Connector

Abstract

To obtain a desired contact weight when connecting a connector conductor to a mating side connector.SOLUTION: A connector 60 has a connector conductor 90. The connector conductor contains: a cylinder part 82; and elastic pieces 90 and 96 that are extended from an open edge of the cylinder part, and includes: a cylinder formation part 86 that forms a cylinder shape; a first end part 84 of a middle direction in the cylinder formation part; a second end part 88 of a peripheral direction in the peripheral direction that is overlapped with the first end part; and a fixing part 83 that holds the first and second end parts in an overlapping state. The elastic pieces include the end part elastic piece 90, and at least one part of the end part elastic piece is extended toward one side of a central axis direction of the cylinder part from the open edge of the first end part, and a slit 84S is formed in the first end part between the fixing part and the end part elastic piece.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to connectors. [Background technology]

[0002] Patent Document 1 discloses a coaxial connector that includes contacts, a synthetic resin insulator that holds the contacts, and a metal shell that houses the insulator. The metal shell has a mating portion formed in a substantially cylindrical shape that mates with a mating male connector. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-297491 A Summary of the Invention [Problem to be solved by the invention]

[0004] The metal shell described in Patent Document 1 can function as a connector conductor including a cylindrical fitting portion. It is desirable to obtain a desired contact load when connecting such a connector conductor to a mating male connector.

[0005] Therefore, an object of the present disclosure is to make it possible to obtain a desired contact load when connecting a connector conductor to a mating connector. [Means for solving the problem]

[0006] The connector of the present disclosure is a connector having a connector conductor, the connector conductor including a tubular portion and an elastic piece extending from an opening edge of the tubular portion, the tubular portion having a tubular-shaped tube-forming portion, a first circumferential end portion of the tube-forming portion, a second circumferential end portion of the tube-forming portion that is overlapped with the first end portion, and a fixing portion that keeps the first end portion and the second end portion overlapped, the elastic piece including an end elastic piece, at least a portion of the end elastic piece extending from the opening edge of the first end portion toward one side in the central axial direction of the tubular portion, and a slit formed in the first end portion between the fixing portion and the end elastic piece. Effect of the Invention

[0007] According to the present disclosure, a desired contact load can be easily obtained when connecting a connector conductor to a mating connector. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a device equipped with a coaxial connector according to an embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Diagram 3] FIG. 3 is a perspective view showing a coaxial connector. [Figure 4] FIG. 4 is an exploded perspective view showing a coaxial connector. [Diagram 5] FIG. 5 is a bottom view showing the coaxial connector. [Figure 6] FIG. 6 is a perspective view showing the outer conductor. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.

[0010] The connectors of the present disclosure are as follows.

[0011] (1) A connector having a connector conductor, the connector conductor including a tubular portion and an elastic piece extending from an opening edge of the tubular portion, the tubular portion having a tubular-shaped tube-forming portion, a first circumferential end portion of the tube-forming portion, a second circumferential end portion of the tube-forming portion that is overlapped with the first end portion, and a fixing portion that maintains the first end portion and the second end portion in an overlapped state, the elastic piece including an end elastic piece, at least a portion of the end elastic piece extending from the opening edge of the first end portion toward one side in a central axial direction of the tubular portion, and a slit formed in the first end portion between the fixing portion and the end elastic piece.

[0012] According to the present disclosure, the first end and the second end are firmly fixed by the fixing portion, so that the tubular portion is easily maintained in a constant shape. In addition, since a slit is formed between the fixing portion and the end elastic piece of the first end, even if the first end and the second end are firmly fixed by the fixing portion, the effect of the processing for fixing is unlikely to extend to the end elastic piece. Therefore, the elastic piece including the end elastic piece is easily held firmly in a constant position suitable for connection with the mating connector, and the desired contact load is easily obtained.

[0013] (2) In the connector of (1), the slit may extend along a circumferential direction of the cylindrical portion.

[0014] As a result, compared to when the slits are formed obliquely relative to the circumferential direction of the tubular portion, the slits are short and the effect of the processing for fixing the first end and the second end is less likely to affect the end elastic pieces.

[0015] (3) In the connector according to (1) or (2), the fixing portion may be a crimping fixing portion.

[0016] If the fixing portion is a crimping fixing portion, the conductor for a connector can be manufactured at low cost compared to a case in which the conductor for a connector is formed by cutting or welding a plate material.

[0017] (4) In the connector of any one of (1) to (3), the second end may overlap the first end on both sides of the slit in the central axis direction of the cylindrical portion.

[0018] In this case, the first end portion can be held in a fixed position by overlapping with the second end portion on the side closer to the end elastic piece than the slit, which makes it easier to hold the elastic piece including the end elastic piece more firmly in a fixed position suitable for connection with the mating connector and to obtain the desired contact load.

[0019] (5) In any one of the connectors (1) to (4), the distance between the slit and the end elastic piece may be greater than or equal to the distance between the slit and the edge of the tubular portion opposite the end elastic piece.

[0020] In this case, since the slit and the fixing portion are separated from the end elastic piece, the processing of the fixing portion is unlikely to affect the end elastic piece. Since the portion of the first end to which the end elastic piece is connected can be made wider, it is easy to hold the end elastic piece firmly.

[0021] (6) A connector according to any one of (1) to (5), wherein the end elastic piece has a contact portion that contacts a mating conductor, the contact portion faces one of the inner and outer radial sides of the tubular portion, and the second end portion may be overlapped with the first end portion on the opposite side to the orientation of the contact portion in the radial direction of the tubular portion.

[0022] In this case, when the contact portion comes into contact with the mating conductor, a force acts on the end elastic piece in the opposite direction to the direction in which the contact portion faces. This force can be received by the second end portion. Therefore, when the end elastic piece is brought into contact with the mating conductor, the base end portion of the end elastic piece is less likely to be displaced, making it easier to obtain the desired contact load.

[0023] (7) In the connector of (6), the contact portion faces outward in the radial direction of the tubular portion, the first end and the tubular portion are connected to form a tubular shape of the same diameter, and the second end is overlapped on the inside of the first end and protrudes further inward than the tubular portion.

[0024] This allows the end elastic piece to be effectively received when the connector conductor is connected to the mating conductor by insertion. Since the first end and the tube-forming portion are connected to form a tube shape of the same diameter, when another elastic piece is extended from the tube-forming portion, it is easy to maintain the same elastic properties between the end elastic piece and the other elastic piece. In addition, by projecting the second end further inward than the tube-forming portion, it is easy to position the second end with respect to a member inside the tube portion.

