Shielded connector

Abstract

And the damage of the shielding terminal to the shell is prevented. A first shield connector is provided with: a shield terminal (20) having a first inner conductor (21), a first dielectric body (22), and a first outer conductor (23); and a housing (11) into which the shield terminal (20) is inserted from the rear, the first outer conductor (23) being configured from a metal sheet material (25) and being configured by connecting, in the front-rear direction, a front cylindrical member (24) and a rear cylindrical member (50), the axis of which is oriented in the front-rear direction, the front cylindrical member (24) being integrally formed with a misinsertion prevention portion (35), and the rear cylindrical member (50) being integrally formed with the misinsertion prevention portion (35). The misinsertion prevention portion (35) is formed in a shape that extends in a cantilevered manner and is bent so as to protrude outward in the radial direction, the front surface of the misinsertion prevention portion (35) is configured only by a surface other than the shear surfaces (25S, 25R), and a support portion (55) is formed on the rear cylindrical member (50) and supports an extended end portion (35E) of the misinsertion prevention portion (35).

Description

Technical Field

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

[0002] Patent Document 1 discloses a connector comprising terminal parts and a housing made of synthetic resin. The terminal parts are connected to the terminal portion of a shielded wire and are inserted into the housing. Each terminal part comprises an inner conductor, a dielectric body housing the inner conductor, and an outer conductor surrounding the dielectric body. The terminal part is cylindrical, and therefore, a first stabilizing portion and a second stabilizing portion protruding radially outward are formed on the outer peripheral surface of the outer conductor. When the terminal part is correctly inserted relative to the housing, the first and second stabilizing portions are inserted into the first and second guide grooves of the housing. The inserted terminal part is held in an anti-dislodgement state by being engaged by the second stabilizing portion with the spear-shaped portion. When the terminal part is incorrectly inserted into the housing, the front ends of the first and second stabilizing portions contact the rear surface of the housing, thereby preventing the terminal part from being inserted in the wrong posture.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-114489 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] The outer conductor is formed by bending or other processes on a metal sheet that has been punched into a predetermined shape. The first stabilizing part and the second stabilizing part are sections where a portion of the metal sheet is bent along a crease in the axial direction. The front end face of the first stabilizing part exposes the sheared surface from when the metal sheet was punched. Therefore, when the front end face of the first stabilizing part contacts the rear surface of the housing, the edge of the sheared surface of the first stabilizing part may engage with the rear surface of the housing.

[0008] The shielded connector disclosed herein is made based on the aforementioned situation, with the aim of preventing damage to the housing by the shielding terminals.

[0009] Solution for solving the problem

[0010] The shielded connector disclosed herein has the following features:

[0011] Shielded terminals have an inner conductor, a dielectric body, and an outer conductor; and

[0012] The housing, wherein the shielding terminal is inserted into the housing from the rear.

[0013] The outer conductor is made of a metal sheet and is constructed by connecting two cylindrical members in the front-back direction so that their axes are oriented in the front-back direction.

[0014] One of the two cylindrical members has an integrally formed anti-misinsertion portion, which is formed in a cantilevered shape and bent in a radially outward manner. The front surface of the anti-misinsertion portion consists only of surfaces other than the shear plane.

[0015] The other of the two cylindrical members has a support portion that supports the extended end of the anti-misinsertion portion.

[0016] Invention Effects

[0017] The shielded connector according to this disclosure can prevent damage to the housing from the shielding terminals. Attached Figure Description

[0018] Figure 1 This is a perspective view of the shielded connector of Embodiment 1 with the shielding terminal inserted into the housing, viewed from an obliquely upward front.

[0019] Figure 2 This is a three-dimensional view of the shielding terminals viewed from the lower front.

[0020] Figure 3 This is the front view of the shielding terminal.

[0021] Figure 4 This is a top view of the shielded terminals.

[0022] Figure 5 This is a bottom view of the shielding terminal.

[0023] Figure 6 This is a side sectional view showing the state of the shielding terminals being inserted into the housing.

[0024] Figure 7 This is a partially enlarged cross-sectional view showing the state of preventing accidental insertion from contacting the rear surface of the housing.

[0025] Figure 8 This is a schematic rear view showing the shielding terminals inserted into the housing in the correct orientation.

[0026] Figure 9 This is a schematic rear view showing the shielding terminal being inserted into the housing in an incorrect manner.

[0027] Figure 10 This is a side sectional view showing the state in which the shielding terminal and the opposite-side terminal are connected.

[0028] Figure 11 This is a front sectional view showing the state in which the shielding terminal and the opposite-side terminal are connected. Detailed Implementation

[0029] [Description of embodiments of this disclosure]

[0030] First, embodiments of this disclosure will be described. Any combination of the following embodiments without contradiction is also included in the specific embodiments of this invention.

[0031] The shielded connector disclosed herein,

[0032] (1) The device comprises: a shielding terminal having an inner conductor, a dielectric body, and an outer conductor; and a housing, wherein the shielding terminal is inserted into the housing from the rear, and the outer conductor is made of a metal sheet and is constructed by connecting two cylindrical members with their axes pointing in the front-rear direction. One of the two cylindrical members has an integrally formed anti-misinsertion portion, which is cantilevered and bent in a radially outward manner. The front surface of the anti-misinsertion portion is formed only by surfaces other than the shear surface. The other cylindrical member has a support portion that supports the extended end of the anti-misinsertion portion. According to this structure, if the shielding terminal is inserted into the housing in an incorrect orientation, the front surface of the anti-misinsertion portion will not contact the rear surface of the housing. Here, because the front surface of the anti-misinsertion portion is formed only by surfaces other than the shear surface, the shear surface of the anti-misinsertion portion does not contact the rear surface of the housing. Therefore, damage to the rear surface of the housing by the shear surface of the anti-misinsertion portion can be prevented.

