity.
  • the material of the shield member 25 is not particularly limited as long as it has conductivity, but is, for example, SUS301 (JIS standard) stainless steel.
  • the lower case 18 and the upper case 16 are made of resin and have electrical insulation.
  • the shield member 25 of this embodiment is a plate-shaped member. The detailed configuration of the shield member 25 will be described later.
  • the upper case 16 and the external terminal 14 are stacked in this order on the lower case 18.
  • the direction in which the external terminal 14, the upper case 16, and the lower case 18 are overlapped, that is, the stacking direction is the vertical direction.
  • the side where the external terminal 14 is arranged is the upper side with respect to the lower case 18, and the side where the lower case 18 is arranged is the lower side with respect to the external terminal 14.
  • the internal conductor 19 includes a right movable terminal 20A, a right fixed terminal 22A, a left movable terminal 20B, and a left fixed terminal 22B.
  • the right movable terminal 20A is the first movable terminal
  • the right fixed terminal 22A is the first fixed terminal
  • the left movable terminal 20B is the second movable terminal
  • the left fixed terminal 22B is the second fixed terminal. That is, the set of the right movable terminal 20A and the right fixed terminal 22A is a set of the first movable terminal and the first fixed terminal, and corresponds to the first terminal set.
  • the set of the left movable terminal 20B and the left fixed terminal 22B is a set of the second movable terminal and the second fixed terminal, and corresponds to the second terminal set.
  • the set of the left movable terminal 20B and the left fixed terminal 22B is arranged in parallel with the set of the right movable terminal 20A and the right fixed terminal 22A.
  • the right movable terminal 20A and the right fixed terminal 22A are lined up along a predetermined direction.
  • the direction in which the right movable terminal 20A and the right fixed terminal 22A are lined up is the front-back direction.
  • the side where the right movable terminal 20A is arranged is the rear side with respect to the right fixed terminal 22A, and the side where the right fixed terminal 22A is arranged is the front side with respect to the right movable terminal 20A.
  • the left movable terminal 20B and the left fixed terminal 22B are arranged along the front-rear direction.
  • the left movable terminal 20B is arranged on the rear side with respect to the left fixed terminal 22B.
  • the direction orthogonal to the vertical direction and the front-back direction is the left-right direction.
  • the direction rotated 90 ° clockwise from the front is defined as the right
  • the direction rotated 90 ° counterclockwise from the front is defined as left. That is, the arrangement direction of the set of the right movable terminal 20A and the right fixed terminal 22A and the set of the left movable terminal 20B and the left fixed terminal 22B coincides with the left-right direction.
  • the lower case 18 is a plate-shaped member having a substantially rectangular shape in a plan view.
  • the opposite sides of the two sets of the lower case 18 are along the front-rear direction and the left-right direction, respectively.
  • a slit 53a extending in the front-rear direction is formed in the central portion of the lower case 18 in the left-right direction.
  • the slit 53a penetrates the lower case 18 in the thickness direction (vertical direction) thereof.
  • a groove 53b extending over the entire length of the lower case 18 in the front-rear direction is formed at the center of the lower surface of the lower case 18 in the left-right direction.
  • the groove 53b is connected to the slit 53a.
  • the slit 53a and the groove 53b are used to fit the shield member 25.
  • Strips 52a and 52b are formed on the right end and the left end of the lower case 18, respectively.
  • the strips 52a and 52b project upward from the upper surface of the lower case 18 and extend in the front-rear direction.
  • a rectangular parallelepiped notch 55a is formed in a region excluding the end portion in the front-rear direction.
  • a rectangular parallelepiped notch 55b is formed in a region excluding the end in the front-rear direction.
  • a pair of trapezoidal portions 58a and 58b are formed in the left-right direction on the front end side of the lower case 18.
  • the trapezoidal portions 58a and 58b project from the upper surface of the lower case 18.
  • the trapezoidal portion 58a on the right side is arranged between the slit 53a and the strip portion 52a on the right side.
  • the trapezoidal portion 58b on the left side is formed between the slit 53a and the strip portion 52b on the left side.
  • the trapezoidal portions 58a and 58b are used for fixing the right fixed terminal 22A and the left fixed terminal 22B to the main body 12, respectively.
  • the upper case 16 has a track-like contour shape extending in the left-right direction when viewed in the up-down direction.
  • the upper case 16 is formed with two holes 34A and 34B that penetrate the upper case 16 in the vertical direction.
  • the hole 34A is on the right side of the hole 34B.
  • the hole 34A on the right side is the first hole, and the hole 34B on the left side is the second hole.
  • the central axis CA of the hole 34A and the central axis CB of the hole 34B are both along the vertical direction.
  • the holes 34A and 34B are both circular.
  • the upper part of the hole 34A has a pot shape in which the opening cross-sectional area increases toward the upper side
  • the lower part of the hole 34A has a cylindrical shape having a substantially constant diameter in the vertical direction.
  • the upper portion of the hole 34B has a pot shape in which the opening cross-sectional area increases toward the upper side
  • the lower portion of the hole 34B has a cylindrical shape having a substantially constant diameter in the vertical direction.
  • a pair of rear plate portions 35a and 35b are provided on the rear side of the lower surface of the upper case 16 in the left-right direction.
  • the rear plate portions 35a and 35b project downward from the lower surface of the upper case 16 and are provided in parallel with the lower surface of the upper case 16.
  • the rear plate portion 35a is on the right side of the rear plate portion 35b.
  • a right front plate portion 36a is provided on the lower right front side of the lower surface of the upper case 16.
