electrical connectors

Abstract

The coaxial connector device of the present invention comprises a signal contact component, a signal contact component, a ground contact component to which a ground potential is applied, and a conductive component having a rear ground connection portion connected to the ground contact component and a front ground connection portion connected to a ground contact portion of a mating connector device, wherein the front ground connection portion overlaps with at least a portion of a signal line consisting of a center conductor of a coaxial cable and the signal contact component, and at least a portion of a signal line consisting of the center conductor of the coaxial cable and the signal contact component, when viewed from the mating direction with the mating connector device.

Description

Technical Field

[0001] The present invention relates to an electric connector. Background Art

[0002] A connector device is known that electrically connects a coaxial cable to a circuit on a wiring board by fitting a plug connector attached to a terminal portion of the coaxial cable with a receptacle connector attached to a wiring board (see, for example, Patent Document 1).

[0003] [Background Art Literature]

[0004] [Patent Document]

[0005] [Patent Document 1] Japanese Patent No. 6269558 Summary of the Invention

[0006] [Problems to be solved by the invention]

[0007] Here, in the connector device described above, if the signal inside the connector is transmitted to the surrounding area of the connector device, there is a concern that it may affect surrounding external products. Therefore, in the connector device described above, it is crucial to prevent the signal inside the connector from being transmitted to the surrounding area (improving noise resistance).

[0008] The present invention has been made in view of the above-mentioned actual situation, and an object of the present invention is to provide an electrical connector capable of improving noise resistance.

[0009] [Technical means to solve the problem]

[0010] An electrical connector according to one aspect of the present invention comprises: a first signal contact component connected to the center conductor of a first coaxial cable and connected to a first signal contact portion of a mating connector mounted on a circuit board; a second signal contact component connected to the center conductor of the second coaxial cable and connected to a second signal contact portion of the mating connector; a ground contact component to which a ground potential is applied, the ground contact component comprising an annular engaging portion engaged and connected to the ground contact portion of the mating connector, and a shell portion bendably extending from the annular engaging portion and connected to outer conductors of the first coaxial cable and the second coaxial cable; and a conductive component comprising a first ground connecting portion connected to the ground contact component and a second ground connecting portion connected to the ground contact portion of the mating connector; the second ground connecting portion of the conductive component, when viewed from the mating direction with the mating connector, overlaps with at least a portion of a first signal line formed by the center conductor of the first coaxial cable and the first signal contact component, and at least a portion of a second signal line formed by the center conductor of the second coaxial cable and the second signal contact component.

[0011] An electrical connector according to one aspect of the present invention includes a first signal contact member connected to the center conductor of a first coaxial cable, a second signal contact member connected to the center conductor of a second coaxial cable, a ground contact member to which a ground potential is applied, and a conductive member. The conductive member has a first ground connection portion connected to the ground contact member, and a second ground connection portion connected to a ground contact portion of a mating connector. Furthermore, in this electrical connector, the second ground connection portion overlaps at least a portion of a first signal line formed by the center conductor of the first coaxial cable and the first signal contact member, and at least a portion of a second signal line formed by the center conductor of the second coaxial cable and the second signal contact member, when viewed from the mating direction. The overlap of the second ground connection portion with at least a portion of the first and second signal lines prevents the signals of the first and second signal lines from being transmitted to the outside (around the connector assembly formed by the electrical connector and the mating connector). This prevents the signals of the first and second signal lines from becoming noise and affecting surrounding external products, thereby improving the EMI (ElectroMagneticInterference) characteristics of the electrical connector and enhancing noise resistance.

[0012] The outer shell of the ground contact member may include a barrel portion that securely holds the first and second coaxial cables, with the conductive member connected to the barrel portion. By connecting (contacting) the barrel portion holding the coaxial cables constituting the signal line with the conductive member in this manner, the contact point can be reliably maintained at ground potential, and the signal line and the conductive member (specifically, the second ground connection portion) can be precisely aligned.

[0013] The ground contact portion of the mating connector may include a first portion that engages and connects to the annular engagement portion of the ground contact member, and the second ground connection portion may include a pair of first connection portions connected to the first portion, one of the pair of first connection portions overlapping at least a portion of the first signal line when viewed from the engagement direction, and the other of the pair of first connection portions overlapping at least a portion of the second signal line when viewed from the engagement direction. By connecting the pair of first connection portions of the second ground connection portion to the engagement-related portion (the first portion) of the ground contact portion of the mating connector in this manner, the contact portion can be reliably maintained at a ground potential when mated with the mating connector. Furthermore, by having one of the pair of first connection portions overlapping at least a portion of the first signal line and the other of the pair of first connection portions overlapping at least a portion of the second signal line, the signals of the first and second signal lines can be reliably prevented from being transmitted to the outside (around the connector assembly consisting of the electrical connector and the mating connector).

[0014] The outer shell of the ground contact component can include a cylindrical portion that securely holds the first and second coaxial cables, with the pair of first connecting portions overlapping the cylindrical portion in the direction in which the first and second signal contact components are arranged when viewed from the mating direction. By overlapping the pair of first connecting portions with the cylindrical portion holding the coaxial cables in this manner, the pair of first connecting portions can be precisely aligned to overlap the signal lines (specifically, the center conductors of the coaxial cables). This effectively prevents signals from the first and second signal lines from being transmitted to the outside (around the connector assembly comprising the electrical connector and the mating connector).

[0015] An opening may be formed in the annular fitting portion of the ground contact component, and the pair of first connecting portions may be disposed in the opening. By providing the pair of first connecting portions, which serve as conductive members, in the opening formed, for example, during manufacturing, the pair of first connecting portions can partially block the opening, thereby effectively suppressing leakage of signals (high-frequency signals) from the signal line through the opening.

[0016] The mating connector's ground contact may include a second portion disposed between the first and second signal contacts, and the second ground connection may include a second connection portion connected to the second portion. By connecting the second connection portion to the second portion of the mating connector's ground contact disposed between the first and second signal contacts, signal transmission between different signal contacts is suppressed. This improves isolation characteristics and enhances noise immunity.

[0017] The outer shell of the ground contact member may include a cylindrical portion that holds the first and second coaxial cables, with the conductive member connected to the cylindrical portion. By connecting (making contact) the cylindrical portion holding the coaxial cables constituting the signal line to the conductive member, the contact point can be reliably maintained at ground potential, and the portion where the signal line and the conductive member (specifically, the second ground connection portion) overlap can be precisely formed.

[0018] The mating connector's ground contact portion may include a first portion that engages and connects to the annular engagement portion of the ground contact component, and the second ground connection portion may include a first connection portion connected to the first portion. The first connection portion is formed continuously in the direction in which the first and second signal contact components are arranged, and overlaps at least a portion of the first signal line and at least a portion of the second signal line when viewed from the mating direction. By connecting the first connection portion of the second ground connection portion to the mating-related portion (the first portion) of the mating contact portion of the mating connector, the contact portion can be reliably maintained at ground potential when mated with the mating connector. Furthermore, by overlapping the first connection portion, which is formed continuously without forming a cutout or gap, with at least a portion of the first signal line and at least a portion of the second signal line, the signals of the first and second signal lines can be more effectively suppressed from being transmitted to the outside (around the connector assembly consisting of the electrical connector and the mating connector).

[0019] An opening can be formed in the annular fitting portion of the ground contact component, and the first connecting portion can be disposed in the opening. By providing the first connecting portion, which serves as a conductive member, in the opening formed, for example, during manufacturing, the first connecting portion can effectively block the opening, thereby effectively suppressing leakage of signals (high-frequency signals) from the signal line through the opening.

[0020] The second connecting portion can be disposed between the first signal contact component and the second signal contact component so as to shield at least a portion of the region between the first and second signal contact components. By disposing the second connecting portion between the signal contact components so as to shield at least a portion of the region between the signal contact components, signal transmission between the signal contact components can be more effectively suppressed. This further improves isolation characteristics.

[0021] The second connecting portion may extend along the extending direction of the first signal contact component and the second signal contact component. By extending the second connecting portion along the extending direction of the first signal contact component and the second signal contact component in this manner, the second connecting portion can effectively shield the area between the signal contact components, thereby further improving the isolation characteristics.

[0022] The second connecting portion can be disposed between the first and second signal contacts so as to cover the entire area between the first and second signal contacts. By completely covering the area between the signal contacts with the second connecting portion, the isolation characteristics can be further improved.

[0023] The area of the second connection portion, as viewed in the direction in which the first and second signal contacts are arranged, can be larger than the area of the first and second signal contacts as viewed in the direction in which they are arranged. By making the second connection portion between the signal contacts larger in this manner, the second connection portion can be more effectively utilized to suppress signal transmission between the signal contacts. This further improves isolation characteristics.

