Shield terminal

Abstract

To suppress variations in signal transmission performance in a shied terminal to increase the signal transmission performance.SOLUTION: A first outer conductor 12 of a shield terminal 1 has a rear side bottom plate 12K, a pair of left and right first side plates 12E extending upwardly from the rear side bottom plate 12K, and a fist opening 12G formed between top edges of the side plates 12E. A second outer conductor 13 of the shield terminal 1 has a cover part 13D covering the first opening 12G, and a pair of left and right second side plates 13E extending downwardly from the cover part 13D. The second side plates 13E each have a curved part 13M arranged above the rear side bottom 12K and between the pair of first side plate 12E and outwardly curved from an upper edge to a lower edge in the horizontal direction. Lower edge parts of the curved parts 13M are in contact with a top face of the rear side bottom 12K while butted against each other. Middle parts of the curved part 13M in the extending direction of the second side plate 13E are in contact with inner faces of the first side plate 12E, respectively.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to a shield terminal. [Background technology]

[0002] Patent Document 1 discloses a shield terminal in which a metallic outer conductor and a metallic cover member are attached to the end of a shielded electric wire. The outer conductor has a pair of left and right side walls. The cover member has a pair of left and right side plates that are inserted between the side walls. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-157974 Summary of the Invention [Problem to be solved by the invention]

[0004] In the case of the configuration of Patent Document 1, in order to make it easier to insert each side plate between each side wall, it is preferable to set the dimension between the outsides of a pair of side plate parts (the distance between the left and right outer surfaces of each side plate part) smaller than the dimension between the insides of each side wall part (the distance between the left and right inner surfaces of each side wall part). However, if the dimensions are set in this way, there is a possibility that due to assembly variations, etc., shield terminals may be manufactured in which the side wall part and the side plate part are in contact and shield terminals in which they are not in contact, which raises concerns about variations in the signal transmission performance of the shield terminals.

[0005] In view of the above, an object of the present disclosure is to provide a shield terminal capable of suppressing variations in signal transmission performance and improving the signal transmission performance. [Means for solving the problem]

[0006] The shield terminal of the present disclosure comprises: a first outer conductor and a second outer conductor that are connectable to each other; the first outer conductor has a bottom plate portion, a pair of left and right first side plate portions extending upward from the bottom plate portion, and an opening portion formed between upper ends of the first side plate portions, the second outer conductor has a cover portion that covers the opening, and a pair of second side plate portions that extend downward from the cover portion, Each of the second side plate portions has a curved portion disposed above the bottom plate portion and between the first side plate portions, the curved portion being curved outward in the left-right direction from an upper end to a lower end, The lower ends of the curved portions are abutted against each other and contact the upper surface of the bottom plate portion, An intermediate portion of each of the curved portions in the extending direction of each of the second side plate portions is in contact with the opposing inner surfaces of each of the first side plate portions. Effect of the Invention

[0007] According to the present disclosure, it is possible to reduce variation in the signal transmission performance of a shield terminal and improve the signal transmission performance. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a side cross-sectional view of a shield terminal according to a first embodiment. [Diagram 2] FIG. 2 is a perspective view showing the first outer conductor. [Diagram 3] FIG. 3 is a perspective view showing the second outer conductor to which the second dielectric is attached. [Figure 4] FIG. 4 is a cross-sectional view showing a state in which the second side plate portion of the second dielectric is inserted between the first side plate portions of the first outer conductor. [Diagram 5] FIG. 5 is a cross-sectional view taken along line AA in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line BB in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. (1) A first outer conductor and a second outer conductor that are connectable to each other, the first outer conductor has a bottom plate portion, a pair of left and right first side plate portions extending upward from the bottom plate portion, and an opening portion formed between upper ends of the first side plate portions, the second outer conductor has a cover portion that covers the opening, and a pair of second side plate portions that extend downward from the cover portion, Each of the second side plate portions has a curved portion disposed above the bottom plate portion and between the first side plate portions, the curved portion being curved outward in the left-right direction from an upper end to a lower end, The lower ends of the curved portions are abutted against each other and contact the upper surface of the bottom plate portion, A shield terminal, wherein an intermediate portion of each of the curved portions in an extending direction of each of the second side plate portions is in contact with an opposing inner surface of each of the first side plate portions.

