Shielded Connectors

Abstract

To suppress mismatching of impedance.SOLUTION: A shield connector 1 comprises: inner conductors 50 and 69 that have shape obtained by bending a slender metal plate in a plate thickness direction, and have a first connecting portion 51 and a second connecting portion 52 extending from a bending portion 53 in directions different from each other, a dielectric bodies 31 and 66 to which the inner conductors 50 and 69 are attached, and an outer conductor 16 that surrounds the dielectric bodies 31 and 66. The dielectric bodies 31 and 66 has a first terminal storage portion 46 that stores the first connecting portion 51 so as to surround the whole circumference, and a second terminal storage portion 35 that stores the second connecting portion 52. The first terminal storage portion 46 comprises main body members 32 and 67 integrally molded with the second terminal storage portion 35, and cover members 33 and 68 assembled to the main body members 32 and 67 in a direction intersecting a longitudinal direction of the first connecting portion 51.SELECTED DRAWING: Figure 3

Description

[Technical field]

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

[0002] Patent Document 1 discloses a shielded connector including an inner conductor terminal having a bent shape and a dielectric that houses the inner conductor terminal. The inner conductor terminal is inserted into the dielectric by pressing the bent portion of the inner conductor terminal. The inner conductor terminal is formed by punching a metal plate into an L-shape. The portion of the bent portion where a pressing force is applied is perpendicular to the plate thickness direction of the inner conductor terminal. Therefore, there is no risk of the inner conductor terminal being deformed when a pressing force is applied to the bent portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-146878 A Summary of the Invention [Problem to be solved by the invention]

[0004] When the inner conductor terminal is formed by bending a metal flat plate member in the plate thickness direction, the pressing portion is in the same direction as the plate thickness direction. Therefore, there is a risk that the inner conductor terminal will be deformed by the pressing force applied to the bent portion. As a countermeasure, it is possible to form a narrow portion by cutting out a rectangular shape on both side edges of the inner conductor terminal in the width direction, and to press the step portion at the front end of the narrow portion. However, in this case, there is a concern that an impedance mismatch will occur between the region of the inner conductor terminal where the narrow portion is formed and the region of the inner conductor terminal other than the narrow portion, resulting in a deterioration of communication performance.

[0005] The shielded connector of the present disclosure was developed based on the above circumstances, and has an object to suppress impedance mismatch. [Means for solving the problem]

[0006] The shielded connector of the present disclosure comprises: an inner conductor having a shape obtained by bending a thin metal plate in a plate thickness direction, the inner conductor having a first connection portion and a second connection portion extending in different directions from each other from the bent portion; a dielectric to which the inner conductor is attached; an outer conductor surrounding the dielectric material; the dielectric body has a first terminal accommodating portion that accommodates the first connection portion so as to surround the entire periphery thereof, and a second terminal accommodating portion that accommodates the second connection portion, The first terminal accommodating portion is configured to include a main body member molded integrally with the second terminal accommodating portion, and a cover member assembled to the main body member in a direction intersecting the longitudinal direction of the first connection portion. Effect of the Invention

[0007] According to the present disclosure, impedance mismatch can be suppressed. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of an assembled state of the shield connector according to the first embodiment. [Diagram 2] FIG. 2 is an exploded perspective view of the shielded connector. [Diagram 3] FIG. 3 is a perspective view of the large dielectric body and the large inner conductor separated from each other. [Figure 4] FIG. 4 is a perspective view of the small dielectric body and the small inner conductor separated from each other. [Diagram 5] FIG. 5 is a rear view of the assembled shield connector. [Figure 6] FIG. 6 is a bottom view of the assembled shield connector. [Figure 7] FIG. 7 is a cross-sectional view taken along line AA in FIG. [Figure 8] FIG. 8 is a plan view showing the large inner conductor assembled to the large main body member. [Figure 9]FIG. 9 is a graph showing the characteristic impedance of the large inner conductor of Example 1 and the comparative inner conductor. [Figure 10] FIG. 10 is an exploded perspective view of the shielded connector of the second embodiment. [Figure 11] FIG. 11 is a perspective view of the large dielectric body and the large inner conductor separated from each other. [Figure 12] FIG. 12 is a perspective view of the small dielectric body and the small inner conductor separated from each other. [Figure 13] FIG. 13 is a rear view of the assembled shield connector. [Figure 14] FIG. 14 is a bottom view of the assembled shield connector. [Figure 15] FIG. 15 is a cross-sectional view taken along line BB in FIG. [Figure 16] FIG. 16 is a plan view showing the large inner conductor assembled to the large main body member. 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. The shielded connector of the present disclosure comprises: (1) The present disclosure includes an inner conductor having a shape obtained by bending a thin metal plate in the thickness direction and having a first connection part and a second connection part extending from a bending part in different directions from each other, a dielectric to which the inner conductor is attached, and an outer conductor surrounding the dielectric, the dielectric having a first terminal accommodating part that accommodates the first connection part so as to surround the entire circumference, and a second terminal accommodating part that accommodates the second connection part, the first terminal accommodating part being configured to include a main body member integrally molded with the second terminal accommodating part, and a cover member that is assembled to the main body member in a direction intersecting the longitudinal direction of the first connection part. According to the configuration of the present disclosure, when the inner conductor is assembled to the dielectric, the first connection part can be accommodated in the first terminal accommodating part without pressing the inner conductor in the thickness direction. There is no need to form a step part for pressing the inner conductor in the thickness direction at the bending part or a part near the bending part in the inner conductor. Therefore, the width dimension of the region of the inner conductor where the first connection part, the bending part, and the second connection part are connected can be set to a constant width. This makes it possible to suppress impedance mismatch at the bent portion of the inner conductor.

