Shield Terminal
The shield terminal design addresses noise leakage and limited molding flexibility by integrating a connecting and mounting member with an L-shaped configuration, enhancing shielding performance and flexibility through gap-free construction and separate crimping parts.
Patent Information
- Application Number
- JP2021190337
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-11-24
- Publication Date
- 2025-01-22
- Estimated Expiration
- 2041-11-24
AI Technical Summary
Existing shield terminals suffer from noise leakage through gaps in the inner corner of the outer conductor, which impairs shielding performance, and have limited molding flexibility due to the integration of the outer conductor crimping barrel and cylindrical terminal.
The shield terminal design includes a connecting member and a mounting member with a cylindrical portion and an extending portion forming an L-shape, where the extending and cylindrical parts are continuous via an inner corner, and a crimping part covers the extending part to crimp the shielded wire, eliminating gaps and enhancing molding flexibility.
This design improves shielding performance by preventing noise leakage and enhances molding flexibility by allowing separate formation of the crimping and cylindrical parts, reducing interference during crimping.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present disclosure relates to a shield terminal. [Background technology]
[0002] Patent Document 1 discloses a shield terminal called a connection terminal. The shield terminal has a connection portion and a terminal portion and is formed in an L-shape in a side view. The connection portion has an outer conductor crimping barrel portion and an insulator surrounding portion. The terminal portion has a cylindrical terminal outer conductor. The outer conductor crimping barrel portion, the insulator surrounding portion and the terminal outer conductor constitute the outer conductor of the shield terminal. The outer conductor crimping barrel portion is bent into a cylindrical shape when the outer conductor (shield portion) of the coaxial cable (shielded electric wire) is crimped. For this reason, a gap is formed at an inner corner portion (inner corner portion) between the tip side of the outer conductor crimping barrel portion and the terminal outer conductor. Note that the technology related to the shield terminal is also disclosed in Patent Documents 2 to 4. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2014-107140 A [Patent Document 2] JP 2014-107139 A [Patent Document 3] Japanese Patent Application Publication No. 9-120870 [Patent Document 4] Japanese Patent Application Publication No. 8-153557 Summary of the Invention [Problem to be solved by the invention]
[0004] In the case of Patent Document 1, there was a concern that noise due to high frequency signals would leak out or enter through gaps in the inner corners of the outer conductor, impairing the shielding performance. In addition, since the barrel shape of the outer conductor crimping barrel part and the tubular shape of the terminal outer conductor must be formed into a single outer conductor, there was also a problem that the freedom of molding was limited.
[0005] Therefore, an object of the present disclosure is to provide a shield terminal that can improve shielding performance and freedom in molding. [Means for solving the problem]
[0006] The present disclosure relates to a shielded terminal having an outer conductor connected to a shield portion of a shielded electric wire, the outer conductor having a connecting member and an attachment member separate from the connecting member, the connecting member having a tubular portion and an extending portion extending in a direction intersecting the tubular portion, the attachment member having a crimping portion that covers an outer surface of the extending portion and is crimped to the shielded electric wire by sandwiching the extending portion therebetween, the extending portion and the tubular portion being L-shaped in a side view and continuous via an inner angle formed between the outer surfaces of the extending portion and the tubular portion. Effect of the Invention
[0007] According to the present disclosure, it is possible to provide a shield terminal that can improve shielding performance and freedom in molding. [Brief description of the drawings]
