Connector assembly and structure including connector assembly

JP2025059198A5Pending Publication Date: 2026-08-03JAPAN AVIATION ELECTRONICS IND LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
JAPAN AVIATION ELECTRONICS IND LTD
Filing Date
2023-09-29
Publication Date
2026-08-03

AI Technical Summary

Technical Problem

Existing coaxial connector assemblies face challenges when connecting to flexible boards with low heat resistance, as soldering the central terminal to the signal line is difficult, and pressing the terminal against the line can lead to reduced contact reliability due to board deflection.

Method used

A connector assembly design that includes a coaxial connector with an outer terminal, central terminal, and insulating member, where the central terminal is pressed against the signal line on a flexible board without soldering, using a fixed member to suppress deflection of the flexible board and ensure reliable contact.

Benefits of technology

This design achieves high contact reliability between the coaxial connector and the flexible board by preventing deflection and ensuring consistent pressure, even with flexible boards that have low heat resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a structure that connects a coaxial connector to a flexible substrate and has high contact reliability.SOLUTION: A connector assembly 12 includes a coaxial connector 20, a fixed member 40, and two fixing members 60. The coaxial connector 20 includes an outer terminal 24 and a center terminal 21. The outer terminal 24 has two protruding portions 27 spaced apart from each other in a lateral direction (Y direction). The center terminal 21 has a contact portion 214 located between the two protruding portions 27 in the lateral direction. The fixed member 40 is located below the flexible substrate 16 in a connected state in which the connector assembly 12 is connected to the flexible substrate 16. In the connected state, the two fixing members 60 are fixed to the two protruding portions 27 respectively while applying a pressure to the flexible substrate 16, whereby the contact portion 214 of the center terminal 21 is pressed against and contacts the signal line 74 of the flexible substrate 16.SELECTED DRAWING: Figure 5
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Description

[Technical field]

[0001] The present invention relates to a connector assembly that includes a coaxial connector for attachment to a coaxial cable. [Background technology]

[0002] For example, Patent Document 1 discloses a coaxial connector that is attached to a coaxial cable.

[0003] Referring to Fig. 20, the coaxial connector 90 of Patent Document 1 is fixed to a housing 94. A substrate (circuit board) 96 is provided inside the housing 94. As can be seen from Fig. 20, the substrate 96 is a rigid circuit board 96 that is not easily bent. A transmission path (signal line) 98 is formed on the circuit board 96. The coaxial connector 90 includes a terminal portion (center terminal) 92. The center terminal 92 is electrically connected to the signal line 98 of the circuit board 96. Such an electrical connection is usually achieved by soldering the center terminal 92 to the signal line 98. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-064588 A Summary of the Invention [Problem to be solved by the invention]

[0005] There is a demand for connecting the coaxial connector 90 to a thin and flexible substrate, instead of a circuit substrate, which is difficult to bend. However, the flexible substrate may be made of a material with low heat resistance. In this case, it is difficult to solder the center terminal of the coaxial connector to the signal line of the flexible substrate. Furthermore, if the center terminal is pressed against the signal line instead of soldering, the flexible substrate bends, and therefore sufficient contact pressure cannot be obtained. As a result, there is a risk of reducing the contact reliability between the center terminal and the signal line.

[0006] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a structure for connecting a coaxial connector to a flexible substrate, the structure having high contact reliability. [Means for solving the problem]

[0007] The present invention provides a first connector assembly, A connector assembly for connection to a flexible substrate, comprising: the flexible substrate extends along a horizontal plane, two through holes are formed in the flexible substrate, each of the through holes penetrates the flexible substrate in a vertical direction perpendicular to the horizontal plane, a signal line is formed on an upper surface of the flexible substrate, the signal line extends in a front-rear direction perpendicular to the vertical direction, and is located between the two through holes in a lateral direction perpendicular to both the vertical direction and the front-rear direction, The connector assembly includes a coaxial connector, a fixed member, and two fixing members, The coaxial connector is attached to a front end of a coaxial cable, The coaxial connector includes an outer terminal, a center terminal, and an insulating member. the insulating member insulates the outer terminal and the central terminal from each other, The outer terminal has an end face and two protrusions, The two protrusions are spaced apart from each other in the lateral direction and protrude forward from the end surface, The central terminal has a contact portion, the contact portion is located between the two protrusions in the lateral direction and extends forward beyond the end surface; The fixed member has a pressed portion, the fixed member is located under the flexible board in a connected state in which the connector assembly is connected to the flexible board, In the connected state, the two fixing members pass through the two through holes of the flexible substrate while pressing the pressed portion of the fixed member against the underside of the portion of the flexible substrate where the signal line is formed, and are fixed to the two protruding portions of the outer terminal, respectively, so that the contact portion of the central terminal is pressed against and comes into contact with the signal line of the flexible substrate. A connector assembly is provided.

[0008] The present invention provides a second connector assembly comprising a first connector assembly, The fixed member has two fixing holes formed therein, Each of the fixing holes penetrates the fixed member in the up-down direction, The pressed portion is located between the two fixing holes in the lateral direction, Each of the fixing members is a screw, Each of the protrusions has a screw hole formed therein, In the connected state, each of the fixing members passes through the fixing hole of the fixed member and the through hole of the flexible board, and is screwed into the screw hole. A connector assembly is provided.

[0009] The present invention provides a third connector assembly, which is the first connector assembly, The fixed member and the two fixing members are integrally formed with each other, Each of the fixing members is a press-fit portion, Each of the protrusions has a press-fit hole formed therein, In the connected state, each of the press-fitted portions passes through the through hole of the flexible substrate and is press-fitted into the press-fit hole. A connector assembly is provided.

[0010] The present invention provides a fourth connector assembly, which is a first connector assembly, The pressed portion is raised upward. A connector assembly is provided.

[0011] The present invention provides a fifth connector assembly, which is a first connector assembly, The contact portion of the central terminal has a sector shape in a plane perpendicular to the front-rear direction. A connector assembly is provided.

[0012] The present invention provides a sixth connector assembly, which is a first connector assembly, The contact portion of the center terminal extends forward and downward in a pre-connection state before the connector assembly is connected to the flexible board. A connector assembly is provided.

[0013] The present invention provides a first structure comprising a connector assembly according to any one of claims 1 to 6 and a flexible printed circuit board, the flexible board is located between the protruding portion and the fixed member in the up-down direction, The signal line of the flexible substrate is pressed from below by the fixed member and is pressed against the contact portion of the center terminal. Provides structure.

