connector

Abstract

A connector that can be made smaller and thinner is provided. [Solution] The connector 60 comprises a terminal member connected to the inner conductor of the coaxial cable, an insulating holder 62 into which the terminal member is inserted to support it, a cylindrical shell 63 connected to the outer conductor of the coaxial cable and covering the outside of the holder 62, and a shielding member 65 in contact with the cylindrical shell 63 to block external electromagnetic waves, the shielding member 65 having a cylindrical main body 65a abutting the cylindrical end of the cylindrical shell 63 and a plurality of bent pieces 65b bent radially outward from one end of the cylindrical main body 65a, the cylindrical shell 63 having a cylindrical main body portion 63a covering the holder 62 and an annular flange portion 63b extending radially outward from the cylindrical main body portion 63a, the bent pieces 65b being arranged in contact with the flange portion 63b and electrically connected to the cylindrical shell 63 via a crimping portion 75 formed on the cylindrical shell 63.

Description

[Technical Field]

[0001] The present invention relates to a connector to which a coaxial cable is electrically connected. [Background technology]

[0002] Conventionally, plugs have been used that include a receptacle that is electrically connected to a board and a connector that is coaxially electrically connected to the receptacle. An example of such a plug is described in Patent Document 1, the source of which is shown below.

[0003] Patent Document 1 describes a plug (called a coaxial connector in Patent Document 1). The connector (called a plug in Patent Document 1) includes a rod-shaped conductive first contact, an insulating holder that inserts and supports the first contact, a conductive first cylindrical shell that covers the outside of the holder, and a conductive shielding member that contacts the first cylindrical shell and blocks external electromagnetic waves. The receptacle of the plug also includes a conductive second contact that is electrically connected to a circuit board and coaxially electrically connectable with the first contact, an insulating case that houses the second contact, and a conductive second cylindrical shell that covers the outside of the case. The shielding member has a cylindrical portion that contacts the first cylindrical shell, an elastically deformable first curved portion that curves radially outward from the cylindrical portion, and a second curved portion that curves radially inward from the first curved portion. The cylindrical portion includes a cylindrical main body that abuts an annular recess in the cylindrical end of the first cylindrical shell and multiple bent pieces that bend radially outward from one end of the cylindrical main body. The ends of the multiple bent pieces are in contact with the inner end surface of the opening side of the block portion of the metal housing (a plug case in Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-174604 Summary of the Invention [Problem to be solved by the invention]

[0005] The shield portion of the plug described in Patent Document 1 has a cylindrical main body with multiple extruded protrusions extruded radially inward by press working so as to contact the outer circumferential surface of the annular recess in the cylindrical end of the first cylindrical shell. These multiple extruded protrusions are arranged at equal intervals in the circumferential direction to correspond to the multiple bent pieces. The cylindrical main body is in close contact with the outer surface of the cylindrical end, and the ends of the multiple bent pieces contact the inner end surface of the opening side of the housing, thereby engaging the shield member with the first cylindrical shell. In this way, the multiple bent pieces contact the housing, and the cylindrical main body including the multiple extruded protrusions contact the outer surface of the cylindrical end, thereby electrically connecting the housing, the first cylindrical shell, and the shield member in an engaged state. For example, when installing electronic components, including such a plug, in a vehicle, miniaturization and low height are required from the perspectives of installation space in the vehicle and fuel efficiency (electricity consumption).

[0006] Therefore, there is a demand for a connector that can be made smaller and thinner. [Means for solving the problem]

[0007] The characteristic configuration of the connector of the present invention is a connector to which a coaxial cable is electrically connected, comprising: a conductive terminal member electrically connected to the inner conductor of the coaxial cable; an insulating holder into which the terminal member is inserted and supported; a conductive cylindrical shell electrically connected to the outer conductor of the coaxial cable and covering the outside of the holder; and a conductive shielding member in contact with the cylindrical shell to block external electromagnetic waves, wherein the shielding member has a cylindrical main body abutting the cylindrical end of the cylindrical shell and a plurality of bent pieces bent radially outward from one end of the cylindrical main body, and the cylindrical shell has a cylindrical main body portion covering the holder and an annular flange portion extending radially outward from the cylindrical main body portion, and the bent pieces are arranged in contact with the flange portion and are electrically connected to the cylindrical shell via a crimping portion formed in a part of the cylindrical shell.

