JP2025008370A - connector - Google Patents

Abstract

To obtain a desired contact weight.SOLUTION: A connector 60 has a connector conductor 80. The connector conductor 80 contains: a cylinder part 82; and elastic pieces 90 and 96 that are extended from an open edge of the cylinder part. The cylinder part includes: a cylinder formation part 86 that forms a cylinder shape; a first end part 84 of a peripheral direction in the cylinder formation part; and a second end part 88 of a peripheral direction in the cylinder formation part. 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 X direction of the cylinder part from the open edge of the first end part. The first end part includes: a first inner peripheral side end part 84a; and a first outer peripheral side end part 84b. The second end part includes: a second inner peripheral side end part 88a; and a second outer peripheral side end part 88b. The first inner peripheral side end part is overlapped to an inner peripheral side of the second outer peripheral side end part, and the first and second end parts are fixed in a state where the first outer peripheral side end part is overlapped to the outer peripheral side of the second inner peripheral side end part.SELECTED DRAWING: Figure 3

Description

This disclosure relates to connectors.

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 roughly cylindrical shape that mates with the mating male connector.

JP 2003-297491 A

The metal shell described in Patent Document 1 can function as a connector conductor that includes a cylindrical fitting portion. It is desirable to be able to obtain a desired contact load when connecting such a connector conductor to a mating connector.

The purpose of this disclosure is to make it possible to obtain a desired contact load when connecting a connector conductor to a mating connector.

The connector of the present disclosure is a connector having a connector conductor, the connector conductor including a tube portion and an elastic piece extending from an opening edge of the tube portion, the tube portion having a tube-shaped tube forming portion, a first circumferential end of the tube forming portion, and a second circumferential end of the tube forming portion, 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 toward one side in the central axis direction of the tube portion, the first end having a first inner peripheral end and a first outer peripheral end, the second end having a second inner peripheral end and a second outer peripheral end, the first end and the second end being fixed in a state in which the first inner peripheral end is overlapped on the inner peripheral side of the second outer peripheral end and the first outer peripheral end is overlapped on the outer peripheral side of the second inner peripheral end.

According to this disclosure, it is easy to obtain the desired contact load when connecting a connector conductor to a mating connector.

FIG. 1 is a perspective view showing a device including a coaxial connector according to an embodiment. FIG. 2 is a cross-sectional view taken along line II-II of FIG. FIG. 3 is a perspective view showing a coaxial connector. FIG. 4 is an exploded perspective view showing a coaxial connector. FIG. 5 is a bottom view showing the coaxial connector. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. FIG. 8 is a perspective view showing the outer conductor. FIG. 9 is a bottom view showing a coaxial connector according to a modified example.

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

The connectors disclosed herein are as follows:

(1) A connector having a connector conductor, the connector conductor includes a tube portion and an elastic piece extending from an opening edge of the tube portion, the tube portion has a tube-shaped tube-forming portion, a first circumferential end of the tube-forming portion, and a second circumferential end of the tube-forming portion, the elastic piece includes an end elastic piece, at least a part of the end elastic piece extends from the opening edge of the first end toward one side in the central axis direction of the tube portion, the first end has a first inner peripheral end and a first outer peripheral end, the second end has a second inner peripheral end and a second outer peripheral end, the first end and the second end are fixed in a state where the first inner peripheral end is overlapped on the inner peripheral side of the second outer peripheral end and the first outer peripheral end is overlapped on the outer peripheral side of the second inner peripheral end.

With this connector, the first inner peripheral end is overlapped on the inner peripheral side of the second outer peripheral end, and the first outer peripheral end is overlapped on the outer peripheral side of the second inner peripheral end, so that the first end is positioned in both the inner peripheral and outer peripheral directions relative to the second end. This makes it easier for the tubular portion to maintain a constant shape. Therefore, the elastic pieces, including the end elastic pieces, are easily held firmly in a constant position suitable for connection with the mating connector, and the desired contact load is easily obtained when connecting the connector conductor to the mating connector.

(2) In the connector of (1), the tubular portion may further have a first fixing portion that keeps the first inner end and the second outer end in an overlapping state, and a second fixing portion that keeps the first outer end and the second inner end in an overlapping state.

In this case, the first inner peripheral end and the second outer peripheral end are kept in an overlapping state by the first fixing portion, and the first outer peripheral end and the second inner peripheral end are kept in an overlapping state by the second fixing portion. This makes it easier to more reliably maintain the cylindrical portion in a constant shape. Therefore, it is easier to obtain the desired contact load when connecting the connector conductor to the mating connector.

(3) In the connector of (2), the first fixing portion may be a first crimp fixing portion that crimps and fixes the first inner end and the second outer end, and the second fixing portion may be a second crimp fixing portion that crimps and fixes the first outer end and the second inner end.

If the first and second fixing parts are each a crimp fixing part, the connector conductor can be manufactured at a lower cost than when the connector conductor is formed by cutting or welding a plate material.

(4) In the connector of (1) to (3), a slit may be formed between the first inner end and the first outer end, and between the second inner end and the second outer end.