[0010] The shield terminal (1) enables the second outer conductor to be brought into elastic contact with the first outer conductor by the curved portion, so that the first outer conductor and the second outer conductor can be reliably brought into contact and maintained in contact with each other regardless of dimensional variations or assembly variations of the components.

[0011] (2) A shielded terminal as described in (1), wherein each of the curved portions forms an air layer between at least one of the central conductors of the shielded wire arranged between a dielectric arranged between a pair of the second side plate portions.

[0012] The shield terminal (2) can increase the impedance at the curved portion by forming an air layer, so that it is easy to adjust the impedance at the curved portion.

[0013] (3) A lower end portion of each of the second side plate portions extends in the front-rear direction, A protruding portion is provided at a part of a lower end portion of each of the second side plate portions in the front-rear direction, the protruding portion protruding downward more than the other part excluding the part, The shield terminal according to (1) or (2), wherein the protrusions are abutted against each other and positioned at the lower end of the curved portion.

[0014] In the shield terminal (3), a protrusion is provided at a part of the lower end portion extending in the front-rear direction of each second side plate portion, which protrudes downward more than the remaining parts except for a part, so that when the lower ends of the pair of second side plate portions are butted together using a crimping machine or the like, the pressing force of the crimping machine tends to concentrate on the protrusions, forming a curved part at the position (i.e., part) of the protrusion. Therefore, by changing the position of a part of the lower end portion of the second side plate portion, it is easy to set the position of the curved part to a desired position in the front-rear direction.

[0015] [Details of the embodiment of the present disclosure] <Embodiment 1> A first embodiment of the shield terminal 1 of the present disclosure will be described with reference to Figs. 1 to 6. In the drawings, "front", "rear", "upper", "lower", "right side", and "left side" are represented by "F", "B", "U", "D", "R", and "L", respectively. Note that the directional references are defined for convenience, and do not necessarily coincide with the directions in a state in which a connector including the shield terminal 1 is mounted on a vehicle or the like. For example, the up-down direction is not limited to the direction of gravity.

[0016] [Shield terminal configuration] As shown in Fig. 1, the shield terminal 1 includes an inner conductor 10, a first dielectric 11, a first outer conductor 12, a second outer conductor 13, a second dielectric 14 which is a dielectric, and a shielded wire 70. The inner conductor 10 is formed by pressing a metal plate material, and has an overall elongated shape in the front-rear direction. The inner conductor 10 includes a cylindrical main body 10A, a pair of elastic contact portions 10B extending forward in a cantilever shape from the main body 10A, and an open barrel-shaped crimping portion 10C protruding rearward from the main body 10A.

[0017] The first dielectric 11 is made of synthetic resin and has a cylindrical shape with its axis oriented in the front-rear direction. The first dielectric 11 accommodates the main body 10A and the elastic contact portion 10B of the inner conductor 10. The crimping portion 10C protrudes rearward beyond the rear end surface of the first dielectric 11.

[0018] The first outer conductor 12 is formed by pressing a metal plate material, and has an overall elongated shape in the front-rear direction. As shown in Fig. 2, the first outer conductor 12 has a tubular shielding part 12A, a connection shielding part 12B, and a crimping shielding part 12C. The tubular shielding part 12A constitutes the front end part of the first outer conductor 12, and has a cylindrical shape with its axis directed in the front-rear direction. The main body part 10A and the elastic contact part 10B of the inner conductor 10, and the entire first dielectric 11 are housed within the tubular shielding part 12A (see Fig. 1).

