Shield connector

Abstract

To provide a shield connector with a simple configuration capable of stable connection to an external GND member.SOLUTION: A shield wire 2 includes: a shield wire body 13 including a core wire 19, an insulation coating 20, a shield member 12, and a wire sheathing 23; an underlay ring 46 that covers a circumference of the wire sheathing 23 at a tip of the wiring sheathing 23 and has a circumference covered by a folding part 22 of the shield member 12; and a shielding body 15 connected to the folding part 22. The shielding body 15 has a crimped part 37 that is formed in a cylindrical shape by a metal sheet material and crimped in a manner that sandwiches the folding part 22 between itself and the underlay ring 46; and a shell body part 38 having a plate spring part to come into press-contact with an external GND member. The underlay ring 46 has: an underlay body part 46a provided at a position corresponding to the crimped part 37; and a large diameter part 46b that is provided at a position corresponding to a boundary between the crimped part 37 and the shell body part 38 and has a larger diameter than the diameter of the underlay body part 46a.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present disclosure relates to a shield connector.

Background Art

[0002] Conventionally, as a shield connector, there is one including a shielded wire body having a shield material made of braiding or the like, and a fixing ferrule, a shield, and a corrugated spring washer for connecting the shield material to an external GND member (see, for example, Patent Document 1). In this shield connector, since the corrugated spring washer is provided separately from the shield, stable connection to the external GND member is enabled.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the above shield connector has a problem that the configuration is complicated. Specifically, for example, since the corrugated spring washer is provided separately from the shield, the number of parts has increased. Also, for example, the shield was a machined part. These things cause an increase in the manufacturing cost of the shield connector.

[0005] An object of the present disclosure is to provide a shield connector that enables simplified configuration while enabling stable connection to an external GND member.

Means for Solving the Problems

[0006] The shield connector of the present disclosure includes a shielded wire body having a core wire, an insulating coating covering the outer periphery of the core wire, a shielding material covering the outer periphery of the insulating coating, and a covering material covering the outer periphery of the shielding material, an electrical terminal fixed to the core wire, an underlay ring covering the outer periphery of the covering material at the tip of the covering material and covering the outer periphery of the folded-back portion of the shielding material, and a shield connected to the folded-back portion and electrically connectable to an external GND member. The shield is formed in a cylindrical shape from a metal plate material, and has a crimping portion crimped so as to sandwich the folded-back portion with the underlay ring, and a shell main body portion formed with a leaf spring portion capable of pressing contact with the external GND member. The underlay ring has an underlay main body portion provided at a position corresponding to the crimping portion, and a large-diameter portion provided at a position corresponding to the boundary between the crimping portion and the shell main body portion and having a diameter larger than the diameter of the underlay main body portion.

Advantages of the Invention

[0007] According to the shield connector of the present disclosure, it is possible to simplify the configuration while enabling stable connection to an external GND member.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described. The shield connector of the present disclosure includes [1] a shielded wire body having a core wire, an insulating coating covering the outer periphery of the core wire, a shielding material covering the outer periphery of the insulating coating, and a covering material covering the outer periphery of the shielding material; an electrical terminal fixed to the core wire; an underlay ring that covers the outer periphery of the covering material at the tip of the covering material and whose outer periphery is covered by the folded-back portion of the shielding material; and a shield connected to the folded-back portion and electrically connectable to an external GND member. The shield is formed in a cylindrical shape by a metal plate material, and has a crimping portion that is crimped so as to sandwich the folded-back portion with the underlay ring, and a shell main body portion in which a leaf spring portion capable of pressing contact with the external GND member is formed. The underlay ring has an underlay main body portion provided at a position corresponding to the crimping portion, and a large-diameter portion provided at a position corresponding to the boundary between the crimping portion and the shell main body portion and having a diameter larger than that of the underlay main body portion.