[0008] With this characteristic configuration, the cylindrical shell and the shielding member can be fixed together without providing a functional part for fixing the cylindrical shell and the shielding member together, such as the extrusion convex part described in Patent Document 1. This allows the length of the cylindrical main body to be shortened while maintaining electrical properties, thereby achieving a smaller size and a lower height.

[0009] Preferably, the cylindrical shell has a plurality of the crimped portions arranged in an annular shape.

[0010] With this configuration, for example, when multiple bent pieces are arranged in a ring shape along the circumferential direction at one end of the cylindrical main body, each of the multiple bent pieces is crimped in a ring shape along the circumferential direction by the cylindrical shell, making it difficult for the bent pieces to come off the cylindrical shell.

[0011] Furthermore, it is preferable that the flange portion has a step portion, the step portion has an opposing surface facing the bent piece, the bent piece is arranged in a state of contact with the opposing surface of the step portion, and is electrically connected to the tubular shell via the crimping portion formed on the upper surface of the step portion and crimping the outer edge portion along the circumferential direction of the bent piece.

[0012] With this configuration, the amount of crimping of the cylindrical shell can be reduced by the difference in height between the flange and the top surface, compared to when the crimping portion is provided on the inner edge of the flange. Therefore, the crimping portion can be easily formed. Furthermore, when placing the shielding member on the cylindrical shell, the step portion can be used as a reference, making it easy to position the shielding member relative to the cylindrical shell.

[0013] Alternatively, the flange portion may have a protrusion on the opposing surface facing the bent piece between two adjacent bent pieces along the circumferential direction, and the bent piece may be electrically connected to the cylindrical shell via the crimping portion formed on the top of the protrusion and crimping the radially extending portion of the bent piece.

[0014] With this configuration, the crimping can be performed radially inward from the outer edge of the bent piece, which allows the outer diameter of the cylindrical shell to be reduced. Also, when placing the shielding member on the cylindrical shell, the protrusion can be used as a reference, which makes it easy to position the shielding member relative to the cylindrical shell. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 2 is a diagram schematically illustrating the configuration of a camera unit. [Figure 2] FIG. 2 is a vertical cross-sectional view showing a state before the camera module is inserted into the socket. [Figure 3] FIG. 2 is a vertical cross-sectional view showing a state in which the camera module is inserted into a socket. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. 10 is a plan view of the bent piece in a state where it is crimped by the crimping portion. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 6. [Figure 8] FIG. 10 is a plan view of a bent piece in a state where it is crimped by a crimping portion according to another embodiment. [Figure 9] 9 is a cross-sectional view taken along line IX-IX in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0016] The connector according to the present invention is a miniaturized and low-profile connector. A connector 60 of this embodiment will be described below. Fig. 1 is a diagram schematically showing the configuration of a camera unit U equipped with a socket 100 including the connector 60. Fig. 2 is a vertical cross-sectional view showing a state before a camera module 40 is inserted into the socket 100, and Fig. 3 is a vertical cross-sectional view showing a state after the camera module 40 has been inserted into the socket 100.

[0017] 1, the connector 60 is provided in the socket 100 and is electrically connected to the coaxial cable L. However, the connector 60 is not limited to the following embodiment, and various modifications are possible without departing from the spirit of the invention.

[0018] In this embodiment, the socket 100 is provided in a camera unit U (on-board camera) mounted on a vehicle. The camera unit U is electrically connected to a monitor device (not shown) or an on-board ECU (Electronic Control Unit) provided on the vehicle via a coaxial cable L. The camera unit U can also be used for purposes other than on-board use, such as on a bicycle or drone.

[0019] The coaxial cable L is a communication cable that transmits high-frequency signals. The coaxial cable L is configured by an inner conductor formed of a bundle of copper wires and an outer conductor formed of a mesh-like copper wire surrounding the inner conductor, which are arranged coaxially with a dielectric (insulator) sandwiched between them. The outer conductor functions as a shield to prevent leakage of high-frequency signals and intrusion of external radio waves. The coaxial cable L outputs high-frequency signals output from the camera unit U to the above-mentioned monitor device or on-board ECU. The coaxial cable L also supplies power from the monitor device to the camera unit U. A plug L1 is connected to the tip of the coaxial cable L, and the coaxial cable L and socket 100 are electrically connected via the plug L1.

