Connector and wire harness
Through the press-in structure connection between the shield sleeve and the shield case, the problem of reduced electromagnetic shielding performance of shielded wires under high current and vibration conditions is solved, and a stable electromagnetic shielding effect is achieved.
Patent Information
- Application Number
- CN202480007409.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-01-30
- Filing Date
- 2024-01-19
- Publication Date
- 2025-08-19
AI Technical Summary
Under high current and vibration conditions, the contact part of the shielded wires and the shielded shell is prone to wear, resulting in a reduced electromagnetic shielding performance.
The press-in structure of the shield sleeve is connected to the shield shell. The press-in part of the shield sleeve is in contact with the shield shell, and the dimensional tolerance is absorbed through the design of the through hole, which enhances the connection stability and suppresses wear.
It effectively suppresses the wear of the contact part of the shielding sleeve and the shielding shell, maintains electromagnetic shielding performance, and improves the stability of the connection and vibration resistance.
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Figure CN120513554A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a connector and a wiring harness. Background Art
[0002] Conventionally, as wiring harnesses laid inside vehicles such as hybrid vehicles and electric vehicles, there are known wiring harnesses that include shielded wires and connectors mounted on the ends of the shielded wires (for example, see Patent Document 1). The shielded wire comprises: a core wire having conductivity; an insulating sheath surrounding the outer periphery of the core wire; an electromagnetic shielding member surrounding the outer periphery of the insulating sheath; and a sheath surrounding the outer periphery of the electromagnetic shielding member. In this shielded wire, the axial end of the electromagnetic shielding member is exposed from the sheath. Furthermore, a ring-shaped metal shielding sleeve is attached to the outer periphery of the portion of the electromagnetic shielding member exposed from the sheath. The electromagnetic shielding member and the shielding sleeve are electrically connected by contact with each other. Furthermore, the shielding sleeve is spring-connected to the inner peripheral surface of a metal shielding shell of the connector. The shielding sleeve and the shielding shell are electrically connected by contact with each other through the spring connection. Prior art literature Patent Literature
[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2022-155937 Summary of the Invention Problems to be solved by the invention
[0004] However, as the shielded wire becomes thicker as the current flowing through it increases, the shielded wire's movement (e.g., shaking) increases when the shielded wire vibrates due to, for example, vehicle travel. This shaking is then transmitted to the contact area between the shielding sleeve and the shielding shell, causing wear. As wear progresses, electromagnetic shielding performance deteriorates.
[0005] An object of the present invention is to provide a connector and a wiring harness capable of suppressing degradation of electromagnetic shielding performance. Solutions to Problems
[0006] The connector of the present invention is connected to the end of a shielded wire, and the shielded wire has: a core wire, which is conductive; an insulating covering, which surrounds the outer periphery of the core wire; and an electromagnetic shielding member, which surrounds the outer periphery of the insulating covering and is conductive. The connector has: a terminal, which is connected to the core wire and is conductive; a shielding sleeve, which is assembled on the outer periphery of the shielded wire in a state of contact with the outer periphery of the electromagnetic shielding member and is conductive; and a shielding shell, which covers the terminal and the shielding sleeve and is conductive. The shielding shell has a through hole, and the shielded wire passes through the through hole. The shielding sleeve has a press-in portion, which is pressed into the through hole along a press-in direction extending parallel to the axial direction of the through hole, and the press-in portion is in contact with the shielding shell in a pressed-in state. Effects of the Invention
[0007] According to the connector and the wire harness of the present invention, it is possible to suppress degradation of electromagnetic shielding performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is a schematic perspective view showing a wire harness according to an embodiment. Figure 2 This is a schematic exploded perspective view showing a wire harness according to an embodiment. Figure 3 This is a schematic cross-sectional view showing a wire harness according to an embodiment ( Figure 4 3-3 line section view in the figure). Figure 4 This is a schematic cross-sectional view showing a wire harness according to an embodiment ( Figure 3 4-4 line section view in the figure). Figure 5 This is a schematic exploded perspective view showing a portion of a connector according to an embodiment. Figure 6 This is a schematic perspective view showing a portion of a connector according to an embodiment. Figure 7 This is a schematic cross-sectional view showing a wire harness according to an embodiment ( Figure 4 7-7 line section view in the figure). Figure 8 This is a schematic exploded cross-sectional view showing a portion of a connector according to one embodiment. Figure 9 This is a schematic cross-sectional view illustrating a method for manufacturing a wire harness according to an embodiment. Figure 10 This is a schematic cross-sectional view illustrating a method for manufacturing a wire harness according to an embodiment. Figure 11 This is a schematic cross-sectional view illustrating a method for manufacturing a wire harness according to an embodiment. DETAILED DESCRIPTION
[0009] [Description of Embodiments of the Invention] First, embodiments of the present invention will be described below. [1] The connector of the present invention is connected to the end of a shielded wire, wherein the shielded wire has: a core wire having conductivity; an insulating covering surrounding the outer periphery of the core wire; and an electromagnetic shielding member surrounding the outer periphery of the insulating covering and having conductivity. The connector has: a terminal connected to the core wire and having conductivity; a shielding sleeve assembled to the outer periphery of the shielded wire in a state of contact with the outer periphery of the electromagnetic shielding member and having conductivity; and a shielding shell covering the terminal and the shielding sleeve and having conductivity. The shielding shell has a through hole, and the shielding wire is passed through the through hole. The shielding sleeve has a press-in portion, and the press-in portion is pressed into the through hole along a press-in direction extending parallel to the axial direction of the through hole, and the press-in portion is in contact with the shielding shell in a pressed-in state.
[0010] According to this structure, the shielding sleeve contacts the outer periphery of the electromagnetic shielding member, and the press-fit portion of the shielding sleeve contacts the shielding shell in a pressed-fit state. As a result, the shielding sleeve and the electromagnetic shielding member are electrically connected to each other, and the shielding sleeve and the shielding shell are electrically connected to each other. Furthermore, the connection portion between the shielding sleeve and the shielding shell can be formed into a press-fit structure, thereby enabling the shielding sleeve and the shielding shell to be more securely connected compared to a case where the shielding sleeve and the shielding shell are connected by a spring. As a result, the shielding sleeve can be securely held in the shielding shell, and the shielded wire can be securely held in the shielding shell. Therefore, even if the shielded wire vibrates due to, for example, vehicle travel, the movement of the shielded wire (e.g., shaking) can be appropriately restricted at the connection portion between the shielding sleeve and the shielding shell. As a result, wear of the contact portion between the shielding sleeve and the shielding shell can be suppressed, and degradation of electromagnetic shielding performance can be suppressed.
[0011] [2] In the above [1], the outer peripheral surface of the press-fit portion may have a first inclined surface, and the first inclined surface may be inclined toward the radial inner side of the through hole as it moves from the upstream side of the press-fitting direction toward the downstream side of the press-fitting direction.
