Shielded connector

Abstract

A shielded connector capable of maintaining an electrical connection between a first outer conductor and a second outer conductor is provided. The first outer conductor (13) and the second outer conductor (14) are assembled together. At least one of the first outer conductor (13) and the second outer conductor (14) has a protrusion (47, 48, 49) protruding along the assembly direction of the first outer conductor (13) and the second outer conductor (14), and the other of the first outer conductor (13) and the second outer conductor (14) has a groove (51, 52, 53) that engages the protrusion (47, 48, 49) in the assembled state of the first outer conductor (13) and the second outer conductor (14). Contact ribs (64-69) extending along the assembly direction and contacting the other are formed on at least one of the outer surface of the protrusion (47, 48, 49) and the inner surface of the groove (51, 52, 53).

Description

Technical Field

[0001] This invention relates to shielded connectors. Background Technology

[0002] Shielded connectors typically consist of an inner conductor, an outer conductor surrounding the inner conductor, and a dielectric material positioned between the inner and outer conductors. The outer conductor prevents leakage of electromagnetic noise from the inner conductor and the intrusion of electromagnetic noise into the inner conductor. The dielectric material is made of synthetic resin and maintains insulation between the inner and outer conductors.

[0003] It should be noted that patent documents 1 and 2 disclose a structure that suppresses the wobbling of each component by means of ribs or the like when assembling two components together.

[0004] Prior technology literature

[0005] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2015-11947

[0007] [Patent Document 2] Japanese Patent Application Publication No. 7-230833

[0008] [Summary of the Invention]

[0009] [The problem the invention aims to solve]

[0010] However, in order to improve shielding performance, the outer conductor needs to be configured to surround the inner conductor as much as possible. For example, the outer conductor is sometimes divided into an upper first outer conductor and a lower second outer conductor, separated by the inner conductor.

[0011] When the first outer conductor is assembled onto the second outer conductor from above, a structure can be adopted in which the first and second outer conductors are electrically connected via ribs formed on the lower surface of the first outer conductor and in contact with the upper surface of the second outer conductor. However, when a vertical vibration force is applied to the first and second outer conductors, the ribs may separate from the upper surface of the second outer conductor, making it difficult to maintain the electrical connection between the first and second outer conductors. Summary of the Invention

[0012] Therefore, the purpose of this disclosure is to provide a shielded connector capable of maintaining an electrical connection between a first outer conductor and a second outer conductor.

[0013] [Solutions for solving the problem]

[0014] The shielded connector disclosed herein comprises: an inner conductor; an outer conductor surrounding the inner conductor; and a dielectric disposed between the inner conductor and the outer conductor. The outer conductor has a first outer conductor and a second outer conductor assembled to each other. At least one of the first outer conductor and the second outer conductor has a protrusion that protrudes along an assembly direction of the first outer conductor and the second outer conductor. The other of the first outer conductor and the second outer conductor has a groove that engages the protrusion when the first outer conductor and the second outer conductor are assembled. A contact rib is formed on at least one of the outer surface of the protrusion and the inner surface of the groove. The contact rib extends along the assembly direction and contacts the other of the outer surface of the protrusion and the inner surface of the groove.

[0015] [Invention Effects]

[0016] According to this disclosure, a shielded connector capable of maintaining an electrical connection between a first outer conductor and a second outer conductor can be provided. Attached Figure Description

[0017] Figure 1 This is an exploded perspective view of the shielded connector according to Embodiment 1 of this disclosure.

[0018] Figure 2 It is a cross-sectional view showing the mating state of the shielded connector and the connector on the other side.

[0019] Figure 3 It is a partially enlarged cross-sectional view showing the assembled state of the first outer conductor and the second outer conductor.

[0020] Figure 4 It is a partially enlarged bottom view showing the bottom surface and surrounding structure of the second outer conductor.

[0021] Figure 5 This is a partially enlarged sectional view showing the shielded connector being horizontally cut at the position corresponding to the bottom.

[0022] Figure 6 This is a perspective view illustrating the assembly process of the first outer conductor relative to the housing.

[0023] Figure 7 This is a partially enlarged cross-sectional view showing the contact state between the first outer conductor side abutment portion and the first housing side abutment portion.

[0024] Figure 8 This is a perspective view used to illustrate the assembly process of the second outer conductor relative to the first outer conductor.

[0025] Figure 9 It is a partially enlarged sectional view showing the contact state between the concave contact surface and the convex contact surface.

[0026] Figure 10 This is a partially enlarged cross-sectional view showing the contact state between the second outer conductor side abutment portion and the second housing side abutment portion.

[0027] Figure 11 It is a partially enlarged sectional view showing the fitting state of the pressed-in concave part and the pressed-in convex part.

[0028] Figure 12 This is a rear view of the shielded connector mounted on the circuit board.

[0029] Figure 13 It is a magnified rear view showing the recessed area and its surrounding structure.

[0030] Figure 14 This is the rear view of the casing.

[0031] Figure 15 This is a partially enlarged perspective view showing the first shell side abutment portion and its surrounding structure.

[0032] Figure 16 This is a bottom view of the casing.

[0033] Figure 17 This is the front view of the casing.

[0034] Figure 18 This is a three-dimensional diagram of the first outer conductor.

[0035] Figure 19 This is the front view of the first outer conductor.

[0036] Figure 20 This is a rear view of the first outer conductor.

[0037] Figure 21 This is a three-dimensional diagram of the second outer conductor.

[0038] Figure 22 From and Figure 21 Three-dimensional images obtained by observing the second outer conductor from different directions.

[0039] Figure 23 This is the front view of the second outer conductor.

[0040] Figure 24 This is a side view of the second outer conductor.

[0041] Figure 25 This is a top view of the second outer conductor.

