Coaxial connector

Abstract

To provide a coaxial connector that can stably connect the shell to the ground layer of the substrate. [Solution] The coaxial connector 12 comprises a shell 30 and a nut component 40. The shell 30 has a flange portion 34 and a projection portion 36 that protrudes rearward from the flange portion 34. An upper through hole 37 is formed in the projection portion 36. The nut component 40 has a fixed portion 41 with a screw hole 43, a movable portion 45 with a lower through hole 46, and a connecting portion 47 that connects the fixed portion 41 and the movable portion 45 to each other. The nut component 40 is attached to the shell 30 by screwing a screw 60 through the lower through hole 46, the through hole 72 in the substrate 16, and the upper through hole 37 into the screw hole 43. The connecting portion 37 has an upper connecting portion 48 and a lower connecting portion 49. The lower connecting portion 49 is located in front of the upper connecting portion 48. The center of the screw hole 43 is located in front of the upper connecting portion 48.

Description

Technical Field

[0006] , ,

[0005] ,

[0001] The present invention relates to a coaxial connector connected to a substrate.

Background Art

[0002] For example, Patent Document 1 discloses this type of coaxial connector.

[0003] Referring to FIGS. 24 and 25, the coaxial connector 90 of Patent Document 1 is connected to a substrate 95. The substrate 95 includes a signal pattern (signal line) 96, a first ground layer 97, and a plating film 98. The plating film 98 is electrically connected to the first ground layer 97. More specifically, the plating film 98 is formed in a region including the end face of the first ground layer 97 and is located directly below the signal line 96. The coaxial connector 90 includes a center conductor (contact) 92 and an outer conductor (shell) 93. The coaxial connector 90 is connected to the substrate 95 using two screws 91. When the coaxial connector 90 is connected to the substrate 95, the shell 93 contacts the plating film 98, and thereby is grounded to the first ground layer 97. According to Patent Document 1, with the above-described structure, the reflection characteristics of signals between the substrate 95 and the coaxial connector 90 can be improved.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When connecting the coaxial connector 90 of Patent Document 1 to the substrate 95, there is a possibility that the plating film 98 of the substrate 95 may not stably contact the shell 93 of the coaxial connector 90. That is, there is a possibility that the shell 93 may not be reliably electrically connected to the first ground layer 97.

[0006] Therefore, the present invention aims to provide a coaxial connector that can stably connect the shell to the ground layer of the substrate. [Means for solving the problem]

[0007] The present invention provides a first coaxial connector, A coaxial connector that is attached to the rear end in the front-to-back direction of a coaxial cable and connected to a circuit board, The substrate has an upper surface and a lower surface in the vertical direction perpendicular to the front-rear direction, and two through holes are formed in the substrate that penetrate the substrate in the vertical direction, and a signal line is formed on the upper surface of the substrate, and the signal line is located between the two through holes in the lateral direction perpendicular to both the front-rear direction and the vertical direction, and a ground layer is formed on the lower surface of the substrate. The aforementioned coaxial connector comprises a shell, contacts, a metal nut component, and two screws. The aforementioned shell has a flange portion and two protrusions, Each of the aforementioned protrusions extends rearward from the flange portion. Each of the aforementioned protrusions has an upper through hole formed therein. Each of the upper through holes penetrates the protruding portion in the vertical direction. The aforementioned nut component has a fixed part, a movable part, and two connecting parts. The aforementioned fixing portion is located above the nut component, The movable part is located below the nut component, Each of the aforementioned connecting parts connects the fixed part and the movable part to each other. The fixing portion has two screw holes that correspond to the connecting portion. The movable part has two lower through holes. Each of the aforementioned lower through holes penetrates the movable part in the vertical direction. The nut component is attached to the shell by positioning the fixing portion above the protruding portion and the movable portion below the protruding portion, inserting the substrate between the protruding portion and the movable portion, and screwing the two screws through the lower through hole of the movable portion, the through hole of the substrate, and the upper through hole of the protruding portion into the screw holes of the fixing portion, respectively. Each of the connecting parts of the nut component has an upper connecting part and a lower connecting part. Each of the upper connecting portions is located at the boundary between the connecting portion and the fixing portion. Each of the aforementioned lower connecting portions is located at the boundary between the connecting portion and the movable portion. In each of the aforementioned connecting portions, the lower connecting portion is located in front of the upper connecting portion. The center of each of the aforementioned screw holes is located in front of the corresponding upper connecting portion of the connecting portion. We provide coaxial connectors.

[0008] The present invention provides a second coaxial connector, which is a first coaxial connector, The aforementioned fixing part has two upper side parts, Each of the aforementioned upper side portions is located on the outer edge of the fixing portion in the lateral direction, The movable part has two lower side parts, Each of the aforementioned lower side portions is located on the outer edge of the movable portion in the lateral direction, Each of the aforementioned connecting parts connects one of the upper side parts to one of the lower side parts. The movable part is a single plate in which the two lower through holes are formed. We provide coaxial connectors.

[0009] The present invention provides a third coaxial connector, which is a first coaxial connector, The nut component has a downward extension, The aforementioned downward extension extends downward from the rear end of the fixed portion. We provide coaxial connectors.

[0010] As a fourth coaxial connector, the present invention provides a first coaxial connector, where a restricting portion is provided on the shell, the restricting portion is located behind a portion of the nut component other than the movable portion, and restricts the backward movement of the fixing portion and provides a coaxial connector.

[0011] As a fifth coaxial connector, the present invention provides a first coaxial connector, each of the upper connection portions of the connecting portions has a first size in the front-rear direction, in each of the connecting portions, the center of the upper connection portion in the front-rear direction and the center of the lower connection portion in the front-rear direction are separated from each other by a second size in the front-rear direction, and in each of the connecting portions, the second size is not less than the first size and provides a coaxial connector.

[0012] As a sixth coaxial connector, the present invention provides a first coaxial connector, each of the upper connection portions of the connecting portions has a first size in the front-rear direction, an intermediate portion between the upper connection portion and the lower connection portion in each of the connecting portions extends along a predetermined direction intersecting both the front-rear direction and the up-down direction, each of the intermediate portions has a third size in a direction orthogonal to the predetermined direction, and in each of the connecting portions, the first size is not less than the third size and provides a coaxial connector.