[0010] According to the same configuration, since the shielding body is formed in a cylindrical shape by a metal plate material, it can be easily manufactured compared to, for example, a case where it is a machined part. Further, since the shielding body has a crimping portion that is crimped so as to sandwich the folded portion with the underlay ring, and a shell main body portion in which a leaf spring portion capable of being pressed into contact with an external GND member is formed, the number of parts is reduced compared to a configuration including a separate wave washer, for example. Therefore, the shield connector can have a simple configuration. And since the underlay ring is provided at a position corresponding to the boundary between the crimping portion and the shell main body portion and has a large-diameter portion having a diameter larger than the diameter of the underlay main body portion, it is possible to suppress the shell main body portion from being distorted when the crimping portion is crimped. Therefore, the leaf spring portion formed in the shell main body portion can also maintain a normal shape. As a result, the shielding body can be stably connected to the external GND member.

[0011] [2] In the above [1], the underlay ring may have an inclined portion whose diameter gradually decreases from the large-diameter portion toward the underlay main body portion. According to the same configuration, since the underlay ring has an inclined portion whose diameter gradually decreases from the large-diameter portion toward the underlay main body portion, for example, the shielding material is less likely to be damaged compared to a configuration having no inclined portion. That is, for example, in an underlay ring having no inclined portion, there is a risk that the shielding material may be damaged by the corner of the large-diameter portion, but this can be suppressed.

[0012] [3] In the above [1] or the above [2], the underlay main body portion may be set to have a length that protrudes outside more than the folded portion and the end portion of the crimping portion. According to the same configuration, since the underlay main body portion is set to have a length that protrudes outside more than the folded portion and the end portion of the crimping portion, it becomes possible to grasp the position of the underlay main body portion from the outside. Therefore, for example, when crimping the crimping portion, it is possible to prevent pressure from being applied to a portion corresponding to the large-diameter portion. Therefore, it is possible to suppress the shell main body portion from being distorted due to the application of pressure to a portion corresponding to the large-diameter portion.

[0013] [4] In any one of the above [1] to [3], the shielding body is attached by being inserted into the connector housing, and the shell main body portion may have an engaging portion that can engage with the connector housing so as not to come out of the connector housing.

[0014] According to the same configuration, since the shell main body portion has an engaging portion that can engage with the connector housing so as not to come out of the connector housing, it is possible to suppress the shielding body from coming out of the connector housing. And since the distortion of the shell main body portion is suppressed because the underlay ring has a large-diameter portion, the engaging portion can also maintain a normal shape. As a result, the shielding body can be stably suppressed from coming out of the connector housing.

[0015] [5] In any one of the above [1] to [4], the shielding body is attached by being inserted into the connector housing, and the shell main body portion may have a positioning portion that can engage with the connector housing in the insertion direction into the connector housing and position the shielding body.

[0016] According to the same configuration, since the shell main body portion has a positioning portion that can engage with the connector housing in the insertion direction into the connector housing and position the shielding body, it is possible to arrange the shielding body at an optimal mounting position. And since the distortion of the shell main body portion is suppressed because the underlay ring has a large-diameter portion, the positioning portion can also maintain a normal shape. As a result, it is possible to stably arrange the shielding body at an optimal mounting position.

[0017] [6] In any one of the above [1] to [5], the shielding body has a fitting portion in which the ends of the metal plate material are connected to each other in a part of the circumferential direction, and the leaf spring portion may be provided at a position where the fitting portion does not overlap in the circumferential direction.

[0018] According to the same configuration, the shield has a fitting portion where the ends of the metal plates are connected to each other in a part of the circumferential direction. And since the leaf spring portion is provided at a position where the fitting portions do not overlap in the circumferential direction, it is not affected by the fitting portion and can be easily provided.

[0019] [Details of Embodiments of the Present Disclosure] Specific examples of the present disclosure will be described below with reference to the drawings. In each drawing, for convenience of explanation, a part of the configuration may be exaggerated or simplified. Also, the dimensional ratios of each part may be different in each drawing. Further, the present invention is not limited to these examples, but is shown by the claims, and it is intended that all modifications within the meaning and scope equivalent to the claims are included.