[0025] (8) A connector according to any one of (1) to (7), wherein the end elastic piece includes a base end extending from a base end of the end elastic piece along the central axis direction of the tubular portion, and an inclined portion extending from a tip of the base end at an angle with respect to the central axis, and an edge of the second end from which the end elastic piece extends may be located between the base end of the end elastic piece and the boundary between the base end and the inclined portion.

[0026] This allows the base end of the end elastic piece to be effectively received by the second end.

[0027] (9) A connector according to any one of (1) to (8), wherein the elastic piece further includes at least one additional elastic piece extending from the opening edge of the tubular portion, and the end elastic piece and the at least one additional elastic piece may be arranged at intervals in the circumferential direction of the tubular portion.

[0028] This allows the connector conductor to be satisfactorily electrically connected to the mating conductor.

[0029] (10) A connector according to any one of (1) to (9), further comprising an inner conductor and an insulator in which the inner conductor is housed, the insulator being housed within the tubular portion.

[0030] In this case, in a connector having an inner conductor, an insulator in which the inner conductor is housed, and a connector conductor as an outer conductor housing the insulator, the connector conductor can be satisfactorily electrically connected to the mating conductor.

[0031] (11) In the connector of (10), a recess may be formed on an outer peripheral surface of the insulator, the second end may be located closer to the inner peripheral side of the tubular portion than the first end, and the second end may be fitted into the recess.

[0032] This allows the second end to be utilized to position the connector conductor relative to the insulator.

[0033] (12) In the connector of (11), the bottom surface of the recess may be formed in a position that receives displacement of the second end portion toward the inner periphery.

[0034] In this case, the second end portion and the first end portion are less likely to be displaced inwardly, and as a result, the end elastic piece is also less likely to be displaced inwardly.

[0035] (13) In the connector of (12), the bottom surface of the recess may be formed at a position closer to the end elastic piece than the slit and at a position that receives displacement of the second end toward the inner circumference.

[0036] In this case, the bottom surface of the recess receives the displacement of the second end portion toward the inner periphery at a position close to the end elastic piece, so that the end elastic piece is less likely to be displaced toward the inner periphery.

[0037] (14) In any one of the connectors (11) to (13), the insulator may have a receiving surface at a position closer to the end elastic piece than the recess to receive displacement of the connector conductor toward the inner circumference.

[0038] With this, the second end portion can be positioned by the recess, while the receiving surface can suppress displacement of the conductor for connector toward the inner periphery side.

[0039] [Details of the embodiment of the present disclosure] Specific examples of the connector of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0040] [Embodiment] A connector according to an embodiment will be described below. In this embodiment, an example in which the connector is a coaxial connector will be described. Note that a coaxial connector is a connector in which an outer conductor and an inner conductor therein are positioned coaxially. It is not essential that the connector is a coaxial connector, and for example, multiple inner conductors may be positioned within the outer conductor.

[0041] <Overall configuration of the equipment> A description will be given of an example of a device 10 equipped with a coaxial connector 60. Fig. 1 is a perspective view showing a device 10 equipped with a coaxial connector 60. Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1.

[0042] The device 10 is, for example, a camera device. The camera device is, for example, a device mounted on a vehicle. The device 10 does not have to be a camera device.

[0043] The device 10 includes a case 12 and an electric component 20. The electric component 20 is accommodated in the case 12. A coaxial connector 60 is fixed to the electric component 20.

[0044] The case 12 includes a first case 13 and a second case 14. The first case 13 and the second case 14 are formed of, for example, resin. The first case 13 and the second case 14 are combined to form the rectangular box-shaped case 12 that houses the electric components 20. If the device 10 is a camera device, it is assumed that the first case 13 has a lens or window for capturing images, and the second case 14 has a coaxial connector 30 for external connection.

[0045] The coaxial connector for external connection 30 is a coaxial connector for connecting the electrical component 20 to an external electrical component. For example, the coaxial connector for external connection 30 is a coaxial connector to which a cable connected to the external electrical component is connected. The cable to which the coaxial connector for external connection 30 is connected is, for example, a coaxial cable.

[0046] More specifically, a holding tube portion 16 is provided to protrude from the bottom 15 of the case 12. The holding tube portion 16 is a cylinder and protrudes outward from the center of the bottom portion 15. The inner opening of the holding tube portion 16 opens into the second case 14, and the outer opening of the holding tube portion 16 opens to the outside of the second case 14. A holding partition portion 17 is formed in the middle portion of the holding tube portion 16 in the direction along the central axis X (axial direction). In this embodiment, the holding partition portion 17 is formed in the middle portion of the holding tube portion 16 in the direction along the central axis X, near the inner opening. The holding partition portion 17 divides the space of the holding tube portion 16 into the space on the inner opening side and the space on the outer opening side. A holding hole 17h is formed in the holding partition portion 17, and the coaxial connector 30 for external connection is inserted and held in the holding hole 17h.

[0047] In this embodiment, a locking protrusion 18a for holding a cable connector attached to an end of a cable is formed on the outer periphery of the holding tube portion 16. It is not essential that the locking protrusion 18a is formed.

[0048] The coaxial connector 30 for external connection comprises an inner conductor 32 for external connection, an insulator 34 for external connection, and an outer conductor 36 for external connection.

[0049] The external connection inner conductor 32 is formed in a long and thin rod shape and is made of a conductive material such as metal. The external connection insulator 34 is made of an insulator such as resin and surrounds the periphery of the external connection inner conductor 32. In this embodiment, the external connection insulator 34 is a dielectric. The external connection outer conductor 36 is made of a conductive material such as metal. The external connection outer conductor 36 is formed in a tubular shape that surrounds the periphery of the external connection insulator 34.

[0050] The electric component 20 is, for example, a mounting board on which electronic components are mounted. When the device 10 is a camera device, the electric component 20 is assumed to be a circuit board 21 and an image sensor 22 mounted on the circuit board 21. The image sensor 22 faces an image capturing lens or window in the first case 13, and captures an image of the outside scenery by rotating the lens or window. Hereinafter, the first case 13 side to which the image sensor 22 faces may be referred to as the front side, and the opposite second case 14 side may be referred to as the rear side.