[0019] The connecting shield part 12B has one front wall part 12D, a pair of first side plate parts 12E connected to both left and right end edges of the front wall part 12D and formed into a symmetrical flat plate shape, and a pair of stabilizers 12F that are asymmetrical and have different lengths in the front-rear direction. The front wall part 12D is connected to a lower half region at the rear end edge of the cylindrical shield part 12A and protrudes from the outer periphery of the cylindrical shield part 12A in a flange shape. The lower end part of the front wall part 12D extends in the left-right direction (not shown). Both left and right side edges of the front wall part 12D extend in the up-down direction.

[0020] The pair of first side plate portions 12E are arranged parallel to each other and spaced apart in the left-right direction with their plate thicknesses facing the left-right direction. The front end edges of each first side plate portion 12E are connected to both left-right side edges of the front wall portion 12D. The stabilizers 12F are formed by protruding upward from the front end portions at the upper ends of each first side plate portion 12E and folding back outward in the left-right direction.

[0021] A connection space R defined by a pair of first side plate portions 12E is formed inside the connecting shield portion 12B in the left-right direction. The crimping portion 10C of the inner conductor 10 is housed in the connection space R (see FIG. 1). The upper surface of the connecting shield portion 12B is formed as a first opening 12G that is an opening that opens the connection space R upward and outside of the connecting shield portion 12B. The first opening 12G is formed between the upper ends of the pair of first side plate portions 12E. The first opening 12G is open over the entire area of ​​the connecting shield portion 12B in the front-rear direction.

[0022] The lower surface of the connecting shield part 12B is a second opening 12H that opens the connection space R downward and outside of the connecting shield part 12B. The connecting shield part 12B is formed in a form that is penetrated in the up-down direction by the connection space R, the first opening 12G, and the second opening 12H. The opening range of the second opening 12H in the front-rear direction is a region from a position behind the front end of the connecting shield part 12B to a position ahead of the rear end of the connecting shield part 12B. In other words, the opening dimension of the second opening 12H in the front-rear direction is smaller than the opening dimension of the first opening 12G in the front-rear direction.

[0023] A front bottom plate portion 12J and a rear bottom plate portion 12K, which is a bottom plate portion, are provided on the lower surface of the connection shield portion 12B. The front bottom plate portion 12J is formed so as to extend in the left-right direction with the plate thickness direction facing the up-down direction. The front bottom plate portion 12J forms the front edge of the opening edge of the second opening portion 12H. The front end edge of the front bottom plate portion 12J is connected to the lower edge of the front wall portion 12D. Both ends of the front bottom plate portion 12J in the left-right direction are connected to the front end portions at the lower edges of the first side plate portions 12E. The front bottom plate portion 12J is formed at a right angle to each of the first side plate portions 12E. The front bottom plate portion 12J is formed so as to bridge between a pair of first side plate portions 12E (not shown).

[0024] The rear bottom plate portion 12K is formed to extend in the left-right direction with its plate thickness direction facing the up-down direction, similar to the front bottom plate portion 12J. The rear bottom plate portion 12K forms the rear edge of the opening edge of the second opening portion 12H. Both left-right ends of the rear bottom plate portion 12K are connected at right angles to the rear ends of the lower edges of the first side plate portions 12E. The rear bottom plate portion 12K is in a form that is bridged between the pair of first side plate portions 12E. In other words, the pair of first side plate portions 12E extend upward from the rear bottom plate portion 12K. The rear bottom plate portion 12K also has a function of abutting the protruding portion 13H of the second outer conductor 13 described later. The distance between the rear end edge of the front bottom plate portion 12J and the front end edge of the rear bottom plate portion 12K is the opening dimension in the front-rear direction of the second opening portion 12H (see FIG. 1).

[0025] The crimping shield part 12C includes a bottom wall part 12L, a pair of symmetrical support walls 12M, a pair of left and right shield crimping pieces 12N, and a pair of left and right sheath crimping pieces 12P. The bottom wall part 12L is connected to the rear end of the rear bottom plate part 12K and extends rearward from the rear bottom plate part 12K. The support wall part 12M is connected to the rear end edge of each first side plate part 12E and extends rearward from each first side plate part 12E. The lower edge of the support wall part 12M is connected to the front end part of both left and right side edges of the bottom wall part 12L. The rear end part of each first side plate part 12E, the rear bottom plate part 12K, the front end part of the bottom wall part 12L, and each support wall part 12M form a box shape that is open both upward and in the front-rear direction.