[0012] According to this structure, the first inclined surface is provided on the outer circumference of the press-fit portion, so that the outer circumference of the press-fit portion decreases from upstream to downstream in the press-fit direction. Consequently, the press-fit portion can have a variety of outer circumferences. Consequently, the first inclined surface can appropriately accommodate dimensional tolerances of the shielding sleeve and shielding case. Thus, even when the dimensional tolerances of the shielding sleeve and shielding case are large, the press-fit portion can be properly pressed into the through-hole.
[0013] [3] In the above [1] or [2], a plurality of protrusions protruding radially inward of the through hole may be provided on the inner circumferential surface of the through hole, the plurality of protrusions being arranged at intervals along the circumference of the through hole, and the press-in portion being in contact with the top end surfaces of the respective plurality of protrusions in a pressed-in state.
[0014] According to this structure, multiple protrusions, which come into contact with the press-fit portion of the shielding sleeve in a pressed-fit state, are spaced apart along the circumference of the through-hole. In other words, on the inner circumferential surface of the through-hole, a portion of the through-hole's circumference includes a wall portion, which comes into contact with the press-fit portion in a pressed-fit state, i.e., an area without protrusions. By providing this area, even if the press-fit portion deforms when being pressed into the through-hole, the deformation is appropriately distributed to the aforementioned area. This allows for deformation of the press-fit portion during press-fitting, thereby improving the ease of assembly of the shielding sleeve and shield case when the press-fit portion is pressed into the through-hole.
[0015] [4] In the above [3], the plurality of protrusions may extend respectively along the pressing direction, and the top end surface may have a second inclined surface, and the second inclined surface may be inclined toward the radial inner side of the through hole as it moves from the upstream of the pressing direction toward the downstream of the pressing direction.
[0016] According to this structure, a second inclined surface is provided on the top surface of each protrusion. Consequently, the space within the through-hole, located further inward than the multiple protrusions, is formed to decrease in size as it moves from upstream in the press-fitting direction toward downstream. This allows the second inclined surface to appropriately accommodate dimensional tolerances of the shielding sleeve and shielding case. Therefore, even when the dimensional tolerances of the shielding sleeve and shielding case are large, the press-fit portion can be appropriately pressed into the through-hole.
[0017] [5] In the above [4], the top end surface may have a guide surface for guiding the shielding sleeve downstream in the pressing direction, the guide surface is inclined toward the radial inner side of the through hole as it moves from the upstream of the pressing direction toward the downstream of the pressing direction, and the guide surface is inclined more than the second inclined surface relative to the pressing direction.
[0018] According to this configuration, a guide surface is provided on the top surface of the protrusion. The guide surface is inclined more radially inward of the through-hole than the second inclined surface as it moves from upstream to downstream in the press-fitting direction. With this configuration, when the press-fit portion is press-fitted into the through-hole, it is guided downstream in the press-fitting direction along the guide surface of the protrusion. This improves the workability of press-fitting the press-fit portion into the through-hole.
[0019] [6] In any one of the above [3] to [5], the cross-sectional shape of the top end surface obtained by cutting the protrusion along a surface perpendicular to the pressing direction may be formed into an R shape. According to this configuration, since the distal end surface of the protrusion is formed in an R-shape, the shield sleeve is less likely to be damaged compared to, for example, a shape having sharp corners.
[0020] [7] In any one of the above [1] to [6], the press-fit portion may be formed into a square cylindrical shape, and the through hole may have a planar shape as viewed from the press-fit direction and be formed into a quadrilateral.
[0021] According to this structure, when the press-fit portion is press-fitted into the through-hole, relative rotation of the press-fit portion relative to the through-hole about the axis extending along the press-fitting direction can be appropriately suppressed.
[0022] [8] In any one of the above [1] to [7], the shielding sleeve may also have the press-in portion and the wire connecting portion, the wire connecting portion is continuously and integrally formed from the press-in portion and is connected to the electromagnetic shielding component, and the outer peripheral size of the press-in portion is larger than the outer peripheral size of the wire connecting portion.
[0023] According to this structure, the outer circumference of the press-fit portion, which is pressed into the through-hole, is larger than the outer circumference of the wire connection portion connected to the outer circumference of the electromagnetic shielding member. Thus, even if the press-fit portion is deformed by being pressed into the through-hole, damage to the electromagnetic shielding member caused by the deformation of the press-fit portion can be appropriately suppressed.
[0024] [9] In any one of the above [1] to [8], the shielding shell may be made of aluminum die casting. According to this structure, a conductive shield case can be easily manufactured.
[0025]
[10] The wiring harness of the present invention includes the connector described in any one of [1] to [9] above and the shielded electric wire connected to the terminal. According to this structure, the same effect as the connector of the above-mentioned [1] can be obtained.
[0026] [Details of Embodiments of the Invention] Specific examples of the connector and wiring harness according to the present invention are described below with reference to the accompanying drawings. For ease of explanation, portions of the structure may be enlarged or simplified in the drawings. Furthermore, the dimensional ratios of various components may differ between the drawings. The terms "parallel," "perpendicular," or "horizontal" in this specification encompass not only strictly parallel, perpendicular, or horizontal conditions but also conditions that are substantially parallel, perpendicular, or horizontal within the scope of achieving the functional effects of the present embodiment. The term "cylindrical" as used in this specification encompasses not only cylindrical shapes with a continuous circumferential wall, but also shapes formed by combining multiple components, or shapes with a notch in a portion of the circumference, such as a C-shaped shape. Furthermore, "cylindrical" shapes include, but are not limited to, circular, elliptical, and polygonal shapes with pointed or rounded corners. "Opposing" in this specification refers to surfaces or components facing each other, including not only completely facing each other but also partially facing each other. Furthermore, "opposing" in this specification encompasses both situations where a separate component is interposed between two components and situations where nothing is interposed between the two components. In addition, the "inner circumferential dimension of component A" in this specification refers to the length of one circle around the inner circumferential surface of component A along the circumference of component A. In addition, the "outer circumferential dimension of component A" in this specification refers to the length of one circle around the outer circumferential surface of component A along the circumference of component A. The terms "first", "second", "third", etc. in this specification are only used to distinguish objects and do not sort the objects. In addition, the present invention is not limited to these examples, but is shown by the claims and is intended to include all modifications within the meaning and scope equivalent to the claims.
[0027] (Overall Structure of Wiring Harness 10) like Figure 1 As shown, the wiring harness 10 includes one or more (two in this embodiment) shielded wires 20 and a connector assembly C1 mounted on the ends of the shielded wires 20. The wiring harness 10 is provided in a vehicle such as a hybrid vehicle or electric vehicle. The wiring harness 10 electrically connects electrical devices used in the vehicle. Examples of electrical devices include high-voltage batteries, inverters, motors, and relay boxes. The connector assembly C1 is provided in, for example, one of the electrical devices.
