Shielded connector and method of assembling a shielded connector

Abstract

A shield connector has a wire and a first ground shell. The first ground shell has a first crimp portion that, after fastening, has a first circumference that covers an outer circumference of an insulation portion of the exposed wire, a second crimp portion that, after fastening, has a second circumference that is longer than the first circumference and covers an outer circumference of a shield portion of the wire, a third crimp portion that links the first crimp portion and the second end portion, and a protrusion portion that, in a case where the first end portion and the second end portion are in abutment, in a case where the third crimp portion and a prescribed region of a turn-back portion of the wire are in abutment and the leading end of the turn-back portion and a sleeve portion of the wire are moved in a direction away from an end surface of a sheath portion of the wire, restricts further movement of the sleeve portion by engaging with the end surface of the sleeve portion.

Description

Technical Field

[0001] This invention relates to connection reliability technology for shielded connectors. Background Technology

[0002] As a prior art for shielded connectors, there is, for example, Patent Document 1 (Japanese Patent Application Publication No. 2024-92558). Figure 1 and Figure 2 This diagram illustrates a shielded connector of the prior art. The female connector 2A consists of a shielding module 4A and an outer housing 40A that houses and retains the shielding module 4A. The shielding module 4A consists of an inner terminal 10A, an inner housing 20A, and an outer terminal 30A.

[0003] The inner terminal 10A has: a box-shaped connecting portion 11A disposed at the front end and electrically connected to the opposite terminal; and a fastening piece 12A that presses the conductor core wire 51A to the rear side of the connecting portion 11A. The inner terminal 10A is a female terminal into which the inner terminal of the male connector (not shown) is inserted into the hollow portion of the connecting portion 11A.

[0004] The inner housing 20A is made of insulating synthetic resin with a specified dielectric constant and has a generally cylindrical main body 21A. A pair of terminal housing chambers 22A are formed in the main body 21A in a through-type manner to house and hold the inner terminals 10A.

[0005] The outer terminal 30A integrally comprises: a generally rectangular cylindrical receiving portion 31A disposed at the front end to receive and hold the inner housing 20A; and a crimping portion 32A, which consists of a pair of fastening plates 33A and 34A arranged side by side in the front-rear direction behind the receiving portion 31A. The fastening plate 33A functions to crimp the shield 53A, and the fastening plate 34A functions to crimp the insulating sheath 54A of the shielded wire 50A.

[0006] The outer shell 40A is made of insulating synthetic resin and integrally has a generally square cylindrical main body 41A and a generally square cylindrical cover 42A disposed in front of the main body 41A with a diameter larger than that of the main body 41A. The cover 42A is inserted into and fitted into the outer shell of a male connector (not shown).

[0007] The hollow portion of the main body 41A is provided with a cantilever beam-shaped locking latch (not shown) that can elastically deform. The locking latch locks the protrusion 35A of the outer terminal 30A and has the function of retaining the outer terminal 30A (i.e., the shielding module 4A) housed in the outer casing 40A.

[0008] The upper end of the main body 41A is provided with a cantilever beam-shaped locking arm 44A that can elastically deform. A locking protrusion 45A protruding upward is provided in the approximately central area of ​​the locking arm 44A in the front-rear direction. Summary of the Invention

[0009] However, in the wire harness manufacturing process of a shielded connector with a structure like that in Patent Document 1, the position of the inner terminal (inner terminal) may deviate within the manufacturing tolerance range, resulting in the problem of unstable performance of the shielded connector.

[0010] In view of the above-mentioned issues, the present disclosure aims to provide a shielded connector capable of suppressing positional deviations of internal terminals.

[0011] To address the aforementioned issues, the shielded connector of this embodiment includes: a wire having a core wire; a first grounding shell, which is fastened to the end of the wire by abutting a first end, which is an open end, against a second end. The wire has: an insulating portion covering the outer periphery of the core wire; a sheath portion exposing one end of the insulating portion by a predetermined length and covering its outer periphery; a metal sleeve portion covering the outer periphery of the sheath portion by a predetermined length along the length of the shielded connector; and a shielding portion. The shielding portion includes a main body portion covering the outer periphery of the insulating portion from the inner periphery side of the sheath portion, and an end face covering one end of both the sheath portion and the sleeve portion, and a folded-back portion covering the outer periphery of the sleeve portion by a predetermined length along the length of the shielded connector. The first grounding shell has a first crimping portion, a second crimping portion, a third crimping portion, and a protrusion. The first crimping portion is a first region extending from a portion of the first end to a portion of the second end, having an annular shape with a first circumference after fastening, and covering the outer periphery of the exposed insulating portion. The second crimping portion is a second region extending from one part of the first end to another part of the second end. After tightening, it has an annular shape with a second circumference longer than the first circumference and covers the outer periphery of the shielding portion. The third crimping portion connects the first crimping portion and the second crimping portion from the first end to the second end. When the protrusion is tightened in such a way that the first end and the second end abut against each other, if the third crimping portion abuts against a predetermined area of ​​the folding portion and causes the front end of the folding portion and the sleeve portion to move away from the end face of the sheath portion, further movement of the sleeve portion is restricted by engaging with the end face of the sleeve portion.

