Connector and connector with cable

Abstract

The purpose of the present invention is to suppress variations in the characteristic impedance of a connector by a shielding structure in which an array part is provided to a plug, and to suppress a reduction in the shielding effect of the shielding structure, thereby facilitating the manufacturing of the shielding structure. A plug main body (2) of a plug attached to a twisted pair cable with a shield layer includes a shield structure (14) surrounding terminals and insulated wires disposed in the plug main body (2), and the shield structure (14) is formed from: an upper shield member (15) having an upper terminal shield portion (16), an array portion, and a shield layer contact piece (26); a lower shield member (29) having a lower terminal shield portion (35), a lower wire shield portion (36), and a shield layer connection cylinder portion sheet (40); and a shield reinforcement member (45) having an upper wire shield portion (46), a contact piece (51), a contact protrusion portion, and a curved plate portion (53).

Description

Technical Field

[0001] The present invention relates to a connector mounted on a cable including a plurality of insulated electric wires and a shielding layer, and a connector with a cable mounted thereon. Background Art

[0002] For example, shielded cables including insulated wires and shielding layers covering the insulated wires, such as twisted pair cables with shielding layers, are used to transmit high-frequency signals between electrical and electronic equipment. The shielding layer in the shielded cable has the effect of suppressing noise (electromagnetic waves) from invading the electrical and electronic equipment from the outside and suppressing noise from being radiated from the electrical and electronic equipment to the outside, that is, it has a shielding effect.

[0003] In addition, the connector mounted on the shielded cable mostly includes a terminal to which the insulated wire of the cable is connected, an insulating member covering the outer peripheral side of the terminal, and a shielding structure covering the outer peripheral side of the insulating member. The shielding structure is formed of a conductive material and is electrically connected to the shielding layer of the shielded cable. The shielding structure exerts a shielding effect in the connector.

[0004] Japanese Patent Application Laid-Open No. 2009-37836 (Patent Document 1) describes a connector that is mounted on a shielded cable including a plurality of insulated wires and a shield layer covering the insulated wires. The connector includes an outer conductor housing formed by combining an outer conductor box and an outer conductor cover. Prior art literature Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2009-37826 Summary of the invention

[0006] For example, as disclosed in Japanese Patent Application Laid-Open No. 2009-37826 Figure 5As shown, in an existing connector installed on a shielded cable, the end side portion of the shielded cable installed by the connector is subjected to terminal processing, so that the shielding layer is exposed from the end of the outer skin, and each insulated wire is exposed from the end of the shielding layer. In addition, each terminal is connected to the front end of the insulated wire exposed from the shielding layer. In addition, the insulating member is formed into a prism or a cylinder and has a hole or a groove for installing a plurality of terminals respectively, and each terminal is installed in the hole or the groove of the insulating member. In addition, when the elongation direction of the end side portion of the shielded cable installed on the connector is the front-to-back direction, the shielding structure is formed as a cylinder with an axis extending in the front-to-back direction. The shielding structure is configured to cover the end side portion of the shielding layer exposed from the outer skin, the end side portion of each insulated wire exposed from the shielding layer, each terminal, and the surrounding of the insulating member. In addition, the front end side portion of the shielding structure is fixed to the insulating member. In addition, the base end side portion of the shielding structure is fixed to the portion of the shielding layer exposed from the outer skin and contacts the shielding layer, and is electrically connected to the shielding layer.

[0007] Furthermore, in order to facilitate the manufacture of the shielding structure, the shielding structure is divided into a lower shielding member that covers the end side portion of the shielding layer, the end side portions of each insulated wire, each terminal, and the insulating member from below, and an upper shielding member that covers the end side portion of the shielding layer, the end side portions of each insulated wire, each terminal, and the insulating member from above, and is formed into a cylindrical shape by combining the lower shielding member and the upper shielding member. By dividing the shielding structure into a lower shielding member and an upper shielding member, the lower shielding member and the upper shielding member can be formed separately by, for example, simple bending processing, and the shielding structure can be easily manufactured. For example, in the above-mentioned bulletin Figure 1 It is described in the literature that an outer conductor case is formed by combining an outer conductor box and an outer conductor cover.

[0008] However, in the above-mentioned conventional connector, the end side portion of each insulated wire exposed from the shield layer may bend inside the shield layer structure, and there is a problem that the characteristic impedance of the connector varies due to the bending of the insulated wire.