[0008] [Figure 1] FIG. 1 is a cross-sectional view of a shield terminal connected to a shielded electric wire in the first embodiment. [Diagram 2] FIG. 2 is a perspective view of the dielectric. [Diagram 3] FIG. 3 is a perspective view of the connection member in which the interposition portion is in an open position relative to the tubular portion. [Figure 4] FIG. 4 is a rear view of the state of FIG. [Diagram 5] FIG. 5 is a perspective view of the mounting member. [Figure 6]FIG. 6 is a bottom view of the mounting member. [Figure 7] FIG. 7 is a perspective view showing a state in which a dielectric is assembled to a connection member in which an interposition portion is in an open position relative to a cylindrical portion. [Figure 8] FIG. 8 is a side view showing a state in which the interposition portion has reached a closed position relative to the cylindrical portion from the state shown in FIG. [Figure 9] FIG. 9 is a rear view of the state of FIG. [Figure 10] FIG. 10 is a perspective view showing the connection member in which the interposition portion is in a closed position relative to the cylindrical portion, and the shielded wire led out from the dielectric body. [Figure 11] FIG. 11 is a perspective view of a shield terminal connected to a shielded electric wire. [Figure 12] FIG. 12 is a side view of a shield terminal connected to a shielded electric wire in the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0009] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described. The shield terminal of the present disclosure comprises: (1) A shielded terminal having an outer conductor connected to a shield portion of a shielded electric wire, the outer conductor having a connecting member and an attachment member separate from the connecting member, the connecting member having a tubular portion and an extending portion extending in a direction intersecting the tubular portion, the attachment member having a crimping portion that covers an outer surface of the extending portion and is crimped to the shielded electric wire by sandwiching the extending portion therebetween, the extending portion and the tubular portion being L-shaped in a side view and continuous via an inner angle formed between the outer surfaces of the extending portion and the tubular portion.
[0010] According to the above configuration, the extension portion and the tubular portion are continuous through the inner corner portion, and no gap is formed at the inner corner portion, thereby improving the shielding performance. Also, since the mounting member has the crimping portion and the connection member has the tubular portion, the flexibility in forming the crimping portion and the tubular portion can be improved compared to the case where the crimping portion and the tubular portion are formed on a single outer conductor.
[0011] (2) It is preferable that the crimping portion has a base that contacts the outer surface of the extension portion and a barrel that protrudes from the base and surrounds the shielded wire, and that the side on which the barrel is located with respect to the base and the side on which the tubular portion is located with respect to the base are opposite each other.
[0012] According to the above configuration, it is possible to prevent the die for deforming the barrel from interfering with the tubular portion during the process of crimping the crimping portion to the shielded electric wire.
[0013] (3) The connecting member may have an interposition portion that is separate from the extension portion and is bent and connected to the tubular portion so as to be sandwiched between the shielded wire and the crimping portion, and the mounting member may have a shielding portion that closes a gap formed between the extension portion and the interposition portion.
[0014] According to the above configuration, the gap between the extending portion and the intermediate portion is also blocked by the shielding portion of the mounting member, so that the shielding performance can be further improved.
[0015] (4) An insulating dielectric is disposed between the outer conductor and the inner conductor, the dielectric having an insertion portion disposed inside the tubular portion and a dielectric main body portion extending in a direction intersecting the insertion portion and disposed along the extension portion, the connecting member having an opposing extension portion at a position opposite the extension portion, the opposing extension portion and the tubular portion having an L-shape in a side view and being continuous through an outer corner formed between the opposing extension portion and the outer surfaces of the tubular portion, the opposing extension portion being rotatable between an open position and a closed position around the outer corner relative to the tubular portion, the inside of the tubular portion being opened in the open position, and the dielectric main body portion being sandwiched between the extension portion and the connecting member in the closed position.
[0016] According to the above configuration, when the facing extension is in the open position, the dielectric insert can be inserted inside the tube to support the dielectric body on the extension. When the facing extension is in the closed position, the dielectric body is sandwiched between the facing extension and the extension, and the crimping part is crimped to the shielded wire, thereby restricting the facing extension from moving to the open position. At the same time, the dielectric is also restricted from coming out of the outer conductor.
[0017] [Details of the embodiment of the present disclosure] Specific examples of the present disclosure will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.