[0012] Invention Effects

[0013] According to this embodiment, deviations in the position of the internal terminals can be suppressed. Attached Figure Description

[0014] Figure 1 This is a diagram showing a shielded connector from the prior art.

[0015] Figure 2 This is a diagram showing a shielded connector from the prior art.

[0016] Figure 3 This is a perspective view showing one embodiment of the shielded connector of this embodiment.

[0017] Figure 4 This is a perspective view of the shielded connector of this embodiment.

[0018] Figure 5 This is an unfolded perspective view of the shielding module in this embodiment.

[0019] Figure 6 It is Figure 4 A magnified view of a portion of the BB cross-section.

[0020] Figure 7 This is a three-dimensional view of the sleeve section before it is tightened, viewed from below.

[0021] Figure 8 This is a three-dimensional view of the signal contact before it is tightened, viewed from below.

[0022] Figure 9 This is a three-dimensional view of the first grounding shell before it is tightened, viewed from below.

[0023] Figure 10 This is a perspective view of the first grounding shell in the first shielding submodule before it is tightened, viewed from below.

[0024] Figure 11 This is a three-dimensional view taken from the top side of the second shielding submodule.

[0025] Figure 12 This is a perspective view of the first grounding shell in the shielding module before it is tightened, viewed from below.

[0026] Figure 13 Viewed from the front side Figure 12 The image.

[0027] Figure 14 It is Figure 13 A magnified view of a portion of the EE cross-section.

[0028] Figure 15 This is a three-dimensional view of the first grounding shell in the shielding module after it has been tightened, viewed from below.

[0029] Figure 16 Viewed from the front side Figure 15 The image.

[0030] Figure 17 It is Figure 16 A magnified view of a portion of the FF cross-section. Detailed Implementation

[0031] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. Furthermore, in the following description, structural parts with the same function will be labeled with the same symbols and repeated descriptions will be omitted. In this disclosure, unless otherwise specified, Figure 3 The explanation will be based on the following perspectives: +x direction is set to "right", -x direction to "left", +y direction to "back", -y direction to "forward", +z direction to "up", and -z direction to "down".

[0032] <Shielded Connector>

[0033] Figure 3 This is a perspective view showing one embodiment of the shielded connector of this embodiment. Figure 4 This is an unfolded perspective view of the shielded connector of this embodiment. The shielded connector 1 in this embodiment is a female connector, capable of being electrically connected by mating with a male connector (not shown) as a counterpart connector. The shielded connector 1 in this embodiment includes a second housing 80 and a shielding module 2.

[0034] (Second shell 80)

[0035] The second housing 80, made of insulating materials such as synthetic resin, is the outer housing of the shielded connector 1. The second housing 80 has: a generally elliptical cylindrical receiving portion 83 with a through hole; a generally cubic first box-shaped portion 84 located around the center of the receiving portion 83 along its length (y-axis direction); and a generally cuboid second box-shaped portion 85 located around the upper front side of the receiving portion 83. The shielding module 2 is inserted from the rear of the receiving portion 83. A latch (not shown) is provided within the receiving portion 83 to engage and hold the shielding module 2 in a predetermined position. The latch abuts against a positioning protrusion 64 of the first shielding sub-module 3 of the shielding module 2 inserted into the second housing 80, thereby positioning the shielding module 2. The second housing 80 houses and holds the shielding module 2 within itself. The second housing 80 engages with the opposite connector by inserting the front side of the receiving portion 83 and the second box-shaped portion 85 into the opposite connector.

[0036] The second housing 80 has a CPA 81 and a retainer 82. The CPA 81 and retainer 82 are insulating and, in this example, are made of synthetic resin. The CPA 81 is inserted into an opening 86 located at the upper rear of the first box-shaped portion 84, and functions as part of a locking mechanism to lock the engagement when the shielding connector 1 is engaged with the counterpart connector. The retainer 82 is inserted from an opening 87 located on the bottom surface (-z direction side) of the storage portion 83 and the first box-shaped portion 84, and functions as part of a locking mechanism to maintain the position of the shielding module 2.