[0033] (2) In (1), preferably, the rear end of one cylindrical member is externally fitted into the front end of the other cylindrical member, and the anti-misinsertion part is formed into a rearward cantilevered shape and bent into a V-shape, with the extended end of the anti-misinsertion part supported by the outer peripheral surface of the other cylindrical member. According to this structure, when the anti-misinsertion part contacts the rear surface of the housing, or when a rearward reaction force is applied to the anti-misinsertion part from the housing side, the anti-misinsertion part will shift radially inward with its front end as the fulcrum, so the extended end of the anti-misinsertion part abuts against the outer peripheral surface of the other cylindrical member in an engaged manner. Therefore, deformation of the anti-misinsertion part caused by the reaction force from the housing side can be prevented.

[0034] (3) In (1) or (2), preferably, the two cylindrical members are fixed at the spot welded portion in such a way that the ends of the two cylindrical members are coaxially fitted together, and a pair of slits extending in the front-rear direction are formed at the end of one of the cylindrical members, and the anti-misinsertion portion is formed by the portion of the one cylindrical member divided by the pair of slits. According to this structure, even if the length of the slits is increased to increase the radial protrusion of the anti-misinsertion portion, a wider setting area of ​​the spot welded portion can be ensured.

[0035] (4) In (1) or (2), preferably, the end of one cylindrical member is externally fitted into the end of the other cylindrical member, a pair of slits extending in the front-rear direction are formed at the end of one cylindrical member, the anti-misinsertion portion is formed by the portion of one cylindrical member divided by the pair of slits, and the end of the other cylindrical member closes at least a portion of the opening formed between the pair of slits. According to this structure, an opening region that connects the interior and exterior of the outer conductor can be avoided or the area of ​​the opening region can be reduced in the region where the anti-misinsertion portion is formed in the outer conductor. Therefore, the reduction in shielding function caused by the formation of the anti-misinsertion portion can be suppressed.

[0036] (5) In (1) or (2), preferably, a wobbling-eliminating protrusion is formed in a region on the outer peripheral surface of the outer conductor opposite to the axis of the outer conductor and the anti-misinsertion portion, protruding radially outward. According to this structure, by abutting the wobbling-eliminating protrusion against the inner peripheral surface of the housing, the position of the shielding terminal within the housing is shifted in the same direction as the protrusion direction of the anti-misinsertion portion. Therefore, even if the radial protrusion dimension of the anti-misinsertion portion is small, incorrect insertion posture of the shielding terminal can be detected.

[0037] (6) In (1) or (2), preferably, a locking portion is formed on the outer peripheral surface of the shielding terminal at a position rearward of the anti-misinsertion portion, and a spear-shaped portion is formed inside the housing. The spear-shaped portion prevents the shielding terminal from dislodging in the inserted state by locking onto the locking portion. The anti-misinsertion portion is arranged in a different region in the circumferential direction from the spear-shaped portion. According to this structure, since the formation positions of the spear-shaped portion and the anti-misinsertion portion are different in the circumferential direction, the anti-misinsertion portion will not come into contact with the spear-shaped portion during the insertion of the shielding terminal into the housing. A chamfering process to prevent damage to the spear-shaped portion is unnecessary for the anti-misinsertion portion, thus reducing the manufacturing time of the shielding terminal.

[0038] [Details of specific embodiments of this disclosure]

[0039] [Example 1]

[0040] Reference Figures 1-11 The present invention describes a connector device according to Embodiment 1, which embodies this disclosure. The invention is not limited to these illustrations, but is shown by the claims, including all modifications within the meaning and scope of the claims. In Embodiment 1, regarding the front-to-back direction, Figure 1 , 2 In sections 4-7 and 10, the direction F is defined as forward. The forward / backward direction and the axis direction are used synonymously. Regarding the up / down direction, ... Figures 1-3In sections 6, 8-11, the direction H is defined as upward. Regarding the left and right directions, ... Figures 1-5 In 8, 9, and 11, the R direction is defined as the right.

[0041] The connector assembly includes a first shielded connector 10 and a second shielded connector 70 that can be engaged and disengaged in the front-to-back direction. For example... Figure 1 As shown, the first shielded connector 10 is generally elongated in the front-to-back direction. The first shielded connector 10 includes a housing 11 and a first shielded terminal 20.

[0042] The housing 11 is a synthetic resin component that is generally elongated in the front-to-back direction. For example... Figure 5 , 6 As shown in Figures 8 and 9, a terminal storage chamber 12 for accommodating the first shielding terminal 20 is formed within the housing 11. Figure 8 , 9 As shown, when viewed from the rear, the terminal housing 12 is circular. Figure 6 , 8 As shown in Figure 9, a spear-shaped portion 13 is formed at the lower end of the terminal receiving chamber 12. The spear-shaped portion 13 is formed in a cantilever shape extending forward and can be elastically deformed in the radial direction. An anti-dislodgement protrusion 14 is formed on the spear-shaped portion 13, protruding radially inward. The rear end of the terminal receiving chamber 12 is opened on the rear surface of the housing 11 as a terminal insertion port 15.

[0043] like Figure 8 , 9 As shown, a retraction groove 16 and a rotation limiting groove 17 are formed on the inner peripheral surface of the terminal receiving chamber 12. Both the retraction groove 16 and the rotation limiting groove 17 are formed in a straight line extending in the front-rear direction and are open at the rear end face of the housing 11. In a rear view, the retraction groove 16 is positioned slightly to the lower left of the upper end of the terminal receiving chamber 12 and slightly above the center height of the terminal receiving chamber 12. The rotation limiting groove 17 is positioned slightly to the lower right of the upper end of the terminal receiving chamber 12 and slightly above the center height of the terminal receiving chamber 12.