[0018] <Embodiment 1> As shown in FIG. 1, the shield terminal 10 of the first embodiment of the present disclosure includes a conductive inner conductor 11, an insulating dielectric 12, and a conductive outer conductor 13. The dielectric 12 is disposed between the inner conductor 11 and the outer conductor 13, and electrically insulates the inner conductor 11 from the outer conductor 13. The shield terminal 10 is connected to the end of the shielded electric wire 90. In the following description, the left side of FIG. 1 is the front side in the front-rear direction. The front side is the tip side of the shielded electric wire 90 in the length direction, and is indicated by the symbol F in the figure. The rear side is the opposite side of the front side, and is indicated by the symbol R in the figure. The top side of FIG. 1 is the top side in the up-down direction. The top side is the connection side to a mating shield terminal (not shown), and is indicated by the symbol U in the figure. The bottom side is the opposite side of the top side, and is indicated by the symbol D in the figure. These directions are merely defined for the convenience of explanation, and do not limit the mode of use.
[0019] <Shielded wire> The shielded electric wire 90 is a coaxial cable, and as shown in FIG. 1, has a core wire 91, a covering portion 92, a shield portion 93, and a sheath 94. The core wire 91 is a conductor that transmits a high-frequency signal. The covering portion 92 is a covering made of insulating resin that covers the outer periphery of the core wire 91. The shield portion 93 is a braided wire that covers the outer periphery of the covering portion 92. The shield portion 93 may have a structure in which a metal foil such as copper foil, gold foil, or aluminum foil is added to the braided wire. The sheath 94 is a covering made of insulating resin that covers the outer periphery of the shield portion 93. At the terminal portion of the shielded electric wire 90, the shield portion 93 is exposed by removing the sheath 94, and the core wire 91 is exposed by removing the covering portion 92. A cylindrical conductive sleeve 95 is inserted between the exposed shield portion 93 and the covering portion 92.
[0020] <Inner conductor> The inner conductor 11 is integrally formed by bending a metal plate or the like. As shown in Fig. 1, the inner conductor 11 is L-shaped in side view, has a core wire crimping portion 14 on the rear side, and has a mating inner conductor connecting portion 15 extending in the vertical direction on the front side. The core wire crimping portion 14 is crimped to and electrically connected to a core wire 91 of the shielded electric wire 90. The mating inner conductor connecting portion 15 comes into contact with and is electrically connected to a mating inner conductor of a mating shield terminal (not shown).
[0021] <Dielectric> The dielectric 12 is made of synthetic resin, has an L-shape in a side view, and has an insertion portion 16 along the up-down direction and a dielectric body portion 17 along the front-rear direction as shown in Figs. 1 and 2. The insertion portion 16 is cylindrical, and the mating inner conductor connection portion 15 of the inner conductor 11 is housed inside. The insertion portion 16 has a lower portion 71 located on the lower side, an upper portion 72 located on the upper side, and a step portion 73 located between the upper portion 72 and the lower portion 71. The upper portion 72 is formed to have a smaller diameter than the lower portion 71 via the step portion 73. A groove 74 extending in the up-down direction is formed on the outer circumferential surface of the lower portion 71. The upper end of the groove 74 opens into the step portion 73. The dielectric main body 17 has a rectangular cylindrical shape, and accommodates the core crimping portion 14 of the inner conductor 11 inside. The front portion of the dielectric main body 17 is connected to the rear portion of the insertion portion 16. As shown in Fig. 1, the insides of the dielectric main body 17 and the insertion portion 16 communicate with each other to form an inner conductor accommodating space S1 that is L-shaped in side cross section.
[0022] 2, the bottom wall 19 of the dielectric body 17 is connected to the front lower end of the insertion portion 16 via a hinge portion 18 and can be opened and closed about the hinge portion 18. When the bottom wall 19 of the dielectric body 17 is in an open state, the bottom of the insertion portion 16 is opened and the mating inner conductor connecting portion 15 can be inserted into the inside of the insertion portion 16 from below.