[0042] [Label Explanation]

[0043] 10…Shielded Connector

[0044] 11…Long inner conductor (inner conductor)

[0045] 12…Short-sized inner conductor (inner conductor)

[0046] 13…First outer conductor (outer conductor)

[0047] 14…Second outer conductor (outer conductor)

[0048] 15…Outer conductor tube (outer conductor)

[0049] 16… Long-length dielectrics (dielectrics)

[0050] 17… Short-sized dielectrics (dielectrics)

[0051] 18…shell

[0052] 19… Shell Body

[0053] 21…Shield

[0054] 22…Insert Hole

[0055] 23…fitting recess

[0056] 24…Inner rib of the concave part

[0057] 25…groove

[0058] 26…Die recess

[0059] 27…fitting hole

[0060] 28…First carding protrusion

[0061] 29…First shell side abutment portion (shell side abutment portion)

[0062] 31…Side of the shell

[0063] 32…Second Cadence protrusion

[0064] 33…Second shell side abutment portion (shell side abutment portion)

[0065] 34…fitting groove

[0066] 35…Separation section

[0067] 36… Housing locking part

[0068] 37…upper part

[0069] 38…side

[0070] 39…Matching bearing part

[0071] 41…Assembly Department

[0072] 42…Cylinder section

[0073] 43…First connecting protrusion

[0074] 44…First outer conductor side contact portion (outer conductor side contact portion)

[0075] 45… Press into the recess

[0076] 46…through hole

[0077] 47, 48… Protrusions (protrusions) of the first outer conductor

[0078] 49…Protrusion of the second outer conductor (protrusion)

[0079] 51… The groove of the first outer conductor (groove)

[0080] 52, 53… The groove of the second outer conductor (groove)

[0081] 54…Legs

[0082] 55… Displacement limiting surface

[0083] 56…concave

[0084] 57… Gently sloping section

[0085] 58…Contact surface of the concave part (contact face)

[0086] 59…bottom

[0087] 61… Back (Matching Part)

[0088] 62…Standing part (fitting part)

[0089] 63…Connecting part (Matching part)

[0090] 64, 65, 66, 67, 68, 69… Contact Ribs

[0091] 71… Transverse Rib

[0092] 72…convex part

[0093] 73… Inclined section

[0094] 74…Contact surface of the protrusion (contact face)

[0095] 75… Press into the protrusion

[0096] 76…Second connecting protrusion

[0097] 77…Second outer conductor side contact portion (outer conductor side contact portion)

[0098] 78… Press the ribs

[0099] 79…Incision area

[0100] 81… Front opening (opening)

[0101] 82…First opening (opening)

[0102] 83…Second opening (opening)

[0103] 84…Front Installation Department (Installation Department)

[0104] 85…Side mounting section (mounting section)

[0105] 86… Shared Installation Department (Installation Department)

[0106] 87…Supply Installation Department (Installation Department)

[0107] 88…First escape recess (retreat recess)

[0108] 89...Second escape recess (retreat recess)

[0109] 91…recessed area

[0110] 92…Bottom

[0111] 93…back

[0112] 94…Connecting Main Body

[0113] 95…Side panel

[0114] 96… Press-in knife

[0115] 101...Tubular part

[0116] 102… Introduction

[0117] 103…Guide slot

[0118] 104… Horizontal section

[0119] 105…Extension Section

[0120] 106… Connecting part on the opposite side

[0121] 107…Substrate connection part

[0122] 124…inner rib

[0123] 200… Circuit board

[0124] 201… Fixing hole

[0125] 202…Connecting hole

[0126] 250…surface wiring

[0127] 300… Opposite side connector

[0128] 301…Space Department

[0129] 303… Opposite side inner conductor Detailed Implementation

[0130] [Description of embodiments of this disclosure]

[0131] First, let's illustrate the implementation forms of this disclosure.

[0132] In the shielded connector disclosed herein,

[0133] (1) The shielded connector comprises: an inner conductor; an outer conductor surrounding the inner conductor; and a dielectric disposed between the inner conductor and the outer conductor, the outer conductor having a first outer conductor and a second outer conductor assembled together, at least one of the first outer conductor and the second outer conductor having a protrusion that protrudes along the assembly direction of the first outer conductor and the second outer conductor, the other of the first outer conductor and the second outer conductor having a groove that engages the protrusion in the assembled state of the first outer conductor and the second outer conductor, and at least one of the outer surface of the protrusion and the inner surface of the groove having a contact rib formed thereon, the contact rib extending along the assembly direction and contacting the other of the outer surface of the protrusion and the inner surface of the groove.

[0134] The contact rib contacts the other party along the assembly direction, thus maintaining the contact state between the contact rib and the other party even when a vibration force in the assembly direction is applied to the first outer conductor and the second outer conductor. In particular, in the above structure, the contact rib is formed on at least one of the outer surface of the protrusion and the inner surface of the groove, and the protrusion is fitted into the groove, so the contact rib can properly contact the other party.

[0135] (2) Preferably, the protrusion and the groove are included in both the first outer conductor and the second outer conductor, and the contact rib is formed on both the outer surface of the protrusion and the inner surface of the groove.

[0136] According to the above structure, in the assembled state of the first and second outer conductors, the protrusions of each conductor are fitted into the grooves on the other side, and the contact ribs formed on the outer surface of the protrusions and the inner surface of the grooves are in contact with the other side. Therefore, when a vibration force is applied to the first and second outer conductors, it is possible to reliably achieve a state in which either contact rib is in contact with the other.

[0137] (3) The inner conductor may be arranged in a width direction within the first outer conductor, and the first outer conductor has the protrusion at a position that separates the inner conductors that are adjacent in the width direction.

[0138] According to the above structure, the protrusion can both achieve the function of electrical connection via contact ribs and suppress crosstalk between adjacent inner conductors along the width direction.

[0139] [Details of the embodiments of this disclosure]

[0140] Hereinafter, specific examples of this disclosure are described with reference to the accompanying drawings. It should be noted that the present invention is not limited to these examples, but is disclosed by the claims and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0141] <Implementation Method 1>

[0142] The shielding connector 10 in Embodiment 1 is a shielding connector for a substrate provided on the circuit board 200. For example... Figure 1 and Figure 2 As shown, the shielded connector 10 includes: inner conductors 11 and 12; outer conductors 13, 14 and 15 surrounding the outer periphery of the inner conductors 11 and 12; dielectrics 16 and 17 disposed between the inner conductors 11 and 12 and the outer conductors 13, 14 and 15; and a housing 18 connecting the outer conductors 13, 14 and 15.

[0143] The outer conductors 13, 14, and 15, and the inner conductors 11 and 12 are conductive components such as metals. The dielectrics 16 and 17, and the housing 18 are insulating components such as synthetic resin. The housing 18 is fitted into the counterpart connector 300. It should be noted that, in the following description, in the front-back direction, the side of the housing 18 opposite to the counterpart connector 300 when fitted is designated as the front side. In the vertical direction, the side with the shielded connector 10 provided relative to the circuit board 200 is designated as the upper side. Figure 1 and Figure 2 The upper side becomes the upper side. Figure 1 and Figure 2 In the diagram, "U" indicates the top side, and "F" indicates the front side. Furthermore, in the following explanation, the left-right direction intersects with the front-back and up-down directions, and is synonymous with the width direction.