[0010] (2) It is preferable that the first terminal accommodating portion and the first connecting portion are formed with a holding portion that restricts the first connecting portion from being displaced relative to the first terminal accommodating portion in the longitudinal direction of the first connecting portion. With this configuration, the first connecting portion can be reliably held in the first terminal accommodating portion by the holding portion.

[0011] (3) In (2), it is preferable that the holding portion is configured to include a notch portion formed by cutting out a side edge portion of the first connection portion, and a fitting portion formed in the first terminal accommodating portion and into which the notch portion fits. According to this configuration, the inner conductor can be held in a position relative to the dielectric by the locking action between the notch portion and the fitting portion.

[0012] (4) In (2) or (3), it is preferable that the holding portion is configured to include a locking hole formed in the first connection portion and a locking protrusion formed in the first terminal accommodating portion and accommodated in the locking hole. With this configuration, the inner conductor can be held in a position relative to the dielectric by the locking action between the locking hole and the locking protrusion.

[0013] (5) In (4), it is preferable that the locking holes include a circular positioning locking hole and an oval tolerance absorbing locking hole spaced apart in the longitudinal direction of the first connection part, and one of the two circular locking protrusions is fitted into the positioning locking hole in a state in which its relative displacement in two dimensions is restricted, and the other of the two circular locking protrusions is fitted into the tolerance absorbing locking hole in a state in which its relative displacement in one direction is restricted. With this configuration, even if there is variation in the spacing between the two locking protrusions, the variation can be absorbed by the tolerance absorbing locking hole.

[0014] (6) It is preferable that the main body member has an accommodating groove that opens in a direction opposite to the extending direction of the second connecting portion and accommodates the first connecting portion, and the second terminal accommodating portion has a positioning portion that positions the extending end portion of the second connecting portion. According to this configuration, the extending end portion of the second connecting portion can be positioned by the positioning portion in the process of accommodating the first connecting portion in the accommodating groove.

[0015] In (7) and (6), it is preferable that the positioning portion has a hole shape through which the extending end of the second connection portion passes. With this configuration, the extending end of the second connection portion can be positioned in two dimensions.

[0016] (8) It is preferable that the first connection portion and the second connection portion extend in directions that form an obtuse angle with each other. With this configuration, when the positions of the extending ends of the first connection portion and the second connection portion are fixed, the overall length of the inner conductor can be made shorter than in a case where the first connection portion and the second connection portion extend in directions that form a right angle. Furthermore, the bent portion of the inner conductor has a lower impedance than both connection portions, but since the bent portion connects both connection portions at an obtuse angle, the decrease in impedance is suppressed compared to a case where both connection portions are connected at a right angle. This makes it possible to minimize impedance mismatch between both connection portions and the bent portion.

[0017] In (9) and (8), it is preferable that the second terminal accommodating portion has a groove shape that is aligned along the longitudinal direction of the second connection portion and that is open in the opposite direction to the extending direction of the first connection portion. With this configuration, even if the second terminal accommodating portion is not composed of two members, the second connection portion can be accommodated in the second terminal accommodating portion during the process of assembling the first connection portion to the main body member while moving it in its plate thickness direction.

[0018] [Details of the embodiment of the present disclosure] [Example 1] A first embodiment of the present disclosure will be described with reference to Figs. 1 to 9. The present invention is not limited to these examples, but is shown by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims. In this first embodiment, the front-rear direction is defined as the positive direction of the X-axis in Figs. 1 to 4 and 6 to 8. The left-right direction is defined as the positive direction of the Y-axis in Figs. 1 to 6 and 8. The up-down direction is defined as the positive direction of the Z-axis in Figs. 1 to 5 and 7.

[0019] The shielded connector 1 of the present embodiment 1 is configured by assembling one hood member 10 and one shielded terminal 15 as shown in Fig. 1. As shown in Figs. 1 and 7, the hood member 10 is a single component having a base 11 and a tubular connecting portion 12. The base 11 is wall-shaped with its thickness direction facing the front-rear direction. The base 11 has four through holes 13 aligned vertically and horizontally. The tubular connecting portion 12 protrudes forward from the outer periphery of the base 11 in the shape of a square tube.

[0020] As shown in FIG. 2, the shield terminal 15 is configured by assembling one outer conductor 16, a pair of large terminal modules 30 arranged side by side, and a pair of small terminal modules 65 arranged side by side. The outer conductor 16 is a single part made of die casting. The outer conductor 16 has a box-shaped main body 17 with an open rear and bottom, and four connection ports 18 protruding forward from the box-shaped main body 17 in the shape of a rectangular tube. As shown in FIGS. 5 and 6, the inside of the box-shaped main body 17 is divided into two accommodation spaces 20, left and right, by a partition wall 19. The four connection ports 18 are aligned vertically and horizontally. The connection ports 18 communicate with the accommodation space 20.

[0021] <Large terminal module 30> 2 and 3, the large terminal module 30 is configured by assembling a large dielectric 31, a large inner conductor 50, and a conductive plate 59. The large dielectric 31 is configured by assembling a large main body member 32 and a large cover member 33 one above the other. The large main body member 32 is a single component having a terminal receiving portion 34 and a second terminal accommodating portion 35 extending downward from the rear end of the terminal receiving portion 34. A pair of locking projections 36 are formed on both the left and right outer surfaces of the terminal receiving portion 34.

[0022] A pair of left and right first accommodating grooves 37 extending in the front-rear direction are formed on the upper surface of the terminal receiving portion 34. The groove bottom surface of the first accommodating groove 37 extends in the front-rear direction. The front end of the first accommodating groove 37 is open to the front surface of the terminal receiving portion 34, and the rear end of the first accommodating groove 37 is open to the rear surface of the terminal receiving portion 34. The first accommodating groove 37 is open upward over its entire length. As shown in Figs. 3 and 8, a pair of fitting portions 38 protruding from both the left and right inner sides of the first accommodating groove 37 are formed in the first accommodating groove 37. In a plan view of the large main body member 32 seen from above, the fitting portions 38 are rectangular. The front and rear surfaces of the fitting portions 38 are formed by planes perpendicular to the front-rear direction.