[0024] The second connecting portion can be formed from a different component than the rest of the second ground connecting portion. This increases the freedom in the shape, material, and placement of the second connecting portion. By using a second connecting portion with an appropriately chosen shape, material, and placement, signal transmission between signal contact components can be more effectively suppressed. This further improves isolation characteristics.

[0025] The second connection portion can be connected to a grounding rod electrically connected to the outer conductors of the first and second coaxial cables. Thus, similarly to the center conductors of the first and second coaxial cables adjacent to each other with the outer conductors interposed therebetween, the first and second signal contact components are adjacent to each other with the second connection portion electrically connected to the outer conductors via the grounding rod. Therefore, similarly to adjacent coaxial cables, mutual transmission of signals between the signal contact components can be effectively suppressed.

[0026] [Effects of the Invention]

[0027] According to one aspect of the present invention, noise resistance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a perspective view showing the coaxial connector device according to the present embodiment.

[0029] Figure 2 It is an exploded perspective view showing the coaxial connector device according to the present embodiment.

[0030] Figure 3 This is a perspective view of the conductive member of the coaxial connector device according to the present embodiment as viewed from above.

[0031] Figure 4 This is a perspective view showing a process of attaching the coaxial connector device of this embodiment to one end portion of a coaxial cable.

[0032] Figure 5 This is a perspective view showing a state where the coaxial connector device according to the present embodiment is attached to one end portion of a coaxial cable, as viewed from above.

[0033] Figure 6 It is a bottom view showing a state in which the coaxial connector device according to the present embodiment is attached to one end portion of a coaxial cable.

[0034] Figure 7 It is a perspective view showing a mating connector device connected to the coaxial connector device of the present embodiment.

[0035] Figure 8 This is a plan view showing a state in which the coaxial connector device of the present embodiment is attached to one end portion of a coaxial cable and is then mechanically and electrically connected to a mating connector device.

[0036] Figure 9 Yes Figure 8 Cross-sectional view of the IX-IX line section.

[0037] Figure 10 Yes Figure 8 Cross-sectional view of the XX line section.

[0038] Figure 11 (a) to (d) are diagrams illustrating a method for assembling the coaxial connector device according to the present embodiment.

[0039] Figure 12 (a) to (c) are diagrams for explaining the assembling method of the coaxial connector device of this embodiment, and are diagrams showing the following steps. Figure 11 (d) Diagram of the subsequent steps.

[0040] Figure 13 This is an exploded perspective view showing a coaxial connector device according to another aspect of the present embodiment, as viewed from above.

[0041] Figure 14 Yes Figure 13 An exploded perspective view of a coaxial connector device as viewed from below.

[0042] Figure 15 (a) means Figure 13 The coaxial connector device is mounted on one end of a coaxial cable, and is a perspective view as viewed from below, showing a state before the housing portion holds the cable fixing portion. Figure 15 (b) means Figure 13 1 is a perspective view of a coaxial connector device mounted on one end portion of a coaxial cable, as viewed from below, and showing a state in which the housing portion holds the cable fixing portion.

[0043] Figure 16 Is to express Figure 13 A perspective view of a coaxial connector device connected to a mating connector device.

[0044] Figure 17 Yes Figure 16 Exploded perspective view of a mating connector device as viewed from above.

[0045] Figure 18 (a) means that Figure 13 A top view of a coaxial connector device mounted on one end of a coaxial cable and mechanically and electrically connected to a mating connector device. Figure 18 (b) is along Figure 18 Cross-sectional view of line (b)-(b) of (a), Figure 18 (c) is along Figure 18 Cross-sectional view along line (c)-(c) of (a), Figure 18 (d) is along Figure 18 Cross-sectional view along line (d)-(d) of (a).

[0046] Figure 19 (a) to (d) are correct Figure 13 A diagram illustrating an assembling method of a coaxial connector device.

[0047] Figure 20 (a)(b) is correct Figure 13 The figure explains the assembly method of the coaxial connector device and shows the following Figure 19 (d) Diagram of the subsequent steps. DETAILED DESCRIPTION

[0048] Figure 1 It is a perspective view showing a coaxial connector device 11 (electric connector) according to the present embodiment. Figure 1 The coaxial connector device 11 shown is used to be installed at one end of two coaxial cables. The coaxial cable with the coaxial connector device 11 installed at one end is described below. Figure 4 1 and 12B are shown. Each of coaxial cables 12A and 12B includes a center conductor 13, an inner insulator 14 that closely surrounds center conductor 13, an outer conductor 15 that closely surrounds inner insulator 14, and a sheath insulator 16 that closely surrounds outer conductor 15. In each of coaxial cables 12A and 12B, the sheath insulator 16 is partially removed at one end to which the coaxial connector device 11 is attached, exposing outer conductor 15. Furthermore, both outer conductor 15 and inner insulator 14 are partially removed, exposing center conductor 13.

[0049] Figure 2 1 is an exploded perspective view showing the coaxial connector device 11 of this embodiment. Figure 1 and Figure 2 As shown, the coaxial connector device 11 includes two signal contact members 20A, 20B (a first signal contact member and a second signal contact member), a ground contact member 30, and a conductive member 50 (see FIG. Figure 2 ) as a main component. In addition, the coaxial connector device 11 may also include an insulating housing component 40.

[0050] The insulating housing member 40 is formed of an insulating material such as a synthetic resin. It supports the signal contacts 20A and 20B and the ground contact 30 in a mutually insulated state. The insulating housing member 40 includes a first support portion 41 for supporting the signal contact 20A, a second support portion 42 for supporting the signal contact 20B, and a base portion 43 disposed between the first and second support portions 41, 42 (in the middle of the coaxial connector device 11 in its width direction).

[0051] The first support portion 41 has a cylindrical portion 44 (see Figure 2 )、Central conductor support portion 45 (refer to Figure 2 ), and a flat plate portion 46. The cylindrical portion 44 holds the signal contact component 20A. The center conductor support portion 45 extends from the cylindrical portion 44 and supports the center conductor 13 of the coaxial cable 12A connected to the signal contact component 20A. The flat plate portion 46 extends along the inner surface of the bottom plate 34a (described below) of the shell portion 34 of the ground contact component 30. The flat plate portion 46 is in a state where the shell portion 34 is in a bent position ( Figure 5 and Figure 6 The second support portion 42 contacts the first portion 20x (described below) of the signal contact 20A in a state in which the first portion 20x is pressed, thereby bending the first portion 20x. The structure of the second support portion 42 is the same as that of the first support portion 41 (the signal contact 20A and coaxial cable 12A are replaced with the signal contact 20B and coaxial cable 12B, and the cylindrical portion 44, the center conductor support portion 45, and the flat plate portion 46 are the same).

[0052] The ground contact member 30 is formed of a resilient conductive material. A ground potential is applied to the ground contact member 30 and the ground contact member 30 is electrically connected to the outer conductors 15 of the coaxial cables 12A and 12B. The ground contact member 30 includes an annular fitting portion 31, a first cable support portion 32 for supporting the coaxial cable 12A, a second cable support portion 33 for supporting the coaxial cable 12B, and an outer shell portion 34.

[0053] The annular fitting portion 31 partially surrounds a portion of the insulating housing member 40 (specifically, a portion of the cylindrical portion 44 including the first support portion 41 and the second support portion 42) and is fitted and connected to the mating connector device 100 (see Figure 7 ) of the annular fitting portion 102 of the ground contact portion 101. An opening OP1 (see FIG. 1 ) is formed in the annular fitting portion 31 and is sandwiched between a pair of opposing end portions 31a, 31a. Figure 6 ).

[0054] The first cable support portion 32 has an arm portion 35, a loading portion 36, and a wall portion 37. The arm portion 35 extends from one end portion 31a of a pair of end portions 31a of the annular fitting portion 31 along the center conductor support portion 45 of the insulating shell member 40. The loading portion 36 extends in the horizontal direction (specifically, the width direction of the coaxial connector device 11) so as to be continuous with the lower end of the arm portion 35 and to load the center conductor support portion 45 and the coaxial cable 12A. The wall portion 37 is provided to be continuous with the loading portion 36 and to be opposite to the arm portion 35. A convex portion 36a is provided on the loading surface of the coaxial cable 12A in the loading portion 36. The convex portion 36a is a protruding portion that contacts the outer conductor 15 of the coaxial cable 12A (see Figure 10 The coaxial cable 12A is positioned by being fixed (supported) in the area defined by the arm portion 35, the mounting portion 36, and the wall portion 37. The second cable support portion 33 has the same configuration as the first cable support portion 32 (except that the one end portion 31a and the coaxial cable 12A are replaced with the other end portion 31a and the coaxial cable 12B, and the arm portion 35, the mounting portion 36, the protrusion 36a, and the wall portion 37 are the same).