[0020] (Configuration of Shield Connector 1) As shown in FIG. 1, the shield connector 1 includes a shielded wire 2 and a connector assembly 3 for attaching the shielded wire 2 to a connection destination. The connector assembly 3 includes a connector housing 4, a cap 5 attached to the tip of the shielded wire 2, and a rear holder 6 that covers the back of the connector housing 4. The connector housing 4 has a cylindrical portion 7 for inserting the shielded wire 2 and a hood portion 8 fixed to the connection destination. The hood portion 8 is fixed to the connection destination by a plurality (two are shown in FIG. 1) of fasteners 9. The fastener 9 is, for example, a bolt.

[0021] In the present embodiment, a plurality of shielded wires 2 are provided side by side. In the present embodiment, a total of two shielded wires 2 are provided on the + terminal side and the - terminal side. Since these shielded wires 2 have the same structure, only one side of the shielded wire 2 will be described. The cap 5 and the rear holder 6 are provided for each shielded wire 2. The cap 5 is formed, for example, in a substantially cylindrical shape. The rear holder 6 is formed, for example, in a shape that holds the shielded wire 2 and allows the shielded wire 2 to be pulled out from the back of the cylindrical portion 7 of the connector housing 4. The rear holder 6 is fixed to the connector housing 4 by, for example, a locking structure.

[0022] (Configuration of Shielded Wire 2) As shown in FIGS. 3 and 4, the shielded wire 2 includes a shielded wire body 13 having a shielding material 12 (see FIG. 3) for shielding noise, an electrical terminal 14 attached to the tip of the shielded wire body 13, and a cylindrical shielding body 15 connected to the shielding material 12. The shielded wire 2 is attached to the connector housing 4 when the shielding body 15 is inserted into the hole 16 (see FIG. 4) of the cylindrical portion 7.

[0023] As shown in FIG. 3, the shielded wire body 13 includes a wire material 21 having a core wire 19 and an insulating coating 20. The wire material 21 has, for example, a core wire 19 made of a conductor and an insulating coating 20 covering the outer periphery of the core wire 19. The wire material 21 is, for example, a high-voltage wire corresponding to high voltage and large current.

[0024] The core wire 19 is, for example, a stranded wire formed by twisting a plurality of metal strands, or a single-core wire made of a columnar metal bar having a solid structure inside. The core wire 19 may be, for example, a combination of a plurality of types of conductors such as a stranded wire and a single-core wire. As the material of the core wire 19, for example, a metal material such as a copper-based or aluminum-based material is used.

[0025] The insulating coating 20 covers, for example, the outer peripheral surface of the core wire 19 over the entire circumference. The insulating coating 20 is made of an insulating material such as synthetic resin, for example. As the material of the insulating coating 20, a synthetic resin mainly composed of a polyolefin-based resin such as cross-linked polyethylene or cross-linked polypropylene is used, for example. As the material of the insulating coating 20, one kind of material may be used alone, or two or more kinds of materials may be appropriately combined and used.

[0026] The shielding material 12 is, for example, a braid (braided wire) formed by bundling thin metal wires in a braided shape. The shielding material 12 has a folded-back portion 22 formed by folding back the shielding material 12 at the end of the shielding material 12. Specifically, first, the shielded electric wire body 13 has a covering material 23 that covers the outer periphery of the shielding material 12. The covering material 23 is, for example, a resin protective covering. And the folded-back portion 22 is folded back so as to cover the outer periphery of the tip of the covering material 23.

[0027] (Configuration of the mating connector 26) As shown in FIG. 2, the connector assembly 3 (connector housing 4) is fitted to a mating connector 26 which is the connection destination of the shield connector 1. The mating connector 26 has a mating connector terminal 27 that is connected to the electrical terminal 14. Also, the mating connector 26 has an external GND member 28 to which the shielding body 15 is electrically connected. The external GND member 28 is composed of a metal material having an inner peripheral surface facing the outer peripheral surface of the shielding body 15. Note that the external GND member 28 may also serve as, for example, the metal case of an electrical device.

[0028] (Configuration of the electrical terminal 14) The electrical terminal 14 has a terminal body 30 to which the mating connector terminal 27 of the mating connector 26 is connected, and a terminal end portion 31 fixed to the core wire 19. The terminal body 30 is exposed outside the shielding body 15. The terminal end portion 31 is housed inside the shielding body 15. In the present embodiment, the electrical terminal 14 is formed such that the terminal body 30 is cylindrical and the terminal end portion 31 is flat. Note that a cylindrical member 14a is fixed to the electrical terminal 14 of the present embodiment so as to cover the outer periphery of the terminal body 30. The electrical terminal 14 is housed inside the cap 5 when the cap 5 is attached. Thus, the cap 5 covers the electrical terminal 14.