[0009] Specifically, in the above-mentioned conventional connector, the end of the shielding layer leaking out of the outer skin is arranged on the base end side in the shielding structure, and the insulating member is arranged on the front end side in the shielding structure. In addition, in the shielding structure, the end side portion of each insulated wire exposed from the shielding layer extends between the end of the shielding layer and the insulating member. In the case where the length of the end side portion of each insulated wire exposed from the shielding layer is excessively longer than the distance between the end of the shielding layer arranged on the base end side in the shielding structure and the insulating member arranged on the front end side in the shielding structure, the end side portion of each insulated wire is bent in the shielding structure. When the shielded cable is subjected to terminal processing, the length of the end side portion of each insulated wire is adjusted assuming the distance between the end of the shielding layer and the insulating member. In the case where the length of the end side portion of each insulated wire is shorter than the distance between the end of the shielding layer and the insulating member, the terminal connected to the end of each insulated wire does not reach the insulating member, and thus each terminal cannot be mounted on the insulating member. For this reason, the length of the end side portion of each insulated wire is made longer than the distance between the end of the shielding layer and the insulating member. However, the length of the end side portion of each insulated wire may be longer than necessary. In this case, the end side portion of each insulated wire may bend in the shield structure. When the end side portion of each insulated wire is bent in the shield structure, the spacing between the plurality of insulated wires or the spacing between each insulated wire and the shield structure may deviate in the shield structure. Due to such deviation, the characteristic impedance of the connector changes, making it difficult to achieve impedance matching between the connector and the shielded cable.

[0010] To this end, the inventor of the present invention proposes that in a shielding structure of a connector, an arrangement portion is formed in a portion of an upper shielding member to bundle and arrange the end side portions of the insulated wires exposed from the shielding layer. Specifically, the arrangement portion is formed by bending a portion of the upper shielding member into a cylindrical shape and plastically deforming it in a manner that covers the periphery of the end side portions of the plurality of insulated wires in a concentrated manner. Through the arrangement portion, the plurality of insulated wires are aligned in the shielding structure, and the plurality of insulated wires are extremely close to each other. As a result, the deflection of the insulated wires is suppressed in the shielding structure, and the change in the characteristic impedance of the connector caused by the deflection of the insulated wires is suppressed.

[0011] However, it has been found that when the connector is used for transmission of high-frequency signals having a frequency exceeding 400 MHz, for example, the shielding effect of the shield structure may be reduced due to the formation of the alignment portion on the upper shield member.

[0012] The reason why the shielding effect of the shielding structure is reduced is believed to be that a part of the upper shielding member is bent to form an arrangement portion, thereby increasing the non-contact portion between the upper shielding member and the lower shielding member. That is, in order to improve the shielding effect of the shielding structure, it is ideal that the end side portion of each insulated wire exposed from each terminal and the shielding layer is completely surrounded without gaps by the shielding structure. Even in the case where the shielding structure is divided into a lower shielding member and an upper shielding member, as long as the non-contact portion between the lower shielding member and the upper shielding member can be completely eliminated when the lower shielding member is combined with the upper shielding member, the terminals and the insulated wires can be completely surrounded by the shielding structure. However, this is difficult in practice. For this reason, the non-contact portion between the lower shielding member and the upper shielding member is reduced as much as possible, and the integrity of the surrounding of each terminal and each insulated wire by the shielding structure is improved as much as possible, so as to suppress the reduction of the shielding effect of the shielding structure. However, since a part of the upper shielding member is bent to form an arrangement portion, the portion of the upper shielding member forming the arrangement portion is separated from the lower shielding member, and the non-contact portion between the upper shielding member and the lower shielding member is increased. As a result, the integrity of the shield structure surrounding the terminals and the insulated wires is reduced, and the shielding effect of the shield structure is reduced.

[0013] If the reason why the shielding effect of the shielding structure is reduced due to the formation of an arrangement portion on the upper shielding member is as follows, it can be considered that even if a portion of the upper shielding member is bent to form the arrangement portion, the integrity of the enclosure of each terminal and each insulated wire by the shielding structure can be improved by reducing the non-contact portion between the upper shielding member and the lower shielding member, thereby suppressing the reduction in the shielding effect of the shielding structure.

[0014] However, under the premise of facilitating the manufacture of the shielding structure without complicating the shapes of the upper shielding member and the lower shielding member, it is difficult to reduce the non-contact portion between the upper shielding member and the lower shielding member while bending a portion of the upper shielding member to form an arrangement portion, and it is not easy to improve the integrity of the shielding structure surrounding each terminal and each insulated wire.

[0015] The present invention is made in view of the above-mentioned problems, and the technical problem of the present invention is to provide a connector and a connector with a cable, which can suppress the change of the characteristic impedance of the connector by setting an arrangement part on the shielding structure, while still suppressing the reduction of the shielding effect of the shielding structure and facilitating the manufacture of the shielding structure.