[0023] 10, a pair of rib-shaped engaged parts 21 extending in the front-rear direction are formed at the left and right corners of the upper side of the dielectric main body 17. The outer surface of the engaged parts 21 is formed with inclined slopes 22 by chamfering the corners.
[0024] <Outer conductor> The outer conductor 13 is integrally formed by bending a single metal plate, etc. As shown in Fig. 1, the outer conductor 13 has an L-shape as a whole when viewed from the side, and includes a connection member 23 and an attachment member 24. The connection member 23 and the attachment member 24 are separate bodies and can be separated from each other.
[0025] 8, in a closed position described later, connecting member 23 is L-shaped in side view and has a cylindrical tube portion 25, and plate-like extending portion 26 and intermediate portion 27 that intersect and continue to tube portion 25. In the following description of connecting member 23, the front-rear and up-down directions are based on the state in the closed position described later (the state shown in FIG. 8), unless otherwise specified.
[0026] The axial center of the cylindrical portion 25 is arranged in the vertical direction. A mating outer conductor of a mating shield terminal (not shown) is inserted into the inside of the cylindrical portion 25 from above. A plurality of elastic contact parts 28 (only one is shown in FIG. 8) are formed on the upper part 32 of the cylindrical part 25. The elastic contact parts 28 are arranged at intervals in the circumferential direction of the cylindrical part 25. Each elastic contact part 28 is formed between the slits 29 on both sides of the cylindrical part 25 so as to be capable of being flexibly deformed. Each elastic contact part 28 protrudes inward from the cylindrical part 25 and has a contact part capable of being in contact with a mating outer conductor of a mating shield terminal. A protrusion 75 shown in FIG. 1 is formed on the front side of the upper part 32 of the cylindrical part 25 below each elastic contact part 28. The protrusion 75 is cut inward from a part of the cylindrical part 25 and has a shape that inclines backward as it goes upward. The protrusion 75 is capable of being fitted into the concave groove 74 of the dielectric 12.
[0027] As shown in Fig. 3, the lower part 31 of the tubular part 25 has an arc-shaped cross section, and is open at the rear in the closed position, and is open at the rear as well as the bottom in the open position (as shown in Fig. 3), which will be described later. As shown in Figs. 3 and 4, a pair of left and right engagement recesses 33 are formed between the lower part 31 of the tubular part 25 and the upper part 32 of the tubular part 25. Each engagement recess 33 extends along the front-rear direction and is open at the rear. A pair of left and right engagement parts 34 are formed below each engagement recess 33 in the lower part 31 of the tubular part 25. Each engagement part 34 is capable of being flexibly deformed in the left-right direction (inward and outward directions). Each engagement part 34 has an open end 35 along the up-down direction at its rear end.
[0028] The extension portion 26 is formed so as to bend and extend rearward from the lower rear end of the upper portion 32 of the tubular portion 25. The extension portion 26 is disposed above the open ends 35 of the engagement portions 34. As shown in FIG. 8, the upper portion 32 of the tubular portion 25 and the extension portion 26 are L-shaped in a side view, and are continuously connected via an inner corner portion 36 which is an inner corner portion of the L shape. The inner corner portion 36 has an intersection angle α (0°<α<180°, preferably 80°<α<100°, particularly preferably α=90°) in a side view between the outer surface (upper surface) of the extension portion 26 and the outer surface (rear surface) of the tubular portion 25.
[0029] As shown in Fig. 3, the interposed portion 27 is integrally connected to the lower end of the lower portion 31 of the tubular portion 25. The interposed portion 27 has an opposing extension portion 37 that bends and extends rearward from the lower end of the lower portion 31 in the closed position shown in Fig. 8. The opposing extension portion 37 is disposed below the extension portion 26 and opposed to the extension portion 26. The dielectric main body portion 17 is disposed so as to be sandwiched between the opposing extension portion 37 and the extension portion 26.