[0020] The camera unit U includes a camera case H, a camera module 40 housed in the camera case H, and a socket 100 connected to the camera module 40. The camera case H is made of a conductive metal. Note that the orientation in which the camera unit U is used is not particularly limited, but in the following description, the direction in which the socket 100 is viewed from the camera module 40 is referred to as the X1 direction, the opposite direction as the X2 direction, and the direction connecting the X1 direction and the X2 direction as the axial direction X.

[0021] As shown in FIGS. 1 to 3 , the camera module 40 includes an optical system 41, a substrate 44, a camera shield 46, and a receptacle 47. The optical system 41 includes at least one lens into which light from a subject is incident. The optical system 41 and an imaging element 42, such as a charge-coupled device (CCD) or a complementary metal oxide semiconductor (CMOS), are mounted on the X2 side of the substrate 44. The imaging element 42 drives and controls the imaging element 42 and processes the electrical signal output from the imaging element 42. The substrate 44 is rectangular. A receptacle 47 is mounted on the surface of the substrate 44 opposite the surface on which the imaging element 42 is mounted. The electrical signal output from the imaging element 42 is processed by the electronic circuit on the substrate 44, converted into a high-frequency signal, and output from the receptacle 47. The substrate 44 is fixed with screws 43a to a plurality of bosses 43 (four in this embodiment) formed on the rear surface of the optical system 41 in the X1 direction. In this way, the substrate 44 is supported by the optical system 41.

[0022] The camera shield 46 has a rectangular cylindrical shape and is made of metal such as iron. Two contact pieces 46a bent inward are disposed near two diagonal corners of the camera shield 46. The contact pieces 46a are formed by bending a portion of one surface of the camera shield 46.

[0023] The optical system 41, the imaging element 42, the substrate 44, and the receptacle 47 are integrated. The substrate 44 is fixed to a plurality of bosses 43 formed on the optical system 41 with screws 43a. As a result, the imaging element 42, the substrate 44, and a portion of the receptacle 47 are disposed in the space inside the camera shield 46. In other words, the camera shield 46 is disposed on the outer surface of the camera module 40.

[0024] The receptacle 47 includes a first contact 47a, a ground contact 47b, and an insulator 47c. The first contact 47a transmits high-frequency signals. The ground wiring is a wiring at ground potential. When the ground wiring of the substrate 44 comes into contact with and is electrically connected to the contact piece 46a of the camera shield 46, the ground wiring of the substrate 44 and the ground contact 47b are electrically connected to the camera shield 46, and all of these are at ground potential. The insulator 47c electrically insulates the first contact 47a from the ground contact 47b.

[0025] Next, the configuration of the socket 100 will be described. As shown in FIGS. 1 to 3, the socket 100 includes a housing 10, a socket shield 20, and a connector 60. The housing 10 is made of an insulating material such as resin and has a cylindrical body 14 and a mating portion 16 extending from the cylindrical body 14 in the X1 direction. The cylindrical body 14 has a rectangular cylindrical shape when viewed in the axial direction X (hereinafter also referred to as a plan view). Hereinafter, an axis passing through the intersection of the diagonals of the rectangle of the cylindrical body 14 in the plan view and parallel to the axial direction X will be referred to as the central axis Y. Furthermore, the end of the cylindrical body 14 in the X2 direction will be referred to as the opening 14b, and the space connected to the opening 14b and defined by the cylindrical body 14 will be referred to as the internal space 14a. Furthermore, the surface of the wall constituting the cylindrical body 14 that faces the internal space 14a will be referred to as the inner wall surface 14c.

[0026] 2 and 3, camera module 40 is configured to be insertable into internal space 14a from opening 14b with camera shield 46 facing cylindrical body 14. That is, when camera module 40 is inserted into cylindrical body 14 of housing 10, camera shield 46 and inner wall surface 14c face each other with socket shield 20 sandwiched therebetween.

[0027] The end of the cylindrical body 14 of the housing 10 in the X1 direction is a first bottom 14d, and a recess 14e that is recessed in a circular shape in a plan view from the first bottom 14d toward the X1 direction is formed in the center of the first bottom 14d. A first through-hole 14g is formed in the center of a second bottom 14f, which is the bottom of the recess 14e. A connector 60 is disposed in the second bottom 14f, passing through the first through-hole 14g. The connector 60 is disposed coaxially with the central axis Y, extending from the internal space 14a of the cylindrical body 14 to the fitting portion 16.