[0016] In order to solve the above-mentioned technical problems, the connector of the present invention is a connector installed on a cable including a plurality of insulated wires and a shielding layer covering the plurality of insulated wires, and is characterized in that, when the extension direction of the end side portion of the cable installed on the connector is taken as the front-to-back direction, the direction perpendicular to the front-to-back direction is taken as the up-down direction, and the direction perpendicular to the front-to-back direction and the up-down direction is taken as the left-to-right direction, the connector includes: a plurality of terminals, the plurality of terminals are respectively installed on the front end portions of the plurality of insulated wires that are exposed from the shielding layer and extend forward by terminal processing; an insulating member covering the outer peripheral side of the plurality of terminals; and a shielding structure formed by a conductive material, the shielding structure being composed of at least a first shielding member, a second shielding member, and a third shielding member. The invention comprises three shielding components, wherein the first shielding component comprises: a terminal shielding portion covering the insulating component from above; an arranging portion bundling and arranging the plurality of insulated wires exposed from the shielding layer; and a shielding layer connecting portion connected to the shielding layer; the second shielding component comprises: a terminal shielding portion covering the insulating component from below; a wire shielding portion covering the arranging portion from below; and a shielding layer connecting portion connected to the shielding layer; the third shielding component comprises: a wire shielding portion covering the arranging portion from above; and a shielding layer connecting portion connected to the shielding layer; the wire shielding portion of the third shielding component comprises: a first inter-component contact portion in contact with the arranging portion; and a second inter-component contact portion in contact with the wire shielding portion of the second shielding component.

[0017] In the connector of the present invention described above, the arranging portion of the first shielding member can suppress the bending of the plurality of insulated wires extending in the connector. Thus, the change in the characteristic impedance of the connector caused by the bending of the insulated wires extending in the connector can be suppressed. In addition, the terminals can be surrounded by the terminal shielding portion of the first shielding member and the terminal shielding portion of the second shielding member, the arranging portion and the insulated wires bundled by the arranging portion can be surrounded by the wire shielding portion of the second shielding member and the wire shielding portion of the third shielding member, the first shielding member, the second shielding member and the third shielding member can be electrically connected to the shielding layer of the cable respectively by the shielding layer connecting portions of the first shielding member, the wire shielding portion of the third shielding member can be brought into contact with the arranging portion of the first shielding member by the first member-to-member contact portion, and the wire shielding portion of the third shielding member can be brought into contact with the wire shielding portion of the second shielding member by the second member-to-member contact portion. In this way, by forming the first shielding member, the second shielding member and the third shielding member of the shielding structure, the terminals and the insulated wires arranged in the connector can be covered throughout the entire circumference, and the contact portions between the first shielding member, the second shielding member and the third shielding member can be increased by the first member-to-member contact portion and the second member-to-member contact portion. In general, the integrity of the shielding member structure surrounding the terminals and the insulated wires can be improved. Therefore, while suppressing the change of the characteristic impedance of the connector by providing an arrangement portion in a part of the shielding structure, the reduction of the shielding effect of the shielding structure can still be suppressed. In addition, the first shielding member, the second shielding member and the third shielding member can be easily manufactured by simple bending processing, etc., and the shielding structure can be easily manufactured by combining the first shielding member, the second shielding member and the third shielding member.

[0018] In the connector of the present invention, the first inter-member contact portion may be a contact piece that protrudes downward from the wire shielding portion of the third shielding member and whose lower end portion contacts the arrangement portion. In addition, in the connector of the present invention, the wire shielding portion of the second shielding member may have a lower wall, a right wall, and a left wall, the wire shielding portion of the third shielding member may have an upper wall, a right wall, and a left wall, the wire shielding portion of the third shielding member may enter between the right wall and the left wall of the wire shielding portion of the second shielding member, the right wall of the wire shielding portion of the third shielding member and the left wall of the wire shielding portion of the third shielding member are respectively the second inter-member contact portion, the right wall of the wire shielding portion of the third shielding member contacts the right wall of the wire shielding portion of the second shielding member, and the left wall of the wire shielding portion of the third shielding member contacts the left wall of the wire shielding portion of the second shielding member. In addition, in this case, a convex portion that contacts the left surface of the right wall of the wire shielding portion of the second shielding member may be provided on the right surface of the right wall of the wire shielding portion of the third shielding member, and a convex portion that contacts the right surface of the left wall of the wire shielding portion of the second shielding member may be provided on the left surface of the left wall of the wire shielding portion of the third shielding member. In addition, in the connector of the present invention, when the shielding structure is viewed from the right or left, the wire shielding portion of the third shielding member does not protrude upward from the wire shielding portion of the second shielding member. In addition, in the connector of the present invention, the shielding layer connecting portion of the first shielding member may be formed in a plate shape and contact the upper portion of the shielding layer, the shielding layer connecting portion of the second shielding member may be a cylindrical sheet and crimped to the shielding layer and the shielding layer connecting portion of the first shielding member by riveting, and the shielding layer connecting portion of the third shielding member may be formed in a curved plate shape having a C-shaped cross-sectional shape, contact the shielding layer connecting portion of the second shielding member, and be installed on the shielding layer connecting portion of the second shielding member in a manner that the shielding layer connecting portion of the second shielding member is enclosed. In addition, in the connector of the present invention described above, the arrangement portion may include a bundling piece, which is formed in a plate shape and deformed into a cylindrical shape in a manner to centrally surround the multiple insulated wires exposed from the shielding layer, thereby bundling and arranging the multiple insulated wires exposed from the shielding layer.

[0019] Furthermore, a connector with a cable of the present invention includes a cable including a plurality of insulated electric wires and a shield layer covering the plurality of insulated electric wires, and the connector of the present invention described above.