[0144] (case)

[0145] like Figure 1 As shown, the housing 18 has an overall rectangular shape and includes a housing body 19 and a protective cover 21 protruding forward from the housing body 19. Figure 14 and Figure 17 As shown, the housing body 19 has a plurality of through holes in the front-to-back direction, which are four insertion holes 22 in this embodiment 1. Each insertion hole 22 has a circular cross-section and is arranged in pairs, one above the other, along the width direction.

[0146] like Figure 14As shown, a recessed portion 23 is formed on the rear surface of the housing body 19, retaining the central portion of the housing body 19. Multiple recessed inner ribs 24 are formed on the inner circumferential surface of the recessed portion 23. Multiple inner ribs 124 are formed on the inner circumferential surface of each insertion hole 22. (See diagram) Figure 6 As shown, the inner ribs 24 of each recess and the inner ribs 124 of each hole extend in the front-rear direction in the inner circumferential surface of the fitting recess 23 and the inner circumferential surface of each insertion hole 22, respectively. Figure 2 As shown, the outer conductor tube 15 (described later) is inserted into the insertion hole 22 of the housing body 19. Although not shown, each cylindrical portion 42 of the first outer conductor 13 (described later) is inserted into the fitting recess 23 of the housing body 19. Figure 6 Each recessed inner rib 24 and each hole inner rib 124 are in contact with the outer peripheral surface of each cylindrical part 42 and the outer peripheral surface of the outer conductor tube 15, respectively.

[0147] like Figure 14 and Figure 17 As shown, a mold-removing recess 26 is formed at the upper end of the housing body 19. The mold-removing recess 26 is formed by pulling out the mold used to form the housing locking part 36, which will be described later. Furthermore, a pair of fitting holes 27 are formed on the left and right sides of the mold-removing recess 26 at the upper end of the housing body 19. Each fitting hole 27 extends through the upper end of the housing body 19 in the front-rear direction and communicates with the fitting recess 23 and the inner part of the protective cover 21.

[0148] like Figure 15 As shown, a pair of grooves 25 corresponding to the rear ends of each fitting hole 27 are recessed at the upper end of the inner circumferential surface of the fitting recess 23. A pair of first locking protrusions 28 extending in the width direction, traversing each groove 25, are formed at the rear end of the housing body 19. Each first locking protrusion 28 faces the rear surface of the housing body 19 and protrudes towards the fitting recess 23. Figure 7 As shown, the front surface (facing forward) of each first locking protrusion 28 becomes the first housing side abutment 29 along the width direction.

[0149] like Figure 2 and Figure 7 As shown, the first connecting protrusion 43 of the first outer conductor 13, described later, is pressed into the groove 25 of the housing body 19 in a recessed manner, and the first outer conductor side abutment 44, described later, contacts the first housing side abutment 29.

[0150] like Figure 14 As shown, the housing body 19 has a pair of housing sides 31 that separate the left and right sides of the fitting recess 23. A pair of second locking protrusions 32 are formed on the inner surface (opposite surfaces) of the lower end side of each housing side 31, protruding toward the fitting recess 23.

[0151] like Figure 16As shown, the front surface (facing forward) of the second locking protrusion 32 becomes a second housing-side abutment portion 33 along the width direction. In the housing body 19, a pair of fitting grooves 34 are formed between the second housing-side abutment portion 33 of each second locking protrusion 32 and the interior of the fitting recess 23 opposite to each second locking protrusion 32 at the front. Each fitting groove 34 opens inward in both the vertical and horizontal directions and the width direction between the interior of each second locking protrusion 32 and the interior of the fitting recess 23.

[0152] like Figure 10 As shown, the second connecting protrusion 76 of the second outer conductor 14, described later, is inserted into the fitting groove 34 of the housing body 19 from below, and the pressing rib 78 of the second outer conductor side abutment 77, described later, contacts the second housing side abutment 33 in a pressing state.

[0153] The protective cover 21 is in the shape of a square tube. For example... Figure 2 As shown, the opposite-side connector 300 is inserted and fitted into the protective cover 21. Figure 17 As shown, a pair of partitions 35 are formed on the cover 21, protruding forward from the front surface of the housing body 19. Each partition 35 is inserted into a space 301 formed in the connector 300 on the opposite side (see reference). Figure 1 A housing locking part 36 is formed on the upper wall of the protective cover 21 to lock the opposite-side connector 300. The housing locking part 36 locks the opposite-side connector 300, and the housing 18 and the opposite-side connector 300 are kept in an engaged state.

[0154] (Outer conductor)

[0155] like Figure 1 and Figure 2 As shown, the outer conductor is composed of a first outer conductor 13, a second outer conductor 14, and multiple outer conductor tubes 15. The first outer conductor 13 and the second outer conductor 14 are die-cast conductive rigid bodies made of zinc alloy, aluminum alloy, or other die-cast materials, and are formed from the same material. The first outer conductor 13 and the second outer conductor 14 are assembled together to form a shell. The outer conductor tubes 15 are stamped bodies formed by bending metal sheets made of materials such as brass, which have a higher hardness than the first outer conductor 13 and the second outer conductor 14.

[0156] like Figures 18-20 As shown, the first outer conductor 13 has an upper portion 37 that is rectangular in shape when viewed from above, and a pair of side portions 38 that protrude downwards from the left and right ends of the upper portion 37. Furthermore, as... Figure 8 and Figure 20 As shown, the first outer conductor 13 has a mating receiving portion 39 that opens downward and backward between the upper portion 37 and each side portion 38.

[0157] In addition, such as Figure 20As shown, the first outer conductor 13 has a mounting portion 41 that is thickened toward the fitting receiving portion 39 and is connected to the upper portion 37 and each side portion 38 respectively. Figure 18 and Figure 19 As shown, a plurality of cylindrical portions 42 are formed protruding from the front surface of the first outer conductor 13. Each cylindrical portion 42 is arranged on the upper and lower sides and along the width direction. Each cylindrical portion 42 is connected to each other in the upper, lower, left and right directions, and is shaped to fit into the fitting recess 23.