[0044] like Figure 6 , 10 As shown, the first shielding terminal 20 is constructed by assembling a first inner conductor 21, a first dielectric body 22, and a first outer conductor 23. The first inner conductor 21 is a cylindrical female terminal. The core wire 61 of a coaxial cable 60 is connected to the rear end of the first inner conductor 21. The first inner conductor 21 is housed inside the first dielectric body 22.

[0045] The first outer conductor 23 is a cylindrical component that completely surrounds the first dielectric body 22. For example... Figure 1 , 2As shown in Figures 4-6, the first outer conductor 23 is constructed by combining a front cylindrical member 24 that orients the axis in the front-rear direction and a rear cylindrical member 50 that orients the axis in the front-rear direction. The front cylindrical member 24 is constructed from a metal sheet 25 that has been stamped and cut into a predetermined shape. Figure 2 , 5 As shown, the front cylindrical member 24 is formed into a cylindrical single component by bending a metal sheet 25 and fitting the concave-convex circumferential edges 25E of the metal sheet 25 together. The center of the circle of the front cylindrical member 24 (first outer conductor 23) in the main view is defined as the axis C (refer to...). Figure 3 , 8 9).

[0046] The front cylindrical member 24 has a small-diameter portion 26, an expanded-diameter portion 27, and a large-diameter portion 28 whose outer diameter is larger than that of the small-diameter portion 26. The small-diameter portion 26 is a cylindrical portion that forms the front end side portion of the first outer conductor 23 and the front cylindrical member 24. A pair of fixed contact portions 29 and a spring assembly 30 are formed in the small-diameter portion 26. The pair of fixed contact portions 29 are arranged circumferentially spaced at the lower end of the small-diameter portion 26 (front cylindrical member 24). The fixed contact portions 29 are contacts that do not shift relative to the small-diameter portion 26. The pair of fixed contact portions 29 are only arranged within the minor arc range of the front cylindrical member 24.

[0047] like Figure 3 , 11 As shown, the spring assembly 30 consists of four spring portions 31 arranged at circumferential intervals. Each spring portion 31 is elastically deformable in the radial direction. Each spring portion 31 has a movable contact portion 32 protruding radially outward. The spring assembly 30 is disposed only within the greater arc range of the small diameter portion 26. A pair of fixed contact portions 29 and four movable contact portions 32 are arranged separately in different regions in the circumferential direction of the small diameter portion 26.

[0048] The enlarged diameter portion 27 is located at the rear end of the small diameter portion 26 and extends radially outward in a flange-like manner. The large diameter portion 28 is a cylindrical portion that extends coaxially rearward from the outer periphery of the enlarged diameter portion 27, forming the rear end portion of the front cylindrical member 24. The large diameter portion 28 has an anti-misinsertion portion 35, a rotation limiting portion 42, and a pair of wobbling elimination protrusions 44.

[0049] like Figure 1 , 2 As shown in Figure 4, the anti-misinsertion part 35 is disposed at the rear end 24R of the large-diameter part 28 (front cylindrical member 24). The rear end 24R is a part shared by the front cylindrical member 24 and the large-diameter part 28.

[0050] like Figure 3 ,8 As shown in Figure 9, in the circumferential direction, the anti-misinsertion portion 35 is positioned slightly to the lower left of the upper end of the large-diameter portion 28 and slightly above the axis C of the large-diameter portion 28 (first outer conductor 23). In other words, the anti-misinsertion portion 35 is positioned slightly to the upper left of the axis C of the first outer conductor 23. When viewed from the front view of the front cylindrical member 24 parallel to the axis, the anti-misinsertion portion 35 is positioned within the forming range of the spring assembly 30.

[0051] like Figure 1 , 4 As shown, a pair of circumferentially spaced slits 36 are formed in the area where the anti-misinsertion portion 35 is formed in the large-diameter portion 28. The pair of slits 36 extend in a straight line in the front-rear direction and open at the rear end edge of the large-diameter portion 28. The portion between the pair of slits 36 in the large-diameter portion 28, that is, the portion divided by the pair of slits 36, functions as the anti-misinsertion portion 35.

[0052] like Figure 1 , 4 As shown in Figure 7, a first bend 37 is formed in the large-diameter portion 28. The first bend 37 is along an imaginary line connecting the front ends of a pair of slits 36 to each other (illustration omitted). An anti-misinsertion portion 35 extends rearward from the first bend 37 in a cantilever shape. The anti-misinsertion portion 35 has a second bend 38 located rearward and radially outward of the first bend 37. Figure 4 , 7 As shown, the extended end 35E of the anti-misinsertion portion 35 is located rearward and radially inward than the second bend portion 38. The extended end 35E is housed inside the first opening 40 formed between a pair of slits 36. When viewed circumferentially, the anti-misinsertion portion 35 is bent into a mountain-shaped (inverted V-shape) form, protruding radially outward from the outer periphery of the large-diameter portion 28.

[0053] The portion between the first bend 37 and the second bend 38 on the outer surface of the anti-misinsertion part 35 functions as an abutment surface 39. For example... Figure 7 As shown, the outer surface of the portion of the large-diameter portion 28 adjacent to the abutment surface 39, separated by the first bend 37, forms an obtuse angle with the abutment surface 39. The abutment surface 39 constitutes the front surface of the anti-misinsertion portion 35. The surfaces along the outer periphery of the anti-misinsertion portion 35 and intersecting with the outer surface of the anti-misinsertion portion 35 (the two side surfaces and the rear end surface of the anti-misinsertion portion 35) are the shearing surfaces 25S and 25R (fracture surfaces) that are cut by the tool during the stamping of the metal sheet 25 (see reference). Figures 2-47). The shear surfaces 25S and 25R face in a direction other than forward. The shear surface 25S along the side edge of the anti-misinsertion part 35 faces circumferentially. The shear surface 25R along the rear end edge of the anti-misinsertion part 35 faces in an inclined direction relative to the axis. The abutment surface 39 is a smooth surface formed in the rolling process before stamping, and faces obliquely forward.