[0037] (Shielding Module 2)

[0038] Figure 5 This is an unfolded perspective view of the shielding module according to this embodiment. The shielding module 2 includes a wire 10, a bracket 30, a signal contact 40, a first housing 50, a first grounding housing 60, and a second grounding housing 70. In this disclosure, the component that houses the second grounding housing 70 in the first grounding housing 60 is also referred to as the "first shielding sub-module 3". The first shielding sub-module 3 serves as an external terminal in the shielding module 2. The first shielding sub-module 3 is conductive and houses a portion of the second shielding sub-module 4. The first shielding sub-module 3 is shielded and connected to the shielding portion 13 of the wire 10. Furthermore, the component assembled from the wire 10, the bracket 30, the signal contact 40, and the first housing 50 is also referred to as the "second shielding sub-module 4". The second shielding sub-module 4 serves as an internal terminal in the shielding module 2.

[0039] [Wire 10]

[0040] The wire 10 has a conductive core wire 11, an insulation portion 12, an aluminum foil 15, a shielding portion 13, a sheath portion 14, and a sleeve portion 20. The core wire 11 of the wire 10 is crimped to the fastening portion 43 of the signal contact 40 (see reference). Figure 8 It is electrically connected to the signal contact 40. In addition, as described later, the sleeve portion 20 is combined with the wire 10, but the wire 10 can also be prepared without the sleeve portion 20, and the sleeve portion 20 is installed on the wire 10 during assembly.

[0041] The insulating portion 12 is an insulating member that covers the outer periphery of the core wire 11. In this example, the insulating portion 12 covers the outer periphery of a pair of core wires 11 such that one end (end 111) of the core wire 11 is exposed. The aluminum foil 15 covers the outer periphery of the pair of insulating portions 12 such that the end 111 is exposed. As in this example, the aluminum foil 15 may also cover the outer periphery by exposing a predetermined length of one end of the insulating portion 12 (the end on the end 111 side) in addition to the core wire 11. The shielding portion 13 covers the outer periphery of the insulating portion 12 through the aluminum foil 15 such that the end 111 is exposed. In this example, the shielding portion 13 is configured as a braided wire. As in this example, the shielding portion 13 may also cover the outer periphery by exposing a predetermined length of the end on the end 111 side of the insulating portion 12 in addition to the core wire 11. The sheathing portion 14 covers the shielding portion 13 such that the end 111 is exposed. The sheath portion 14 can also, as in this example, expose the end of the insulation portion 12 on the end 111 side for a predetermined length to cover the outer perimeter, in addition to the core wire 11.

[0042] Figure 6 It is Figure 4 A magnified view of a portion of the BB cross-section. Figure 6In this simplified representation, the core wire 11, insulation portion 12, and aluminum foil 15 are shown as a single component. The fold-back portion 131 of one end (end 111 side) of the core wire 11 in the shielding portion 13 covers the front end face 14a of the sheath portion 14, covers the front end face 203a and outer surface 20b of the sleeve portion 20, and is located on the side opposite to the end 111 side, i.e., the rear side. Figure 6 The position in the +y direction is shown. That is, the shielding part 13 includes: a main body part 132 that covers the outer periphery of the insulating part 12 from the inner periphery side of the sheath part 14; and a folded-back part 131 that covers the end face 14a of the sheath part 14 and the end face 203a of one end side of the sleeve part 20, respectively, and covers the outer periphery (outer surface 20b) of the sleeve part 20 for a predetermined length in the length direction (y-axis direction) of the shielding connector 1.

[0043] [Sleeve section 20]

[0044] Figure 7This is a perspective view of the sleeve portion before tightening, viewed from below. The sleeve portion 20 reinforces the area around the core wire 11. The sleeve portion 20 is a metal component that covers a predetermined length of the outer periphery of the sheath portion 14 along the longitudinal direction (y-axis direction) of the shielded connector 1. In this example, the sleeve portion 20 is a stainless steel component that covers the area around the sheath portion 14 with the end 111 exposed, and has a generally cylindrical shape. In this example, the sleeve portion 20 is formed based on a generally rectangular thin plate, and has end portions 201 and 202 as the ends in the long side direction (x-axis direction) of the rectangle, and end portions 203 and 204 as the ends in the short side direction (y-axis direction). The sleeve portion 20 achieves increased friction by providing a plurality of staggered concave grooves 205 side by side on both sides of the rectangle (inner surface 20a, outer surface 20b). The grooves 205 provided on the inner surface 20a increase the friction relative to the sheath portion 14. The groove 205 on the outer surface 20b increases the frictional force relative to the shielding portion 13. Furthermore, the groove 205 contributes to weight reduction while ensuring rigidity. Before assembly, the central portion of the sleeve portion 20 along its length (x-axis direction) is formed into a semi-cylindrical shape by stamping, so that a portion of the outer periphery of the sheath portion 14 is pre-surrounded by the bottom 206. The sleeve portion 20 has a protrusion 201a at the center of the end face of the end 201 and a notch 202a at the center of the end face of the end 202. By abutting the end faces of the end 201 and the end faces of the end 202, the protrusion 201a and the notch 202a engage, forming a ring that strengthens the sheath portion 14 surrounding the core wire 11. In other words, the sleeve portion 20 has an end portion 201 as one end and an end portion 202 as the opposite end portion 201, such that the end face of the end portion 201 and the end face of the end portion 202 are positioned in an abutting manner to tighten the sheath portion 14 in the circumferential direction. It should be noted that although the sleeve portion 20 is tightened to the extent of reinforcing the sheath portion 14 during the installation stage on the wire 10, the relative positional relationship between the sleeve portion 20 and the sheath portion 14 is not fixed because the sleeve portion 20 presses against the sheath portion 14.