[0014] The present invention provides a first structure as a second structure, The flexible substrate has two slits formed therein, the two slits are spaced apart from each other in the lateral direction; Each of the slits extends forward from a rear end of the flexible substrate, the signal line is located between the two slits in the lateral direction and extends in the front-rear direction, The pressed portion of the fixed member is pressed against a portion of the flexible board that corresponds to the signal line in the front-rear direction. Provides structure. Effect of the Invention

[0015] According to the present invention, the center terminal of the coaxial connector can be pressed against the signal line of the flexible substrate to connect it without soldering. When connecting the center terminal to the signal line, the fixing member presses the fixed member against the flexible substrate, thereby suppressing bending of the portion of the flexible substrate located between the center terminal and the signal line, thereby improving the contact reliability between the center terminal and the signal line. In other words, according to the present invention, a structure for connecting a coaxial connector to a flexible substrate and a structure with high contact reliability can be provided. [Brief description of the drawings]

[0016] [Figure 1] 1 is a perspective view of a connector assembly according to an embodiment of the present invention, the connector assembly being in a pre-connection state prior to being connected to a flexible substrate; [Diagram 2] Fig. 2 is a perspective view showing the connector assembly of Fig. 1, in a connected state where the connector assembly is connected to a flexible substrate. [Diagram 3] FIG. 3 is a top view showing the connector assembly of FIG. 2. [Figure 4] 3 is a side view of the connector assembly of FIG 2, with hidden fixing holes, through holes and screw holes outlined in dashed lines; [Diagram 5] 3 is a front view of the connector assembly of FIG 2, with hidden fixing holes, through holes and screw holes outlined in dashed lines; [Figure 6] FIG. 6 is a cross-sectional view of the connector assembly taken along line VI-VI in FIG. 5. A part of the coaxial cable and a part of the mating connector are drawn with dashed lines. A part of the connector assembly (a part surrounded by a dashed line) is drawn on an enlarged scale. In the enlarged view, the outline of the center terminal in a pre-connection state is drawn with a dashed line. [Figure 7] 1. FIG. 4 is a perspective view showing a modified example of the flexible board of FIG. [Figure 8] 2 is a perspective view showing a modification of the connector assembly of FIG 1. The connector assembly is in a pre-connection state. [Figure 9] 9 is a perspective view of the connector assembly of FIG 8, the connector assembly being in a connected state; [Figure 10] 9 is a front view of the connector assembly of FIG. 8, with hidden fixing holes, through holes and screw holes outlined in dashed lines. [Figure 11] 11 is a cross-sectional view showing the connector assembly taken along line XI-XI of FIG. 10. A part of the connector assembly (a part surrounded by a dashed line) is drawn on an enlarged scale. [Figure 12] 11 is a front view showing a part (a part surrounded by a two-dot chain line A) of the connector assembly of FIG 10. The hidden part of the pressed part of the fixed member is drawn by a dashed line. [Figure 13] 2 is a perspective view showing another modified example of the connector assembly of FIG 1. The connector assembly is in a connected state. [Figure 14] Fig. 15 is a front view showing a part of the connector assembly of Fig. 14. The illustrated portion corresponds to the portion depicted in Fig. 12. The hidden portion of the pressed portion of the fixed member is depicted by a dashed line. [Figure 15] 13 is a perspective view showing yet another modified example of the connector assembly of FIG 1. The connector assembly is in a pre-connection state. [Figure 16] FIG 16 is a perspective view of the connector assembly of FIG 15, the connector assembly being in a connected state; [Figure 17] 17 is a side view of the connector assembly of FIG. 16, with the outlines of the hidden pass-through holes and press-fit holes drawn in dashed lines. [Figure 18] 17 is a front view of the connector assembly of FIG. 16, with the outlines of the hidden pass-through holes and press-fit holes drawn in dashed lines. [Figure 19] 19 is a cross-sectional view showing the connector assembly of FIG. 18 taken along line XIX-XIX. [Figure 20] FIG. 1 is a perspective view showing a coaxial connector, a housing, and a substrate disclosed in Patent Document 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Referring to Fig. 1, a structure 10 according to an embodiment of the present invention includes a connector assembly 12 and a flexible substrate 16. The flexible substrate 16 extends along a horizontal plane. As shown in Fig. 2, the connector assembly 12 is connected to the flexible substrate 16. More specifically, the connector assembly 12 is connected to a rear end of the flexible substrate 16 in a front-rear direction parallel to the horizontal plane. The connector assembly 12 in Fig. 2 is in a connected state in which the connector assembly 12 is connected to the flexible substrate 16. On the other hand, the connector assembly 12 in Fig. 1 is in a pre-connection state before the connector assembly 12 is connected to the flexible substrate 16.

[0018] The horizontal plane in this embodiment is the XY plane, and the front-rear direction in this embodiment is the X direction. In this embodiment, "forward" is the +X direction, and "rear" is the -X direction. The terms horizontal plane, front-rear direction, and the like do not indicate an absolute positional relationship with respect to the ground, but merely indicate a relative positional relationship when the plane along which flexible board 16 extends without bending is defined as the horizontal plane, and the position of connector assembly 12 with respect to flexible board 16 is defined as the front.

[0019] 1, the flexible substrate 16 includes a base 70. The base 70 is formed of a thin film-like insulator having a thickness of about 0.1 mm. The illustrated flexible substrate 16 includes only the base 70, excluding various conductive patterns formed on the base 70. In particular, the flexible substrate 16 does not include a member that is difficult to bend, such as a reinforcing plate that reinforces the base 70. For this reason, the flexible substrate 16 bends easily when a force is applied. The flexible substrate 16, which is easy to bend, can be flexibly arranged in a narrow space inside a device (not shown).

[0020] The flexible substrate 16 of this embodiment is thin and flexible overall. However, the present invention is not limited to this. For example, the front end portion (not shown) of the flexible substrate 16 may be reinforced by a reinforcing plate. In other words, only the rear end portion (shown) of the flexible substrate 16 that is connected to the connector assembly 12 may be formed only from the thin and flexible base body 70, excluding various conductive patterns.

[0021] The flexible substrate 16 has an upper surface 70U and a lower surface 70L in the vertical direction perpendicular to the horizontal plane. The upper surface 70U and the lower surface 70L are located at the upper end and the lower end of the base body 70, respectively. The vertical direction in this embodiment is the Z direction. In this embodiment, "upper" is the +Z direction, and "lower" is the -Z direction.