[0054] like Figure 1 , 4 As shown, the rotation limiting part 42, like the anti-misinsertion part 35, is disposed at the rear end 24R of the large-diameter part 28 (front cylindrical member 24). Figure 3 , 8 As shown in Figure 9, in the circumferential direction, the rotation limiting part 42 is positioned slightly to the lower right of the upper end of the large-diameter part 28 and slightly above the axis C of the large-diameter part 28 (the first outer conductor 23). In other words, the rotation limiting part 42 is positioned slightly to the upper right of the axis C of the first outer conductor 23. In the front view, the rotation limiting part 42 is positioned within the forming range of the spring assembly 30. Figure 4 As shown, the rotation limiting part 42 is a portion of the large-diameter part 28 that bends along the crease 43 in the front-rear direction and protrudes radially outward from the outer periphery of the large-diameter part 28. The rotation limiting part 42 is flat and is arranged so that the thickness direction is circumferential.

[0055] like Figure 5 As shown, a pair of wobbling-eliminating protrusions 44 are disposed at the rear end 24R of the large-diameter portion 28. As... Figure 3 , 8 As shown in Figure 9, when viewing the front cylindrical member 24 along the axial direction, one type of wobbling-eliminating protrusion 44 is positioned on the opposite side of the anti-misinsertion portion 35, separated by the axis C of the front cylindrical member 24. The other type of wobbling-eliminating protrusion 44 is positioned on the opposite side of the rotation-limiting portion 42, also separated by the axis C of the front cylindrical member 24. The wobbling-eliminating protrusion 44 is a portion that protrudes radially outward from the outer periphery of the large-diameter portion 28.

[0056] like Figure 1 , 2 As shown in Figure 6, the rear cylindrical member 50 has a cylindrical main body portion 51 and a cylindrical connecting portion 52 with a diameter smaller than that of the cylindrical main body portion 51. The cylindrical main body portion 51 is a cylindrical portion that constitutes the rear end side portion of the first outer conductor 23 and most of the rear cylindrical member 50. The cylindrical main body portion 51 is conductively fixed to the shielding member 62 (braided wire) of the coaxial cable 60. The cylindrical connecting portion 52 is a cylindrical portion that protrudes forward from the front end of the cylindrical main body portion 51. The front end portion 50F of the rear cylindrical member 50 (cylindrical connecting portion 52) is coaxially embedded in the rear end portion 24R of the front cylindrical member 24. The front end portion 50F is a shared portion in the rear cylindrical member 50 and the cylindrical connecting portion 52.

[0057] The front end portion 50F of the rear cylindrical member 50 and the rear end portion 24R of the front cylindrical member 24 are conductively fixed together on four spot weld portions 53 arranged circumferentially spaced apart. Figure 4 As shown, two of the four spot weld portions 53 are arranged circumferentially between the anti-misinsertion portion 35 and the rotation limiting portion 42. Figure 5 As shown, the remaining two spot welds 53 are arranged circumferentially between a pair of wobbling-eliminating protrusions 44.

[0058] like Figure 4 As shown, the rear end portion 24R of the front cylindrical member 24 has a first opening 40 formed by forming an anti-misinsertion portion 35 and a second opening 54 formed by forming a rotation limiting portion 42. The front end portion 50F of the rear cylindrical member 50 is arranged to overlap coaxially with respect to the rear end portion 24R of the front cylindrical member 24 from the inner circumferential side. The front end portion 50F of the rear cylindrical member 50 is located in a position that closes the first opening 40 and the second opening 54 from the inside.

[0059] like Figure 7 As shown, the area on the outer peripheral surface of the front end portion 50F of the rear cylindrical member 50 (cylindrical connecting portion 52) that closes the first opening 40 functions as a support portion 55. The support portion 55 is located radially inward relative to the extended end portion 35E of the anti-misinsertion portion 35 located within the first opening 40. The shear surface 25R of the rear end of the extended end portion 35E is located obliquely forward relative to the support portion 55. Thus, the edge portion 56, which is the boundary between the rear shear surface 25R and the inner surface of the extended end portion 35E, is located radially outward relative to the support portion 55.

[0060] like Figure 6 As shown, a circumferential groove 57 is formed between the rear end portion 24R of the large-diameter portion 28 and the front end portion 50F of the cylindrical body portion 51 of the rear cylindrical member 50, due to the difference in diameter between the outer diameter of the large-diameter portion 28 and the outer diameter of the cylindrical connecting portion 52. The groove 57 is shaped to recess the entire circumference of the outer peripheral surface of the first outer conductor 23. The lower end portion of the rear end portion 24R of the front cylindrical member 24 facing the groove 57 functions as a locking portion 58 that can be locked onto the spear-shaped portion 13. The locking portion 58 is formed on the outer peripheral surface of the first outer conductor 23 and is located only in the area between a pair of fixed contact portions 29 in the circumferential direction.

[0061] When assembling the first shielding terminal 20 onto the housing 11, the first shielding terminal 20 is inserted into the terminal receiving chamber 12 from the rear of the housing 11. At this time, as... Figure 8As shown, when the first shielding terminal 20 is correctly positioned relative to the housing 11 in the circumferential direction, when the first shielding terminal 20 is inserted and advanced a certain distance, the mis-insertion part 35 is prevented from entering the retraction groove 16, and the rotation limiting part 42 enters the rotation limiting groove 17. When the first shielding terminal 20 is correctly oriented, the mis-insertion part 35 is located in a different area in the circumferential direction than the spear-shaped part 13. During the insertion of the first shielding terminal 20 into the terminal receiving chamber 12, the lower end of the first outer conductor 23, where the fixed contact part 29 is formed, slides against the anti-dislodgement protrusion 14 of the spear-shaped part 13, causing the spear-shaped part 13 to elastically deform radially outward.