[0028] The socket shield 20 is a plate-like component made of metal such as iron. The socket shield 20 is formed by pressing a metal plate. The socket shield 20 has a cylindrical plate portion 22 that is rectangular in shape in a plan view, a bottom plate portion 24 formed at the end of the cylindrical plate portion 22 in the X1 direction, and a recessed plate portion 26 recessed from the center of the bottom plate portion 24 in the X1 direction.

[0029] The recessed plate portion 26 has a circular shape in a plan view and includes a side plate 26a and a bottom plate 26b. The side plate 26a is a truncated conical cylinder whose diameter decreases in the X1 direction, and is disposed between the bottom plate portion 24 and the bottom plate 26b. The side plate 26a is formed with a plurality of (eight in this embodiment) second through holes 26c, which are circular holes, equally spaced around the central axis Y in the circumferential direction.

[0030] The bottom plate 26b has a circular plate shape. A third through-hole 26e, which is a circular hole, is disposed on the radially inner side of the bottom plate 26b. A connector 60 is disposed to pass through the third through-hole 26e.

[0031] The surface of the cylindrical plate portion 22 of the socket shield 20 opposite the inner plate surface 22a is in close contact with the inner wall surface 14c of the cylindrical body 14 of the housing 10, and the surface of the bottom plate portion 24 opposite the surface facing the internal space 14a is in close contact with the first bottom portion 14d of the housing 10. That is, the surfaces of the cylindrical plate portion 22 and the bottom plate portion 24 of the socket shield 20 that face the internal space 14a are exposed. Meanwhile, the recessed plate portion 26 of the socket shield 20 is embedded inside the housing 10. At this time, the second through-hole 26c is filled with the resin of the housing 10, thereby tightly fixing the socket shield 20 to the housing 10. The third through-hole 26e is exposed and not covered by the housing 10.

[0032] As shown in FIGS. 4 and 5 , the connector 60 includes a terminal member 61, a holder 62, a cylindrical shell 63, a bushing 64, and a shield member 65. The terminal member 61 is made of a conductive metal or the like and has a rod shape arranged along the axial direction X so as to be coaxial with the central axis Y. One end of the terminal member 61 is a first contact end 61a that can be electrically connected to the first contact 47a of the receptacle 47 of the camera module 40, and the other end is a second contact end 61b that can be electrically connected to the inner conductor of the coaxial cable L via the plug L1. The holder 62 is made of an insulating resin material and is disposed on the outer peripheral surface of the terminal member 61 in the middle of the axial direction X. The holder 62 is formed integrally with the terminal member 61 by insert molding. This allows the holder 62 to support the terminal member 61 inserted therein. The bushing 64 is made of an elastic material such as rubber and has a through-hole formed in its center along the axial direction X, through which the terminal member 61 can be inserted. By providing the bushing 64, it is possible to prevent moisture from entering from the second contact end 61b side of the terminal member 61.

[0033] The cylindrical shell 63 is made of a conductive metal, is electrically connected to the outer conductor of the coaxial cable L, and covers the outside of the holder 62. The cylindrical shell 63 includes a substantially cylindrical cylindrical main body 63a that covers the holder 62, and an annular plate-shaped flange 63b that extends radially outward from the cylindrical main body 63a relative to the central axis Y. As shown in FIGS. 2 and 3 , a plate-shaped third support portion 63c having a central hole through which the terminal member 61 can be inserted is formed in the space inside the cylindrical main body 63a. A bushing 64 is disposed on the X2-direction side of the third support portion 63c so as to be in contact with the third support portion 63c, and the holder 62 is disposed on the X2-direction side of the bushing 64. The outer diameter of the holder 62 is slightly larger than that of the bushing 64, and a step corresponding to the difference in outer diameter is formed in the cylindrical main body 63a of the cylindrical shell 63 between a portion where the bushing 64 is disposed and a portion where the holder 62 is disposed. The holder 62 is supported by the step, and no pressure from the holder 62 acts on the bushing 64. The second contact end 61b of the terminal member 61 is exposed on the X1 direction side of the third support portion 63c. The tip of the cylindrical main body portion 63a is located within the fitting portion 16 of the housing 10.