  • the right front plate portion 36a projects downward from the lower surface of the upper case 16 and is provided in parallel with the lower surface of the upper case 16.
  • the right front plate portion 36a is thinner than the rear plate portion 35a.
  • a plate portion similar to the right front plate portion 36a (not shown; hereinafter referred to as “left front plate portion”) is provided in parallel with the lower surface of the upper case 16.
  • the left front plate portion is thinner than the rear plate portion 35b.
  • Each of the rear plate portions 35a and 35b, the right front plate portion 36a, and the left front plate portion has a rectangular shape having two pairs of opposite sides along the front-rear direction and the left-right direction when viewed in the vertical direction.
  • the rear plate portion 35a and the right front plate portion 36a are fitted into the notch 55a formed in the right strip portion 52a.
  • the side surface of the rear plate portion 35a near the right rear corner is in contact with the inner surface of the notch 55a near the right rear corner.
  • the side surface of the right front plate portion 36a near the right front corner is in contact with the inner surface of the notch 55a near the right front corner.
  • the rear plate portion 35b and the left front plate portion are fitted into the notch 55b formed in the left strip portion 52b.
  • the side surface of the rear plate portion 35b near the left rear corner is in contact with the inner surface of the notch 55b near the left rear corner.
  • the side surface of the left front plate portion near the left front corner is in contact with the inner surface of the notch 55b near the left front corner.
  • FIG. 3 is a vertical sectional view of the coaxial connector 10.
  • FIG. 3 shows a cross section along the front-rear direction through the central axis CA of the hole 34A on the right side.
  • this cross section does not include the contact portion between the contact portion 20Ac of the right movable terminal 20A and the contact portion 22Ab of the right fixed terminal 22A. Including the department.
  • an internal space S is formed between the upper surface of the lower case 18 and the lower surface of the upper case 16.
  • the external terminal 14 comes into contact with the outer conductor of the other party coaxial connector for inspection, and normally functions as a ground terminal.
  • the external terminal 14 includes an upper wall 31, a tubular portion 32, and bent portions 33a, 33b.
  • the external terminal 14 is made of, for example, a stainless steel (for example, SUS301) plate.
  • the external terminal 14 is formed by subjecting a plate to various processes such as punching, bending, and drawing.
  • the outer surface of the external terminal 14 is plated (eg, Ni (nickel) plating, Au (gold) plating) as needed.
  • the upper wall 31 is plate-shaped and has a substantially rectangular contour when viewed along the vertical direction.
  • the two sets of opposite sides of the upper wall 31 are along the front-rear direction and the left-right direction, respectively.
  • Bent portions 33a and bent portions 33b are connected to the right and left sides of the upper wall 31, respectively.
  • the bent portion 33a and the bent portion 33b extend over the entire length of the main body 12 in the front-rear direction.
  • the bent portions 33a and 33b are formed by bending a plate-shaped body extending in the left-right direction from the upper wall 31. Specifically, as shown in FIG. 1, the bent portions 33a and 33b are bent so as to wrap around the lower surface of the lower case 18. As a result, the external terminal 14, the upper case 16, and the lower case 18 are fixed to each other and become one.
  • a tubular portion 32 projecting upward is provided in the central portion of the upper wall 31.
  • the portions of the upper case 16 corresponding to the holes 34A and 34B are open. From this opening edge portion, the tubular portion 32 extends upward.
  • the upper wall 31 projects outward from the lower end of the tubular portion 32 in a flange shape.
  • the tubular portion 32 When viewed in the vertical direction, the tubular portion 32 has a track-like shape extending in the left-right direction.
  • the outer conductor (not shown) of the mating coaxial connector for inspection is fitted around the tubular portion 32.
  • the tubular portion 32 is fitted around the upper case 16. As a result, the holes 34A and 34B penetrate the upper part of the main body 12 in the vertical direction.
  • the holes 34A and 34B communicate with the internal space S (see FIG. 3).
  • through holes 31T that penetrate the upper wall 31 in the vertical direction are formed on the front side and the rear side of the tubular portion 32, respectively.
  • the through hole 31T is formed in the central portion of the upper wall 31 in the left-right direction.
  • FIG. 2 shows only the through hole 31T formed on the rear side of the tubular portion 32, but the through hole 31T is also formed on the front side of the tubular portion 32.
  • the upper rear side upper protrusion 25d and the upper front side upper protrusion 25e of the shield member 25 are fitted into the through hole 31T.
  • the internal conductor 19, that is, the right movable terminal 20A, the right fixed terminal 22A, the left movable terminal 20B, and the left fixed terminal 22B are all plate-shaped members made of metal. Each of the inner conductors 19 is formed by punching a flat metal plate and performing various processing such as bending.
  • the inner conductor 19 is housed in the main body 12. As shown in FIG. 3, the main portions of the right movable terminal 20A and the right fixed terminal 22A are arranged in the internal space S. Similarly, the main portions of the left movable terminal 20B and the left fixed terminal 22B are arranged in the internal space S.
  • the set of the right fixed terminal 22A and the right movable terminal 20A (hereinafter referred to as “right terminal set 23A”) is provided corresponding to the hole 34A.
  • the central axis CA of the hole 34A intersects the right movable terminal 20A.
  • the right movable terminal 20A is in contact with the right fixed terminal 22A by its own elastic force, as will be described later.
  • the set of the left fixed terminal 22B and the left movable terminal 20B (hereinafter referred to as "left terminal set 23B”) is provided corresponding to the hole 34B.