[0045] [Standard 30]

[0046] Bracket 30 ( Figure 5 The end of the insulating portion 12 on the end 111 side is used for positioning the core wire 11 into the signal contact 40. The bracket 30 is a component consisting of a pair of generally cylindrical receiving portions 31 arranged side by side and integrated, each receiving portion 31 having a through hole through which the core wire 11 and the insulating portion 12 can be inserted. A groove 32 is provided at the front and a groove 33 is provided at the rear of the upper and lower surfaces of the bracket 30. In this example, the bracket 30 is die-cast. Alternatively, the bracket 30 can be made of synthetic resin, or it can be formed by metal plating of a component made of synthetic resin.

[0047] [Signal Contact 40]

[0048] Figure 8 This is a perspective view of the signal contact before tightening, viewed from below. The signal contact 40 is conductive and is an internal terminal of the shielding module 2. The core wire 11 is inserted into and tightened behind the signal contact 40, thereby crimping the core wire 11 to the signal contact 40. After tightening, the signal contact 40 has an elongated cylindrical shape with a through hole. By accepting direct insertion of the terminal of the opposite connector, the signal contact 40 becomes conductive with the terminal of the opposite connector, thus enabling the shielding connector 1 to conduct with the opposite connector. In this example, the signal contact 40 is made of copper alloy.

[0049] The signal contact 40 is a conductive member consisting of a front connecting portion 41, a rear fastening portion 43, and a connecting portion 42 that connects the connecting portion 41 and the fastening portion 43. The connecting portion 41 has a generally cylindrical shape, which gradually tapers (becomes smaller) as it moves forward from near the center of the connecting portion 41. The front end of the connecting portion 41 separates from the center of the connecting portion 41 into a front-end split shape, forming a pair of semi-cylindrical receiving portions 411 arranged side-by-side with their inner surfaces facing each other. Each receiving portion 411 has an open end 411a formed at its front end in the direction of widening the cylindrical shape, facilitating the positioning and insertion of the terminal of the connector on the target side. In this example, a pair of protrusions 42a are provided on the outer periphery of the central portion of the connecting portion 42 in the width direction (x-axis direction). The front side of the fastening portion 43 has a generally cylindrical shape, and the rear side, before fastening, has a generally U-shaped shape. Figure 8 As shown, the bottom (bottom 433) of the U-shaped portion of the fastening part 43 is connected to the upper side, which is generally cylindrical. That is, the rear side of the fastening part 43 has an end 431 as one end and an end 432 as the other end, and the portion (bottom 433) connecting the end 431 and the end 432 has a semi-cylindrical shape. In this example, the signal contact 40 is formed based on a thin plate. The fastening part 43, before the core wire 11 is inserted, is as follows... Figure 8As shown, both ends 431 and 432 face one side (the -z direction side), thus forming a U-shape where one side (bottom 433) is closed and the other side (ends 431, 432) is open. After the core wire 11 is inserted, to position and reinforce the core wire 11, and to deform the ends 431 and 432 by abutting against each other, the wire 10 is fastened to the signal contact 40. A protrusion 42b is provided on the upper front side of the fastening part 43. When the signal contact 40 is inserted and housed in the first housing 50, the protrusion 42b is locked to a locking mechanism (not shown) provided on the inner surface of the first housing 50. At this time, the protrusion 42b abuts against a stepped portion (not shown) provided in the first housing 50. This restricts the signal contact 40 from being further inserted into the first housing 50. The protrusions 42a and 42b maintain the housing of the signal contact 40 in the first housing 50.