[0026] The shield crimping pieces 12N extend upward from the front-rear center portions of both left and right side edges of the bottom wall portion 12L. The sheath crimping pieces 12P extend upward from the front-rear rear ends of both left and right side edges of the bottom wall portion 12L.

[0027] The second outer conductor 13 is formed by pressing a metal plate material. As shown in Fig. 3, the second outer conductor 13 has a connection portion surrounding portion 13A that is open on the bottom surface and on both the front and rear surfaces, a shield surrounding portion 13B, and a connection piece portion 13C.

[0028] In the second outer conductor 13 before being assembled to the first outer conductor 12, the connection part surrounding portion 13A has a cover portion 13D whose plate thickness direction faces the up-down direction, and a pair of symmetrical second side plate portions 13E spaced apart from each other and extending downward from both left and right side edges of the cover portion 13D. The lower end portion of each second side plate portion 13E extends in the front-rear direction. A locking hole 13F is formed in each second side plate portion 13E, penetrating in the plate thickness direction. A recess 13G recessed toward the cover portion 13D is formed in the front-rear direction center portion of the lower end portion (the edge protruding from the cover portion 13D).

[0029] A protrusion 13H that protrudes downward (away from the covering portion 13D) is formed at the rear end (i.e., a part of the lower end of the second side plate portion 13E in the front-to-rear direction) of the lower end (edge ​​protruding from the covering portion 13D) of each second side plate portion 13E. The protrusion 13H protrudes downward further than a part of the lower end (edge ​​protruding from the covering portion 13D) of each second side plate portion 13E excluding the rear end (i.e., the other part excluding a part of the second side plate portion 13E).

[0030] The dimension in the front-rear direction of each second side plate portion 13E is smaller than the opening dimension in the front-rear direction of the first opening portion 12G (not shown). The opening dimension in the front-rear direction of the first opening portion 12G is the dimension between the rear end of the cylindrical shield portion 12A and the front end of the shield crimping piece 12N (see FIG. 1). The dimension in the front-rear direction of each second side plate portion 13E is larger than the opening dimension in the front-rear direction of the second opening portion 12H (not shown). The opening dimension in the front-rear direction of the second opening portion 12H is the dimension between the rear end of the front bottom plate portion 12J and the front end of the rear bottom plate portion 12K (see FIG. 1).

[0031] The shielding enclosure 13B is connected to the rear end of the cover 13D and extends rearward from the connection enclosure 13A. In the second outer conductor 13 before being assembled to the first outer conductor 12, the shielding enclosure 13B has an open barrel shape including a base 13J connected to the cover 13D and a pair of crimping portions 13K extending from both left and right side edges of the base 13J. The connection piece 13C is arc-shaped, has its inner surface facing downward and its axis facing the front-rear direction, and is disposed in front of and above the cover 13D. The rear end of the connection piece 13C is connected to a connecting portion 13L extending upward from the front edge of the cover 13D.

[0032] The second dielectric 14 is made of synthetic resin and has the same shape as the connection portion surrounding portion 13A. As shown in FIG. 4, the second dielectric 14 has a horizontal plate-like upper surface portion 14A and a pair of left and right side portions 14B extending downward from both left and right edges of the upper surface portion 14A. The upper surface portion 14A is superimposed on the lower surface of the cover portion 13D, and each side portion 14B is superimposed on the inner surface of each second side plate portion 13E in the left and right direction. The second dielectric 14 is maintained in a state of being assembled to the second outer conductor 13 by engaging the locking protrusions 14C provided on the outer surfaces of the side portions 14B with the locking holes 13F of the second outer conductor 13.