[0062] like Figure 6 As shown, when the first shielding terminal 20 reaches the correct insertion position, the spear-shaped portion 13 elastically resets, so that the anti-dislodgement protrusion 14 can be locked from the rear relative to the locking portion 58. Even if the first shielding terminal 20 is pulled rearward, it remains in an anti-dislodgement state relative to the housing 11 because it is locked by the locking portion 58 against the anti-dislodgement protrusion 14. Through the above, the assembly of the first shielding terminal 20 relative to the housing 11 is completed.

[0063] If the first shielding terminal 20 is to be inserted relative to the housing 11 in an incorrect orientation, such as Figure 7 As shown, during insertion, the anti-misinsertion part 35 prevents interference with the housing 11. Specifically, the contact surface 39 of the anti-misinsertion part 35 abuts against the opening edge of the terminal insertion port 15 of the terminal receiving chamber 12. Unlike the sheared surfaces 25S and 25R, the contact surface 39 that abuts against the opening edge of the terminal insertion port 15 is a smooth surface. Therefore, the opening edge of the terminal insertion port 15, which is made of synthetic resin, will not be damaged by the metal anti-misinsertion part 35.

[0064] The second shielded connector 70 has a second shielded terminal 71, which is generally elongated in the front-to-back direction. For example... Figure 10 As shown, the second shielding terminal 71 is constructed by assembling a second inner conductor 72, a second dielectric body 73, and a second outer conductor 74. The second inner conductor 72 is a male terminal with a tab 75. A core wire (not shown) of a coaxial cable (not shown) is connected to the second inner conductor 72. The second inner conductor 72 is housed inside the second dielectric body 73.

[0065] The second outer conductor 74 is a cylindrical member that completely surrounds the second dielectric body 73. The top end of the second outer conductor 74 functions as a cylindrical fitting portion 76. The inner diameter of the fitting portion 76 is set to be smaller than the inner diameter of the imaginary circle (not shown) circumscribed outside at least three of the two fixed contact portions 29 and 32 of the four movable contact portions 32 when the spring portion 31 is in a free state without elastic deformation.

[0066] When the first shield terminal 20 of the first shield connector 10 and the second shield terminal 71 of the second shield connector 70 are engaged, as follows: Figure 10 As shown, the first inner conductor 21 and the second inner conductor 72 are connected, and the fitting portion 76 of the second outer conductor 74 is fitted onto the first outer conductor 23. When the first outer conductor 23 and the second outer conductor 74 are fitted together, the four spring portions 31 are elastically deformed radially inward, as... Figure 11 As shown, six contact portions (a pair of fixed contact portions 29 and four movable contact portions 32) are in contact with the inner circumferential surface of the fitting portion 76. At this time, the elastic restoring force of the four spring portions 31 generates a radially inward reaction force from the fitting portion 76 on the four spring portions 31. Through these reaction forces, the six contact portions 29 and 32 and the fitting portion 76 are connected by a predetermined contact pressure.

[0067] The first shielded connector 10 of this embodiment 1 includes a housing 11 and a first shielded terminal 20. The first shielded terminal 20 has a first inner conductor 21, a first dielectric body 22, and a first outer conductor 23. The first shielded terminal 20 is inserted into the housing 11 from the rear. The first outer conductor 23 is made of a metal plate 25 and is constructed by connecting a front cylindrical member 24 and a rear cylindrical member 50 with their axes pointing in the front-rear direction. The front cylindrical member 24 (one cylindrical member) of the front cylindrical member 24 and the rear cylindrical member 50 has an integrally formed anti-misinsertion portion 35, which is formed in a cantilevered shape and bent in a radially outward manner. The front surface (abutment surface 39) of the anti-misinsertion portion 35 is composed only of surfaces other than the shear surfaces 25S and 25R. A support portion 55 is formed in the rear cylindrical member 50 (another cylindrical member) of the front cylindrical member 24 and the rear cylindrical member 50. The support portion 55 supports the extended end 35E of the anti-misinsertion portion 35.

[0068] According to this structure, in the event that the insertion posture of the first shielding terminal 20 relative to the housing 11 is incorrect in the circumferential direction, the front surface (abutment surface 39) of the mis-insertion part 35 is prevented from contacting the rear surface of the housing 11. Here, since the abutment surface 39 is composed only of surfaces other than the shear surfaces 25S and 25R, the shear surfaces 25S and 25R of the mis-insertion part 35 are prevented from contacting the rear surface of the housing 11. Therefore, damage to the rear surface of the synthetic resin housing 11 by the shear surfaces 25S and 25R of the metal mis-insertion part 35 can be prevented.

[0069] The rear end 24R of the front cylindrical member 24 is externally fitted into the front end 50F of the rear cylindrical member 50. The anti-misinsertion portion 35 is formed into a rearward cantilever shape and bent into a V-shape. The extended end 35E of the anti-misinsertion portion 35 is supported by the outer peripheral surface (support portion 55) of the rear cylindrical member 50. When the anti-misinsertion portion 35 contacts the rear surface of the housing 11, a rearward reaction force is applied to the anti-misinsertion portion 35 from the housing 11 side. Due to this reaction force, the anti-misinsertion portion 35 will shift radially inward with its front end (first bent portion 37) as the fulcrum. Accompanying this shift, the edge portion 56 of the extended end 35E of the anti-misinsertion portion 35 abuts against the outer peripheral surface (support portion 55) of the rear cylindrical member 50 in an engaging manner. Thus, the anti-misinsertion portion 35 can be prevented from deforming too much radially inward due to the reaction force from the housing 11 side.

