connector

Abstract

To suppress the decrease in the impedance of an inner conductor.SOLUTION: A connector 10 includes an inner conductor 21, an outer conductor 41 surrounding the inner conductor 21, and a dielectric 61 disposed between the inner conductor 21 and the outer conductor 41, the dielectric 61 includes a cavity 63 extending in a predetermined direction, and a locking hole 64 formed in the inner peripheral surface of the cavity 63, the inner conductor 21 includes an inner conductor body 23 disposed within the cavity 63, and a locking portion 24 that is locked by entering into the locking hole 64 projecting from the inner conductor body 23, and the locking portion 24 extends along the predetermined direction and has a double-supported beam shape in which the upper and lower ends are supported by the inner conductor body 23.SELECTED DRAWING: Figure 4

Description

[Technical field]

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

[0002] Patent Document 1 discloses a connector. This connector has a configuration in which a second conductor component attached to the tip of a coaxial cable is connected to a first conductor component. The second conductor component includes an outer conductor and an inner conductor held in the center of the outer conductor by an insulating part. There is no description of a holding structure for the inner conductor. Patent Document 2 describes providing a lance on a socket contact and locking the lance into a locking hole in a connector housing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2018-512707 [Patent Document 2] JP 2006-128032 A Summary of the Invention [Problem to be solved by the invention]

[0004] The technology of Patent Document 2 is applicable to the holding structure of the inner conductor in Patent Document 1. However, since the lance is configured to be supported by a cantilever, there is a risk of a gap occurring around the lance, which may result in a decrease in impedance.

[0005] Therefore, an object of the present disclosure is to provide a technique capable of suppressing a decrease in impedance of an inner conductor. [Means for solving the problem]

[0006] The connector of the present disclosure comprises an inner conductor, an outer conductor surrounding the inner conductor, and a dielectric arranged between the inner conductor and the outer conductor, the dielectric having a cavity extending in a predetermined direction and a locking hole formed on the inner surface of the cavity, the inner conductor having an inner conductor main body arranged in the cavity and a locking portion protruding from the inner conductor main body and inserted into the locking hole to be locked, the locking portion extending along the predetermined direction and having a doubly supported beam shape with upper and lower ends supported by the inner conductor main body. Effect of the Invention

[0007] According to the present disclosure, a decrease in impedance of the inner conductor can be suppressed. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a connector according to a first embodiment. [Diagram 2] FIG. 2 is a perspective view of the first inner conductor, the second inner conductor, the first outer conductor, the second outer conductor, the first dielectric, and the second dielectric in an assembled state. [Diagram 3] FIG. 3 is a perspective view illustrating a state before the second outer conductor is fitted onto the first outer conductor. [Figure 4] FIG. 4 is a perspective view of the first inner conductor and the second inner conductor. [Diagram 5] FIG. 5 is a side cross-sectional view of the connector and the mating connector. [Figure 6] FIG. 6 is an enlarged view of area Z shown in FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along line AA in FIG. [Figure 8] FIG. 8 is a cross-sectional view taken along line BB in FIG. [Figure 9] 9 is a cross-sectional view of the first inner conductor, the second inner conductor, the first outer conductor, the second outer conductor, the first dielectric, and the second dielectric in a cross section taken along line CC in FIG. [Figure 10] FIG. 10 is a cross-sectional view of the first inner conductor and the first dielectric in a cross section taken along line DD in FIG. [Figure 11] FIG. 11 is a perspective view illustrating a state before a different type of second outer conductor is fitted onto the first outer conductor. 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. The connector of the present disclosure comprises: (1) An electrical connector comprising an inner conductor, an outer conductor surrounding the inner conductor, and a dielectric arranged between the inner conductor and the outer conductor, the dielectric having a cavity extending in a predetermined direction and a locking hole formed in the inner surface of the cavity, the inner conductor having an inner conductor body arranged in the cavity and a locking portion protruding from the inner conductor body and inserted into the locking hole to be locked, the locking portion extending along the predetermined direction and having a doubly supported beam shape with upper and lower ends supported by the inner conductor body.

[0010] According to this connector, the locking portion is locked in the locking hole, thereby preventing the inner conductor from coming off the dielectric. Moreover, the locking portion has a double-supported beam shape with upper and lower ends supported by the inner conductor body. Therefore, according to this connector, it is possible to prevent a decrease in impedance of the inner conductor compared to a configuration in which the locking portion is a normal lance.

[0011] (2) The engaging portion is preferably curved.

[0012] According to this configuration, it is possible to reduce the insertion force required when inserting the inner conductor into the dielectric.

[0013] (3) It is preferable that the connector further includes a second inner conductor electrically connected to the inner conductor. An entrance hole is formed in an inner peripheral surface of the cavity at a position facing the locking hole, the second inner conductor is disposed in the entrance hole, and the locking hole and the entrance hole are preferably disposed coaxially with each other via the cavity.

[0014] According to this configuration, it is possible to perform die cutting at one time using the same linear die that forms the locking hole and the entry hole.

[0015] (4) It is preferable that the engaging portion has a convex surface protruding from the inner conductor body and a concave surface formed on the back side of the convex surface, and when the second inner conductor is properly connected to the inner conductor, a tip of the second inner conductor is positioned inside the concave surface.

[0016] According to this configuration, when the inner conductor is in a partially inserted state, the tip of the second inner conductor abuts against the inner conductor, making it easy to determine whether the inner conductor is in a partially inserted state.