[0013] As a seventh coaxial connector, the present invention provides a coaxial connector including a shell, a contact, a metallic nut component, and two screws, where the shell has a flange portion and two protruding portions, each of the protruding portions protrudes rearward from the flange portion, Each of the aforementioned protrusions has an upper through hole formed therein. Each of the upper through holes penetrates the protruding portion in the vertical direction. The aforementioned nut component has a fixed part, a movable part, and two connecting parts. The aforementioned fixing portion is located above the nut component, The movable part is located below the nut component, Each of the aforementioned connecting parts connects the fixed part and the movable part to each other. The fixing portion has two screw holes that correspond to the connecting portion. The movable part has two lower through holes. Each of the aforementioned lower through holes penetrates the movable part in the vertical direction. The nut component is attached to the shell by positioning the fixed portion above the protruding portion and the movable portion below the protruding portion, and by screwing the two screws through the lower through hole of the movable portion and the upper through hole of the protruding portion into the screw holes of the fixed portion, respectively. Each of the connecting parts of the nut component has an upper connecting part and a lower connecting part. Each of the upper connecting portions is located at the boundary between the connecting portion and the fixing portion. Each of the aforementioned lower connecting portions is located at the boundary between the connecting portion and the movable portion. In each of the aforementioned connecting portions, the lower connecting portion is located in front of the upper connecting portion. The center of each of the aforementioned screw holes is located in front of the corresponding upper connecting portion of the connecting portion. We provide coaxial connectors. [Effects of the Invention]

[0014] According to the coaxial connector of the present invention, the nut component attached to the shell is connected to the shell at the fixed portion. Furthermore, the lower connection portion of the nut component is located in front of the upper connection portion, and the center of the screw hole is also located in front of the upper connection portion. Due to this positional relationship, when the nut component is attached to the shell together with the substrate using screws, the movable portion moves upward and forward. The movable portion that moves upward is pressed against the ground layer of the substrate. Furthermore, the movable portion that moves forward can be pressed against the flange portion of the shell. As described above, the shell of the present invention can be reliably grounded to the ground layer of the substrate via the nut component. In other words, the present invention provides a coaxial connector that can stably connect the shell to the ground layer of the substrate. [Brief explanation of the drawing]

[0015] [Figure 1] This is an exploded perspective view showing a connector assembly according to an embodiment of the present invention. The outline of the coaxial cable connected to the coaxial connector of the connector assembly is shown with a dashed line. A portion of the circuit board of the connector assembly (the area enclosed by the dashed line) is shown in a magnified view. [Figure 2] Figure 1 is an exploded perspective view showing the coaxial connector of the connector assembly. The contacts received by the insulating material are shown in magnified detail. [Figure 3] Figure 2 is a perspective view showing the connector body, which consists of the shell, contacts, and insulating material of the coaxial connector. The hidden outline of the upper through hole and the outline of the screw shaft are drawn with dashed lines. [Figure 4] Figure 2 is a perspective view showing the nut component of a coaxial connector. [Figure 5] Figure 4 is another perspective view showing the nut component. [Figure 6] Figure 4 is a front view showing the nut component. The hidden screw hole and the outline of the lower through hole are drawn with dashed lines, along with the outline of the screw shaft. [Figure 7] Figure 4 is a side view showing the nut component. The hidden female thread of the screw hole is schematically depicted with a dashed line. The center position of the screw hole is shown with a dashed line. [Figure 8] Figure 3 is a perspective view showing the connector body together with the nut component, screw, and circuit board. The circuit board is separate from the connector body. [Figure 9] Figure 8 is a perspective view showing the connector body, nut component, screw, and circuit board. The circuit board is inserted between the protruding part of the connector body and the movable part of the nut component. [Figure 10] Figure 9 is a perspective view showing a coaxial connector consisting of the connector body, nut component, and screw, and a circuit board. The coaxial connector is connected to the circuit board. [Figure 11] Figure 10 is another perspective view showing the coaxial connector and circuit board. The outline of the coaxial cable is drawn with a dashed line. [Figure 12] Figure 10 is a side view showing the coaxial connector and circuit board. The outlines of the hidden lower through-hole, through-hole, upper through-hole, and screw holes are drawn with dashed lines. [Figure 13] Figure 10 is a bottom view showing the coaxial connector and circuit board. [Figure 14] This is another side view showing the nut component in Figure 7. The nut component is in the connected state. The outline of the movable part of the nut component in Figure 7 is drawn with a dashed line. [Figure 15] This is a perspective view showing a modified version of the substrate in Figure 1. [Figure 16] This is a side view showing a first modified example of the nut component in Figure 4. The position of the center of the screw hole is indicated by a dashed line. [Figure 17] This is a side view showing a second modified example of the nut component in Figure 4. The center of the screw hole is indicated by a dashed line. [Figure 18] Figure 4 is a perspective view showing a third modified example of the nut component. [Figure 19] Figure 4 is a perspective view showing a fourth modified example of the nut component. [Figure 20] Figure 4 is a perspective view showing a fifth modified example of the nut component. [Figure 21] Figure 20 is a side view showing the nut component. The outlines of the hidden screw hole and the lower through hole are drawn with dashed lines. The position of the center of the screw hole is drawn with a dashed line. [Figure 22] Figure 4 is a perspective view showing a sixth modified example of the nut component. [Figure 23] Figure 22 is a side view showing the nut component. The outlines of the hidden screw hole and the lower through hole are drawn with dashed lines. The center position of the screw hole is drawn with a dashed line. [Figure 24] This is a perspective view showing the coaxial connector of Patent Document 1 together with the substrate. [Figure 25] Figure 24 is a cross-sectional view partially showing the coaxial connector and substrate. [Modes for carrying out the invention]

[0016] Referring to Figure 1 in conjunction with Figure 11, the connector assembly 10 according to an embodiment of the present invention comprises a coaxial connector 12 and a circuit board 16. The coaxial connector 12 in this embodiment is a so-called SMA (Sub Miniature Type A) connector. The coaxial connector 12 is attached to the rear end in the front-rear direction of the coaxial cable 80 and connected to the circuit board 16. More specifically, the coaxial connector 12 is connected to the front end of the circuit board 16 which extends along a horizontal plane. The circuit board 16 in this embodiment is a flexible circuit board and is easily bent. However, the present invention is not limited to this embodiment and is applicable to various coaxial connectors 12. Also, the circuit board 16 may be a rigid circuit board.

[0017] In this embodiment, the horizontal plane is the XY plane, and the front-to-back direction is the X direction. In this embodiment, "forward" is the +X direction, and "backward" is the -X direction. The terms horizontal plane, front-to-back direction, etc., do not indicate an absolute positional relationship with respect to the ground, but merely indicate the relative positional relationship when the plane extending when the substrate 16 is not bent is defined as the horizontal plane, and the position of the coaxial connector 12 relative to this substrate 16 is defined as the front.

