Shielded conductive path

Abstract

A shielded conductive path (A) for miniaturization includes a shielded wire (10) and a shielded terminal (20). The shielded wire (10) is surrounded by a shielding layer (13) for a core wire (11). The shielded terminal (20) has an inner conductor (21) connected to the core wire (11) and an outer conductor (23) having an open cylindrical crimping portion (25). The crimping portion (25) has a first fastening portion (27) having a protruding first locking portion (31) and a second fastening portion (28) having a second locking portion (38). The first locking portion (31) is crimped onto the outer surface of the shielding layer (13) in a state where the first locking portion (31) is locked into the second locking portion (38). The radial locking amount of the first locking portion (31) and the second locking portion (38) is within the range of the plate thickness of the second fastening portion (28).

Description

This application is a divisional application of Chinese application filed on May 6, 2021, with application number 202180034244.X and entitled "Shielding Conductive Path". Technical Field

[0001] This disclosure relates to shielding conductive paths. Background Technology

[0002] Patent Document 1 discloses a structure in which a U-shaped fastening portion formed on an outer conductor terminal is pressed onto the outer periphery of the shielding conductor of a shielded wire. A first hook-shaped piece with a folded-back bend is formed at one end of the fastening portion, and a second hook-shaped piece with a folded-back bend is formed at the other end of the fastening portion. When the fastening portion is pressed onto the shielded wire, the engagement of the first and second hook-shaped pieces prevents the fastening portion from expanding or deforming. Existing technical documents Patent documents

[0003] Patent Document 1: Japanese Patent Application Publication No. 2014-060105 Summary of the Invention The problem that the invention aims to solve

[0004] Because the first hook-shaped piece and the second hook-shaped piece, which are folded back, engage in a radially overlapping manner with four layers, the aforementioned fastening part has the problem of radially enlarging the pressing portion.

[0005] The shielded conductive path disclosed herein is accomplished based on the above-described circumstances, with the aim of minimizing the diameter. Solution for solving the problem

[0006] The shielded conductive path disclosed herein includes shielded wires and shielded terminals. The shielded wire has its core wire surrounded by a shielding layer. The shielding terminal has an inner conductor connected to the core wire and an outer conductor having an open cylindrical crimp portion. The crimping portion has a first fastening portion with a protruding first locking portion and a second fastening portion with a second locking portion, so that the first locking portion is locked in the second locking portion and crimped onto the outer surface of the shielding layer. The radial locking amount of the first locking part and the second locking part is within the range of the plate thickness of the second fastening part. Invention Effects

[0007] According to this disclosure, path reduction can be achieved. Attached Figure Description

[0008] Figure 1 This is a top view of the shielded conductive path in Example 1. Figure 2 It is a side cross-sectional view of the shielded conductive path. Figure 3 yes Figure 1 XX-line sectional view. Figure 4 It is a three-dimensional diagram showing the shape of the crimping part before crimping. Figure 5 This is the unfolded diagram of the crimped part. Figure 6 This is a perspective view showing the shape of the crimping portion before crimping in Example 2. Figure 7 This is a cross-sectional view of the shielded conductive path of Example 2, corresponding to XX. Figure 8 This is a cross-sectional view of the shielded conductive path of Example 3, corresponding to XX. Figure 9 This is a cross-sectional view of the shielded conductive path of Example 4, corresponding to XX. Figure 10 This is a partial top view of the shielded conductive path in Example 5. Figure 11 yes Figure 10 YY line cross-sectional view. Detailed Implementation

[0009] (Description of embodiments of this disclosure) First, the implementation methods of this disclosure are listed and explained. The shielded conductive path disclosed herein (1) The shielded wire and shielded terminal are provided. The shielded wire is surrounded by a shielding layer. The shielded terminal has an inner conductor connected to the core wire and an outer conductor with an open cylindrical crimping portion. The crimping portion has a first fastening portion with a protruding first locking portion and a second fastening portion with a second locking portion, such that the first locking portion is locked in place by the second locking portion and is crimped onto the outer surface of the shielding layer. The radial locking amount of the first locking portion and the second locking portion is within the thickness of the second fastening portion. Because the radial locking amount of the first locking portion and the second locking portion is within the thickness of the second fastening portion, the shielded conductive path of this disclosure can achieve a smaller diameter compared to a structure that ensures the radial locking amount of the first locking portion and the second locking portion is outside the thickness range of the first fastening portion and the second fastening portion.