[0017] (5) It is preferable that a guide groove is formed on an inner peripheral surface of the cavity, the guide groove being formed along the predetermined direction and communicating with the locking hole.

[0018] According to this configuration, the locking portion of the inner conductor to be inserted into the cavity can be guided into the locking hole by the guide groove.

[0019] [Details of the embodiment of the present disclosure] Specific examples of the present disclosure will be described below with reference to the drawings. Note that the present invention 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.

[0020] <Embodiment 1> A connector 10 of a first embodiment is disclosed in Fig. 1. In the following description, the up-down direction shown in Fig. 5 is regarded as the up-down direction of the connector 10. The left side shown in Fig. 5 is regarded as the front side of the connector 10, and the right side is regarded as the rear side of the connector 10. The left-right direction when the connector 10 is viewed from the front is regarded as the left-right direction of the connector 10. The up-down direction of the connector 10 corresponds to an example of a "predetermined direction".

[0021] (Overview of Connector 10) As shown in FIG. 1, the connector 10 is L-shaped. As shown in FIG. 5, a mating connector 90 is fitted to one end of the connector 10, and an electric wire 80 is electrically connected to the other end of the connector 10. The electric wire 80 is a shielded electric wire, and in this embodiment, is configured as a coaxial cable. The electric wire 80 has an inner conductor 81, an insulator 82, a shield layer 83, and a sheath 84. The insulator 82 surrounds the inner conductor 81. The shield layer 83 surrounds the insulator 82. The sheath 84 surrounds the shield layer 83. The mating connector 90 has a mating housing 91, a mating inner conductor 92, and a mating outer conductor 93.

[0022] As shown in FIG. 5, the connector 10 includes a housing 11, a first inner conductor 21, a second inner conductor 22, a first outer conductor 41, a second outer conductor 42, a first dielectric 61, a second dielectric 62, a sleeve 70, a first sealing member 71, a second sealing member 72, and a pull-out prevention member 73.

[0023] (Configuration of housing 11) The housing 11 has insulating properties and is made of synthetic resin. The housing 11 is L-shaped as shown in Fig. 1. The housing 11 has a housing main body 12, a fitting hole 13, a fitting groove 14, an inner hood portion 15, an outer hood portion 16, a lock arm 17, and a first removal prevention engaging portion 18 as shown in Figs. 1 and 5.

[0024] The housing body 12 has a cylindrical shape (more specifically, a rectangular cylindrical shape) that extends in the vertical direction, as shown in Fig. 5. The lower end of the housing body 12 opens downward, and the upper end is closed.

[0025] 5, the fitting hole 13 is formed penetrating from the inner peripheral surface of the housing body 12 to the outside. That is, the fitting hole 13 penetrates a wall portion (the front wall in this embodiment) of the housing body 12 in the front-rear direction. The fitting hole 13 is open to the front of the housing 11. The fitting hole 13 is provided on the upper end side of the housing body 12 relative to the center in the up-down direction. The second outer conductor 42 is fitted into the fitting hole 13.

[0026] 5, the fitting groove 14 is formed along the front-rear direction on the inner circumferential surface of the fitting hole 13. The fitting groove 14 is open in the front and rear.

[0027] 5, the inner hood portion 15 has a cylindrical shape that protrudes forward from a portion of the housing main body 12 surrounding the fitting hole 13. The inner hood portion 15 has a cylindrical shape (more specifically, a cylindrical shape) that extends along the front-rear direction. The inner space of the inner hood portion 15 communicates with the fitting hole 13 and is open to the front of the housing 11.

[0028] As shown in Fig. 5, the outer hood portion 16 surrounds the outer periphery of the inner hood portion 15. The outer hood portion 16 has a cylindrical shape extending along the front-rear direction. The inner space of the outer hood portion 16 is open to the front of the housing 11. The front end of the outer hood portion 16 is located forward of the front end of the inner hood portion 15.

[0029] The lock arm 17 is disposed inside the outer hood portion 16 as shown in Fig. 5. The lock arm 17 has a shape extending along the front-rear direction. The front end side of the lock arm 17 is supported so as to be swingable in the up-down direction. The lock arm 17 is supported by the outer hood portion 16 as shown in Figs. 7 and 8. The lock arm 17 is engaged with a mating engaging portion 94 of a mating housing 91 in a mating connector 90 (see Fig. 5).

[0030] 1, the first removal prevention locking portion 18 has a shape that protrudes from the outer peripheral surface (both left and right side surfaces in this embodiment) of the housing body 12. The first removal prevention locking portion 18 is provided at the lower end portion of the housing body 12. A removal prevention member 73 is locked to the first removal prevention locking portion 18.

[0031] (Configuration of the first inner conductor 21) The first inner conductor 21 corresponds to an example of an "inner conductor". The first inner conductor 21 is a plate-like member, and is formed by bending a metal plate. As shown in Figs. 4 to 6, the first inner conductor 21 has a shape extending in the up-down direction. The first inner conductor 21 has a first inner conductor body 23, a locking portion 24, a stabilizer 25, and a barrel portion 26.