[0030] The opposing extension portion 37 is disposed below the open ends 35 of the respective engagement portions 34. The opposing extension portion 37 and the tubular portion 25 are L-shaped in a side view, and are continuously connected to each other via an outer corner portion 38, which is the outer corner portion of the L shape. The outer corner portion 38 is formed between the outer surface (lower surface) of the opposing extension portion 37 and the outer surface (front surface) of the tubular portion 25.
[0031] 3 and 4, the interposed portion 27 has a pair of side walls 39 that are bent and rise from the left and right side ends of the front-rear intermediate portion of the opposing extension portion 37. As shown in Fig. 8, the front end of each side wall portion 39 is disposed in the up-down direction so as to face and be parallel to the open end 35 of each engagement portion 34 in the closed position. A gap G1 is formed between the left and right side ends of the extension portion 26 and the upper ends of each side wall portion 39 and each lateral extension portion 41 described later.
[0032] Further, the interposition portion 27 has a pair of lateral extension portions 41 extending rearward from the rear end of each side wall portion 39. As shown in Figs. 3 and 4, each lateral extension portion 41 has a pair of inclined portions 42 inclined so as to widen toward the rear, and a pair of electric wire holding portions 43 extending at a constant interval in the left-right direction from each inclined portion 42 to the rear end of the interposition portion 27. Similarly, as shown in Fig. 8, the extension portion 26 and the opposing extension portion 37 also have a pair of inclined portions 42 inclined so as to widen toward the rear, and a pair of electric wire holding portions 43 extending at a constant interval in the up-down direction from each inclined portion 42 to the rear end of the interposition portion 27.
[0033] Each electric wire holding portion 43 has an arc-shaped cross section and is disposed along the outer circumferential surface of the shield portion 93 of the shielded electric wire 90. As shown in Fig. 9, the electric wire holding portions 43 can be connected to each other to form an imaginary circle C1. In each electric wire holding portion 43, the extension portion 26, the opposing extension portion 37, and each lateral extension portion 41 are flexed and deformed, thereby changing the inner diameter of the imaginary circle C1. The diameter of this imaginary circle C1 is reduced during the crimping process of the crimping portion 59, which will be described later.
[0034] As shown in Fig. 4, each wire holding portion 43 has rectangular cross-sectional locking holes 44 formed therethrough at circumferential intervals. The shield portion 93 of the shielded wire 90 can be locked by being wedged into each locking hole 44. A locking hole 45 having a rectangular cross-section is formed therethrough in the wire holding portion 43 of the opposing extension portion 37. The locking hole 45 is formed with an opening diameter larger than that of the locking hole 44, rearward of the locking hole 44. A locking piece 56 shown in Fig. 6 fits into the locking hole 45 to be locked.
[0035] The outer corner 38 described above is formed in a rotation center 46 that connects the intervening portion 27 and the tube portion 25, as shown in FIG. 1. The rotation center 46 is in the form of a flexible belt, as shown in FIGS. 3 and 4. The intervening portion 27 is rotatable about the rotation center 46 with respect to the tube portion 25 between an open position (the state shown in FIGS. 3, 4, and 7) and a closed position (the state shown in FIGS. 1, 8, 9 to 11). In the open position, the intervening portion 27 is disposed along the up-down direction, and the lower portions of the tube portion 25 and the extending portion 26 are opened. In the closed position, the intervening portion 27 is disposed along the front-rear direction, and the lower portions of the tube portion 25 and the extending portion 26 are blocked by the opposing extending portion 37.
[0036] Next, the mounting member 24 will be described. The mounting member 24 has a shape extending in the front-rear direction, and as shown in Fig. 1 and Fig. 11, is attached to the connecting member 23 from above and disposed so as to cover the outer surface of the extending portion 26. The mounting member 24 has a base portion 47, a pair of barrels 48, a pair of sheath barrels 49, and a pair of shielding portions 51, as shown in Fig. 5 and Fig. 6.