[0010] (2) In (1), preferably, the first locking portion is a shape in which the top end of the first fastening portion is bent back. According to this structure, the locking strength is higher than that of a structure in which the top edge of the first fastening portion is bent vertically.

[0011] (3) In (1), preferably, the first locking portion is a shape in which a portion of the first fastening portion is cut in the thickness direction of the first fastening portion. According to this structure, material costs can be reduced compared to a structure in which the portion extending from the outer periphery of the first fastening portion in the same plane is bent.

[0012] (4) In (1), preferably, the first locking part is a shape in which the first fastening part is bent along a circumferential fold line. According to this structure, since the first locking part has high rigidity relative to the external force in the circumferential direction, it can prevent the expansion deformation of the crimped part caused by the deformation of the first locking part.

[0013] (5) Preferably, the first fastening part is stacked on the outer peripheral side of the second fastening part. According to this structure, since the locking part of the first locking part and the locking part of the second locking part are not exposed to the outer peripheral surface of the second fastening part, it is possible to prevent the locking part of the first locking part and the locking part of the second locking part from falling off the second locking part due to interference from foreign objects.

[0014] (6) Preferably, the first fastening part and the second fastening part are provided with displacement limiting parts that can restrict relative displacement of the first fastening part and the second fastening part in the axial direction by abutting against each other. According to this structure, since the displacement limiting parts prevent relative displacement of the first fastening part and the second fastening part in the axial direction, the locking state of the first locking part and the second locking part can be maintained.

[0015] (Details of the embodiments disclosed herein) (Example 1) Reference Figures 1-5 Embodiment 1, which embodies this disclosure, is described below. Furthermore, the invention is not limited to these illustrations, but is shown by the claims, encompassing all modifications within the meaning and scope of the claims. In this embodiment 1, regarding the front-back direction, Figure 1 , 2 The left side is defined as the front. Regarding the up and down directions, [the text continues with further details about directions and directions]. Figure 2 , 3 The directions shown are defined as above and below as is.

[0016] The shielded conductive path A of this embodiment 1 includes a shielded wire 10, a sleeve 15 embedded in the shielded wire 10, and a shielded terminal 20 connected to the front end of the shielded wire 10 via the sleeve 15. The shielded wire 10 is configured such that the core wire 11 is surrounded by an insulating covering portion 12, a cylindrical shielding layer 13 is overlapped on the outer periphery of the insulating covering portion 12, and a sheath 14 surrounds the outer periphery of the shielding layer 13.

[0017] The front end of the shielded wire 10 is configured so that its axial direction is oriented in the front-to-back direction. In the following description, the front-to-back direction and the axial direction are used synonymously. Figure 2 As shown, at the front end of the shielded wire 10, the sheath 14 and the insulating cover 12 are removed, the core wire 11 is exposed in front of the insulating cover 12, the sheath 14 is removed, and the shielding layer 13 is exposed. A conductive cylindrical sleeve 15 of metal or the like is embedded around the outer periphery of the shielding layer 13. The front end of the shielding layer 13 is folded back to cover the outer periphery of the sleeve 15.

[0018] The shielding terminal 20 is configured to include: an inner conductor 21 connected to the front end of the core wire 11; a dielectric body 22 housing the inner conductor 21; and an outer conductor 23 assembled to the dielectric body 22 in a manner that surrounds the outer periphery of the dielectric body 22. The outer conductor 23 is configured to include: a cylindrical body portion 24 forming the front end of the outer conductor 23; and a cylindrical crimping portion 25 connected to the rear end of the body portion 24, forming the rear end of the outer conductor 23. The axis of the outer conductor 23 is coaxial with the axis of the shielded wire 10, pointing in the front-rear direction. The inner conductor 21 and the dielectric body 22 are housed within the body portion 24.

[0019] The crimping portion 25 is used to secure the outer conductor 23 to the outer periphery of the shielded wire 10. The crimping portion 25 includes: a substrate portion 26 extending rearward from the rear end of the main body portion 24; a first fastening portion 27 extending circumferentially from the substrate portion 26; and a second fastening portion 28 extending circumferentially from the substrate portion 26 in the opposite direction to the first fastening portion 27. Figure 4 As shown, when the crimping portion 25 is not crimped to the shielded wire 10, the crimping portion 25 is formed into a tapered shape that gradually expands in diameter from the front end to the rear end. The first extended end edge 29, which is the top edge of the first fastening portion 27 in the extending direction, and the second extended end edge 30, which is the top edge of the second fastening portion 28 in the extending direction, are circumferentially separated.