[0034] As shown in FIG. 4 , the flange portion 63b has a stepped portion 80. In this embodiment, the stepped portion 80 is circular in plan view. Therefore, it can be easily formed by cutting. The stepped portion 80 has an opposing surface 81 that faces the bent piece 65b of the shield member 65. The opposing surface 81 corresponds to the bottom surface of the stepped portion 80. The bent piece 65b is provided in contact with this opposing surface 81. The outer edge of the X1-direction surface of the flange portion 63b is in contact with the X2-direction surface of the bottom plate 26b of the recessed plate portion 26 of the socket shield 20, and the cylindrical shell 63 is electrically connected to the socket shield 20. The contact point between the flange portion 63b and the bottom plate 26b and its surrounding area are embedded inside the housing 10. As a result, the cylindrical shell 63 is tightly and securely fixed to the housing 10 and the socket shield 20.

[0035] The shielding member 65 is made of an elastic, conductive metal and contacts the cylindrical shell 63 to block external electromagnetic waves. The shielding member 65 includes an annular cylindrical main body 65a, a bent piece 65b, and a connecting portion 65c. The bent piece 65b is bent radially outward from one end of the cylindrical main body 65a. In this embodiment, multiple bent pieces 65b (eight in this embodiment) are provided at equal intervals along the circumferential direction on the end portion of the cylindrical main body 65a facing the X1 direction (the side where the cylindrical shell 63 is disposed). Multiple connecting portions 65c (eight in this embodiment) are provided at equal intervals along the circumferential direction on the end portion of the cylindrical main body 65a facing the X2 direction (the side facing the internal space 14a). The bent piece 65b faces the connecting portion 65c across the cylindrical main body 65a. Each of the multiple bent pieces 65b is positioned so as to overlap with a corresponding one of the multiple connecting portions 65c in a plan view.

[0036] As shown in FIG. 3 , the cylindrical main body 65a has a plate surface parallel to the axial direction X, and its end in the X1 direction abuts against the cylindrical end of the cylindrical shell 63. That is, the cylindrical main body 65a is in close contact with the outer peripheral surface of the cylindrical main body portion 63a in the X2 direction. This fixes the shielding member 65 to the cylindrical shell 63 and electrically connects the shielding member 65 to the cylindrical shell 63. Each of the multiple bent pieces 65b extends perpendicular to the cylindrical main body 65a and radially outward from the central axis Y, and is equally spaced along the circumferential direction. The multiple bent pieces 65b are provided so as to enter a stepped portion 80 of the flange portion 63b of the cylindrical shell 63, elastically deform, and contact an opposing surface 81, which is the bottom surface of the stepped portion 80. Even when the multiple bent pieces 65b are in contact with the opposing surface 81 of the stepped portion 80, the upper surface 82 of the stepped portion 80 is located closer to the X2 direction than the bent pieces 65b.

[0037] Each of the multiple connection portions 65c is a plate-like member, and extends from an end portion of the cylindrical main body 65a in the X2 direction as a base end along the axial direction X. Specifically, the connection portions 65c are curved in a wavy manner along the axial direction X, and are curved so as to bulge radially outward from the cylindrical main body 65a, then curved so as to bulge radially inward, and finally curved so as to bulge radially outward again.

[0038] The bent piece 65b of the shielding member 65 is electrically connected to the cylindrical shell 63 via a first crimping portion 75 (an example of a "crimping portion") formed on a part of the cylindrical shell 63. FIG. 6 shows a plan view of the bent piece 65b in a state where it has been crimped by the first crimping portion 75. FIG. 7 shows a cross-sectional view taken along line VII-VII in FIG. 6. In this embodiment, the step portion 80 is formed in a stepped shape having a bottom surface that corresponds to the above-mentioned opposing surface 81 and an upper surface 82. The first crimping portion 75 is formed at the radially inner end of the upper surface 82 of the step portion 80.

[0039] The radially inner end of this upper surface 82 is crushed (pressed) to form the first crimping portion 75. The first crimping portion 75 crimps the outer edge portion 65b1 along the circumferential direction of the bent piece 65b. As a result, the first crimping portion 75 crimps the bent piece 65b, and the bent piece 65b is electrically connected to the cylindrical shell 63 via the first crimping portion 75.

[0040] 6, a plurality of bent pieces 65b (eight in this embodiment) are provided at equal intervals along the circumferential direction on the end portion of the cylindrical main body 65a on the X1 direction side. Each of the bent pieces 65b is crimped by a first crimping portion 75. Therefore, the cylindrical shell 63 is provided with a plurality of first crimping portions 75 (eight in this embodiment) in an annular shape.