If a slit is formed between the first inner peripheral end and the first outer peripheral end, it is easy to set the first inner peripheral end and the first outer peripheral end at a position where they overlap in the circumferential direction of the tube, while shifting them to different positions in the radial direction of the tube. If a slit is formed between the second inner peripheral end and the second outer peripheral end, it is easy to set the second inner peripheral end and the second outer peripheral end at a position where they overlap in the circumferential direction of the tube, while shifting them to different positions in the radial direction of the tube. This makes it easy to set the overlapping portion of the first inner peripheral end and the second outer peripheral end and the overlapping portion of the first outer peripheral end and the second inner peripheral end at positions close to each other in the circumferential direction of the tube, and the first end is more reliably positioned in both the inner and outer directions relative to the second end.

(5) In any one of the connectors (1) to (4), when a region of the first end including the first inner peripheral end and the first outer peripheral end is defined as an overlapping end, the first end may have a base end located closer to the opening edge than the overlapping end, and a base separation slit may be formed between the overlapping end and the base end.

In this case, because a base separation slit is formed between the overlapping end and the base end, the effects of processing the overlapping end are less likely to extend to the base end. Therefore, the elastic piece, including the end elastic piece, is more likely to be firmly held in a fixed position suitable for connection with the mating connector, making it easier to obtain the desired contact load.

(6) Any one of the connectors (1) to (5), wherein the elastic piece further includes at least one additional elastic piece different from the end elastic piece, 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.

This allows the connector conductor to be electrically connected to the mating conductor well.

(7) Any one of the connectors (1) to (6) may further include an inner conductor and an insulator in which the inner conductor is housed, and the insulator may be housed within the cylindrical portion.

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 that houses the insulator, the connector conductor can be electrically connected satisfactorily to the mating conductor.

(8) In the connector of (7), the first outer circumferential end, the tube forming portion, and the second outer circumferential end are connected to form a tube shape of the same diameter, the first inner circumferential end and the second inner circumferential end each protrude inward from the tube forming portion, a recess is formed on the outer circumferential surface of the insulator, and the first inner circumferential end and the second inner circumferential end may fit into the recess.

This allows the first inner circumference end and the second inner circumference end to be used to position the connector conductor relative to the insulator.

(9) In the connector of (7) or (8), the recess may have a position control surface that receives the displacement of the end of the first inner circumference side end and the second inner circumference side end, whichever is closer to the end elastic piece, toward the end elastic piece.

In this case, when the end closest to the end elastic piece among the first and second inner circumferential ends tries to displace toward the end elastic piece, the end comes into contact with the position control surface and the displacement is restricted. This allows the connector conductor to be more reliably positioned relative to the insulator.

(10) In any one of the connectors (7) to (9), the bottom surface of the recess may be formed in a position that receives the displacement of the first inner circumference end portion or the second inner circumference end portion toward the inner circumference.

As a result, the inward displacement of the first inner peripheral end and the second inner peripheral end is received by the bottom surface of the recess, making it easier for the tube portion to maintain a constant cylindrical shape.

(11) Any one of the connectors (7) to (10) may have a first step portion located between the tube forming portion and the first inner circumferential end portion, a second step portion located between the tube forming portion and the second inner circumferential end portion, and the recess may have a first side surface facing the first step portion in the circumferential direction of the tube portion, and a second side surface facing the second step portion in the circumferential direction of the tube portion.

In this case, when the tube tries to open, the first step contacts the first side and the second step contacts the second side. This prevents the tube from expanding.

(12) In any one of the connectors (7) to (11), the insulator may have a receiving surface that receives the displacement of the connector conductor toward the inner circumference at a position closer to the end elastic piece than the recess.

This allows the recess to position the first inner end and the second inner end, while the receiving surface prevents the connector conductor from being displaced toward the inner circumference.

[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.

[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.

<Overall configuration of the device>
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 the device 10 equipped with a coaxial connector 60. Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1.

The device 10 is, for example, a camera device. The camera device is, for example, a device for mounting on a vehicle. The device 10 does not have to be a camera device.

The device 10 includes a case 12 and an electrical component 20. The electrical component 20 is housed in the case 12. A coaxial connector 60 is fixed to the electrical component 20.

The case 12 comprises a first case 13 and a second case 14. The first case 13 and the second case 14 are formed, for example, from resin. The first case 13 and the second case 14 are combined to form the rectangular box-shaped case 12 that houses the electrical 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.

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

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

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

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.

The external connection inner conductor 32 is formed in a long, 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 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 cylindrical shape that surrounds the external connection insulator 34.

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

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. The movable inner conductor 42 described below is connected to the inner conductor 62. The insulator 70 surrounds the inner conductor 62. The outer conductor 80 surrounds the insulator 70. In other words, the inner conductor 62, the insulator 70, and the outer conductor 80 are arranged in this order in a concentric manner from the center toward the outer periphery.

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 material. 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, and is also an example of a mating connector.

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

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

When the relay connector 40 and the coaxial connector 60 are connected, the movable inner conductor 42 is inserted and connected at an angle relative to the inner conductor 62. The outer conductor 80 is inserted and connected at an angle relative to the movable outer conductor 46. In other words, the relay connector 40 can be connected at an angle relative to the coaxial connector 60 (see arrow P1 in FIG. 2). As a result, even if the coaxial connector 60 and the external coaxial connector 30 are misaligned from their coaxially opposing positions during the assembly process of the device 10 or in the completed state (see arrow P2 in FIG. 2), the misalignment is absorbed by the relay connector 40 being tilted relative to the coaxial connector 60.