[0020] A first locking portion 31 and a first displacement limiting portion 35 are formed on the first extended edge portion 29. The first locking portion 31 is disposed at the rear end of the first extended edge portion 29. The first locking portion 31 has a base 32 that protrudes circumferentially from the rear end of the first extended edge portion 29 toward the second extended edge portion 30, and a folded-back portion 33 that folds back circumferentially from the protruding end of the base 32. The base 32 is connected to the first fastening portion 27 in a coplanar manner. In other words, the outer peripheral surface of the base 32 and the outer peripheral surface of the first fastening portion 27 are smoothly continuous, and the inner peripheral surface of the base 32 and the inner peripheral surface of the first fastening portion 27 are smoothly continuous. Therefore, there are no radial steps at the boundary between the base 32 and the first fastening portion 27.

[0021] The folded-back portion 33 is configured to either fit tightly against the inner circumferential surface of the base portion 32 or to be positioned close to the inner circumferential surface of the base portion 32. The width dimension of the folded-back portion 33 in the axial direction is the same as the width dimension of the base portion 32 in the axial direction. The folded-back portion 33 protrudes radially inward from the inner circumferential surface of the base portion 32 and the first fastening portion 27. The top surface of the folded-back portion 33 functions as a first locking surface 34, positioned radially inward from the first fastening portion 27, facing the first fastening portion 27 and the base plate portion 26 in the circumferential direction, and orthogonal to the circumferential direction. The first locking portion 31 is formed as a protrusion protruding radially inward from the first fastening portion 27.

[0022] The first displacement limiting portion 35 is formed in the region of the first extended edge portion 29 that is forward of the first locking portion 31. The first displacement limiting portion 35 has a pair of first protrusions 36 spaced apart in the front-rear direction, and a first recess 37 formed between the two first protrusions 36. The first protrusions 36 are shaped to protrude from the first extended edge portion 29 toward the second extended edge portion 30. The first recess 37 is shaped to recess the first extended edge portion 29.

[0023] A second locking portion 38 and a second displacement limiting portion 41 are formed on the second extended end edge 30. The second locking portion 38 is disposed at the rear end of the second extended end edge 30. The second locking portion 38 protrudes circumferentially from the rear end of the second extended end edge 30 toward the first extended end edge 29. The second locking portion 38 is connected to the second fastening portion 28 on the same plane. In other words, the outer peripheral surface of the second locking portion 38 and the outer peripheral surface of the second fastening portion 28 are smoothly continuous, and the inner peripheral surface of the second locking portion 38 and the inner peripheral surface of the second fastening portion 28 are smoothly continuous. Therefore, there are no radial steps at the boundary between the second locking portion 38 and the second fastening portion 28.

[0024] The second locking portion 38 has a square opening 39. The opening 39 is cut in such a way that the second fastening portion 28 can pass through from the outer peripheral surface to the inner peripheral surface. The inner peripheral surface of the opening 39 has two inner side surfaces spaced apart circumferentially with respect to the pressing portion 25, and a front surface and a rear surface spaced apart axially. The inner side surface closer to the first extension edge portion 29 of the two inner side surfaces functions as the second locking surface 40. The second locking surface 40 is disposed only within the thickness range of the second fastening portion 28 and the second locking portion 38. The second locking surface 40 is a surface orthogonal to the circumferential direction, facing the second fastening portion 28 and the substrate portion 26 in the circumferential direction.

[0025] The second displacement limiting portion 41 is formed in the region of the second extended edge portion 30 that is forward of the second locking portion 38. The second displacement limiting portion 41 has a pair of second recesses 42 spaced apart in the front-rear direction, and a second protrusion 43 formed between the two second recesses 42. The second recesses 42 are shaped to recess the second extended edge portion 30. The second protrusion 43 is shaped to protrude from the second extended edge portion 30 toward the first extended edge portion 29.

[0026] A stop portion 44 is formed in the first fastening portion 27. The stop portion 44 is formed by cutting off a portion of the first fastening portion 27 in a radially inward and obliquely forward manner. The stop portion 44 of the first fastening portion 27 is positioned closer to the substrate portion 26 than the first extension edge portion 29. The front end of the stop portion 44 of the first fastening portion 27 is located forward of the first locking portion 31. A stop portion 44 is formed in the second fastening portion 28. The stop portion 44 is formed by cutting off a portion of the second fastening portion 28 in a radially inward and obliquely forward manner. The stop portion 44 of the second fastening portion 28 is positioned closer to the substrate portion 26 than the second extension edge portion 30. The front end of the stop portion 44 of the second fastening portion 28 is located forward of the second locking portion 38.