[0029] (Sealing structure of the connector assembly 3) As shown in FIGS. 2 and 4, the connector housing 4 is provided with a first seal member 33 for sealing the gap between the connector housing 4 and the mating connector 26. The first seal member 33 is, for example, a rubber seal. The first seal member 33 is attached, for example, to the outer periphery of the cylinder portion 7 on the side where the cap 5 is inserted.

[0030] A second seal member 34 for sealing the gap between the shielded electric wire 2 and the connector housing 4 is provided therebetween. The second seal member 34 is, for example, a rubber seal. The second seal member 34 is disposed, for example, between the outer peripheral surface of the shielded electric wire 2 and the inner peripheral surface of the cylinder portion 7.

[0031] (Configuration of the shielding body 15) As shown in FIGS. 2 to 6, the shielding body 15 is formed in a cylindrical shape by a metal plate material. The shielding body 15 has a crimping portion 37 fixed to the folded-back portion 22 of the shielding material 12 by crimping, and a shell main body portion 38 electrically connected to the external GND member 28 (see FIG. 2) of the mating connector 26 in a state where the electrical terminal 14 is electrically connected to the mating connector terminal 27.

[0032] The shell main body portion 38 has a leaf spring portion 39 capable of pressing contact with the external GND member 28. As shown in FIG. 7, a plurality (four in this embodiment) of leaf spring portions 39 are provided and arranged at equal angular intervals (90° in this embodiment) in the circumferential direction of the shell main body portion 38. The leaf spring portion 39 is formed, for example, in a cantilever shape. Specifically, the leaf spring portion 39 is formed by folding back a piece extending from the end portion of the shell main body portion 38 and is elastically deformable in the radial direction. The leaf spring portion 39 has a circular protruding contact point that contacts the external GND member 28.

[0033] Further, a protrusion portion 39a capable of contacting the back surface of the leaf spring portion 39 is formed on the shell main body portion 38. The protrusion portion 39a is formed by cutting out a part of the shell main body portion 38 and bending the cut-out portion.

[0034] As shown in FIG. 5, the shell main body 38 has an engaging portion 40 that can engage with the connector housing 4 so as not to come off from the connector housing 4 when attached to the connector housing 4.

[0035] As shown in FIG. 7, a plurality (four in this embodiment) of engaging portions 40 are provided on the outer peripheral surface of the shell main body 38. The engaging portions 40 are arranged at equal angular intervals (90° in this embodiment) in the circumferential direction of the shell main body 38. Further, the engaging portion 40 of this embodiment is provided at a position shifted by 45° from the leaf spring portions 39 in the circumferential direction of the shell main body 38. The engaging portion 40 is formed, for example, in a protruding shape having a slope whose surface slopes downward in the direction of inserting the shielding body 15 into the connector housing 4 (left direction in FIG. 5).

[0036] Also, as shown in FIG. 5, when the shell main body 38 is attached to the connector housing 4, it has a positioning portion 41 that can engage with the connector housing 4 and position the shielding body 15 in the insertion direction into the connector housing 4 (left direction in FIG. 5).

[0037] As shown in FIG. 7, a plurality (four in this embodiment) of positioning portions 41 are provided on the outer peripheral surface of the shell main body 38. The positioning portions 41 are arranged at equal angular intervals (90° in this embodiment) in the circumferential direction of the shell main body 38. Further, the positioning portion 41 of this embodiment is provided at the same position as the engaging portion 40 in the circumferential direction of the shell main body 38. The positioning portion 41 is formed, for example, in a protruding shape having a slope whose surface slopes upward in the direction of inserting the shielding body 15 into the connector housing 4 (left direction in FIG. 5).

[0038] On the other hand, as shown in FIG. 5, the connector housing 4 is formed with a protrusion 43 that engages with the engaging portion 40 and the positioning portion 41 of the shell main body 38. The protrusion 43 is formed, for example, on the inner peripheral surface of the cylindrical portion 7.