[0022] Two through holes 72 are formed in the flexible substrate 16. Each of the through holes 72 penetrates the flexible substrate 16 in the up-down direction. Each of the through holes 72 has a circular shape in the horizontal plane. As described below, the through holes 72 formed in this manner are used when screwing the connector assembly 12 to the flexible substrate 16. The two through holes 72 are separated from each other in the lateral direction perpendicular to both the front-rear direction and the up-down direction, and are at the same position as each other in the front-rear direction. The lateral direction in this embodiment is the Y direction.

[0023] The through holes 72 in this embodiment are formed as described above. However, the present invention is not limited to this. For example, the shape of each of the through holes 72 is not particularly limited. The number of the through holes 72 may be three or more. In this case, two of the through holes 72 may be separated from each other in the lateral direction, or may be located at the same position as each other in the front-rear direction.

[0024] A signal line 74, which is a conductive pattern, is formed on the upper surface 70U of the flexible substrate 16. The signal line 74 extends in the front-rear direction and is located between the two through holes 72 in the lateral direction. On the other hand, a ground layer (not shown), which is a conductive pattern, is formed on the lower surface 70L of the flexible substrate 16 so as to cover the entire lower surface 70L.

[0025] 2, the signal line 74 is connected to, for example, an antenna formed at the front end (not shown) of the flexible substrate 16. In this case, the connector assembly 12 in the connected state transmits a signal to the antenna via the signal line 74. The transmitted signal is transmitted from the antenna. Also, a signal received by the antenna is transmitted to the connector assembly 12 via the signal line 74. The structure 10 of this embodiment is used, for example, as described above. However, the use of the structure 10 in the present invention is not particularly limited.

[0026] The flexible substrate 16 of the present embodiment has the above-mentioned structure. However, the structure of the flexible substrate 16 can be modified depending on the application of the structure 10. For example, a ground layer (not shown) may be partially formed on the lower surface 70L.

[0027] 1, the connector assembly 12 of the present embodiment includes a coaxial connector 20, a metal fixed member 40, and two metal fixing members (screws) 60. The connector assembly 12 of the present embodiment includes only the above-mentioned members. However, the present invention is not limited to this. For example, the connector assembly 12 may further include other members in addition to the above-mentioned members.

[0028] The coaxial connector 20, the fixed member 40, and the fixing member 60 of this embodiment will be described below in this order.

[0029] 6, the coaxial connector 20 of the present embodiment is attached to the front end of a coaxial cable 80. The coaxial connector 20 of the present embodiment is a so-called SMA (Sub Miniature Type A) connector. However, the present invention is not limited to this and can be applied to various coaxial connectors 20.

[0030] The coaxial cable 80 shown by the broken line is a typical coaxial cable, and includes a core wire 82 made of a conductor, an inner insulator 84 made of an insulator and covering the core wire 82, a shield 86 made of a conductor and covering the inner insulator 84, and an outer jacket 88 made of an insulator and covering the shield 86. The number of core wires 82 in this embodiment is one. Except for the fact that the number of core wires 82 is one, the structure of the coaxial connector 20 is not particularly limited. For example, the shield 86 may be a braid formed from thin metal wires or may be formed from a metal foil. For example, the coaxial cable 80 may be attached to the rear end of the coaxial connector 20 via a mating connector 89 attached to the coaxial cable 80.

[0031] 6 together with FIG. 1, the coaxial connector 20 of the present embodiment includes a center terminal 21 made of a conductor, an insulating member 22 made of an insulator, and an outer terminal 24 made of a conductor. The coaxial connector 20 of the present embodiment includes only the above-mentioned members. However, the present invention is not limited to this. For example, the coaxial connector 20 may further include other members in addition to the above-mentioned members.

[0032] As shown in FIG. 6, the central terminal 21 of this embodiment extends along the front-rear direction and has a main body 212, a contact portion 214, and a connection portion 218. The main body 212 is an intermediate portion of the central terminal 21 in the front-rear direction. The contact portion 214 extends forward from the main body 212. The connection portion 218 has a socket shape and extends rearward from the main body 212. When the coaxial connector 20 is attached to the coaxial cable 80, the central terminal 21 is electrically connected to the core wire 82 of the coaxial cable 80. More specifically, the connection portion 218 of the central terminal 21 is electrically connected to the core wire 82. The central terminal 21 and the core wire 82, which are connected to each other, transmit signals between each other.

[0033] The central terminal 21 of the present embodiment has the above-described structure. However, as long as the central terminal 21 has the contact portion 214 extending along the front-rear direction, the structure of the central terminal 21 can be modified as necessary.

[0034] The insulating member 22 of the present embodiment includes a front insulating member 222 and a rear insulating member 224. The front insulating member 222 is combined with the rear insulating member 224 and is located in front of the rear insulating member 224. The insulating member 22 of the present embodiment is made up of the above-mentioned two members. However, the present invention is not limited to this. For example, the front insulating member 222 and the rear insulating member 224 may be integral members.

[0035] 1 and 6, the outer terminal 24 of the present embodiment includes a front conductive member 242 and a rear conductive member 244. The front conductive member 242 is combined with the rear conductive member 244 and is located in front of the rear conductive member 244. The front conductive member 242 is in contact with the rear conductive member 244. The outer terminal 24 of the present embodiment is composed of the above-mentioned two members. However, the present invention is not limited to this. For example, the front conductive member 242 and the rear conductive member 244 may be integral members.

[0036] 6, when the coaxial connector 20 is attached to the coaxial cable 80, the outer terminal 24 is electrically connected to the shield 86 of the coaxial cable 80. For example, the rear conductive member 244 of the outer terminal 24 is electrically connected to the shield 86. The outer terminal 24 and the shield 86, which are connected to each other, have the same ground potential.

[0037] The insulating member 22 surrounds the main body 212 and the connecting portion 218 of the center terminal 21 in a vertical plane (YZ plane) perpendicular to the front-rear direction, except for the front end of the main body 212. The outer terminal 24 surrounds the front end of the main body 212 at a distance in the YZ plane, and surrounds the insulating member 22 in the YZ plane. That is, the insulating member 22 is located between the center terminal 21 and the outer terminal 24 in the YZ plane. That is, the insulating member 22 insulates the outer terminal 24 and the center terminal 21 from each other. The center terminal 21, the insulating member 22, and the outer terminal 24 of this embodiment are arranged as described above. However, as long as the outer terminal 24 and the center terminal 21 are insulated from each other by the insulating member 22, the arrangement of the center terminal 21, the insulating member 22, and the outer terminal 24 is not particularly limited.