[0032] The first inner conductor body 23 corresponds to an example of an "inner conductor body". As shown in Figs. 4, 6 and 10, the first inner conductor body 23 has a first bottom plate portion 28, a second bottom plate portion 29, a pair of side plate portions 30, a pair of first connection portions 31, and a pair of guide portions 32. The first bottom plate portion 28 and the second bottom plate portion 29 are arranged at a distance from each other in the up-down direction. The thickness direction of the first bottom plate portion 28 and the second bottom plate portion 29 is along the front-rear direction. The pair of side plate portions 30 are continuous with both the left and right sides of the first bottom plate portion 28 and the second bottom plate portion 29 and have a shape that protrudes forward. The pair of side plate portions 30 are arranged at a distance from each other in the left-right direction. The pair of first connection portions 31 are extended forward from the front ends of the pair of side plate portions 30. The pair of first connection portions 31 are extended from a part of the front ends of the pair of side plate portions 30 in the up-down direction. The minimum distance between the pair of first connection portions 31 is smaller than the distance between the pair of side plate portions 30. The pair of guide portions 32 extend forward from front ends of the pair of first connection portions 31. The distance between the pair of guide portions 32 becomes larger toward the front.

[0033] As shown in FIG. 6, the locking portion 24 extends in the up-down direction. The locking portion 24 has a double-supported beam shape with its upper and lower ends supported by the first inner conductor body 23. The lower end of the locking portion 24 is supported by the upper end of the first bottom plate portion 28, and the upper end of the locking portion 24 is supported by the lower end of the second bottom plate portion 29. The locking portion 24 is plate-shaped and can be deformed in the front-rear direction. The thickness direction of the locking portion 24 is along the front-rear direction. The locking portion 24 protrudes rearward from the first inner conductor body 23. The locking portion 24 is curved. The locking portion 24 has a convex surface 24A protruding from the first inner conductor body 23 and a concave surface 24B formed on the back side of the convex surface 24A. That is, the convex surface 24A is formed on the rear surface of the locking portion 24, and the concave surface 24B is formed on the front surface of the locking portion 24.

[0034] 4 and 10, the stabilizer 25 is provided at a front end of one of the pair of side plate portions 30 (the right side plate portion 30 in this embodiment). The stabilizer 25 is disposed at a distance in the up-down direction from the pair of first connection portions 31. More specifically, the stabilizer 25 is disposed below the first connection portions 31. The stabilizer 25 is bent and protrudes outward in the left-right direction.

[0035] As shown in FIG. 4, the barrel portion 26 is crimped to an inner conductor 81 of an electric wire 80 and is electrically connected to the inner conductor 81.

[0036] (Configuration of the first outer conductor 41) The first outer conductor 41 is a member formed into a cylindrical shape by casting or cutting. "Formed into a cylindrical shape by casting or cutting" means that the process of forming into a cylindrical shape is performed by casting or cutting, and does not mean that a cut metal plate is bent into a cylindrical shape. Casting also includes die casting. As shown in FIG. 5, the first outer conductor 41 surrounds the first inner conductor 21. As shown in FIG. 3 and FIG. 5, the first outer conductor 41 has an accommodating portion 43, a cylindrical portion 44, a conductor side fitting hole 45, a conductor side fitting groove 46, a first locking portion 47, a through hole 48, and a sleeve positioning portion 49.

[0037] As shown in Figs. 3 and 5, the accommodating portion 43 is formed to open at one end side of the first outer conductor 41. The opening direction of the accommodating portion 43 is forward. The tubular portion 44 extends along the up-down direction. The tubular portion 44 is formed to open at the other end side of the first outer conductor 41. The opening direction of the tubular portion 44 is downward. In other words, the opening direction of the accommodating portion 43 intersects (orthogonal in this embodiment) with the opening direction of the tubular portion 44. The inner space of the first outer conductor 41 has a shape in which a space extending rearward from the opening of the accommodating portion 43 and a space extending upward from the opening of the tubular portion 44 are perpendicular to each other.

[0038] The conductor side fitting hole 45 is formed inside the accommodating portion 43, as shown in Figures 3 and 5. The conductor side fitting hole 45 penetrates the peripheral wall of the tubular portion 44 and communicates with the inner space of the tubular portion 44. The conductor side fitting hole 45 is open to the front of the first outer conductor 41. The conductor side fitting hole 45 is disposed on the upper end side of the first outer conductor 41 relative to the vertical center. The conductor side fitting groove 46 is formed along the front-rear direction on the inner peripheral surface of the conductor side fitting hole 45. The conductor side fitting groove 46 is open to the front and rear.

[0039] As shown in Figs. 3 and 9, the first locking portion 47 is provided inside the conductor-side fitting hole 45 in the accommodating portion 43. The first locking portion 47 is provided in pairs on both the left and right sides. The first locking portion 47 has a shape that protrudes inward from the inner circumferential surface of the accommodating portion 43. The front surface of the first locking portion 47 is inclined backward as it approaches the center of the accommodating portion 43 when viewed from the front. The rear surface of the first locking portion 47 is aligned in the up-down and left-right directions.

[0040] The through holes 48 are formed at positions corresponding to the pair of first locking portions 47, as shown in Fig. 3 and Fig. 9. In this embodiment, the "positions corresponding to the first locking portions" are rearward of the first locking portions 47 (i.e., rearward of the first locking portions 47 inside the accommodating portion 43). The through holes 48 connect the outer space and the inner space of the accommodating portion 43. The through holes 48 are punched holes formed when the first outer conductor 41 is manufactured.

[0041] As shown in Fig. 2, the sleeve positioning portion 49 has a shape that protrudes from the outer circumferential surface of the cylindrical portion 44. The sleeve positioning portions 49 protrude from both the left and right sides of the cylindrical portion 44. As shown in Fig. 8, the sleeve 70 is disposed below the sleeve positioning portion 49. The sleeve positioning portion 49 restricts the upward movement of the sleeve 70.