[0028] (Overall structure of connector assembly C1) The connector assembly C1 includes a connector 30 and a connector 200 that can be attached to and detached from the connector 30. The connector 200 is fixed to an assembly object such as a housing 210 of an electrical device. The connector 200 includes a plurality of (two in this embodiment) metal terminals 201 and a connector housing 202 that holds the plurality of terminals 201. The connector 30 and the connector 200 are assembled with each other along a first direction X1. The connector 30 is mated with the connector 200, for example, along the first direction X1. When the connector 30 and the connector 200 are properly mated, the metal terminals 31 (see Figure 2 ) and the terminal 201 of the connector 200 are electrically connected to each other. In addition, the up-down direction and the left-right direction in each drawing do not necessarily represent the posture of the connector 30 and the connector 200 when in use.
[0029] In the following description, when describing the positional relationship of the components of the connector 30, the direction opposite to the first direction X1 is referred to as the first opposite direction X2. Figure 1 The direction to the right in the second direction Y1 is called the second direction Y1, and the direction opposite to the second direction Y1 is called the second opposite direction Y2. Figure 1 The upward direction is referred to as a third direction Z1, and the opposite direction to the third direction Z1 is referred to as a third opposite direction Z2.
[0030] (Structure of Connector 30) like Figure 2 As shown, the connector 30 includes a plurality of terminals 31 that are connected to the ends of a plurality of shielded wires 20, and a cylindrical connector housing 40 that accommodates the plurality of terminals 31. The connector housing 40 includes an inner housing 41 that accommodates the terminals 31 and a shield shell 50 that covers the inner housing 41. The connector 30 includes one or more (two in this embodiment) conductive shield sleeves 70 that are mounted on each of the plurality of shielded wires 20, and one or more conductive leaf springs 80. The connector 30 also includes, for example, one or more (two in this embodiment) sealing members 90 that fit inside the shield shell 50, a restricting member 100 that restricts the movement of the shielded wires 20, and a stopper 110 that prevents the sealing member 90 from being removed.
[0031] (Structure of Shielded Electric Wire 20) like Figure 3 and Figure 4As shown, each shielded wire 20 includes a core wire 21 that is conductive and an insulating coating 22 that surrounds the outer periphery of the core wire 21 and provides insulation. Each shielded wire 20 also includes a conductive electromagnetic shielding member 23 that surrounds the outer periphery of the insulating coating 22 and a sheath 24 that surrounds the outer periphery of the electromagnetic shielding member 23 and provides insulation. Thus, each shielded wire 20 itself has an electromagnetic shielding structure.
[0032] The core wire 21 may be, for example, a stranded wire formed by twisting multiple metal wires together, or a single-core wire composed of a single conductor. A single-core wire may be, for example, a cylindrical conductor formed by a solid metal rod or a hollow cylindrical conductor. Furthermore, a combination of stranded wire, cylindrical conductor, or cylindrical conductor may be used as the core wire 21. The core wire 21 may be made of, for example, copper or aluminum.
[0033] The insulating coating 22 covers, for example, the entire circumference of the outer peripheral surface of the core wire 21. The insulating coating 22 is made of, for example, an insulating resin material. The electromagnetic shielding member 23, for example, surrounds the entire outer circumference of the insulating coating 22. The electromagnetic shielding member 23 is, for example, flexible. For example, a braided wire or metal foil, formed by braiding multiple metal wires into a cylindrical shape, can be used as the electromagnetic shielding member 23. In this embodiment, the electromagnetic shielding member 23 is a braided wire. For example, copper or aluminum-based metal materials can be used as the material of the electromagnetic shielding member 23.
[0034] The sheath 24 surrounds, for example, the entire circumference of the outer peripheral surface of the electromagnetic shield member 23. The sheath 24 is made of, for example, an insulating resin material. The cross-sectional shape of the shielded wire 20 cut along a plane perpendicular to the longitudinal direction of the shielded wire 20, i.e., the cross-sectional shape of the shielded wire 20, can be formed in any shape. The cross-sectional shape of the shielded wire 20 can be formed in, for example, a circular, semicircular, polygonal, or flat shape. In the present embodiment, the cross-sectional shape of the shielded wire 20 is formed in a circular shape.
[0035] like Figure 4 As shown in FIG, each shielded electric wire 20 extends along the first direction X1. In other words, the axial direction of each shielded electric wire 20 extends parallel to the first direction X1. For example, a plurality of shielded electric wires 20 are arranged along the second direction Y1.
[0036] The end of the core wire 21 in the axial direction (here, the first direction X1) is exposed from the insulating coating 22. The terminal 31 is connected to the end of the core wire 21 exposed from the insulating coating 22. The end of the electromagnetic shield member 23 in the axial direction (here, the first direction X1) is exposed from the sheath 24. The shield sleeve 70 is connected to the end of the electromagnetic shield member 23 exposed from the sheath 24.
[0037] (Structure of terminal 31) The two terminals 31 are electrically connected to the two shielded wires 20, respectively. Each terminal 31 includes, for example, a wire connection portion 32 connected to the end of the shielded wire 20 and a terminal connection portion 33. Each terminal 31 is, for example, a single component in which the wire connection portion 32 and the terminal connection portion 33 are continuously and integrally formed. Metal materials such as copper, copper alloys, aluminum, aluminum alloys, and stainless steel can be used as materials for each terminal 31.
[0038] The wire connector 32 is connected to the end of the core wire 21 exposed from the insulating coating 22. The wire connector 32 is formed, for example, in a flat plate shape. The wire connector 32 is connected to the core wire 21 by, for example, crimping or ultrasonic welding. This electrically and mechanically connects the wire connector 32 and the core wire 21.
[0039] The terminal connection portion 33 is formed in a flat plate shape, for example, and is electrically and mechanically connected to the terminal 201 of the connector 200 . (Structure of Shielding Sleeve 70) Two shielding sleeves 70 are attached to the two shielded wires 20, respectively. Each shielding sleeve 70 is attached to the outer periphery of the end portion of the electromagnetic shielding member 23 that is exposed from the sheath 24. Each shielding sleeve 70 is formed into a cylindrical shape. Each shielding sleeve 70 is made of metal, for example. As the material of each shielding sleeve 70, a copper-based or aluminum-based metal material can be used.
[0040] like Figure 4 and Figure 5 As shown, each shielding sleeve 70 includes a wire connecting portion 71 and a press-fit portion 72. Each shielding sleeve 70 is a single component in which the wire connecting portion 71 and the press-fit portion 72 are continuously and integrally formed.
[0041] The wire connection portion 71 is provided, for example, at an end portion of the shield sleeve 70 in the first direction X1. The wire connection portion 71 is formed in a cylindrical shape along the outer peripheral surface of the shield wire 20. Figure 5 As shown, the wire connecting portion 71 of this embodiment is formed into a cylindrical shape. Figure 5 Only the shield shell 50 and the shield sleeve 70 of the connector 30 are exploded and shown.