[0038] As shown in FIG. 1, FIG. 3, and FIG. 5, the outer terminal 24 has an end surface 26 and two protrusions 27. The end surface 26 in this embodiment is the front surface of the front conductive member 242, and is a circular plane parallel to the YZ plane. The two protrusions 27 are separated from each other in the lateral direction and protrude forward from the end surface 26. The two protrusions 27 in this embodiment have a mirror-symmetric shape with respect to a predetermined plane (XZ plane). That is, the two protrusions 27 are at the same position in the up-down direction. Each of the protrusions 27 has a rectangular flat plate shape parallel to the horizontal plane, and has an upper surface 27U and an upper surface 27U. Each of the upper surfaces 27U and 27U is a plane parallel to the horizontal plane.

[0039] As shown in Figs. 1 and 5, a central hole 29 is formed in the outer terminal 24 of this embodiment. The central hole 29 has a circular shape in the YZ plane and opens forward at the center of the end face 26 in the YZ plane. The two protrusions 27 are located on both sides of the end face 26 in the lateral direction, with the central hole 29 therebetween. The central terminal 21 is located at the center of the central hole 29 in the YZ plane. The main body 212 of the central terminal 21 has a circular shape in the YZ plane. The contact portion 214 of the central terminal 21 has a circular shape smaller than that of the main body 212 in the YZ plane.

[0040] 6, the central hole 29 extends in the front-rear direction from the end face 26 to the front end of the front insulating member 222. The front end of the body portion 212 of the central terminal 21 is located inside the central hole 29. The contact portion 214 of the central terminal 21 is located in front of the end face 26. In other words, referring to FIG. 3, the contact portion 214 is located between the two protrusions 27 in the lateral direction and extends forward beyond the end face 26.

[0041] In this embodiment, the end surface 26, the protruding portion 27, and the contact portion 214 have the above-mentioned structure and are arranged as described above. However, the present invention is not limited to this, and the structure and arrangement of the end surface 26, the protruding portion 27, and the contact portion 214 can be modified as necessary.

[0042] As shown in FIG. 1, a screw hole 28 is formed in each of the protruding portions 27 in this embodiment. Each of the screw holes 28 in this embodiment penetrates the protruding portion 27 in the up-down direction. The screw holes 28 are provided at positions corresponding to the passage holes 72 of the flexible substrate 16 in the horizontal plane. That is, the two screw holes 28 are separated from each other in the lateral direction and are at the same position as each other in the front-rear direction. The number of screw holes 28 in this embodiment is two. However, the present invention is not limited to this. For example, two or more screw holes 28 may be formed in each of the protruding portions 27. Each of the screw holes 28 may be a hole with a ceiling.

[0043] The fixed member 40 in this embodiment has a rectangular flat plate shape parallel to a horizontal plane. More specifically, the fixed member 40 has long sides extending laterally and short sides extending in the front-rear direction on the horizontal plane. The fixed member 40 has an upper surface 40U and a lower surface 40L. Each of the upper surface 40U and the lower surface 40L in this embodiment is a flat surface parallel to the horizontal plane.

[0044] The fixed member 40 has a pressed portion 42. As described below, the pressed portion 42 is a portion that is pressed against the flexible board 16 in the connected state (see FIG. 5). According to the present embodiment, a middle portion in the lateral direction of the upper surface 40U mainly functions as the pressed portion 42.

[0045] The fixed member 40 of this embodiment has two fixing holes 45 formed therein. Each of the fixing holes 45 penetrates the fixed member 40 in the up-down direction. Each of the fixing holes 45 has a circular shape in the horizontal plane. The fixing holes 45 are provided at positions corresponding to the passage holes 72 of the flexible substrate 16 in the horizontal plane. That is, the two fixing holes 45 are separated from each other in the lateral direction and are in the same position as each other in the front-rear direction.

[0046] The fixed member 40 of the present embodiment has the above-mentioned structure. However, the present invention is not limited to this. For example, the shape of each of the fixing holes 45 is not particularly limited. Furthermore, the number of fixing holes 45 may be three or more.

[0047] The two fixing members 60 in this embodiment have the same shape. More specifically, each of the fixing members 60 in this embodiment is a screw 60. That is, each of the fixing members 60 is threaded (not shown). The fixing members 60 are provided corresponding to the respective passing holes 72 of the flexible substrate 16. That is, the number of fixing members 60 in this embodiment is two. However, the present invention is not limited to this. For example, three or more fixing members 60 having different shapes may be provided.

[0048] 1, the connector assembly 12 of the present embodiment is connected to the flexible substrate 16 by the connection method described below. The connection method described below is merely an example and can be modified as necessary.

[0049] First, the coaxial connector 20, the flexible board 16, and the fixed member 40 are arranged in this order from above while the screw holes 28 of the coaxial connector 20, the passing holes 72 of the flexible board 16, and the fixing holes 45 of the fixed member 40 are arranged at the same positions relative to one another on the horizontal plane. Next, each of the fixing members 60 is screwed into the screw holes 28 through the fixing holes 45 and the passing holes 72.

[0050] 4 and 5, as a result of the above-mentioned screwing, the flexible substrate 16 is sandwiched in the vertical direction between the lower surfaces 27L of the two protrusions 27 of the coaxial connector 20 and the upper surface 40U of the fixed member 40. Referring to FIG. 3, at this time, the connector assembly 12 is in a connected state (the state shown in FIGS. 2 to 6), and the contact portion 214 of the center terminal 21 is located directly above the signal line 74 of the flexible substrate 16.

[0051] Referring to FIG. 5, the fixed member 40 is located below the flexible substrate 16 in the connected state. In the connected state, the heads of the fixing members 60 are pressed against the lower surface 40L of the fixed member 40, which is parallel to the horizontal plane, and press the fixed member 40 upward. The upper surface 40U of the fixed member 40, which is parallel to the horizontal plane, presses the flexible substrate 16 against the lower surface 27L of the protruding portion 27, which is parallel to the horizontal plane. As a result, the flexible substrate 16 is sandwiched between the protruding portion 27 and the fixed member 40 while maintaining a state of extending parallel to the horizontal plane. In particular, the pressed portion 42 of the fixed member 40 is pressed against a contact area of ​​the flexible substrate 16 located below the contact portion 214 of the central terminal 21, and supports the contact area from below. The contact area of ​​the flexible substrate 16 supported in this manner does not bend even when a force is applied from above.

[0052] 3 and 5, the contact portion 214 of the central terminal 21 contacts the signal line 74 of the flexible substrate 16 in the connected state. In detail, referring to FIG. 6, the contact portion 214 of the central terminal 21 in this embodiment is bent downward, for example, after the coaxial connector 20 is assembled. As a result, the contact portion 214 extends forward and downward in the pre-connection state (state of FIG. 1). The lower end of the contact portion 214 is located below the lower surface 27L of the protrusion 27 in the pre-connection state. The contact portion 214 thus formed hits the signal line 74 of the flexible substrate 16 in the connected state (state of FIG. 6) and elastically deforms. The contact portion 214 is pressed from above against the signal line 74 supported so as not to bend, by a restoring force generated by the elastic deformation.