[0018] Referring to Figures 8 to 10, the coaxial connector 12 is connected to the circuit board 16 by screwing it in. The coaxial connector 12 in Figure 8 is in the pre-connection state before it is connected to the circuit board 16. The coaxial connector 12 in Figure 9 is in the intermediate connection state before it is connected to the circuit board 16. The coaxial connector 12 in Figure 10 is in the connected state after it has been connected to the circuit board 16.

[0019] The coaxial cable 80 (see Figure 1) and the circuit board 16 of this embodiment will be described below.

[0020] Referring to Figure 1, the coaxial cable 80, drawn with a dashed line, is a typical coaxial cable comprising a central conductor (not shown) made of a conductor, an internal insulator (not shown) made of an insulator that covers the central conductor, an external conductor (not shown) made of a conductor that covers the internal insulator, and an outer sheath 88 made of an insulator that covers the external conductor. In this embodiment, the number of central conductors is one. As long as the number of central conductors is one, the structure of the coaxial cable 80 is not particularly limited. For example, the external conductor may be a braid formed from fine metal wires, or it may be formed from metal foil. The coaxial cable 80 may be attached to the front end of the coaxial connector 12 via a mating connector (not shown) attached to the coaxial cable 80.

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

[0022] The substrate 16 has two through holes 72 that penetrate the substrate 16 in the vertical direction. Each of the through holes 72 has a circular shape in the horizontal plane. These through holes 72 are used when screwing the coaxial connector 12 to the substrate 16. The two through holes 72 are separated from each other in the lateral direction, which is perpendicular to both the front-to-back and up-to-down directions, and are at the same position as each other in the front-to-back direction. In this embodiment, the lateral direction is the Y direction.

[0023] A conductive pattern, which is a signal line 74, is formed on the upper surface 70U of the substrate 16. The signal line 74 extends in the front-to-back direction and is located between two through holes 72 in the lateral direction. Referring to Figure 13, a conductive pattern, which is a ground layer 76, is formed on the lower surface 70L of the substrate 16. In this embodiment, the ground layer 76 covers the entire lower surface 70L. In other words, a so-called microstrip line is formed on the substrate 16.

[0024] Referring to Figure 1, the signal line 74 is connected to an antenna formed, for example, at the rear end of the substrate 16 (not shown). In this case, the coaxial connector 12, which is connected, transmits a signal to the antenna via the signal line 74. The transmitted signal is then transmitted from the antenna. The signal received by the antenna is also transmitted to the coaxial connector 12 via the signal line 74. The connector assembly 10 of this embodiment is used, for example, as described above. However, the use of the connector assembly 10 in the present invention is not particularly limited.

[0025] The substrate 16 of this embodiment has the structure described above. However, the structure of the substrate 16 can be modified depending on the application of the connector assembly 10. For example, the shape of each of the through holes 72 is not particularly limited. The through holes 72 may be located at somewhat different positions from each other in the front-to-back direction. Also, the ground layer 76 may be partially formed on the lower surface 70L.

[0026] Referring to Figure 2, the coaxial connector 12 of this embodiment comprises a connector body 14, a metal nut component 40, and two screws 60. The coaxial connector 12 of this embodiment comprises only the above-mentioned components. However, the present invention is not limited thereto. For example, the coaxial connector 12 may further comprise other components in addition to the above-mentioned components.

[0027] Referring to Figure 1 in conjunction with Figure 11, the coaxial connector 12 is connected to the substrate 16 by screwing it into the through holes 72 of the substrate 16 using screws 60 corresponding to each hole. Each screw 60 in this embodiment is a typical metal screw and has a head 62 and a shaft 64. Each shaft 64 has a male thread (not shown) formed on it. The diameter of each head 62 is larger than the diameter of the shaft 64 and the diameter of the corresponding through hole 72. The diameter of each shaft 64 is smaller than the diameter of the corresponding through hole 72. Each screw 60 in this embodiment has the structure described above. However, the present invention is not limited thereto. For example, each screw 60 may be made of an insulator.

[0028] The connector body 14 of this embodiment (see Figure 3) will be described below.

[0029] Referring to Figure 2 in conjunction with Figure 3, the connector body 14 of this embodiment comprises a metal contact 20, an insulating member 28 made of an insulator such as resin, and a metal shell 30. That is, the coaxial connector 12 of this embodiment comprises a nut component 40 and a screw 60, in addition to the contact 20, the insulating member 28, and the shell 30. The connector body 14 of this embodiment comprises only the above-mentioned components. However, the present invention is not limited thereto. For example, the connector body 14 may further comprise other components in addition to the above-mentioned components.

[0030] In this embodiment, the contact 20 extends along the front-rear direction and has a contact portion 22. The contact portion 22 is located at the rear end of the contact 20 in the front-rear direction. The contact 20 is partially received by the insulating member 28, and the contact portion 22 protrudes rearward from the insulating member 28. Referring to Figure 11, when the coaxial connector 12 is attached to the coaxial cable 80, the contact 20 is connected to the central conductor (not shown) of the coaxial cable 80. The contact 20 and the central conductor, connected to each other, transmit signals between them.

[0031] Referring to Figure 2 in conjunction with Figure 3, the shell 30 of this embodiment comprises a front conductive member 32 and a rear conductive member 33. The front conductive member 32 is assembled to the rear conductive member 33 after the contact 20, which is received by the insulating member 28, is placed inside the rear conductive member 33. The front conductive member 32 is located in front of the rear conductive member 33 and is in contact with the rear conductive member 33. The shell 30 of this embodiment consists of the two members described above. However, the present invention is not limited thereto. For example, the front conductive member 32 and the rear conductive member 33 may be integrally formed members.

[0032] Referring to Figure 11, when the coaxial connector 12 is attached to the coaxial cable 80, the shell 30 is connected to the outer conductor (not shown) of the coaxial cable 80. More specifically, the front conductive member 32 of the shell 30 is connected to the outer conductor, thereby electrically connecting the entire shell 30 to the outer conductor. The shell 30 and the outer conductor, connected to each other, have the same ground potential.

[0033] Referring to Figure 2 in conjunction with Figure 3, the contact 20, insulating member 28, and shell 30 are combined as described above to form the connector body 14. In the assembled connector body 14, the insulating member 28 insulates the contact 20 and the shell 30 from each other.

[0034] The following provides a more detailed description of the shell 30 of the assembled connector body 14.