[0020] According to the present invention, by providing the array portion in the shield structure of the plug, the characteristic impedance of the connector can be suppressed from changing, and the shielding effect of the shield structure can be suppressed from decreasing, and the shield structure can be manufactured more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 (A) is a perspective view showing a plug as an embodiment of the connector of the present invention, Figure 1 (B) is an explanatory diagram showing the state of the plug as viewed from above. Figure 2 It is an exploded view of the plug according to the embodiment of the present invention. Figure 3 It is an exploded view of a plug body according to an embodiment of the present invention. Figure 4 (A) is an external view showing a state where a plug body according to an embodiment of the present invention is viewed from the right. Figure 4 (B) is along Figure 1 2 is a cross-sectional view of the plug body according to the embodiment of the present invention taken along the cutting line AA in (B). Figure 5 (A) indicates along Figure 1 A cross-sectional view of the terminal, the insulating member, the upper shielding member, etc. according to the embodiment of the present invention taken along the cutting line AA in (B), Figure 5 (B) indicates along Figure 5 2 is a cross-sectional view of the terminal, the insulating member, the upper shield member, etc. according to the embodiment of the present invention taken along the cutting line DD in (A). Figure 6 It is an exploded view showing a terminal, an insulating member, a reinforcing metal member, etc. according to an embodiment of the present invention. Figure 7 It is a perspective view showing an upper shield member according to the embodiment of the present invention. Figure 8 It is a perspective view showing a terminal, an insulating member, an upper shield member, etc. according to an embodiment of the present invention. Fig. 9 This is an external view showing a state where a terminal, an insulating member, an upper shield member, etc. according to an embodiment of the present invention are viewed from below. Fig.10 It is a perspective view showing a lower shield member according to the embodiment of the present invention. Fig.11 It is a perspective view showing an upper shield member, a lower shield member, etc. according to an embodiment of the present invention. Fig.12 (A) is a perspective view showing a shield reinforcement member according to an embodiment of the present invention, Fig.12 (B) is an appearance diagram showing the shield reinforcement member as viewed from above. Fig.12 (C) is a cross-sectional view of the shield reinforcement member, Fig.12 (D) is an external view showing the shield reinforcement member as viewed from below. Fig.13 It is a perspective view showing a plug body according to an embodiment of the present invention. Fig.14 It is a cross-sectional view showing a part of a plug body according to an embodiment of the present invention. Fig.15 It means along Figure 4 A cross-sectional view of the plug body taken along the cutting line BB in (A). Fig.16 It means along Figure 4 A cross-sectional view of the plug body taken along the cutting line CC in (A). Fig.17 (A) is a three-dimensional diagram of the socket. Fig.17 (B) is a diagram showing the socket as viewed from above. Fig.17 (C) is a cross-sectional view of the socket. Fig.18 It is an explanatory diagram showing a state where a plug according to an embodiment of the present invention is fitted into a socket. Fig.19 It is an explanatory diagram showing how to use the plug according to the embodiment of the present invention. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the embodiment, when describing the directions of front (Fd), back (Bd), up (Ud), down (Dd), left (Ld), and right (Rd), the directions are as follows: Figures 1 to 16 , Fig.18 , Fig.19 The arrow depicted in the lower right.

[0023] (plug) Figure 1 (A) shows a state where a plug 1 as an embodiment of a connector according to the present invention is viewed from the upper right front. Figure 1 (B) shows the state where the plug 1 is viewed from above. Figure 1 As shown in (A), the plug 1 is installed at the end side portion of the cable 91. In the following description of the plug 1, for the sake of convenience, the extension direction of the end side portion of the cable 91 is the front-to-back direction, the direction perpendicular to the front-to-back direction is the up-down direction, and the direction perpendicular to the front-to-back direction and the up-down direction is the left-to-right direction.

[0024] Figure 2 FIG. 1 shows the state in which the plug 1 is disassembled. Figure 2 As shown, the plug 1 includes a plug body 2 and a housing 61 .

[0025] (shell) The housing 61 is formed of an insulating material such as resin and is formed into a substantially cylindrical shape extending in the front-to-back direction. The front portion of the housing 61 is connected to a socket 71 (see FIG. 1 ) which is a counterpart connector to be connected to the plug 1. Fig.17 The housing 61 has a fitting portion 62 for fitting with the plug 1, and the rear portion of the housing 61 is a gripping portion 63 for the user to grip the plug 1 with his fingers. In addition, a plug body storage portion 64 for storing the plug body 2 is formed on the inner side of the housing 61. In addition, fixing pieces 65 are respectively provided on the right and left portions of the peripheral wall at the rear of the housing 61, and the fixing pieces 65 are used to fix the plug body 2 stored in the plug body storage portion 64 to the housing 61. In addition, a locking piece 66 for preventing the plug 1 from being disengaged from the socket 71 is provided on the upper portion of the housing 61.