<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. Fig. 6 is a cross-sectional view taken along line VI-VI in Fig. 3. Fig. 7 is a cross-sectional view taken along line VII-VII in Fig. 5.

As described above, the coaxial connector 60 includes, for example, an inner conductor 62, an insulator 70, and an outer conductor 80.

The inner conductor 62 is an elongated conductive member (see Figures 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.

The base end tube portion 64 is formed in a tube shape, more specifically, in a cylindrical shape. The base end tube portion 64 is housed 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 the tip, in this case the end facing the circuit board 21.

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.

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 fit into a recess in the insulator 70 to position the inner conductor 62 relative to the insulator 70.

A locking protrusion 64b is provided on the base end tubular portion 64. The locking protrusion 64b protrudes partially from the outer periphery of the base end tubular portion 64. The locking protrusion 64b is formed in a shape that gradually increases in protruding dimension 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 hooks onto the inner periphery of the insulator 70, and the inner conductor 62 is held in a state that prevents it from coming out of the insulator 70.

The multiple elastic pieces 66 protrude further toward the tip side from the tip 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, two elastic pieces 66 face each other around the central axis X of the base end tubular portion 64.

The movable 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 inner conductor 42 is sandwiched between the two elastic pieces 66, and is thereby connected to the inner conductor 62.

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.

The insulator 70 comprises a cylindrical portion 72 and a tip guide portion 76.

The tubular portion 72 is formed in a tubular shape capable of housing the inner conductor 62. In this embodiment, the tubular portion 72 is formed in a cylindrical shape, and a cylindrical space is formed inside the tubular portion 72. The inner conductor is housed in the cylindrical space.

The outer peripheral surface of the tube portion 72 is formed in a circumferential surface shape centered on the central axis X. The outer conductor 80 is disposed on the outer peripheral side of the tube portion 72. A positioning recess 72g is formed in a part of the circumferential direction of the outer peripheral portion of the tube portion 72. The recess 72g has a pair of first side surfaces 72g1a and second side surfaces 72g1b that face each other in the circumferential direction of the tube portion 72, and a position restriction surface 72g2 that faces the base end side of the tube portion 72 (see FIG. 4). The second end portion 88, which will be described later, fits into the recess 72g. In this state, the second end portion 88 is positionally restricted by the pair of side surfaces 72g1a and 72g1b and the position restriction surface 72g2. As a result, the outer conductor 80 fitted on the insulator 70 is restricted from rotating significantly around the central axis X with respect to the insulator 70, and from moving toward the tip side.

A plurality of (four in this example) elongated protrusions 72a are formed on the outer peripheral surface of the tubular portion 72. Each protrusion 72a extends parallel to the central axis X. It is preferable that the plurality of protrusions 72a are positioned at equal intervals around the central axis X on the outer peripheral surface of the tubular portion 72. The protrusions 72a contact the inner peripheral surface of the tubular portion 82 at positions distributed in the circumferential direction.

The tip guide portion 76 is located at the tip side of the tubular portion 72. The tip guide portion 76 has an insertion hole 77 into which the movable inner conductor 42 can be inserted. The central axis X of the tubular portion 72 coincides with the central axis X of the insertion hole 77.

The inner peripheral surface of the insertion hole 77 is tapered so that the diameter gradually decreases toward the inside of the tube portion 72. The tip of the movable inner conductor 42 is guided between the multiple elastic pieces 66 by the tapered inner peripheral surface of the insertion hole 77.

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 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.

The annular back surface of the tip guide portion 76 facing the base end extends perpendicular to the central axis X of the tube portion 72. The elastic pieces 90 and 96 described below can elastically deform in the radial direction of the tube portion 72 on the base end side of the annular back surface.

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.

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

The tubular portion 82 is formed in a cylindrical shape in which the tubular portion 72 can be placed inside. An end elastic piece 90 and at least one additional elastic piece 96 extend from the tip opening edge of the tubular portion 82. The end elastic piece 90 and 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 pieces 90 and at least one additional elastic piece 96 are arranged at equal intervals in the circumferential direction of the tubular portion 82.

When the base end of the insulator 70 is 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.

The movable outer conductor 46 of the relay connector 40 is guided by the outer guide surface 78 of the tip guide portion 76 to the outer periphery 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 outer conductor 46 from the inner periphery, and the outer conductor 80 and the movable outer conductor 46 are connected.

<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. 8 is a perspective view showing the outer conductor 80. As shown in Figs. 2 to 8, the outer conductor 80 includes a tubular portion 82 and elastic pieces 90, 96 extending from an opening edge on the tip side of the tubular portion 82. In this embodiment, the elastic piece 90 includes an end elastic piece 90 and an additional elastic piece 96.

The cylindrical portion 82 is a portion that is fitted onto the insulator 70. In other words, the insulator 70 is housed within the cylindrical portion 82. The cylindrical portion 82 is held in a fixed position relative to the insulator 70, and serves to support the outer conductor 80 in 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 an earth circuit, it can serve to ground the movable outer conductor 46 to the earth circuit.

The tube portion 82 has a first end 84, a tube forming portion 86, and a second end 88.