[0023] As shown in Figs. 3 and 7, the second terminal accommodating portion 35 is formed with a pair of left and right second accommodating grooves 39 extending in the up-down direction. The second accommodating groove 39 has an inclined groove portion 40 extending obliquely downward and rearward from the rear end of the first accommodating groove 37, and a vertical groove portion 41 extending downward from the lower end of the inclined groove portion 40. As shown in Fig. 7, in a side view of the large main body member 32, the groove bottom surface of the inclined groove portion 40 is continuous with the groove bottom surface of the first accommodating groove 37 at an obtuse angle. The groove bottom surface of the vertical groove portion 41 is perpendicular to the groove bottom surface of the first accommodating groove 37 and is continuous with the groove bottom surface of the inclined groove portion 40 at an obtuse angle. The second accommodating groove 39 is open upward and backward. The upward opening direction of the second accommodating groove 39 is the same as the opening direction of the first accommodating groove 37.

[0024] A bottom wall portion 42 is formed at the lower end of the second accommodating groove 39, separating the interior of the second accommodating groove 39 from the exterior of the large main body member 32. A pair of left and right positioning portions 43 are formed on the bottom wall portion 42. The positioning portions 43 are hole-shaped and penetrate the bottom wall portion 42 in the up-down direction.

[0025] As shown in Fig. 3, the large cover member 33 is a single part having a plate-shaped lid portion 44 and a pair of lock arms 45 extending downward from both left and right side edges of the lid portion 44. The large cover member 33 is assembled to the large main body member 32 so as to cover the terminal receiving portion 34 from above. When the large cover member 33 is assembled to the large main body member 32, the lock arms 45 engage with the lock protrusions 36, thereby locking the large cover member 33 and the large main body member 32 in the assembled state. The lid portion 44 covers the opening of the first accommodating groove 37. The terminal receiving portion 34 and the lid portion 44 form a pair of first terminal accommodating portions 46 on the left and right.

[0026] As shown in Figs. 3 and 7, the large inner conductor 50 is made of one elongated metal plate material, and is a single part formed by bending the metal plate material in the same direction as the plate thickness direction. The large inner conductor 50 has a first connection portion 51, a second connection portion 52, and a bent portion 53. The first connection portion 51 has an elongated shape extending in the front-rear direction. A narrow tab 54 is formed at the front end of the first connection portion 51. As shown in Figs. 3 and 8, a pair of symmetrical cutout portions 55 are formed at the center of the first connection portion 51 in the front-rear direction. The cutout portions 55 are formed by cutting out both left and right side edges of the first connection portion 51, and are rectangular in plan view. The width dimension of the cutout portions 55 of the first connection portion 51 is smaller than the width dimension of the region of the first connection portion 51 behind the cutout portions 55. The region of the first connection portion 51 between the front end of the notch 55 and the rear end of the tab 54 has a trapezoidal shape with a width dimension that decreases toward the front.

[0027] The second connection portion 52 extends downward from the rear end of the first connection portion 51. The upper end of the second connection portion 52 and the rear end of the first connection portion 51 are connected via a bent portion 53. In a side view, the rear end of the first connection portion 51 and the upper end of the second connection portion 52 are connected at an obtuse angle. The second connection portion 52 has a linear inclined portion 56 that constitutes the upper end side portion of the second connection portion 52 and a linear vertical portion 57 that constitutes the lower end side portion of the second connection portion 52. The inclined portion 56 and the first connection portion 51 are connected at an obtuse angle close to 90°. The vertical portion 57 is connected to the inclined portion 56 at an obtuse angle close to 180°. The vertical portion 57 and the first connection portion 51 form a right angle. A narrow board connection portion 58 is formed at the lower end of the vertical portion 57.

[0028] The width of the large inner conductor 50 is set to be the same for the entire region of the first connection portion 51 behind the notch 55, the entire region of the inclined portion 56, the bent portion 53, and the region of the vertical portion 57 above the board connection portion 58. Therefore, the impedances in these regions are roughly matched.

[0029] The conductive plate 59 is a single component formed by bending a metal sheet, and functions as the outer conductor 16. As shown in Fig. 2, the conductive plate 59 has a substrate portion 60 and a pair of side plate portions 61 extending rearward from both left and right edges of the substrate portion 60. The conductive plate 59 is assembled to the large main body member 32 by press-fitting from the front. The substrate portion 60 is disposed so as to be in close contact with the front surface of the second terminal accommodating portion 35, and the side plate portions 61 are disposed so as to be in close contact with both left and right outer surfaces of the second terminal accommodating portion 35.

[0030] <Small terminal module 65> The small terminal module 65 is constructed by assembling a small dielectric 66 and a small inner conductor 69. As shown in Figures 2 and 4, the small dielectric 66 is constructed by assembling a small main body member 67 and a small cover member 68 one above the other. The small main body member 67 is a single component having the terminal receiving portion 34 and the second terminal accommodating portion 35 that protrudes downward from the rear end of the terminal receiving portion 34. A pair of locking projections 36 are formed on both the left and right outer surfaces of the terminal receiving portion 34.