[0055] The outer shell 34 is a portion that extends bendably from one end of the annular fitting portion 31 and is connected to the outer conductor 15 of the coaxial cables 12A and 12B when bent. The outer shell 34 is selectively positioned in an upright position relative to the annular fitting portion 31 and in a bent position relative to the annular fitting portion 31. Figure 1 、 Figure 2 and Figure 4 In the upright position, as described below Figure 5 and Figure 6 In the description of the housing portion 34, except for reference to Figure 1 and Figure 2 In addition, refer to Figure 5 and Figure 6 .

[0056] The housing 34 includes a bottom plate 34a covering the upper surface of the annular fitting portion 31, a first fixing portion 38 for fixing the coaxial cable 12A, and a second fixing portion 39 for fixing the coaxial cable 12B. Figure 5 As shown, the bottom plate 34a extends from the connection portion with the annular fitting portion 31 to the area bounded by the outer surface of the coaxial cables 12A and 12B. The first fixing portion 38 has fastening portions 34b, 34c, and 34d, which are at the bent position (see Figure 5 and Figure 6 The fastening portions 34b, 34c, and 34d are configured to be bendable and are the cylindrical portions that hold the coaxial cable 12A in a fastened manner.

[0057] The fastening portion 34b is bent so as to cover the mounting portion 36, thereby sandwiching the mounting portion 36, the conductive member 50, the center conductor support portion 45, and the coaxial cable 12A between the fastening portion 34b and the base plate 34a, thereby fixing the relative positions of these components. Specifically, the fastening portion 34b secures the coaxial cable 12A to the mounting portion 36 by causing the protrusion 36a of the mounting portion 36 to contact the outer conductor 15 of the coaxial cable 12A. This ensures that the ground contact member 30 and the outer conductor 15 are in contact and electrically connected. The fastening portion 34c is bent closer to the rear end of the coaxial cable 12A than the fastening portion 34b, covering the exposed portion of the outer conductor 15 of the coaxial cable 12A. This sandwiches the coaxial cable 12A between the fastening portion 34c and the base plate 34a, thereby fixing the position of the coaxial cable 12A. The fastening portion 34d is bent closer to the rear end of the coaxial cable 12A than the fastening portion 34c to cover the outer insulator 16. This sandwiches the coaxial cable 12A between the fastening portion 34d and the base plate 34a, securing the position of the coaxial cable 12A. By fastening the coaxial cable 12A, with the outer conductor 15 exposed, with the fastening portion 34c, the ground contact member 30 is securely in contact with the outer conductor 15, ensuring electrical connection. The configuration of the second fixing portion 39 is identical to that of the first fixing portion 38 (except that the coaxial cable 12A is replaced with the coaxial cable 12B, and the fastening portions 34b, 34c, and 34d are the same).

[0058] The signal contact members 20A and 20B are formed of a conductive material having elasticity. The signal contact member 20A is connected to the center conductor 13 of the coaxial cable 12A and is connected to the signal contact portion 104 (see FIG. 1 ) of the mating connector device 100 (mother connector) mounted on a circuit board (not shown). Figure 7 The signal contact component 20B is connected to the center conductor 13 of the coaxial cable 12B and is also connected to the signal contact portion 105 (see FIG. 1 ) of the mating connector device 100 (mother connector) mounted on a circuit board (not shown). Figure 7 ).

[0059] like Figure 2 and Figure 10 As shown in FIG. 1 and FIG. 2 , the signal contact member 20A includes a first portion 20x, a second portion 20y, a third portion 20z, and a locking portion 20w. The signal contact member 20A is disposed in the cylindrical portion 44 (see FIG. 2 ). Figure 10 ). The second portion 20y is a portion extending along the extending direction of the coaxial cable 12A, and is a portion in contact with the center conductor 13 of the coaxial cable 12A on its upper surface. The first portion 20x is a portion extending bendably from the front end (the end away from the coaxial cable 12A) of the second portion 20y. The first portion 20x is in a state where the housing 34 is in a bent position ( Figure 10The third portion 20z is a portion formed in a U-shape in such a manner that it folds back from the rear end of the second portion 20y (the end on the opposite side of the continuous side with the first portion 20x) and extends downward toward the front end of the second portion 20y, then folds back at the lower end and extends upward. The third portion 20z is connected to the signal contact portion 104 of the other connector device 100 at the portion formed in the U-shape (see FIG. Figure 10 The locking portion 20w is a portion fixed to the insulating housing member 40 by engaging with a locking portion (not shown) of the insulating housing member 40. The locking portion 20w extends downward from both sides of the second portion 20y. The structure of the signal contact member 20B is the same as that of the signal contact member 20A (the coaxial cable 12A is replaced with the coaxial cable 12B, and the first portion 20x, the second portion 20y, the third portion 20z, and the locking portion 20w are the same).

[0060] Figure 3 This is a perspective view of the conductive member 50 of the coaxial connector device 11 of this embodiment as viewed from above. Figure 3 As shown, the conductive member 50 includes a first region 51 , a second region 52 , an intermediate region 53 , an isolation characteristic improving portion 54 (a second ground connecting portion, a second connecting portion), and a connecting portion 59 .

[0061] The first region 51 includes a rear ground connection portion 55 (first ground connection portion) and a front ground connection portion 56 (second ground connection portion, first connection portion) connected to the rear ground connection portion 55. The rear ground connection portion 55 is a flat plate portion that is connected (contacted) with the ground contact member 30, specifically, the placement portion 36 of the first cable support portion 32 (see FIG. Figure 10 ).

[0062] The front ground connection portion 56 is a flat plate portion that is connected (contacted) with the annular fitting portion 102 of the ground contact portion 101 of the mating connector device 100 (see Figure 10 When the front ground connection portion 56 is viewed from the mating direction with the other connector device 100, Figure 6 and Figure 10 As shown, the front ground connection portion 56 overlaps with at least a portion of the signal line (specifically, a portion of the center conductor 13) formed by the center conductor 13 of the coaxial cable 12A and the signal contact component 20A. Figure 6 As shown, the fastening portion 34b as the cylindrical portion overlaps in the arrangement direction of the signal contact members 20A, 20B (the width direction of the coaxial connector device 11). Figure 6As shown, the front ground connection portion 56 is arranged in the opening portion OP1 sandwiched between the end portions 31 a , 31 a of the annular fitting portion 31 .

[0063] The configuration of the second region 52 is identical to that of the first region 51 (except that the coaxial cable 12A is replaced with the coaxial cable 12B, and the rear ground connection portion 55 and the front ground connection portion 56 are the same). Specifically, the conductive member 50 includes a pair of front ground connections 56, 56 connected to the annular mating portion 102 of the mating connector device 100. One of the front ground connections 56 (the front ground connection 56 of the first region 51) overlaps with a portion of the center conductor 13 of the coaxial cable 12A when viewed from the mating direction, while the other front ground connection 56 (the front ground connection 56 of the second region 52) overlaps with a portion of the center conductor 13 of the coaxial cable 12B when viewed from the mating direction.

[0064] The intermediate region 53 is a portion extending in the arrangement direction of the signal contact members 20A, 20B (the width direction of the coaxial connector device 11) so as to connect the first region 51 and the second region 52. The connecting portion 59 is a portion extending upward so as to be continuous with the first region 51 and the second region 52. The connecting portion 59 is a portion inserted into the insulating housing member 40. By inserting the connecting portion 59 into the insertion port 49 of the insulating housing member 40 (see Figure 11 (a)), the conductive member 50 is fixed to the insulating housing member 40.

[0065] like Figure 3 and Figure 9 As shown, the isolation characteristic improving portion 54 includes an extension portion 57 extending from the middle region 53 in the extension direction of the coaxial cables 12A, 12B (toward the front end of the coaxial cables 12A, 12B), and a contact portion 58 formed in a U-shape so as to extend downward from the front end of the extension portion 57, bend back at the lower end, and then extend upward. Figure 9 As shown, the contact portion 58 is connected (contacted) with the contact portion 103 of the ground contact portion 101 disposed between the signal contacts 104 and 105 of the mating connector device 100. Furthermore, a portion of the conductive member 50 is connected to the fastening portion 34b, which is a cylindrical portion, via the mounting portion 36. However, the conductive member 50 may be directly connected to the fastening portion 34b, which is a cylindrical portion that fastens the coaxial cables 12A and 12B.

[0066] Figure 4 This is a perspective view showing the process of installing the coaxial connector device 11 of this embodiment to one end of the coaxial cable 12A, 12B. When installing the coaxial connector device 11 to one end of the coaxial cable 12A, 12B, first, as shown in FIG. Figure 2As shown, the center conductor 13 of the coaxial cables 12A and 12B is placed on the second portion 20y of the signal contact member 20A and 20B. The coaxial cables 12A and 12B to be placed have one end portion in a state where the outer insulator 16 is partially removed to expose the outer conductor 15, and the outer conductor 15 and the inner insulator 14 are each partially removed to expose the center conductor 13.