[0050] [First shell 50]

[0051] First shell 50 ( Figure 5 For example, it is made of insulating components such as synthetic resin and is the inner housing of the shielded connector 1. The first housing 50 insulates the signal contact 40 from the second ground housing 70. The first housing 50 is an integral shape that integrates a pair of generally cylindrical receiving portions 51 side by side. The receiving portion 51 is an elongated cylindrical insulating component with a through hole for the signal contact 40 to be inserted. The first housing 50 receives and insulates the signal contact 40 and serves as the front end of the second shielding submodule 4, functioning as an insertion portion into the first shielding submodule 3. On the rear side of the first housing 50, rib-shaped sliding portions 52 are provided on the top and sides of the cylindrical shape to facilitate insertion and positioning. The first housing 50 is inserted from the rear of the first ground housing 60 and received in the second ground housing 70.

[0052] [First grounding shell 60]

[0053] Figure 9This is a perspective view of the first grounding shell before it is fastened, viewed from below. The first grounding shell 60 houses and holds the second grounding shell 70 and the bracket 30. The first grounding shell 60 is shielded and connected to the shielding part 13. The first grounding shell 60 has a generally cylindrical shape when the shielding module 2 is assembled. The first grounding shell 60 is, for example, a conductive grounding shell made of a metal such as copper. The first grounding shell 60 has a front receiving part 61, a rear crimping part 63, and a plate-shaped part, i.e., a connecting part 62, that connects a portion of the rear end of the receiving part 61 to a portion of the front end of the crimping part 63. The first grounding shell 60 also has protrusions 636 and 637. However, in this example, the protrusions 636 and 637 are configured as part of the crimping part 63 in a manner that is integral with the crimping part 63. In other words, the protrusions 636 and 637 may not necessarily be configured as part of the crimping part 63. For example, they may be configured to be connected from the end of the crimping part 63. In this example, the first grounding shell 60 is formed from a flat plate that has a portion cut out from a generally rectangular plate to form a connecting portion 62, thus creating rectangular portions of the receiving portion 61, the connecting portion 62, and the crimping portion 63. In this example, the protrusions 636 and 637 are formed by stamping a portion of the crimping portion 63.

[0054] The receiving portion 61 has a generally elliptical cylindrical shape. The receiving portion 61 is formed by pressing the two ends of the rectangular flat plate portion of the receiving portion 61 along its length direction (x-axis direction) together, creating a ring shape, with a through hole between the front and rear sides of the receiving portion 61. The first grounding shell 60 has a protruding positioning protrusion 64 on its front side (the side of the receiving portion 61) above (the +z direction side). Figure 4 ).

[0055] The crimping portion 63 includes a first crimping portion 631, a second crimping portion 632, a third crimping portion 633, and protrusions 636 and 637. In this disclosure, protrusion 636 is also referred to as the "first protrusion," and protrusion 637 as the "second protrusion." The first crimping portion 631, the second crimping portion 632, and the third crimping portion 633 have a generally U-shaped shape before tightening. At both ends facing the -z direction, a first end 634 is formed on one side, and a second end 635 is formed on the opposite side of the first end 634. Thus, a bottom 639 composed of bottoms 6311, 6321, and 6331 is formed on the upper side (+z direction side). In this example, the first grounding shell 60 has three concave grooves 601 arranged side by side at the position where it abuts against the inner surface of the tightened second crimping portion 632, thereby increasing the frictional force relative to the shielding portion 13. In addition, the 601 groove ensures rigidity while also contributing to weight reduction.

[0056] The first crimping portion 631 is located on the front side of the crimping portion 63. After the crimping portion 63 is tightened, it covers the insulating portion 12 via the second grounding shell 70, the bracket 30, and the aluminum foil 15. The first crimping portion 631 is a region (hereinafter also referred to as the "first region") extending from a portion of the first end 634 to a portion of the second end 635. After tightening, it has an annular shape with a first circumference R1 and covers the outer periphery of the exposed insulating portion 12.

[0057] The second crimping portion 632 is located behind the crimping portion 63 and covers the outer periphery of the shielding portion 13 after the crimping portion 63 is tightened. The second crimping portion 632 is a region (hereinafter also referred to as the "second region") from another part of the first end 634 to another part of the second end 635, and has an annular shape with a second circumference R2 that is longer than the first circumference R1 after tightening, covering the outer periphery of the shielding portion 13.

[0058] The third crimping portion 633 connects the first crimping portion 631 and the second crimping portion 632 from the first end 634 to the second end 635. The third crimping portion 633 connects the first crimping portion 631 and the second crimping portion 632 on the upper side (+z direction side).

[0059] In this example, the protrusions 636 and 637 are located on the inner side of the second crimping portion 632, forming an annular shape after fastening. When the protrusions 636 and 637 are fastened in such a manner that the first end 634 abuts against the second end 635, the designated area of ​​the third crimping portion 633 and the folded-back portion 131 ( Figure 6 When the front end of the folded-back portion 131 and the sleeve portion 20 move in a direction (+y direction) away from the end face 14a of the sheath portion 14 due to contact with the area W in the sleeve portion 14, further movement of the sleeve portion 20 is restricted by engaging with the end face 204a of the sleeve portion 20. In this example, the protrusions 636 and 637 are provided near the circumferential end 638 of the second crimping portion 632. The first protrusion 636 is provided near the first end 634, and the second protrusion 637 is provided near the second end 635.