[0031] A pair of left and right first accommodating grooves 37 extending in the front-rear direction are formed on the upper surface of the terminal receiving portion 34. The groove bottom surface of the first accommodating groove 37 extends in the front-rear direction. The front end of the first accommodating groove 37 opens to the front surface of the terminal receiving portion 34, and the rear end of the first accommodating groove 37 opens to the rear surface of the terminal receiving portion 34. The first accommodating groove 37 is open upward over its entire length. A pair of fitting portions 38 protruding from both left and right inner surfaces of the first accommodating groove 37 are formed inside the first accommodating groove 37. Small body parts 67 In a plan view seen from above, the fitting portion 38 has a rectangular shape. The front and rear surfaces of the fitting portion 38 are formed by planes perpendicular to the front-rear direction.

[0032] A pair of left and right second accommodating grooves 39 extending in the up-down direction are formed in the second terminal accommodating portion 35. As shown in Fig. 7, the second accommodating groove 39 has an inclined groove portion 40 extending diagonally downward and rearward from the rear end of the first accommodating groove 37, and a vertical groove portion 41 extending downward from the lower end of the inclined groove portion 40. Small body parts 67 In a side view of the second accommodating groove 39, the groove bottom surface of the inclined groove portion 40 is continuous with the groove bottom surface of the first accommodating groove 37 at an obtuse angle. The groove bottom surface of the vertical groove portion 41 is perpendicular to the groove bottom surface of the first accommodating groove 37 and is continuous with the groove bottom surface of the inclined groove portion 40 at an obtuse angle. The second accommodating groove 39 is open upward and rearward. The upward opening direction of the second accommodating groove 39 is the same as the opening direction of the first accommodating groove 37.

[0033] A bottom wall portion 42 is formed at the lower end of the second accommodating groove 39, separating the inside of the second accommodating groove 39 from the outside of the small main body member 67. A pair of left and right positioning portions 43 are formed on the bottom wall portion 42. The positioning portions 43 are hole-shaped and penetrate the bottom wall portion 42 in the up-down direction.

[0034] The small cover member 68 is a single part having a plate-shaped lid portion 44 and a pair of lock arms 45 extending downward from both left and right side edges of the lid portion 44. The small cover member 68 is assembled to the small main body member 67 so as to cover the terminal receiving portion 34 from above. When the small cover member 68 is assembled to the small main body member 67, the lock arms 45 engage with the lock protrusions 36, thereby locking the small cover member 68 and the small main body member 67 in the assembled state. The lid portion 44 covers the opening of the first accommodating groove 37. The terminal receiving portion 34 and the lid portion 44 form a pair of left and right first terminal accommodating portions 46.

[0035] As shown in Figs. 4 and 7, the small inner conductor 69 is made of one elongated metal plate material, and is a single part formed by bending the metal plate material in the same direction as the plate thickness direction. The small inner conductor 69 has a first connection portion 51, a second connection portion 52, and a bent portion 53. The first connection portion 51 has an elongated shape extending in the front-rear direction. A narrow tab 54 is formed at the front end of the first connection portion 51. A pair of symmetrical cutout portions 55 is formed at a portion of the first connection portion 51 that is closer to the rear end side than the center in the front-rear direction. The cutout portions 55 are formed by cutting out both left and right side edges of the first connection portion 51, and are rectangular in plan view. The width dimension of the cutout portions 55 of the first connection portion 51 is smaller than the width dimension of the region of the first connection portion 51 that is rearward of the cutout portions 55. The region of the first connection portion 51 between the front end of the notch 55 and the rear end of the tab 54 has a trapezoidal shape with a width dimension that decreases toward the front.

[0036] The second connection portion 52 extends downward from the rear end of the first connection portion 51. The upper end of the second connection portion 52 and the rear end of the first connection portion 51 are connected via a bent portion 53. In a side view, the rear end of the first connection portion 51 and the upper end of the second connection portion 52 are connected at an obtuse angle. The second connection portion 52 has a linear inclined portion 56 that constitutes the upper end side portion of the second connection portion 52 and a linear vertical portion 57 that constitutes the lower end side portion of the second connection portion 52. The inclined portion 56 and the first connection portion 51 are connected at an obtuse angle close to 90°. The vertical portion 57 is connected to the inclined portion 56 at an obtuse angle close to 180°. The vertical portion 57 and the first connection portion 51 form a right angle. A narrow board connection portion 58 is formed in a region of the vertical portion 57 excluding the upper end portion.

[0037] The width of the small inner conductor 69 is set to be the same in the entire region of the first connection portion 51 behind the notch 55, the entire region of the inclined portion 56, the bent portion 53, and the region of the vertical portion 57 above the board connection portion 58. Therefore, the impedance in these regions is roughly matched.

[0038] <Actions and Effects of Example 1> The procedure for assembling the large terminal module 30 will be described. With the large cover member 33 removed from the large main body member 32, the large inner conductor 50 is provisionally assembled to the large main body member 32 from above. At this time, the first connection portion 51 of the large inner conductor 50 is fitted into the first housing groove 37, the second connection portion 52 is fitted into the second housing groove 39, and the board connection portion 58 of the second connection portion 52 is inserted into the positioning portion 43. The second housing groove 39 extends in a direction intersecting with the first housing groove 37, but the second housing groove 39 is open not only rearward but also upward like the first housing groove 37, so there is no support for assembling the second connection portion 52. In the second housing groove 39, the entire inclined portion 56 is accommodated in the inclined groove portion 40, and the portion of the vertical portion 57 above the board connection portion 58 is accommodated in the vertical groove portion 41.

[0039] After the large inner conductor 50 is assembled to the large main body member 32, the large cover member 33 is assembled to the large main body member 32. The large cover member 33 and the large main body member 32 are held in an assembled state by the lock arm 45 engaging with the lock protrusion 36. As a result, the large inner conductor 50 and the large dielectric 31 are integrated at the same time as the assembly of the large dielectric 31 is completed. Around the same time as the assembly of the large inner conductor 50 and the large dielectric 31, the conductive plate 59 is assembled to the large main body member 32. With the above, the assembly of the large terminal module 30 is completed.