[0053] To summarize the above explanation, in the connected state, the two fixing members 60 press the pressed portion 42 of the fixed member 40 against the underside 70L of the portion of the flexible substrate 16 where the signal line 74 is formed, while passing through the two through holes 72 of the flexible substrate 16 and being fixed to the two protrusions 27 of the outer terminal 24, respectively, so that the contact portion 214 of the central terminal 21 is pressed against and comes into contact with the signal line 74 of the flexible substrate 16.

[0054] As can be understood from the above mechanism, according to this embodiment, the center terminal 21 of the coaxial connector 20 can be pressed against and connected to the signal line 74 of the flexible substrate 16 without soldering. When connecting the center terminal 21 to the signal line 74, the fixing member 60 presses the fixed member 40 against the flexible substrate 16, thereby suppressing bending of a portion of the flexible substrate 16 located between the center terminal 21 and the signal line 74, thereby improving the contact reliability between the center terminal 21 and the signal line 74. That is, according to this embodiment, a structure for connecting the coaxial connector 20 to the flexible substrate 16 can be provided that has high contact reliability.

[0055] According to this embodiment, the pressed portion 42 of the fixed member 40 is located between the two fixing holes 45 in the horizontal direction. Also, as described above, each of the fixing members 60, in the connected state, passes through the fixing hole 45 of the fixed member 40 and the through hole 72 of the flexible board 16 and is screwed into the screw hole 28. According to this connection method, the pressed portion 42 can be stably pressed against the flexible board 16 in a simple manner. That is, the contact reliability between the center terminal 21 and the signal line 74 can be further improved. However, the present invention is not limited to this, and the connection method of the connector assembly 12 can be modified as necessary.

[0056] 4, in a connected state, the outer terminal 24 is grounded to a ground layer (not shown) on the lower surface 70L of the flexible substrate 16 via the protruding portion 27, the fixing member 60, and the fixed member 40. However, the present invention is not limited to this. For example, referring to FIG. 7 together with FIG. 1, a flexible substrate 16X may be used instead of the flexible substrate 16.

[0057] The flexible substrate 16X according to the modified example has two lands 76X, which are conductive patterns not provided in the flexible substrate 16. The two through holes 72 penetrate the lands 76X, respectively. A plurality of via holes 77X are formed in each of the lands 76X. Each of the via holes 77X penetrates the base 70 and the lands 76X in the vertical direction, and thus each of the lands 76X is electrically connected to a ground layer (not shown) on the lower surface 70L. Referring to FIG. 7 together with FIG. 4, by using the flexible substrate 16X, the outer terminal 24 in the connected state can be grounded to the ground layer of the flexible substrate 16X via the protrusion 27 and the lands 76X.

[0058] 5, the connector assembly 12 is connected to a flexible substrate 16 to form a structure 10. The flexible substrate 16 of the structure 10 is located between the protrusion 27 of the outer terminal 24 and the fixed member 40 in the up-down direction. In addition, the signal line 74 of the flexible substrate 16 is pressed from below by the fixed member 40 and is pressed against the contact portion 214 of the central terminal 21.

[0059] In addition to the various modifications already described, the structure 10 of this embodiment can be modified in many other ways. Below, three modifications of the structure 10 will be described, focusing on the differences from the structure 10.

[0060] Comparing Fig. 8 with Fig. 1, structure 10A according to the first modified example includes connector assembly 12A different from connector assembly 12, and flexible substrate 16A different from flexible substrate 16. Comparing Fig. 9 with Fig. 2, connector assembly 12A, like connector assembly 12, is connected to flexible substrate 16A.

[0061] Comparing FIG. 8 with FIG. 1, the flexible substrate 16A has a similar structure to the flexible substrate 16. For example, the flexible substrate 16A extends along a horizontal plane (XY plane). Two through holes 72 are formed in the flexible substrate 16A. Each of the through holes 72 penetrates the flexible substrate 16A in the up-down direction (Z direction). A signal line 74 is formed on the upper surface 70U of the flexible substrate 16A. The signal line 74 extends in the front-rear direction (X direction) and is located between the two through holes 72 in the lateral direction (Y direction).

[0062] On the other hand, two slits 78A that are not formed in the flexible substrate 16 are formed in the flexible substrate 16A. Each of the slits 78A is a groove that penetrates the flexible substrate 16A in the up-down direction. The two slits 78A are separated from each other in the lateral direction. Each of the slits 78A extends forward from the rear end of the flexible substrate 16A. The signal line 74 is located between the two slits 78A in the lateral direction and extends in the front-rear direction.

[0063] The flexible substrate 16A has a flexible portion 79A. The flexible portion 79A is a portion of the flexible substrate 16A that is located between the two slits 78A in the horizontal direction. The flexible portion 79A thus arranged is easy to bend. The flexible portion 79A extends forward from the rear end of the flexible substrate 16A. The signal line 74 is located in the middle of the flexible portion 79A in the horizontal direction.

[0064] The connector assembly 12A includes a coaxial connector 20A different from the coaxial connector 20, a fixed member 40A different from the fixed member 40, and the same two fixing members 60 as the connector assembly 12. That is, each of the fixing members 60 is a screw 60.

[0065] The coaxial connector 20A has the same structure as the coaxial connector 20, except that it has a center terminal 21A that is different from the center terminal 21. The center terminal 21A has the same structure as the center terminal 21, except that it has a contact portion 214A that is different from the contact portion 214.

[0066] Referring to FIG. 11 together with FIG. 6, the coaxial connector 20A is attached to the front end of the coaxial cable 80. Referring to FIG. 11, the coaxial connector 20A includes an outer terminal 24, a center terminal 21A, and an insulating member 22. The insulating member 22 insulates the outer terminal 24 and the center terminal 21A from each other. As shown in FIG. 8, the outer terminal 24 has an end face 26 and two protrusions 27. The two protrusions 27 are separated from each other in the lateral direction and protrude forward from the end face 26. A screw hole 28 is formed in each of the protrusions 27. The contact portion 214A of the center terminal 21A is located between the two protrusions 27 in the lateral direction and extends forward beyond the end face 26.