[0067] The outer shell 34 of the ground contact 30, which was in the upright position, then bends relative to the annular fitting portion 31 of the ground contact 30, assuming a bent position. This bends the outer shell 34 through the flat plate portion 46 of the insulating housing 40, causing the first portion 20x to be bent, with the first portion 20x and the second portion 20y sandwiching the center conductor 13. This connects the center conductor 13 of the coaxial cables 12A and 12B to the signal contacts 20A and 20B. Furthermore, the outer shell 34 abuts against the outer conductor 15 of the coaxial cables 12A and 12B.

[0068] Then, in the bent position, the outer shell 34 is bent by bending the pair of fastening portions 34b, 34b, thereby fastening the outer shell 34 to the mounting portion 36 so as to surround the mounting portion 36 from the outside. Furthermore, the outer shell 34 is fastened to the outer conductors 15 of the coaxial cables 12A, 12B by bending the pair of fastening portions 34c, 34c and the pair of fastening portions 34d, 34d, respectively. Furthermore, the outer shell 34 of the ground contact member 30 is fastened to the outer conductors 15 of the coaxial cables 12A, 12B and the outer insulator 16 by bending the pair of fastening portions 34c, 34c and the pair of fastening portions 34d, 34d, respectively. Thus, the outer shell 34 of the ground contact member 30 is connected to and fixed to the outer conductors 15 of the coaxial cables 12A, 12B.

[0069] The results, such as Figure 5 and Figure 6 As shown, the coaxial connector device 11 can be securely maintained in a state where it is attached to one end portion of the coaxial cables 12A and 12B. Figure 5 This is a perspective view showing a state where the coaxial connector device 11 of the present embodiment is attached to one end portion of coaxial cables 12A and 12B, as viewed from above. Figure 6 It is a bottom view showing a state where the coaxial connector device 11 of the present embodiment is attached to one end portion of the coaxial cables 12A and 12B.

[0070] Figure 7 This is a perspective view showing a mating connector device 100 connected to the coaxial connector device 11 of this embodiment. The mating connector device 100 is fixed to a mounting surface (not shown) on a circuit board where components and the like are mounted.

[0071] The mating connector device 100 includes signal contacts 104 and 105 (a first signal contact and a second signal contact) and a ground contact 101. The signal contacts 104 and 105 are formed from a conductive material and are electrically connected to signal terminals (not shown) provided on the mounting surface of the circuit board. The ground contact 101 is electrically connected to a ground potential portion (not shown) provided on the mounting surface of the circuit board. The ground contact 101 is formed as a member that forms an annular body surrounding the signal contacts 104 and 105. The ground contact 101 includes an annular fitting portion 102 (a first portion) and a contact portion 103 (a second portion). The annular fitting portion 102 is fitted and connected to the annular fitting portion 31 of the ground contact component 30. The contact portion 103 is arranged between the signal contacts 104 and 105 and is in contact with (connected to) the contact portion 58 of the isolation characteristic improving portion 54.

[0072] Figure 8 This is a plan view showing a state in which the coaxial connector device 11 of the present embodiment is attached to one end of the coaxial cables 12A and 12B and then mechanically and electrically connected to the mating connector device 100 . Figure 9 Yes Figure 8 Cross-sectional view of the IX-IX line section. Figure 10 Yes Figure 8 The cross-sectional view of the XX line section. Figure 9 and Figure 10 As shown, when the coaxial connector device 11 is connected to the mating connector device 100 , the annular fitting portion 31 of the ground contact member 30 in the coaxial connector device 11 is fitted and connected to the annular fitting portion 102 of the ground contact portion 101 of the mating connector device 100 .

[0073] In the connected state, Figure 10 As shown, third portion 20z of signal contact component 20A connected to center conductor 13 of coaxial cable 12A contacts (is connected to) signal contact portion 104 of mating connector device 100. Similarly, third portion 20z of signal contact component 20B connected to center conductor 13 of coaxial cable 12B contacts (is connected to) signal contact portion 105 of mating connector device 100. Thus, center conductors 13 of coaxial cables 12A and 12B are electrically connected to signal terminals (not shown) provided on the mounting surface of the circuit board via signal contacts 20A and 20B of coaxial connector device 11 and signal contacts 104 and 105 of mating connector device 100.

[0074] In addition, in the state of being connected, Figure 10As shown, the conductive member 50 contacts the mounting portion 36 at the rear ground connection portion 55 in the first region 51, and the protrusion 36a of the mounting portion 36 contacts the outer conductor 15 of the coaxial cable 12A. The conductive member 50 contacts the annular fitting portion 102 of the ground contact portion 101 of the mating connector device 100 at the front ground connection portion 56 in the first region 51. Similarly, the conductive member 50 contacts the mounting portion 36 at the rear ground connection portion 55 in the second region 52, and the protrusion 36a of the mounting portion 36 contacts the outer conductor 15 of the coaxial cable 12B. The conductive member 50 contacts the annular fitting portion 102 of the ground contact portion 101 of the mating connector device 100 at the front ground connection portion 56 in the second region 52. Thus, the outer conductors 15 of the coaxial cables 12A and 12B are electrically connected to a ground potential portion (not shown) provided on the circuit board via the ground contact member 30 and the conductive member 50 of the coaxial connector device 11 and the ground contact portion 101 of the mating connector device 100 .

[0075] Furthermore, in the state of being connected, as Figure 9 As shown, contact portion 58 of isolation improving portion 54 of conductive member 50 contacts contact portion 103 of ground contact portion 101 of mating connector device 100, which is positioned between signal contacts 104 and 105. Thus, isolation improving portion 54 is provided between the signal lines associated with coaxial cables 12A and 12B, electrically connected to a ground potential portion (not shown) provided on the circuit board.

[0076] Next, refer to Figure 11 and Figure 12 A method of assembling the coaxial connector device 11 according to this embodiment will be described. Figure 11 and Figure 12 This is a diagram illustrating the assembly method of the coaxial connector device of this embodiment. Figure 11 (a) Figure 11 (b) Figure 11 (c) Figure 11 (d) Figure 12 (a) Figure 12 (b) Figure 12 The sequence of (c) shows the assembly steps.

[0077] In the initial steps, such as Figure 11 As shown in (a), a conductive member 50 and an insulating housing member 40 are prepared, and the connecting portion 59 of the conductive member 50 is inserted into the insertion port 49 of the insulating housing member 40. Figure 11 As shown in (b), the conductive member 50 and the insulating housing member 40 are integrated.

[0078] Then, if Figure 11As shown in FIG. 5( c ), the insulating housing member 40 integrally formed with the conductive member 50 is assembled to the ground contact member 30. Specifically, the insulating housing member 40 is assembled to the ground contact member 30 such that the cylindrical portion 44 of the insulating housing member 40 is surrounded by the annular fitting portion 31 of the ground contact member 30 and the central conductor support portion 45 of the insulating housing member 40 is placed on the placement portion 36 of the ground contact member 30.

[0079] Then, if Figure 11 As shown in (d), the signal contact members 20A and 20B are arranged on the cylindrical portion 44 of the insulating housing member 40 assembled to the ground contact member 30. Figure 12 (a) shows the coaxial connector device 11 with the ground contact member 30 in an upright position.

[0080] Then, if Figure 12 As shown in (b), the coaxial connector device 11 is mounted on one end of the coaxial cable 12A, 12B. Specifically, the center conductor 13 of the coaxial cable 12A, 12B is placed on the second portion 20y (see Figure 4 ).

[0081] Then, the outer shell 34 of the ground contact member 30, which was in the upright position, is brought into a bent position, and the fastening portions 34b, 34c, and 34d are bent, thereby connecting the center conductor 13 of the coaxial cables 12A and 12B to the signal contact members 20A and 20B. In addition, the outer shell 34 of the ground contact member 30 is connected and fixed to the outer conductor 15 of the coaxial cables 12A and 12B. As a result, Figure 12 As shown in (c), the coaxial connector device 11 is firmly maintained in the state of being attached to one end portion of the coaxial cables 12A and 12B.

[0082] Next, the effects of the coaxial connector device 11 according to this embodiment will be described.