[0037] The base 47 is in the form of a strip extending in the front-rear direction. A flat plane portion 52 is formed at the front of the base 47. As shown in FIG. 11, a protruding piece 53 is formed by bending the plane portion 52. The protruding piece 53 is fitted into a recess of a housing (not shown) that accommodates the shield terminal 10, and serves to position the shield terminal 10 in the housing. An opening 54 is formed in the plane portion 52 due to the protruding piece 53 being bent up. The protruding piece 53 is arranged along the left-right direction and is shaped to rise from the front end of the opening 54. A reinforcing portion 76 is formed at the front side of the lower end of the protruding piece 53, which is hammered out from the opening 54 side.
[0038] A rear base 55 is formed at the rear of the base 47. Each barrel 48 is in the form of a plate protruding downward from both left and right ends of the front of the rear base 55. As shown in Fig. 1, each barrel 48 is crimped to the shield portion 93 of the shielded electric wire 90 with the electric wire holding portion 43 sandwiched therebetween. The shield portion 93 is electrically connected to the outer conductor 13 in a state where it is sandwiched between the electric wire holding portion 43 and the sleeve 95.
[0039] Each sheath barrel 49 is formed in the shape of a plate protruding downward from both the left and right ends of the rear part of the rear base part 55. Each sheath barrel 49 is crimped to the sheath 94 of the shielded electric wire 90. A recess 57 and a protrusion 58 are formed at the tip of each sheath barrel 49. When each sheath barrel 49 is connected to the sheath 94 of the shielded electric wire 90, each sheath barrel 49 and the rear base part 55 are formed in a cylindrical shape, and the recess 57 and the protrusion 58 are engaged with each other to be locked. Note that, at the rear part of the mounting member 24, each barrel 48, each sheath barrel 49, and the rear base part 55 constitute the crimping part 59 of the present disclosure.
[0040] As shown in FIG. 5, each shielding portion 51 is formed in the shape of a plate protruding downward from the left and right side ends of the flat portion 52. As shown in FIG. 11, each shielding portion 51 covers the outer surface of each side wall portion 39 and each side extension portion 41, and closes the gap G1 (see FIG. 8) formed between the extension portion 26 and the intermediate portion 27. The rear end of each shielding portion 51 is connected to each barrel 48. A pair of holding pieces 61 having a rectangular shape in a side view is formed on the front side of each shielding portion 51. Each holding piece 61 protrudes downward farther than the rear side of each shielding portion 51, and closes the gap G2 (see FIG. 8 and FIG. 11) formed between the open end 35 of each engagement portion 34 and the front end of each side wall portion 39.
[0041] <Assembly method and function of shield terminal> First, in the connection member 23, the interposed portion 27 is opened to the open position relative to the cylindrical portion 25 (see Figs. 3 and 4). In this state, the dielectric 12 is inserted into the inside of the connection member 23 from below as shown in the figure (actually from above). During the insertion process of the dielectric 12, the protrusion 75 is fitted into the recessed groove 74 in a positioned state (see Fig. 1). Furthermore, when the insertion of the dielectric 12 is completed, the extension portion 26 comes into contact with the engaged portions 21 on the upper surface of the dielectric main body 17 in a positioned state, and the insertion operation of the dielectric 12 is stopped.
[0042] The bottom wall 19 of the dielectric body 17 is opened, and the inner conductor 11 is inserted into the inner conductor accommodating space S1 of the dielectric 12 from below (actually from above). The inner conductor 11 is connected in advance to an end portion of the shielded electric wire 90. When the inner conductor 11 is inserted into the inside of the dielectric 12, the mating inner conductor connecting portion 15 is disposed inside the insertion portion 16, and the core wire crimping portion 14 is disposed inside the dielectric body 17. Next, the interposed portion 27 is rotated about the rotation center portion 46, and closed in the closed position relative to the tube portion 25 (see FIGS. 8 to 10).