[0158] The first outer conductor 13 has a pair of first connecting protrusions 43 projecting upward from each of the upper cylindrical portions 42. Each first connecting protrusion 43 extends along the full length of each upper cylindrical portion 42 and is integrally connected to the front surface of the first outer conductor 13. The upper end of each first connecting protrusion 43 projects upward from the upper portion 37. For example... Figure 20 As shown, the rear surface (facing rearward) of the upper end side of each first connecting protrusion 43 becomes the first outer conductor side abutment 44 along the vertical and width directions.

[0159] like Figure 18 and Figure 19 As shown, a press-in recess 45 is formed at the lower end of the front surface of the first outer conductor 13. The press-in recess 45 is disposed between the lower cylindrical portions 42. Specifically, the press-in recess 45 is divided by the lower cylindrical portions 42 and the connecting portion that connects the lower cylindrical portions 42 along the width direction, and opens forward and downward. The rear of the press-in recess 45 is closed by the front surface of the first outer conductor 13. The press-in recess 45 has a dovetail groove shape with its width gradually increasing from the lower end of the opening side towards the upper end inward. Figure 11 As shown, the press-in protrusion 75 of the second outer conductor 14, described later, is pressed into the press-in recess 45.

[0160] like Figure 20 As shown, the assembly part 41 has a plurality of through holes 46 extending in the front-to-back direction. Each through hole 46 has a circular cross-section, as shown in the figure. Figure 18 and Figure 19 As shown, the front end portion is formed inside each cylindrical portion 42. With the first outer conductor 13 connected to the housing 18, each cylindrical portion 42 is embedded in the fitting recess 23 of the housing 18, as shown... Figure 2 As shown, each through hole 46 of the assembly part 41 is connected to each insertion hole 22 of the housing body 19 in the front-back direction.

[0161] like Figure 8 and Figure 20 As shown, a protrusion 47 protruding toward the fitting receiving portion 39 is formed at the center of the width direction of the first outer conductor 13. Figure 20As shown, the protrusion 47 is plate-shaped along the vertical direction in the mounting portion 41 and is disposed between adjacent through holes 46 along the width direction. The lower end of the protrusion 47, together with the lower surface of the mounting portion 41, is stepped. Each through hole 46 on the upper side of the mounting portion 41 corresponds to the stepped shape and is formed to be longer rearward than each through hole 46 on the lower side (see reference). Figure 2 ).

[0162] like Figure 20 As shown, a plurality of grooves 51 are formed in the first outer conductor 13. Each groove 51 has a structure in which the mounting portion 41 is cut out in such a way that the lower part (including the stepped portion) of the peripheral wall surrounding each through hole 46 is cut out, and a structure in which the inner surface of the rear end portion of the upper portion 37 is recessed. Each groove 51 is disposed in each of the through holes 46 and opens downward and rearward to the side serving as the fitting receiving portion 39.

[0163] like Figure 8 As shown, four legs 54 protrude downwards at the front and rear ends of the lower portion 38 of each side 38. Each leg 54 is arranged corresponding to the four corner portions of the lower end of the first outer conductor 13. Figure 2 , Figure 3 and Figure 12 As shown, each leg 54 is positioned and inserted into the fixing hole 201 of the circuit board 200. Furthermore, as... Figure 8 As shown, rib-shaped protrusions 48 are formed at the lower front and rear middle parts of each side portion 38.

[0164] like Figure 19 As shown, the upper front surface of each front leg 54 forms a displacement limiting surface 55 along the width direction. Figure 4 As shown, the displacement limiting surface 55 is opposite to the second locking protrusion 32 of the housing body 19 in the elastic displacement direction of the second locking protrusion 32, and is able to contact the second housing side abutment portion 33.

[0165] like Figure 20 As shown, a pair of recesses 56 are formed at the lower rear end of the inner surface of each side portion 38 (which is also the inner surface of the fitting receiving portion 39). Each recess 56 opens inward in the width direction (on the side of each side portion 38 opposite to each other) and rearward. Figure 6 and Figure 8 As shown, the recess 56 is located on the upper end side of the rear leg 54. Figure 9 As shown, the upper portion of the inner surface of each recess 56 is provided as a gently inclined portion 57 that slopes outward in the width direction relative to the vertical direction. The lower portion of the inner surface of each recess 56 is provided as a contact surface 58 that slopes outward in the width direction relative to the vertical direction at an angle larger than the gently inclined portion 57. The contact surface 74 of each protrusion 72 of the second outer conductor 14, described later, contacts the contact surface 58 of each recess 56 in a recessed manner.

[0166] like Figure 8 As shown, the second outer conductor 14 is assembled to the first outer conductor 13 from below. Figure 21 As shown, the second outer conductor 14 has a rectangular bottom 59 when viewed from below, a back 61 rising from the rear end of the bottom 59, an upright portion 62 rising from a position near the rear end of the bottom 59, and a connecting portion 63 connecting the back 61 and the upright portion 62 at the center of the bottom 59 in the width direction. The back 61, the upright portion 62, and the connecting portion 63 constitute a fitting portion that can fit into the fitting receiving portion 39 of the first outer conductor 13.

[0167] The back 61 and the raised portion 62 form a rectangular longitudinal wall when viewed from the rear. For example... Figure 12 As shown, the back surface 61 blocks the rear surface of the first outer conductor 13. (As indicated...) Figure 24 As shown, the protruding dimension of the upright portion 62 is smaller than that of the back portion 61. The height difference between the upper end face of the upright portion 62 and the upper end face of the back portion 61 corresponds to the height difference of the stepped shape of the assembly portion 41. The upper end face of the upright portion 62 is connected to the upper end face of the connecting portion 63 at the same height.

[0168] like Figure 21 , Figure 23 and Figure 25 As shown, a groove 52 is formed in the center of the second outer conductor 14 in the width direction. The groove 52 is continuously recessed in a stepped manner on the upper and front surfaces of the back 61, the connecting portion 63, the upright portion 62, and the bottom 59. As a result, the bottom surface (inside) of the groove 52 on the back 61 is positioned higher than the bottom surface of the groove 52 on the connecting portion 63 and the upright portion 62. Moreover, the bottom surface of the groove 52 on the connecting portion 63 and the upright portion 62 is positioned higher than the bottom surface of the groove 52 on the bottom 59.