[0042] like Figure 3As shown, the inner circumferential surface of the wire connection portion 71 contacts the outer circumferential surface of the electromagnetic shielding member 23 exposed from the sheath 24. The wire connection portion 71 is connected to the outer circumferential surface of the electromagnetic shielding member 23 using, for example, a fixing member 75. The fixing member 75 secures the shielding sleeve 70 to the outer circumferential surface of the shielded wire 20, with the inner circumferential surface of the wire connection portion 71 in contact with the electromagnetic shielding member 23. The fixing member 75 is formed in an annular shape along the outer circumference of the shielded wire 20. The fixing member 75 engages with the outer side of the shielding sleeve 70, sandwiching the wire connection portion 71 between the fixing member 75 and the outer circumferential surface of the electromagnetic shielding member 23. Here, the axial end of the electromagnetic shielding member 23 is folded back in the first reverse direction X2 to cover the outer circumference of the wire connection portion 71. For example, the fixing member 75 engages with the outer side of the electromagnetic shielding member 23 folded back to cover the outer circumference of the wire connection portion 71. Furthermore, by tightening the fixing member 75 radially inwardly of the shielded wire 20, the wire connection portion 71 of the shielding sleeve 70 is clamped and secured in direct contact with the outer circumferential surface of the electromagnetic shielding member 23. This electrically and mechanically connects the electromagnetic shielding member 23 and the shielding sleeve 70. For example, a clamping ring or a clamping band can be used as the fixing member 75.
[0043] The press-fit portion 72 is provided at, for example, the end portion in the first reverse direction X2 of the shielding sleeve 70. The press-fit portion 72 is formed so as to extend from the outer peripheral surface of the wire connecting portion 71 toward the radially outer side of the shielding sleeve 70. Figure 5 As shown, the press-fit portion 72 protrudes radially outward from the outer peripheral surface of the wire connecting portion 71, for example, along the entire circumference of the wire connecting portion 71. The press-fit portion 72 is formed into a cylindrical shape corresponding to the inner peripheral surface of the shielding shell 50. In this embodiment, the press-fit portion 72 is formed into a square cylindrical shape. The cross-sectional shape of the press-fit portion 72 along the outer peripheral surface is formed into a quadrilateral. The cross-sectional shape of the press-fit portion 72 along the inner peripheral surface is formed into a quadrilateral.
[0044] The outer circumferential dimension of the press-in portion 72 is, for example, larger than the outer circumferential dimension of the wire connecting portion 71. The inner circumferential dimension of the press-in portion 72 is, for example, larger than the inner circumferential dimension of the wire connecting portion 71. The press-in portion 72 is pressed into the interior of the shielding shell 50. The press-in portion 72 is pressed into the interior of the shielding shell 50, for example, along a press-in direction D1 extending parallel to the axial direction of the shielding shell 50. The press-in portion 72 is inserted into the interior of the shielding shell 50 with the outer circumferential surface of the press-in portion 72 in contact with the inner circumferential surface of the shielding shell 50. Here, the press-in direction D1 of this embodiment is consistent with the first direction X1. In this specification, in the press-in direction D1, the first reverse direction X2 side where the shielding sleeve 70 starts to be pressed is referred to as "upstream", and the first direction X1 side is referred to as "downstream". That is, the outer side of the press-in direction D1 is referred to as "upstream", and the inner side of the press-in direction D1 is referred to as "downstream".
[0045] like Figure 3As shown, the outer peripheral surface of the press-fit portion 72 has a first inclined surface 73, which inclines radially inward of the shield sleeve 70 as it moves from upstream in the press-fit direction D1 toward downstream in the press-fit direction D1. The first inclined surface 73, for example, inclines radially inward of the shield sleeve 70 as it moves from the end portion of the shield sleeve 70 in the first reverse direction X2 toward the wire connection portion 71. The first inclined surface 73 is formed, for example, along the entire length of the press-fit portion 72 in the axial direction (here, the first direction X1). The first inclined surface 73 is formed, for example, along the entire circumference of the press-fit portion 72. The outer peripheral dimension of the press-fit portion 72 is formed so as to decrease from the end portion in the first reverse direction X2 toward the wire connection portion 71.
[0046] (Structure of Leaf Spring 80) like Figure 2 As shown, two leaf springs 80 are provided corresponding to the two shielded electric wires 20. For example, an iron-based or copper-based metal material can be used as the material of each leaf spring 80. Each leaf spring 80 is formed into a U-shape in a plan view as viewed from the first direction X1.
[0047] (Structure of the inner housing 41) The inner housing 41 includes, for example, a base 42 and one or more (two in this embodiment) terminal housing portions 44 extending from the base 42 in the first direction X1. The inner housing 41 is made of, for example, synthetic resin. The inner housing 41 is, for example, a separate component from the shielding shell 50. The inner housing 41 is housed within the shielding shell 50. The inner housing 41 is inserted into the shielding shell 50 along the first reverse direction X2.
[0048] The base 42 is provided at the end of the inner shell 41 in the first reverse direction X2. The base 42 has two storage tubes 43. Figure 4 As shown, the two storage cylinders 43 individually store the axial ends of the two shielded electric wires 20. Each storage cylinder 43 stores, for example, the wire connecting portion 71 of the shield sleeve 70 and a fixing member 75 attached to the outer periphery of the wire connecting portion 71.
[0049] For example, two terminals 31 are individually accommodated in the two terminal receiving portions 44. Each terminal receiving portion 44 is formed into a cylindrical shape extending from the base portion 42 in the first direction X1. The internal spaces of the two terminal receiving portions 44 are respectively connected to the internal spaces of the two receiving tubes 43. Each terminal receiving portion 44 accommodates the connecting portion of the wire connecting portion 32 and the core wire 21, and also accommodates the terminal connecting portion 33. Each terminal receiving portion 44 accommodates a leaf spring 80. The terminal 201 of the connector 200 is inserted into the interior of the terminal receiving portion 44. The terminal connecting portion 33 and the terminal 201 are clamped by the leaf spring 80 inside the terminal receiving portion 44.
[0050] A sealing member 45 is attached to the outer peripheral surface of the base 42. The sealing member 45 is formed in a continuous annular shape over the entire circumference of the base 42. The sealing member 45 seals between the outer peripheral surface of the base 42 and the inner peripheral surface of the shield shell 50.
[0051] A sealing member 46 is attached to the outer peripheral surface of the terminal receiving portion 44. The sealing member 46 is formed into a continuous ring shape extending over the entire circumference of the terminal receiving portion 44. The sealing member 46 separates the outer peripheral surface of the terminal receiving portion 44 from the connector housing 202 (see FIG. Figure 1 ) between the inner peripheral surfaces. The sealing members 45 and 46 are made of rubber, for example.
[0052] (Structure of Shield Case 50) The shielding shell 50 surrounds the outer circumference of the inner housing 41. The shielding shell 50 is, for example, formed in a cylindrical shape overall. The shielding shell 50 is, for example, open in the first direction X1 and open in the first reverse direction X2. The shielding shell 50 is, for example, made of metal. Examples of materials for the shielding shell 50 include copper, aluminum, and iron. In this embodiment, the shielding shell 50 is made of die-cast aluminum.