The tube forming portion 86 has a tube shape, in this case a partial tube shape. The first end portion 84 is connected to one circumferential end side of the tube forming portion 86. The tube forming portion 86 and the first end portion 84 form a tube shape. More specifically, the first end portion 84 and the tube forming portion 86 form one circumference of a tube shape. The first end portion 84 is the end portion on one circumferential side of the tube forming portion 86.

The second end 88 is connected to the tube forming portion 86 on the opposite side to the first end 84. The second end 88 is the other circumferential end of the tube forming portion 86. The tube forming portion 86 is located between the first end 84 and the second end 88.

At least a portion of the first end 84 overlaps with the second end 88. 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 cylinder, and both ends of the tube portion 82 overlap by the amount that exceeds one circumference.

The first end 84 has a first inner end 84a and a first outer end 84b. The second end 88 has a second inner end 88a and a second outer end 88b. The first end 84 and the second end 88 are fixed in a state in which the first inner end 84a is overlapped on the inner side of the second outer end 88b and the second inner end 88a is overlapped on the inner side of the first outer end 84b.

More specifically, a slit 84S is formed along the circumferential direction of the tube portion 82 from the circumferential tip of the first end portion 84 to the base end. The slit 84S is located between the first inner circumferential end portion 84a and the first outer circumferential end portion 84b, and the slit 84S separates the first inner circumferential end portion 84a from the first outer circumferential end portion 84b. The slit 84S may be a slit having a gap where a pair of opposing inner surfaces are separated, or a slit like a gap where a pair of opposing inner surfaces are in contact. In this embodiment, the first inner circumferential end portion 84a is located closer to the elastic pieces 90, 96 than the first outer circumferential end portion 84b.

In addition, a slit 88S is formed along the circumferential direction of the tube portion 82 from the circumferential tip of the second end portion 88 to the base end. The slit 88S is located between the second inner circumferential end portion 88a and the second outer circumferential end portion 88b, and the slit 88S separates the second inner circumferential end portion 88a and the second outer circumferential end portion 88b. The slit 84S and the slit 88S extend in the circumferential direction of the tube portion 82 at the same position in the direction of the central axis X. The slit 88S may be a slit having a gap in which a pair of opposing inner surfaces are separated, or may be a slit like a cut in which a pair of opposing inner surfaces are in contact. In this embodiment, the second inner circumferential end portion 88a is located farther from the elastic pieces 90, 96 than the second outer circumferential end portion 88b.

The first inner end may be located farther from the elastic piece than the first outer end, and the second inner end may be located closer to the elastic piece than the second outer end.

The first outer peripheral end 84b, the tube forming portion 86, and the second outer peripheral end 88b are connected to form a tube shape of the same diameter. In other words, the first outer peripheral end 84b, the tube forming portion 86, and the second outer peripheral end 88b are formed to have a shape that has the same radius of curvature centered on the central axis X. The first outer peripheral end 84b, the tube forming portion 86, and the second outer peripheral end 88b extend beyond one circumference, and the tip of the first outer peripheral end 84b and the tip of the second outer peripheral end 88b are adjacent to each other in the direction along the central axis X.

The first inner peripheral end 84a and the second inner peripheral end 88a protrude inward from the tube forming portion 86. In this embodiment, a first step portion 84k is located between the tube forming portion 86 and the first inner peripheral end 84a. The first step portion 84k protrudes inward from the tube forming portion 86, and the first step portion 84k forms a surface that faces from the first inner peripheral end 84a to the tube forming portion 86. In addition, a second step portion 88k is located between the tube forming portion 86 and the second inner peripheral end 88a. The second step portion 88k protrudes inward from the tube forming portion 86, and the second step portion 88k forms a surface that faces from the second inner peripheral end 88a to the tube forming portion 86.

The first inner peripheral end 84a and the second inner peripheral end 88a protrude inward relative to the first outer peripheral end 84b, the second outer peripheral end 88b, and the tube forming portion 86 by the thickness of the tube portion 82.

It is preferable that at least a portion of the first inner peripheral end 84a and at least a portion of the second inner peripheral end 88a overlap in the circumferential direction of the tubular portion 82.

When the cylindrical portion 72 of the insulator 70 is housed in the cylindrical portion 82, the first inner peripheral end 84a and the second inner peripheral end 88a fit into the positioning recess 72g of the cylindrical portion 72. In this state, the rotation of the outer conductor 80 relative to the insulator 70 is prevented within the range in which the first inner peripheral end 84a and the second inner peripheral end 88a contact one of the pair of side surfaces 72g1a, 72g1b of the recess 72g. Rotation may be restricted by the tip surfaces of the first inner peripheral end 84a and the second inner peripheral end 88a contacting the pair of side surfaces 72g1a, 72g1b, or by the step portions 84k and 88k contacting the pair of side surfaces 72g1a, 72g1b.

When the tube portion 82 tries to open, the first step portion 84k and the second step portion 88k move away from each other and come into contact with the first side surface 72g1a or the second side surface 72g1b. This restricts the opening of the tube portion 82.

The width of the recess 72g in the outer circumferential direction of the insulator 70 may be the same as or different from the maximum width of the first inner circumferential end 84a and the second inner circumferential end 88a in the same direction.

In this embodiment, one of the first inner circumference end portion 84a and the second inner circumference end portion 88a, the first inner circumference end portion 84a, contacts the position control surface 72g2 of the recess 72g, thereby preventing the tube portion 72 of the insulator 70 from being over-inserted into the tube portion 82 of the outer conductor 80.