[0039] Also, as shown in FIG. 6, the shielding body 15 has a fitting portion 15a in which the ends of the metal plates are connected to each other in a part of the circumferential direction. Note that the fitting portion 15a of the present embodiment is prevented from being separated by an engaging concave portion and an engaging convex portion that engage with each other.

[0040] Then, the leaf spring portion 39, the engaging portion 40, and the positioning portion 41 are provided at positions where the fitting portion 15a does not overlap in the circumferential direction. In other words, the leaf spring portion 39, the engaging portion 40, and the positioning portion 41 are provided at a portion where the fitting portion 15a is not arranged in the circumferential direction of the shell main body portion 38. That is, the fitting portion 15a is provided between the leaf spring portion 39 and the engaging portion 40 and the positioning portion 41 in the circumferential direction of the shell main body portion 38.

[0041] (Configuration of the underlay ring 46) As shown in FIGS. 2 and 10, the shielded electric wire 2 includes an underlay ring 46 that covers the outer periphery of the covering material 23 at the tip of the covering material 23 and whose outer periphery is covered by the folded-back portion 22 of the shielding material 12. The underlay ring 46 is made of, for example, metal. Thereby, the crimping portion 37 of the shielding body 15 is crimped so as to sandwich the folded-back portion 22 with the underlay ring 46.

[0042] As shown in FIGS. 8 to 10, the underlay ring 46 has an underlay main body portion 46a provided at a position corresponding to the crimping portion 37 in the front-rear direction, and a large-diameter portion 46b provided at a position corresponding to the boundary between the crimping portion 37 and the shell main body portion 38 and having a diameter larger than that of the underlay main body portion 46a. Note that FIGS. 8 and 9 illustrate the crimping portion 37 in a state before crimping. The diameter of the crimping portion 37 in the state before crimping is the same as the diameter of the shell main body portion 38.

[0043] Further, the underlay ring 46 has an inclined portion 46c whose diameter gradually decreases from the large-diameter portion 46b toward the underlay main body portion 46a. Also, the length of the underlay main body portion 46a is set to a length that protrudes outside the ends of the folded-back portion 22 and the crimping portion 37. In other words, the end portion (the right end portion in FIG. 10) of the underlay main body portion 46a is exposed while protruding outside the folded-back portion 22 and the crimping portion 37. Further, the tip of the large-diameter portion 46b has an inward extension portion 46d that is hooked on the end portion (the left end portion in FIG. 10) of the covering material 23.

[0044] With respect to the underlay ring 46 configured as described above, the crimping portion 37 of the shield 15 is crimped from the outside in the radial direction of the underlay main body portion 46a by applying pressure with a mold or the like so as to change from the state shown in FIG. 9 to the state shown in FIG. 10.

[0045] (Function of the cap 5) As shown in FIGS. 2 and 8, the cap 5 has a cap body 50 that houses the electrical terminal 14 of the shielded wire 2, and an outer peripheral wall 51 disposed at a predetermined interval outside the cap body 50 in the radial direction. The cap body 50 is formed in a cylindrical shape, for example. The outer peripheral wall 51 is formed in a circumferential shape around the cap body 50. When the shield 15 is attached to the connector housing 4, it is inserted into the gap 52 between the cap body 50 and the outer peripheral wall 51.

[0046] As shown in FIG. 1, a hole 53 for exposing the leaf spring portion 39 to the outside is formed in the outer peripheral wall 51 of the cap 5. Also, as shown in FIG. 8, a protrusion 54 for engaging with the shield 15 is formed on the outer peripheral surface of the cap body 50. A notch 55 for engaging with the protrusion 54 is formed in the shield 15. The notch 55 is a through hole formed, for example, when the protrusion portion 39a is provided. The cap body 50 is disposed between the electrical terminal 14 and the shield 15 when the cap 5 is attached to the shield 15, thereby insulating the electrical terminal 14 and the shield 15.