[0053] The shield shell 50 includes a housing portion 51 for housing the inner housing 41 and a wire housing portion 60 for housing the shielded wires 20 exposed from the inner housing 41. The shield shell 50 is, for example, a single component in which the housing portion 51 and the wire housing portion 60 are continuously and integrally formed.
[0054] The storage portion 51 is, for example, located closer to the wire storage portion 60 in the first direction X1. The storage portion 51 is formed in a cylindrical shape. The internal space of the storage portion 51 is, for example, sized to accommodate the entire inner housing 41. The inner circumference of the storage portion 51 is, for example, formed to increase in size as it moves from the wire storage portion 60 toward the end in the first direction X1.
[0055] The wire storage portion 60 is provided at the end of the shield shell 50 in the first opposite direction X2. The wire storage portion 60 is cylindrical. The internal space of the wire storage portion 60 is, for example, smaller than the internal space of the housing portion 51. The inner circumference of the end of the wire storage portion 60 in the first direction X1 is, for example, smaller than the inner circumference of the end of the housing portion 51 in the first opposite direction X2. The inner circumference of the end of the wire storage portion 60 in the first direction X1 is, for example, sized to prevent insertion of the inner housing 41.
[0056] like Figure 6 and Figure 7As shown, the wire storage portion 60 has, for example, two through-holes 61, through which two shielded wires 20 are individually passed. Each through-hole 61 passes through the wire storage portion 60 in the first direction X1. The planar shape of each through-hole 61 viewed from the through-hole 61 (here, the first direction X1) can be formed into any shape. The planar shape of each through-hole 61 viewed from the first direction X1 can be formed into, for example, a circular, polygonal, square, or flat shape. Figure 7 As shown, the planar shape of each through hole 61 viewed from the press-fitting direction D1 (here, the first direction X1) is formed, for example, along the shape of the outer peripheral surface of the press-fitting portion 72 of the shield sleeve 70. The planar shape of each through hole 61 viewed from the press-fitting direction D1 of this embodiment is formed into a quadrilateral. Figure 6 In, omitted Figure 2 The sealing member 90, the limiting member 100 and the stopper 110 are shown.
[0057] The wire storage portion 60 includes a partition wall 62 that partitions the two through-holes 61. The partition wall 62 is provided between the two through-holes 61 in the second direction Y1. The partition wall 62 extends, for example, along the first direction X1. The partition wall 62 forms a portion of the inner circumference of the two through-holes 61.
[0058] The wire storage portion 60 has a plurality of protrusions 63 provided on the inner circumferential surface of each through hole 61. That is, in the wire storage portion 60, a plurality of (here, eight) protrusions 63 are provided for the inner circumferential surfaces of the two through holes 61, respectively. Each protrusion 63 protrudes from the inner circumferential surface of the through hole 61 toward the radial inner side of the through hole 61. The top end surface of each protrusion 63 contacts the outer circumferential surface of the press-in portion 72 of the shielding sleeve 70. In the wire storage portion 60, the top end surfaces of all eight protrusions 63 contact the outer circumferential surface of the press-in portion 72. Here, the press-in portion 72 contacts the eight protrusions 63 in a pressed-in state. That is, the portion of the wire storage portion 60 where the protrusions 63 are provided is the portion where the press-in portion 72 is pressed.
[0059] The eight protrusions 63 are arranged at intervals along the circumference of each through-hole 61. For example, two protrusions 63 are provided on the inner circumference of each side of the quadrilateral through-hole 61. The eight protrusions 63 include two protrusions 63A that protrude in the second direction Y1 and two protrusions 63B that protrude in the second opposite direction Y2. The eight protrusions 63 include two protrusions 63C that protrude in the third direction Z1 and two protrusions 63D that protrude in the third opposite direction Z2. The two protrusions 63A are arranged, for example, so as to oppose the two protrusions 63B in the second direction Y1. The two protrusions 63C are arranged, for example, so as to oppose the two protrusions 63D in the third direction Z1.
[0060] The space inside each through-hole 61, beyond the top surfaces of the eight protrusions 63, is smaller than the outer circumference of the press-fit portion 72 of the shield sleeve 70. The shortest distance between the top surfaces of the protrusions 63A and 63B is, for example, smaller than the length of the press-fit portion 72 along the second direction Y1. The shortest distance between the top surfaces of the protrusions 63C and 63D is smaller than the length of the press-fit portion 72 along the third direction Z1.
[0061] like Figure 8 As shown, each protrusion 63 extends, for example, along the pressing direction D1 of the shielding sleeve 70 relative to the shielding shell 50. Here, the pressing direction D1 extends along the axial direction of the through hole 61. Each protrusion 63 is provided, for example, at the end of the first direction X1 of the wire storage portion 60. Each protrusion 63 extends, for example, from the end of the first direction X1 of the wire storage portion 60 toward the first reverse direction X2. Each protrusion 63 is formed, for example, so that the width becomes smaller as it moves from the end of the first direction X1 of the wire storage portion 60 toward the end of the first reverse direction X2. In addition, in Figure 8 In FIG. 1 , only the shield shell 50 and the shield sleeve 70 in the connector 30 are exploded and shown.
[0062] The top surface of each protrusion 63 includes, for example, a second inclined surface 64 and a guide surface 65. The guide surface 65 is provided at the end of the protrusion 63 in the first reverse direction X2. The second inclined surface 64 inclines radially outward of the shield case 50 as one moves from the end of the protrusion 63 in the first direction X1 toward the guide surface 65. In other words, the second inclined surface 64 inclines radially inward of the through-hole 61 as one moves from upstream in the direction D1 in which the shield sleeve 70 is pressed into the shield case 50 toward downstream in the direction D1. Consequently, the internal space enclosed by the plurality of protrusions 63 in the through-hole 61 is formed to decrease in size as one moves downstream in the direction D1 in which the shield sleeve 70 is pressed into the shield case 50.
[0063] The guide surface 65 is formed to guide the shield sleeve 70 downstream in the press-fitting direction D1. The guide surface 65 inclines radially outward of the shield shell 50 as it moves from the second inclined surface 64 toward the end of the protrusion 63 in the first reverse direction X2. In other words, the guide surface 65 inclines radially inward of the through-hole 61 as it moves from upstream in the press-fitting direction D1 toward downstream in the press-fitting direction D1. For example, the guide surface 65 is inclined more steeply with respect to the press-fitting direction D1 than the second inclined surface 64. For example, the angle formed by a plane parallel to the press-fitting direction D1 and the guide surface 65 is greater than the angle formed by a plane parallel to the press-fitting direction D1 and the second inclined surface 64.
[0064] like Figure 7As shown, the cross-section of the top surface of each protrusion 63, taken along a plane perpendicular to the insertion direction D1, is formed into an R-shape. Specifically, the cross-section of the top surface of each protrusion 63, taken along the plane dividing the protrusion 63 in the insertion direction D1, is formed into an R-shape. In other words, the cross-section of the top surface of each protrusion 63, taken along the plane dividing the protrusion 63 in the insertion direction D1, is formed into a curved shape without sharp corners. In other words, the cross-section along the top surface of each protrusion 63 is formed into an R-shape.