[0042] (Configuration of the first dielectric 61) The first dielectric 61 corresponds to an example of a "dielectric". As shown in Fig. 5, Fig. 6 and Fig. 10, the first dielectric 61 is disposed between the first inner conductor 21 and the first outer conductor 41. The first dielectric 61 has a cavity 63, a locking hole 64, an entrance hole 65, a guide groove 66 and a stabilizer fitting groove 67.

[0043] 5, the cavity 63 extends in the vertical direction. The cavity 63 is open below the first dielectric 61.

[0044] 6, the locking hole 64 is formed in the inner circumferential surface (more specifically, the rear surface of the inner circumferential surface) of the cavity 63. The locking portion 24 of the first inner conductor 21 fits into the locking hole 64.

[0045] 6, the entrance hole 65 is formed in the inner circumferential surface of the cavity 63 (more specifically, the surface on the front side of the inner circumferential surface). The entrance hole 65 is formed at a position facing the locking hole 64 in the front-rear direction. The second inner conductor 22 is placed in the entrance hole 65. The locking hole 64 and the entrance hole 65 are coaxially arranged with the cavity 63 interposed therebetween.

[0046] 6, the guide groove 66 is formed on the inner circumferential surface of the cavity 63. The guide groove 66 is formed along the vertical direction and communicates with the locking hole 64.

[0047] 10, the stabilizer fitting groove 67 is formed on the inner circumferential surface of the cavity 63. The stabilizer fitting groove 67 is formed along the up-down direction. The stabilizer fitting groove 67 is formed at a position corresponding to the stabilizer 25 of the first inner conductor 21. The stabilizer 25 of the first inner conductor 21 fits into the stabilizer fitting groove 67.

[0048] (Configuration of the second inner conductor 22) The second inner conductor 22 is a plate-like member and is formed by bending a metal plate. As shown in Figs. 4 and 6, the second inner conductor 22 extends in the front-rear direction. The second inner conductor 22 is connected to the first inner conductor 21 in an intersecting manner (more specifically, perpendicular to the first inner conductor 21). The second inner conductor 22 and the first inner conductor 21 form an L-shape. The second inner conductor 22 has a second inner conductor body 34, an inner conductor side mating connection portion 35, a second connection portion 36, an inner conductor side protrusion 37, and a retaining projection 38.

[0049] As shown in FIGS. 4 and 6, the second inner conductor body 34 has a tubular shape (more specifically, a cylindrical shape) that extends in the front-rear direction.

[0050] 4 and 6, the inner conductor side mating connection portion 35 is disposed forward of the second inner conductor body 34. The inner conductor side mating connection portion 35 is electrically connected to a mating inner conductor 92 (see FIG. 5) of the mating connector 90.

[0051] As shown in Fig. 4 and Fig. 6, the second connection portion 36 is disposed rearward of the second inner conductor body 34. The second connection portion 36 is configured as a tab. The second connection portion 36 protrudes rearward beyond the rear end of the second dielectric 62. The second connection portion 36 is electrically connected to the first connection portion 31 of the first inner conductor 21.

[0052] 6 , the inner conductor side protrusion 37 is provided on the outer circumferential surface of the second inner conductor body 34 and protrudes upward from the outer circumferential surface. When the second inner conductor 22 is inserted into the second dielectric 62, if the inner conductor side protrusion 37 hits the rear surface of the second dielectric 62, forward movement of the second inner conductor 22 relative to the second dielectric 62 is restricted.

[0053] 9, the retaining projections 38 are provided on both the left and right sides of the second inner conductor body 34 and protrude outward in the left-right direction. The retaining projections 38 prevent the second inner conductor 22, which is properly inserted into the second dielectric 62, from slipping out backward.

[0054] (Configuration of the second outer conductor 42) The second outer conductor 42 is a plate-like member and is formed by bending a metal plate. As shown in Fig. 6, the second outer conductor 42 surrounds the second inner conductor 22. The second outer conductor 42 has a tubular shape (more specifically, a cylindrical shape) extending in the front-rear direction. The second outer conductor 42 is open at the front and rear. As shown in Fig. 3, the second outer conductor 42 has an outer conductor main body 50, a second locking portion 51, a protruding portion 52, a front stop portion 53, and a mating connecting portion 54.

[0055] As shown in FIG. 3, the outer conductor body 50 has a tubular shape (more specifically, a cylindrical shape).

[0056] As shown in Figs. 3 and 9, the second locking portion 51 protrudes rearward from the outer conductor body 50. The second locking portion 51 is cantilevered by the outer conductor body 50. The second locking portion 51 is provided on both the left and right sides of the outer conductor body 50. The second locking portion 51 is plate-shaped and can be flexibly deformed toward the center of the second outer conductor 42 (i.e., radially inward) when viewed from the front. A locking hole 55 is formed in the second locking portion 51, penetrating the second locking portion 51. The first locking portion 47 fits into the locking hole 55, whereby the second locking portion 51 is engaged with the first locking portion 47 of the first outer conductor 41.

[0057] 3, the protrusion 52 protrudes upward from the upper surface of the outer conductor body 50. The protrusion 52 is provided at the rear end of the outer conductor body 50.