[0051] In this embodiment, the coaxial connector 60 is located on the surface of the circuit board 21 opposite to the imaging element 22. The coaxial connector 60 is fixed to the circuit board 21 and protrudes from the circuit board 21 toward the coaxial connector 30 for external connection. The coaxial connector 60 is a board-side coaxial connector. The coaxial connector 60 includes, for example, an inner conductor 62, an insulator 70, and an outer conductor 80. A movable-side inner conductor 42, which will be described later, is connected to the inner conductor 62. The insulator 70 surrounds the inner conductor 62. The outer conductor 80 surrounds the insulator 70. That is, the inner conductor 62, the insulator 70, and the outer conductor 80 are concentrically arranged in this order from the center toward the outer periphery.

[0052] The coaxial connector 60 and the coaxial connector for external connection 30 are connected via the relay connector 40. The relay connector 40 includes, for example, a movable inner conductor 42, a movable insulator 44, and a movable outer conductor 46. The movable inner conductor 42 is surrounded by the movable insulator 44. In this embodiment, the movable insulator 44 is a dielectric. The movable outer conductor 46 surrounds the movable insulator 44. The movable inner conductor 42 is an example of a mating inner conductor connected to the inner conductor 62, the movable outer conductor 46 is an example of a mating outer conductor connected to the outer conductor 80, and the relay connector 40 is an example of a mating coaxial connector connected to the coaxial connector 60.

[0053] The relay connector 40 is connected to the coaxial connector 60 with the movable-side inner conductor 42 inserted and connected to the inner conductor 62 and the outer conductor 80 inserted and connected to the movable-side outer conductor 46. In this state, the relay connector 40 further protrudes from the coaxial connector 60 toward the coaxial connector for external connection 30. The external connection inner conductor 32 is inserted and connected to the movable-side inner conductor 42 and the movable-side outer conductor 46 is inserted and connected to the external connection outer conductor 36, thereby connecting the relay connector 40 to the coaxial connector for external connection 30. In this way, the relay connector 40 relays and connects the coaxial connector 60 and the coaxial connector for external connection 30.

[0054] As a result, when an external cable is connected to the coaxial connector 30 for external connection, an external electrical component to which the cable is connected is electrically connected to the electrical component 20 inside the case 12 .

[0055] In the connected state of the relay connector 40 and the coaxial connector 60, the movable-side inner conductor 42 is inserted and connected in a tilted state relative to the inner conductor 62. Also, the outer conductor 80 is inserted and connected in a tilted state relative to the movable-side outer conductor 46. That is, the relay connector 40 can be connected in a tilted state relative to the coaxial connector 60 (see arrow P1 in FIG. 2). As a result, even if the coaxial connector 60 and the external-connection coaxial connector 30 are misaligned from their coaxially opposing positions during the assembly work of the device 10 or in the completed state (see arrow P2 in FIG. 2), the misalignment is absorbed by the inclination of the relay connector 40 relative to the coaxial connector 60.

[0056] <About coaxial connectors> The coaxial connector 60 will be described in detail. Fig. 3 is a perspective view showing the coaxial connector 60. Fig. 4 is an exploded perspective view showing the coaxial connector 60. Fig. 5 is a bottom view showing the coaxial connector 60.

[0057] As described above, coaxial connector 60 includes, for example, inner conductor 62, insulator 70, and outer conductor 80.

[0058] The inner conductor 62 is an elongated conductive member (see FIGS. 2 and 4). In this embodiment, the inner conductor 62 is formed by pressing a metal plate. More specifically, the inner conductor 62 includes a base end tube portion 64 and a plurality of elastic pieces 66.

[0059] The base end tubular portion 64 is formed in a tubular shape, more specifically, in a cylindrical shape. The base end tubular portion 64 is accommodated in the base end side of the insulator 70. Note that, in the coaxial connector 60, the tip is the end on the side to which the movable-side inner conductor 42 is connected, and the base end is the end opposite to the tip, in this case, the end on the side facing the circuit board 21.

[0060] An extension piece 64a extends from the base end edge of the base end tubular portion 64 toward the inside of the base end tubular portion 64. The extension piece 64a is soldered to the circuit of the circuit board 21, for example.

[0061] The base end tube portion 64 may have a positioning protrusion 64P that partially protrudes outward in the circumferential direction. The positioning protrusion 64P may be fitted into a recess in the insulator 70, thereby positioning the inner conductor 62 with respect to the insulator 70.

[0062] A locking protrusion 64b is provided on the base end tubular portion 64. The locking protrusion 64b partially protrudes from the outer periphery of the base end tubular portion 64. The locking protrusion 64b is formed in a shape such that the protruding dimension gradually increases from the tip of the base end tubular portion 64 toward the base end. When the base end tubular portion 64 is inserted into the insulator 70, the locking protrusion 64b gets caught on the inner periphery of the insulator 70, and the inner conductor 62 is held in a state where it is prevented from slipping out of the insulator 70.

[0063] The multiple elastic pieces 66 protrude further toward the distal end from the distal opening of the base end tubular portion 64. Preferably, the multiple elastic pieces 66 are positioned at equal intervals around the central axis X of the tubular portion 72. In this embodiment, the two elastic pieces 66 face each other around the central axis X of the base end tubular portion 64.

[0064] The movable-side inner conductor 42 of the relay connector 40 is inserted from the tip side of the two elastic pieces 66 toward between the two elastic pieces 66. The movable-side inner conductor 42 is sandwiched between the two elastic pieces 66, whereby the movable-side inner conductor 42 is connected to the inner conductor 62.

[0065] The insulator 70 is made of resin or the like. A dielectric can be understood as a type of insulator, and the insulator 70 is also a dielectric. The insulator 70 is, for example, a molded resin part.

[0066] The insulator 70 includes a cylindrical portion 72 and a tip guide portion 76 .

[0067] The tubular portion 72 is formed in a tubular shape capable of accommodating the inner conductor 62. In this embodiment, the tubular portion 72 is formed in a cylindrical shape, and a columnar space is formed therein. The inner conductor is accommodated in the columnar space.

[0068] The outer peripheral surface of the cylindrical portion 72 is formed into a circumferential surface shape centered on the central axis X. The outer conductor 80 is disposed on the outer peripheral side of the cylindrical portion 72. A positioning recess 72g is formed in a part of the circumferential direction of the outer peripheral portion of the cylindrical portion 72. The recess 72g has a pair of side surfaces 72g1 facing each other in the circumferential direction of the cylindrical portion 72 and a surface 72g2 facing the base end side of the cylindrical portion 72 (see FIG. 4). A second end portion 88, which will be described later, fits into the recess 72g. In this state, the position of the second end portion 88 is restricted by the pair of side surfaces 72g1 and the surface 72g2. This restricts the outer conductor 80, which is fitted on the outside of the insulator 70, from rotating around the central axis X with respect to the insulator 70 and from moving toward the tip side.