[0026] (Plug body) Figure 3 FIG. 2 shows a state where the plug body 2 is disassembled. Figure 3 As shown, the plug body 2 includes two terminals 3, an insulating member 7, a reinforcing metal member 13, an upper shield member 15, a lower shield member 29, and a shield reinforcement member 45. Figure 2 As shown, the shield structure 14 is formed by an upper shield member 15 , a lower shield member 29 , and a shield reinforcement member 45 .

[0027] In addition, the upper shield member 15 is a specific example of a “first shield member”, the lower shield member 29 is a specific example of a “second shield member”, and the shield reinforcement member 45 is a specific example of a “third shield member”.

[0028] Figure 4 (A) shows a state where the plug body 2 is viewed from the right. Figure 4 (B) shows the Figure 1 (B) below) observe along Figure 1 The state of the cross section of the plug body 2 obtained by cutting along the cutting line AA in (B). Figure 5 (A) shows Figure 4 The terminals 3 , the insulating member 7 , and the upper shield member 15 in the plug body 2 in (B). Figure 5 (B) shows the view from above along Figure 5 The state of the cross section of the terminal 3, the insulating member 7 and the upper shielding member 15 obtained by cutting along the cutting line DD in (A). Figure 4 (A) Figure 4 (B) Figure 5 (A) and Figure 5 (B) is used for the following description of each part of the plug body 2.

[0029] (Terminals, insulating components, reinforcing metal parts) Figure 6The terminal 3, the insulating member 7, and the reinforcing metal member 13 are shown together with the end side portion of the cable 91. Figure 6 In the embodiment, the cable 91 is a twisted pair cable with a shield layer. The cable 91 includes two insulated wires 92 twisted together, a shield layer 95 formed of a conductive material and covering the outer circumference of the two insulated wires 92, and a sheath 96 formed of an insulating material and covering the outer circumference of the shield layer 95. Figure 6 In order to observe the shielding layer 95 inside the outer skin 96, a part of the outer skin 96 is broken. Figure 5 As shown in FIG. 2 (B), each insulated wire 92 is formed by covering the outer peripheral side of a conductor 93 with an insulator 94 .

[0030] In addition, in order to attach the plug 1 to the cable 91, a terminal treatment is applied to the end side portion of the cable 91. Figure 6 As shown, the front end side portion of the outer skin 96 is cut off, and each insulated wire 92 and the shielding layer 95 are exposed from the outer skin 96 and extend forward. In addition, the front end side portion of the shielding layer 95 exposed from the outer skin 96 is cut off, and each insulated wire 92 is exposed from the shielding layer 95 and extends forward. In addition, among the portions of the shielding layer 95 exposed from the outer skin 96, only the front side portion is cut off, and the rear side portion is retained. Among the portions of the shielding layer 95 exposed from the outer skin 96, the portion that is not cut off and is retained is called the "exposed end portion" of the shielding layer 95, and is marked with the symbol 95A. In addition, as shown in FIG. Figure 5 As shown in FIG. 2 (B), in each insulated wire 92 exposed from the shield layer 95 , the front end side portion of the insulator 94 is cut away, and the conductor 93 is exposed from the insulator 94 .

[0031] like Figure 6 As shown in FIG. 1 , the reinforcing metal member 13 is a curved plate formed of a conductive material. The reinforcing metal member 13 is attached to the outer peripheral side of the front end side portion of the outer skin 96. Figure 5 As shown in (B), the exposed end portion 95A of the shielding layer 95 is folded back rearward in a manner that covers the front end side portion of the outer skin 96 on which the reinforcing metal member 13 is installed. By installing the reinforcing metal member 13 to the front end side portion of the outer skin 96, the non-contact portion formed between the shielding layer 95 and the shielding layer connecting tube piece 40 of the lower shielding member 29 described later can be reduced, and the reliability of the connection between the two can be improved.

[0032] The two terminals 3 are mounted on the front end portions of the two insulated wires 92. Each terminal 3 is formed of a conductive material such as metal. Figure 5 (A) and Figure 6As shown, each terminal 3 has a contact portion 4, a conductor connecting portion 5, and an insulator fixing portion 6. The contact portion 4 contacts the terminal 72 of the socket 71 when the plug 1 is connected to the socket 71. The conductor connecting portion 5 is crimped to the conductor 93 of the insulated wire 92 by riveting, and the terminal 3 is connected to the conductor 93. The insulator fixing portion 6 is crimped to the insulator 94 of the insulated wire 92 by riveting, and the terminal 3 is combined and fixed with the insulated wire 92.