[0169] like Figure 21 and Figure 25 As shown, the groove 52 has multiple contact ribs 64 extending vertically on its two opposing sides in the width direction. Each contact rib 64 has an arc-shaped cross-section. Multiple contact ribs 64 are formed at intervals along the front-rear direction on both sides of the groove 52 corresponding to the back 61, connecting portion 63, upright portion 62, and bottom 59, respectively. Grooves 53 are also formed at the front and rear center portions of both sides of the bottom 59. Figure 25 As shown, the groove 53 has contact ribs 65 extending in the vertical direction on its front and rear surfaces that are opposite each other in the front-rear direction.

[0170] like Figure 21 , Figure 23 and Figure 25As shown, on the upper surfaces of the back 61, the upright portion 62, and the bottom 59, a pair of protrusions 49 are formed on each of the left and right sides of the groove portion 52. Each protrusion 49 is columnar and arranged parallel to the groove portion 52. Contact ribs 66 extending in the vertical direction are also formed on both sides of each protrusion 49. Transverse ribs 71 extending in the horizontal direction, intersecting the contact ribs 66 of each protrusion 49, are also formed on the upper surfaces of the back 61, the upright portion 62, and the bottom 59.

[0171] In the assembled state of the first outer conductor 13 and the second outer conductor 14, such as Figure 5 As shown, the protrusions 47 and 48 of the first outer conductor 13 are embedded in the grooves 52 and 53 of the second outer conductor 14. Furthermore, as... Figure 12 As shown in part, the protrusions 49 of the second outer conductor 14 are embedded in the grooves 51 of the first outer conductor 13. Figure 5 As shown in part, the contact ribs 64, 65, and 66 of the second outer conductor 14 contact the two sides (outer surfaces) of the protrusions 47 and 48 of the first outer conductor 13 and the two sides (inner surfaces) of the grooves 51 of the first outer conductor 13. The transverse ribs 71 of the second outer conductor 14 contact the lower surface (facing downwards) of the first outer conductor 13. Furthermore, as... Figures 21-23 As shown, contact ribs 67 extending longitudinally in the vertical direction are also formed on both sides of the back 61 and the upright portion 62. These contact ribs 67 contact the inner surfaces of each side portion 38 of the first outer conductor 13.

[0172] like Figure 22 and Figure 25 As shown, the second outer conductor 14 has a pair of protrusions 72 at the lower rear ends of both sides. Each protrusion 72 has an arc-shaped cross-section extending in the front-rear direction on both sides of the bottom 59. The front end of each protrusion 72 is integrally connected to the lower end of each contact rib 67 formed on both sides of the back 61. Figure 9 As shown, the upper portion of the outer surface of the protrusion 72 is provided as an inclined portion 73, which is inclined at a larger angle relative to the vertical direction than the gently inclined portion 57 of the recess 56. The lower portion of the outer surface of the protrusion 72 is provided as a contact surface 74, which is inclined at a larger angle relative to the vertical direction than the inclined portion 73. Moreover, the angle of inclination of the contact surface 74 of the protrusion 72 relative to the vertical direction is smaller than that of the contact surface 58 of the recess 56. In the assembled state of the first outer conductor 13 and the second outer conductor 14, the protrusion 72 is embedded in the lower portion of the recess 56, and the contact surface 74 is recessed and in contact with the contact surface 58 of the recess 56.

[0173] like Figures 21-25As shown, a press-in protrusion 75 is formed protruding from the center of the upper surface of the front end of the bottom 59 in the width direction. The press-in protrusion 75 is columnar and has a certain cross-sectional shape along the vertical direction except for the upper end. The press-in protrusion 75 is disposed in front of the groove 52 of the bottom 59. A pair of contact ribs 68 extending in the vertical direction are also formed on both sides of the press-in protrusion 75. Figure 11 As shown, each contact rib 68 is in contact with the inner surface of the pressed-in recess 45.

[0174] like Figure 25 As shown, the second outer conductor 14 has a pair of second connecting protrusions 76 protruding outward in the width direction from the front ends of both sides of the bottom 59. The rear surface (the rearward-facing surface) of each second connecting protrusion 76 forms a second outer conductor side abutment 77 along the width direction. A pressing rib 78 with an arc-shaped cross-section extending in the vertical direction is formed on each second outer conductor side abutment 77. Figure 10 As shown, the pressing rib 78 of the second outer conductor side abutment portion 77 contacts the second housing side abutment portion 33 of the second locking protrusion 32 in a pressed state.

[0175] like Figure 25 As shown, cutouts 79 are formed at the front side of the bottom 59, opposite to the contact portions 77 of each second outer conductor, and at the left and right corners of the rear end of the bottom 59. The upper ends of each leg 54 are fitted into each cutout 79. Contact ribs 69 that contact the upper ends of each leg 54 are also formed in each cutout 79.

[0176] like Figure 21 and Figure 25 As shown, a plurality of openings 81, 82, and 83 are formed in the second outer conductor 14. Each opening 81, 82, and 83 has a rectangular cross-sectional shape and is arranged in the second outer conductor 14 at respective positions on the left and right sides and front and rear of the slot 52. The front openings 81 are located in front of the raised portion 62 and behind the protrusion 49 of the bottom 59, penetrating the bottom 59 toward the bottom surface 92 (the downward-facing surface, see reference). Figure 8 The openings 82 and 83 on the rear side are divided by the back 61, the upright part 62 and the connecting part 63, and similarly extend through the bottom 59 to the bottom surface 92. It should be noted that, in the following description, as needed, adjacent rear openings in the width direction may sometimes be referred to as the first opening 82 and the second opening 83.

[0177] like Figure 2As shown, dielectrics 16 and 17 are fitted into each of the openings 81, 82, and 83. Inner conductors 11 and 12, fitted into the dielectrics 16 and 17, allow the substrate connection portion 107 (described later) to protrude downwards from the bottom surface 92 of the bottom 59 through the openings 81, 82, and 83. Each substrate connection portion 107 protruding from the first opening 82 and the second opening 83 is connected to a surface wiring 250 (see reference) formed on the surface of the circuit board 200. Figure 4 The conductive portion of the surface layer wiring 250 (although not shown, it is the portion formed at the front end of the surface layer wiring 250). The surface layer wiring 250 is formed on the surface of the circuit board 200, extending rearward from the pads that solder the board connection portion 107.