[0083] The coaxial connector device 11 of this embodiment includes: a signal contact component 20A connected to the center conductor 13 of the coaxial cable 12A and connected to the signal contact portion 104 of the mating connector device 100 mounted on the circuit board; a signal contact component 20B connected to the center conductor 13 of the coaxial cable 12B and connected to the signal contact portion 105 of the mating connector device 100; a ground contact component 30 to which a ground potential is applied, and which has an annular fitting portion 31 that fits into the annular fitting portion 102 connected to the ground contact portion 101 of the mating connector device, and an outer conductor extending bendably from the annular fitting portion 31 and connected to the coaxial cables 12A and 12B. The outer shell portion 34 of the body 15; and the conductive component 50, having a rear ground connection portion 55 connected to the ground contact component 30, and a front ground connection portion 56 connected to the ground contact portion 101 of the counterpart connector device 100; the front ground connection portion 56 of the conductive component 50, when viewed from the mating direction with the counterpart connector device 100, overlaps with at least a portion of the signal line composed of the center conductor 13 of the coaxial cable 12A and the signal contact component 20A (specifically, a portion of the center conductor 13), and at least a portion of the signal line composed of the center conductor 13 of the coaxial cable 12B and the signal contact component 20B (specifically, a portion of the center conductor 13).

[0084] The coaxial connector device 11 of this embodiment includes a signal contact 20A connected to the center conductor 13 of a coaxial cable 12A, a signal contact 20B connected to the center conductor 13 of a coaxial cable 12B, a ground contact 30 to which a ground potential is applied, and a conductive member 50. A rear ground connection 55 of the conductive member 50 is connected to the ground contact 30, and a front ground connection 56 is connected to the ground contact 101 of a mating connector device 100. Furthermore, in this coaxial connector device 11, the front ground connection 56 overlaps at least a portion of the signal line formed by the center conductor 13 of the coaxial cable 12A and the signal contact 20A, and at least a portion of the signal line formed by the center conductor 13 of the coaxial cable 12B and the signal contact 20B, when viewed from the mating direction. The overlap of the front ground connection 56 with at least a portion of these signal lines prevents signals from these signal lines from being transmitted to the outside (around the coaxial connector device 11). This can prevent the signal of the signal line from becoming noise and affecting surrounding external products, thereby improving the EMI characteristics of the coaxial connector device 11 and enhancing noise resistance.

[0085] The housing 34 of the ground contact member 30 may include a fastening portion 34b (cylinder) that holds and secures the coaxial cables 12A and 12B, and the conductive member 50 is connected to the fastening portion 34b. By connecting (contacting) the fastening portion 34b, which holds the coaxial cables 12A and 12B constituting the signal lines, to the conductive member 50, the contact point can be reliably maintained at ground potential, and the signal lines and the conductive member 50 (specifically, the front ground connection portion 56) can be precisely overlapped.

[0086] The ground contact portion 101 of the mating connector device 100 may include an annular fitting portion 102 that fits and connects to the annular fitting portion 31 of the ground contact component 30. The conductive component 50 may include a pair of front ground connection portions 56 connected to the annular fitting portion 102. One of the pair of front ground connection portions 56 may overlap at least a portion of one signal line when viewed from the mating direction, and the other of the pair of front ground connection portions 56 may overlap at least a portion of the other signal line when viewed from the mating direction. By connecting the pair of front ground connection portions 56 to the mating-related portion (annular fitting portion 102) of the ground contact portion 101 of the mating connector device 100 in this manner, the contact portion can be reliably maintained at ground potential when mated with the mating connector device 100. Furthermore, by having one of the pair of front ground connection portions 56 overlap at least a portion of one signal line and the other of the pair of front ground connection portions 56 overlap at least a portion of the other signal line, the signals of both signal lines can be reliably prevented from being transmitted to the outside (around the coaxial connector device 11).

[0087] The housing portion 34 of the ground contact 30 includes a fastening portion 34b that secures and holds the coaxial cables 12A and 12B. The pair of front ground connectors 56 overlap with the fastening portion 34b in the direction in which the signal contacts 20A and 20B are arranged, as viewed from the mating direction. This overlap of the pair of front ground connectors 56 with the fastening portion 34b that secures the coaxial cables 12A and 12B creates a precise overlap between the pair of front ground connectors 56 and the signal lines (specifically, the center conductors 13 of the coaxial cables 12A and 12B). This effectively prevents signals from the two signal lines from being transmitted to the outside (around the coaxial connector device 11).

[0088] Alternatively, an opening OP1 may be formed in the annular fitting portion 31 of the ground contact member 30, and a pair of front ground connection portions 56 may be disposed in the opening OP1. By providing the pair of front ground connection portions 56, which serve as the conductive member 50, in the opening OP1 formed during manufacturing, for example, the pair of front ground connection portions 56 can partially block the opening OP1, thereby effectively suppressing leakage of the signal line signal (high-frequency signal) from the opening OP1 to the outside.

[0089] The ground contact portion 101 of the mating connector device 100 may include a contact portion 103 disposed between the signal contact portion 104 and the signal contact portion 105, and the conductive member 50 may include an isolation characteristic improving portion 54 connected to the contact portion 103. By connecting the isolation characteristic improving portion 54 to the contact portion 103 of the ground contact portion 101 of the mating connector device 100, disposed between the signal contact portion 104 and the signal contact portion 105, signal transmission between the different signal contacts 20A and 20B is suppressed. This improves isolation characteristics and enhances noise immunity.

[0090] The aspects of the present invention are not limited to the above-described embodiments. Figure 13 and Figure 14 It is an exploded perspective view showing another aspect of a coaxial connector device 511 according to the present embodiment. Figure 15 This is a perspective view from below showing a coaxial connector device 511 attached to one end of a coaxial cable. The following description will focus on the configuration of coaxial connector device 511 that differs from coaxial connector device 11 of the aforementioned embodiment, and descriptions of configurations common to (or corresponding to) coaxial connector device 11 may be omitted.

[0091] like Figures 13 to 15 As shown, the coaxial connector device 511 includes two signal contacts 520A and 520B (a first signal contact and a second signal contact), a ground contact 530, and a conductive member 550 as main components. The coaxial connector device 511 may also include an insulating housing 540.

[0092] The insulating housing 540 supports the signal contact components 520A, 520B and the ground contact component 530 in a mutually insulated state. The insulating housing 540 has a first support portion 541 (see FIG. 5 ) for supporting the signal contact component 520A. Figure 19 (c)) The second supporting portion 542 for supporting the signal contact member 520B (see Figure 19 (c)), and the base portion 543. The first support portion 541 and the second support portion 542 are arranged adjacent to each other in the width direction of the coaxial connector device 511.

[0093] A protrusion 591 that protrudes outward in the width direction is provided on the outer side surfaces of the first support portion 541 and the second support portion 542. The protrusion 591 is a portion that is engaged with the recess 535x (details will be described below) of the arm portion 535 of the ground contact member 530 when the coaxial connector device 511 is assembled, thereby fixing the position of the insulating housing 540 relative to the ground contact member 530 (see FIG. Figure 19 (c)(d)).

[0094] like Figure 14 As shown, insertion openings 549, which serve as recessed portions, are formed at both ends of the lower surface of the first support portion 541 and the second support portion 542 in the width direction. Insertion openings 549 are portions into which a connecting portion 559 (described in detail below) of the conductive member 550 is inserted. Inserting the connecting portion 559 into the insertion openings 549 secures the position of the conductive member 550 relative to the insulating housing 540.

[0095] like Figure 13 As shown, the base portion 543 is continuous with the first support portion 541 and the second support portion 542 in the direction in which the coaxial cables 12A and 12B extend. It is located closer to the front ends (in the forward direction) of the coaxial cables 12A and 12B than the first support portion 541 and the second support portion 542. A recess 546 for securing the isolation characteristic improving portion 570 described below is formed in the center portion of the base portion 543 in the width direction of the coaxial connector device 511. The recess 546 extends from the portion sandwiched between the first support portion 541 and the second support portion 542 to the front end of the base portion 543 along the direction in which the coaxial cables 12A and 12B extend.

[0096] like Figure 14 As shown, contact fixing portions 547 and 548 extending downward are formed at the front end portion of the lower surface of the base portion 543. The contact fixing portion 547 is a portion around which the third portion 520z (details will be described below) of the signal contact component 520A extending through the interior of the base portion 543 is wound and fixed. The contact fixing portion 548 is a portion around which the third portion 520z (details will be described below) of the signal contact component 520B extending through the interior of the base portion 543 is wound and fixed (see FIG. Figure 18 (c)).

[0097] The ground contact member 530 is applied with a ground potential and is electrically connected to the outer conductor 15 (see FIG. 1 ) of the coaxial cables 12A and 12B via a ground rod 581 (details of which will be described below). Figure 18 (c) The ground contact member 530 includes an annular fitting portion 531 , a pair of arm portions 535 , 535 , and a shell portion 534 .

[0098] The annular fitting portion 531 partially surrounds a portion of the insulating housing 540 (specifically, the base portion 543 ) and is fitted and connected to the mating connector device 600 (see FIG. Figure 16 ) is a portion of the annular fitting portion 630 as a ground contact portion. The annular fitting portion 531 is formed in a substantially cylindrical shape, but its rear end portion is discontinuous and has an opening 595 (see Figure 15 ).