[0070] The front cylindrical member 24 and the rear cylindrical member 50 are fixed together at the spot weld portion 53 in a coaxial fit, with the rear end portion 24R of the front cylindrical member 24 and the front end portion 50F of the rear cylindrical member 50 in the same position. A pair of slits 36 extending in the front-rear direction are formed at the front end portion 50F of the front cylindrical member 24. The mis-insertion prevention portion 35 is formed by the portion in the front cylindrical member 24 divided by the pair of slits 36. According to this structure, even if the length of the slits 36 is increased to increase the radial protrusion of the mis-insertion prevention portion 35, a wider setting area of ​​the spot weld portion 53 can be ensured.

[0071] The rear end portion 24R of the front cylindrical member 24 is externally fitted into the front end portion 50F of the rear cylindrical member 50. The front end portion 50F of the rear cylindrical member 50 closes at least a portion of the first opening 40 formed between a pair of slits 36. According to this structure, in the region where the anti-misinsertion portion 35 is formed in the first outer conductor 23, the area of ​​the opening region connecting the interior and exterior of the first outer conductor 23 is reduced, or the opening region connecting the interior and exterior of the first outer conductor 23 is not formed. Therefore, the reduction in shielding function caused by the formation of the anti-misinsertion portion 35 can be suppressed.

[0072] In the region on the outer peripheral surface of the first outer conductor 23 opposite to the axis (axis C) of the first outer conductor 23 to the anti-misinsertion portion 35, a wobbling-eliminating protrusion 44 is formed in a radially outward protrusion. According to this structure, by abutting the wobbling-eliminating protrusion 44 against the inner peripheral surface of the housing 11 (terminal receiving chamber 12), the position of the first shielding terminal 20 within the housing 11 is shifted in the same direction as the protrusion direction of the anti-misinsertion portion 35. Therefore, even when the radial protrusion dimension of the anti-misinsertion portion 35 is small or the difference between the outer diameter of the first shielding terminal 20 and the inner diameter of the terminal receiving chamber 12 is large, the incorrect insertion posture of the first shielding terminal 20 can be detected.

[0073] A locking portion 58 is formed on the outer peripheral surface of the first shielding terminal 20, positioned rearward of the anti-misinsertion portion 35. A spear-shaped portion 13 is formed within the housing 11, and the spear-shaped portion 13 locks against the locking portion 58 to prevent the first shielding terminal 20 from dislodging in the inserted state. When the first shielding terminal 20 is inserted with the correct orientation relative to the housing 11, the anti-misinsertion portion 35 is positioned circumferentially in a region different from the spear-shaped portion 13. According to this structure, because the formation positions of the spear-shaped portion 13 and the anti-misinsertion portion 35 are different in the circumferential direction, the anti-misinsertion portion 35 will not contact the spear-shaped portion 13 during the insertion of the first shielding terminal 20 into the housing 11. The chamfering process for preventing damage to the spear-shaped portion 13 is unnecessary for the anti-misinsertion portion 35, thus reducing the manufacturing time of the first shielding terminal 20.

[0074] The first shielded connector 10 of this embodiment 1 includes a first shielded terminal 20 and a housing 11. The first shielded terminal 20 has a first inner conductor 21, a first dielectric body 22, and a first outer conductor 23. The first shielded terminal 20 is inserted into the housing 11 from the rear. An anti-misinsertion portion 35 is formed on the outer peripheral surface of the first shielded terminal 20, which abuts against the rear surface of the housing 11 when the insertion posture of the first shielded terminal 20 relative to the housing 11 is incorrect. A locking portion 58 is formed on the outer peripheral surface of the first shielded terminal 20 at a position rearward than the anti-misinsertion portion 35. A spear-shaped portion 13 is formed inside the housing 11, and the first shielded terminal 20 in the inserted state is prevented from dislodging by locking the locking portion 58 against the spear-shaped portion 13. When the first shielded terminal 20 is inserted with the correct orientation relative to the housing 11, the anti-misinsertion portion 35 is arranged in a different area in the circumferential direction than the spear-shaped portion 13. According to this structure, during the insertion of the first shielding terminal 20 into the housing 11, the anti-misinsertion part 35 will not come into contact with the spear-shaped part 13. The anti-misinsertion part 35 does not need to undergo a chamfering process to prevent damage to the spear-shaped part 13, thus reducing the manufacturing time of the first shielding terminal 20.

[0075] The first outer conductor 23 is made of a metal plate 25. The first outer conductor 23 is formed into a cylinder with the circumferential edges 25E of the metal plates 25 abutting each other and the axis pointing in the front-rear direction. A spring assembly 30 is disposed in the first outer conductor 23 in a region forward of the anti-misinsertion portion 35. The spring assembly 30 is composed of multiple spring portions 31 that can elastically deform radially and can contact the second outer conductor 74 (the opposite outer conductor). The anti-misinsertion portion 35 is disposed only within the circumferential region of the spring assembly 30 in the first outer conductor 23. With this structure, the circumferential spear-shaped portion 13 can be positioned in a region different from the spring assembly 30. Therefore, interference between the spear-shaped portion 13 and the spring portion 31 can be avoided during the insertion of the first shielding terminal 20 into the housing 11.

[0076] A fixed contact portion 29 is formed in the first outer conductor 23 at a position closer to the circumferential edge 25E than the spring assembly 30 in the circumferential direction, allowing it to contact the second outer conductor 74 (the opposite outer conductor). When the spring portion 31 and the fixed contact portion 29 contact the second outer conductor 74, stress concentrates on the elastically deformed spring portion 31. The stress generated at the circumferential edge 25E where the fixed contact portion 29 is formed in the metal plate 25 is suppressed, thus preventing misalignment between the circumferential edges 25E. Therefore, deformation of the first outer conductor 23 caused by misalignment of the circumferential edges 25E can be suppressed.