[0067] 10 and 12, the contact portion 214A of the central terminal 21A has a sector shape in the YZ plane perpendicular to the front-rear direction. The structure of the contact portion 214A differs from the contact portion 214 of the central terminal 21 (see FIG. 5) in the above-mentioned features. More specifically, the upper portion of the contact portion 214A has an arc shape protruding upward, and the lower portion of the contact portion 214A has a triangular shape protruding downward. That is, the lower end of the contact portion 214A protrudes downward. Referring to FIG. 11, the lower end of the contact portion 214A is located slightly above the lower surface 27L of the protrusion 27 in a pre-connection state (the state of FIG. 8) before the connector assembly 12A is connected to the flexible board 16A.

[0068] Referring to FIG. 8, the fixed member 40A is a metal piece having a bend. The fixed member 40A has a connecting portion 41A, a pressed portion 42A, and two side portions 44A. The fixed member 40A also has an upper surface 40U and a lower surface 40L. Each of the side portions 44A has a rectangular flat plate shape parallel to the horizontal plane. That is, each of the upper surface 40U and the lower surface 40L of each of the side portions 44A is a plane parallel to the horizontal plane. The two side portions 44A are located on both sides of the fixed member 40A in the lateral direction. The connecting portion 41A connects the two side portions 44A to each other in the lateral direction.

[0069] According to this modification, the lateral middle portion of the upper surface 40U of the connecting portion 41A functions as the pressed portion 42A. The pressed portion 42A protrudes upward. More specifically, the pressed portion 42A has an arc shape that protrudes upward in the YZ plane. The upper end of the pressed portion 42A is located above the upper surface 40U of the side portion 44A.

[0070] Comparing Fig. 8 with Fig. 1, fixing holes 45A are formed in each of the side portions 44A. That is, two fixing holes 45A are formed in the fixed member 40A. Fixing holes 45A have the same structure as fixing holes 45, except that fixing holes 45A are smaller in size in the vertical direction than fixing holes 45, and are arranged in the same manner as fixing holes 45. For example, each of fixing holes 45A penetrates fixed member 40A in the vertical direction. Fixing holes 45A are provided at positions corresponding to passage holes 72 of flexible substrate 16A in the horizontal plane.

[0071] 10 and 11 in conjunction with FIG. 12, the connector assembly 12A is connected to the flexible board 16A by a screw-in connection method using screws 60, similar to the connector assembly 12 (see FIG. 2).

[0072] In a connected state in which the connector assembly 12A is connected to the flexible substrate 16A, the fixed member 40A is located below the flexible substrate 16A. In the connected state, the two fixing members 60 press the pressed portion 42A of the fixed member 40A against the lower surface 70L of the flexible substrate 16A at a portion where the signal line 74 is formed, while passing through the two through holes 72 of the flexible substrate 16A and being fixed to the two protrusions 27 of the outer terminal 24, respectively, so that the contact portion 214A of the center terminal 21A is pressed against and comes into contact with the signal line 74 of the flexible substrate 16A.

[0073] 12 together with FIG. 8, the upper end of the pressed portion 42A of this modification is pressed against the lower surface 70L of the flexible portion 79A of the flexible substrate 16A at the portion where the signal line 74 is formed, in the connected state. When the flexible portion 79A receives an upward force from the pressed portion 42A, it bends so as to protrude upward. As a result, the signal line 74 formed on the flexible portion 79A moves upward. At this time, the pressed portion 42A is elastically deformed downward. The signal line 74 that has moved upward is pressed against the contact portion 214A of the center terminal 21A of the coaxial connector 20A. According to this modification, as in the above-described embodiment, a structure for connecting the coaxial connector 20A to the flexible substrate 16A and a structure with high contact reliability can be provided.

[0074] According to this modification, the lower end of the fan-shaped contact portion 214A of the central terminal 21A protruding downward is pressed against the signal line 74 that has moved upward. Therefore, the contact reliability between the central terminal 21A and the signal line 74 can be improved without bending the contact portion 214A downward. Furthermore, when combining the front conductive member 242 of the outer terminal 24 with the rear conductive member 244, even if the front conductive member 242 rotates beyond a designed position on the YZ plane within a predetermined angle range, the fan-shaped contact portion 214A reliably contacts the signal line 74. However, the present invention is not limited to this. For example, the contact portion 214A may extend forward and downward in the pre-connection state (the state of FIG. 8).

[0075] 10, according to this modification, pressed portion 42A of fixed member 40A is located between two fixing holes 45A in the horizontal direction, similar to the embodiment described above. Also, each of fixing members 60, in the connected state, passes through fixing hole 45A of fixed member 40A and through hole 72 of flexible substrate 16A, and is screwed into screw hole 28 of protruding portion 27, similar to the embodiment described above. According to this connection method, pressed portion 42A can be stably pressed against flexible substrate 16A in a simple manner.

[0076] The connector assembly 12A is connected to a flexible substrate 16A to form a structure 10A. The flexible substrate 16A of the structure 10A is located between the protrusion 27 of the outer terminal 24 and the fixed member 40A in the up-down direction. The pressed portion 42A protruding upward of the fixed member 40A is pressed against a portion of the flexible substrate 16A that corresponds to the signal line 74 in the front-rear direction. As a result, the signal line 74 of the flexible substrate 16A is pressed from below by the fixed member 40A and pressed against the contact portion 214A of the center terminal 21A.

[0077] According to this modification, the size of the fixed member 40A in the vertical direction can be reduced. That is, according to this modification, the height of the structure 10A can be reduced and the contact reliability between the center terminal 21A and the signal line 74 can be improved.

[0078] 1 together with FIG. 8, the structure 10 of the embodiment described above may also include a flexible substrate 16A instead of the flexible substrate 16. However, unless an upwardly protruding pressed portion 42A like the fixed member 40A is provided, no particular effect can be obtained. That is, when a flexible portion 79A like the flexible substrate 16A is provided, it is preferable to provide an upwardly protruding pressed portion 42A. When an upwardly protruding pressed portion 42A is provided, it is preferable to provide a flexible portion 79A.

[0079] Comparing Fig. 13 and Fig. 14 with Fig. 9 and Fig. 12, the structure 10B according to the second modification includes a connector assembly 12B different from the connector assembly 12A and the same flexible substrate 16A as the structure 10A. The connector assembly 12B includes a coaxial connector 20B different from the coaxial connector 20A, and includes a fixed member 40A and two fixing members 60 that are the same as the connector assembly 12A. The coaxial connector 20B has the same structure as the coaxial connector 20A, except that it includes a center terminal 21B different from the center terminal 21A of the coaxial connector 20A. The center terminal 21B has the same structure as the center terminal 21A, except that it includes a contact portion 214B different from the contact portion 214A of the center terminal 21A.