[0027] The crimping of the crimping portion 25 relative to the shielded wire 10 is performed by assembling the crimping portion 25 and the front end of the shielded wire 10 onto a crimping machine (not shown). During the crimping process, the first fastening portion 27 and the second fastening portion 28 are deformed by reducing their diameter and are fastened by winding them around the outer periphery of the shielded wire 10. With the crimping portion 25 crimped onto the shielded wire 10, the rear ends of the first locking portion 31 and the second locking portion 38 formed in the first fastening portion 27 and the second fastening portion 28 are externally embedded in the front end of the sheath 14.

[0028] The portion of the crimping part 25 that is crimped to the sheath 14, such as Figure 3 As shown, the outer peripheral surfaces of the first extended edge 29 overlap with those of the second extended edge 30 and the second locking portion 38. Specifically, the base end of the first locking portion 31, which is closest to the substrate portion 26 in the circumferential direction, overlaps with the top end of the second locking portion 38, which is furthest from the substrate portion 26 in the circumferential direction. The folded-back portion 33 is housed within the opening 39, and the first locking surface 34 and the second locking surface 40 abut circumferentially in a face-to-face contact state. Through the locking action based on the abutment of the two locking surfaces 34 and 40, the first fastening portion 27 and the second fastening portion 28 are prevented from shifting relative to each other in a circumferentially separated manner, and the crimping portion 25 is securely fixed to the outer periphery of the shielded wire 10.

[0029] The regions of the first fastening portion 27 and the second fastening portion 28 that are forward of the first locking portion 31 and the second locking portion 38, i.e., the regions where the first displacement limiting portion 35 and the second displacement limiting portion 41 are formed, are fitted into the region of the exposed shielding layer 13 that is forward of the sheath 14. With the first protrusion 36 and the second recess 42 engaged, and the first recess 37 and the second protrusion 43 engaged, the first fastening portion 27 and the second fastening portion 28 are pressed against the outer periphery of the shielding layer 13. Through the engagement of the first protrusion 36 and the second recess 42, and the engagement of the first recess 37 and the second protrusion 43, the relative displacement of the first fastening portion 27 and the second fastening portion 28 relative to the axial direction is restricted.

[0030] The shielded conductive path A of this embodiment 1 includes a shielded wire 10 and a shielded terminal 20. The shielded wire 10 is surrounded by a shielding layer 13 around a core wire 11. The shielding terminal 20 has an inner conductor 21 connected to the core wire 11 and an outer conductor 23 having an open cylindrical crimping portion 25. The crimping portion 25 has a first fastening portion 27 having a protruding first locking portion 31 and a second fastening portion 28 having a second locking portion 38. The crimping portion 25 is crimped onto the outer surface of the shielding layer 13 in a state where the first locking portion 31 is locked in place by the second locking portion 38. The radial locking amount of the first locking portion 31 and the second locking portion 38, that is, the locking range of the first locking surface 34 and the second locking surface 40 in the plate thickness direction of the two locking portions 31 and 38, is limited to the plate thickness range of the second fastening portion 28 (the second locking portion 38).

[0031] When the locking amount of the first locking part 31 and the second locking part 38 is ensured to be outside the range of the plate thickness of the first fastening part 27 and the second fastening part 28 on the outer periphery of the shielded wire 10, it becomes a three-layer stacked structure consisting of the layer of the first fastening part 27, the layer of the second fastening part 28, and the layer of the locking amount of the two locking parts 31 and 38. Therefore, the outer diameter of the shielded conductive path A becomes larger.

[0032] In contrast, in this embodiment 1, because the radial locking amount of the first locking portion 31 and the second locking portion 38 is ensured within the thickness of the second fastening portion 28, the outer periphery of the shielded wire 10 becomes a two-layer structure consisting only of the first fastening portion 27 and the second fastening portion 28. Therefore, the diameter of the shielded conductive path A can be reduced at the crimping portion of the shielded wire 10 and the crimping portion 25. Because the first locking portion 31 is shaped such that the top end of the first fastening portion 27 is bent in a folded-back manner, the locking strength is higher compared to a structure where the top edge of the first fastening portion 27 is bent vertically.