  • the central axis CB of the hole 34B intersects the left movable terminal 20B, and the left movable terminal 20B is in contact with the left fixed terminal 22B as described later.
  • the right fixed terminal 22A includes a base portion 22Aa and a contact portion 22Ab.
  • the base portion 22Aa is sandwiched between the trapezoidal portion 58a of the lower case 18 and the right front plate portion 36a of the upper case 16.
  • the right fixed terminal 22A is fixed to the main body 12.
  • the portion on the front side of the base portion 22Aa front end portion 22AF
  • the contact portion 22Ab is a portion connected to the rear side of the base portion 22Aa and extends in the left-right direction.
  • the contact portion 22Ab projects from the base portion 22Aa into the internal space S of the main body 12. Since the trapezoidal portion 58a protrudes from the upper surface of the lower case 18, the contact portion 22Ab is separated from the upper surface of the lower case 18.
  • the right movable terminal 20A is a plate-shaped member having springiness (elasticity).
  • the right movable terminal 20A includes a base portion 20Aa and a leaf spring portion 20Ab.
  • the base portion 20Aa is a portion near the rear end portion 20AR of the right movable terminal 20A.
  • the base portion 20Aa is sandwiched between the upper surface of the lower case 18 and the rear plate portion 35a of the upper case 16. As a result, the right movable terminal 20A is fixed to the main body 12.
  • the portion on the rear end side (rear end portion 20AR) from the base portion 20Aa is exposed to the outside of the main body 12.
  • the leaf spring portion 20Ab protrudes from the base portion 20Aa into the internal space S of the main body 12 and extends in the front-rear direction toward the contact portion 22Ab of the right fixed terminal 22A.
  • the right movable terminal 20A is slightly bent so that the leaf spring portion 20Ab is separated from the upper surface of the lower case 18.
  • the leaf spring portion 20Ab is substantially parallel to the upper surface of the lower case 18.
  • the front end of the leaf spring portion 20Ab is bifurcated to form a contact portion 20Ac of the right movable terminal 20A.
  • the contact portion 20Ac overlaps the contact portion 22Ab of the right fixed terminal 22A.
  • the contact portion 20Ac is in contact with the lower surface of the contact portion 22Ab of the right fixed terminal 22A from below due to the upward elastic force of the leaf spring portion 20Ab.
  • the leaf spring portion 20Ab has a sufficiently large elastic force because it extends in the front-rear direction, which is the direction from the base portion 20Aa toward the contact portion 22Ab of the right fixed terminal 22A. As long as the contact portion 20Ac can come into contact with the lower surface of the contact portion 22Ab, the front end portion of the leaf spring portion 20Ab does not have to be bifurcated.
  • the left fixed terminal 22B has the same configuration as the right fixed terminal 22A. Specifically, it is as follows. With reference to FIG. 2, the left fixed terminal 22B includes a base portion 22Ba and a contact portion 22Bb. The base portion 22Ba is sandwiched between the trapezoidal portion 58b of the lower case 18 and the left front plate portion of the upper case 16. As a result, the left fixed terminal 22B is fixed to the main body 12. In the left fixed terminal 22B, the portion on the front side of the base portion 22Ba (front end portion 22BF) is exposed to the outside of the main body 12. The contact portion 22Bb is a portion connected to the rear side of the base portion 22Ba and extends in the left-right direction. The contact portion 22Bb projects from the base portion 22Ba into the internal space S of the main body 12. Since the trapezoidal portion 58b protrudes from the upper surface of the lower case 18, the contact portion 22Bb is separated from the upper surface of the lower case 18.
  • the left movable terminal 20B is a plate-shaped member having a spring property.
  • the left movable terminal 20B includes a base portion 20Ba and a leaf spring portion 20Bb.
  • the base portion 20Ba is a portion near the rear end portion 20BR of the left movable terminal 20B.
  • the base portion 20Ba is sandwiched between the upper surface of the lower case 18 and the rear plate portion 35b of the upper case 16. As a result, the left movable terminal 20B is fixed to the main body 12.
  • the portion on the rear end side (rear end portion 20BR) from the base portion 20Ba is exposed to the outside of the main body 12.
  • the leaf spring portion 20Bb protrudes from the base portion 20Ba into the internal space S of the main body 12 and extends in the front-rear direction toward the contact portion 22Bb of the left fixed terminal 22B.
  • the left movable terminal 20B is slightly bent so that the leaf spring portion 20Bb is separated from the upper surface of the lower case 18.
  • the leaf spring portion 20Bb is substantially parallel to the upper surface of the lower case 18.
  • the front end of the leaf spring portion 20Bb is bifurcated to form a contact portion 20Bc of the left movable terminal 20B.
  • the contact portion 20Bc overlaps under the contact portion 22Bb of the left fixed terminal 22B.
  • the contact portion 20Bc is in contact with the lower surface of the contact portion 22Bb of the left fixed terminal 22B from below due to the upward elastic force of the leaf spring portion 20Bb.
  • the leaf spring portion 20Bb has a sufficiently large elastic force because it extends in the front-rear direction, which is the direction from the base portion 20Ba toward the contact portion 22Bb of the left fixed terminal 22B. As long as the contact portion 20Bc can come into contact with the lower surface of the contact portion 22Bb, the front end portion of the leaf spring portion 20Bb does not have to be bifurcated.
  • the right terminal set 23A and the left terminal set 23B are arranged in parallel. When viewed in the vertical direction, both the right terminal set 23A and the left terminal set 23B extend in the front-rear direction.
  • FIG. 4 is a top view of the coaxial connector 10.