[0035] As shown in Figure 3, the shell 30 has a flange portion 34 and two protrusions 36. In this embodiment, the flange portion 34 and the protrusions 36 are provided on the rear conductive member 33.

[0036] The flange portion 34 of this embodiment has an end face 342 and a protruding portion 344. The end face 342 is a plane parallel to the vertical plane (YZ plane) perpendicular to the front-rear direction. The protruding portion 344 is located in the middle of the flange portion 34 in both the vertical and lateral directions, and protrudes rearward from the end face 342. The front surface of the protruding portion 344 is a plane parallel to the vertical plane.

[0037] A central hole 38 is formed in the protruding portion 344 of this embodiment. The central hole 38 is a semicircular hole in the vertical plane (YZ plane). The central hole 38 is located in the middle of the protruding portion 344 in the lateral direction and at the lower end of the protruding portion 344 in the vertical direction. The central hole 38 opens to the rear and downward.

[0038] The flange portion 34 of this embodiment has the structure described above. However, the present invention is not limited thereto. For example, the protruding portion 344 may be provided as needed.

[0039] The two protrusions 36 in this embodiment are separated from each other in the lateral direction. The overhang 344 connects the front ends of the two protrusions 36 in the lateral direction. That is, the central hole 38 is located between the two protrusions 36 in the lateral direction. Each of the protrusions 36 projects rearward from the flange portion 34. More specifically, each of the protrusions 36 projects rearward from the end face 342 beyond the front surface of the overhang 344. The two protrusions 36 have a mirror-symmetric shape with respect to an orthogonal plane (XZ plane) perpendicular to the lateral direction. That is, the two protrusions 36 are in the same position relative to each other in the vertical direction.

[0040] Each of the protruding portions 36 has an upper through hole 37 formed therein. Each upper through hole 37 penetrates the protruding portion 36 in the vertical direction. The upper through holes 37 are positioned in the horizontal plane to correspond to the through holes 72 of the substrate 16 (see Figure 1). That is, the two upper through holes 37 are separated from each other in the lateral direction and are at the same position in the front-to-back direction. Also, the two upper through holes 37 are at the same position in the vertical direction. Each of the upper through holes 37 has a circular shape in the horizontal plane. The diameter of each upper through hole 37 is larger than the diameter of the shaft 64 of the screw 60. That is, each shaft 64 can pass through the upper through hole 37 without contacting the wall surface.

[0041] Each of the protruding portions 36 in this embodiment is provided with a restricting portion 39. That is, the shell 30 in this embodiment is provided with two restricting portions 39. Each of the restricting portions 39 protrudes laterally outward from the protruding portion 36.

[0042] The protrusion 36 of this embodiment has the structure described above. However, the present invention is not limited thereto. For example, the two protrusions 36 may have shapes that are not mirror-symmetric with respect to the orthogonal plane (XZ plane). Each of the upper through holes 37 may have an internal thread formed therein for screwing in the shaft 64 of the screw 60.

[0043] In the connector body 14 having the structure described above, the contact portion 22 of the contact 20 is located between the two protrusions 36 in the lateral direction. More specifically, the contact portion 22 is located at the center of the central hole 38 in the vertical plane (YZ plane). The contact portion 22 extends rearward beyond the end face 342. That is, the contact portion 22 is located behind the end face 342.

[0044] Referring to Figure 11, the contact portion 22 of the contact 20, in the connected state, contacts the signal line 74 of the substrate 16, thereby transmitting a signal between the contact portion 22 and the signal line 74. The lower parts of the two protrusions 36 need to be separated from each other in the lateral direction in order to allow the contact portion 22 and the signal line 74 to come into contact with each other. On the other hand, the upper parts of the two protrusions 36 may be connected to each other across the entire protrusion 36. However, with this structure, it is difficult to form the rear conductive member 33 by machining. From the viewpoint of easily forming the rear conductive member 33, this embodiment is preferred.

[0045] The nut component 40 of this embodiment will be described below.

[0046] Referring to Figure 4, the nut component 40 of this embodiment is formed by bending, burring, and other processes on a single metal plate. In other words, the nut component 40 of this embodiment is a single metal plate with bends. However, the present invention is not limited thereto. For example, the nut component 40 may be formed by joining multiple metal members.

[0047] As shown in Figures 4 to 6, the nut component 40 of this embodiment has a fixed portion 41, a downward extension portion 42, a movable portion 45, and two connecting portions 47. Each of the fixed portion 41, downward extension portion 42, movable portion 45, and connecting portions 47 of this embodiment is part of a single nut component 40. The nut component 40 of this embodiment has the above-described parts. However, the present invention is not limited thereto. For example, the downward extension portion 42 may be provided as needed. The nut component 40 may have other parts in addition to the above-described parts. The fixed portion 41, downward extension portion 42, movable portion 45, and connecting portions 47 may be formed separately from each other and then joined together.

[0048] In this embodiment, the fixing portion 41 is the upper part of the nut component 40. In other words, the fixing portion 41 is located above the nut component 40. The downward extension portion 42 in this embodiment extends downward from the rear end of the fixing portion 41. That is, the downward extension portion 42 is located behind the fixing portion 41.

[0049] The fixing portion 41 of this embodiment includes two partial fixing portions 418, each corresponding to the connecting portion 47. The downward extension portion 42 of this embodiment includes two partial downward extension portions 428, each corresponding to the partial fixing portion 418. In other words, the nut component 40 has two partial fixing portions 418 and two partial downward extension portions 428. The two partial fixing portions 418 are spaced apart from each other in the lateral direction. Each of the partial downward extension portions 428 extends downward from the rear end of the corresponding partial fixing portion 418. That is, the two partial downward extension portions 428 are spaced apart from each other in the lateral direction.

[0050] The fixing portion 41 has two upper side portions 412. Each of the upper side portions 412 in this embodiment is located on the outer edge of the fixing portion 41 in the lateral direction. That is, the two upper side portions 412 are the two furthest apart in the lateral direction of the four end faces of the two partial fixing portions 418 in the lateral direction. More specifically, each of the upper side portions 412 is an end face of the fixing portion 41 that faces outward in the lateral direction and extends along the front-rear direction.

[0051] Each of the partial fixing parts 418 has a cylindrical part 43. That is, the fixing part 41 has two cylindrical parts 43, each corresponding to a connecting part 47. Each of the cylindrical parts 43 has a cylindrical shape and protrudes upward from the upper surface of the flat plate portion (flat plate part) of the fixing part 41. A screw hole 44 is formed inside each of the cylindrical parts 43. That is, the fixing part 41 has two screw holes 44, each corresponding to a connecting part 47.