[0033] The first extended edge 29 of the first fastening part 27 is stacked on the outer periphery of the second extended edge 30 of the second fastening part 28. According to this structure, the locking portion (folded-back portion 33 and first locking surface 34) of the first locking part 31 that engages with the second locking part 38 does not protrude to the outer periphery of the second fastening part 28. Therefore, it is possible to prevent the locking portion (folded-back portion 33 and first locking surface 34) of the first locking part 31 from detaching from the second locking part 38 (second locking surface 40) due to interference from foreign objects.

[0034] A first displacement limiting part 35 is formed in the first fastening part 27, and a second displacement limiting part 41 is formed in the second fastening part 28. By abutting against each other, the relative displacement of the first fastening part 27 and the second fastening part 28 in the axial direction can be limited, thus maintaining the locking state of the first locking part 31 and the second locking part 38.

[0035] With the crimping portion 25 crimped onto the shielded wire 10, a pair of stop portions 44 are arranged either abutting against the sleeve 15 from the rear or facing the sleeve 15 from the rear. According to this arrangement, even if the shielded wire 10 is pulled rearward, it contacts the stop portions 44 via the rear end of the sleeve 15, thereby preventing the shielded wire 10 from shifting rearward relative to the shielding terminal 20.

[0036] (Example 2) Reference Figures 6-7 Embodiment 2, which embodies the present disclosure, is described below. In this embodiment 2, the shielded conductive path B is a shielded conductive path with the crimping portion 50 having a different structure than that in Embodiment 1 described above. Regarding other structures, they are the same as in Embodiment 1 described above; therefore, the same reference numerals are used to label identical structures, and descriptions of structures, functions, and effects are omitted.

[0037] The crimping portion 50 of this embodiment 2 includes: a substrate portion 51 extending rearward from the rear end of the main body portion 24 of the outer conductor 23; a first fastening portion 52 extending from the substrate portion 51 in a circumferential direction; and a second fastening portion 53 extending from the substrate portion 51 in a direction opposite to the first fastening portion 52 in the circumferential direction. Figure 6 As shown, when the crimping portion 50 is not crimped to the shielded wire 10, the crimping portion 50 is formed into a tapered shape that gradually expands in diameter from the front end to the rear end.

[0038] A first locking portion 55 is formed on the first extending edge 54, which is the top edge of the first fastening portion 52 in the extending direction. The first locking portion 55 has a base 56 that protrudes circumferentially from the rear end of the first extending edge 54 toward the second extending edge 59 of the second fastening portion 53, and a folded-back portion 57 that folds back circumferentially from the protruding end of the base 56. The base 56 is connected to the first fastening portion 52 in a coplanar manner.

[0039] The folded-back portion 57 is configured to either fit tightly against the inner circumferential surface of the base portion 56 or to be positioned close to the inner circumferential surface of the base portion 56. The folded-back portion 57 protrudes radially outward from the inner circumferential surfaces of the base portion 56 and the first fastening portion 52. The top surface of the folded-back portion 57 functions as a first locking surface 58, facing the first fastening portion 52 and the base plate portion 51 in the circumferential direction and orthogonal to the circumferential direction. The first locking portion 55 is formed as a protrusion protruding radially outward from the first fastening portion 52.

[0040] A second locking portion 60 is formed on the second extended end edge 59, which is the top edge of the second fastening portion 53 in the extending direction. The second locking portion 60 protrudes circumferentially from the rear end of the second extended end edge 59 toward the first extended end edge 54. The second locking portion 60 is connected to the second fastening portion 53 in a coplanar manner. The second locking portion 60 has a square opening 61. The opening 61 is shaped to allow the second fastening portion 53 to pass through from the outer peripheral surface to the inner peripheral surface.

[0041] The inner circumferential surface of the opening 61 has two inner surfaces spaced apart circumferentially from the pressing portion 50, and a front surface 63 and a rear surface 64 spaced apart axially. The inner surface closer to the first extension edge 54 of the two inner surfaces functions as a second locking surface 62. The second locking surface 62 is disposed only within the thickness range of the second fastening portion 53 and the second locking portion 60, faces the second fastening portion 53 and the base plate portion 51 in the circumferential direction, and is orthogonal to the circumferential direction.