[0033] The insulating member 7 is formed of an insulating material such as resin into a substantially rectangular parallelepiped shape. Figure 5 As shown in (A) of FIG. 1 , a terminal receiving hole 8 opening toward the rear is formed in the insulating member 7. Figure 5 As shown in (B), the insulating member 7 has two terminal receiving holes 8, and the two terminal receiving holes 8 are arranged on the left and right. The two terminals 3 are respectively received in the two terminal receiving holes 8. Thus, the outer peripheral side of each terminal 3 is covered by the insulating member 7. In addition, two mating terminal insertion holes 9 are formed on the front surface of the insulating member 7, and the terminals 72 of the socket 71 are inserted into the mating terminal insertion holes 9 when the plug 1 is connected to the socket 71. The two mating terminal insertion holes 9 are connected to the two terminal receiving holes 8, respectively. In addition, as shown Figure 6 As shown, the first locking recess 11 for locking the upper wire shielding portion 46 of the upper shielding member 15 and the second locking recess 12 for locking the lower wire shielding portion 36 of the lower shielding member 29 are formed on the right surface of the insulating member 7. The first locking recess 11 and the second locking recess 12 are also formed on the left surface of the insulating member 7.

[0034] (Upper shield member) Figure 7 An upper shield member 15 is shown. Figure 8 A state in which the upper shield member 15 is mounted on the end side portion of the cable 91 to which the terminal 3 and the insulating member 7 are mounted is shown. Fig. 9 Shown from below Figure 8 The states of the insulating member 7 , the end side portion of the cable 91 , and the upper shield member 15 are shown.

[0035] The upper shield member 15 is formed of a conductive material such as metal. Figure 7 As shown, the upper shield member 15 includes an upper terminal shielding portion 16, an arranging portion 22, and a shielding layer contact piece 26. The upper terminal shielding portion 16 is disposed at the front of the upper shield member 15. The arranging portion 22 is disposed at the rear of the upper terminal shielding portion 16 and is connected to the upper terminal shielding portion 16. The shielding layer contact piece 26 is disposed at the rear of the arranging portion 22 and is connected to the arranging portion 22.

[0036] The upper terminal shield 16 is a conductor plate that surrounds the outer periphery of the two terminals 3 housed in the insulating member 7 by covering the outer periphery of the insulating member 7 together with the lower terminal shield 35 of the lower shield member 29 described later. The upper terminal shield 16 includes an upper wall 17, a right wall 18, and a left wall 19 each formed in a flat plate shape, and has a U-shaped cross-sectional shape. Figure 8 As shown, the upper terminal shielding portion 16 covers the insulating member 7 from above. Specifically, the upper wall 17 covers the upper surface of the insulating member 7, the right wall 18 covers the upper part of the right surface of the insulating member 7, and the left wall 19 covers the upper part of the left surface of the insulating member 7. In addition, a locking protrusion 21 for locking the upper terminal shielding portion 16 to the insulating member 7 is formed on the right wall 18 and the left wall 19 of the upper terminal shielding portion 16, respectively. Both locking protrusions 21 protrude inward. That is, the locking protrusion 21 on the right side protrudes to the left from the left surface of the right wall 18, and the locking protrusion 21 on the left side protrudes to the right from the right surface of the left wall 19. The locking protrusion 21 on the right side is locked to the first locking recess 11 formed on the right surface of the insulating member 7, and the locking protrusion 21 on the left side is locked to the first locking recess formed on the left surface of the insulating member 7. In addition, extensions 20 are formed at the right rear portion and the left rear portion of the upper wall 17 of the upper terminal shielding portion 16. The right extension 20 extends rightward from the upper wall 17, and the left extension 20 extends leftward from the upper wall 17. Fig. 9 As shown, in the left-right direction, the position of the right end surface of the right extension 20 is the same as the position of the right surface of the right wall 18, and the position of the left end surface of the left extension 20 is the same as the position of the left surface of the left wall 19. In addition, the upper terminal shielding portion 16 is a specific example of the "terminal shielding portion of the first shielding member".

[0037] The arranging portion 22 has a function of bundling and arranging the portions of the two insulated wires 92 of the cable 91 that are exposed from the shield layer 95 and extend in the plug 1. Figure 7 As shown, the arrangement portion 22 includes: a binding piece 23 formed in a plate shape; a connecting portion 24 connecting the binding piece 23 and the upper terminal shielding portion 16; and a connecting portion 25 connecting the binding piece 23 and the shielding layer contact piece 26. The uppermost portion of the binding piece 23 is located lower than the upper surface of the upper wall 17 of the upper terminal shielding portion 16 and the upper surface of the shielding layer contact piece 26. Therefore, the connecting portion 24 extends rearward while being inclined downward, and the connecting portion 25 extends rearward while being inclined upward.

[0038] like Figure 8 as well as Fig. 9As shown, the bundling sheet 23 is plastically deformed so as to surround the two insulated wires 92, thereby bundling and arranging the two insulated wires 92. When the bundling sheet 23 is deformed in this way, the bundling sheet 23 is in the shape of a cylinder elongated in the front-back direction. The bundling sheet 23 is a member similar to a cylinder, and can be bent into a cylinder using a crimping tool, for example.

[0039] like Figure 5 As shown in (B), the two insulated wires 92 exposed from the shielding layer 95 are bundled by the bundling sheet 23 to be straightened, and they are stretched in a straight line, arranged in parallel and very close to each other, and maintained in this state. In addition, the bundling sheet 23 may be used to bundle the two insulated wires 92 in such a way that the insulators 94 of the two insulated wires 92 are in contact with each other. By bundling and arranging the two insulated wires 92 in this way, the bending of each insulated wire 92 can be suppressed, and the change of the characteristic impedance of the plug 1 caused by the bending of each insulated wire 92 can be suppressed. As a result, it becomes easy to achieve impedance matching between the plug 1 and the cable 91.