[0178] like Figure 4 As shown, a plurality of mounting portions 84 to 87 are formed on the bottom surface 92 of the bottom 59 in a manner that surrounds the periphery of each opening 81, 82, and 83. Each mounting portion 84 to 87 protrudes slightly downward from the bottom surface 92 of the bottom 59. The lower end surface of each mounting portion 84 to 87 is flat and is soldered to a grounding conductive portion of the circuit board 200.

[0179] Specifically, each mounting portion has a front mounting portion 84 extending in a left-right direction on the front side of each front opening 81, a side mounting portion 85 extending in a front-rear direction on the left and right sides of each opening 81, 82, 83, and a common mounting portion 86 extending in a left-right direction between the front opening 81 and the rear openings 82, 83. Furthermore, supplementary mounting portions 87 are also formed at positions corresponding to the rear sides of the first opening 82 and the second opening 83, serving as mounting portions.

[0180] Recessed recesses 88 and 89 are provided at the rear end of the bottom surface 92 of the bottom 59. The recesses are composed of a first recess 88 and a second recess 89. The first recess 88 extends rearward from the rear edge of the first opening 82 (the rearward opening edge), and the second recess 89 extends rearward from the rear edge of the second opening 83. Figure 12 and Figure 22 As shown, the rear ends of the recesses 88 and 89 open towards the back surface 93 of the second outer conductor 14, which intersects with the bottom surface 92. The recesses 88 and 89 are rectangular in cross-section, communicating with the openings 82 and 83 at the front, opening rearward and downward, while being closed at the top by the back surface 61. Figure 13 As shown, when viewed from the rear of the shielded connector 10, the substrate connection portion 107 of the inner conductor 11 and the lower end of the dielectric 16 are visible through the recesses 88 and 89. Figure 13 The recessed part 89 in the middle can be visually identified.

[0181] Recessed recesses 88 and 89 are disposed above the surface wiring 250 of the circuit board 200 (see reference). Figure 4 The second outer conductor 14 avoids electrical connection with the surface wiring 250 by means of recesses 88 and 89.

[0182] The supplementary mounting portion 87 is formed between the first recess 88 and the second recess 89, corresponding to each recess 88, 89. Specifically, the supplementary mounting portion 87 is formed along the inner side edge of the side edge located at the center side in the width direction of the bottom 59 of the first recess 88 and the second recess 89 in the front-rear direction.

[0183] A recessed portion 91 is provided at the center of the back surface 93 of the second outer conductor 14 in the width direction. For example... Figure 22 As shown, the recess 91 is formed on the back surface 93 of the second outer conductor 14, extending vertically from the bottom 59 to the back surface 61. The recess 91 opens on the bottom surface 92 and the back surface 93 of the second outer conductor 14, opening rearward and downward. Figure 3 As shown, the inner surface of the recess 91 is arranged parallel to the groove 52 at a position aligned with the upper surface of the connecting portion 63, the upper surface of the raised portion 62, and the front surface of the raised portion 62. The wall thickness of the connecting portion 63 decreases at the location corresponding to the recess 91. Figure 4 As shown, the supplementary mounting part 87 is disposed in the bottom surface 92 of the bottom 59, clamping between the recessed parts 88 and 89 and the recessed part 91 in the width direction.

[0184] The outer conductor tube 15 is integrally formed by bending a conductive metal plate, and has a thinner wall compared to the first outer conductor 13 and the second outer conductor 14, respectively. Figure 1 As shown, the outer conductor tube 15 has a cylindrical connecting body 94 extending in the front-rear direction and a pair of side plates 95 protruding downward from the left and right sides of the rear end portion of the connecting body 94.

[0185] like Figure 2 As shown, the outer conductor tube 15 is inserted into the through hole 46 of the first outer conductor 13 from the rear. Multiple outer conductor tubes 15 are provided corresponding to each through hole 46; in this embodiment 1, four are provided, such as... Figure 1 As shown, they are all formed into the same shape. Figure 1 As shown, a pair of press-in blades 96 are formed on the outer peripheral surface of the connecting body 94. The outer conductor tube 15 contacts and stops at the rear end opening edge of the through hole 46 of the assembly part 41 through each side plate portion 95, and each press-in blade 96 is locked in the inner surface of the through hole 46, so that the first outer conductor 13 is held in an anti-disengagement state.

[0186] (Dielectric)

[0187] like Figure 1 As shown, dielectrics 16 and 17 have a cylindrical portion 101 extending in the front-to-back direction and a lead-out portion 102 protruding downward from the rear end of the cylindrical portion 101, forming an L-shape when viewed from the side. The horizontal portions 104 of the inner conductors 11 and 12, described later, are inserted into the cylindrical portion 101. A guide groove 103 extending in the vertical direction is formed on the rear surface of the lead-out portion 102. The guide groove 103 opens rearward. Figure 2 As shown, the extension portion 105 of the inner conductors 11 and 12, described later, fits into the guide groove 103 from the rear.

[0188] The cylindrical portions 101 of dielectrics 16 and 17 are disposed in the through-hole 46 of the first outer conductor 13 in a state of being inserted into the connecting body 94 of the outer conductor tube 15. The lead-out portions 102 of dielectrics 16 and 17 are inserted into the openings 81, 82, and 83 of the second outer conductor 14.

[0189] like Figure 1 As shown, the dielectric consists of two types of dielectrics 16 and 17, one long and one short. The long dielectric 16 is positioned such that the cylindrical portion 101 is disposed in the upper through-hole 46, and the lead-out portion 102 is inserted into the rear openings 82 and 83, thus maintaining it as an outer conductor 13, 14, and 15. The short dielectric 17 is positioned such that the cylindrical portion 101 is disposed in the lower through-hole 46, and the lead-out portion 102 is inserted into the front opening 81, thus maintaining it as an outer conductor 13, 14, and 15.

[0190] (Inner conductor)

[0191] like Figure 1 As shown, the inner conductors 11 and 12 are pin-shaped terminals, each having a horizontal portion 104 extending in the front-rear direction and an extension portion 105 extending downward from the rear end of the horizontal portion 104, forming an L-shape when viewed from the side. The horizontal portion 104 has a counter-side connection portion 106 protruding forward from the cylindrical portion 101 when inserted into the dielectric 16 and 17. Figure 2 As shown, the opposite-side connection portion 106 protrudes into the housing 21 and is electrically connected to the opposite-side inner conductor 303 when the housing 18 and the opposite-side connector 300 are engaged. The extension portion 105 has a substrate connection portion 107 that protrudes downward from the lead-out portion 102 when inserted into the guide groove 103 of the lead-out portion 102 of the dielectric 16, 17. The substrate connection portion 107 is formed with a smaller diameter compared to the upper portion of the extension portion 105.