[0040] The lid portion 44 of the large cover member 33 closes the opening of the upper surface of the first housing groove 37 to form the first terminal housing 46. The first connection portion 51 is housed in the first terminal housing 46. The lid portion 44 prevents the first connection portion 51 from being removed upward. In the first terminal housing 46, the engagement between the notch portion 55 and the engagement portion 38 prevents the large inner conductor 50 (first connection portion 51) from moving relative to the large dielectric 31 in the front-rear and left-right directions. The tab 54 protrudes forward from the first terminal housing 46. The board connection portion 58 is positioned in the front-rear and left-right directions by engaging with the positioning portion 43. It protrudes downward from the lower end surface of the second terminal housing 35 to be connectable to a circuit board (not shown).

[0041] Next, the procedure for assembling the small terminal module 65 will be described. With the small cover member 68 removed from the small body member 67, the small inner conductor 69 is provisionally assembled to the small body member 67 from above. At this time, the first connection portion 51 of the small inner conductor 69 is fitted into the first housing groove 37, the second connection portion 52 is fitted into the second housing groove 39, and the board connection portion 58 of the second connection portion 52 is inserted into the positioning portion 43. The second housing groove 39 extends in a direction intersecting with the first housing groove 37, but the second housing groove 39 is open not only rearward but also upward like the first housing groove 37, so there is no support for assembling the second connection portion 52. In the second housing groove 39, the entire inclined portion 56 is accommodated in the inclined groove portion 40, and the portion of the vertical portion 57 above the board connection portion 58 is accommodated in the vertical groove portion 41.

[0042] After the small inner conductor 69 is assembled to the small main body member 67, the small cover member 68 is assembled to the small main body member 67. The small cover member 68 and the small main body member 67 are held in an assembled state by the lock arm 45 engaging with the lock protrusion 36. As a result, the assembly of the small dielectric 66 is completed, and at the same time, the small conductor and the small dielectric 66 are integrated. With the above, the assembly of the small terminal module 65 is completed.

[0043] The lid portion 44 of the small cover member 68 closes the opening on the upper surface of the first housing groove 37, thereby forming the first terminal housing 46. The first connection portion 51 is housed in the first terminal housing 46. The lid portion 44 prevents the first connection portion 51 from being removed upward. In the first terminal housing 46, the engagement between the notch portion 55 and the engagement portion 38 prevents the small inner conductor 69 (first connection portion 51) from moving relative to the small dielectric 66 in the front-rear and left-right directions. The tab 54 protrudes forward from the first terminal housing 46. The board connection portion 58 is positioned in the front-rear and left-right directions by engaging with the positioning portion 43. It protrudes downward from the lower end surface of the second terminal housing 35, and is connectable to a circuit board (not shown).

[0044] After the assembly of the large terminal module 30 and the small terminal module 65 is completed, both terminal modules 30, 65 are assembled to the outer conductor 16. When assembling, first, the first terminal accommodating portion 46 of the small terminal module 65 is inserted into the accommodating space 20 from the rear of the outer conductor 16 and fitted into the connection port 18 on the lower stage side. The tab 54 protruding from the first terminal accommodating portion 46 is accommodated in the connection port 18. The second terminal accommodating portion 35 is accommodated in the accommodating space 20. Next, the first terminal accommodating portion 46 of the large terminal module 30 is inserted into the accommodating space 20 from the rear of the outer conductor 16 and fitted into the connection port 18 on the upper stage side. The tab 54 protruding from the first terminal accommodating portion 46 is accommodated in the connection port 18. The second terminal accommodating portion 35 is accommodated in the accommodating space 20. With the above, the assembly of the shield terminal 15 is completed.

[0045] The outer conductor 16 is assembled to the hood member 10 around the time of assembly of the two terminal modules 30, 65 and the outer conductor 16. During assembly, each connection port 18 is fitted into the through hole 13 of the hood member 10, and the front surface of the box-shaped main body 17 is held in close contact with the rear surface of the base 11 of the hood member 10. With the above, assembly of the shielded connector 1 is completed.

[0046] <Actions and Effects of Example 1> The shielded connector 1 of the first embodiment includes a large inner conductor 50, a large dielectric 31, an outer conductor 16, a small inner conductor 69, and a small dielectric 66. The large inner conductor 50 and the small inner conductor 69 are formed by bending a thin metal plate in the thickness direction, and have a first connection portion 51 and a second connection portion 52 extending in different directions from a bending portion 53. The large inner conductor 50 is attached to the large dielectric 31. The small inner conductor 69 is attached to the small dielectric 66. The outer conductor 16 surrounds the large dielectric 31 and the small dielectric 66 to provide a shielding function.

[0047] The large dielectric 31 and the small dielectric 66 each have a first terminal accommodating portion 46 that accommodates the first connecting portion 51 so as to surround the entire periphery, and a second terminal accommodating portion 35 that accommodates the second connecting portion 52. The first terminal accommodating portion 46 of the large dielectric 31 includes a large main body member 32 integrally molded with the second terminal accommodating portion 35, and a large cover member 33 that is assembled to the large main body member 32 in a direction intersecting the longitudinal direction of the first connecting portion 51. The first terminal accommodating portion 46 of the small dielectric 66 includes a small main body member 67 integrally molded with the second terminal accommodating portion 35, and a small cover member 68 that is assembled to the small main body member 67 in a direction intersecting the longitudinal direction of the first connecting portion 51.