[0080] 13 and 14, the contact portion 214B has a cylindrical shape extending in the front-rear direction. That is, the contact portion 214B has a circular shape in the YZ plane perpendicular to the front-rear direction. The connector assembly 12B according to this modification is connected to the flexible board 16B by the same connection method as the connector assembly 12A (see FIG. 9). According to this modification, as in the first modification, a structure for connecting the coaxial connector 20B to the flexible board 16B and a structure with high contact reliability can be provided.

[0081] According to this modification, similarly to the first modification, it is possible to improve the contact reliability between the center terminal 21B and the signal wire 74 without bending the contact portion 214B downward. Furthermore, even if the front conductive member 242 rotates beyond a designed position in the YZ plane when combining the front conductive member 242 with the rear conductive member 244 of the outer terminal 24, the cylindrical contact portion 214B reliably contacts the signal wire 74. That is, by providing the simple cylindrical contact portion 214B, it is possible to easily manufacture the structure 10B while reducing the height of the structure 10B.

[0082] Comparing Fig. 15 with Fig. 1, structure 10C according to the third modified example includes connector assembly 12C that is different from connector assembly 12, and flexible substrate 16 that is the same as structure 10. Comparing Fig. 16 with Fig. 2, connector assembly 12C is connected to flexible substrate 16, similar to connector assembly 12.

[0083] Comparing FIG. 15 with FIG. 1, the connector assembly 12C includes a coaxial connector 20C different from the coaxial connector 20, and a connecting member 40C that the connector assembly 12 does not include. The connecting member 40C is a metal plate having a bend. According to this modification, a predetermined portion of the connecting member 40C functions as a fixed member 41C, and the other two portions of the connecting member 40C function as a fixing member 46C. That is, the connector assembly 12C includes a coaxial connector 20C different from the coaxial connector 20, a fixed member 41C different from the fixed member 40, and two fixing members 46C different from the fixing member 60. Each of the fixed member 41C and the fixing member 46C of this modification is a part of the connecting member 40C. That is, the fixed member 41C and the two fixing members 46C are integrally formed with each other.

[0084] Coaxial connector 20C has the same structure as coaxial connector 20, except that it includes outer terminal 24C that is different from outer terminal 24. Outer terminal 24C has the same structure as outer terminal 24, except that it includes front conductive member 242C that is different from front conductive member 242. Front conductive member 242C has the same structure as front conductive member 242, except that it includes protrusion 27C that is different from protrusion 27.

[0085] Referring to Fig. 19 together with Fig. 6, the coaxial connector 20C is attached to the front end of the coaxial cable 80. Referring to Fig. 19, the coaxial connector 20C includes an outer terminal 24C, a center terminal 21, and an insulating member 22. The insulating member 22 insulates the outer terminal 24C and the center terminal 21 from each other. As shown in Fig. 15, the outer terminal 24C has an end face 26 and two protrusions 27C. The two protrusions 27C are spaced apart from each other in the lateral direction and protrude forward from the end face 26.

[0086] Each of the protrusions 27C has a press-fit hole 28C. The coaxial connector 20C has the same structure as the coaxial connector 20, except that the press-fit hole 28C is formed instead of the screw hole 28. Each of the press-fit holes 28C of this modification penetrates the protrusion 27C in the up-down direction. The press-fit holes 28C are provided at positions corresponding to the passage holes 72 of the flexible substrate 16 on the horizontal plane. That is, the two press-fit holes 28C are separated from each other in the lateral direction and are at the same positions as each other in the front-rear direction. The number of the press-fit holes 28C of this modification is two. However, the present invention is not limited to this. For example, two or more press-fit holes 28C may be formed in each of the protrusions 27C. Each of the press-fit holes 28C may be a hole with a ceiling.

[0087] The central terminal 21 has a contact portion 214. The contact portion 214 is located between the two protruding portions 27C in the lateral direction and extends forward beyond the end face 26. More specifically, the contact portion 214 extends forward and downward in a pre-connection state (the state in FIG. 15 ) before the connector assembly 12C is connected to the flexible substrate 16.

[0088] The connection member 40C has a coupling portion (fixed member) 41C, a pressed portion 42C, two arcuate portions 43C, and two press-fit portions (fixed members) 46C. According to this modification, the coupling portion 41C functions as the fixed member 41C, and each of the press-fit portions 46C functions as a fixing member 46C. In other words, the fixed member 41C of this modification is the coupling portion 41C, and each of the fixing members 46C of this modification is a press-fit portion 46C.

[0089] The two press-fitted portions 46C are located on both sides of the connecting member 40C in the lateral direction. The connecting portion 41C connects the two press-fitted portions 46C to each other in the lateral direction. More specifically, each of the press-fitted portions 46C is connected to the connecting portion 41C via an arc portion 43C. Each of the arc portions 43C has an arc shape that protrudes downward in the YZ plane.

[0090] The connecting portion 41C extends along a horizontal plane and has an upper surface 40U and a lower surface 40L that are planes parallel to the horizontal plane. According to this modification, a middle portion in the lateral direction of the upper surface 40U of the connecting portion 41C mainly functions as a pressed portion 42C.

[0091] Each of the press-fitted portions 46C extends upward beyond the connecting portion 41C. A hole 48C is formed in each of the press-fitted portions 46C. Each of the hole 48C extends in the up-down direction and penetrates the press-fitted portion 46C in the lateral direction. When each of the press-fitted portions 46C in which the hole 48C is formed receives a force along the front-rear direction, it elastically deforms so as to be partially compressed in the front-rear direction. In each of the elastically deformed press-fitted portions 46C, a force directed outward in the front-rear direction is generated due to a restoring force.

[0092] Comparing Figure 17 with Figure 4, connector assembly 12C is connected to flexible board 16 by a press-fit connection method using press-fit portion 46C, rather than the screw-in connection method using screws 60 in connector assembly 12.

[0093] Specifically, when the connector assembly 12C is connected to the flexible substrate 16, each of the press-fitted portions 46C passes through the through holes 72 of the flexible substrate 16 and is inserted into the press-fitting holes 28C of the coaxial connector 20C. The size of each of the press-fitting holes 28C in the front-rear direction is smaller than the size of each of the press-fitted portions 46C in the front-rear direction. Therefore, each of the press-fitted portions 46C is inserted into the press-fitting holes 28C while being compressed in the front-rear direction. The press-fitted portions 46C inserted into each of the press-fitting holes 28C are pressed against the inner wall surfaces of the press-fitting holes 28C by a restoring force. As a result, the connection member 40C is fixed to the coaxial connector 20C, and the connector assembly 12C is connected to the flexible substrate 16.