It is preferable that the bottom surface 72gb of the recess 72g is formed in a position that receives the displacement of the first inner peripheral end portion 84a or the second inner peripheral end portion 88a toward the inner peripheral side.

In this embodiment, the bottom surface 72gb is formed on a surface parallel to the central axis X. When the first inner peripheral end 84a and the second inner peripheral end 88a are disposed within the recess 72g, the tip of the first inner peripheral end 84a is located closer to one of the pair of side surfaces 72g1a, 72g1b of the recess 72g (e.g., the first side surface 72g1a). In this state, the tip of the first inner peripheral end 84a contacts the bottom surface 72gb. This allows the bottom surface 72gb to receive the displacement of the first inner peripheral end 84a toward the inner peripheral side.

The bottom surface 72gb may receive the inward displacement of the first inner peripheral end 84a or the second inner peripheral end 88a by contacting the inward protruding portion of the crimped fixing portions 83a, 83b or by contacting the step portions 84k, 88k.

It is not essential that the bottom surface 72gb and the first inner peripheral end 84a or the second inner peripheral end 88a are in contact with each other. For example, a gap of 1 mm or less may be formed between the first inner peripheral end 84a or the second inner peripheral end 88a and the bottom surface 72gb, and the first inner peripheral end 84a or the second inner peripheral end 88a displaced toward the inner peripheral side may contact the bottom surface 72gb, so that the bottom surface 72gb receives the displacement of the first inner peripheral end 84a or the second inner peripheral end 88a toward the inner peripheral side.

The recess 72g may have a position restriction surface 72g2 that receives the displacement of the end (here, the first inner end 84a) of the first inner end 84a and the second inner end 88a closer to the end elastic piece 90 toward the end elastic piece 90. In this embodiment, the surface of the recess 72g on the end elastic piece 90 side is formed as the position restriction surface 72g2 perpendicular to the central axis X. When the first inner end 84a arranged in the recess 72g is displaced toward the end elastic piece 90, the end surface of the first inner end 84a on the end elastic piece 90 side comes into contact with the position restriction surface 72g2 to restrict the displacement of the first inner end 84a toward the end elastic piece 90.

The insulator 70 may have a receiving surface 70f that receives the displacement of the outer conductor 80 toward the inner circumference at a position closer to the end elastic piece 90 than the recess 72g.

In this embodiment, the insulator 70 has a receiving surface 70f on the tip side 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 on the inner surface side of the base end 84c of the outer conductor 80. In this state, the base end 84c contacts the receiving surface 70f. This allows the receiving surface 70f to receive the displacement of the tube portion 82, in this case the base end 84c, toward the inner circumference.

It is not essential that the receiving surface 70f and the base end 84c are in contact. For example, a gap of 1 mm or less may be formed between the receiving surface 70f and the base end 84c, and the base end 84c 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 84c toward the inner periphery.

The receiving surface 70f may receive the displacement of the base end of the end elastic piece 90 toward the inner circumference.

The first inner end 84a and the second outer end 88b are kept overlapping by the first fixing portion 83a. The first outer end 84b and the second inner end 88a are kept overlapping by the second fixing portion 83b.

In this embodiment, the first fixing portion 83a is the first crimp fixing portion 83a, and the second fixing portion 83b is the second crimp fixing portion 83b.

The first crimping fixing portion 83a is a portion that crimps and fixes the first inner peripheral end portion 84a and the second outer peripheral end portion 88b, and the second crimping fixing portion 83b is a portion that crimps and fixes the first outer peripheral end portion 84b and the second inner peripheral end portion 88a.

In this embodiment, a convex portion 84p is formed by plastic deformation on one of the first inner peripheral end portion 84a and the second outer peripheral end portion 88b, and a concave portion 84q is formed by plastic deformation on the other. The convex portion 84p fits into the concave portion 84q, so that the first inner peripheral end portion 84a and the second outer peripheral end portion 88b are kept overlapped.

More specifically, for example, the overlapped first inner peripheral end 84a and second outer peripheral end 88b are sandwiched and pressed between a press die having a convex portion and a press die having a concave portion. Then, a part of the first inner peripheral end 84a and the second outer peripheral end 88b are extrusion-pressed from the convex portion of the press die toward the concave portion of the press die. The first inner peripheral end 84a and the second outer peripheral end 88b are simultaneously press-molded with a convex portion 84p and a concave portion 84q that fit together (see FIG. 7). For example, the convex portion of the press die is pressed against the outer peripheral surface of the first inner peripheral end 84a, and the concave portion of the press die is disposed on the inner peripheral surface of the second outer peripheral end 88b. By the press processing, a convex portion 84p that protrudes to the inner peripheral side is formed on the first inner peripheral end 84a. Also, a concave portion 84q is formed on the outer peripheral surface of the second outer peripheral end 88b. The convex portion 84p of the first inner end portion 84a fits into the concave portion 84q of the second outer end portion 88b, so that the first inner end portion 84a and the second outer end portion 88b are kept overlapping.

Such a joining structure may be, for example, a structure called spot crimping or a structure called draw lock.

Similarly, the first outer peripheral end 84b and the second inner peripheral end 88a are kept overlapped by a fitting structure of recesses and protrusions formed by plastic deformation.