[0069] A plurality of (four in this embodiment) elongated protrusions 72a are formed on the outer circumferential surface of the cylindrical portion 72. Each of the protrusions 72a extends parallel to the central axis X. The plurality of protrusions 72a are preferably positioned at equal intervals around the central axis X on the outer circumferential surface of the cylindrical portion 72. The protrusions 72a contact the inner circumferential surface of the cylindrical portion 82 at positions distributed in the circumferential direction.

[0070] The tip guide portion 76 is located on the tip side of the cylindrical portion 72. The tip guide portion 76 has an insertion hole 77 into which the movable-side inner conductor 42 can be inserted. The central axis X of the cylindrical portion 72 coincides with the central axis X of the insertion hole 77.

[0071] The inner peripheral surface of the insertion hole 77 is formed in a tapered shape that gradually reduces in diameter toward the inside of the cylindrical portion 72. The tip end of the movable-side inner conductor 42 is guided toward between the multiple elastic pieces 66 by the tapered inner peripheral surface of the insertion hole 77.

[0072] In addition, the outer periphery of the tip guide portion 76 protrudes further outward than the tubular portion 72. An outer periphery guide surface 78 that gradually expands in diameter toward the base end side is formed on the outer periphery of the tip guide portion 76. The outer periphery guide surface 78 serves to guide the tubular portion of the movable-side outer conductor 46 to the outside of the outer conductor 80.

[0073] The annular back surface of the tip guide portion 76 facing the base end side extends perpendicular to the central axis X of the tubular portion 72. Elastic pieces 90, 96, which will be described later, can elastically deform in the radial direction of the tubular portion 72 on the base end side of the annular back surface.

[0074] The outer conductor 80 is made of a conductive material such as metal, and surrounds the insulator 70. The outer conductor 80 is formed, for example, by pressing a metal plate.

[0075] The outer conductor 80 includes a tubular portion 82 and elastic pieces 90 and 96. In this embodiment, the outer conductor 80 includes an end elastic piece 90 and an additional elastic piece 96 as the elastic pieces.

[0076] The tubular portion 82 is formed in a tubular shape in which the tubular portion 72 can be disposed. An end elastic piece 90 and at least one additional elastic piece 96 extend from the tip-side opening edge of the tubular portion 82. The end elastic piece 90 and the at least one additional elastic piece 96 are arranged at intervals in the circumferential direction of the tubular portion 82. In this embodiment, there is one end elastic piece 90 and seven additional elastic pieces 96. These end elastic piece 90 and the at least one additional elastic piece 96 are arranged at equal intervals in the circumferential direction of the tubular portion 82.

[0077] With the base end of the insulator 70 housed within the tubular portion 82, these end elastic pieces 90 and at least one additional elastic piece 96 surround the tubular portion 72 between the tip guide portion 76 and the tubular portion 82.

[0078] The movable-side outer conductor 46 of the relay connector 40 is guided by the outer circumferential guide surface 78 of the tip guide portion 76 to the outer circumferential side of the end elastic piece 90 and the additional elastic piece 96. As a result, the end elastic piece 90 and the additional elastic piece 96 come into contact with the movable-side outer conductor 46 from the inner circumferential side, and the outer conductor 80 and the movable-side outer conductor 46 are connected.

[0079] <About the outer conductor> The outer conductor 80, which is an example of a conductor for a connector, will be described in more detail. Fig. 6 is a perspective view showing the outer conductor 80. Fig. 7 is a cross-sectional view taken along line VII-VII in Fig. 5.

[0080] As shown in FIGS. 3 to 7, the outer conductor 80 includes a tubular portion 82, and an end elastic piece 90 and an additional elastic piece 96 extending from the edge of the opening on the tip side of the tubular portion 82.

[0081] The cylindrical portion 82 is a portion that is fitted onto the insulator 70. The cylindrical portion 82 is held at a fixed position relative to the insulator 70, and serves to support the outer conductor 80 at a fixed position relative to the insulator 70. In addition, for example, if the base end opening of the cylindrical portion 82 is soldered to a circuit of the circuit board 21, such as a ground circuit, it can serve to ground the movable-side outer conductor 46 to the ground circuit.

[0082] The tube portion 82 includes a first end 84 , a tube forming portion 86 , and a second end 88 .

[0083] The cylinder forming portion 86 has a cylindrical shape, in this case a partial cylindrical shape. The first end portion 84 is continuous with one circumferential end side of the cylinder forming portion 86. The cylinder forming portion 86 and the first end portion 84 form a cylindrical shape together. More specifically, the first end portion 84 and the cylinder forming portion 86 form one circumference of a cylinder.

[0084] The second end 88 is connected to the opposite side of the first end 84 with respect to the tube forming portion 86. The second end 88 is overlapped with the first end 84. In other words, the first end 84, the tube forming portion 86, and the second end 88 are formed into a shape that exceeds one circumference of a tube, and both ends of the tube portion 82 are overlapped by the amount that exceeds one circumference. One of the overlapping portions is the first end 84, and the other is the second end 88.

[0085] The second end 88 may overlap the first end 84 on the inner periphery side or the outer periphery side. It is preferable that the second end 88 overlaps the first end 84 on the side opposite to the orientation of the contact portion 93a. In this embodiment, the contact portion 93a faces the outer periphery side, as described later. Therefore, the second end 88 overlaps the first end 84 on the inner periphery side.

[0086] Conversely, when the elastic piece contacts the mating conductor from the outer periphery, that is, when the contact portion faces the inner periphery, it is preferable that the second end overlaps the first end on the outer periphery.

[0087] In this embodiment, the first end 84 and the tube forming portion 86 are connected to each other to form a tube shape of the same diameter. That is, the first end 84 and the tube forming portion 86 are formed to have a shape having the same radius of curvature about the central axis X. The second end 88 is overlapped on the inside of the first end 84 and protrudes further inward than the tube forming portion 86. More specifically, a step 87 is formed between the tube forming portion 86 and the second end 88. The step of the step 87 is set to, for example, about the thickness of the tube portion 82. The second end 88 protrudes further inward than the tube forming portion 86 via the step 87. The second end 88 protrudes further inward than the tube forming portion 86 by the thickness of the tube portion 82 with respect to the first end 84 and the tube forming portion 86.