[0060] [Second grounding casing 70]

[0061] Second grounding shell 70 ( Figure 5The second grounding housing 70 is conductive and serves as the external terminal of the shielding module 2. The second grounding housing 70 houses and holds the second shielding sub-module 4. The second grounding housing 70 is, for example, a copper grounding housing with a housing portion 71 having a generally elliptical cylindrical shape. The second grounding housing 70 has a through hole through which the second shielding sub-module 4 can be inserted. The second grounding housing 70 has: an opening 72 located at the rear end for insertion of the second shielding sub-module 4; and an opening 73 located at the front end, which is smaller than the opening 72. Engaging tabs 74 for engaging with the bracket 30 are respectively provided on the rear end sides of the upper and lower surfaces of the housing portion 71. When the bracket 30 is inserted, the engaging tabs 74 engage with the slot 33 through the slot 32, thereby preventing the bracket 30 from accidentally falling out of the second grounding housing 70.

[0062] Figure 10 This diagram shows the rear end of the second grounding housing 70 inserted into the receiving portion 61 of the first grounding housing 60. This is achieved by inserting the second grounding housing 70 into its lower surface (…). Figure 10 The positioning protrusion 75 (on the -z direction side) restricts the movement of the first grounding shell 60 towards the front side of the positioning protrusion 75. In this example, the rear end of the second grounding shell 70 is inserted into the area reaching the third crimping portion 633.

[0063] Assembly method of shielding module

[0064] The shielding module 2 is assembled, for example, through the following steps S1 to S6. Hereinafter, the description will be based on the premise of preparing the wire 10 with sleeve portion 20, bracket 30, signal contact 40, first housing 50, first ground housing 60, and second ground housing 70.

[0065] First, insert a pair of core wires 11 of the wire 10 from the rear of a pair of storage parts 31 of the bracket 30 (step S1).

[0066] Next, the core wires 11 of the wire 10 with the bracket 30 installed are inserted from the rear of a pair of fastening parts 43 of the signal contact 40, and the ends 431 and 432 are fastened to fix the signal contact 40 to the wire 10 (step S2).

[0067] Next, a pair of signal contacts 40 with wires 10 installed are inserted from the rear side of the storage portion 51 of the first housing 50 (step S3). Figure 11 This is a perspective view of the second shielding submodule from above. The second shielding submodule 4 is assembled via step S3.

[0068] Next, the opening 72 of the second grounding shell 70 is inserted into the opening of the receiving portion 61 of the first grounding shell 60, so that the first grounding shell 60 and the second grounding shell 70 are fitted together (step S4). Through step S4, the assembly is completed as follows: Figure 10The first end 634 and the second end 635 shown are the first shielding submodule 3 in the open state.

[0069] Next, a second shielding submodule 4 is inserted into the rear end of the first grounding shell 60 in the first shielding submodule 3, where the first end 634 and the second end 635 are in an open state. Figure 11 (Step S5). Figure 12 This is a perspective view of the first grounding shell in the shielding module before it is tightened, viewed from below. Figure 13 Viewed from the front side Figure 12 The image. Figure 14 It is Figure 13 A magnified view of a portion of the EE cross-section. Through step S5, it becomes... Figures 12-14 The state. In step S5, it becomes the following state. The bottom 6311 of the first crimping portion 631, that is, the area on the opposite side of the open end (first end 634, second end 635) of the first crimping portion 631, that is, the part of the outer periphery of the exposed insulating portion 12 covered by the second grounding shell 70 and the bracket 30 (see also). Figure 6 The bottom 6321 of the second crimping portion 632, that is, the area located on the opposite side of the open end side in the second crimping portion 632, i.e., the bottom 6321 covers a portion of the outer periphery of the shielding portion 13. The bottom 6331 of the third crimping portion 633, that is, the area located on the opposite side of the open end side in the third crimping portion 633, i.e., the bottom 6331 covers a designated area of ​​the folded-back portion 131 of the shielding portion 13. Figure 14 Region V in the middle.

[0070] Next, the crimping portion 63 is tightened (step S6). That is, the third crimping portion 633 of the first grounding shell 60 is brought into contact with the end of the sheath portion 14 on the end 111 side via the sleeve portion 20 and the shield portion 13, and the end face 634a of the first end 634 is brought into contact with the end face 635a of the second end 635, and the crimping portion 63 is tightened circumferentially, thereby locking the protrusions 636 and 637 at the rear side (opposite to the end 111 side) of the sleeve portion 20. In other words, the first end 634 of the first grounding shell 60 is tightened by bringing the second end 635 into contact, and the protrusions 636 and 637 engage with the end face 204a of the sleeve portion 20. Thus, the assembly of the shielding module 2 is completed. In this disclosure, "tightening by contact" includes not only the case of actual contact and tightening, but also the case of tightening at a position that is relatively close to each other without actually contacting.