[0043] The mounting member 24 is placed on the outside of the connection member 23, and in a state where the crimping portion 59 of the mounting member 24 is set in a crimping die (not shown), each barrel 48 is pressed by a movable die (not shown) and deformed inward. Each electric wire holding portion 43 is also pressed by each barrel 48 and deformed inward. As a result, each barrel 48 is crimped to the shield portion 93 of the shielded electric wire 90 via each electric wire holding portion 43. As a result, the outer conductor 13 is electrically connected to the shield portion 93 of the shielded electric wire 90 (see Figs. 1 and 11). Moreover, the mounting member 24 is held to the connection member 23 by each barrel 48. Furthermore, the intermediate portion 27 is held in a closed position with respect to the tube portion 25 by each barrel 48.
[0044] Each sheath barrel 49 is directly crimped and mechanically connected to the sheath 94 of the shielded electric wire 90 simultaneously with or before or after the crimping process of each barrel 48. Note that the movable die (not shown) is disposed on the side where each barrel 48 and each sheath barrel 49 are located, so that interference with the tubular portion 25 can be easily avoided.
[0045] In the state where the mounting member 24 is mounted on the connection member 23 as described above, the gap G1 formed between the extension portion 26 and the intervening portion 27 is covered by the shielding portion 51 and the crimping portion 59, and the gap G2 formed between the tubular portion 25 and the intervening portion 27 is also covered by the shielding portion 51. In addition, since the extension portion 26 and the tubular portion 25 are continuously formed in an L-shape in a side view via the inner corner portion 36, no break occurs at the position of the inner corner portion 36 (see FIG. 1). Therefore, according to the first embodiment, the leakage of noise from the shield terminal 10 and the intrusion of noise into the shield terminal 10 are suppressed, and the shielding performance can be improved. In particular, since the crimping portion 59 is formed on the mounting member 24 and the tubular portion 25 is formed on the connection member 23 other than the mounting member 24, the degree of freedom in molding the crimping portion 59 and the tubular portion 25 can be increased. For this reason, for example, it is possible to arrange each barrel 48 of the crimping portion 59 and the tubular portion 25 close to each other in the front-rear direction.
[0046] <Embodiment 2> As shown in Fig. 12, the shield terminal 10A of the second embodiment is connected to a shield electric wire 90A having a smaller diameter than the shield electric wire 90 of the first embodiment. The shield electric wire 90A does not include anything corresponding to the sleeve 95 of the first embodiment. The shield terminal 10A of the second embodiment is different from the first embodiment in that a second barrel 62 is formed in the crimping portion 59A of the mounting member 24A and that each inclined portion 42 of the connection member 23 is inclined so as to narrow toward each electric wire holding portion 43. Since the other points are the same as those of the first embodiment, the same reference numerals are used for the same or corresponding parts as those of the first embodiment, and duplicated explanations will be omitted.
[0047] The second barrels 62 of the crimping portion 59A are formed in pairs between each of the sheath barrels 49 and each of the barrels 48. Like the sheath barrels 49 and the barrels 48, each of the second barrels 62 has an open barrel shape and protrudes from both the left and right ends of the rear base portion 55.
[0048] Each second barrel 62 is directly crimped and electrically connected to the shield portion 93 of the shielded electric wire 90A behind the connecting member 23. The diameter of the cylindrical shape of each second barrel 62, more specifically, the diameter of the cylindrical shape formed by each second barrel 62 and the rear base portion 55, is smaller than the diameter of the cylindrical shapes of the barrel 48 and the sheath barrel 49.
[0049] According to the second embodiment, since each second barrel 62 is directly crimped to the shield portion 93 of the shielded electric wire 90A, the connected state between the shielded electric wire 90A and the outer conductor 13 can be stably maintained.