[0047] (Operation of the embodiment) Next, the operation of this embodiment will be described. As shown in FIG. 9, with the crimping portion 37 of the shield 15 disposed outside the folded-back portion 22 that covers the outer periphery of the underlay ring 46, the periphery of the crimping portion 37 is sandwiched by a mold and crimped, thereby crimping the crimping portion 37. For the crimping of the crimping portion 37, for example, caulking using a press mold is used. At this time, pressure is applied from the radially outer side of the underlay main body portion 46a, and no pressure is applied from the radially outer side of the large-diameter portion 46b.

[0048] Then, as shown in FIG. 10, while the folded-back portion 22 is sandwiched between the underlay ring 46 and the crimping portion 37, the crimping portion 37 is fixed to the outside of the folded-back portion 22. Thereby, the shield 15 is fixed to the shielded wire main body 13 while being electrically connected to the folded-back portion 22.

[0049] During this crimping process, the crimping portion 37 is deformed so that its diameter becomes smaller than the diameter of the shell main body portion 38. At this time, for example, when the underlay ring 46 does not have the large-diameter portion 46b, there is a risk that the shell main body portion 38 will also be distorted in conjunction with the deformation of the crimping portion 37, but in this embodiment, the distortion is suppressed by the large-diameter portion 46b.

[0050] After manufacturing the shielded wire 2 by attaching the shield 15 to the shielded wire main body 13, this shielded wire 2 is attached to the connector housing 4. Specifically, the shielded wire 2 is inserted into the hole 16 of the connector housing 4 (see FIG. 4). This insertion is performed until the positioning portion 41 hits the protrusion 43 of the connector housing 4 (see FIG. 5).

[0051] Also, when the shielded wire 2 is inserted to the bottom of the hole 16, the engaging portion 40 catches on the protrusion 43, thereby preventing the shielded wire 2 from coming off. Thereby, the shield 15, that is, the shielded wire 2 is fixed to the connector housing 4.

[0052] Subsequently, a cap 5 is attached to the shielded wire 2 attached to the connector housing 4. At this time, the cap 5 is attached to the shielded wire 2 by inserting the shielding body 15 into the gap 52. This insertion is performed until the leaf spring portion 39 of the shielding body 15 is positioned within the hole 53 of the cap 5 and the protrusion 54 of the cap 5 is engaged with the notch 55 of the shielding body 15. In the above manner, the assembly of the connector assembly 3 is executed.

[0053] Then, as shown in FIG. 2, when the connector assembly 3 is fitted to the mating connector 26, the electrical terminal 14 is electrically connected to the mating connector terminal 27. Also, in this state, the shielding body 15 is electrically connected to the external GND member 28 by the leaf spring portion 39 being pressed against the inner peripheral surface of the external GND member 28.

[0054] (Effects of the Embodiment) Next, the effects of the above embodiment will be described below. (1) Since the shielding body 15 is formed in a cylindrical shape from a metal plate material, it can be easily manufactured compared to, for example, a case where it is a machined part. Also, since the shielding body 15 has a crimping portion 37 that is crimped so as to sandwich the folded-back portion 22 with the backing ring 46, and a shell main body portion 38 in which a leaf spring portion 39 capable of being pressed against the external GND member 28 is formed, the number of parts is reduced compared to, for example, a configuration including a separate wave spring washer. Therefore, the shielded wire 2 can have a simple configuration.

[0055] And since the backing ring 46 is provided at a position corresponding to the boundary between the crimping portion 37 and the shell main body portion 38 and has a large-diameter portion 46b having a diameter larger than the diameter of the backing main body portion 46a, it is possible to suppress the shell main body portion 38 from being distorted when the crimping portion 37 is crimped. Therefore, the leaf spring portion 39 formed in the shell main body portion 38 can also maintain a normal shape. As a result, the shielding body 15 can be stably connected to the external GND member 28.

[0056] In addition, the folded-back portion 22 and the crimping portion 37 are likely to catch on the step between the large-diameter portion 46b and the backing main body portion 46a, thereby suppressing the detachment from the backing ring 46. That is, the large-diameter portion 46b improves the adhesion force of the crimping portion 37.