[0058] 3, the front stopper 53 is disposed forward of the outer conductor body 50. The front stopper 53 restricts the second dielectric 62 disposed inside the second outer conductor 42 from moving forward.

[0059] As shown in FIG. 3, the mating connection part 54 is supported by the outer conductor body 50. A part of the outer conductor body 50 is cut out. The mating connection part 54 is disposed in the cutout part. The mating connection part 54 is cantilevered on the peripheral edge of the cutout part of the outer conductor body 50 by supporting the rear end part. The mating connection part 54 is flexible. The mating connection part 54 is in elastic contact with the mating outer conductor 93 (see FIG. 5) of the mating connector 90 and is electrically connected. The mating connection part 54 has a guide surface 56 that guides the mating outer conductor 93 when connecting with the mating outer conductor 93. The guide surface 56 is formed at the front end part of the mating connection part 54. The guide surface 56 is inclined radially outward as it goes rearward. The guide surface 56 guides the mating outer conductor 93 radially outward of the mating connection part 54. The radially outer side of the mating connection portion 54 is electrically connected to the mating outer conductor 93 .

[0060] (Configuration of second dielectric 62) 6, the second dielectric 62 is disposed between the second inner conductor 22 and the second outer conductor 42. The second dielectric 62 has a tubular shape (more specifically, a cylindrical shape).

[0061] (Other configurations) The sleeve 70 shown in FIG. 5 is tubular (more specifically, cylindrical). The sleeve 70 is made of, for example, metal. The first seal member 71 and the second seal member 72 shown in FIG. 5 are tubular (more specifically, cylindrical). The first seal member 71 and the second seal member 72 are made of, for example, rubber. The first seal member 71 is attached to the outer periphery of the electric wire 80. The second seal member 72 is attached to the outer periphery of the inner hood portion 15 of the housing 11. The removal prevention member 73 is a member that prevents the first seal member 71 arranged in the housing 11 from coming off. As shown in FIG. 1 and FIG. 5, the removal prevention member 73 has an insertion hole 74 and a second removal prevention locking portion 75. The electric wire 80 is inserted into the insertion hole 74. The second removal prevention locking portion 75 is locked to the first removal prevention locking portion 18 of the housing 11.

[0062] (Assembly of connector 10) The description will be given mainly with reference to Fig. 5. First, the retaining member 73, the first seal member 71, and the sleeve 70 are attached to the electric wire 80 in this order from the tip side. Then, at the tip of the electric wire 80, the sheath 84 is removed so as to expose the shielding layer 83. Further toward the tip side of the electric wire 80, the insulator 82 is removed so as to expose the inner conductor 81. The exposed inner conductor 81 is crimped to the barrel portion 26 of the first inner conductor 21.

[0063] The first inner conductor 21 is inserted from below into the cavity 63 of the first dielectric 61. The first inner conductor 21 is inserted into the cavity 63 in a direction such that the stabilizer 25 fits into the stabilizer fitting groove 67 of the first dielectric 61. In the process of inserting the first inner conductor 21 into the cavity 63, the locking portion 24 of the first inner conductor 21 fits into a guide groove 66 formed on the inner circumferential surface of the cavity 63 and slides upward along the guide groove 66. When the locking portion 24 is fitted into the guide groove 66, it is deflected and deformed by receiving a reaction force from the bottom surface of the guide groove 66. When the first inner conductor 21 is inserted to the correct insertion position, the locking portion 24 enters the locking hole 64 connected to the guide groove 66 by its own elastic restoring force. As a result, the first inner conductor 21 is locked by the first dielectric 61 and is prevented from slipping out of the cavity 63 downward. When the locking portion 24 is inserted into the locking hole 64 , the opening between the pair of first connection portions 31 faces the entrance hole 65 of the first dielectric 61 .

[0064] The first dielectric 61 is inserted from below into the inside of the first outer conductor 41. When the first dielectric 61 is inserted to the correct insertion position, the entrance hole 65 is aligned in the front-rear direction with the conductor-side fitting hole 45 of the first outer conductor 41. The exposed shield layer 83 is placed on the outer peripheral surface of the tube portion 44 of the first outer conductor 41 and is crimped by the sleeve 70. As a result, the first outer conductor 41 is electrically connected to the shield layer 83 of the electric wire 80.

[0065] The first outer conductor 41 is inserted into the housing main body 12 of the housing 11 from below. When the first outer conductor 41 is inserted to the correct insertion position, the conductor-side fitting hole 45 of the first outer conductor 41 is aligned with the fitting hole 13 of the housing 11 in the front-rear direction, and the conductor-side fitting groove 46 of the first outer conductor 41 is aligned with the fitting groove 14 of the housing 11 in the front-rear direction. The first locking portion 47 is arranged to face the rear of the fitting hole 13, as shown in Fig. 9. After the first outer conductor 41 is inserted, the second removal prevention engaging portion 75 of the removal prevention member 73 is engaged with the first removal prevention engaging portion 18 of the housing 11.

[0066] The second inner conductor 22 is inserted from the rear into the second dielectric 62. When the second inner conductor 22 is inserted to the correct insertion position, the inner conductor side protrusion 37 and the retaining projection 38 restrict the second inner conductor 22 from moving forward and backward relative to the second dielectric 62. The second dielectric 62 is inserted from the rear into the second outer conductor 42. The second dielectric 62 abuts against the front stopper 53 of the second outer conductor 42, restricting the second outer conductor 42 from moving forward. The second outer conductor 42 is fitted from the front into the fitting hole 13 of the housing 11 with the protrusion 52 oriented to fit into the fitting groove 14 of the housing 11. When the fitting of the second outer conductor 42 progresses further, the second outer conductor 42 is fitted into the conductor side fitting hole 45 of the first outer conductor 41, and the protrusion 52 of the second outer conductor 42 is fitted into the conductor side fitting groove 46 of the first outer conductor 41.