[0048] When the large inner conductor 50 is assembled to the large dielectric 31, the first connection portion 51 can be accommodated in the first terminal accommodating portion 46 without pressing the large inner conductor 50 in the plate thickness direction. There is no need to form a step portion for pressing the large inner conductor 50 in the plate thickness direction at the bent portion 53 or a portion near the bent portion 53 in the large inner conductor 50. Therefore, it is possible to set the width dimension of the region of the large inner conductor 50 where the first connection portion 51, the bent portion 53, and the second connection portion 52 are continuous to a constant width. This makes it possible to suppress impedance mismatch at the bent portion 53 of the large inner conductor 50.

[0049] The small inner conductor 69 is assembled to the small dielectric 66 in the same manner as the large inner conductor 50 is assembled to the large dielectric 31. There is no need to form a step portion for pressing the small inner conductor 69 in the plate thickness direction at the bent portion 53 or a portion near the bent portion 53 in the small inner conductor 69. Therefore, it is possible to set the width dimension of the area of ​​the small inner conductor 69 where the first connection portion 51, the bent portion 53, and the second connection portion 52 are connected to each other to a constant width. This makes it possible to suppress impedance mismatch at the bent portion 53 of the small inner conductor 69.

[0050] The graph shown in FIG. 9 shows a comparison between the characteristic impedance of the large inner conductor 50 of this Example 1 and the characteristic impedance of a comparative inner conductor (not shown) having a different shape from this Example 1. In FIG. 9, the solid line shows the characteristic impedance of the large inner conductor 50, and the dashed line shows the characteristic impedance of the comparative inner conductor. The basic shape and dimensions of the comparative inner conductor are the same as those of the large inner conductor 50 of this Example 1. The difference between the two is that the large inner conductor 50 has a notch 55 formed in the first connection portion 51, whereas the comparative inner conductor does not have a notch 55 formed. Also, the rear end of the first connection portion 51, the bent portion 53, and the upper end of the second connection portion 52 of the large inner conductor 50 have a constant width dimension. In contrast, the comparative inner conductor has stepped notches cut into the left and right side edges of the rear end of the first connection portion, the bent portion, and the upper end of the second connection portion, First connection part9, the fluctuation range of the characteristic impedance of the large inner conductor 50 is kept smaller than the fluctuation range of the characteristic impedance of the comparative inner conductor. Therefore, the communication performance of the large inner conductor 50 is more stable and superior than that of the comparative inner conductor.

[0051] The first terminal accommodating portion 46 and the first connecting portion 51 are formed with a retaining portion that restricts the first connecting portion 51 from being displaced relative to the first terminal accommodating portion 46 in the longitudinal direction (front-rear direction) of the first connecting portion 51. The retaining portion is configured with a notch portion 55 formed by cutting out a side edge portion of the first connecting portion 51, and a fitting portion 38 formed in the first terminal accommodating portion 46. The notch portion 55 is fitted into the fitting portion 38. The locking action between the notch portion 55 and the fitting portion 38 can reliably hold the large inner conductor 50 in a position relative to the large dielectric 31, and can reliably hold the small inner conductor 69 in a position relative to the small dielectric 66.

[0052] The large body member 32 and the small body member 67 are formed with a first accommodating groove 37 for accommodating the first connecting portion 51. The first accommodating groove 37 opens in the opposite direction (upward) to the extending direction (downward) of the second connecting portion 52. The second terminal accommodating portion 35 is formed with a positioning portion 43 for positioning the board connecting portion 58 (extending end portion) of the second connecting portion 52. In the process of accommodating the first connecting portion 51 in the first accommodating groove 37, the board connecting portion 58 of the second connecting portion 52 can be positioned by the positioning portion 43. The positioning portion 43 has a hole shape that allows the board connecting portion 58 to pass through, so that the board connecting portion 58 can be positioned in two dimensions (front-rear and left-right directions).

[0053] The first connecting portion 51 and the second connecting portion 52 extend from the bent portion 53 in a direction forming an obtuse angle with each other. With this configuration, when the extending end (front end) of the first connecting portion 51 and the extending end (lower end) of the second connecting portion 52 are fixed in position, the overall length of the large inner conductor 50 and the small inner conductor 69 can be made shorter than that of a case in which the first connecting portion 51 and the second connecting portion 52 extend in a direction forming a right angle. The bent portion 53 of the large inner conductor 50 and the bent portion 53 of the small inner conductor 69 have lower impedance than the first connecting portion 51 and the second connecting portion 52. However, since the bent portion 53 connects the first connecting portion 51 and the second connecting portion 52 at an obtuse angle, the decrease in impedance is suppressed compared to the case in which both connecting portions 51 and 52 are connected at a right angle. This makes it possible to suppress the impedance mismatch between both connecting portions 51 and 52 and the bent portion 53.

[0054] The second terminal accommodating portion 35 is groove-shaped along the longitudinal direction (up-down direction) of the second connecting portion 52 and open in the opposite direction (rearward) to the extending direction of the first connecting portion 51. With this configuration, the second connecting portion 52 can be accommodated in the second terminal accommodating portion 35 during the process of assembling the first connecting portion 51 to the large main body member 32 or the small main body member 67 while moving the first connecting portion 51 in its plate thickness direction. Therefore, the second terminal accommodating portion 35 does not need to be configured from two members, and can be made into a single part.

[0055] [Example 2] A second embodiment of the present disclosure will be described with reference to Figs. 10 to 16. The shielded connector 2 of the second embodiment has a holding portion for holding the large inner conductor 88 in the large dielectric 82 and a holding portion for holding the small inner conductor 97 in the small dielectric 94, which are configured differently from those of the first embodiment. The second terminal accommodating portion 35 of the shielded connector 2 of the second embodiment does not have a positioning portion for positioning the extending ends of the large inner conductor 88 and the small inner conductor 97. The other configurations are the same as those of the first embodiment, so the same configurations and parts are denoted by the same reference numerals, and a description of the structure, action, and effect will be omitted.