At least a portion of the end elastic piece 90 extends from the opening edge of the first end 84 toward one side in the circumferential central axis direction of the tubular portion 82. More specifically, the end elastic piece 90 extends from the opening edge on one side of the tubular portion 82 and is a portion that is connected to the movable side outer conductor 46 as the mating terminal. At least a portion of the end elastic piece 90 extends from the first end 84 of the opening edge on one side of the tubular portion 82.

More specifically, the area including the first inner peripheral end 84a and the first outer peripheral end 84b is regarded as the overlapping end 84w.

In this embodiment, the first end 84 has a base end 84c located closer to the opening edge than the overlapping end 84w, i.e., closer to the end elastic piece 90. A base separation slit 84SS is formed between the overlapping end 84w and the base end 84c. The base separation slit 84SS is a slit that runs along the circumferential direction of the tube portion 82 from the circumferential tip of the first end 84 to the base end. The base separation slit 84SS and the slit 84S extend in parallel with a gap between them. The edge of the base end 84c on the end elastic piece 90 side, together with the edge of the tube forming portion 86, forms the circular opening edge of the tube portion 82.

The end elastic piece 90 extends from the opening edge between the base end 84c and the tube forming portion 86 toward one side in the direction of the central axis X. The base end 84c may be omitted, and the end elastic piece may extend from the first inner peripheral end. If the first outer peripheral end is disposed closer to the end elastic piece, the end elastic piece may extend from the first outer peripheral end.

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

The inclined portion 92 is a plate-shaped portion that is directly connected to the base end portion 84c and extends further from the base end portion 84c.

The inclined portion 92 extends from the edge of the base end 84c on the opening side so as to be inclined (here, inclined toward the outer periphery) with respect to the central axis X. Therefore, a bent portion 91V is formed between the inclined portion 92 of the end elastic piece 90 and the base end 84c. The end elastic piece 90 can elastically deform inward and outward directions of the tubular portion 82, mainly in the tip portion from the bent portion 91V.

The bulge 93 extends from the tip of the inclined portion 92 toward one side of the central axis X while forming a curved surface that is convex outward. The part of the bulge 93 that protrudes most toward the outer periphery faces outward in the radial direction of the tube portion 82 and is the contact portion 93a that contacts the movable side outer conductor 46.

The tip guide portion 76 is inclined inward from the tip of the bulge portion 93 toward one side of the central axis X.

When the outer conductor 80 is inserted into the movable outer conductor 46, the tip guide portion 76 comes into contact with the opening edge of the movable outer conductor 46, guiding the end elastic piece 90 to the inner periphery of the movable outer conductor 46. When the outer conductor 80 is inserted into the movable outer conductor 46, the inclined portion 92 is mainly elastically deformed 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 outer conductor 46. In this state, a force toward the inner periphery acts on the first end portion 84 connected to the base end of the end elastic piece 90. For this reason, it is desirable to firmly support the first end portion 84 so that it does not displace toward the inner periphery. As described above, both ends of the tube 82 are fixed by the overlapping structure between the first inner end 84a and the second outer end 88b, and the overlapping structure between the first outer end 84b and the second inner end 88a, so that the first end 84 is firmly supported so that it does not displace inward.

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 multiple additional elastic pieces 96, specifically, seven additional elastic pieces 96. In other words, the outer conductor 80 includes multiple elastic pieces 90, 96, more specifically, eight elastic pieces 90, 96.

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.

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.

When the outer conductor 80 is inserted into the movable outer conductor 46, the multiple elastic pieces 90, 96 contact the inner periphery of the movable outer conductor 46 at equal intervals along the circumferential direction. Since the multiple elastic pieces 90, 96 have the same shape and are arranged at equal intervals along the circumferential direction of the tube portion 82, the multiple elastic pieces 90, 96 are pressed against the movable outer conductor 46 under the same conditions. In addition, if the multiple elastic pieces are supported by a tube member with a gap, the tube member may elastically deform inward and outward near the gap, so the force supporting the elastic pieces may be weak, and the elastic force pressing the elastic pieces against the mating conductor may be weak. In this embodiment, since the first end 84 is supported by the second end 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 the desired design contact load.

<Effects, etc.>
In the coaxial connector 60 configured as described above, the first inner peripheral end 84a is overlapped on the inner peripheral side of the second outer peripheral end 88b, and the first outer peripheral end 84b is overlapped on the outer peripheral side of the second inner peripheral end 88a, so that the first end 84 is positioned in both the inner peripheral side and the outer peripheral side with respect to the second end 88. This makes it easy to maintain the cylindrical portion 82 in a constant shape. 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.

The first inner peripheral end 84a and the second outer peripheral end 88b are kept overlapping by the first fixing portion 83a, and the first outer peripheral end 84b and the second inner peripheral end 88a are kept overlapping by the second fixing portion 83b. This makes it easier to maintain the cylindrical portion 82 in a constant shape. This makes it easier to obtain the desired contact load when connecting the coaxial connector 60 to the mating movable outer conductor 46.

In addition, since the first fixing portion 83a is the first crimp fixing portion 83a and the second fixing portion 83b is the second crimp fixing portion 83b, the outer conductor 80 can be manufactured at a lower cost than when the outer conductor 80 is formed by cutting or welding a plate material.