[0094] 18, in a connected state in which connector assembly 12C is connected to flexible substrate 16, fixed member 41C of connecting member 40C is located below flexible substrate 16. In the connected state, two fixing members 46C of connecting member 40C press pressed portion 42C of fixed member 41C against underside 70L of flexible substrate 16 at a portion where signal line 74 is formed, while passing through two through holes 72 of flexible substrate 16 and being fixed to two protruding portions 27C of outer terminal 24C, respectively, so that contact portion 214 of center terminal 21 is pressed against and comes into contact with signal line 74 of flexible substrate 16.

[0095] According to this modification, similarly to the above-described embodiment, a structure for connecting the coaxial connector 20C to the flexible substrate 16 can be provided, which has high contact reliability.

[0096] According to this modification, in the connected state, each of the press-fitted portions 46C passes through the through holes 72 of the flexible substrate 16 and is press-fitted into the press-fit holes 28C. A connection method using press-fitting can be performed easily and in a short time compared to a connection method using screwing.

[0097] When the press-fitted portion 46C is press-fitted into the press-fitting hole 28C, the two arcuate portions 43C are pressed upward, whereby the pressed portion 42C receives an upward force. This structure can further improve the contact reliability between the center terminal 21 and the signal line 74. However, the present invention is not limited to this. For example, the arcuate portions 43C may be provided as necessary.

[0098] The connector assembly 12C is connected to a flexible substrate 16 to form a structure 10C. The flexible substrate 16 of the structure 10C is located between the protrusion 27C of the outer terminal 24C and the fixed member 41C in the up-down direction. The signal line 74 of the flexible substrate 16 is pressed against the contact portion 214 of the center terminal 21 by the fixed member 41C applying pressure from below.

[0099] 15 together with FIG. 8, structure 10C may include flexible substrate 16A instead of flexible substrate 16. However, unless a pressed portion 42A that protrudes upward like fixed member 40A is provided, no particular effect can be obtained.

[0100] Although the embodiment and various modified examples have been described above, the above-described embodiment and modified examples can be further modified in various ways and can be combined in various ways. [Explanation of symbols]

[0101] 10,10A,10B,10C structure 12, 12A, 12B, 12C Connector Assembly 16, 16A, 16X Flexible Board 20, 20A, 20B, 20C coaxial connectors 21,21A,21B Center terminal 212 Main body 214,214A,214B Contact part 218 Connection 22 Insulating materials 222 Front insulating member 224 Rear insulating member 24,24C outer terminal 242,242C Front conductive member 244 Rear conductive member 26 End face 27,27C Protrusion 27U top 27L bottom surface 28 screw holes 28C press-fit hole 29 Center hole 40,40A Fixed member 40C Connection parts 40U top 40L bottom 41A Connection part 41C Connecting part (fixed member) 42,42A,42C Pressed part 43C Arc section 44A Side 45,45A fixed hole 46C Press-fit part (fixing member) 48C Hole 60 Fixing material (screw) 70 Substrate 70U top 70L bottom surface 72 Passing hole 74 Signal Line 76X Land 77X Via Hole 78A Slit 79A Flexible part 80 Coaxial Cable 82 Core Wire 84 Inner Insulation 86 Shield 88 Outer cover 89 Mating Connector

Claims

1. A connector assembly for connection to a flexible substrate, comprising: the flexible substrate extends along a horizontal plane, two through holes are formed in the flexible substrate, each of the through holes penetrating the flexible substrate in a vertical direction perpendicular to the horizontal plane, a signal line is formed on an upper surface of the flexible substrate, the signal line extends in a front-rear direction perpendicular to the vertical direction, and is located between the two through holes in a lateral direction perpendicular to both the vertical direction and the front-rear direction, The connector assembly includes a coaxial connector, a fixed member, and two fixing members, The coaxial connector is attached to a front end of a coaxial cable, The coaxial connector includes an outer terminal, a center terminal, and an insulating member. the insulating member insulates the outer terminal and the central terminal from each other, The outer terminal has an end face and two protrusions, the two protrusions are spaced apart from each other in the lateral direction and protrude forward from the end surface; The central terminal has a contact portion, the contact portion is located between the two protruding portions in the lateral direction and extends forward beyond the end surface; The fixed member has a pressed portion, the fixed member is located under the flexible board in a connected state in which the connector assembly is connected to the flexible board, In the connected state, the two fixing members pass through the two through holes of the flexible substrate while pressing the pressed portion of the fixed member against the underside of the portion of the flexible substrate where the signal line is formed, and are fixed to the two protruding portions of the outer terminal, respectively, so that the contact portion of the central terminal is pressed against and comes into contact with the signal line of the flexible substrate. Connector assembly.

2. 2. The connector assembly of claim 1, The fixed member has two fixing holes formed therein, Each of the fixing holes penetrates the fixed member in the up-down direction, The pressed portion is located between the two fixing holes in the lateral direction, Each of the fixing members is a screw, Each of the protrusions has a screw hole formed therein, In the connected state, each of the fixing members passes through the fixing hole of the fixed member and the through hole of the flexible board, and is screwed into the screw hole. Connector assembly.

3. 2. The connector assembly of claim 1, The fixed member and the two fixing members are integrally formed with each other, Each of the fixing members is a press-fit portion, Each of the protrusions has a press-fit hole formed therein, In the connected state, each of the press-fitted portions passes through the through hole of the flexible substrate and is press-fitted into the press-fit hole. Connector assembly.

4. 2. The connector assembly of claim 1, The pressed portion is raised upward. Connector assembly.

5. 2. The connector assembly of claim 1, The contact portion of the central terminal has a sector shape in a plane perpendicular to the front-rear direction. Connector assembly.

6. 2. The connector assembly of claim 1, The contact portion of the center terminal extends forward and downward in a pre-connection state before the connector assembly is connected to the flexible board. Connector assembly.

7. A structure comprising the connector assembly according to any one of claims 1 to 6 and a flexible substrate, the flexible board is located between the protruding portion and the fixed member in the up-down direction, The signal line of the flexible substrate is pressed from below by the fixed member and is pressed against the contact portion of the center terminal. structure.

8. 8. The structure of claim 7, The flexible substrate has two slits formed therein, the two slits are spaced apart from each other in the lateral direction; Each of the slits extends forward from a rear end of the flexible substrate, the signal line is located between the two slits in the lateral direction and extends in the front-rear direction, The pressed portion of the fixed member is pressed against a portion of the flexible board that corresponds to the signal line in the front-rear direction. structure.