[0099] The pair of arms 535, 535 are continuous with the annular fitting portion 531 and extend in the width direction of the coaxial connector device 511, facing each other and extending in the direction in which the coaxial cables 12A and 12B extend. One arm 535 extends in this direction along the outer surface of the first support portion 541. The other arm 535 extends in this direction along the outer surface of the second support portion 542. Each of the pair of arms 535, 535 has a recess 535x formed therein that engages with the protrusion 591 of the insulating housing 540.

[0100] The housing 534 includes a bottom plate 534a that covers the upper surface of the annular fitting portion 531, a first fixing portion 538 (barrel) for securing the coaxial cable 12A, and a second fixing portion 539 (barrel) for securing the coaxial cable 12B. The bottom plate 534a is continuous with the front end of the annular fitting portion 531 and extends rearward at a bend to a position where it covers a grounding rod 581 (described in detail below) on the upper portion of a cable securing portion 580 (described in detail below).

[0101] The first fixing portion 538 holds the coaxial cable 12A. The first fixing portion 538 extends continuously from the widthwise outer edge of the rear end of the base plate 534a (the portion of the base plate 534a further rearward than the portion covering the upper surface of the annular fitting portion 531). The first fixing portion 538 is bendable and, at the bent position, includes a fastening portion 534b that covers the arm portion 535 from the outside in the widthwise direction, and a fastening portion 534c that covers the cable fixing portion 580 (the lower grounding bar 581, described in detail below) from below. The fastening portion 534b is bent at a location continuous with the base plate 534a to cover the arm portion 535. The fastening portion 534c is bent at a location continuous with the fastening portion 534b to cover the lower grounding bar 581. Thus, the first fixing portion 538 does not directly fasten the coaxial cable 12A, but rather covers the cable fixing portion 580, thereby holding the coaxial cable 12A fixed by the cable fixing portion 580. The second fixing portion 539 has the same configuration as the first fixing portion 538 (with the coaxial cable 12A replaced by the coaxial cable 12B and the fastening portions 534b and 534c). In other words, the second fixing portion 539 does not directly fasten the coaxial cable 12B, but rather covers the cable fixing portion 580, thereby holding the coaxial cable 12B fixed by the cable fixing portion 580.

[0102] The cable fixing portion 580 secures the coaxial cables 12A and 12B. It includes plate-shaped grounding rods 581, 581 facing each other in the vertical direction, and solder portions 582 that are inserted between the grounding rods 581, 581 and the coaxial cables 12A and 12B to secure the coaxial cables 12A and 12B. The solder portions 582 are filled to cover the outer conductors 15. The grounding rods 581, 581 cover the upper and lower surfaces of the solder portions 582, thereby electrically connecting the grounding rods 581, 581 and the outer conductors 15.

[0103] The top ground rod 581 is a ground rod with its front end bent downward in the center of the width direction, passing through the inside of the solder portion 582 and connected to the isolation characteristic improving portion 570 (details will be described below) (see Figure 18 (b)) By bringing one grounding rod 581 into contact with the isolation characteristic improving portion 570 in this manner, the isolation characteristic improving portion 570 is electrically connected to the outer conductors 15 of the coaxial cables 12A and 12B via the grounding rod 581 .

[0104] The signal contact component 520A is connected to the center conductor 13 of the coaxial cable 12A and is connected to the signal contact portion 604 of the mating connector device 600 (see FIG. Figure 16 ) conductive component. The signal contact component 520B is connected to the center conductor 13 of the coaxial cable 12B and is connected to the signal contact portion 605 of the other connector device 600 (see Figure 16 ).

[0105] The signal contact component 520A has a first portion 520x, a second portion 520y, and a third portion 520z. The signal contact component 520A is supported by the first support portion 541. The second portion 520y is a portion extending in the extension direction of the coaxial cable 12A, and is a portion that contacts the center conductor 13 of the coaxial cable 12A on the upper surface. The first portion 520x is a portion that is continuous with the front end of the second portion 520y and extends forward. The first portion 520x has a portion that is continuous with the front end of the second portion 520y and extends obliquely upward, and a portion that is continuous with the obliquely extended portion and extends horizontally. The third portion 520z is a portion that is continuous with the front end of the first portion 520x and extends downward, and is further formed into a U-shape in such a manner that the lower end of the portion extending downward is folded back and then extends upward. The third portion 520z is in contact with the signal contact portion 604 (refer to FIG. 1 ) of the counterpart connector device 600 at the portion formed into the U-shape. Figure 16 The signal contact component 520B has the same structure as the signal contact component 520A (the coaxial cable 12A is replaced by the coaxial cable 12B, and the first part 520x, the second part 520y, and the third part 520z are the same).

[0106] The conductive member 550 includes a rear ground connection portion 555 (first ground connection portion), an inclined portion 556 continuous with the rear ground connection portion 555 , and a front ground connection portion 557 (second ground connection portion, first connection portion) continuous with the inclined portion 556 .

[0107] The rear ground connection portion 555 is a flat plate portion that is connected (contacted) with the ground contact member 530, specifically, the fastening portion 534c of the first fixing portion 538 and the second fixing portion 539 (see FIG. Figure 18 (c)). A notch 558 is formed in the center of the width direction of the rear end of the rear ground connection portion 555. Solder is filled in the notch 558 to electrically connect the lower ground rod 581 to the conductive member 550. This ensures that the shielding is improved by ensuring a reliable contact and that the mechanical connection is achieved by a firm connection. Figure 18 As shown in (b), solder is filled into the through-portion 536 of the bottom plate 534a to electrically connect the upper grounding rod 581 to the ground contact member 530. This soldering is performed after the first fixing portion 538 (barrel) and the second fixing portion 539, which serve as the cylindrical portion, are compressed. Connecting portions 559 projecting upward are provided at both ends of the width direction of the front end of the rear grounding connector 555. Inserting the connecting portions 559 into the insertion opening 549 of the insulating housing 540 secures the position of the rear grounding connector 555 relative to the insulating housing 540. The inclined portion 556 is continuous with the front end of the rear grounding connector 555 and extends forward at an angle. It is formed in an upwardly inclined shape corresponding to the inclined shape of the lower surface of the insulating housing 540.

[0108] The front ground connection portion 557 is a flat plate portion that is connected (contacted) with the annular fitting portion 630 (first portion) of the mating connector device 600 as a ground contact portion (see Figure 18 (c)). The front ground connection portion 557 is a portion that is continuous with the front end of the inclined portion 556 and extends forward while being inclined downward. The front end portion of the front ground connection portion 557 is disposed in the opening portion 595 of the annular fitting portion 531 (see Figure 15 ), and connected to the annular fitting portion 630 at its front end portion (refer to Figure 18 (c) The front ground connection portion 557 is formed continuously in the direction in which the signal contact components 520A and 520B are arranged, that is, in the width direction. "Continuously formed" here means formed without cuts or gaps. Furthermore, the front ground connection portion 557 overlaps at least a portion of the two signal lines (in this embodiment, both) when viewed from the mating direction.

[0109] The conductive member 550 further includes an isolation characteristic improving portion 570 (second ground connecting portion, second connecting portion). This isolation characteristic improving portion 570 is formed of a component separate from the plate-shaped component consisting of the rear ground connecting portion 555, the inclined portion 556, and the front ground connecting portion 557 described above. Thus, the isolation characteristic improving portion 570 is formed of a component separate from other regions of the second ground connecting portion (the front ground connecting portion 557).

[0110] The isolation characteristic improving portion 570 is configured to extend between the signal contact member 520A and the signal contact member 520B, along the extending direction of the signal contact member 520A and the signal contact member 520B, to prevent signal transmission between the signal contact member 520A and the signal contact member 520B. The isolation characteristic improving portion 570 is a wall-shaped member having surfaces facing the signal contact members 520A and 520B. The isolation characteristic improving portion 570 is disposed between the signal contact member 520A and the signal contact member 520B so as to shield at least a portion of the area between the signal contact member 520A and the signal contact member 520B.

[0111] like Figure 18 As shown in (b), the isolation characteristic improving portion 570 may be arranged between the signal contact component 520A and the signal contact component 520B so as to cover the entire area between the signal contact component 520A and the signal contact component 520B. Figure 18 (b) and Figure 18 As shown in (c), the area of the isolation characteristic improving portion 570 viewed in the width direction is larger than the areas of the signal contact member 520A and the signal contact member 520B viewed in the width direction.