[0067] In the process of fitting the second outer conductor 42 into the conductor-side fitting hole 45 in the accommodating portion 43, the second locking portion 51 is pressed by the first locking portion 47 and is bent and deformed inward. As the fitting progresses further, the first locking portion 47 fits into the locking hole 55 of the second locking portion 51, and the second locking portion 51 returns to its original shape by its own elastic restoring force. As a result, the second locking portion 51 is locked by the first locking portion 47.

[0068] When the second locking portion 51 is engaged with the first locking portion 47, the second outer conductor 42 is connected to the first outer conductor 41. The first outer conductor 41 is configured so as not to slip out of the housing main body 12 into the fitting hole 13. Therefore, even if the second outer conductor 42 connected to the first outer conductor 41 is pulled in a direction so as to slip out of the fitting hole 13, the first outer conductor 41 is caught in the housing main body 12. In other words, when the second locking portion 51 is engaged with the first locking portion 47, the second outer conductor 42 is positioned in the fitting hole 13 so as not to slip out.

[0069] In the process of fitting the second outer conductor 42 into the conductor-side fitting hole 45 in the accommodating portion 43, the second connection portion 36 of the second inner conductor 22 enters the entry hole 65 of the first dielectric 61 and advances while pushing apart the pair of first connection portions 31. When the second inner conductor 22 is properly connected to the first inner conductor 21, the second inner conductor 22 is sandwiched between the pair of first connection portions 31 of the first inner conductor 21, and the tip of the second connection portion 36 of the second inner conductor 22 is disposed inside the concave surface 24B. At this time, the tip of the second connection portion 36 of the second inner conductor 22 does not contact the concave surface 24B.

[0070] Meanwhile, a second outer conductor 42B (described later) other than the second outer conductor 42 can be fitted into the accommodating portion 43 of the first outer conductor 41. That is, the connector 10 is configured to select one of a plurality of types of second outer conductors, either the second outer conductor 42 or the second outer conductor 42B in this embodiment, and connect it to the first outer conductor 41. The second outer conductor 42B has an outer conductor main body 50B, a second locking portion 51B, a convex portion 52B, and a mating connecting portion 54B.

[0071] The outer conductor main body 50B has a tubular shape (more specifically, a cylindrical shape) extending in the front-rear direction. The second locking portion 51B is disposed rearward of the outer conductor main body 50B.

[0072] The second locking portions 51B are provided on both the left and right sides of the second outer conductor 42B. The second locking portions 51B have second locking holes 55B formed therein. The second locking portions 51B have the same shape as the second locking portion 51.

[0073] The protrusion 52B is provided on the outer peripheral surface of the outer conductor body 50B. The protrusion 52B protrudes upward from the upper end of the outer peripheral surface of the outer conductor body 50B. The protrusion 52B has the same shape as the protrusion 52.

[0074] The mating connection portion 54B is cantilevered at the front end of the outer conductor body 50B and has a forward protruding shape. A plurality of mating connection portions 54B (six in this embodiment) are provided at equal intervals in the circumferential direction. The mating connection portions 54B are flexible. The mating connection portions 54B are in elastic contact with the mating outer conductor 93 (see FIG. 5) of the mating connector 90 and are electrically connected. The mating connection portion 54B has a guide surface 56B that guides the mating outer conductor 93 when connecting with the mating outer conductor 93.

[0075] The guide surface 56B is formed at the front end of the mating connection portion 54B. The guide surface 56B is inclined radially inward toward the rear. The guide surface 56B guides the mating outer conductor 93 radially inward of the mating connection portion 54B. The radially inner side of the mating connection portion 54B is electrically connected to the mating outer conductor 93.

[0076] That is, the second locking portion 51 and the second locking portion 51B have the same shape and are shaped to be locked by the first locking portion 47. Therefore, when a selected second outer conductor from the second outer conductor 42 and the second outer conductor 42B is fitted into the accommodation portion 43 of the first outer conductor 41, the second locking portion of the fitted second outer conductor is locked by the first locking portion 47 of the first outer conductor 41, and the second outer conductor is connected to the first outer conductor 41. As a result, the second outer conductor is electrically connected to the first outer conductor 41. On the other hand, the mating connection portion 54 and the mating connection portion 54B have different shapes and are shaped to be connected to mating connection portions having different shapes. Therefore, it is possible to fit a mating connector corresponding to the second outer conductor connected to the first outer conductor 41 into the connector 10.