[0042] With the crimping portion 50 crimped onto the shielded wire 10, the rear ends of the first locking portion 55 and the second locking portion 60 formed in the first fastening portion 52 and the second fastening portion 53 are externally embedded in the front end of the sheath 14. For example... Figure 7 As shown, the outer peripheral surfaces of the second locking portion 60 and the first locking portion 55 overlap. The portion of the second locking portion 60 that is furthest from the substrate portion 51 in the circumferential direction, i.e., the top portion, overlaps with the outer peripheral surface of the portion of the first locking portion 55 that is closest to the substrate portion 51 in the circumferential direction, i.e., the base end portion.

[0043] The folded-back portion 57 is housed within the opening 61, and the first locking surface 58 and the second locking surface 62 abut against each other in a circumferential contact state. Through the locking action based on the abutment of the two locking surfaces 58 and 62, the first fastening portion 52 and the second fastening portion 53 are prevented from shifting relative to each other in a circumferentially separated manner, and the crimping portion 50 is securely fixed to the outer periphery of the shielded wire 10.

[0044] The leading edge of the folded-back portion 57 faces the front surface 63 of the opening portion 61 from the rear, and the trailing edge of the folded-back portion 57 faces the rear surface 64 of the opening portion 61 from the front. When an external force is applied to the first fastening portion 52 and the second fastening portion 53, which would cause the first fastening portion 52 to shift forward relative to the first fastening portion 52, the leading edge of the folded-back portion 57 abuts against the front surface 63 of the opening portion 61, thereby preventing the relative shift of the first fastening portion 52. When an external force is applied to the first fastening portion 52 and the second fastening portion 53, which would cause the first fastening portion 52 to shift rearward relative to the first fastening portion 52, the trailing edge of the folded-back portion 57 abuts against the rear surface 64 of the opening portion 61, thereby preventing the relative shift of the first fastening portion 52.

[0045] (Example 3) Reference Figure 8 Embodiment 3, which embodies this disclosure, is described below. The shielded conductive path C in Embodiment 3 is a shielded conductive path in which the first locking portion 71 constituting the crimp portion 70 has a different structure than that in Embodiment 1 described above. Regarding other structures, they are the same as in Embodiment 1 described above; therefore, the same reference numerals are used to label the same structures, and descriptions of structures, functions, and effects are omitted.

[0046] In this embodiment 3, the first locking portion 71 has a cutting piece (cutting and erecting piece) 72 that cuts (cuts and erects) a portion of the first fastening portion 27 (first locking portion 71) radially inward. The cutting piece 72 has a bending portion 73 and a contact portion 74. The bending portion 73 protrudes circumferentially from the top end of the first locking portion 71 and is bent in a shape that protrudes radially inward than the top end of the first locking portion 71. The contact portion 74 extends circumferentially from the protruding end of the bending portion 73 toward the substrate portion 26. The protrusion dimension of the contact portion 74 from the first locking portion 71 radially inward is the same as the thickness of the second locking portion 38 of the second fastening portion 28. The extended end face of the contact portion 74 functions as a first locking surface 75 orthogonal to the circumferential direction.

[0047] With the crimping portion 70 crimped onto the shielded wire 10, the outer peripheries of the first locking portion 71 and the second locking portion 38 overlap, and a portion of the bent portion 73 and the entire contact portion 74 are housed within the inner periphery of the opening 39 of the second locking portion 38. The first locking surface 75 contacts the second locking surface 40 of the opening 39 in the circumferential direction. This contact prevents the first fastening portion 27 and the second fastening portion 28 from expanding and deforming in the circumferential direction, maintaining the crimped state of the crimping portion 70 relative to the shielded wire 10.

[0048] The first locking portion 71 is a shape in which a portion of the first fastening portion 27 is cut in the thickness direction of the first fastening portion 27. Compared with the structure in which the portion extending from the outer periphery of the first fastening portion 27 in the same plane is bent, the shielded conductive path C of this embodiment 3 can reduce material costs.

[0049] (Example 4) Reference Figure 9 Embodiment 4, which embodies this disclosure, is described below. The shielded conductive path D in Embodiment 4 is a shielded conductive path in which the first locking portion 81 constituting the crimp portion 80 has a different structure than that in Embodiment 1 described above. Regarding other structures, they are the same as in Embodiment 1 described above; therefore, the same reference numerals are used to label the same structures, and descriptions of structures, functions, and effects are omitted.