[0088] With the tubular portion 72 of the insulator 70 housed within the tubular portion 82, the second end 88 fits into the positioning recess 72g of the tubular portion 72. In this state, rotation of the outer conductor 80 relative to the insulator 70 is prevented within a range in which the second end 88 contacts one of a pair of side surfaces 72g1 of the recess 72g. The width of the recess 72g in the outer circumferential direction of the insulator 70 may be the same as or different from the width of the second end 88 in the same direction. The second end 88 contacts the surface 72g2 of the recess 72g, thereby preventing the tubular portion 72 of the insulator 70 from being over-inserted into the tubular portion 82 of the outer conductor 80.

[0089] The cylindrical portion 82 further includes a fixing portion 83. The fixing portion 83 is a portion that keeps the first end portion 84 and the second end portion 88 in an overlapping state. In this embodiment, the fixing portion 83 is a crimp fixing portion 83. The crimp fixing portion 83 keeps the first end portion 84 and the second end portion 88 in an overlapping state by plastic deformation of at least one of the first end portion 84 and the second end portion 88.

[0090] In this embodiment, a convex portion 83a is formed by plastic deformation on one of the first end portion 84 and the second end portion 88, and a concave portion 83b is formed by plastic deformation on the other of the first end portion 84 and the second end portion 88. The convex portion 83a fits into the concave portion 83b, thereby maintaining the first end portion 84 and the second end portion 88 in an overlapping state.

[0091] More specifically, for example, the overlapped first end 84 and second end 88 are sandwiched and pressed between a press die having a convex portion and a press die having a concave portion. Then, parts of the first end 84 and the second end 88 are extrusion-pressed from the convex portion of the press die toward the concave portion of the press die. The first end 84 and the second end 88 are simultaneously press-molded with fitted convex portions 83a and concave portions 83b (see FIG. 7). For example, the convex portion of the press die is pressed against the outer peripheral surface of the first end 84, and the concave portion of the press die is disposed on the inner peripheral surface of the second end 88. By the press process, the first end 84 is formed with a convex portion 83a protruding toward the inner peripheral side. Also, the concave portion 83b is formed on the outer peripheral surface of the second end 88. The convex portion 83a of the first end 84 is fitted into the concave portion 83b of the second end 88, and the first end 84 and the second end 88 are kept in an overlapping state.

[0092] Such a joining structure may be, for example, a structure called spot swaging or a structure called draw lock.

[0093] The end elastic piece 90 extends from one opening edge of the tubular portion 82 and is connected to the movable-side outer conductor 46 as the mating terminal. At least a part of the end elastic piece 90 extends from a first end 84 of the opening edge of the tubular portion 82 on one side.

[0094] That is, the first end portion 84 and the tube forming portion 86 form one full cylindrical shape, and at least a portion of the end elastic piece 90 extends from the opening edge of the first end portion 84 to one side in the direction of the central axis X.

[0095] It is sufficient that at least a portion of the base end of the end elastic piece 90 is connected to the first end 84. In this embodiment, the first end 84 and the second end 88 are overlapped with each other in an area equal to or less than half the width of the end elastic piece 90. Thus, half or less than half of the base end of the end elastic piece 90 in the width direction is connected to the first end 84. The end elastic piece 90 may be connected to the first end 84 over a larger width.

[0096] The end elastic piece 90 has a base end 91, an inclined portion 92, a bulging portion 93, and a tip guide portion 94. The base end 91, the inclined portion 92, the bulging portion 93, and the tip guide portion 94 are connected in this order from the tubular portion 82 toward one side of the central axis X of the tubular portion 82.

[0097] The base end 91 is a plate-like portion directly connected to the first end 84 and separated from the adjacent additional elastic piece 96. The inclined portion 92 is a plate-like portion directly connected to the base end 91 and extending further from the base end 91.

[0098] The base end 91 extends along the central axis X of the tubular portion 82 from the base end of the end elastic piece 90 connected to the first end 84. The inclined portion 92 extends from the tip of the base end 91 so as to be inclined (here, inclined toward the outer periphery) toward the central axis X. Thus, the end elastic piece 90 has a bending point 91V between the base end 91 and the inclined portion 92. The end elastic piece 90 can elastically deform inward and outward directions of the tubular portion 82 mainly in the portion from the bending point 91V to the tip side.

[0099] The bulging portion 93 faces one side of the central axis X while forming a curved surface that is convex outward from the tip of the inclined portion 92. The portion of the bulging portion 93 that protrudes most outward in the radial direction of the cylindrical portion 82 is a contact portion 93a that faces outward and comes into contact with the movable-side outer conductor 46.

[0100] The tip guide portion 76 is inclined from the tip of the bulging portion 93 toward one side of the central axis X toward the inner periphery.

[0101] When the outer conductor 80 is inserted into the movable-side outer conductor 46, the tip guide portion 76 comes into contact with the opening edge of the movable-side outer conductor 46, thereby guiding the end elastic piece 90 to the inner periphery of the movable-side outer conductor 46. When the outer conductor 80 is inserted into the movable-side outer conductor 46, mainly the inclined portion 92 elastically deforms toward the inner periphery. The elastic force of the inclined portion 92 returning to its original shape causes the contact portion 93a to be elastically pressed against the inner periphery of the movable-side outer conductor 46. In this state, a force toward the inner periphery acts on the base end portion 91 of the end elastic piece 90. For this reason, it is desirable to firmly support the first end portion 84 so that it is not displaced toward the inner periphery.

[0102] A slit 84S is formed in the first end portion 84 between the crimped fixing portion 83 and the end elastic piece 90.

[0103] The slit 84S extends in a direction dividing the portion from the crimping fixing portion 83 toward the end elastic piece 90. In this embodiment, the slit 84S extends in the circumferential direction of the tubular portion 82. The slit 84S may be inclined with respect to the circumferential direction of the tubular portion 82 or may be inclined with respect to the central axis X.