[0065] like Figure 6 As shown, a shielding sleeve 70, mounted on the outer periphery of each shielded wire 20, is press-fitted into each through-hole 61 of the wire storage portion 60. Specifically, a press-fit portion 72 of the shielding sleeve 70, secured to the outer periphery of each shielded wire 20, is press-fitted into the interior space of each through-hole 61, closer to the inside than the plurality of protrusions 63. At this point, the top surfaces of all eight protrusions 63 in each through-hole 61 are in contact with the outer periphery of the press-fit portion 72. This electrically and mechanically connects the shielding shell 50 to the shielding sleeve 70. Furthermore, the shielding sleeve 70, pressed into each through-hole 61, is retained by the shielding shell 50. Consequently, the shielded wire 20, secured to the shielding sleeve 70, is retained by the shielding shell 50.
[0066] One or more (four in this embodiment) engaging portions 52 are provided on the outer circumference of the shield shell 50. Each engaging portion 52 is provided on the outer circumference of the shield shell 50 at an end portion in the first reverse direction X2. Each engaging portion 52 is provided, for example, on the outer circumference of the wire storage portion 60. Each engaging portion 52 is formed so as to protrude radially outward from the outer circumference of the shield shell 50.
[0067] (Structure of Sealing Member 90) like Figure 4 As shown, two sealing members 90 are respectively assembled to the two shielded electric wires 20. Each sealing member 90 is assembled to the outer peripheral surface of the sheath 24 of each shielded electric wire 20. Each sealing member 90 is arranged closer to the first opposite direction X2 than the shielding sleeve 70. The two sealing members 90 are individually fitted into the inner side of the two through-holes 61. Each sealing member 90 is formed into a ring shape having an outer peripheral surface along the inner peripheral surface of the through-hole 61. Each sealing member 90 has a through-hole 91, and each shielded electric wire 20 is inserted into the through-hole 91. The inner peripheral surface of the through-hole 91 is formed into a shape along the outer peripheral surface of the shielded electric wire 20. Each sealing member 90 is configured to be elastically deformable. Each sealing member 90 is in close contact with the outer peripheral surface of the shielded electric wire 20 and in close contact with the inner peripheral surface of the through-hole 61. Each sealing member 90 seals between the outer peripheral surface of the shielded electric wire 20 and the inner peripheral surface of the shielding shell 50. In addition, each sealing member 90 is made of rubber, for example.
[0068] (Structure of Restriction Member 100) The restriction member 100 is attached to the outer periphery of the two shielded wires 20 , for example. The restriction member 100 is attached to the outer periphery of the sheath 24 of the two shielded wires 20 . The restriction member 100 is provided closer to the sealing member 90 in the first reverse direction X2 . The restriction member 100 is housed inside the shield case 50 .
[0069] (Structure of Stopper 110) like Figure 3 As shown, the stopper 110 is, for example, mounted at the end of the shielding shell 50 in the first reverse direction X2. The stopper 110 prevents the sealing member 90 and the limiting member 100 from being removed from the shielding shell 50. The stopper 110 includes a main body 111 and a connecting portion 112 that protrudes from the main body 111 in the first direction X1. The main body 111 is provided to seal the opening of the shielding shell 50 in the first reverse direction X2. The main body 111 includes two wire insertion holes 111X, through which two shielded wires 20 are individually inserted. Each wire insertion hole 111X extends through the main body 111 in the first direction X1. The connecting portion 112 is provided to cover a portion of the outer peripheral surface of the shielding shell 50. The connecting portion 112 includes an engaging portion 113 that engages with the engaging portion 52 of the shielding shell 50. The engagement portion 113 of the stopper 110 and the engagement portion 52 of the shield shell 50 engage with each other, whereby the stopper 110 is attached to the shield shell 50 .
[0070] Furthermore, each shielded electric wire 20 passes through the sealing member 90 , the restriction member 100 , and the stopper 110 in the first reverse direction X2 and is drawn out to the outside of the shield case 50 . (Manufacturing Method of Wire Harness 10) Next, an example of a method for manufacturing the wire harness 10 will be described.
[0071] First, if Figure 9 As shown, shielding sleeves 70 are individually attached to the plurality of shielded wires 20. Specifically, the shielding sleeves 70 are secured to the outer circumference of the shielded wires 20 by fixing members 75, with the wire connection portion 71 of the shielding sleeve 70 in contact with the outer circumference of the electromagnetic shielding member 23. Next, sealing members 90 are individually attached to the plurality of shielded wires 20. In this step, the inner housing 41 and the shield shell 50 are prepared, and the inner housing 41 is housed in the housing portion 51 of the shield shell 50.
[0072] Then, if Figure 10 As shown in FIG. 1 , the shielded wire 20 to which the shield sleeve 70 and the sealing member 90 are attached is inserted into the shield shell 50 along the press-fitting direction D1. Figure 10 The press-fit portion 72 of the shield sleeve 70 begins to be pressed into the through hole 61 of the shield shell 50. The outer circumference of the press-fit portion 72 before being pressed into the shield shell 50 is larger than the space provided inside the top end surfaces of the plurality of protrusions 63 in the through hole 61.
[0073] Then, if Figure 11 As shown, when the shielding sleeve 70 is inserted into the through-hole 61 along the press-fit direction D1, the press-fit portion 72 of the shielding sleeve 70 is pressed into the through-hole 61. At this time, the press-fit portion 72 is pressed radially inward by the multiple protrusions 63 provided on the inner circumferential surface of the through-hole 61. As a result, the press-fit portion 72 is pressed into the through-hole 61 while deforming, such as by reducing its diameter. At this time, an area is formed on the inner circumferential surface of the through-hole 61 where no protrusions 63 are provided in the circumferential direction of the through-hole 61. Therefore, the deformation of the press-fit portion 72 can be released in such an area where no protrusions 63 are provided. As a result, the press-fit portion 72 can be appropriately pressed into the through-hole 61 while being deformed.
[0074] Then, by Figure 3 The restricting member 100 and the stopper 110 shown are assembled to the shield shell 50 , and the wire harness 10 can be manufactured. Next, the effects of this embodiment will be described.
[0075] (1) The connector 30 includes a conductive terminal 31 connected to the end of the core wire 21 of the shielded wire 20. The connector 30 includes a conductive shielding sleeve 70, which is attached to the outer periphery of the shielded wire 20 in a state of contact with the outer periphery of the electromagnetic shielding member 23 of the shielded wire 20. The connector 30 includes a conductive shielding shell 50, which covers the terminal 31 and the shielding sleeve 70. The shielding shell 50 includes a through-hole 61 through which the shielded wire 20 is inserted. The shielding sleeve 70 includes a press-fit portion 72, which is pressed into the through-hole 61 along a press-fit direction D1 extending parallel to the axial direction of the through-hole 61. The press-fit portion 72 is in contact with the shielding shell 50 in a pressed-fit state.