[0052] Referring to Figure 6 in conjunction with Figure 7, each of the screw holes 44 has a female thread formed therein (not shown in Figure 6) into which the shaft 64 of the screw 60 can be screwed. The screw holes 44 are located in positions corresponding to the through holes 72 (see Figure 1) of the substrate 16 (see Figure 1) in the horizontal plane. That is, the two screw holes 44 are separated from each other in the lateral direction and are in the same position in the front-to-back direction. Also, the two screw holes 44 are in the same position in the up-to-down direction. Each of the screw holes 44 in this embodiment penetrates the fixing part 41 in the up-to-down direction. That is, each of the screw holes 44 opens upwards and downwards. However, the present invention is not limited thereto. For example, each of the screw holes 44 may open downwards only.

[0053] Referring to Figures 4 to 6, the movable part 45 in this embodiment is the lower part of the nut component 40. In other words, the movable part 45 is located on the lower side of the nut component 40. The movable part 45 has a rectangular plate shape parallel to the horizontal plane and has two lower side portions 452. Each of the lower side portions 452 is located on the outer edge of the movable part 45 in the lateral direction. More specifically, each of the lower side portions 452 is an end face facing outward in the lateral direction of the movable part 45 and extends along the front-rear direction.

[0054] The movable part 45 has two lower through holes 46. Each of the lower through holes 46 penetrates the movable part 45 in the vertical direction. The lower through holes 46 are positioned in the horizontal plane to correspond to the through holes 72 (see Figure 1) of the substrate 16 (see Figure 1). That is, the two lower through holes 46 are separated from each other in the lateral direction and are in the same position in the front-to-back direction. Each of the lower through holes 46 has a circular shape in the horizontal plane. The diameter of each lower through hole 46 is larger than the diameter of the shaft 64 of the screw 60. That is, each of the shafts 64 can pass through the lower through hole 46 without contacting the wall surface.

[0055] Referring to Figure 6 in conjunction with Figure 7, the connecting portion 47 in this embodiment is located on both sides of the nut component 40 in the lateral direction. Each connecting portion 47 connects the fixed portion 41 and the movable portion 45 to each other. More specifically, each connecting portion 47 has an upper connecting portion 48 and a lower connecting portion 49. Each upper connecting portion 48 is located at the boundary between the connecting portion 47 and the fixed portion 41. Each lower connecting portion 49 is located at the boundary between the connecting portion 47 and the movable portion 45. Each connecting portion 47 extends continuously in a meandering manner between the upper connecting portion 48 and the lower connecting portion 49. That is, each connecting portion 47 in this embodiment connects one of the upper side portions 412 and one of the lower side portions 452 to each other.

[0056] The nut component 40 of this embodiment has the structure described above. However, the present invention is not limited thereto, and the structure of the nut component 40 can be modified in various ways as needed.

[0057] For example, the fixing portion 41 in this embodiment is divided into two parts (partial fixing portion 418) in the lateral direction, and the movable portion 45 in this embodiment is a single plate with two lower through holes 46 formed therein. In particular, the movable portion 45 in this embodiment is a single flat plate. However, the present invention is not limited thereto. For example, the fixing portion 41 may be a single portion that is seamlessly connected in the lateral direction. In this case, the downward extension portion 42 may be a single portion that is seamlessly connected in the lateral direction. However, as can be seen from Figure 4, if the two partial fixing portions 418 are connected to each other in the lateral direction, the nut component 40 cannot be formed from a single metal plate. From the viewpoint of easily manufacturing the nut component 40, this embodiment is preferred.

[0058] In this embodiment, each of the screw holes 44 is formed in the flat plate portion (flat plate portion) and the cylindrical portion 43 of the fixing portion 41. However, the present invention is not limited thereto. For example, if the size of the flat plate portion of the fixing portion 41 in the vertical direction is sufficiently large, the cylindrical portion 43 does not need to be provided. In this case, the fixing portion 41 may consist of two flat plates, each with two screw holes 44 formed therein. That is, each of the screw holes 44 may be formed only in the flat plate portion of the fixing portion 41.

[0059] Referring to Figures 8 to 10, the nut component 40 can be attached to the connector body 14 as shown below. However, the attachment method described below is merely one example and can be modified as needed.

[0060] Referring to Figure 8 in conjunction with Figure 3, first, the fixing portion 41 of the nut component 40 is placed on the protruding portion 36 such that the screw hole 44 is positioned directly above the upper through hole 37. At this time, the fixing portion 41 is located behind the end face 342 of the flange portion 34, and the downward extension portion 42 is located behind the fixing portion 41. Hereinafter, the position of the nut component 40 at this time will be referred to as the "initial position," and the state of the nut component 40 at this time will be referred to as the "initial state."

[0061] Referring to Figure 8 in conjunction with Figures 3 and 4, when the nut component 40 is in its initial position, the lower through hole 46 of the movable part 45 is located away from the lower end of the upper through hole 37 and directly below the upper through hole 37. When the two screws 60 are screwed through the lower through hole 46 and the upper through hole 37 into the screw holes 44 of the nut component 40 in its initial position, the nut component 40 is attached to the shell 30 of the connector body 14.

[0062] To summarize the above explanation, the nut component 40 is attached to the shell 30 by positioning the fixing part 41 above the protruding part 36, positioning the movable part 45 below the protruding part 36, and screwing two screws 60 through the lower through hole 46 of the movable part 45 and the upper through hole 37 of the protruding part 36 into the screw holes 44 of the fixing part 41, respectively. However, with this attachment method, the coaxial connector 12 is not connected to the circuit board 16. In order to connect the coaxial connector 12 to the circuit board 16, the following steps are required.

[0063] Referring to Figures 8 and 9 in conjunction with Figures 3 and 4, a gap larger than the thickness of the substrate 16 is formed between the movable part 45 of the nut component 40 in its initial position and the lower end of the upper through hole 37 of the protruding part 36. The front end of the substrate 16 is inserted into this gap so that the through hole 72 is positioned between the upper through hole 37 and the lower through hole 46 of the movable part 45, respectively.