[0192] like Figure 1 As shown, the inner conductor consists of two types of inner conductors 11 and 12, one long and one short. The long inner conductor 11 is held within the long dielectric 16. The short inner conductor 12 is held within the short dielectric 17.

[0193] (Assembly method and function of shielded connectors)

[0194] First, the horizontal portions 104 of each inner conductor 11, 12 are inserted from the rear and held in the cylindrical portions 101 of the corresponding dielectrics 16, 17 (see reference). Figure 2 The extension portions 105 of the inner conductors 11 and 12 are exposed to the rear surface of the lead-out portion 102 while inserted into the guide groove 103. Next, the cylindrical portions 101 of each dielectric 16 and 17 are inserted from the rear and held in the connecting body 94 of the corresponding outer conductor tube 15. Then, the connecting body 94 of each outer conductor tube 15 is inserted from the rear and held in the through hole 46 of the corresponding first outer conductor 13. Figure 6 As shown, the front end of the connecting body 94 of the outer conductor tube 15 protrudes forward from the cylindrical portion 42 of the first outer conductor 13. It should be noted that the insertion of the dielectrics 16 and 17 into the outer conductor tube 15 can also be performed after the insertion of the outer conductor tube 15 into the first outer conductor 13.

[0195] Next, the first outer conductor 13 is connected to the housing 18 from the rear (see reference). Figure 6 During the connection process of the first outer conductor 13, the first connecting protrusion 43 passes over the first locking protrusion 28 and engages with the engaging hole 27. When the connection of the first outer conductor 13 is completed, the cylindrical portion 42 contacts the inside of the engaging recess 23, the connection operation of the first outer conductor 13 stops, and the first connecting protrusion 43 is embedded and pressed into the groove 25. Furthermore, as... Figure 2 and Figure 7 As shown, the first housing-side abutment portion 29 and the first outer conductor-side abutment portion 44 are in contact with each other facing each other in the front-rear direction. By pressing the first connecting protrusion 43 into the groove 25, the first outer conductor-side abutment portion 44 and the first housing-side abutment portion 29 are firmly in contact with each other, thus maintaining their contact state.

[0196] Next, the second outer conductor 14 is assembled from below onto the first outer conductor 13 (see reference). Figure 8 At the end of the assembly process of the second outer conductor 14, the inclined portion 73 of the protrusion 72 interferes with the side portion 38, and the side portion 38 slightly flexes and deforms outward in the width direction with the upper portion 37 as the fulcrum. When the assembly of the second outer conductor 14 is completed, the protrusions 47 and 48 of the first outer conductor 13 contact the bottom surfaces of the grooves 52 and 53 of the second outer conductor 14, etc., the assembly action of the second outer conductor 14 stops, and a restoring force acts on the side portion 38, such as... Figure 9 As shown, the protrusion 72 fits into the recess 56, and the contact surface 74 of the protrusion 72 contacts the contact surface 58 of the recess 56. Here, an overlap is provided between the contact surface 74 of the protrusion 72 and the contact surface 58 of the recess 56, so that the two contact surfaces 58 and 74 are firmly in contact with each other and can maintain their contact state.

[0197] Even assuming a vertical vibration force is applied to the first outer conductor 13 and the second outer conductor 14, the contact surface 58 of the recess 56 and the contact surface 74 of the protrusion 72 maintain contact, thus ensuring the reliability of the electrical connection between the first outer conductor 13 and the second outer conductor 14. Figure 12 As shown, the engagement state of the concave portion 56 and the convex portion 72 can be visually identified under rear-view observation.

[0198] Furthermore, when the second outer conductor 14 is assembled, the press-in protrusion 75 fits into the press-in recess 45 from below, as shown in the image. Figure 11 As shown, each contact rib 68 of the pressed-in protrusion 75 contacts the inner surface of the opening side of the pressed-in recess 45 in a flattened state. Therefore, the second outer conductor 14 maintains the contact state of the two contact surfaces 58 and 74 on the rear end side, and maintains the contact state of the pressed-in protrusion 75 and the pressed-in recess 45 on the front end side, thereby maintaining a stable position relative to the first outer conductor 13 without tilting in the front-rear direction.

[0199] Additionally, when the second outer conductor 14 is assembled, such as Figure 10 As shown, the second connecting protrusion 76 is fitted into the fitting groove 34 of the housing 18, and the pressing rib 78 of the second outer conductor side abutment 77 is recessed and contacts the second housing side abutment 33, thus keeping the second outer conductor side abutment 77 in an anti-detachment state relative to the housing 18. Each leg 54 of the first outer conductor 13 is fitted into each cutout 79 of the bottom 59. Here, the displacement limiting surface 55 of the front leg 54 is positioned close to the rear surface opposite to the second housing side abutment 33 of the second locking protrusion 32, allowing for contact. Even if a foreign object or the like interferes with the second locking protrusion 32 of the housing 18, causing the second locking protrusion 32 to expand outward in the width direction, the displacement of the second locking protrusion 32 can be suppressed because the displacement limiting surface 55 of the first outer conductor 13 is opposite to it in the displacement direction. As a result, the assembly state of the second housing side abutment portion 33 and the second outer conductor side abutment portion 77 can be maintained, and the shaking of the outer conductors 13, 14, 15 and the housing 18 can be suppressed.

[0200] Furthermore, when the second outer conductor 14 is assembled, the back 61, the raised portion 62, and the connecting portion 63 of the second outer conductor 14, which serve as the fitting portion, fit into the fitting receiving portion 39 of the first outer conductor 13 (see reference). Figure 3 The protrusions 49 of the second outer conductor 14 are fitted into the grooves 51 of the first outer conductor 13 (see reference). Figure 12 And the protrusions 47 and 48 of the first outer conductor 13 are fitted into the grooves 52 and 53 of the second outer conductor 14 (see reference). Figure 5The contact ribs 64-69 of the second outer conductor 14 are in a flattened state and contact the corresponding surfaces of the inner surfaces of the grooves 51 and the outer surfaces of the protrusions 47 and 48 of the first outer conductor 13. Thus, multiple electrical connection structures (contact structures) via the contact ribs 64-69 are formed between the first outer conductor 13 and the second outer conductor 14. Therefore, the reliability of the electrical connection with the first outer conductor 13 and the second outer conductor 14 can be improved.