[0033] 1, the shielded electric wire 70 is a well-known electric wire having a central conductor 71, a cylindrical insulator 72 surrounding the central conductor 71, a cylindrical shield layer 73 made of a braided wire or the like arranged along the outer periphery of the cylindrical insulator 72, and a sheath 74 surrounding the shield layer 73. At the front end of the shielded electric wire 70, the sheath 74 is removed to expose the front end of the shield layer 73 in a state where it is overlapped on the outer periphery of the cylindrical insulator 72, and the central conductor 71 protrudes forward from the front end of the cylindrical insulator 72 in an exposed state.

[0034] [An example of how to attach a shield terminal] Next, an example of the procedure for assembling the shield terminal 1 will be described. The first dielectric 11 surrounding the inner conductor 10 and the first outer conductor 12 are assembled. As shown in FIG. 1, in the assembled state of the first dielectric 11 and the first outer conductor 12, the inner conductor 10 is accommodated in the cylindrical shielding portion 12A, and the crimping portion 10C of the inner conductor 10 protrudes rearward from the first dielectric 11 and is accommodated in the connection space R of the first outer conductor 12. Before or after the assembly process of the inner conductor 10 and the first outer conductor 12, the front end of the shielded electric wire 70 and the crimping shielding portion 12C of the first outer conductor 12 are connected. At this time, the shield crimping piece 12N is crimped to the outer periphery of the shield layer 73 of the shielded electric wire 70, and the sheath crimping piece 12P is crimped to the outer periphery of the sheath 74.

[0035] In a state where the shielded electric wire 70 and the first outer conductor 12 are connected, the central conductor 71 protruding forward from the cylindrical insulator 72 is accommodated in the connection space R. In the connection space R, the crimping portion 10C of the inner conductor 10 is crimped by being tightened against the central conductor 71. The crimping process of the central conductor 71 and the crimping portion 10C is performed by inserting an anvil (not shown) and a crimper (not shown) of a crimping machine (not shown) into the connection space R from the first opening 12G and the second opening 12H, respectively.

[0036] After assembling the first dielectric 11, the inner conductor 10, and the shielded wire 70 to the first outer conductor 12, the second outer conductor 13 to which the second dielectric 14 is assembled is assembled to the first outer conductor 12. The first outer conductor 12 and the second outer conductor 13 can be connected to each other. When assembling the second outer conductor 13 to the first outer conductor 12, as shown in FIG. 4, the second side plate portions 13E are in a position extending downward from the covering portion 13D, and the connection portion surrounding portion 13A is inserted into the first opening 12G from above the first outer conductor 12. Then, the protruding portion 13H of each second side plate portion 13E is abutted against the upper surface of the rear bottom plate portion 12K. At this time, the dimension between the outer sides of the pair of second side plate portions 13E in the left-right direction is smaller than the dimension between the inner sides of the pair of first side plate portions 12E in the left-right direction. At this time, the second dielectric 14 is adjacent to the front of the cylindrical insulator 72 (see FIG. 1).

[0037] Next, in the connection space R, the second side plate portion 13E of the second outer conductor 13 and the side surface portion 14B of the second dielectric 14 are pressed into a shape surrounding the connection portion between the inner conductor 10 and the central conductor 71. This press working is performed by inserting a die of a crimping machine (not shown) into the connection space R from each of the first opening 12G and the second opening 12H to press the connection portion surrounding portion 13A from above and below.

[0038] 5, when the pressing process is performed by the crimping machine, the second side plate portions 13E are deformed so that their lower ends approach each other inward in the left-right direction. Specifically, in the second side plate portions 13E, the protruding portions 13H approach each other inward in the left-right direction while contacting the upper surface of the rear bottom plate portion 12K, and then the lower end edges of the protruding portions 13H butt against each other.

[0039] The rear end of each second side plate portion 13E where the protruding portion 13H is formed in the front-rear direction is deformed so that the vertical center portion bulges outward in the left-right direction and elastically contacts the inner surface in the left-right direction of the pair of first side plate portions 12E. Thus, a curved portion 13M that is disposed above the rear bottom plate portion 12K and between each first side plate portion 12E and curves outward in the left-right direction from the upper end to the lower end is formed at the rear end of each second side plate portion 13E. In other words, each second side plate portion 13E has a curved portion 13M. The curved portion 13M is formed at the rear end of each second side plate portion 13E.