[0064] Next, referring to Figures 9 and 10 in conjunction with Figures 3 and 4, when the two screws 60 are screwed into the screw hole 44 of the nut component 40 in its initial position, through the lower through hole 46, the through hole 72, and the upper through hole 37, the nut component 40 is attached to the shell 30 of the connector body 14 together with the substrate 16. At this time, the heads 62 of the screws 60 are pressed against the movable part 45. As a result, the front end of the substrate 16 is sandwiched between the lower surface of the protruding part 36 and the upper surface of the movable part 45, and the fixed part 41 is pressed against the upper surface of the protruding part 36.

[0065] To summarize the above explanation, the nut component 40 is attached to the shell 30 by positioning the fixing part 41 above the protruding part 36 and the movable part 45 below the protruding part 36, inserting the substrate 16 between the protruding part 36 and the movable part 45, and screwing the two screws 60 through the lower through hole 46 of the movable part 45, the through hole 72 of the substrate 16, and the upper through hole 37 of the protruding part 36 into the screw holes 44 of the fixing part 41. When the nut component 40 is attached to the shell 30 together with the substrate 16, the coaxial connector 12 is connected to the substrate 16.

[0066] Referring to Figure 12, in the coaxial connector 12 of this embodiment, the fixing portion 41 pressed against the protruding portion 36 of the shell 30 is fixed and connected to the shell 30. That is, the nut component 40 attached to the shell 30 is electrically connected to the shell 30 at the fixing portion 41.

[0067] Referring to Figures 7 and 12, in the initial state of the nut component 40, the lower connecting portion 49 of each connecting portion 47 is located in front of the upper connecting portion 48. Also, in the initial state of the nut component 40, the center 442 (i.e., the virtual central axis) of each screw hole 44 is located in front of the upper connecting portion 48 of the corresponding connecting portion 47. More specifically, in each connecting portion 47, the center of the lower connecting portion 49 in the front-to-back direction is located in front of the center of the upper connecting portion 48 in the front-to-back direction. Also, the center 442 of each screw hole 44 is located in front of the center of the upper connecting portion 48 of the corresponding connecting portion 47 in the front-to-back direction.

[0068] Referring to Figures 7 and 12 in conjunction with Figure 14, according to the positional relationship described above, when the nut component 40 is attached to the shell 30 together with the substrate 16 by screws 60, each of the connecting parts 47 undergoes elastic deformation, thereby causing the movable part 45 to move upward and forward. As previously mentioned, the movable part 45 in this embodiment is not divided into two parts in the lateral direction. This structure suppresses the lateral movement of the movable part 45, and makes it easier for the movable part 45 to move forward. Referring to Figures 12 and 13, the movable part 45 that has moved upward is pressed against the ground layer 76 of the substrate 16. As a result, a first ground path is formed between the protruding part 36 and the ground layer 76, via the fixing part 41, connecting part 47, and movable part 45 of the nut component 40. The shell 30 is grounded to the ground layer 76 via the first ground path.

[0069] Furthermore, by reducing the distance between the front end of the movable part 45 of the nut component 40 in its initial position and the end face 342 of the flange portion 34 of the shell 30, the movable part 45 that has moved forward is pressed against the flange portion 34. As a result, a second ground path is formed between the flange portion 34 and the ground layer 76, passing only through the movable part 45 of the nut component 40. The shell 30 is grounded to the ground layer 76 via the second ground path, which is the shortest ground path, in addition to the first ground path. Moreover, by using a metal screw 60, a third ground path is formed between the protruding part 36 and the ground layer 76, passing through the fixed part 41, the screw 60, and the movable part 45. The shell 30 is also grounded to the ground layer 76 via the third ground path.

[0070] As described above, the shell 30 of this embodiment can be reliably grounded to the ground layer 76 of the substrate 16 via the nut component 40. In other words, according to this embodiment, a coaxial connector 12 is provided that can stably connect the shell 30 to the ground layer 76 of the substrate 16.

[0071] The features of the coaxial connector 12 (see Figure 11) of this embodiment will be described in more detail below.

[0072] Referring to Figure 8, if the downward extension 42 were not provided, the nut component 40 might be positioned on the protruding portion 36 in the reverse direction. In this case, the movable portion 45 would move backward when the screw 60 is screwed in. On the other hand, according to this embodiment, since the downward extension 42 is provided, it is possible to prevent the nut component 40 from being positioned on the protruding portion 36 in the reverse direction. In addition, it is also possible to prevent the substrate 16 from being inserted between the fixed portion 41 and the upper surface of the protruding portion 36. However, the present invention is not limited thereto. For example, a part other than the downward extension 42 may function in the same way as the downward extension 42.

[0073] Referring to Figures 12 and 13, the restricting portion 39 is located behind the portion of the nut part 40 other than the movable portion 45, and restricts the rearward movement of the fixed portion 41. More specifically, in this embodiment, the restricting portion 39 is located behind the upper end of the connecting portion 47. When the screws 60 are screwed into the screw holes 44 of the fixed portion 41, the fixed portion 41 moves backward, and the upper ends of the connecting portion 47 abut against the restricting portion 39, thereby stopping the fixed portion 41. The movable portion 45 moves forward relative to the fixed portion 41, which does not move substantially. That is, the movable portion 45 moves reliably toward the flange portion 34.

[0074] The restricting portion 39 in this embodiment is arranged and functions as described above. However, the present invention is not limited thereto. Referring to Figure 10, for example, if the fixing portion 41 is not provided with a downward extension portion 42, the restricting portion 39 may be located behind the fixing portion 41. In this case, the restricting portion 39 may protrude upward from the rear end of the upper surface of the protruding portion 36. Referring to Figure 12, for example, if a female thread for screwing a screw 60 is formed in the upper through hole 37 of the protruding portion 36, the fixing portion 41 does not move when screwing the screws 60 into the screw holes 44 of the fixing portion 41. In this case, it is not necessary to provide the restricting portion 39.

[0075] Referring to Figure 7, the initial nut component 40 satisfies the first connection condition, "In each of the connecting portions 47, the lower connecting portion 49 is located in front of the upper connecting portion 48," and the second connection condition, "The center 442 of each screw hole 44 is located in front of the upper connecting portion 48 of the corresponding connecting portion 47," as described above. However, the present invention is not limited thereto.

[0076] For example, in the initial state of the nut component 40, each upper connecting portion 48 of the connecting portion 47 has a first size SZ1 in the front-rear direction. Also, in each of the connecting portions 47, the center of the upper connecting portion 48 in the front-rear direction and the center of the lower connecting portion 49 in the front-rear direction are separated by a second size SZ2 in the front-rear direction. In addition to the first and second connection conditions, the initial state of the nut component 40 also satisfies a third connection condition: "In each of the connecting portions 47, the second size SZ2 is greater than or equal to the first size SZ1." According to these connection conditions, the movable portion 45 moves easily forward.