  • the central axis CA of the hole 34A on the right side intersects the leaf spring portion 20Ab at the right movable terminal 20A.
  • the central axis CB of the hole 34B on the left side intersects the leaf spring portion 20Bb at the left movable terminal 20B.
  • FIG. 5 is a cross-sectional view of the coaxial connector 10 along the VV cutting line of FIG.
  • the lower case 18 and the upper case 16 are not shown.
  • the bent portions 33a and 33b cover the right movable terminal 20A and the left movable terminal 20B from both sides in the left-right direction as side walls. More specifically, a portion of the right movable terminal 20A other than the vicinity of the rear end portion 20AR and a portion of the left movable terminal 20B other than the vicinity of the rear end portion 20BR exist between the bent portion 33a and the bent portion 33b.
  • the bent portions 33a and 33b cover the right fixed terminal 22A and the left fixed terminal 22B from both sides in the left-right direction as side walls. More specifically, a portion of the right fixed terminal 22A other than the vicinity of the front end portion 22AF and a portion of the left fixed terminal 22B other than the vicinity of the front end portion 22BF exist between the bent portion 33a and the bent portion 33b. As described above, the bent portions 33a and 33b cover most of the entire right terminal set 23A and the left terminal set 23B from both sides in the left-right direction.
  • the shield member 25 is a plate-shaped member.
  • the thickness direction of the shield member 25 is the left-right direction, that is, the arrangement direction of the right terminal set 23A and the left terminal set 23B.
  • the shield member 25 has a rectangular portion 25a, a lower rear protrusion 25b, a lower front protrusion 25c, an upper rear upper protrusion 25d, and an upper front upper protrusion 25e.
  • the rectangular portion 25a has a rectangular shape extending in the front-rear direction when viewed in the left-right direction.
  • the lower rear protrusion 25b projects rearward from the lower part of the rear end of the rectangular portion 25a.
  • the lower front protrusion 25c projects forward from the lower part of the front end of the rectangular portion 25a.
  • the upper rear upper protruding portion 25d projects upward from the rear portion of the upper end of the rectangular portion 25a.
  • the upper front side upward projecting portion 25e projects upward from the front portion of the upper end of the rectangular portion 25a.
  • the shield member 25 is fitted in the slit 53a and the groove 53b.
  • the lower portion of the shield member 25 has a shape complementary to the slit 53a and the groove 53b. Therefore, the lower portion of the shield member 25 is fitted into the slit 53a and the groove 53b to fill the inside of the slit 53a and the groove 53b.
  • the lower rear protrusion 25b and the lower front protrusion 25c are fitted in the groove 53b.
  • the upper portion of the shield member 25 projects upward from the upper surface of the lower case 18.
  • the rectangular portion 25a extends in the vertical direction of the internal space S.
  • the shield member 25 is arranged between the right terminal set 23A and the left terminal set 23B.
  • the shield member 25 is separated from the right terminal set 23A and the left terminal set 23B. Seen in the vertical direction, the shield member 25 does not overlap with any of the holes 34A and 34B.
  • the shield member 25 is arranged between the outer edge of the hole 34A and the outer edge of the hole 34B.
  • the upper rear upper protrusion 25d and the upper front upper protrusion 25e are fitted into a through hole 31T formed in the upper wall 31 of the external terminal 14. As a result, the external terminal 14 and the shield member 25 are electrically connected.
  • FIG. 6 is a bottom view of the coaxial connector 10.
  • the shield member 25 and the bent portions 33a and 33b of the external terminal 14 are exposed on the bottom surface of the coaxial connector 10.
  • the lower surfaces of the shield member 25 and the bent portions 33a and 33b of the external terminal 14 are substantially flush with the lower surface of the lower case 18.
  • the rear end 20AR of the right movable terminal 20A and the rear end 22BR of the left movable terminal 20B project rearward.
  • the lower surfaces of the front end portions 22AF and 22BF and the lower surfaces of the rear end portions 20AR and 20BR are substantially flush with the lower surface of the lower case 18.
  • the coaxial connector 10 is used by being mounted on a circuit board.
  • the shield member 25, the bent portions 33a and 33b of the external terminal 14, the front end portions 22AF and 22BF, and the rear end portions 20AR and 20BR are connected to the wiring of the circuit board.
  • the bent portions 33a and 33b of the shield member 25 and the external terminal 14 are connected to, for example, a ground conductor on a circuit board.
  • the front end portions 22AF and 22BF and the rear end portions 20AR and 20BR are connected to, for example, the signal wiring of the circuit board.
  • the shield member 25 and the bent portions 33a and 33b of the external terminal 14 can be set to the same potential (ground potential) and can be set to a reference potential with respect to the potential of each signal wiring.
  • the coaxial connector 10 is assembled, for example, as follows. At the time of starting the assembly, the bent portions 33a and 33b of the external terminal 14 are not bent and extend in the same plane as the upper wall 31.
  • the lower case 18 in which the shield member 25 is fitted in the slit 53a and the groove 53b is prepared.
  • the shield member 25 and the lower case 18 in which the slit 53a and the groove 53b are formed may be separately prepared, and the shield member 25 may be fitted into the slit 53a and the groove 53b.
  • the lower case 18 in which the shield member 25 is fitted into the slit 53a and the groove 53b may be directly formed by in-mold molding.
  • the right fixed terminal 22A and the left fixed terminal 22B are attached to the upper case 16.
  • the base portions 22Aa and 22Ba are aligned with the right front plate portion 36a and the left front plate portion, respectively.
  • the right movable terminal 20A and the left movable terminal 20B are attached to the upper case 16.