[0040] A protruding portion 13H is located at the lower end of each curved portion 13M. The lower ends (lower edges of the protruding portions 13H) of the curved portions 13M are in elastic contact with the upper surface of the rear bottom plate portion 12K while being butted against each other. The middle portions of the curved portions 13M in the extending direction (up-down direction) of the second side plate portions 13E are in elastic contact with the inner surfaces (opposing inner surfaces) of the first side plate portions 12E in the left-right direction. The covering portion 13D covers the first opening 12G so as to block it from above.

[0041] Except for a portion of the second side plate portion 13E in the front-to-rear direction where the protrusion 13H is provided, the other portion (the portion forward of the protrusion 13H on the second side plate portion 13E) is deformed so as to incline downward and inward in the left-right direction by the press processing using the crimping machine (see Figure 6).

[0042] The side surface portion 14B of the second dielectric 14 is pressed inward in the left-right direction by the second side plate portion 13E. As a result, the side surface portion 14B is deformed such that the lower ends approach each other inward in the left-right direction over the entire front-rear direction, and the lower ends are butted against each other. As a result, the central conductor 71 protruding forward from the cylindrical insulator 72 is surrounded by the second dielectric 14.

[0043] Each curved portion 13M is spaced apart from a side surface portion 14B of the second dielectric 14 disposed between a pair of second side plate portions 13E (see FIG. 5). An air layer 13N is formed between an inner surface in the left-right direction of each curved portion 13M and an outer surface in the left-right direction of each side surface portion 14B (see FIG. 5).

[0044] The shielding surrounding portion 13B of the second outer conductor 13 surrounds the shielding crimping piece 12N and the bottom wall portion 12L which are crimped to the outer periphery of the shielding layer 73, and is crimped and attached to the outer periphery of the shielding crimping piece 12N and the bottom wall portion 12L (see FIG. 1). The connecting piece portion 13C is in elastic contact from above with the outer periphery of the rear end portion of the tubular shielding portion 12A (see FIG. 1).

[0045] Next, the operation of the first embodiment will be described.

[0046] The shield terminal 1 includes a first outer conductor 12 and a second outer conductor 13 that can be connected to each other. The first outer conductor 12 includes a rear bottom plate portion 12K, a pair of left and right first side plate portions 12E extending upward from the rear bottom plate portion 12K, and a first opening 12G formed between the upper ends of the first side plate portions 12E. The second outer conductor 13 includes a cover portion 13D that covers the first opening 12G, and a pair of left and right second side plate portions 13E extending downward from the cover portion 13D. Each second side plate portion 13E includes a curved portion 13M that is disposed above the rear bottom plate portion 12K and between the first side plate portions 12E and curves outward in the left-right direction from the upper end to the lower end. The lower end portions of the curved portions 13M include a portion that contacts the upper surface of the rear bottom plate portion 12K when they are butted against each other. An intermediate portion of each curved portion 13M in the extending direction of each second side plate portion 13E has a portion that contacts the opposing inner surface of each first side plate portion 12E.

[0047] According to this configuration, the curved portion 13M allows the second outer conductor 13 to be brought into elastic contact with the first outer conductor 12, so that the contact state between the first outer conductor 12 and the second outer conductor 13 can be reliably achieved and maintained regardless of dimensional variations or assembly variations of the parts.

[0048] An air layer 13N is formed between each curved portion 13M and the second dielectric 14 disposed between the pair of second side plate portions 13E. According to this configuration, the impedance in the curved portion 13M can be increased by forming the air layer 13N, so that it is easy to adjust the impedance in the curved portion 13M.