[0077] In the initial state of the nut component 40, the intermediate portion between the upper connecting portion 48 and the lower connecting portion 49 of each connecting portion 47 extends along a predetermined direction P that intersects both the front-rear direction and the up-down direction. Each of the intermediate portions has a third size SZ3 in a direction perpendicular to the predetermined direction P. In addition to the first to third connection conditions, the initial state of the nut component 40 also satisfies a fourth connection condition: "In each of the connecting portions 47, the first size SZ1 is greater than or equal to the third size SZ3." According to this connection condition, each of the connecting portions 47 is easily elastically deformable, thereby enabling the movable portion 45 to move reliably forward.

[0078] The nut component 40 of this embodiment satisfies all of the first to fourth connection conditions. However, the present invention is not limited thereto. As long as the nut component 40 satisfies the first and second connection conditions, the nut component 40 does not need to satisfy the third and fourth connection conditions, or it may satisfy only one of the third and fourth connection conditions.

[0079] Referring to Figure 11 in conjunction with Figure 12, in the connected state, the signal line 74 of the substrate 16 is pushed from below by the movable part 45 of the nut component 40 and pressed against the contact part 22 of the contact 20, making contact. That is, the contact part 22 and the signal line 74 are electrically connected to each other without soldering. However, the present invention is not limited to this. For example, the contact part 22 and the signal line 74 may be connected to each other by soldering.

[0080] Referring to Figure 15 in conjunction with Figure 1, the coaxial connector 12 may be connected to a modified substrate 16X instead of the substrate 16. Two ground patterns 78X are formed on the upper surface 70U of the substrate 16X, which are not provided on the substrate 16. Referring to Figure 15 in conjunction with Figure 13, each of the ground patterns 78X is connected to the ground layer 76 by a plurality of via holes 79X. Referring to Figure 15 in conjunction with Figure 11, the ground patterns 78X are formed at positions corresponding to the two protrusions 36 of the coaxial connector 12. In the connected state, the protrusions 36 are pressed against the ground patterns 78X, thereby grounding the shell 30 to the ground layer 76 via the protrusions 36 and the ground patterns 78X, in addition to the various ground paths described above.

[0081] Referring to Figure 15, the illustrated ground pattern 78X is provided only at the front end of the substrate 16X. However, the present invention is not limited thereto. The ground pattern 78X may extend parallel to the signal line 74 in the lateral direction to the rear end of the substrate 16X, with the signal line 74 in between. That is, a so-called coplanar line may be formed on the substrate 16X.

[0082] In addition to the various modifications already described, the nut component 40 of this embodiment (see Figure 4) can be further modified in various ways as described below.

[0083] Referring to Figure 13 in conjunction with Figure 11, a projection protruding forward may be formed on the lateral intermediate portion of the movable part 45 of the nut component 40. In the connected state, this projection is located directly below the signal line 74 via the substrate 16 and is strongly pressed against the end face 342 of the flange portion 34. This structure further strengthens the electrical connection between the shell 30 and the ground layer 76.

[0084] Comparing Figure 16 with Figure 7, the nut component 40A according to the first modified example has a connecting portion 47A that is different from the connecting portion 47 of the nut component 40. The second size SZ2 of the nut component 40A is larger than the second size SZ2 of the nut component 40. Except for the differences mentioned above, the nut component 40A has the same structure as the nut component 40 and satisfies the first to fourth connection conditions. That is, the nut component 40A functions in the same way as the nut component 40.

[0085] Comparing Figure 17 with Figure 7, the nut component 40B according to the second modification has a different connecting portion 47B than the connecting portion 47 of the nut component 40. The second size SZ2 of the nut component 40B is smaller than the second size SZ2 of the nut component 40. Except for the differences mentioned above, the nut component 40B has the same structure as the nut component 40 and satisfies the first to fourth connection conditions. That is, the nut component 40B functions in the same way as the nut component 40.

[0086] Comparing Figure 18 with Figure 5, the nut part 40C according to the third modification has a connecting part 47C similar to the connecting part 47 of the nut part 40, as well as two additional connecting parts 472C that are not provided on the nut part 40. Each of the connecting parts 47C has an upper connecting part 48C located at the boundary between the connecting part 47C and the fixed part 41, and a lower connecting part 49C located at the boundary between the connecting part 47C and the movable part 45. Each of the connecting parts 47C extends without meandering between the upper connecting part 48C and the lower connecting part 49C. Each of the additional connecting parts 472C has a structure similar to the connecting part 47C. The additional connecting parts 472C are located in front of the two connecting parts 47C, respectively. Except for the differences described above, the nut part 40C has a structure similar to the nut part 40 and satisfies the first and second connection conditions. In other words, nut part 40C functions in the same way as nut part 40.

[0087] Comparing Figure 19 with Figure 4, the nut part 40D according to the fourth modified example has a fixed part 41D, a movable part 45D, and two connecting parts 47D, which are different from the fixed part 41, movable part 45, and connecting part 47 of the nut part 40. Each of the connecting parts 47D has an upper connecting part 48D located at the boundary between the connecting part 47D and the fixed part 41D, and a lower connecting part 49D located at the boundary between the connecting part 47D and the movable part 45D. Each of the upper connecting parts 48D is located at the rear end edge of the fixed part 41D. Each of the lower connecting parts 49D is located at the rear end edge of the movable part 45D. Each of the connecting parts 47D extends rearward from the upper connecting part 48D and then extends almost straight to the lower connecting part 49D.

[0088] Aside from the differences mentioned above, the nut component 40D has the same structure as the nut component 40 and satisfies the first and second connection conditions. That is, the nut component 40D functions in the same way as the nut component 40. Furthermore, according to this modified example, the nut component 40D can be formed from a single metal plate, while the fixing portion 41D can be made into a single, seamlessly connected part in the lateral direction. Moreover, this modified example is further modifiable. For example, the movable portion 45D, rather than the fixing portion 41D, may be divided into two parts in the lateral direction, while the nut component 40D is formed from a single metal plate.