  • the base portions 20Aa and 20Ba and the rear plate portions 35a and 35b are aligned respectively.
  • the contact portion 20Ac of the right movable terminal 20A is below the contact portion 22Ab of the right fixed terminal 22A
  • the contact portion 20Bc of the left movable terminal 20B is below the contact portion 22Bb of the left fixed terminal 22B.
  • the lower part of the contact portions 22Ab and 22Bb means the side opposite to the upper case 16 with respect to the contact portions 22Ab and 22Bb.
  • the right fixed terminal 22A, the left fixed terminal 22B, the right movable terminal 20A, and the left movable terminal 20B may be attached to the upper case 16 with the lower surface of the lower case 18 facing upward (opposite to the direction of gravity). ..
  • the external terminal 14 attaches the external terminal 14 to the upper case 16 from above.
  • the upper case 16 most of the parts other than the rear plate portions 35a and 35b, the right front plate portion 36a and the left front plate portion are accommodated in the tubular portion 32.
  • the upper case 16 and the external terminal 14 are stacked on the lower case 18.
  • the trapezoidal portion 58a on the right side is brought into contact with the base portion 22Aa of the right fixed terminal 22A.
  • the left trapezoidal portion 58b is brought into contact with the base portion 22Ba of the left fixed terminal 22B.
  • the base 20Aa of the right movable terminal 20A and the base 20Ba of the left movable terminal 20B are brought into contact with the upper surface of the lower case 18.
  • the upper rear upper protrusion 25d and the upper front upper protrusion 25e of the shield member 25 are fitted into the two through holes 31T of the external terminal 14, respectively.
  • the coaxial connector 10 is mounted on a circuit board. At the time of manufacturing or maintenance of equipment equipped with this circuit board, the electrical characteristics of the circuit included in the circuit board are inspected. A dedicated measuring instrument is used for this inspection.
  • the circuit will be described as being a transmission / reception circuit. Separate transmission / reception circuits are connected to the right movable terminal 20A and the left movable terminal 20B of the coaxial connector 10. Further, the right fixed terminal 22A and the left fixed terminal 22B of the coaxial connector 10 are connected to the same or different antennas.
  • FIG. 7 is a vertical cross-sectional view of the coaxial connector, and is a diagram showing a state when inspecting the electrical characteristics of the circuit connected to the coaxial connector 10.
  • FIG. 7 shows a cross section along the front-rear direction through the central axis CA of the hole 34A on the right side. Therefore, the left hole 34B, the left fixed terminal 22B, and the left movable terminal 20B are not shown in this cross section.
  • a method of measuring the electrical characteristics of the transmission / reception circuit connected to the right movable terminal 20A will be described. The same procedure is used when measuring the electrical characteristics of the transmission / reception circuit connected to the left movable terminal 20B.
  • the probe 130 of the other coaxial connector connected to the measuring instrument is inserted into the hole 34A of the coaxial connector 10 from above.
  • the outer conductor of the mating coaxial connector is not shown.
  • one of the two probes is inserted into the hole 34A on the right side, and at the same time, the other probe is inserted into the hole 34B on the left side.
  • the probe may be inserted into only one of the hole 34A on the right side and the hole 34B on the left side.
  • the probe 130 of the other coaxial connector enters the coaxial connector 10 from above the leaf spring portion 20Ab of the right movable terminal 20A toward the leaf spring portion 20Ab. Then, the probe 130 comes into contact with the leaf spring portion 20Ab and pushes down the leaf spring portion 20Ab as it is. As a result, as shown in FIG. 7, the contact portion 20Ac, which is the front end portion of the leaf spring portion 20Ab, is separated from the contact portion 22Ab of the right fixed terminal 22A. As a result, the probe 130 is electrically connected to the right movable terminal 20A, while the electrical connection between the right movable terminal 20A and the right fixed terminal 22A is cut off.
  • the outer conductor of the mating coaxial connector is fitted to the tubular portion 32 of the outer terminal 14, and the outer conductor is electrically connected to the outer terminal 14.
  • the measuring instrument is connected to the transmission / reception circuit via the probe 130 and the right movable terminal 20A.
  • the electrical characteristics of the transmission / reception circuit are inspected.
  • the probe 130 and the right movable terminal 20A serve as a signal path.
  • the vertical position of the contact portion 20Ac returns to the upper side due to the upward elastic force of the leaf spring portion 20Ab (see FIG. 3).
  • the contact portion 20Ac of the right movable terminal 20A comes into contact with the contact portion 22Ab of the right fixed terminal 22A.
  • the right movable terminal 20A is electrically connected to the right fixed terminal 22A again, while the electrical connection between the probe 130 and the right movable terminal 20A is cut off.
  • the transmission / reception circuit is connected to the antenna via the right movable terminal 20A and the right fixed terminal 22A. That is, the communication device is ready for use.
  • the right movable terminal 20A and the right fixed terminal 22A serve as signal paths.
  • FIG. 8 is a schematic view of the right movable terminal 20A, the right fixed terminal 22A, and the shield member 25 when viewed in the left-right direction.
  • the leaf spring portion 20Ab in a normal state that is, in a state of being connected to the right fixed terminal 22A is shown by a solid line, and the leaf spring portion in a state when the electrical characteristics of the circuit connected to the coaxial connector 10 are inspected.
  • 20Ab is indicated by a two-dot chain line.
  • the existing region of the shield member 25 when viewed in the left-right direction, that is, in the arrangement direction of the right terminal set 23A and the left terminal set 23B, the existing region of the shield member 25 is the moving region of the leaf spring portion 20Ab of the right movable terminal 20A. Including the whole of.