[0057] (2) Since the backing ring 46 has an inclined portion 46c whose diameter gradually decreases from the large-diameter portion 46b toward the backing main body portion 46a, for example, the shielding material 12 is less likely to be damaged compared to a configuration without the inclined portion 46c. That is, for example, in a backing ring without the inclined portion 46c, the shielding material 12 may be damaged by the corner of the large-diameter portion 46b, but this can be suppressed.

[0058] (3) Since the backing main body portion 46a is set to protrude outside more than the ends of the folded-back portion 22 and the crimping portion 37, it is possible to grasp the position of the backing main body portion 46a from the outside. Therefore, for example, when crimping the crimping portion 37, it is possible to prevent applying pressure to a portion corresponding to the large-diameter portion 46b. Therefore, it is possible to suppress the shell main body portion 38 from being distorted due to applying pressure to a portion corresponding to the large-diameter portion 46b.

[0059] (4) Since the shell main body portion 38 has an engaging portion 40 that can engage with the connector housing 4 so as not to come off from the connector housing 4, it is possible to suppress the detachment of the shielding body 15 from the connector housing 4. And since the distortion of the shell main body portion 38 is suppressed by the backing ring 46 having the large-diameter portion 46b, the engaging portion 40 can also maintain a normal shape. As a result, the detachment of the shielding body 15 from the connector housing 4 is stably suppressed.

[0060] (5) Since the shell main body 38 has a positioning portion 41 that can engage with the connector housing 4 and position the shielding body 15 in the insertion direction into the connector housing 4, it becomes possible to arrange the shielding body 15 at an optimal mounting position. And since the distortion of the shell main body 38 is suppressed because the underlay ring 46 has a large-diameter portion 46b, the positioning portion 41 can also maintain a normal shape. As a result, it becomes possible to stably arrange the shielding body 15 at an optimal mounting position.

[0061] (6) The shielding body 15 has a fitting portion 15a in which the ends of the metal plate members are connected to each other at a part in the circumferential direction. And since the leaf spring portion 39 is provided at a position where the fitting portion 15a does not overlap in the circumferential direction, it can be easily provided without being affected by the fitting portion 15a. That is, when the leaf spring portion 39 is provided at the portion where the fitting portion 15a is arranged, the leaf spring portion 39 will be divided and the configuration will become complicated, but this can be avoided. Also, in the engaging portion 40 and the positioning portion 41 as well, since they are provided at positions where the fitting portion 15a does not overlap in the circumferential direction, they can be easily provided without being affected by the fitting portion 15a.

[0062] (Modification example) The above-described embodiment can be implemented with the following modifications. The above-described embodiment and the following modification examples can be implemented in combination with each other within a technically non-contradictory range.

[0063] · In the above-described embodiment, the underlay ring 46 is provided with an inclined portion 46c whose diameter gradually decreases from the large-diameter portion 46b toward the underlay main body portion 46a, but it is not limited to this, and for example, a configuration without the inclined portion 46c may be adopted. That is, the large-diameter portion 46b and the underlay main body portion 46a may be connected by a plane extending straight in the radial direction.

[0064] ·In the above-described embodiment, the length of the underlay main body portion 46a is set to a length that protrudes outside the ends of the folded-back portion 22 and the crimping portion 37. However, the present invention is not limited to this, and the length may be set such that it does not protrude from the folded-back portion 22 and the crimping portion 37. That is, the underlay main body portion 46a may be set to a length such that it does not expose outside the folded-back portion 22 and the crimping portion 37.

[0065] ·In the above-described embodiment, the shell main body portion 38 has an engaging portion 40 that can engage with the connector housing 4 so as not to come out of the connector housing 4. However, the present invention is not limited to this, and a configuration without the engaging portion 40 may also be used.

[0066] ·In the above-described embodiment, the shell main body portion 38 has a positioning portion 41 that can engage with the connector housing 4 in the insertion direction into the connector housing 4 and positions the shielding body 15. However, the present invention is not limited to this, and a configuration without the positioning portion 41 may also be used.