[0056] In this second embodiment, regarding the front-rear direction, the positive direction of the X axis in Figures 10 to 12 and 14 to 16 is defined as the front. Regarding the left-right direction, the positive direction of the Y axis in Figures 10 to 14 and 16 is defined as the right. Regarding the up-down direction, the positive direction of the Z axis in Figures 10 to 13 and 15 is defined as the up.

[0057] The shielded connector 2 of the second embodiment is configured by assembling the same hood member 10 as in the first embodiment and one shielded terminal 80. The shielded terminal 80 is configured by assembling the same outer conductor 16 as in the first embodiment, a pair of large terminal modules 81 arranged side by side, and a pair of small terminal modules 93 arranged side by side.

[0058] The large terminal module 81 is configured by assembling a large dielectric 82, a large inner conductor 88, and the same conductive plate 59 as in Example 1. The basic structure of the large dielectric 82 is the same as that of the large dielectric 31 in Example 1. The large dielectric 82 is configured by assembling a large main body member 83 and a large cover member 84 one above the other. The large main body member 83 is a single component having a terminal receiving portion 34 and a second terminal accommodating portion 35 extending downward from the rear end of the terminal receiving portion 34.

[0059] As shown in FIG. 11, a pair of left and right first accommodating grooves 85 extending in the front-rear direction are formed on the upper surface of the terminal receiving portion 34. The groove bottom surface of the first accommodating groove 85 extends in the front-rear direction. The front end of the first accommodating groove 85 is open to the front surface of the terminal receiving portion 34, and the rear end of the first accommodating groove 85 is open to the rear surface of the terminal receiving portion 34. The first accommodating groove 85 is open upward over its entire length. The first accommodating groove 85 is formed with a pair of locking protrusions 86 protruding upward from the groove bottom surface. The pair of locking protrusions 86 are arranged with a gap between them in the front-rear direction. Each locking protrusion 86 is cylindrical in shape when viewed from above.

[0060] The basic shape of the large inner conductor 88 is the same as that of the first embodiment. Large inner conductor 50The first connecting portion 89 of the large inner conductor 88 has a positioning locking hole 90 and a tolerance absorption locking hole 91 formed at a distance in the front-rear direction. The positioning locking hole 90 has a circular shape in a plan view. The inner diameter of the positioning locking hole 90 is the same as the outer diameter of the locking protrusion 86. The tolerance absorption locking hole 91 has an elliptical shape in a plan view that is elongated in the front-rear direction. The width dimension in the left-right direction of the tolerance absorption locking hole 91 is the same as the outer diameter of the locking protrusion 86. The length dimension in the front-rear direction of the tolerance absorption locking hole 91 is larger than the outer diameter of the locking protrusion 86. The second connecting portion 92 extends obliquely downward and rearward from the rear end of the first connecting portion 89.

[0061] As shown in Fig. 12, the small terminal module 93 is configured by assembling a small dielectric 94 and a small inner conductor 97. The basic structure of the small dielectric 94 is the same as that of the small dielectric 66 of the first embodiment. The small dielectric 94 is configured by assembling a small main body member 95 and a small cover member 96 one above the other. The small main body member 95 is a single component having the terminal receiving portion 34 and the second terminal accommodating portion 35 extending downward from the rear end of the terminal receiving portion 34.

[0062] A pair of left and right first accommodating grooves 85 extending in the front-rear direction are formed on the upper surface of the terminal receiving portion 34. The groove bottom surface of the first accommodating groove 85 extends in the front-rear direction. The front end of the first accommodating groove 85 is open to the front surface of the terminal receiving portion 34, and the rear end of the first accommodating groove 85 is open to the rear surface of the terminal receiving portion 34. The first accommodating groove 85 is open upward over its entire length. The first accommodating groove 85 is formed with a pair of locking protrusions 86 protruding upward from the groove bottom surface. The pair of locking protrusions 86 are arranged with a gap in between in the front-rear direction. Each locking protrusion 86 is cylindrical in shape when viewed from above.

[0063] The basic shape of the small inner conductor 97 is the same as that of the small inner conductor 69 of the first embodiment. A positioning locking hole 90 and a tolerance absorption locking hole 91 are formed in the first connection portion 89 of the small inner conductor 97 with a gap therebetween in the front-rear direction. The positioning locking hole 90 has a circular shape in a plan view. The inner diameter of the positioning locking hole 90 is the same as the outer diameter of the locking protrusion 86. The tolerance absorption locking hole 91 has a narrow oval shape in a plan view. The width dimension of the tolerance absorption locking hole 91 in the left-right direction is the same as the outer diameter of the locking protrusion 86. The length dimension of the tolerance absorption locking hole 91 in the front-rear direction is greater than the outer diameter of the locking protrusion 86.

[0064] The first terminal accommodating section 98 of the large terminal module 81 is formed by assembling the terminal receiving section 34 and the large cover member 84. The first terminal accommodating section 98 of the small terminal module 93 is formed by assembling the terminal receiving section 34 and the small cover member 96. The first terminal accommodating section 98 and the first connecting section 89 are formed with a holding section that restricts the first connecting section 89 from being displaced relative to the first terminal accommodating section 98 in the longitudinal direction of the first connecting section 89. The holding section is configured with locking holes 90, 91 formed in the first connecting section 89 and a locking protrusion 86 formed in the first terminal accommodating section 98 and accommodated in the locking holes 90, 91. With this configuration, the locking action between the locking holes 90, 91 and the locking protrusion 86 allows the inner conductors 88, 97 to be held in a position relative to the dielectrics 82, 94.