[0040] The shielding layer contact piece 26 has the function of electrically connecting the upper shielding member 15 to the shielding layer 95 of the cable 91. Figure 7 As shown, the shielding layer contact piece 26 is formed in a plate shape. Figure 8 As shown, the shielding layer contact piece 26 contacts the upper part of the outer peripheral surface of the exposed end portion 95A formed by folding back the shielding layer 95 of the cable 91. Thus, the shielding layer contact piece 26 is electrically connected to the shielding layer 95. The shielding layer contact piece 26 is bent in a manner matching the curvature of the outer peripheral surface of the exposed end portion 95A. In addition, the shielding layer contact piece 26 is a specific example of the "shielding layer connecting portion of the first shielding member".

[0041] (Lower shield member) Fig.10 The lower shield member 29 is shown as viewed from the upper right front. Fig.11 The state where the lower shield member 29 is attached to the end side portion of the cable 91 to which the terminal 3 , the insulating member 7 , and the upper shield member 15 are attached is shown as viewed from the upper right rear side.

[0042] The lower shield member 29 is formed of a conductive material such as metal. Fig.10As shown, the lower shield member 29 includes a lower terminal shield portion 35, a lower wire shield portion 36, and a shield layer connecting barrel piece 40. The lower shield member 29 includes a lower wall 30, a right wall 31, and a left wall 32, each of which is formed in a flat plate shape, and has a U-shaped cross-sectional shape. The lower terminal shield portion 35 is formed by the front portion of the lower wall 30, the front portion of the right wall 31, and the front portion of the left wall 32. The lower wire shield portion 36 is formed by the rear portion of the lower wall 30, the rear portion of the right wall 31, and the rear portion of the left wall 32. The shield layer connecting barrel piece 40 is arranged behind the lower wall 30, the right wall 31, and the left wall 32, and the lower wall 30, the right wall 31, and the left wall 32 are connected to each other via a connecting portion 41. In addition, the height of the front portion of the right wall 31 is lower than the height of the rear portion of the right wall 31, and similarly, the height of the front portion of the left wall 32 is lower than the height of the rear portion of the left wall 32.

[0043] The lower terminal shield 35 is a conductive plate that surrounds the outer peripheries of the two terminals 3 housed in the insulating member 7 by covering the outer periphery of the insulating member 7 together with the upper terminal shield 16 of the upper shield member 15. Fig.11 As shown, the lower terminal shielding portion 35 is arranged to be opposite to the upper terminal shielding portion 16 below the upper terminal shielding portion 16. In addition, the lower terminal shielding portion 35 covers the insulating member 7 from below. Specifically, the front portion of the lower wall 30 forming a part of the lower terminal shielding portion 35 covers the lower surface of the insulating member 7. The front portion of the right wall 31 forming a part of the lower terminal shielding portion 35 covers the lower portion of the right surface of the insulating member 7. The front portion of the left wall 32 forming a part of the lower terminal shielding portion 35 covers the lower portion of the left surface of the insulating member 7. In addition, the upper end face of the front portion of the right wall 31 of the lower shielding member 29 is extremely close to the lower end face of the right wall 18 of the upper terminal shielding portion 16. Similarly, the upper end face of the front portion of the left wall 32 of the lower shielding member 29 is extremely close to the lower end face of the left wall 19 of the upper terminal shielding portion 16. In addition, at the rear portion of the lower terminal shielding portion 35, the right wall 31 and the left wall 32 become higher respectively. The upper end surface of the right wall 31 which becomes higher at the rear of the lower terminal shielding portion 35 is extremely close to the lower surface of the extension portion 20 on the right side of the upper terminal shielding portion 16. Similarly, the upper end surface of the left wall 32 which becomes higher at the rear of the lower terminal shielding portion 35 is extremely close to the lower surface of the extension portion 20 on the left side of the upper terminal shielding portion 16. In addition, the lower terminal shielding portion 35 is a specific example of the "terminal shielding portion of the second shielding member".

[0044] The lower wire shield 36 is a conductor plate that surrounds the outer periphery of the arrangement portion 22 of the upper shield member 15 together with the upper wire shield 46 of the shield reinforcement member 45 described later. The lower wire shield 36 covers the arrangement portion 22 from below. Fig.11As shown, the arrangement portion 22 is arranged in a space surrounded by the rear portion of the lower wall 30 forming a part of the lower wire shielding portion 36, the rear portion of the right wall 31 forming a part of the lower wire shielding portion 36, and the rear portion of the left wall 32 forming a part of the lower wire shielding portion 36. In addition, the lower wire shielding portion 36 is a specific example of the "wire shielding portion of the second shielding member".