[0077] (Effect of Connector 10) In the connector 10, the first outer conductor 41 is a component formed into a cylindrical shape by casting or cutting, so that the first outer conductor 41 can be formed so as to prevent gaps from occurring, and as a result, the shielding performance of the first outer conductor 41 can be improved. Here, when the second outer conductor 42 is also a member formed into a cylindrical shape by casting or cutting, both the first outer conductor 41 and the second outer conductor 42 are difficult to deform, so that it is conceivable to couple them to each other by press-fitting. However, when coupling them by press-fitting, in order to ensure the reliability of the electrical connection, the dimensional tolerance between the first outer conductor 41 and the second outer conductor 42 becomes small, and there is a risk that it becomes difficult to manufacture the first outer conductor 41 and the second outer conductor 42. In this respect, according to the connector 10, the second outer conductor 42 is a plate-shaped member and has a second locking portion 51 that is flexible and deformable. Therefore, by engaging the second locking portion 51 with the first locking portion 47 of the first outer conductor 41 by flexible deformation, the dimensional tolerance between the first outer conductor 41 and the second outer conductor 42 can be made large, the first outer conductor 41 and the second outer conductor 42 can be easily manufactured, and the coupling can be realized in a state of high reliability of the electrical connection. Furthermore, by forming the second outer conductor 42 into a plate shape, it can be manufactured inexpensively. Moreover, since a portion of the second outer conductor 42 fits into the accommodating portion 43, the height of the connector 10 in the direction in which the second outer conductor 42 protrudes from the first outer conductor 41 can be reduced.

[0078] Furthermore, the second locking portion 51 of the second outer conductor 42 is disposed in a position to close the through hole 48 when the second outer conductor 42 is fitted into the accommodating portion 43. This makes it possible to suppress deterioration in the shielding performance of the first outer conductor 41 and the second outer conductor 42.

[0079] Furthermore, the second outer conductor 42 has a mating connecting portion 54 that comes into contact with the mating outer conductor of the mating connector 90. This allows the connector 10 to improve the reliability of the electrical connection between the second outer conductor 42 and the mating outer conductor 93. In addition, since the second outer conductor 42 is a plate-shaped member, the mating connecting portion 54 that comes into elastic contact can be easily formed.

[0080] Furthermore, the connector 10 is configured to select one of a plurality of types of second outer conductors 42, 42B to be coupled to the first outer conductor 41, and the plurality of types of second outer conductors 42, 42B have mating connection portions 54, 54B having different shapes from each other. This makes it possible to manufacture a plurality of types of connectors that can be fitted to a plurality of types of mating outer conductors while using the first outer conductor 41 as a common component.

[0081] Furthermore, in the connector 10, the locking portion 24 is locked in the locking hole 64, thereby preventing the first inner conductor 21 from coming off the first dielectric 61. Moreover, the locking portion 24 has a double-supported beam shape with its upper and lower ends supported by the first inner conductor body 23. Therefore, according to this connector 10, it is possible to prevent a decrease in impedance of the first inner conductor 21, compared to a configuration in which the locking portion is a lance.

[0082] Furthermore, the locking portion 24 is curved. Therefore, the connector 10 can reduce the insertion force required when inserting the first inner conductor 21 into the inside of the first dielectric 61.

[0083] Furthermore, the locking hole 64 and the entrance hole 65 of the first dielectric 61 are arranged coaxially with each other via the cavity 63. Therefore, when manufacturing the connector 10, it is possible to perform die cutting at one time using the same linear die that forms the locking hole 64 and the entrance hole 65.

[0084] Furthermore, in a state in which the second inner conductor 22 is properly connected to the first inner conductor 21, the tip of the second connection portion 36 of the second inner conductor 22 is disposed inside the concave surface 24B. Therefore, when the first inner conductor 21 is in a half-inserted state, the tip of the second connection portion 36 abuts against the first inner conductor 21. Therefore, it is easy to determine whether the first inner conductor 21 is in a half-inserted state or not. Particularly in this embodiment, in a state in which the tip of the second inner conductor 22 abuts against the first inner conductor 21, the second lock portion 51 of the second outer conductor 42 is not locked by the first lock portion 47 of the first outer conductor 41. Therefore, it is easier to determine that the first inner conductor 21 is in a half-inserted state based on the lack of locking.

[0085] Furthermore, a guide groove 66 is formed on the inner peripheral surface of the cavity 63, and the guide groove 66 is formed along the vertical direction and communicates with the locking hole 64. Therefore, in the connector 10, the guide groove 66 can guide the locking portion 24 of the first inner conductor 21, which is inserted into the cavity 63, into the locking hole 64.

[0086] Furthermore, the first locking portion 47 of the connector 10 is arranged to face the inner side of the second outer conductor 42 in the fitting direction in the fitting hole 13 when the first outer conductor 41 is arranged at the correct insertion position. The second locking portion 51 is locked to the first locking portion 47. When the second locking portion 51 is locked to the first locking portion 47, the second outer conductor 42 is arranged in the fitting hole 13 so as to be prevented from coming out. In other words, when the first outer conductor 41 is in a partially inserted state, the second locking portion 51 and the first locking portion 47 are misaligned with each other, so that the second locking portion 51 does not lock to the first locking portion 47 and the second outer conductor comes out of the fitting hole. Therefore, the connector 10 can prevent the first outer conductor 41 and the second outer conductor 42 from being locked in the partially inserted state.

[0087] Furthermore, the housing 11 has a fitting groove 14 formed on the inner circumferential surface of the fitting hole 13 along the fitting direction of the second outer conductor 42, and the second outer conductor 42 has a protrusion 52 that fits into the fitting groove 14 during the process of fitting to the first outer conductor 41. Therefore, the connector 10 can position the second outer conductor 42 with respect to the housing 11 in the circumferential direction.

[0088] Furthermore, since the housing 11 is L-shaped and does not have a housing locking portion for locking the first outer conductor 41 and the second outer conductor 42 to the housing 11, the first outer conductor 41 and the second outer conductor 42 easily come off the housing 11 when they are not connected to each other. Therefore, according to this configuration, it is easy to check whether the first outer conductor 41 and the second outer conductor 42 are correctly connected to each other.