[0112] like Figure 18 As shown in (b), the isolation characteristic improving portion 570 includes a first portion 570x, a second portion 570y, a third portion 570z, and a fourth portion 570v. The second portion 570y is a portion extending along the second portion 520y of the signal contact members 520A and 520B, and is connected to a grounding rod 581 electrically connected to the outer conductor 15 of the coaxial cables 12A and 12B on its upper surface. The first portion 570x is a portion extending along the first portion 520x of the signal contact members 520A and 520B. At least a portion of the upper end portion of the first portion 570x is in contact with the bottom plate 534a of the housing portion 534 (see FIG. 1 ). Figure 18(b)). The third portion 570z extends downward from the third portion 520z of the signal contact components 520A and 520B. The third portion 570z is connected to (contacts) the contact portion 603 of the ground contact portion of the mating connector device 600. The fourth portion 570v is continuous with the first portion 570x and extends downward, and is the portion to be pressed into the insulating housing 540.

[0113] Figure 16 It is a perspective view showing a mating connector device 600 connected to the coaxial connector device 511 . Figure 17 Yes Figure 16 1 is an exploded perspective view of the mating connector device 600 as viewed from above.

[0114] like Figure 16 and Figure 17 As shown, the mating connector device 600 includes signal contacts 604 and 605 (a first signal contact and a second signal contact), an annular fitting portion 630 as a ground contact, a contact portion 603 , and an insulating housing 640 .

[0115] The insulating housing 640 supports the signal contacts 604 and 605, the annular fitting portion 630 serving as the ground contact, and the contact portion 603, in a mutually insulated state. The signal contact 604 includes a pair of contact portions 604a and 604b. The contact portions 604a and 604b contact (connect) the third portion 520z of the signal contact component 520A with the third portion 520z sandwiched therebetween. The signal contact 605 includes a pair of contact portions 605a and 605b. The contact portions 605a and 605b contact (connect) the third portion 520z of the signal contact component 520B with the third portion 520z sandwiched therebetween.

[0116] The contact portion 603 includes a pair of contact portions 603a and 603b. The contact portions 603a and 603b contact (connect) the third portion 570z of the isolation characteristic improving portion 570 with the third portion 570z sandwiched therebetween. The annular fitting portion 630 is fitted and connected to the annular fitting portion 531 of the ground contact member 530.

[0117] Figure 18 (a) is a plan view showing a state where the coaxial connector device 511 is attached to one end of the coaxial cables 12A and 12B and is then mechanically and electrically connected to the mating connector device 600. Figure 18 (b) is along Figure 18 Cross-sectional view of (a) along line (b)-(b). Figure 18 (c) is along Figure 18 Cross-sectional view along line (c)-(c) of (a). Figure 18 (d) is along Figure 18 Cross-sectional view along line (d)-(d) of (a).

[0118] like Figure 18 (b) and Figure 18 As shown in (c), when the coaxial connector device 511 is connected to the mating connector device 600, the annular fitting portion 531 of the ground contact member 530 in the coaxial connector device 511 is fitted and connected to the annular fitting portion 630 of the ground contact portion of the mating connector device 600.

[0119] In the connected state, Figure 18 As shown in (c), the third portion 520z of the signal contact component 520B, which connects the second portion 520y to the center conductor 13 of the coaxial cable 12B, contacts the pair of contact portions 605a, 605b of the signal contact portion 605 of the mating connector device 600 (in the case of the signal contact component 520A, it contacts the pair of contact portions 604a, 604b of the signal contact portion 604). As a result, the center conductors 13 of the coaxial cables 12A, 12B are electrically connected to the signal terminals (not shown) provided on the mounting surface of the circuit board via the signal contacts 520A, 520B of the coaxial connector device 511 and the signal contacts 604, 605 of the mating connector device 600.

[0120] In addition, in the state of being connected, Figure 18 As shown in Figure (c), the rear ground connection portion 555 of the conductive member 550 contacts the fastening portion 534c of the ground contact member 530 and the ground bar 581 of the cable fixing portion 580. Furthermore, the front ground connection portion 557 contacts the annular fitting portion 630, which serves as the ground contact portion of the mating connector device 600. The ground bar 581 is electrically connected to the outer conductors 15 of the coaxial cables 12A and 12B. Consequently, the outer conductors 15 of the coaxial cables 12A and 12B are electrically connected to a ground potential portion (not shown) provided on the circuit board via the ground contact member 530 and the conductive member 550 of the coaxial connector device 511, and the annular fitting portion 630 of the mating connector device 600.

[0121] Furthermore, in the state of being connected, as Figure 18As shown in FIG. 5( b ), the isolation characteristic improving portion 570 connected to the grounding bar 581 extends between the signal contact component 520A and the signal contact component 520B, along the direction in which the signal contact components 520A and 520B extend, and is positioned between the signal contact components 520A and 520B. Furthermore, the third portion 570z of the isolation characteristic improving portion 570 contacts a pair of contact portions 603a and 603b of the contact portion 603 of the ground contact portion of the mating connector device 600. Thus, the isolation characteristic improving portion 570 is provided between the signal lines to prevent signal transmission between the signal lines. Furthermore, the isolation characteristic improving portion 570 is electrically connected to a ground potential portion (not shown) provided on the circuit board.

[0122] Next, refer to Figure 19 and Figure 20 A method of assembling the coaxial connector device 511 will be described. Figure 19 (a) to (d) are diagrams illustrating a method of assembling the coaxial connector device 511. Figure 20 (a) (b) are diagrams illustrating the assembly method of the coaxial connector device 511, and are diagrams showing the following steps. Figure 19 (d) Diagram of the subsequent steps.

[0123] In the initial steps, such as Figure 19 As shown in FIG. 1 , an insulating housing 540 formed by integrally molding a conductive component 550, signal contact components 520A and 520B, and an isolation characteristic improvement portion 570 are prepared. The connection portion 559 of the conductive component 550 is inserted into the insertion port 549 of the insulating housing 540, and the isolation characteristic improvement portion 570 is fixed to the recess 546 of the insulating housing 540 (see FIG. 1 ). Figure 13 ), and Figure 19 As shown in (b), the conductive component 550 and the like are integrated with the insulating housing 540 .

[0124] Then, if Figure 19 As shown in FIG. 5( c ), the insulating housing 540 integrally formed with the conductive member 550 and the like is assembled to the ground contact member 530. Specifically, the insulating housing 540 is assembled to the ground contact member 530 in such a manner that the protrusion 591 of the insulating housing 540 is fitted into the recess 535x of the pair of arm portions 535, 535 (see FIG. 5( c )). Figure 19 (d)).

[0125] Then, if Figure 20As shown in (a), the coaxial connector device 511 is mounted on one end of the coaxial cables 12A and 12B. During mounting, the signal contact component 520A is connected to the center conductor 13 of the coaxial cable 12A, and the signal contact component 520B is connected to the center conductor 13 of the coaxial cable 12B. In addition, during mounting, the upper grounding rod 581 is connected to the isolation characteristic improving portion 570. Then, the outer shell portion 534 of the grounding contact component 530 in the upright position is bent, and the fastening portions 534b and 534c are bent, thereby Figure 20 As shown in (b), the coaxial connector device 511 is firmly attached to one end of the coaxial cables 12A and 12B. After the fastening portions 534b and 534c are bent, solder is filled into the cutouts 558 and the through-portion 536.

[0126] Next, the effects of the coaxial connector device 511 will be described.

[0127] In the coaxial connector device 511, the housing portion 534 of the ground contact member 530 includes a first fixing portion 538 and a second fixing portion 539, which serve as cylindrical portions for retaining the coaxial cables 12A and 12B. The conductive member 550 can be connected to the first fixing portion 538 and the second fixing portion 539. As described above, the first fixing portion 538 and the second fixing portion 539 do not directly secure the coaxial cables 12A and 12B, but rather, by covering the cable retaining portion 580 and retaining them, a portion where the signal line and the conductive member 550 overlap can be formed.

[0128] The front ground connection portion 557 of the conductive member 550 is connected to the annular fitting portion 630 and is formed continuously in the direction in which the signal contact members 520A and 520B are arranged, i.e., in the width direction. When viewed from the mating direction, it overlaps at least a portion of the two signal lines. By connecting the front ground connection portion 557 to the mating-related portion (annular fitting portion 630) of the ground contact portion of the mating connector device 600 in this manner, the contact portion can be reliably maintained at ground potential when mated with the mating connector device 600. Furthermore, by ensuring that the front ground connection portion 557, formed continuously without any cuts or gaps, overlaps at least a portion of the two signal lines, the signals of the two signal lines can be more effectively suppressed from being transmitted externally.

[0129] Alternatively, an opening 595 may be formed in the annular fitting portion 630, and the front ground connection portion 557 may be disposed in the opening 595. By providing the front ground connection portion 557 as a conductive member in the opening 595 formed, for example, during manufacturing, the front ground connection portion 557, which has no cutouts or gaps, can effectively block the opening 595, thereby effectively suppressing leakage of the signal line signal (high-frequency signal) from the opening 595 to the outside.