[0041] Other Embodiments In the above embodiment, the cylindrical shell 63 has been described as having eight annular first crimping portions 75. However, the number of first crimping portions 75 provided on the cylindrical shell 63 may be one, or, for example, two to seven in number along the radial direction. Furthermore, nine or more first crimping portions 75 may be provided along the radial direction.

[0042] In the above embodiment, the step portion 80 has been described as having the opposing surface 81 and the upper surface 82. However, the step portion 80 can also be configured without the upper surface 82. In this case, the inner peripheral edge of the flange portion 63b can be crushed to form the first crimping portion 75. The step portion 80 can also be configured by further providing at least one surface different from the opposing surface 81 and the upper surface 82.

[0043] In the above embodiment, the bent pieces 65b are provided in contact with the opposing surface 81 of the stepped portion 80 and are electrically connected to the cylindrical shell 63 via first crimping portions 75 formed on the upper surface 82 of the stepped portion 80 and crimping the circumferentially extending outer edge portions 65b1 of the bent pieces 65b. However, as shown in FIGS. 8 and 9 (wherein FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8), the flange portion 63b may have protrusions 85 between two adjacent bent pieces 65b along the circumferential direction on the opposing surface 81 facing the bent pieces 65b, and the bent pieces 65b may be electrically connected to the cylindrical shell 63 via second crimping portions 76 (an example of a "crimping portion") formed on the tops 85A of the protrusions 85 and crimping the radially extending portions 65b2 of the bent pieces 65b. Even in this configuration, the cylindrical shell 63 and the shielding member 65 can be easily electrically connected. The cylindrical shell 63 having such protrusions 85 can be produced by die casting.

[0044] Furthermore, the bent piece 65b may be electrically connected to the cylindrical shell 63 via a first crimping portion 75 formed on the upper surface 82 of the step portion 80 and crimping an outer edge portion 65b1 along the circumferential direction of the bent piece 65b, and may also be electrically connected to the cylindrical shell 63 via a second crimping portion 76 formed on the top 85A of the protrusion 85 and crimping an extending portion 65b2 along the radial direction of the bent piece 65b. [Industrial Applicability]

[0045] The present invention can be used in a connector to which a coaxial cable is electrically connected. [Explanation of symbols]

[0046] 60: Connector 61: Terminal material 62: Holder 63: Cylindrical shell 63a: Cylindrical main body 63b: Flange part 65: Shielding material 65b: Bent piece 75: First crimping part (crimping part) 76: Second crimping part (crimping part) 80: Step 81: Opposite surface 82:Top surface L: Coaxial cable

Claims

1. A connector to which a coaxial cable is electrically connected, The coaxial cable includes a conductive terminal member electrically connected to an inner conductor of the coaxial cable, an insulating holder into which the terminal member is inserted and supported, a conductive cylindrical shell electrically connected to an outer conductor of the coaxial cable and covering the outside of the holder, and a conductive shielding member in contact with the cylindrical shell to block external electromagnetic waves, the shield member has a cylindrical main body that abuts against the cylindrical end of the cylindrical shell, and a plurality of bent pieces that are bent radially outward from one end of the cylindrical main body, the cylindrical shell has a cylindrical main body portion that covers the holder and an annular flange portion that extends radially outward from the cylindrical main body portion, The bent piece is provided in contact with the flange portion and is electrically connected to the cylindrical shell via a crimped portion formed on a part of the cylindrical shell.

2. The connector according to claim 1 , wherein the cylindrical shell has a plurality of the crimping portions arranged in an annular shape.

3. The flange portion has a step portion, the step portion has an opposing surface facing the bent piece, 3. A connector as described in claim 1 or 2, wherein the bent piece is arranged in contact with the opposing surface of the step portion, and is electrically connected to the tubular shell via the crimping portion formed on the upper surface of the step portion and crimping the outer edge portion along the circumferential direction of the bent piece.

4. the flange portion has a protrusion between two adjacent bent pieces along the circumferential direction on an opposing surface facing the bent pieces, 3. A connector as described in claim 1 or 2, wherein the bent piece is electrically connected to the tubular shell via the crimped portion formed on the top of the protrusion and crimping the radially extending portion of the bent piece.

Images