[0077] A pair of slits 36 extending in the front-rear direction are formed on the first outer conductor 23. The anti-misinsertion portion 35 is shaped to bend the portion of the first outer conductor 23 divided by the pair of slits 36. A portion of the area between the pair of slits 36 in the first outer conductor 23 becomes a gap area (first opening 40) by bending the anti-misinsertion portion 35. Here, the slits 36 are shaped to extend in the front-rear direction rather than in the circumferential direction, so even if the length of the slits 36 is increased to increase the radial protrusion of the anti-misinsertion portion 35, the gap area (first opening 40) between the slits 36 will not expand circumferentially. Therefore, during the insertion of the first shielding terminal 20 into the housing 11, interference between the opening edge of the gap area (first opening 40) between the slits 36 and the spear-shaped portion 13 can be prevented.

[0078] [Other Embodiments]

[0079] This invention is not limited to the embodiments described above and illustrated in the drawings, but is illustrated by the claims. This invention includes all modifications within the meaning and scope of the claims, as well as the embodiments described below.

[0080] To prevent accidental insertion, the part can also be a shape other than a V-shape.

[0081] The part designed to prevent accidental insertion can also be cantilevered and extend forward.

[0082] Alternatively, the anti-misinsertion part can be formed on the rear cylindrical member, and the extended end of the anti-misinsertion part can be supported by the front cylindrical member.

[0083] The anti-misinsertion part can also be a shape in which the part protruding from the rear end edge of the front cylindrical member (one cylindrical member) is bent backward.

[0084] At least a portion of the anti-misinsertion part may also be located in the circumferential direction outside the forming area of ​​the spring assembly.

[0085] The slit used to form the part that prevents accidental insertion can also be shaped to extend circumferentially.

[0086] The outer conductor can also be designed to eliminate protrusions and prevent wobbling.

[0087] The fixed contact portion can also be arranged circumferentially within the area forming the spring assembly.

[0088] The rear cylindrical member (another cylindrical member) may also be a form that does not close part or the entire opening formed between the slits.

[0089] The front end of the rear cylindrical member (another cylindrical member) can also be externally fitted into the rear end of the front cylindrical member (another cylindrical member).

[0090] [Other Public Information]

[0091] The connector described in Japanese Patent Application Publication No. 2019-114489 addresses the following issue: During the insertion of the terminal component, the second stabilizing portion slides against the spear-shaped portion, causing the spear-shaped portion to elastically deform. At this time, to prevent the spear-shaped portion from being damaged by the shearing surface of the second stabilizing portion, a chamfered surface is formed at the front end of the second stabilizing portion. Therefore, a process for forming the chamfered surface is required when manufacturing the terminal component.

[0092] The shielded connector described below was developed based on the above circumstances, with the aim of reducing the manufacturing time of the shielded terminals.

[0093] As a solution to the aforementioned problem, other disclosed shielded connectors possess the following features:

[0094] Shielded terminals have an inner conductor, a dielectric body, and an outer conductor; and

[0095] The housing, wherein the shielding terminal is inserted into the housing from the rear.

[0096] An anti-misinsertion portion is formed on the outer peripheral surface of the shielding terminal. When the shielding terminal is inserted incorrectly relative to the housing, the anti-misinsertion portion abuts against the rear surface of the housing.

[0097] A locking portion is formed on the outer peripheral surface of the shielding terminal at a position rearward than the anti-misinsertion portion.

[0098] A spear-shaped portion is formed inside the housing, and the spear-shaped portion prevents the shielding terminal from disengaging when inserted by locking onto the locking portion.

[0099] The anti-misinsertion portion is arranged in a different region in the circumferential direction than the spear-shaped portion.

[0100] According to other disclosed shielded connectors, as an effect of the invention, the manufacturing time of the shielded terminals can be reduced.

[0101] Hereinafter, other disclosed embodiments are described as specific examples of the present invention. Any combination of the following embodiments without contradiction is also included in the specific embodiments of the present invention.

[0102] Other publicly disclosed shielded connectors

[0103] (1) The device comprises: a shielding terminal having an inner conductor, a dielectric body, and an outer conductor; and a housing, wherein the shielding terminal is inserted into the housing from the rear, an anti-misinsertion portion is formed on the outer peripheral surface of the shielding terminal, the anti-misinsertion portion abuts against the rear surface of the housing when the shielding terminal is inserted incorrectly relative to the housing, a locking portion is formed on the outer peripheral surface of the shielding terminal at a position rearward of the anti-misinsertion portion, and a spear-shaped portion is formed inside the housing, thereby preventing the shielding terminal from dislodging in the inserted state by locking the locking portion against the spear-shaped portion, and the anti-misinsertion portion being arranged in a different region in the circumferential direction from the spear-shaped portion. According to this structure, the anti-misinsertion portion will not contact the spear-shaped portion during the insertion of the shielding terminal into the housing. A chamfering process to prevent damage to the spear-shaped portion is unnecessary for the anti-misinsertion portion, thus reducing the manufacturing time of the shielding terminal.

[0104] (2) In (1), preferably, the outer conductor is made of a metal sheet and is formed into a cylindrical shape such that the circumferential edges of the metal sheet are joined together and the axis is oriented in the front-rear direction. A spring assembly is arranged in the outer conductor in a region forward of the anti-misinsertion part. The spring assembly is composed of multiple spring portions that can be elastically deformed in the radial direction and can contact the opposite outer conductor. The anti-misinsertion part is arranged in the outer conductor only within the forming range of the spring assembly in the circumferential direction. According to this structure, the forming position of the circumferential spear-shaped part can be set in a region different from that of the spring assembly. Thus, interference between the spear-shaped part and the spring portion can be avoided during the insertion of the shielding terminal into the housing.