[0065] The locking holes include a circular positioning locking hole 90 and an oval tolerance absorbing locking hole 91 spaced apart in the longitudinal direction of the first connecting portion 89. One (front) of the two circular locking protrusions 86 fits into the positioning locking hole 90 in a state where relative displacement in two dimensional directions (front-rear and left-right directions) is restricted. The other (rear) of the two locking protrusions 86 fits into the tolerance absorbing locking hole 91 in a state where relative displacement in one direction (left-right direction) is restricted. Even if there is variation in the spacing between the two locking protrusions 86, the variation can be absorbed by the tolerance absorbing locking hole 91.

[0066] [Other Examples] The present invention is not limited to the embodiments described above and shown in the drawings, but is indicated by the claims. The present invention includes the equivalent meaning of the claims and all modifications within the scope of the claims, and is intended to include the following embodiments. In the first and second embodiments, the first connection portion and the second connection portion may extend in directions forming a right angle with each other. In the first and second embodiments, the second terminal accommodating portion may be configured by assembling a plurality of members. In the first embodiment, a locking hole may be formed in the first connection portion. In the second embodiment, a notch may be formed in the side edge of the first connection portion. In the second embodiment, all of the locking holes may be circular. [Explanation of symbols]

[0067] 1…Shielded connector 2…Shielded connector 10…Hood member 11...Base 12...Cylindrical joint 13...Through hole 15…Shield terminal 16...Outer conductor 17...Box-shaped main body 18…Connection port 19…Partition wall 20…Containment space 30...Large terminal module 31...Large dielectric (dielectric) 32...Large main body component (main body component) 33...Large cover part (cover part) 34...Terminal receiving part 35...Second terminal housing 36…Lock protrusion 37…First storage groove (storage groove) 38...Fitting portion (retaining portion) 39…Second storage groove 40…Slanted groove part 41...Vertical groove 42…Bottom wall 43... Positioning part 44…Lid part 45…Lock arm 46…First terminal housing 50...Large inner conductor (inner conductor) 51…First connection part 52…Second connection part 53…Bend 54…Tab 55...Notch (retaining part) 56…Slope part 57…Vertical section 58...Board connection part 59...Conductive plate 60...Substrate section 65...Small terminal module 66...Small dielectric (dielectric) 67...Small body member (body member) 68...Small cover part (cover part) 69...Small inner conductor (inner conductor) 80...Shield terminal 81...Large terminal module 82...Large dielectric (dielectric) 83...Large main body parts (main body parts) 84...Large cover parts (cover parts) 85…First storage groove (storage groove) 86…Latching protrusion 88...Large inner conductor (inner conductor) 89…First connection part 90...Lock hole for positioning (holding portion, lock hole) 91...Tolerance absorbing locking hole (retaining portion, locking hole) 92…Second connection part 93...Small terminal module 94...Small dielectric (dielectric) 95...Small body parts (body parts) 96...Small cover parts (cover parts) 97...Small inner conductor (inner conductor) 98...First terminal housing

Claims

1. an inner conductor having a shape obtained by bending a thin metal plate in a plate thickness direction, the inner conductor having a first connection portion and a second connection portion extending in different directions from each other from a bending portion; a dielectric to which the inner conductor is attached; an outer conductor surrounding the dielectric material; the dielectric body has a first terminal accommodating portion that accommodates the first connection portion so as to surround the entire periphery thereof, and a second terminal accommodating portion that accommodates the second connection portion; the first terminal accommodating portion includes a main body member integrally formed with the second terminal accommodating portion, and a cover member assembled to the main body member in a direction intersecting a longitudinal direction of the first connection portion, The main body member has an accommodation groove formed therein, the accommodation groove opening in a direction opposite to an extending direction of the second connection portion and accommodating the first connection portion, The second terminal accommodating portion is formed with a positioning portion for positioning the extending end portion of the second connection portion.

2. An inner conductor having a shape of a long and thin metal plate bent in the plate thickness direction, and having a first connection part and a second connection part extending in different directions from the bent part; a dielectric to which the inner conductor is attached; an outer conductor surrounding the dielectric material; the dielectric body has a first terminal accommodating portion that accommodates the first connection portion so as to surround the entire periphery thereof, and a second terminal accommodating portion that accommodates the second connection portion; the first terminal accommodating portion includes a main body member integrally formed with the second terminal accommodating portion, and a cover member assembled to the main body member in a direction intersecting a longitudinal direction of the first connection portion, The first connection portion and the second connection portion extend in directions forming an obtuse angle with each other, A shielded connector, wherein the second terminal accommodating portion is groove-shaped along the longitudinal direction of the second connection portion and open in the opposite direction to the extension direction of the first connection portion.

3. A shielded connector as described in claim 1 or claim 2, wherein the first terminal accommodating portion and the first connection portion are formed with a retaining portion that regulates relative displacement of the first connection portion in the longitudinal direction of the first connection portion with respect to the first terminal accommodating portion.

4. A shielded connector as described in Claim 3, wherein the retaining portion is configured to include a cutout portion formed by cutting out a side edge portion of the first connection portion, and a fitting portion formed in the first terminal accommodating portion and fitting into the cutout portion.

5. A shielded connector as described in claim 3 or claim 4, wherein the retaining portion is configured to include a locking hole formed in the first connection portion and a locking protrusion formed in the first terminal accommodating portion and accommodated in the locking hole.

6. The locking hole includes circular positioning locking holes spaced apart in the longitudinal direction of the first connection portion and oval tolerance absorbing locking holes, one of the two circular locking projections is fitted into the positioning locking hole in a state in which relative displacement in two dimensional directions is restricted; 6. The shielded connector according to claim 5, wherein the other of the two circular locking projections is fitted into the tolerance absorbing locking hole in a state in which relative displacement in one direction is restricted with respect to the tolerance absorbing locking hole.

7. 2. The shielded connector according to claim 1, wherein the positioning portion has a hole shape through which the extending end portion of the second connecting portion passes.

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