[0104] It is desirable, but not essential, that the length of the slit 84S exceeds the length of the crimped fixing portion 83 in the circumferential direction of the tubular portion 82. In this embodiment, the length of the slit 84S extends from the circumferential edge of the first end portion toward the tube forming portion 86 along the circumferential direction of the tubular portion 82. The slit 84S extends in the circumferential direction of the tubular portion 82 beyond the crimped fixing portion 83, and further beyond the circumferential edge of the second end portion 88 to reach the tube forming portion 86.

[0105] The slit 84S may be a slit in which a pair of opposing inner surfaces are separated, or a slit like a cut in which a pair of opposing inner surfaces are in contact with each other.

[0106] In this embodiment, the second end 88 overlaps the first end 84 on both sides of the slit 84S in the direction of the central axis X. Therefore, the second end 88 can support the first end 84 from the inside on the end elastic piece 90 side of the slit 84S.

[0107] It is sufficient that the second end 88 overlaps with the first end 84 at least at the crimped fixing portion 83 and its periphery. Therefore, the second end 88 may overlap with the first end 84 in a region that is farther from the end elastic piece 90 than the slit 84S.

[0108] A preferred example of the positional relationship between the crimping fixing portion 83 and the slit 84S with respect to the end elastic piece 90 will be described.

[0109] The crimping fixing portion 83 is preferably located away from the end elastic piece 90. When the first end 84 and the second end 88 are deformed for crimping, the deformation may affect the periphery of the crimping fixing portion 83. If the end elastic piece 90 and the part supporting the end elastic piece 90 are deformed in an unintended manner, this may affect the elastic deformation of the end elastic piece 90 when the outer conductor 80 is inserted into the movable-side outer conductor 46. If the crimping fixing portion 83 is located away from the end elastic piece 90, the deformation of the crimping fixing portion 83 is unlikely to affect the end elastic piece 90 and the part supporting the end elastic piece 90. This allows the end elastic piece 90 to be pressed against the movable-side outer conductor 46 with a design-preferred elastic force.

[0110] It is preferable that the distance L1 between the slit 84S and the end elastic piece 90 is equal to or greater than the distance L2 between the slit 84S and the edge 82e of the tubular portion 82 on the opposite side to the end elastic piece 90 (see FIG. 7). The crimped fixing portion 83 is located on the opposite side of the slit 84S to the end elastic piece 90. Therefore, the crimped fixing portion 83 is positioned far away from the end elastic piece 90.

[0111] Additionally, it is preferable that the edge 88a of the second end 88 from which the end elastic piece 90 extends is located between the base end of the end elastic piece 90 and a bent point 91V which is the boundary between the base end 91 and the inclined portion 92. The base end of the end elastic piece 90 is the boundary between the end elastic piece 90 and the second end 88, and is located at the back of the slit between the end elastic piece 90 and the additional elastic piece 96 in the direction of the central axis X.

[0112] If the edge 88a of the second end 88 on the side from which the end elastic piece 90 extends is too far from the end elastic piece 90, it will not be able to effectively support the end elastic piece 90 from the inner periphery side. If the edge 88a coincides with the base end of the end elastic piece 90 or goes beyond the base end, the second end 88 will be able to effectively support the end elastic piece 90 from the inner periphery side.

[0113] If the edge 88a of the second end 88 on the side from which the end elastic piece 90 extends extends too far, a wasted area will be generated. If the edge 88a is located at the bending point 91V or before the bending point 91V, the second end 88 can be positioned in a region that is effective for supporting the end elastic piece 90.

[0114] A preferred example of setting the positional relationship between the bottom surface 72gb of the recess 72g of the insulator 70 and the second end portion 88 will be described.

[0115] It is preferable that a bottom surface 72gb of the recess 72g is formed at a position that receives the displacement of the second end portion 88 toward the inner periphery side.

[0116] In this embodiment, the bottom surface 72gb is formed on a surface parallel to the central axis X. With the second end 88 disposed within the recess 72g, the second end 88 is positioned toward one of the pair of side surfaces 72g1 of the recess 72g. In this state, the base end of the second end 88 contacts the bottom surface 72gb. This allows the bottom surface 72gb to receive the displacement of the second end 88 toward the inner periphery.

[0117] The bottom surface 72gb may come into contact with an inwardly protruding portion of the crimped fixing portion 83, thereby receiving the displacement of the second end portion 88 toward the inner periphery side.

[0118] It is not essential that the bottom surface 72gb is in contact with the second end 88. For example, a configuration may be adopted in which a gap of 1 mm or less is formed between the second end 88 and the bottom surface 72gb, and the second end 88 displaced toward the inner periphery comes into contact with the bottom surface 72gb, thereby causing the bottom surface 72gb to receive the displacement of the second end 88 toward the inner periphery.

[0119] The bottom surface 72gb of the recess 72g may be formed at a position closer to the end elastic piece 90 than the slit 84S and at a position that receives the displacement of the second end 88 toward the inner periphery side.

[0120] In this embodiment, the base end of the second end 88 has a protruding ridge portion 88r that protrudes inwardly from the tube forming portion 86 along the central axis X (see Figs. 5 and 6). The protruding ridge portion 88r that protrudes along the central axis X can contact the bottom surface 72gb on both sides of the slit 84S along the central axis X. The protruding ridge portion 88r can contact the bottom surface 72gb even at a position close to the end elastic piece 90 with respect to the slit 84S. This allows the bottom surface 72gb to effectively receive the displacement of the second end 88 inwardly from the portion close to the end elastic piece 90.

[0121] The insulator 70 may have a receiving surface 70f for receiving the displacement of the outer conductor 80 toward the inner periphery at a position closer to the end elastic piece 90 than the recess 72g.

[0122] In this embodiment, the insulator 70 has a receiving surface 70f on the tip side of the surface 72g2 of the recess 72g. The receiving surface 70f protrudes from the bottom surface 72gb by the thickness of the second end 88. Therefore, the receiving surface 70f can be located in a portion of the outer conductor 80 that protrudes from the second end 88, in this case, on the inner surface side of the base end 91 of the end elastic piece 90. In this state, the base end 91 contacts the receiving surface 70f. This allows the receiving surface 70f to receive the displacement of the base end 91 toward the inner periphery.

[0123] It is not essential that the receiving surface 70f and the base end 91 are in contact with each other. For example, a gap of 1 mm or less may be formed between the receiving surface 70f and the base end 91, and the base end 91 displaced toward the inner periphery may come into contact with the receiving surface 70f, so that the receiving surface 70f receives the displacement of the base end 91 toward the inner periphery.