[0050] [Another embodiment of the present disclosure] The embodiments disclosed herein should be considered in all respects as illustrative and not restrictive. In the first and second embodiments, the connecting member is formed with a pair of side extending portions. However, in other embodiments, at least one of the pair of side extending portions may be omitted from the connecting member. In the case of the first and second embodiments, the connecting member is formed with a shielding portion. However, in other embodiments, the shielding portion may be omitted from the connecting member. In the first and second embodiments, the sheath barrel is formed on the mounting member. However, in other embodiments, the sheath barrel may be omitted from the mounting member. For example, the sheath barrel may be formed on the connecting member. In the first and second embodiments, the inner corner connects the cylindrical portion and the extension portion at a right angle. However, in other embodiments, the inner corner may connect the cylindrical portion and the extension portion in a curved shape. [Explanation of symbols]
[0051] 10,10A…Shield terminal 11...Inner conductor 12...Dielectric 13...Outer conductor 14...Core crimping section 15…Connecting part of inner conductor of mating part 16…Insertion part 17...Dielectric body 18…Hinge part 19…Lower wall 21...Engaged portion 22...Slope 23...Connecting member 24, 24A…Mounting parts 25...Cylinder part 26...Extension part 27…Intervening part 28...Elastic contact part 29...Slit 31…Lower 32…Upper 33...Engagement recess 34...Engagement part 35...Open end 36…Inner corner 37…Opposing extension part 38…Outer corner 39…Side wall 41...Lateral extension part 42…Slope part 43...Electric wire holding part 44…Stop hole 45…Latching hole 46…Pivot center 47...Base 48…Barrel 49…Sheath barrel 51...Shielding part 52...Plane part 53...Protruding piece 54…Opening 55…posterior base 56…Latching piece 57…Recess 58…Convex part 59,59A… Crimping section 61...Holding piece 62…2nd barrel 71…Lower part 72…Upper part 73…Step 74…Groove 75...protrusion 76…Reinforcement 90,90A...Shielded wire 91…Core wire 92…Covering part 93…Shield section 94…Sheath 95…Sleeve α…Intersection angle C1: Virtual circle G1…Gap G2…Gap S1: Inner conductor accommodation space
Claims
1. A shield terminal having an outer conductor connected to a shield portion of a shielded electric wire, the outer conductor has a connection member and an attachment member separate from the connection member, The connection member has a cylindrical portion and an extension portion extending in a direction intersecting the cylindrical portion, the mounting member has a crimping portion that covers an outer surface of the extension portion and is crimped to the shielded wire with the extension portion sandwiched therebetween, The extension portion and the cylindrical portion are L-shaped in a side view and are continuous with each other via an inner angle formed between the outer surfaces of the extension portion and the cylindrical portion, the connecting member has an intermediate portion that is bent and connected to the cylindrical portion and is sandwiched between the shielded wire and the crimping portion, in addition to the extending portion, A shielded terminal, wherein the mounting member has a shielding portion that closes a gap formed between the extension portion and the intermediate portion and also closes a gap formed between the tubular portion and the intermediate portion.
2. the crimping portion has a base portion in contact with an outer surface of the extension portion, and a barrel protruding from the base portion and surrounding the shielded electric wire, The shield terminal according to claim 1 , wherein a side on which the barrel is located with respect to the base and a side on which the tube portion is located with respect to the base are opposite each other.
3. An insulating dielectric is disposed between the outer conductor and the inner conductor, The dielectric body has an insertion portion disposed inside the cylindrical portion, and a dielectric body portion extending in a direction intersecting the insertion portion and disposed along the extension portion, the connecting member has an opposing extension portion at a position opposing the extension portion, The opposing extension portion and the cylindrical portion are L-shaped in a side view and are continuous with each other via an outer corner portion formed between the outer surfaces of the opposing extension portion and the cylindrical portion, 3. A shield terminal as described in claim 1 or claim 2, wherein the opposing extension portion is rotatable between an open position and a closed position around the outer corner portion relative to the cylindrical portion, the inside of the cylindrical portion being open in the open position, and the dielectric main body portion being sandwiched between the opposing extension portion and the cylindrical portion in the closed position.
Citation Information
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