[0049] The lower end of each second side plate portion 13E extends in the front-rear direction, and a protruding portion 13H is provided at a part of the lower end of each second side plate portion 13E in the front-rear direction, protruding downward from the other part except for a part, and each protruding portion 13H is abutted against each other and located at the lower end of the curved portion 13M. According to this configuration, a protruding portion 13H is provided at a part of the lower end extending in the front-rear direction of each second side plate portion 13E, protruding downward from the other part except for a part, so that when pressing is performed using a crimping machine to abut the lower ends of the pair of second side plate portions 13E, the pressing force of the crimping machine tends to concentrate on the protruding portions 13H, and the curved portion 13M is formed at the position (i.e., a part) of the protruding portion 13H. Therefore, by changing the position of a part of the lower end of the second side plate portion 13E, the position of the curved portion 13M can be easily set at a desired position in the front-rear direction.

[0050] <Other embodiments> The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is not limited to the embodiments disclosed herein, but is indicated by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0051] Unlike the first embodiment, a configuration may be adopted in which the second dielectric is not provided. In this case, an air layer is formed between each curved portion and the central conductor of the shielded electric wire arranged between the pair of second side plate portions. Also, a second dielectric may be provided so as to overlap a part of the curved portion in the front-rear direction. In this case, an air layer is formed between the curved portion and the dielectric arranged between the pair of second side plate portions and between the curved portion and the central conductor of the shielded electric wire arranged between the pair of second side plate portions.

[0052] Unlike embodiment 1, a protrusion may be provided at the front end of the second side plate portion, and the curved portion may be formed at the front end of the second side plate portion by contacting the protrusion with the upper surface of the front bottom plate portion and pressing it. [Explanation of symbols]

[0053] 1: Shield terminal 10: Inner conductor 10A: Main body 10B: Elastic contact part 10C: Crimping section 11: First dielectric 12: First outer conductor 12A: Cylindrical shield section 12B: Connection shield 12C: Crimping shield part 12D: Front wall 12E: 1st side plate part 12F: Stabilizer 12G: 1st opening (opening) 12H: 2nd opening 12J: Front bottom plate part 12K: Rear bottom plate part (bottom plate part) 12L:Bottom wall part 12M: Support wall part 12N: Crimp piece for shielding 12P: Crimp piece for sheath 13: Second outer conductor 13A: Enclosure for connection 13B: Shield enclosure 13C: Connection piece 13D: Covering part 13E: 2nd side plate part 13F: Locking hole 13G: Recess 13H:Protrusion 13J: Base part 13K: Crimping part 13L: Connection part 13M: Curved section 13N: Air layer 14: Second dielectric (dielectric) 14A:Top part 14B: Side part 14C: Locking protrusion 70: Shielded wire 71: Center conductor 72: Cylindrical insulator 73: Shield layer 74: Sheath R: Connection space

Claims

1. a first outer conductor and a second outer conductor that are connectable to each other; the first outer conductor has a bottom plate portion, a pair of left and right first side plate portions extending upward from the bottom plate portion, and an opening portion formed between upper ends of the first side plate portions, the second outer conductor has a cover portion that covers the opening, and a pair of second side plate portions that extend downward from the cover portion, Each of the second side plate portions has a curved portion disposed above the bottom plate portion and between the first side plate portions, the curved portion being curved outward in the left-right direction from an upper end to a lower end, The lower ends of the curved portions are abutted against each other and contact the upper surface of the bottom plate portion, A shield terminal, wherein an intermediate portion of each of the curved portions in the extending direction of each of the second side plate portions is in contact with an opposing inner surface of each of the first side plate portions.

2. The shield terminal according to claim 1 , wherein each of the curved portions forms an air layer between itself and a dielectric disposed between the pair of second side plate portions.

3. A lower end portion of each of the second side plate portions extends in a front-rear direction, a protruding portion is provided at a part of a lower end portion of each of the second side plates in the front-rear direction, the protruding portion protruding downward further than the other part excluding the part; 3. The shield terminal according to claim 1, wherein the protrusions are abutted against each other and positioned at the lower end of the curved portion.

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