In addition, since a slit 84S is formed between the first inner peripheral end 84a and the second outer peripheral end 88b, it is easy to set the first inner peripheral end 84a and the first outer peripheral end 84b to overlapping positions in the circumferential direction of the tube portion 82 while shifting them to different positions in the radial direction of the tube portion 82. In addition, since a slit 84S is formed between the second inner peripheral end 88a and the second outer peripheral end 88b, it is easy to set the second inner peripheral end 88a and the second outer peripheral end 88b to overlapping positions in the circumferential direction of the tube portion 82 while shifting them to different positions in the radial direction of the tube portion 82. The slits 84S and 88S make it easier to set the overlapping points of the first inner peripheral end 84a and the second outer peripheral end 88b and the overlapping points of the first outer peripheral end 84b and the second inner peripheral end 88a in positions close to each other in the circumferential direction of the tube portion 82, and the first end 84 is more reliably positioned in both the inner and outer peripheral directions relative to the second end 88.

The first end 84 has a base end 84c located closer to the opening edge than the overlapping end 84w, and a base separation slit 84SS is formed between the overlapping end 84w and the base end 84c. Therefore, the processing of the overlapping end 84w is unlikely to affect the base end 84c. Therefore, the elastic pieces 90, 96 including the end elastic piece 90 are easily held firmly in a fixed position suitable for connection with the mating movable side outer conductor 46, and the desired contact load is easily obtained.

The elastic piece 90 includes an end elastic piece 90 and at least one additional elastic piece 96, and the end elastic piece 90 and the at least one additional elastic piece 96 are arranged at intervals in the circumferential direction of the tube portion 82. Therefore, the multiple elastic pieces 90, 96 are pressed against the movable side outer conductor 46 at multiple points distributed in the circumferential direction of the tube portion 82, making it easy for the outer conductor 80 to be electrically connected to the movable side outer conductor 46 well.

In addition, the coaxial connector 60 includes an inner conductor 62 and an insulator 70 that houses the inner conductor 62, and the insulator 70 is housed within the cylindrical portion 82, allowing the outer conductor 80 to be electrically connected satisfactorily to the mating movable outer conductor 46.

The first inner peripheral end 84a and the second inner peripheral end 88a protrude further inward than the tube forming portion 86, and the first inner peripheral end 84a and the second inner peripheral end 88a fit into the recess 72g of the insulator 70. This allows the outer conductor 80 to be positioned relative to the insulator 70 using the first inner peripheral end 84a and the second inner peripheral end 88a.

When the first inner circumferential end 84a and the second inner circumferential end 88a attempt to displace toward the end elastic piece 90, the end of the first inner circumferential end 84a and the second inner circumferential end 88a that is closer to the end elastic piece 90, in this case the first inner circumferential end 84a, comes into contact with the position restriction surface 72g2 of the recess 72g, restricting the displacement. This ensures that the outer conductor 80 is more reliably positioned relative to the insulator 70.

In addition, when the first inner peripheral end 84a and the second inner peripheral end 88a attempt to move inward, the first inner peripheral end 84a or the second inner peripheral end 88a comes into contact with the bottom surface 72gb of the recess 72g, restricting the movement. This makes it easier for the tube portion 82 to maintain a constant cylindrical shape.

The first step 84k is located between the tube forming portion 86 and the first inner peripheral end 84a, and the second step 88k is located between the tube forming portion 86 and the second inner peripheral end 88a. Therefore, when the tube portion 82 tries to open, the first step 84k contacts the first side surface 72g1a of the recess 72g, and the second step 88k contacts the second side surface 72g1b of the recess 72g. This prevents the tube portion 82 from expanding.

From the viewpoint of suppressing the expansion of the tube portion 82, it is preferable to bring each of the side surfaces 172g1a and 172g1b of the recess 172g corresponding to the recess 72g as close as possible to the first step portion 184k of the first inner peripheral end portion 184a corresponding to the first inner peripheral end portion 84a and the second step portion 188k of the second inner peripheral end portion 188a corresponding to the second inner peripheral end portion 88a, as in the case of the coaxial connector 160 according to the modified example shown in FIG. 9. For example, each of the side surfaces 172g1a and 172g1b may be brought as close as 1 mm to the opposing first step portion 184k or second step portion 188k. In this case, the tip surfaces of the first inner peripheral end 184a and the second inner peripheral end 188a should be positioned in the circumferential direction of the tube portion 82 close to the first step portion 184k or the second step portion 188k, or in a position that does not protrude further than the first step portion 184k or the second step portion 188k.

In addition, since the insulator 70 has a receiving surface 70f located closer to the end elastic piece 90 than the recess 72g, the recess 72g positions the first inner peripheral end 84a and the second outer peripheral end 88b, while the receiving surface 70f prevents the outer conductor 80 from displacing inward, so that the tubular portion 82 is more reliably maintained in its tubular shape.

[Variations]
In the above embodiment, an example has been described in which the first fixing portion 83a and the second fixing portion 83b are crimp fixing portions. The fixing portions may be welded portions by laser welding, resistance welding, or the like, or may be soldered fixing portions. The first fixing portion and the second fixing portion may be omitted, and the end of the tube portion 82 may be fixed by a configuration in which the first inner peripheral end portion 84a and the second outer peripheral end portion 88b, and the second inner peripheral end portion 88a and the second outer peripheral end portion 88b alternately sandwich the end of the tube portion 82 from the inner and outer peripheral sides.