[0105] (3) In (2), preferably, a fixed contact portion is formed in the outer conductor at a position closer to the circumferential edge of the spring assembly in the circumferential direction, capable of contacting the opposite outer conductor. According to this structure, when the spring portion and the fixed contact portion contact the opposite outer conductor, stress concentrates on the elastically deforming spring portion. The stress generated at the circumferential edge of the metal sheet where the fixed contact portion is formed is suppressed to a smaller extent, thus reducing the likelihood of misalignment between the circumferential edges. Therefore, deformation of the outer conductor caused by misalignment between the circumferential edges can be suppressed.

[0106] (4) In (1) to (3), it is preferable that a pair of slits extending in the front-back direction are formed in the outer conductor, and the anti-misinsertion portion is shaped such that the portion of the outer conductor divided by the pair of slits is bent. According to this structure, a part of the area between the pair of slits in the outer conductor becomes a gap area by bending the anti-misinsertion portion. Here, the slits are shaped to extend in the front-back direction rather than in the circumferential direction, so even if the length of the slits is increased to increase the radial protrusion of the anti-misinsertion portion, the gap area between the slits will not expand circumferentially. Thus, during the insertion of the shielding terminal, interference between the opening edge of the gap area between the slits and the spear-shaped portion can be prevented.

[0107] Explanation of reference numerals in the attached figures

[0108] 10…First shielded connector (shielded connector); 11…Housing; 12…Terminal storage chamber; 13…Spear-shaped part; 14…Anti-disengagement protrusion; 15…Terminal insertion port; 16…Retraction groove; 17…Rotation limiting groove; 20…First shielded terminal (shielded terminal); 21…First inner conductor (inner conductor); 22…First dielectric body (dielectric body); 23…First outer conductor (outer conductor); 24…Front cylindrical member (one cylindrical member); 24R…Rear end (end of one cylindrical member); 25…Metal sheet; 25E…Circumferential edge; 25R…Shear surface; 25S…Shear surface; 26…Small diameter part; 27…Expanded diameter part; 28…Large diameter part; 29…Fixed contact part; 30…Spring assembly; 31…Spring part; 32…Modible contact part; 35…Anti-misinsertion part; 35E…Extension end of anti-misinsertion part 36…slit; 37…first bend; 38…second bend; 39…abutment surface (front surface of the anti-misinsertion part); 40…first opening (opening); 42…rotation limiting part; 43…crease; 44…shaking elimination protrusion; 50…rear cylindrical member (another cylindrical member); 50F…front end of the rear cylindrical member (end of the other cylindrical member); 51…cylindrical main body; 52…cylindrical connecting part; 53…spot weld; 54…second opening; 55…support part; 56…edge part; 57…groove part; 58…locking part; 60…coaxial cable; 61…core wire; 62…shielding member; 70…second shielding connector; 71…second shielding terminal; 72…second inner conductor; 73…second dielectric body; 74…second outer conductor; 75…protrusion; 76…fitting part; C…axis.

Claims

1. A shielded connector, comprising: a shield terminal having an inner conductor, a dielectric body, and an outer conductor; and a housing into which the shield terminal is inserted from the rear, wherein the outer conductor is composed of a metal plate material, is composed of two cylindrical members whose axes are oriented in the front-rear direction by being connected in the front-rear direction, one of the two cylindrical members has a misinsertion prevention portion integrally formed therein, the misinsertion prevention portion is formed in a shape that extends in a cantilevered manner and is bent in a manner that protrudes to the radial outside, a front surface of the misinsertion prevention portion is composed only of a surface other than a shear surface, the other of the two cylindrical members has a support portion formed therein that supports an extended end portion of the misinsertion prevention portion.

2. The shielded connector according to claim 1, wherein a rear end portion of the one cylindrical member is fitted to a front end portion of the other cylindrical member, the misinsertion prevention portion is formed in a shape that extends in a cantilevered manner to the rear and is bent in a V shape, and the extended end portion of the misinsertion prevention portion is supported by an outer peripheral surface of the other cylindrical member.

3. The shielded connector according to claim 1 or claim 2, wherein the two cylindrical members are fixed at a spot-welded portion in a state in which end portions of the two cylindrical members are coaxially fitted to each other, a pair of slits that extend in the front-rear direction are formed in the end portion of the one cylindrical member, and the misinsertion prevention portion is composed of a portion of the one cylindrical member that is divided by the pair of slits.

4. The shielded connector according to claim 1 or claim 2, wherein an end portion of the one cylindrical member is fitted to an end portion of the other cylindrical member, a pair of slits that extend in the front-rear direction are formed in the end portion of the one cylindrical member, the misinsertion prevention portion is composed of a portion of the one cylindrical member that is divided by the pair of slits, and the end portion of the other cylindrical member closes at least a portion of an opening portion that is formed between the pair of slits.

5. The shielded connector according to claim 1 or claim 2, wherein a wobble elimination protrusion that protrudes to the radial outside is formed in a region of an outer peripheral surface of the outer conductor that is opposite the misinsertion prevention portion with respect to an axis of the outer conductor.

6. The shielded connector according to claim 1 or claim 2, wherein a locking portion is formed in a position of an outer peripheral surface of the shield terminal that is further to the rear than the misinsertion prevention portion, a lance-shaped portion is formed in the housing that prevents the shield terminal in an inserted state from being removed by being locked to the locking portion, and the misinsertion prevention portion is disposed in a region that is different from the lance-shaped portion in the circumferential direction. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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