[0071] Figure 15 This is a perspective view of the first grounding shell 60 in the shielding module after it has been tightened, viewed from below. Figure 16 Viewed from the front side Figure 15The image. Figure 17 It is Figure 16 This is a magnified view of a portion of the FF cross-section. The FF line is equivalent to... Figure 13 The position of the EE line. The second shielding submodule 4 is secured by abutting the end face 634a of the first end 634 of the first grounding shell 60 with the end face 635a of the second end 635. Figure 12 ), thereby assembling Figures 15-17 The shielding module 2 is shown. After assembling the shielding module 2, as described above, the shielding module 2 is inserted into the second housing 80, and the CPA 81 and retainer 82 are assembled to complete the shielding connector 1.

[0072] The shielded connector 1 in this embodiment has been described above. In this embodiment, the shielded module 2, before the crimping part 63 is tightened, is as follows: Figure 14 As shown, the end face 204a of the end portion 204 located on the rear side (+y direction side) of the sleeve portion 20 and the end face 636a on the front side of the protrusion 636 are separated by a distance L in the length direction (y-axis direction) of the shielding module 2. Furthermore, although in Figure 14 It cannot be visually confirmed, but the end face 204a and the front end face 637a of the protrusion 637 are separated by a specified distance in the length direction (y-axis direction) of the shielding module 2.

[0073] By fastening the crimping part 63, the third crimping part 633 of the crimping part 63 abuts against the shielding part 13, and the shielding part 13 and the sleeve part 20 move rearward (in the +y direction). That is, the end face 204a of the end portion 204 located on the rear side in the short side direction of the sleeve part 20 abuts against the protrusions 636 and 637. Figure 17From the perspective of [the viewpoint], the movement of the sleeve portion 20 in the right direction (+y direction) is restricted. In other words, when the third crimping portion 633 is brought into contact with a predetermined area of ​​one end side (end 111 side) of the core wire 11 in the shielding portion 13 and the end face 634a of the first end 634 is brought into contact with the end face 635a of the second end 635, and the wire 10 is fastened in the circumferential direction, the protrusions 636 and 637 are engaged with the end 204 of the sleeve portion 20 on the side opposite to one end side (end 111 side) of the core wire 11. The sleeve portion 20 abuts against the third crimping portion 633 via the shielding portion 13 on the end 203 side, and the end face 204a on the end 204 side abuts against the protrusions 636 and 637. That is, by fastening the crimping portion 63, the position of the sleeve portion 20 in the shielding module 2 is determined. This suppresses deviations in the relative positional relationship between the wire 10, which forms the core of the internal terminal, and the first grounding housing 60 and the second grounding housing 70, which form the external terminals. Consequently, it suppresses positional deviations in the core wire 11, the signal contact 40 into which the core wire 11 is inserted, the first housing 50 into which the signal contact 40 is inserted, and the second grounding housing 70 into which the first housing 50 is inserted. The shielding module 2 of this disclosure can suppress positional deviations in the second shielding submodule 4, which forms the internal terminal.

[0074] By tightening the crimping portion 63, the sleeve portion 20, which reinforces the area around the core wire 11, is further tightened. This narrows the distance between the core wire 11 and the sleeve portion 20. The crimping portion 63, by tightening, brings the core wire 11 close to the surrounding sleeve portion 20, thus becoming a point where impedance would otherwise easily deteriorate. If the position of the sleeve portion 20 deviates, the positional relationship between the core wire 11 and the sleeve portion 20 also deviates. In this case, if the sleeve portion 20 shifts to an unintended position, it will lead to further impedance deterioration. The shielding module 2 of this disclosure can restrict the movement of the sleeve portion 20 by means of the protrusions 636 and 637, so that the relative positional relationship between the core wire 11 and the sleeve portion 20 does not deviate from the intended position. Therefore, it is possible to tighten using the crimping portion 63 while maintaining a balanced relative positional relationship between the core wire 11 and the sleeve portion 20.