[0124] The receiving surface 70f may receive the displacement of the portion of the first end 84 close to the end elastic piece 90 toward the inner periphery side.

[0125] As described above, the outer conductor 80 further includes at least one additional elastic piece 96 extending from the opening edge of the tubular portion 82. In this embodiment, the outer conductor 80 includes a plurality of additional elastic pieces 96, specifically, seven additional elastic pieces 96. That is, the outer conductor 80 includes a plurality of elastic pieces 90, 96, more specifically, eight elastic pieces 90, 96.

[0126] The additional elastic piece 96 is formed in the same shape as the end elastic piece 90 except for the portion supported by the tubular portion 82 .

[0127] The multiple elastic pieces 90, 96 are supported so as to be aligned at equal intervals in the circumferential direction of the tubular portion 82. Note that "equal intervals" includes uniformity within an error range (for example, the same within a range of ±5 degrees around the central axis X). When viewed along the central axis X of the tubular portion 82, the multiple elastic pieces 90, 96 are aligned radially with the central axis X of the tubular portion 82 as the center.

[0128] When the outer conductor 80 is inserted into the movable outer conductor 46, the elastic pieces 90, 96 contact the inner periphery of the movable outer conductor 46 at equal intervals along the circumferential direction. Since the elastic pieces 90, 96 have the same shape and are arranged at equal intervals along the circumferential direction of the tubular portion 82, the elastic pieces 90, 96 are pressed against the movable outer conductor 46 under the same conditions. In addition, if the elastic pieces are supported by a tubular member with a slit, the tubular member may elastically deform inward and outward near the slit, so that the force supporting the elastic pieces may be weakened and the elastic force pressing the elastic pieces against the mating conductor may be weakened. In this embodiment, since the first end portion 84 is supported by the second end portion 88, it is easy to support the base end of the end elastic piece 90 at a fixed position, and therefore it is easy to keep the end elastic piece 90 pressed against the movable outer conductor 46 with a desired design contact load.

[0129] <Effects, etc.> According to the coaxial connector 60 configured as above, the first end 84 and the second end 88 are overlapped and fixed by the crimping fixing portion 83, so that the tubular portion 82 is easily maintained in a constant shape. In addition, since at least a part of the end elastic piece 90 extends from the first end 84, the end elastic piece 90 is also easily supported at a constant position. In addition, a slit 84S is formed between the crimping fixing portion 83 and the end elastic piece 90 in the first end 84. Therefore, even if the first end 84 and the second end 88 are firmly fixed by the crimping fixing portion 83, the effect of the processing for fixing is unlikely to extend to the end elastic piece 90. Therefore, the elastic pieces 90, 96 including the end elastic piece 90 are easily held firmly in a constant position suitable for connection with the mating movable-side outer conductor 46, and the desired contact load is easily obtained.

[0130] In addition, since the slit 84S extends along the circumferential direction of the tubular portion 82, it has a shorter length than when the slit is diagonal to the circumferential direction, and the effect of the processing for fixing the first end portion 84 and the second end portion 88 is less likely to extend to the end elastic piece 90.

[0131] Furthermore, by fixing the first end 84 and the second end 88 with the crimping fixing portion 83, the outer conductor 80 can be manufactured at low cost compared to forming the outer conductor by cutting or welding a plate material.

[0132] Moreover, the second end 88 overlaps the first end 84 on both sides of the slit 84S in the direction of the central axis X. Therefore, the first end 84 can be held in a fixed position by overlapping the second end 88 on the side closer to the end elastic piece 90 than the slit 84S. This makes it easier to hold the elastic piece including the end elastic piece 90 firmly in a fixed position suitable for connection with the mating movable-side outer conductor 46, and makes it easier to obtain the desired contact load.

[0133] In addition, since the distance L1 between the slit 84S and the end elastic piece 90 is equal to or greater than the distance L2 between the slit 84S and the edge 82e of the tubular portion 82 opposite the end elastic piece 90, the processing of the crimped fixing portion 83 is unlikely to affect the end elastic piece 90. In addition, since the portion of the first end 84 to which the end elastic piece 90 is continuous can be made wider, the end elastic piece 90 can be easily held firmly.

[0134] Moreover, the end elastic piece 90 has a contact portion 93a, and the second end portion 88 is overlapped with the first end portion 84 on the side opposite to the orientation of the contact portion 93a. Therefore, when the contact portion comes into contact with the mating movable-side outer conductor 46, a force acts on the end elastic piece 90 in the opposite direction to the orientation of the contact portion 93a, in this case, a force toward the inner circumference. This force can be received by the second end portion 88. Therefore, when the end elastic piece 90 is brought into contact with the mating movable-side outer conductor 46, the base end portion 91 of the end elastic piece 90 is less likely to be displaced, making it easier to obtain the desired contact load.

[0135] The second end 88 is overlapped with the inside of the first end 84 and protrudes further inward than the tube-forming portion 86. Therefore, when the outer conductor 80 is inserted and connected to the mating movable-side outer conductor 46, the end elastic piece 90 can be effectively received from the inner periphery. Since the first end 84 and the tube-forming portion 86 are connected to form a tube shape of the same diameter, when another additional elastic piece 96 is extended from the tube-forming portion 86, it is easy to maintain the same elastic properties of the end elastic piece 90 and the additional elastic piece 96. By protruding the second end 88 further inward than the tube-forming portion 86, it is easy to position the second end 88 with respect to the insulator 70 in the tube portion 82.

[0136] Additionally, an edge 88a of the second end 88 from which the end elastic piece 90 extends is located between the base end of the end elastic piece 90 and the boundary between the base end 91 and the inclined portion 92. Therefore, the second end 88 can effectively receive the base end of the end elastic piece 90.

[0137] Furthermore, since the end elastic piece 90 and the at least one additional elastic piece 96 are arranged at intervals in the circumferential direction of the tubular portion 82, the outer conductor 80 can be satisfactorily electrically connected to the mating movable-side outer conductor 46.

[0138] The coaxial connector 60 further includes an inner conductor 62 and an insulator 70, and the outer conductor 80 housing the insulator 70 can be electrically connected to the movable outer conductor 46 in a satisfactory manner.

[0139] Furthermore, by fitting the second end 88 into the recess 72g of the insulator 70, the outer conductor 80 can be positioned relative to the insulator 70 by utilizing the second end.