[0201] Each contact rib 64-69 contacts the corresponding surface in the vertical direction. Therefore, even if a vertical vibration force is applied to the first outer conductor 13 and the second outer conductor 14, the contact state of each contact rib 64-69 can be maintained. In particular, in the case of this embodiment 1, multiple contact ribs 64-69 are formed on the inner surface of each groove 52, 53 and the outer surface of each protrusion 49 of the second outer conductor 14. Each protrusion 49 of the second outer conductor 14 is fitted into each groove 51 of the first outer conductor 13, and each protrusion 47, 48 of the first outer conductor 13 is fitted into each groove 52, 53 of the second outer conductor 14. Therefore, each contact rib 64-69 can reliably contact the corresponding surface.

[0202] In the assembled state of the first outer conductor 13 and the second outer conductor 14, such as Figure 2 As shown, the upright portion 62 is configured with an outer conductor tube 15, a short dielectric 17, and a short inner conductor 12 arranged from the rear, covering the through-hole 46 on the lower side. Furthermore, the back portion 61 is configured with an outer conductor tube 15, a long dielectric 16, and a long inner conductor 11 arranged from the rear, covering the through-hole 46 on the upper side. The extension portions 105 of the inner conductors 11 and 12 are completely surrounded by the outer conductors 13, 14, and 15, except for the substrate connection portion 107. With the above description, the assembly of the shielded connector 10 is completed.

[0203] Next, the shielding connector 10 is disposed on the surface of the circuit board 200 (see reference). Figure 2 The substrate connection portions 107 of each inner conductor 11, 12 are inserted into the connection holes 202 of the circuit board 200, and the legs 54 of each outer conductor 13 are inserted into the fixing holes 201 of the circuit board 200. The mounting portions 84-87 are placed on the pads of the conductive portions of the circuit board 200. In this state, reflow soldering is performed, thereby connecting the substrate connection portions 107 of each inner conductor 11, 12 to the signal conductive portions in the connection holes 202 of the circuit board 200 with solder. Furthermore, each leg 54 is fixed to the fixing hole 201 with solder, and each mounting portion 84-87 is connected to the ground conductive portion with solder.

[0204] like Figure 4As shown, each inner conductor 11, 12 is surrounded by a plurality of mounting portions 84 to 87 on the bottom surface 92 of the second outer conductor 14. Therefore, crosstalk between adjacent inner conductors 11, 12 in both the width and front-back directions can be suppressed. A surface wiring 250 extending rearward from a position corresponding to the first opening 82 and the second opening 83 is formed on the circuit board 200. Conversely, a first recess 88 is formed behind the first opening 82 on the bottom surface 92 of the second outer conductor 14, and a second recess 89 is formed behind the second opening 83. Therefore, the surface wiring 250 extending rearward from the position corresponding to the first opening 82 can avoid electrical contact with the second outer conductor 14 via the first recess 88. Furthermore, the surface wiring 250 extending rearward from the position corresponding to the second opening 83 can avoid electrical contact with the second outer conductor 14 via the second recess 89. As a result, it is possible to prevent the electromagnetic field coupling between the outer conductors 13 and 14 and the surface wiring 250.

[0205] In addition, a supplementary mounting portion 87, which extends in the front-rear direction along the side edge of the inner side of each of the first recess 88 and the second recess 89, is formed between the first recess 88 and the second recess 89. Therefore, crosstalk between the long inner conductor 11 arranged in the first opening 82 and the second opening 83 can be suppressed with high reliability.

[0206] [Other embodiments of this disclosure]

[0207] It should be considered that the above-described implementation method 1 disclosed herein is illustrative in all respects and not restrictive.

[0208] In the case of Embodiment 1 described above, the protrusion is formed on both the first outer conductor and the second outer conductor. However, according to other embodiments, the protrusion may also be formed on only either the first outer conductor or the second outer conductor.

[0209] In Embodiment 1 described above, the contact rib is formed on both the outer surface of the protrusion and the inner surface of the groove. However, according to other embodiments, the contact rib may also be formed on only either the outer surface of the protrusion or the inner surface of the groove.

[0210] In the case of Embodiment 1 described above, the contact rib is formed only on the second outer conductor. However, according to other embodiments, the contact rib may also be formed on the first outer conductor, or on both the first and second outer conductors.

[0211] In the case of Embodiment 1 described above, the recess is formed on the inner surface of the mating receiving portion of the first outer conductor, and the convex portion is formed on the outer surface of the mating portion of the second outer conductor. However, according to other embodiments, the recess may be formed on the outer surface of the mating portion of the second outer conductor, and the convex portion may be formed on the inner surface of the mating receiving portion of the first outer conductor.

[0212] In the case of Embodiment 1 described above, the outer conductor is composed of a first outer conductor, a second outer conductor, and an outer conductor tube. However, according to other embodiments, the outer conductor may also be composed of a first outer conductor and a second outer conductor without the outer conductor tube. For example, the cylindrical portion corresponding to the connecting body of the outer conductor tube may also be integrally formed with the first outer conductor.

Claims

1. A shielded connector, wherein, The shielded connector includes: an inner conductor; an outer conductor surrounding the inner conductor; and a dielectric disposed between the inner conductor and the outer conductor. The outer conductor has a first outer conductor and a second outer conductor assembled together. At least one of the first outer conductor and the second outer conductor has a protrusion that protrudes along the assembly direction of the first outer conductor and the second outer conductor, and the other of the first outer conductor and the second outer conductor has a groove that engages the protrusion when the first outer conductor and the second outer conductor are assembled. A contact rib is formed on at least one of the outer surface of the protrusion and the inner surface of the groove, and the contact rib extends along the assembly direction to contact the other of the outer surface of the protrusion and the inner surface of the groove. The protrusion and the groove are located on both the first outer conductor and the second outer conductor. The contact ribs are formed on both the outer surface of the protrusion and the inner surface of the groove. Each of the contact ribs protrudes from the outer surface of the protrusion and the inner surface of the groove in a direction perpendicular to the assembly direction.

2. The shielded connector according to claim 1, wherein, The inner conductor is arranged along the width direction within the first outer conductor. The first outer conductor has the protrusion at a position that separates the adjacent inner conductors along the width direction.

Images