[0050] In this embodiment 4, the first locking portion 81 has a cutting tab 82 that cuts a portion of the first fastening portion 27 radially inward. The cutting tab 82 protrudes circumferentially from the top end of the first locking portion 81 toward the substrate portion 26 and is bent in a shape that protrudes radially inward from the top end of the first locking portion 81. The radially inward protrusion dimension of the cutting tab 82 from the first locking portion 81 is the same as the thickness of the second locking portion 38 of the second fastening portion 28.

[0051] With the crimping portion 80 crimped onto the shielded wire 10, the outer peripheries of the first locking portion 81 and the second locking portion 38 overlap, and a portion of the cutting tab 82 is housed within the inner periphery of the opening 39 of the second locking portion 38. The protruding edge of the cutting tab 82 contacts the second locking surface 40 of the opening 39 in a circumferential contact state. This contact prevents the first fastening portion 27 and the second fastening portion 28 from expanding and deforming circumferentially, maintaining the crimped state of the crimping portion 80 relative to the shielded wire 10.

[0052] The first locking portion 81 is a shape in which a portion of the first fastening portion 27 is cut in the thickness direction of the first fastening portion 27. Compared with the structure in which the portion extending from the outer periphery of the first fastening portion 27 in the same plane is bent, the shielded conductive path D of this embodiment 4 can reduce material costs.

[0053] (Example 5) Reference Figures 10-11 Embodiment 5, which embodies this disclosure, is described below. In this embodiment 5, the shielded conductive path E is a shielded conductive path with the crimping portion 90 having a different structure than that in Embodiment 1 described above. Regarding other structures, they are the same as in Embodiment 1 described above; therefore, the same reference numerals are used to label identical structures, and descriptions of structures, functions, and effects are omitted.

[0054] The crimping portion 90 of this embodiment 5 includes: a substrate portion (not shown); a first fastening portion 91 extending from the substrate portion in a circumferential direction; and a second fastening portion 92 extending from the substrate portion in a direction opposite to the first fastening portion 91 in the circumferential direction.

[0055] A first locking portion 94 is formed on the first extended edge 93 of the first fastening portion 91. The first locking portion 94 has a base 95 and a pair of front and rear bent portions 96. The base 95 is shaped to protrude circumferentially from the rear end of the first extended edge 93 toward the second fastening portion 92. The base 95 is connected to the first fastening portion 91 on the same plane.

[0056] A pair of bent portions 96 are structures obtained by bending the leading and trailing edges of the base 95 perpendicular to the base 95. The boundary line between the base 95 and the bent portions 96, that is, the fold line 98 of the bent portions 96, extends circumferentially. The bent portions 96 are shaped to protrude radially inward from the inner circumferential surface of the base 95 and the first fastening portion 91. The radial protrusion dimension of the bent portions 96 is the same as the thickness of the second fastening portion 92 and the second locking portion 100. The circumferential surface of the bent portions 96 facing the substrate serves as the first locking surface 99 orthogonal to the circumferential direction. The first locking portion 94 is formed as a protrusion that protrudes radially inward from the first fastening portion 91.

[0057] A second locking portion 100 is formed on the second extended edge 97 of the second fastening portion 92. The second locking portion 100 protrudes circumferentially from the rear end of the second extended edge 97 toward the first fastening portion 91. The second locking portion 100 is connected to the second fastening portion 92 in a coplanar manner. The second locking portion 100 has a square opening 101. The opening 101 is cut in such a way that the second fastening portion 92 can be passed through from the outer peripheral surface to the inner peripheral surface. The inner peripheral surface of the opening 101 has two inner surfaces spaced apart circumferentially in the crimping portion 90 and a front surface and a rear surface spaced apart axially. The inner surface of the two inner surfaces closer to the first extended edge 93 functions as the second locking surface 102. The second locking surface 102 is disposed only within the thickness range of the second fastening part 92 and the second locking part 100, facing the side of the second fastening part 92 and the base 95 in the circumferential direction, and is orthogonal to the circumferential direction.

[0058] In the crimping portion 90, where it is crimped to the sheath 14, the outer peripheral surfaces of the first locking portion 94 and the second locking portion 100 overlap. The two bends 96 are housed within the opening 101, and the first locking surface 99 and the second locking surface 102 abut circumferentially in surface contact. Through the locking action based on the abutment of these two locking surfaces 99 and 102, the first fastening portion 91 and the second fastening portion 92 remain in a circumferentially non-separated state. Thus, the crimping portion 90 is securely fixed to the outer periphery of the shielded wire. Because the first locking portion 94 is formed by bending the first fastening portion 91 along the circumferential fold line 98, it has high rigidity relative to circumferential external forces. Therefore, it can prevent the crimping portion 90 from expanding and deforming due to deformation of the first locking portion 94.