[0067] ·In the above-described embodiment, the leaf spring portion 39 is provided at a position where the fitting portion 15a does not overlap in the circumferential direction in the circumferential direction of the shell main body portion 38. However, the present invention is not limited to this, and it may be provided at a portion where the fitting portion 15a is arranged. Also, the engaging portion 40 is provided at a position where the fitting portion 15a does not overlap in the circumferential direction in the circumferential direction of the shell main body portion 38. However, the present invention is not limited to this, and it may be provided at a portion where the fitting portion 15a is arranged. Also, the positioning portion 41 is provided at a position where the fitting portion 15a does not overlap in the circumferential direction in the circumferential direction of the shell main body portion 38. However, the present invention is not limited to this, and it may be provided at a portion where the fitting portion 15a is arranged.

[0068] ·The shape and number of the leaf spring portion 39 in the above-described embodiment may be changed. Also, the shape and number of the engaging portion 40 in the above-described embodiment may be changed. Also, the shape and number of the positioning portion 41 in the above-described embodiment may be changed.

[0069] · In the above-described embodiment, the shielding material 12 is a braid formed by braiding thin metal wires. However, the present invention is not limited to this, and for example, it may be changed to other shielding materials such as aluminum foil.

[0070] · In the above-described embodiment, the electrical terminal 14 is configured such that the terminal body 30 is exposed outside the shielding body 15. However, the present invention is not limited to this, and for example, the terminal body 30 may also be disposed inside the shielding body 15.

Explanation of Reference Numerals

[0071] 1 Shield Connector 2 Shielded Electric Wire 3 Connector Assembly 4 Connector Housing 5 Cap 6 Rear Holder 7 Cylindrical Portion 8 Hood Portion 9 Fastener 12 Shielding Material 13 Shielded Electric Wire Body 14 Electrical Terminal 14a Cylindrical Member 15 Shielding Body 15a Fitting Portion 16 Hole 19 Core Wire 20 Insulation Coating 21 Electric Wire Material 22 Folded Portion 23 Coating Material 26 Mate Connector 27 Mate Connector Terminal 28 External GND Member 30 Terminal Body 31 Terminal End 33 First Sealing Member 34 Second Sealing Member 37 Crimping Portion 38 Shell Body Portion 39 Leaf Spring Portion 39a Protrusion 40 Engaging Portion 41 Positioning Portion 43 Protruding Portion 46 Underlay ring 46a Underlay main body 46b Large-diameter part 46c Inclined part 46d Inner extension part 50 Cap body 51 Outer peripheral wall 52 Gap 53 Hole 54 Protrusion 55 Notch

Claims

1. A shielded wire body having a core wire, an insulating coating covering the outer periphery of the core wire, a shielding material covering the outer periphery of the insulating coating, and a covering material covering the outer periphery of the shielding material, an electrical terminal fixed to the core wire, a backing ring that covers the outer periphery of the covering material at the tip of the covering material and whose outer periphery is covered by the folded-back portion of the shielding material, a shield connected to the folded-back portion and electrically connectable to an external GND member, comprising: The shield is formed in a cylindrical shape by a metal plate material, and has a crimping portion that is crimped so as to sandwich the folded-back portion with the backing ring, and a shell main body portion in which a leaf spring portion capable of pressing contact with the external GND member is formed. The backing ring has a backing main body portion provided at a position corresponding to the crimping portion, and a large-diameter portion provided at a position corresponding to the boundary between the crimping portion and the shell main body portion and having a diameter larger than that of the backing main body portion. Shield connector.

2. The backing ring has an inclined portion whose diameter gradually decreases from the large-diameter portion toward the backing main body portion. The shield connector according to claim 1.

3. The backing main body portion is set to a length that protrudes outside more than the ends of the folded-back portion and the crimping portion. The shield connector according to claim 1.

4. The shield is attached by being inserted into a connector housing. The shell main body portion has an engaging portion that can engage with the connector housing so as not to come out of the connector housing. The shield connector according to claim 1.

5. The shield is attached by being inserted into a connector housing. The shell main body has a positioning portion that can engage with the connector housing in the insertion direction into the connector housing and positions the shielding body. The shield connector according to claim 1.

6. The shielding body has a fitting portion in which ends of the metal plate members are connected to each other at a part in the circumferential direction. The leaf spring portion is provided at a position where the fitting portion does not overlap in the circumferential direction. The shield connector according to claim 1.

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