  • the moving region of the leaf spring portion 20Bb of the left movable terminal 20B is substantially the same as the moving region of the leaf spring portion 20Ab of the right movable terminal 20A. Therefore, when viewed in the left-right direction, the existing region of the shield member 25 includes the entire moving region of the leaf spring portion 20Bb of the left movable terminal 20B.
  • a shield member 25 exists between the right terminal set 23A and the left terminal set 23B. Since the shield member 25 has conductivity, it blocks electromagnetic waves. Therefore, even if an electromagnetic wave is radiated from the signal path by the right terminal set 23A, the electromagnetic wave can be blocked by the shield member 25. As a result, noise is less likely to occur in the signal path of the left terminal set 23B. Further, even if an electromagnetic wave is radiated from the signal path by the left terminal set 23B, the electromagnetic wave can be blocked by the shield member 25. As a result, noise is less likely to occur in the signal path of the right terminal set 23A. Therefore, the isolation characteristic between the right terminal set 23A and the left terminal set 23B is high.
  • the existing region of the shield member 25 is the entire moving region of the leaf spring portion 20Ab of the right movable terminal 20A and the movement of the leaf spring portion 20Bb of the left movable terminal 20B. Includes the entire area. Therefore, the shield member 25 exists between the leaf spring portion 20Ab and the leaf spring portion 20Bb regardless of the position of each of the leaf spring portions 20Ab and 20Bb in the moving region. Therefore, the electromagnetic wave from the signal path by the right terminal set 23A toward the left terminal set 23B and the electromagnetic wave from the signal path by the left terminal set 23B toward the right terminal set 23A are transmitted during normal use and inspection. It can be blocked by the shield member 25. Therefore, the isolation characteristic between the right terminal set 23A and the left terminal set 23B is improved.
  • the leaf spring portion 20Ab of the right movable terminal 20A includes a contact portion 20Ac which is a contact portion of the right fixed terminal 22A with the contact portion 22Ab, and a contact portion with the tip of the probe 130.
  • the contact portion 20Ac of the leaf spring portion 20Ab of the right movable terminal 20A contacts the contact portion 22Ab of the right fixed terminal 22A, and the probe 130 does not contact the leaf spring portion 20Ab of the right movable terminal 20A. That is, during normal use, the right movable terminal 20A comes into contact with the right fixed terminal 22A.
  • the probe 130 comes into contact with the leaf spring portion 20Ab of the right movable terminal 20A, and the contact portion 20Ac of the leaf spring portion 20Ab of the right movable terminal 20A does not come into contact with the contact portion 22Ab of the right fixed terminal 22A. That is, at the time of inspection, the probe 130 comes into contact with the right movable terminal 20A.
  • the existing region of the shield member 25 includes the entire moving region of the leaf spring portion 20Ab of the right movable terminal 20A.
  • the shield member 25 it is also possible to provide a shield member smaller than the shield member 25 (hereinafter, referred to as “miniaturized shield member”).
  • miniaturized shield member it is preferable that the size and arrangement of the miniaturized shield member are designed so as to efficiently block at least the above-mentioned strong electromagnetic waves.
  • the region where the miniaturized shield member exists preferably includes at least the following (a) in the leaf spring portion 20Ab, and more preferably includes the following (b).
  • the coaxial connector 10 is viewed in the left-right direction, and the region where the miniaturized shield member exists includes the right movable terminal 20A and the right fixed terminal 22A in normal use. It suffices to include the contact portion (contact portion 20Ac of the leaf spring portion 20Ab of the right movable terminal 20A) and the contact portion between the right movable terminal 20A and the probe 130 at the time of inspection, and the portion between these contact portions. It is not necessary to include.
  • the shield member 25 including the entire moving region of the leaf spring portion 20Ab when the coaxial connector 10 is viewed in the left-right direction as shown in FIG. 8 has improved isolation characteristics. It is preferable to make it. The same can be said for the left movable terminal 20B regarding the region where the miniaturized shield member exists.
  • the following effects can be obtained by having the bent portions 33a and 33b of the external terminal 14 cover most of the right terminal set 23A and the left terminal set 23B from both sides in the left-right direction.
  • a bent portion 33a exists on the right side of the right terminal set 23A.
  • a bent portion 33b exists on the left side of the left terminal set 23B.
  • Above the right terminal set 23A and the left terminal set 23B there is an upper wall 31 of the external terminal 14. Therefore, electromagnetic waves directed from the outside of the coaxial connector 10 toward the right terminal set 23A and the left terminal set 23B are blocked by the upper wall 31 of the external terminal 14 and the bent portions 33a and 33b.
  • the electromagnetic wave from the outside of the coaxial connector 10 referred to here is, for example, an electromagnetic wave radiated from wiring or the like arranged outside the coaxial connector 10. Therefore, the isolation characteristics of the right terminal set 23A and the left terminal set 23B are further improved.
  • the leaf spring portion 20Ab of the right movable terminal 20A and the leaf spring portion 20Bb of the left movable terminal 20B extend in the front-rear direction. That is, the right movable terminal 20A and the left movable terminal 20B exist in a wide range in the front-rear direction. Therefore, in the coaxial connector 10 mounted on the circuit board, the right movable terminal 20A and the left movable terminal 20B are likely to receive electromagnetic waves from the outside of the coaxial connector 10 from the left and right directions. Therefore, if a bent portion is provided at either the left-right end or the front-back end of the external terminal 14, it is better to provide the bent portion at the left-right end of the right terminal set 23A and the left terminal set. It is easy to improve the isolation characteristics of 23B.