In the above embodiment, an example was described in which the first inner peripheral end 84a and the second outer peripheral end 88b are overlapped, and the first outer peripheral end 84b and the second inner peripheral end 88a are overlapped. There may be three or more combinations of overlapping inner peripheral end and outer peripheral end.

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 multiple sets of inner peripheral end portions and outer peripheral end portions are overlapped with the inner peripheral side and outer peripheral side positions alternately changed may be applied to the base end tubular portion 64 of the inner conductor 62 in the above embodiment.

The configurations described in the above embodiment and each modified example can be combined as appropriate as long as they are not mutually inconsistent.

10 Equipment 12 Case 13 First case 14 Second case 15 Bottom 16 Holding tube portion 17 Holding partition portion 17h Holding hole 18a Locking protrusion 20 Electrical component 21 Circuit board 22 Imaging element 30 External connection coaxial connector 32 External connection inner conductor 34 External connection insulator 36 External connection outer conductor 40 Relay connector 42 Movable side inner conductor 44 Movable side insulator 46 Movable side outer conductor 60, 160 Coaxial connector (connector)
62 Inner conductor 64 Base end tube portion 64P Positioning convex portion 64a Extension piece 64b Locking protrusion 66 Elastic piece 70 Insulator 70f Receiving surface 72 Tubular portion 72a Protruding portion 72g, 172g Recess 72g1a, 172g1a First side surface 72g1b, 172g1b Second side surface 72g2 Position restriction surface 72gb Bottom surface 76 Tip guide portion 77 Insertion hole 78 Outer peripheral guide surface 80 Outer conductor (conductor for connector)
82 Cylinder portion 83a First fixing portion (first crimp fixing portion)
83b Second fixing portion (second crimp fixing portion)
84 First end 84S, 88S Slit 84SS Base separation slit 84a, 184a First inner peripheral end 84b First outer peripheral end 84c Base end 84k, 184k First step portion 84p Convex portion 84q Concave portion 84w Overlapping end 86 Tube forming portion 88 Second end 88a, 188a Second inner peripheral end 88b Second outer peripheral end 88k, 188k Second step portion 90 End elastic piece (elastic piece)
91V Bending portion 92 Inclined portion 93 Bulging portion 93a Contact portion 94 Tip guide portion 96 Additional elastic piece (elastic piece)
X central axis

Claims (12)

A connector having a connector conductor,
the conductor for connector 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 in a circumferential direction of the cylinder forming portion;
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,
The first end portion has a first inner peripheral end portion and a first outer peripheral end portion,
the second end portion has a second inner peripheral end portion and a second outer peripheral end portion,
A connector, wherein the first end and the second end are fixed in a state in which the first inner end is overlapped on the inner side of the second outer end and the first outer end is overlapped on the outer side of the second inner end. 2. The connector of claim 1,
The cylindrical portion is
a first fixing portion that holds the first inner peripheral end portion and the second outer peripheral end portion in an overlapping state;
a second fixing portion that holds the first outer circumferential end portion and the second inner circumferential end portion in an overlapping state;
The connector further comprises: 3. The connector of claim 2,
the first fixing portion is a first crimping fixing portion that crimps and fixes the first inner peripheral end portion and the second outer peripheral end portion,
the second fixing portion is a second crimp fixing portion that crimps and fixes the first outer circumferential end portion and the second inner circumferential end portion of the connector. The connector according to claim 1 or 2,
A connector, comprising: a slit formed between the first inner peripheral end and the first outer peripheral end, and between the second inner peripheral end and the second outer peripheral end. The connector according to claim 1 or 2,
When a region of the first end portion including the first inner peripheral end portion and the first outer peripheral end portion is defined as an overlapping end portion,
the first end portion has a base end portion located closer to the opening edge than the overlapping end portion;
A connector having a base separation slit formed between the overlap end and the base end. The connector according to claim 1 or 2,
The elastic piece further includes at least one additional elastic piece different from the end elastic piece,
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. 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. 8. The connector of claim 7,
the first outer circumferential end portion, the tube forming portion, and the second outer circumferential end portion are connected to each other to form a tube shape having the same diameter,
the first inner peripheral end portion and the second inner peripheral end portion each protrude further inward than the tube forming portion,
A recess is formed on the outer peripheral surface of the insulator,
The first inner peripheral end and the second inner peripheral end are fitted into the recess. 8. The connector of claim 7,
A connector, wherein the recess has a position control surface that receives displacement of the first inner circumferential end portion and the second inner circumferential end portion, whichever is closer to the end elastic piece, toward the end elastic piece. 8. The connector of claim 7,
A connector, wherein a bottom surface of the recess is formed at a position that receives displacement of the first inner periphery side end portion or the second inner periphery side end portion toward the inner periphery side. 8. The connector of claim 7,
a first step portion is located between the tube forming portion and the first inner circumferential end portion,
a second step portion is located between the tube forming portion and the second inner circumferential end portion,
A connector, wherein the recess has a first side surface facing the first step portion in the circumferential direction of the tubular portion, and a second side surface facing the second step portion in the circumferential direction of the tubular portion. 8. The connector of claim 7,
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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