[0130] The isolation improving portion 570 may be disposed between the signal contact component 520A and the signal contact component 520B so as to shield at least a portion of the region between the signal contact component 520A and the signal contact component 520B. By disposing the isolation improving portion 570 so as to shield the region between the signal contact component 520A and the signal contact component 520B, the transmission of signals between the signal contact component 520A and the signal contact component 520B can be more effectively suppressed. This further improves the isolation characteristics.

[0131] The isolation characteristic improving portion 570 may also extend along the extending direction of the signal contact component 520A and the signal contact component 520B. Thus, the isolation characteristic improving portion 570 can effectively shield the area between the signal contact component 520A and the signal contact component 520B, thereby further improving the isolation characteristic.

[0132] The isolation characteristic improving portion 570 may be disposed between the signal contact portion 520A and the signal contact portion 520B so as to cover the entire area between the signal contact portion 520A and the signal contact portion 520B. By completely covering the area between the signal contact portions with the isolation characteristic improving portion 570, the isolation characteristic can be further improved.

[0133] The area of the isolation characteristic improving portion 570, as viewed in the direction of arrangement of the signal contact components 520A and 520B, i.e., the width direction, can be larger than the area of the signal contact components 520A and 520B as viewed in the arrangement direction. By making the area of the isolation characteristic improving portion 570 larger in this manner, the isolation characteristic improving portion 570 can more effectively suppress signal transmission between the signal contact components. This further improves the isolation characteristics.

[0134] The isolation improving portion 570 can also be formed from a different component than the other regions of the second ground connection portion. This increases the freedom in the shape, material, and placement of the isolation improving portion 570. By appropriately selecting the shape, material, and placement of the isolation improving portion 570, signal transmission between signal contact components can be more effectively suppressed, thereby further improving isolation characteristics.

[0135] The isolation improving portion 570 may also be connected to a grounding rod 581 electrically connected to the outer conductors 15 of the coaxial cables 12A and 12B. Thus, similarly to the center conductors 13 of the coaxial cables 12A and 12B, which are adjacent to each other with the outer conductors 15 interposed therebetween, the signal contact components 520A and 520B are adjacent to each other with the isolation improving portion 570 electrically connected to the outer conductors 15 interposed therebetween via the grounding rod 581. Therefore, similarly to the adjacent coaxial cables 12A and 12B, mutual transmission of signals between the signal contact components 520A and 520B can be effectively suppressed.

[0136] [Explanation of Symbols]

[0137] 11,511: Coaxial connector device

[0138] 12A: Coaxial cable (first coaxial cable)

[0139] 12B: coaxial cable (second coaxial cable)

[0140] 13: Center conductor

[0141] 15: Outer conductor

[0142] 20A, 520A: Signal contact part (first signal contact part)

[0143] 20B, 520B: Signal contact part (second signal contact part)

[0144] 30,530: Ground contact parts

[0145] 31,531: Annular fitting part

[0146] 34,534: Shell

[0147] 34b, 34c, 34d, 534b, 534c: Fastening portion (cylinder)

[0148] 50,550: conductive parts

[0149] 54,570: Isolation characteristic improvement part (second ground connection part, second connection part)

[0150] 55,555: Rear ground connection (first ground connection)

[0151] 56,557: Front ground connection (second ground connection, first connection)

[0152] 100,600: Mating connector device (Mating connector)

[0153] 101: Ground contact portion

[0154] 102,630: Annular fitting part (Part 1)

[0155] 103,603: Contact part (Part 2)

[0156] 104,604: Signal contact part (1st signal contact part)

[0157] 105,605: Signal contact part (second signal contact part)

[0158] 581: Ground Rod

[0159] OP1,595: Opening.

Claims

1. An electrical connector comprising: a first signal contact component connected to the center conductor of the first coaxial cable and connected to a first signal contact portion of a mating connector mounted on the circuit board; a second signal contact member connected to the center conductor of the second coaxial cable and connected to the second signal contact portion of the mating connector; a ground contact member to which a ground potential is applied, comprising an annular fitting portion fitted and connected to the ground contact portion of the mating connector, and a shell portion bendably extending from the annular fitting portion and connected to the outer conductors of the first coaxial cable and the second coaxial cable; as well as a conductive member having a first ground connection portion connected to the ground contact member and a second ground connection portion connected to the ground contact portion of the mating connector; The second ground connection portion of the conductive component overlaps with at least a portion of the first signal line formed by the center conductor of the first coaxial cable and the first signal contact component, and at least a portion of the second signal line formed by the center conductor of the second coaxial cable and the second signal contact component when viewed from the mating direction with the mating connector.

2. The electrical connector according to claim 1, wherein The outer shell of the ground contact member has a cylindrical portion for fastening and holding the first coaxial cable and the second coaxial cable. The conductive member is connected to the barrel.

3. The electrical connector according to claim 1, wherein The outer shell of the ground contact member has a cylindrical portion for holding the first coaxial cable and the second coaxial cable. The conductive member is connected to the barrel.

4. The electrical connector according to any one of claims 1 to 3, wherein The ground contact portion of the mating connector has a first portion that is fitted and connected to the annular fitting portion of the ground contact member. The second ground connection portion has a pair of first connection portions connected to the first portion. One of the pair of first connecting portions overlaps with at least a portion of the first signal line when viewed from the mating direction. The other of the pair of first connecting portions overlaps with at least a portion of the second signal line when viewed from the mating direction.

5. The electrical connector according to claim 4, wherein The outer shell of the ground contact member has a cylindrical portion for firmly holding the first coaxial cable and the second coaxial cable. The pair of first connecting portions overlap the cylindrical portion in an arrangement direction of the first signal contact member and the second signal contact member when viewed from the mating direction.

6. The electrical connector according to claim 4 or 5, wherein An opening is formed in the annular fitting portion of the ground contact member. The pair of first connecting portions are arranged in the opening.

7. The electrical connector according to any one of claims 1 to 3, wherein The ground contact portion of the mating connector has a first portion that is fitted and connected to the annular fitting portion of the ground contact member. The second ground connection portion has a first connection portion connected to the first portion, The first connecting portion is formed continuously in the arrangement direction of the first signal contact member and the second signal contact member, and overlaps with at least a portion of the first signal line and at least a portion of the second signal line when viewed from the mating direction.

8. The electrical connector according to claim 7, wherein An opening is formed in the annular fitting portion of the ground contact member. The first connection portion is arranged in the opening.

9. The electrical connector according to any one of claims 1 to 8, wherein The ground contact portion of the mating connector has a second portion disposed between the first signal contact portion and the second signal contact portion. The second ground connection portion includes a second connection portion connected to the second portion.

10. The electrical connector according to claim 9, wherein The second connecting portion is disposed between the first signal contact member and the second signal contact member so as to shield at least a portion of a region between the first signal contact member and the second signal contact member.

11. The electrical connector according to claim 10, wherein The second connecting portion extends along an extending direction of the first signal contact member and the second signal contact member.

12. The electrical connector according to claim 10 or 11, wherein The second connecting portion is disposed between the first signal contact member and the second signal contact member so as to cover the entire region between the first signal contact member and the second signal contact member.

13. The electrical connector according to any one of claims 10 to 12, wherein An area of the second connection portion viewed from an arrangement direction of the first signal contact member and the second signal contact member is larger than an area of the first signal contact member and the second signal contact member viewed from the arrangement direction.

14. The electrical connector according to any one of claims 10 to 13, wherein The second connecting portion is formed of a member different from other regions in the second ground connecting portion.

15. The electrical connector according to claim 14, wherein The second connection portion is connected to a ground rod electrically connected to outer conductors of the first coaxial cable and the second coaxial cable.

16. The electrical connector according to claim 1, wherein The second ground connection portion of the conductive member overlaps at least a portion of the center conductor of the first coaxial cable and at least a portion of the center conductor of the second coaxial cable when viewed from the mating direction with the mating connector.

17. An electrical connector comprising: a first signal contact component connected to the center conductor of the first coaxial cable and connected to a first signal contact portion of a mating connector mounted on the circuit board; a second signal contact member connected to the center conductor of the second coaxial cable and connected to the second signal contact portion of the mating connector; a ground contact member to which a ground potential is applied, comprising an annular fitting portion fitted and connected to the ground contact portion of the mating connector, and a shell portion bendably extending from the annular fitting portion and connected to the outer conductors of the first coaxial cable and the second coaxial cable; as well as a conductive member having a first ground connection portion connected to the ground contact member and a second ground connection portion connected to the ground contact portion of the mating connector; The second ground connection portion of the conductive component overlaps with at least a portion of the first signal line formed by the center conductor of the first coaxial cable and the first signal contact component, or at least a portion of the second signal line formed by the center conductor of the second coaxial cable and the second signal contact component, when viewed from the mating direction with the mating connector.

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