  • the mating coaxial connector shall include a first probe and a second probe.
  • the first probe comes into contact with the leaf spring portion 20Ab of the right movable terminal 20A without interfering with the shield member 25, and pushes down the leaf spring portion 20Ab.
  • the second probe comes into contact with the leaf spring portion 20Bb of the left movable terminal 20B without interfering with the shield member 25, and pushes down the leaf spring portion 20Bb.
  • the first probe and the second probe do not come into contact with the shield member 25, respectively.
  • the short circuit between the first probe and the shield member 25 can be suppressed, and the short circuit between the second probe and the shield member 25 can be suppressed. Therefore, the reliability of the measurement by the first probe and the second probe is increased.
  • the shield member 25 does not overlap with the portion having the largest opening cross-sectional area in each of the holes 34A and 34B.
  • the shield member 25 does not overlap with the portion of the holes 34A and 34B having the smallest opening cross-sectional area when viewed in the vertical direction. It may overlap with the portion having the largest cross-sectional area.
  • the thickness direction of the shield member 25 coincides with the arrangement direction of the right terminal set 23A and the left terminal set 23B.
  • the shield member 25 is held in the main body 12 including the lower case 18 by being fitted into the slit 53a and the groove 53b of the lower case 18. Therefore, the position of the shield member 25 with respect to the main body 12 is stable. Then, the shield member 25 does not inadvertently come into contact with the right fixed terminal 22A, the right movable terminal 20A, the left fixed terminal 22B, and the left movable terminal 20B.
  • the shield member 25 can be electrically connected to the external terminal 14 at a short distance. If the external terminal 14 is connected to the outer conductor of the counterpart coaxial connector for inspection, the external terminal 14 can be set to the ground potential, and the shield member 25 can be set to the same ground potential as the external terminal 14. The ground potential shield member 25 further improves the isolation characteristics of the right terminal set 23A and the left terminal set 23B. Moreover, the position of the shield member 25 with respect to the external terminal 14 is stable.
  • the following effects can be obtained by exposing the shield member 25 to the lower surface of the lower case 18.
  • the exposed portion of the shield member 25 can be connected to the ground conductor on the circuit board.
  • the shield member 25 can be set to the ground potential.
  • the shield member 25 having a ground potential further improves the isolation characteristics of the right terminal set 23A and the left terminal set 23B.
  • FIG. 9 is an exploded perspective view of the coaxial connector 10A according to a modified example of the coaxial connector 10.
  • FIG. 10 is a cross-sectional view of the coaxial connector 10A, and shows a cross section corresponding to the cross section of FIG.
  • the coaxial connector 10A includes a shield member 25A instead of the shield member 25 provided in the coaxial connector 10.
  • the shield member 25A has a shorter vertical length than the shield member 25.
  • the upper end of the shield member 25A is flat. That is, the shield member 25A does not include the upper rear side upper protrusion 25d and the upper front side upper protrusion 25e as shown in FIG.
  • the through hole 31T as shown in FIG. 2 is not formed on the upper wall 31 of the external terminal 14.
  • the shield member 25A is separated from the upper wall 31 of the external terminal 14. Therefore, the shield member 25A is not electrically connected to the external terminal 14.
  • Such a structure is adopted, for example, when an extending portion of the upper case 16 exists between the shield member 25A and the external terminal 14, and it is difficult to bring the shield member 25A into contact with the external terminal 14. can do. Even in this case, if the shield member 25A is exposed on the lower surface of the lower case 18, the exposed portion of the shield member 25 can be connected to the ground conductor on the circuit board. As a result, the shield member 25A can be set to the ground potential.
  • FIG. 11 is a schematic diagram of a coaxial connector (hereinafter referred to as “virtual coaxial connector”) used for numerical simulation.
  • FIG. 11 shows a perspective view of the conductive member.
  • the conductive member includes an external terminal 14A, a right terminal set 23C, and a left terminal set 23D.
  • members other than the conductive members for example, members having the same insulating properties as the lower case 18 and the upper case 16 shown in FIG. 2 were omitted.
  • the external terminal 14A provided in the virtual coaxial connector was provided with six bent portions 33g, 33h, 33i, 33j, 33k, 33l.
  • the bent portions 33g, 33h, and 33i are provided on the left, center, and right, respectively, in the front portion of the external terminal 14A.
  • the bent portions 33j, 33k, and 33l were provided on the left, center, and right, respectively, at the rear portion of the external terminal 14A.
  • the bent portions 33g and 33j extended from the left end of the upper wall 31A.
  • the bent portions 33i and 33l extended from the right end of the upper wall 31A.
  • the bent portion 33h extends from the front end of the upper wall 31A.
  • the bent portion 33k extended from the rear end of the upper wall 31A.
  • the tip portions of the bent portions 33g, 33h, 33i, 33j, 33k, and 33l were bent inward of the external terminal 14 when viewed in the vertical direction.
  • the shield member 25B was provided only in the portion corresponding to the bent portion 33k in the front-rear direction. That is, the shield member 25B is provided only at the rear portion of the external terminal 14A, and is not provided at the front portion of the external terminal 14A. The shield member 25B is provided between the upper wall 31A and the lower end portion of the bent portion 33k in the vertical direction.
  • Both the right terminal set 23C and the left terminal set 23D are continuous strip-shaped conductors having a constant width and thickness. That is, in this simulation, the fixed terminal and the movable terminal are integrated in each of the right terminal set 23C and the left terminal set 23D.