[0059] (Other embodiments) This invention is not limited to the embodiments described above and illustrated in the drawings, but is illustrated by the claims. This invention includes all modifications within the meaning and scope of the claims, as well as the embodiments described below. In the above embodiment 1, displacement limiting parts are formed in the first fastening part and the second fastening part, but embodiment 1 may also be a form without displacement limiting parts. The displacement limiting part of Embodiment 1 described above can also be formed in Embodiments 2 to 5. In the above embodiments 1 to 5, the second locking portion is formed as a window-like opening with the opening edge connected throughout the entire circumference. However, the second locking portion may also be a cut-out shape with an opening at the outer edge of the second fastening portion. Explanation of reference numerals in the attached figures

[0060] A: Shielding the conductive path B: Shielding the conductive path C: Shielding conductive path D: Shielding conductive path E: Shielding conductive path 10: Shielded wires 11: Core wire 12: Insulation Covering Part 13: Shielding layer 14: Sheath 15: Sleeve 20: Shielding terminal 21: Inner conductor 22: Dielectric 23: External conductor 24: Main body 25: Crimping section 26: Substrate part 27: First fastener 28: Second fastener 29: First extended edge 30: Second extended edge 31: First locking part 32: Base 33: Turnback Section 34: First card stop surface 35: First shift restriction section 36: 1st protrusion 37: 1st concave part 38: Second stop part 39: Opening 40: Second card stop surface 41: Second shift limiting part 42: 2nd concave part 43: 2nd protrusion 44: Stop section 50: Crimping part 51: Substrate part 52: First fastener 53: Second fastener 54: First extended edge 55: First locking part 56: Base 57: Turnback Section 58: First card stop surface 59: Second extended edge 60: Second locking part 61: Opening 62: Second card stop surface 63: Front surface of the opening 64: Rear surface of the opening 70: Crimping part 71: First locking part 72: Slice 73: Bending section 74: Contact area 75: First card stop surface 80: Crimping section 81: First locking part 82: Slice 90: Crimping section 91: First fastener 92: Second fastener 93: First extended edge 94: First locking part 95: Base 96: Bending section 97: Second extended edge 98: Broken line 99: First card stop surface 100: Second locking part 101: Opening 102: Second stop surface

Claims

1. A shielded conductive path, comprising a shielded wire and a shielded terminal, The shielded wire has a shielding layer surrounding the core wire, and a sheath surrounding the shielding layer. The shielding terminal has an inner conductor connected to the core wire and an outer conductor having an open cylindrical crimp portion. At the front end of the shielded wire, the shielding layer is exposed only in an area forward of the front end of the sheath, and a sleeve is embedded around the outer periphery of the shielding layer. The crimping portion has a first fastening portion with a protruding first locking portion and a second fastening portion with a second locking portion. A first stop portion is formed in the first fastening portion. The first stop portion is formed by cutting off a portion of the first fastening portion in a radially inward and obliquely forward manner. The front end of the first stop portion is located forward of the first locking portion. A second stop is formed in the second fastening portion. The second stop is formed by cutting off a portion of the second fastening portion in a radially inward and obliquely forward manner. The front end of the second stop is located further forward than the second locking portion. With the crimping portion crimped onto the shielded wire, the first stop portion and the second stop portion are arranged to abut against the sleeve from the rear. The radial locking amount of the first locking part and the second locking part is within the range of the plate thickness of the second fastening part.

2. The shielded conductive path according to claim 1, wherein, The first locking part is formed by bending the top end of the first fastening part in a folded-back shape.

3. The shielded conductive path according to claim 1, wherein, The first locking portion is a shape in which a part of the first fastening portion is cut in the thickness direction of the first fastening portion.

4. The shielded conductive path according to claim 1, wherein, The first locking part is formed by bending the first fastening part along a circumferential fold line.

5. The shielded conductive path according to claim 1, wherein, The first fastening part is stacked on the outer periphery of the second fastening part.

6. The shielded conductive path according to any one of claims 1 to 5, wherein, The first fastening part and the second fastening part are provided with displacement limiting parts that can limit the relative displacement of the first fastening part and the second fastening part in the axial direction by abutting against each other.

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