[0076] With this structure, the shield sleeve 70 contacts the outer periphery of the electromagnetic shield member 23, and the press-fit portion 72 of the shield sleeve 70 contacts the shield shell 50 in a press-fit state. This electrically connects the shield sleeve 70 and the electromagnetic shield member 23, and also the shield sleeve 70 and the shield shell 50. Furthermore, the connection between the shield sleeve 70 and the shield shell 50 can be formed into a press-fit structure, thereby achieving a more secure connection between the shield sleeve 70 and the shield shell 50 than when the shield sleeve 70 and the shield shell 50 are connected by springs. This securely holds the shield sleeve 70 to the shield shell 50, and the shielded wire 20 can be securely held to the shield shell 50. Therefore, even when the shielded wire 20 vibrates due to, for example, vehicle travel, the movement (e.g., shaking) of the shielded wire 20 can be appropriately restricted at the connection between the shield sleeve 70 and the shield shell 50. As a result, wear of the contact portion between the shield sleeve 70 and the shield shell 50 can be suppressed, thereby minimizing degradation of electromagnetic shielding performance.
[0077] (2) Furthermore, even when the shielded wire 20 vibrates, the movement of the shielded wire 20 is restricted at the connection portion between the shield sleeve 70 and the shield shell 50, thereby suppressing the transmission of vibration to the terminal 31 located closer in the first direction X1 than the connection portion. Consequently, wear at the contact point between the terminal 31 and the terminal 201 due to vibration of the shielded wire 20 can be appropriately suppressed.
[0078] (3) A first inclined surface 73 is provided on the outer peripheral surface of the press-fit portion 72. The first inclined surface 73 is inclined toward the radial inner side of the through-hole 61 as it moves from the upstream of the press-fit direction D1 toward the downstream of the press-fit direction D1. Therefore, the outer peripheral dimension of the press-fit portion 72 is formed to decrease as it moves from the upstream of the press-fit direction D1 toward the downstream of the press-fit direction D1. Therefore, the press-fit portion 72 has various outer peripheral dimensions. As a result, the first inclined surface 73 can appropriately absorb the dimensional tolerances of the shielding sleeve 70 and the shielding shell 50. As a result, even when the dimensional tolerances of the shielding sleeve 70 and the shielding shell 50 are large, the press-fit portion 72 can be appropriately pressed into the through-hole 61.
[0079] (4) A plurality of protrusions 63 that contact the press-fit portion 72 of the shield sleeve 70 in a press-fit state are provided at intervals along the circumference of the through-hole 61. In other words, on the inner circumferential surface of the through-hole 61, a portion of the circumference of the through-hole 61 includes a wall portion that contacts the press-fit portion 72 in a press-fit state, i.e., an area where the protrusions 63 are not provided. By providing such an area, even if the press-fit portion 72 is deformed when being pressed into the through-hole 61, the deformation of the press-fit portion 72 can be appropriately released to the above-mentioned area. Thus, deformation of the press-fit portion 72 during press-fitting can be tolerated, thereby improving the assembly efficiency of the shield sleeve 70 and the shield shell 50 when the press-fit portion 72 is pressed into the through-hole 61.
[0080] (5) A second inclined surface 64 is provided on the top surface of each protrusion 63. The second inclined surface 64 is inclined radially inward of the through-hole 61 as it moves from upstream in the press-fitting direction D1 toward downstream in the press-fitting direction D1. Therefore, the space provided inward of the plurality of protrusions 63 in the through-hole 61 is formed so as to become smaller as it moves from upstream in the press-fitting direction D1 toward downstream in the press-fitting direction D1. Thus, the second inclined surface 64 can appropriately accommodate dimensional tolerances of the shielding sleeve 70 and the shielding case 50. Therefore, even when the dimensional tolerances of the shielding sleeve 70 and the shielding case 50 are large, the press-fit portion 72 can be appropriately press-fitted into the through-hole 61.
[0081] (6) A guide surface 65 is provided on the top surface of the protrusion 63. The guide surface 65 is inclined more radially inward of the through-hole 61 than the second inclined surface 64 as it moves from upstream in the press-fitting direction D1 toward downstream in the press-fitting direction D1. With this configuration, when the press-fit portion 72 is press-fitted into the through-hole 61, the press-fit portion 72 is guided downstream in the press-fitting direction D1 along the guide surface 65 of the protrusion 63. This improves the workability when press-fitting the press-fit portion 72 into the through-hole 61.
[0082] (7) Since the distal end surface of the protrusion 63 is formed in an R shape, the shield sleeve 70 is less likely to be damaged than, for example, a shape having sharp corners. (8) The press-fit portion 72 is formed into a square cylindrical shape. The planar shape of the through-hole 61 as viewed from the press-fit direction D1 is formed into a square shape. With this structure, when the press-fit portion 72 is pressed into the through-hole 61, relative rotation of the press-fit portion 72 relative to the through-hole 61 about an axis extending along the press-fit direction D1 is appropriately suppressed. As a result, relative rotation of the shielded electric wire 20 relative to the through-hole 61 about an axis extending along the press-fit direction D1 is suppressed.
[0083] (9) The outer circumference of the press-fit portion 72, which is pressed into the through-hole 61, is formed to be larger than the outer circumference of the wire connection portion 71, which is connected to the outer circumference of the electromagnetic shielding member 23. Thus, even if the press-fit portion 72 is deformed by being pressed into the through-hole 61, damage to the electromagnetic shielding member 23 due to the deformation of the press-fit portion 72 can be appropriately suppressed.
[0084] (10) The shield shell 50 is made of aluminum die casting. With this structure, the shield shell 50 having conductivity can be easily manufactured. (Other embodiments) The above embodiment can be implemented as the following modifications. The above embodiment and the following modifications can be implemented in combination with each other within the scope of no technical contradiction.
[0085] The structure of the shield sleeve 70 in the above-mentioned embodiment can be modified as appropriate. In the above embodiment, the press-fit portion 72 is provided at the end of the shielding sleeve 70 in the first reverse direction X2, but the present invention is not limited thereto. For example, the press-fit portion 72 may be provided at the end of the shielding sleeve 70 in the first direction X1. In this case, for example, the wire connecting portion 71 is provided closer to the first reverse direction X2 than the press-fit portion 72.
[0086] In the above embodiment, the press-fit portion 72 is formed in a square cylindrical shape, but the present invention is not limited thereto. For example, the press-fit portion 72 may be formed in a cylindrical shape. In the above embodiment, the first inclined surface 73 is provided on the outer peripheral surface of the press-fit portion 72 , but the present invention is not limited thereto. For example, the press-fit portion 72 may be formed so that the outer peripheral dimension is constant over the entire axial length of the press-fit portion 72 .