  • the right terminal set 23C and the left terminal set 23D were arranged in parallel with the upper wall 31A. In the left-right direction, the right terminal set 23C was inserted between the side walls of the bent portions 33i and 33l and the bent portions 33h and 33k. In the left-right direction, the left terminal set 23D was inserted between the side walls of the bent portions 33g and 33j and the bent portions 33h and 33k. In the vertical direction, the right terminal set 23C and the left terminal set 23D were arranged at the center of the upper surface of the upper wall 31A and the lower surfaces of the bent portions 33g, 33h, 33i, 33j, 33k, 33l.
  • FIG. 12 is a diagram showing the results of numerical simulation.
  • FIG. 12 shows the relationship between the frequency of the signal flowing through the left terminal set 23D and S21 (S parameter).
  • S parameter S parameter
  • the solid line shows the result when the shield member 25B is installed
  • the dotted line shows the result when the shield member is not installed. It was found that about 3 dB and S21 were reduced when the shield member 25B was provided as compared with the case where the shield member 25B was not provided. That is, by providing the shield member 25B, the isolation characteristic between the right terminal set 23C and the left terminal set 23D could be enhanced.
  • a groove-shaped recess may be formed on the upper surface of the lower case 18 (the bottom surface of the internal space S). This recess does not penetrate the lower case 18 in the vertical direction.
  • the shield members 25 and 25A are held by the main body 12 including the lower case 18 by fitting into the groove of the lower case 18. Therefore, the positions of the shield members 25 and 25A with respect to the main body 12 are stable.
  • the shield member can be provided in any area between the right terminal set 23A and the left terminal set 23B.
  • the region where the shield member 25 exists is the leaf spring portion 20Ab of the right movable terminal 20A and the leaf spring portion of the left movable terminal 20B. Only a part of the moving area of 20Bb may be included. As long as the isolation characteristic between the right terminal set 23A and the left terminal set 23B can be enhanced, the size, shape, and arrangement of the shield member can be appropriately set.
  • the shield member may be provided only between the contact portion 20Ac and the contact portion 20Bc and in the vicinity thereof.
  • the external terminal 14 has one tubular portion 32 for the two holes 34A and 34B.
  • the external terminal 14 may have one tubular portion for each of the holes 34A and 34B.
  • the coaxial connector may have three or more sets of fixed terminals and movable terminals.
  • the coaxial connectors 10 and 10A may be provided with a further set of fixed terminals and movable terminals (hereinafter referred to as “third terminal set”) on the right side of the right terminal set 23A.
  • third terminal set a further set of fixed terminals and movable terminals
  • a third hole similar to the holes 34A and 34B is provided corresponding to the third terminal set. Looking at the coaxial connector in the vertical direction, it is preferable that none of the shield members overlaps with any of the holes 34A, 34B and the third hole. As a result, the same effect as described above can be obtained.
  • the present invention is useful for a coaxial connector with a switch having at least two sets of fixed terminals and movable terminals.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

Le présent connecteur coaxial (10) est pourvu : d'un corps principal (12) ; de la paire d'une première borne fixe (22A) et d'une première borne mobile (20A) ; de la paire d'une seconde borne fixe (22B) et d'une seconde borne mobile (20B) ; et d'un élément de protection (25). La paire de la première borne fixe (22A) et de la première borne mobile (20A), et la paire de la seconde borne fixe (22B) et de la seconde borne mobile (20B) sont logées dans le corps principal (12). L'élément de protection (25) est positionné entre la paire de la première borne fixe (22A) et de la première borne mobile (20A) et la paire de la seconde borne fixe (22B) et de la seconde borne mobile (20B), et est conductrice.
PCT/JP2021/025735 2020-08-20 2021-07-08 Connecteur coaxial Ceased WO2022038916A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202190000699.5U CN219677724U (zh) 2020-08-20 2021-07-08 带有开关的同轴连接器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020139489 2020-08-20
JP2020-139489 2020-08-20

Publications (1)

Publication Number Publication Date
WO2022038916A1 true WO2022038916A1 (fr) 2022-02-24

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WO2014013834A1 (fr) * 2012-07-18 2014-01-23 株式会社村田製作所 Connecteur coaxial
CN106816786A (zh) * 2015-11-27 2017-06-09 富士康(昆山)电脑接插件有限公司 射频连接器组件
JP2019121439A (ja) * 2017-12-28 2019-07-22 Smk株式会社 コネクタ
CN110932025A (zh) * 2019-12-14 2020-03-27 昆山雷匠通信科技有限公司 同轴开关
CN110970775A (zh) * 2019-12-14 2020-04-07 昆山雷匠通信科技有限公司 同轴开关
CN110994298A (zh) * 2019-12-14 2020-04-10 昆山雷匠通信科技有限公司 同轴开关

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WO2014013834A1 (fr) * 2012-07-18 2014-01-23 株式会社村田製作所 Connecteur coaxial
CN106816786A (zh) * 2015-11-27 2017-06-09 富士康(昆山)电脑接插件有限公司 射频连接器组件
JP2019121439A (ja) * 2017-12-28 2019-07-22 Smk株式会社 コネクタ
CN110932025A (zh) * 2019-12-14 2020-03-27 昆山雷匠通信科技有限公司 同轴开关
CN110970775A (zh) * 2019-12-14 2020-04-07 昆山雷匠通信科技有限公司 同轴开关
CN110994298A (zh) * 2019-12-14 2020-04-10 昆山雷匠通信科技有限公司 同轴开关

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