[0075] Here, we consider the case where the sleeve portion 20 of the stage where the assembled wire 10 is assembled is forcefully pressed and tightened to a degree that the relative position with the sheath portion 14 is not misaligned (not offset). In this case, even if the sleeve portion 20 of the stage where the wire 10 is assembled deviates from the originally intended position, the aforementioned impedance degradation may occur. In the shielding module 2 of this disclosure, the sleeve portion 20 is not in a pressed state relative to the sheath portion 14 before the tightening crimp portion 63, and can move relative to the sheath portion 14. Therefore, tightening the crimp portion 63 further tightens the sleeve portion 20 at the same time. That is, the protrusions 636 and 637 control the position of the sleeve portion 20, which helps to achieve a balance in the positional relationship between the core wire 11 and the sleeve portion 20. Therefore, the shielding connector 1 of this disclosure also helps to prevent impedance degradation, especially for shielding connectors at high frequencies.

[0076] The embodiments of this disclosure have been described above. In this disclosure, protrusions 636 and 637 are provided on the rear side of the second crimping portion 632, which is near the end portion 638. However, they can also be configured to be provided at a position other than the rear side of the second crimping portion 632, taking into account the length of the second crimping portion 632 and the length of the sleeve portion 20. In addition, in this disclosure, two protrusions, 636 and 637, are provided, but there can be one or more protrusions. Furthermore, their size can be adjusted appropriately. Moreover, the shielded connector described above can of course be appropriately modified without departing from the spirit of this disclosure.

Claims

1. A shielded connector comprising: a wire having a core wire; a first grounding shell secured to an end of the wire by abutting a first end, which is an open end, against a second end, characterized in that, The wire has: An insulating portion that covers the outer periphery of the core wire; A sheath portion, which exposes one end of the insulating portion by a predetermined length and covers the outer periphery; A metal sleeve portion that covers the outer periphery of the sheath portion for a specified length along the longitudinal direction of the shielded connector; The shielding portion includes a main body portion that covers the outer periphery of the insulating portion from the inner periphery of the sheath portion, and an end face that covers one end side of both the sheath portion and the sleeve portion, and a folded-back portion that covers the outer periphery of the sleeve portion for a predetermined length in the longitudinal direction of the shielding connector. The first grounding shell has: The first crimping portion, which is a first region extending from a portion of the first end to a portion of the second end, has an annular shape with a first circumference after the fastening, and covers the outer periphery of the exposed insulating portion. The second crimping portion is a second region extending from one part of the first end to another part of the second end, having an annular shape with a second circumference longer than the first circumference after the fastening, and covering the outer periphery of the shielding portion; A third crimping portion connects the first crimping portion and the second crimping portion from the first end to the second end; When the protrusion is fastened in such a way that the first end and the second end abut against each other, and the third pressing part abuts against a predetermined area of ​​the folding part, causing the front end of the folding part and the sleeve part to move away from the end face of the sheath part, the protrusion restricts further movement of the sleeve part by engaging with the end face of the sleeve part.

2. The shielded connector according to claim 1, characterized in that, The protrusion is located near the circumferential end of the second crimping portion.

3. The shielded connector according to claim 2, characterized in that, The protrusion is composed of a first protrusion located near the first end and a second protrusion located near the second end.

4. A method for assembling a shielded connector, comprising assembling a wire having a core wire and a first grounding shell having a first end and a second end as open ends, characterized in that, The wire has: An insulating portion that covers the outer periphery of the core wire; A sheath portion, which exposes one end of the insulating portion by a predetermined length and covers the outer periphery; A metal sleeve portion that covers the outer periphery of the sheath portion for a specified length along the longitudinal direction of the shielded connector; The shielding portion includes a main body portion that covers the outer periphery of the insulating portion from the inner periphery of the sheath portion, and an end face that covers one end side of both the sheath portion and the sleeve portion, and a folded-back portion that covers the outer periphery of the sleeve portion for a predetermined length in the longitudinal direction of the shielding connector. The first grounding shell has: The first crimping portion, which is a first region extending from a portion of the first end to a portion of the second end, has an annular shape with a first circumference after fastening, covering the outer periphery of the exposed insulating portion. The second crimping portion is a second region extending from one part of the first end to another part of the second end, having an annular shape with a second circumference longer than the first circumference after the fastening, and covering the outer periphery of the shielding portion; A third crimping portion connects the first crimping portion and the second crimping portion from the first end to the second end; The protrusion is located on the inner side of the second crimping part, which is annular after tightening. The assembly method of the shielded connector is performed as follows: The wire and a first grounding shell having a first end and a second end as open ends before fastening are prepared. A portion of the outer periphery of the exposed insulation is covered by the bottom of the first crimping part located on the side opposite to the open end. A portion of the outer periphery of the shield is covered by the bottom of the second crimping part located on the side opposite to the open end. A predetermined area of ​​the folded-back portion of the shield is covered by the bottom of the third crimping part located on the side opposite to the open end. The first end of the first grounding shell is fastened in such a way that it abuts against the second end, and the protrusion engages with the end face of the other end of the sleeve portion.

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