[0089] Comparing Figures 20 and 21 with Figure 19, the nut part 40E according to the fifth modification has a fixed part 41E, a movable part 45E, and two connecting parts 47E, respectively, which are different from the fixed part 41D, movable part 45D, and connecting part 47D of the nut part 40D. The fixed part 41E is divided into two partial fixed parts 418E in the lateral direction. Each of the connecting parts 47E has an upper connecting part 48E located at the boundary between the connecting part 47E and the fixed part 41E, and a lower connecting part 49E located at the boundary between the connecting part 47E and the movable part 45E. The upper connecting part 48E is located at the rear end edge of the two partial fixed parts 418E, respectively. Each of the lower connecting parts 49E is located at the rear end edge of the movable part 45E. Except for the differences described above, the nut part 40E has the same structure as the nut part 40D and satisfies the first and second connection conditions. In other words, nut part 40E functions the same way as nut part 40D.

[0090] Comparing Figures 22 and 23 with Figures 20 and 21, the nut part 40F according to the sixth modification has a fixed part 41F, a movable part 45F, and two connecting parts 47F, respectively, which are different from the fixed part 41E, movable part 45E, and connecting part 47E of the nut part 40E. The fixed part 41F is divided into two partial fixed parts 418F in the lateral direction. Each of the connecting parts 47F has an upper connecting part 48F located at the boundary between the connecting part 47F and the fixed part 41F, and a lower connecting part 49F located at the boundary between the connecting part 47F and the movable part 45F. The upper connecting part 48F is located at the rear end edge of the two partial fixed parts 418F, respectively. Each of the lower connecting parts 49F is located at the front end edge of the movable part 45F. Except for the differences described above, the nut part 40F has the same structure as the nut part 40E and satisfies the first and second connection conditions. In other words, nut part 40F functions the same way as nut part 40E.

[0091] Although the best embodiment of the present invention has been described above, it will be obvious to those skilled in the art that the embodiment can be modified without departing from the spirit of the invention, and such embodiments fall within the scope of the present invention. [Explanation of Symbols]

[0092] 10 Connector Assembly 12 Coaxial Connectors 14 Connector body 16,16X substrate 20 Contacts 22 Contact area 28 Insulating material 30 shells 32 Front conductive member 33 Rear conductive member 34 Flange section 342 End face 344 Overhang 36 Protrusion 37 Upper passage hole 38 center hole 39 Regulatory Department Nut parts 40, 40A, 40B, 40C, 40D, 40E, 40F 41,41D,41E,41F Fixed part 412 Upper side 418,418E,418F Partially fixed part 42 Lower part 428 Partial extension 43 Cylindrical section 44 screw holes 442 center 45,45D,45E,45F Movable part 452 Lower side 46 Lower passage hole 47, 47A, 47B, 47C, 47D, 47E, 47F connecting section 472C Additional connecting part 48, 48C, 48D, 48E, 48F Upper connection section 49, 49C, 49D, 49E, 49F Lower connection section 60 screws 62 heads 64 shaft 70U top 70L bottom surface 72 Passing hole 74 signal line 76 Ground Layer 78X Ground Pattern 79X Beer Hall 80 Coaxial Cable 88 Outer cover

Claims

1. A coaxial connector that is attached to the rear end in the front-to-back direction of a coaxial cable and connected to a circuit board, The substrate has an upper surface and a lower surface in the vertical direction perpendicular to the front-rear direction, and two through holes are formed in the substrate that penetrate the substrate in the vertical direction, and a signal line is formed on the upper surface of the substrate, and the signal line is located between the two through holes in the lateral direction perpendicular to both the front-rear direction and the vertical direction, and a ground layer is formed on the lower surface of the substrate. The aforementioned coaxial connector comprises a shell, contacts, a metal nut component, and two screws. The aforementioned shell has a flange portion and two protrusions, Each of the aforementioned protrusions extends rearward from the flange portion. Each of the aforementioned protrusions has an upper through hole formed therein. Each of the upper through holes penetrates the protruding portion in the vertical direction. The aforementioned nut component has a fixed part, a movable part, and two connecting parts. The aforementioned fixing portion is located above the nut component, The movable part is located below the nut component, Each of the aforementioned connecting parts connects the fixed part and the movable part to each other. The fixing portion has two screw holes that correspond to the connecting portion. The movable part has two lower through holes. Each of the aforementioned lower through holes penetrates the movable part in the vertical direction. The nut component is attached to the shell by positioning the fixed portion above the protruding portion, the movable portion below the protruding portion, inserting the substrate between the protruding portion and the movable portion, and screwing the two screws through the lower through hole of the movable portion, the through hole of the substrate, and the upper through hole of the protruding portion into the screw holes of the fixed portion, respectively. Each of the connecting parts of the nut component has an upper connecting part and a lower connecting part. Each of the upper connecting portions is located at the boundary between the connecting portion and the fixing portion. Each of the aforementioned lower connecting portions is located at the boundary between the connecting portion and the movable portion. In each of the aforementioned connecting portions, the lower connecting portion is located in front of the upper connecting portion. The center of each of the aforementioned screw holes is located in front of the corresponding upper connecting portion of the connecting portion. Coaxial connector.

2. A coaxial connector according to claim 1, The aforementioned fixing part has two upper side parts, Each of the aforementioned upper side portions is located on the outer edge of the fixing portion in the lateral direction, The movable part has two lower side parts, Each of the aforementioned lower side portions is located on the outer edge of the movable portion in the lateral direction, Each of the aforementioned connecting parts connects one of the upper side parts to one of the lower side parts. The movable part is a single plate in which the two lower through holes are formed. Coaxial connector.

3. A coaxial connector according to claim 1, The nut component has a downward extension, The aforementioned downward extension extends downward from the rear end of the fixed portion. Coaxial connector.

4. A coaxial connector according to claim 1, The aforementioned shell is provided with a restricting section, The restricting portion is located behind the part of the nut component other than the movable part, and restricts the rearward movement of the fixed part. Coaxial connector.

5. A coaxial connector according to claim 1, Each of the upper connecting portions of the aforementioned connecting portion has a first size in the front-to-back direction. In each of the aforementioned connecting portions, the center of the upper connecting portion in the front-to-back direction and the center of the lower connecting portion in the front-to-back direction are separated by a second size in the front-to-back direction. In each of the aforementioned connecting parts, the second size is greater than or equal to the first size. Coaxial connector.

6. A coaxial connector according to claim 1, Each of the upper connecting portions of the aforementioned connecting portion has a first size in the front-to-back direction. The intermediate portion between the upper connecting portion and the lower connecting portion in each of the aforementioned connecting portions extends along a predetermined direction that intersects both the front-rear direction and the up-down direction. Each of the aforementioned intermediate sections has a third size in a direction perpendicular to the predetermined direction, In each of the aforementioned connecting parts, the first size is equal to or greater than the third size. Coaxial connector.

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