[0089] Furthermore, when the second locking portion 51 is engaged with the first locking portion 47, the convex portion 52 of the second outer conductor 42 fits into the conductor side fitting groove 46 of the first outer conductor 41, thereby enabling the second outer conductor 42 to be circumferentially positioned relative to the first outer conductor 41.

[0090] Furthermore, a shield layer 83 of the electric wire 80 is electrically connected to the first outer conductor 41. The second outer conductor 42 is electrically connected to the first outer conductor 41 and is also electrically connected to a mating outer conductor 93 of the mating connector 90. The second outer conductor 42 extends in a direction intersecting (more specifically, perpendicular to) the extending direction of the first outer conductor 41. Therefore, the connector 10 can change the path in a direction intersecting the extending direction of the electric wire 80.

[0091] [Another embodiment of the present disclosure] The embodiments disclosed herein should be considered as illustrative in all respects and not restrictive. (1) In the above embodiment, the connector is L-shaped, but it does not have to be L-shaped. For example, the connector may be I-shaped (straight). (2) In the above embodiment, the second outer conductor is configured to close the through hole of the first outer conductor. However, the second outer conductor may not close the through hole. (3) In the above embodiment, the mating connection portion is configured to come into elastic contact with the mating outer conductor. However, the mating connection portion does not have to come into elastic contact with the mating outer conductor. (4) In the above embodiment, the entrance hole and the locking hole are arranged coaxially. However, the entrance hole and the locking hole may not be arranged coaxially. (5) In the above embodiment, the tip of the second inner conductor is disposed inside the concave surface of the locking portion of the first inner conductor, but the tip may not be disposed inside the concave surface. For example, the tip of the second inner conductor may be disposed outside (in front of) the open end of the concave surface. (6) In the above embodiment, the tip of the second inner conductor is not in contact with the concave surface of the locking portion of the first inner conductor. However, the tip may be in contact with the concave surface of the locking portion of the first inner conductor. (7) In the above embodiment, the guide groove is formed on the inner circumferential surface of the cavity. However, the guide groove may not be formed. (8) In the above embodiment, the electric wire is a coaxial cable. However, the electric wire does not have to be a coaxial cable. For example, the electric wire may be a cable for transmitting differential signals. (9) In the above embodiment, only a portion of the second outer conductor is inserted into the receiving portion of the first outer conductor. However, the entire second outer conductor may be inserted into the receiving portion. [Explanation of symbols]

[0092] 10…Connector 11. Housing 12…Housing body 13...Fitting hole 14...Mating groove 15…Inner hood section 16…Outer hood part 17...Lock arm 18...First retaining locking portion 21...First inner conductor (inner conductor) 22…Second inner conductor 23...First inner conductor body (inner conductor body) 24…Latching part 24A…Convex surface 24B…Concave 25…Stabilizer 26…Barrel section 28…First bottom plate part 29…Second bottom plate part 30…Side plate part 31…First connection part 32...Invitation Department 34…Second inner conductor body 35…Inner conductor mating connection part 36…Second connection part 37…Inner conductor side protrusion 38…Prevention protrusion 41...First outer conductor (outer conductor) 42…Second outer conductor 42B…Second outer conductor 43…Storage section 44...Cylinder part 45...Conductor side fitting hole 46…Conductor side fitting groove 47…First lock section 48…Through hole 49…Sleeve positioning part 50…Outer conductor body 50B…Outer conductor body 51…Second lock section 51B…Second lock section 52…Convex part 52B…Convex part 53…Front stopper 54…Mating connection part 54B…Mating connection part 55...Lock hole 55B…Lock hole 56…Guiding surface 56B…Guiding surface 61...First dielectric (dielectric) 62...Second dielectric 63…Cavity 64...Latching hole 65...Entrance hole 66...Guide groove 67...Stabilizer fitting groove 70…Sleeve 71...first seal member 72...Second seal member 73...Prevention member 74…Insertion hole 75…Second retaining locking part 80...Electric wire 81…Inner conductor 82...Insulator 83…Shield layer 84…Sheath 90…Mating connector 91…Matching housing 92…Mating inner conductor 93…Mating outer conductor 94…Matching part

Claims

1. An inner conductor; an outer conductor surrounding the inner conductor; a dielectric disposed between the inner conductor and the outer conductor; Equipped with the dielectric body has a cavity extending in a predetermined direction and a locking hole formed in an inner peripheral surface of the cavity, the inner conductor has an inner conductor body disposed in the cavity, and a locking portion protruding from the inner conductor body and inserted into the locking hole to be locked therein; the locking portion extends in the predetermined direction, and has a double-supported beam shape with upper and lower ends supported by the inner conductor body, a second inner conductor electrically connected to the inner conductor; An access hole is formed in an inner peripheral surface of the cavity at a position opposite to the locking hole, the second inner conductor is disposed in the entrance hole, The engagement hole and the entrance hole are arranged coaxially with each other through the cavity. connector.

2. the locking portion has a convex surface protruding from the inner conductor body and a concave surface formed on the rear side of the convex surface, When the second inner conductor is properly connected to the inner conductor, the tip of the second inner conductor is disposed inside the concave surface. The connector of claim 1 .

3. The engaging portion is curved. The connector according to claim 1 or 2.

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