[0087] The structure of the shielding case 50 in the above embodiment can be modified as appropriate. For example, as long as it covers the terminal 31 and has a through-hole 61 into which the press-fit portion 72 of the shielding sleeve 70 is pressed, other structures are not particularly limited. For example, the number of protrusions 63 is not particularly limited. For example, one protrusion 63 may be provided on the inner circumference of each side of the through-hole 61 forming a quadrilateral. For example, three protrusions 63 may be provided on the inner circumference of each side of the through-hole 61 forming a quadrilateral.
[0088] In the above embodiment, a plurality of protrusions 63 are provided at intervals along the circumference of the through-hole 61 , but the present invention is not limited thereto. For example, a single protrusion 63 may be formed continuously along the entire circumference of the through-hole 61 .
[0089] The shield case 50 in the above embodiment is not limited to being made of aluminum die casting. For example, the shield case 50 may be formed by a processing method such as cutting. The inner housing 41 of the above embodiment is not particularly limited in other structures as long as it has a structure capable of accommodating the terminals 31. For example, the inner housing 41 may be formed of a copper-based, aluminum-based, or iron-based metal material.
[0090] The sealing member 90 in the above embodiment may be omitted. The restriction member 100 in the above embodiment may be omitted. The stopper 110 of the above embodiment may be omitted.
[0091] The structure of the terminal 31 in the above embodiment can be modified as appropriate. The structure of the shielded electric wire 20 in the above-described embodiment can be modified as appropriate. The sheath 24 of the shielded electric wire 20 of the above embodiment may be omitted.
[0092] The number of terminals 31 provided in the connector 30 of the above embodiment is not limited to two. For example, the number of terminals 31 provided in the connector 30 may be one or three or more. Furthermore, the number of shielded wires 20 may be appropriately changed depending on the number of terminals 31.
[0093] In the illustrated embodiment, the wire connection portion 71 of each shielding sleeve 70 is sometimes referred to as a small-diameter cylindrical portion. This small-diameter cylindrical portion may directly contact the radially outer surface of the electromagnetic shielding member 23 of the corresponding shielded wire 20, but not the radially inner surface of the through-hole 61 of the wire receiving portion 60. The press-fit portion 72 of each shielding sleeve 70 is sometimes referred to as a large-diameter cylindrical portion. This large-diameter cylindrical portion may directly contact the radially inner surface of the through-hole 61 of the wire receiving portion 60, but not the radially outer surface of the corresponding shielded wire 20. As in the illustrated embodiment, the shielding sleeve 70 may include a sloped surface that forms a radial step between the wire connection portion 71 and the press-fit portion 72, or that continuously connects the wire connection portion 71 and the press-fit portion 72. The one or more protrusions 63 of each through-hole 61 in the above-described embodiment are sometimes referred to as non-elastic protrusions or teeth. These protrusions are configured to, for example, rigidly contact the radially outer surface of the press-fit portion 72 of the corresponding shielding sleeve 70. The second inclined surface 64 of each protrusion 63 of each through-hole 61 in the above embodiment is sometimes referred to as a friction contact surface. It is configured to frictionally contact a radially outward local position of the corresponding press-fit portion 72 of the shield sleeve 70 .
[0094] The embodiments disclosed herein are to be considered in all respects as illustrative and non-restrictive. The scope of the present invention is defined by the claims rather than the above, and is intended to encompass all modifications within the meaning and scope equivalent to the claims. Description of Reference Numerals
[0095] C1 Connector Assembly D1 Press-in direction 10 Wiring Harness 20 shielded wires 21 core wire 22 Insulation coating 23 Electromagnetic shielding components 24 sheath 30 connectors 31 terminal 32 Wire connection 33 Terminal connection 40 Connector housing 41 inner shell 42 base 43 Storage Tube 44 Terminal storage area 45, 46 Sealing components 50 shielding shell 51 Storage Department 52 snap-fit portion 60 Wire Storage 61 through hole 62 partition wall 63, 63A, 63B, 63C, 63D protrusions 64 Second inclined surface 65 guide surface 70 shielding sleeve 71 Wire connection 72 Press-fit portion 73 First inclined surface 75 fixed components 80 leaf spring 90 Sealing component 91 through hole 100 Restriction components 110 stop body 111 Main body 111X Wire Through Hole 112 Connection 113 snap-fit part 200 connector 201 terminal 202 connector housing 210 housing
Claims
1. A connector connected to an end of a shielded wire, the shielded wire comprising: a core wire having conductivity; an insulating coating surrounding the outer periphery of the core wire; and an electromagnetic shielding member surrounding the outer periphery of the insulating coating and having conductivity, the connector comprising: a terminal connected to the core wire and having conductivity; a shield sleeve that is mounted on the outer periphery of the shielded electric wire in a state of being in contact with the outer periphery of the electromagnetic shield member and has conductivity; as well as A shielding shell covers the terminal and the shielding sleeve and has conductivity, The shield shell has a through hole, and the shield wire passes through the through hole. The shield sleeve includes a press-fit portion that is press-fitted into the through hole along a press-fit direction extending parallel to the axial direction of the through hole. The press-fit portion contacts the shielding case in a press-fit state.
2. The connector according to claim 1, wherein The outer peripheral surface of the press-fit portion has a first inclined surface that is inclined toward the radial inner side of the through-hole as it moves from upstream in the press-fit direction toward downstream in the press-fit direction.
3. The connector according to claim 1, wherein A plurality of protrusions are provided on the inner peripheral surface of the through hole and protrude radially inward of the through hole. The plurality of protrusions are arranged at intervals along the circumference of the through hole. The press-fit portion contacts the distal end surface of each of the plurality of protrusions in a press-fit state.
4. The connector according to claim 3, wherein The plurality of protrusions extend respectively along the pressing direction, The tip end surface has a second inclined surface that is inclined toward the radial inner side of the through hole as it moves from upstream in the press-fitting direction toward downstream in the press-fitting direction.
5. The connector according to claim 4, wherein The top end surface has a guide surface for guiding the shielding sleeve downstream in the pressing direction. The guide surface is inclined toward the radial inner side of the through hole as it moves from the upstream side in the press-fitting direction toward the downstream side in the press-fitting direction. The guide surface is inclined more sharply than the second inclined surface with respect to the press-fitting direction. The connector according to claim 3 , wherein: The cross-sectional shape of the tip end surface obtained by cutting the protruding portion along a plane perpendicular to the pressing direction is formed into an R-shape.
7. The connector according to claim 1, wherein The press-in portion is formed into a square tube shape. The through hole is formed into a quadrilateral in a planar shape when viewed from the press-fitting direction.
8. The connector according to claim 1, wherein The shield sleeve includes the press-fit portion and a wire connecting portion, the wire connecting portion being integrally formed continuously from the press-fit portion and connected to the electromagnetic shield member. The outer circumference of the press-in portion is larger than the outer circumference of the wire connecting portion.
9. The connector according to claim 1, wherein The shielding shell is made of aluminum die-casting.
10. A wiring harness comprising the connector according to any one of claims 1 to 9 and The shielded electric wire is connected to the terminal.
Citation Information
Patent Citations
Connector and wire harness
JP2022155937A