[0140] In addition, the bottom surface 72gb of the recess 72g absorbs the displacement of the second end 88 toward the inner circumference, making it difficult for the second end 88 and the first end 84 to displace toward the inner circumference, and as a result, the end elastic piece 90 is also difficult to displace toward the inner circumference.

[0141] Furthermore, since the bottom surface 72gb of the recess 72g receives the inward displacement of the second end 88 at a position closer to the end elastic piece 90 than the slit 84S, the end elastic piece 90 is less likely to be displaced inward.

[0142] Furthermore, the receiving surface 70f of the insulator 70 receives the displacement of the outer conductor 80, in this case, the base end 91 of the end elastic piece 90, toward the inner periphery at a position closer to the end elastic piece 90 than the recess 72g. Therefore, while the second end 88 is positioned by the recess 72g, the receiving surface 70f can suppress the displacement of the outer conductor 80 toward the inner periphery.

[0143] [Variations] In the above embodiment, an example in which the fixing portion is a crimp fixing portion has been described. The fixing portion may be a welded portion by laser welding, resistance welding, or the like, or may be a soldered fixing portion. Even in these cases, the thermal energy for fixing is prevented from affecting the end elastic piece 90 or its supporting portion. This prevents distortion or changes in the elastic properties of the end elastic piece and its supporting portion from being caused, making it easier to obtain the desired contact load.

[0144] In the above embodiment, the configuration related to the tubular portion 82 of the outer conductor 80 may be applied to the tubular portion of another connector conductor. For example, a configuration in which the first end and the second end of the tubular portion 82 are overlapped and fixed to the base end tubular portion 64 of the inner conductor 62 in the above embodiment, and a slit is formed may be applied.

[0145] The configurations described in the above embodiment and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0146] 10 Equipment 12 cases 13 Case 1 14 Case 2 15 Bottom 16 Holding cylinder part 17 Retaining partition 17h holding hole 18a Locking protrusion 20 Electrical Components 21 Circuit Board 22 Image sensor 30 Coaxial connector for external connection 32 Inner conductor for external connection 34 External connection insulator 36 Outer conductor for external connection 40 Relay connector 42 Movable inner conductor 44 Movable side insulator 46 Movable outer conductor (opposing conductor) 60 Coaxial connector (connector) 62 Inner conductor 64 Proximal cylinder part 64P Positioning protrusion 64a extension piece 64b Locking protrusion 66 Elastic Piece 70 Insulators 70f Receiving surface 72 Cylinder part 72a Projection 72g dent 72g1 side 72g2 sides 72gb bottom 76 Tip guide part 77 Insertion hole 78 Outer guide surface 80 Outer conductor (connector conductor) 82 Cylinder part 82e Edge 83 Crimping fixing part (fixing part) 83a Convex 83b Recess 84 First end 84S Slit 86 Cylinder forming part 87 Multilayered section 88 Second end 88a Edge 88r protruding ridge part 90 End elastic piece (elastic piece) 91 Proximal end 91V Bending point 92 Slope 93 Bulge 93a Contact part 94 Tip guide part 96 Additional elastic piece (elastic piece) L1 Distance between the slit and the end elastic piece L2: Distance between the edge of the cylindrical part opposite the end elastic piece and the slit X center axis

Claims

1. A connector having a connector conductor, the connector conductor includes a tubular portion and an elastic piece extending from an opening edge of the tubular portion, The cylindrical portion is A cylinder forming portion having a cylindrical shape; a first end portion in a circumferential direction of the cylinder forming portion; a second end portion of the cylinder portion in a circumferential direction, the second end portion being overlapped with the first end portion; a fixing portion for holding the first end portion and the second end portion in an overlapping state; having The elastic piece includes an end elastic piece, At least a portion of the end elastic piece extends from the opening edge of the first end toward one side in the central axis direction of the tubular portion, A connector, wherein a slit is formed in the first end portion between the fixed portion and the end elastic piece.

2. 2. The connector of claim 1, The slit extends along a circumferential direction of the cylindrical portion.

3. The connector according to claim 1 or 2, The connector, wherein the fixing portion is a crimping fixing portion.

4. The connector according to claim 1 or 2, A connector, wherein the second end overlaps the first end on both sides of the slit in the central axial direction of the cylindrical portion.

5. The connector according to claim 1 or 2, A connector, wherein the distance between the slit and the end elastic piece is equal to or greater than the distance between the slit and an edge of the tubular portion opposite the end elastic piece.

6. The connector according to claim 1 or 2, The end elastic piece has a contact portion that contacts a mating conductor, the contact portion faces one of the inner and outer radial directions of the cylindrical portion, The second end portion is overlapped with the first end portion on a side opposite to a direction of the contact portion in a radial direction of the cylindrical portion.

7. 7. The connector of claim 6, The contact portion faces outward in a radial direction of the cylindrical portion, The first end portion and the cylinder forming portion are connected to each other to form a cylinder shape having the same diameter, The second end portion is overlapped on the inside of the first end portion and protrudes radially inward beyond the tube-forming portion.

8. The connector according to claim 1 or 2, the end elastic piece includes a base end portion extending from a base end of the end elastic piece along the central axis direction of the tubular portion, and an inclined portion extending from a tip end of the base end portion so as to be inclined with respect to the central axis direction, A connector, wherein the edge of the second end portion from which the end elastic piece extends is located between the base end of the end elastic piece and the boundary between the base end portion and the inclined portion.

9. The connector according to claim 1 or 2, The elastic piece further includes at least one additional elastic piece extending from the opening edge of the tubular portion, A connector, wherein the end elastic piece and the at least one additional elastic piece are arranged at intervals in the circumferential direction of the tubular portion.

10. The connector according to claim 1 or 2, An inner conductor; an insulator in which the inner conductor is housed; Further equipped with The insulator is housed within the cylindrical portion.

11. 11. The connector of claim 10, A recess is formed on the outer peripheral surface of the insulator, the second end is located closer to an inner periphery of the cylindrical portion than the first end is, The second end of the connector fits into the recess.

12. 12. The connector of claim 11, A connector, wherein a bottom surface of the recess is formed at a position that receives displacement of the second end toward the inner periphery.

13. 13. The connector of claim 12, A connector, wherein the bottom surface of the recess is formed at a position closer to the end elastic piece than the slit and at a position that receives displacement of the second end toward the inner periphery.

14. 12. The connector of claim 11, The insulator has a receiving surface at a position closer to the end elastic piece than the recess, which receives displacement of the connector conductor toward the inner periphery.

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