[0045] In addition, locking protrusions 37 for locking the lower shield member 29 to the insulating member 7 are formed at the front of the right wall 31 and the front of the left wall 32 of the lower shield member 29, respectively. Both locking protrusions 37 protrude inward. That is, the right locking protrusion 37 protrudes to the left from the left surface of the front of the right wall 31, and the left locking protrusion 37 protrudes to the right from the right surface of the front of the left wall 32. The right locking protrusion 37 is locked to the second locking recess 12 formed on the right surface of the insulating member 7, and the left locking protrusion 37 is locked to the second locking recess formed on the left surface of the insulating member 7. In addition, two locking holes 38 for locking the shield reinforcement member 45 to the lower shield member 29 are formed at the rear of the right wall 31 of the lower shield member 29. In addition, two locking holes 38 for locking the shield reinforcement member 45 to the lower shield member 29 are also formed at the rear of the left wall 32 of the lower shield member 29. Furthermore, fixing portions 39 for fixing the plug body 2 to the housing 61 are formed at the upper portions of the rear ends of the right wall 31 and the left wall 32 of the lower shield member 29, respectively. The fixing portion 39 on the right side extends to the right than the right surface of the right wall 31, and the fixing portion 39 on the left side extends to the left than the left surface of the left wall 32. When the plug body 2 is inserted into the plug body storage portion 64 of the housing 61, each fixing portion 39 pushes the fixing piece 65 provided on the housing 61, climbs over the fixing piece 65, and is arranged in front of the fixing piece 65. Thereafter, even if the plug body 2 is pulled backward relative to the housing 61, the rear end surface of each fixing portion 39 contacts the front end surface of the fixing piece 65, thereby preventing the plug body 2 from moving backward relative to the housing 61. Thus, the plug body 2 is prevented from coming out of the housing 61.

[0046] The shield layer connecting tube piece 40 has the function of electrically connecting the lower shield member 29 to the shield layer 95 of the cable 91 and the function of maintaining the state in which the shield layer contact piece 26 of the upper shield member 15 is in contact with the shield layer 95 of the cable 91. Fig.10 As shown in FIG. 1 , the shield layer connecting tube sheet 40 is formed into a curved plate shape and has an open tube shape. Fig.11 As shown, the shield layer connecting tube piece 40 is crimped to the exposed end portion 95A of the shield layer 95 and the shield layer contact piece 26 of the upper shield member 15 by riveting. Figure 4 (B) and Fig.16As shown, the shielding layer connecting tube piece 40 is in substantially all contact with the outer peripheral surface of the exposed end portion 95A of the shielding layer 95 except for the portion where the shielding layer contact piece 26 is arranged. In addition, the shielding layer connecting tube piece 40 is in substantially all contact with the upper surface of the shielding layer contact piece 26. Thus, the shielding layer connecting tube piece 40 is electrically connected to the shielding layer 95 and the shielding layer contact piece 26. In addition, the shielding layer contact piece 26 is sandwiched and fixed between the exposed end portion 95A of the shielding layer 95 and the shielding layer connecting tube piece 40. Thus, the state in which the shielding layer contact piece 26 is in contact with the exposed end portion 95A of the shielding layer 95 is maintained. In addition, the shielding layer connecting tube piece 40 is a specific example of a "shielding layer connecting portion of the second shielding member".

[0047] (Shielding reinforcement member) Fig.12 (A) shows a state where the shield reinforcement member 45 is viewed from the upper right front. Fig.12 (B) shows a state where the shield reinforcement member 45 is viewed from above. Fig.12 (C) shows from the right ( Fig.12 (B) below) observe along Fig.12 The state of the cross section of the shield reinforcement member 45 obtained by cutting along the cutting line EE in (B). Fig.12 (D) shows a state where the shield reinforcement member 45 is viewed from below. Fig.13 The plug body 2 is shown as viewed from the upper right rear side.

[0048] The shield reinforcement member 45 is formed of a conductive material such as metal. Fig.12 As shown in (A) of FIG. 1 , the shield reinforcement member 45 includes an upper wire shield portion 46 and a bent plate portion 53. The upper wire shield portion 46 is arranged at the front of the shield reinforcement member 45. The bent plate portion 53 is arranged behind the upper wire shield portion 46 and is connected to the upper wire shield portion 46 via a connecting portion 56.

[0049] The upper wire shield 46 is a conductive plate that surrounds the outer circumference of the arrangement portion 22 of the upper shield member 15 together with the lower wire shield 36 of the lower shield member 29. The upper wire shield 46 includes an upper wall 47, a right wall 48, and a left wall 49, each of which is formed in a flat plate shape, and has a U-shaped cross-sectional shape. Fig.13 As shown, the upper wire shielding portion 46 is arranged at a position corresponding to the lower wire shielding portion 36, and covers the arrangement portion 22 from above. The upper wire shielding portion 46 blocks most of the upper opening of the lower wire shielding portion 36. The arrangement portion 22 is arranged in a space surrounded by the lower wire shielding portion 36 and the upper wire shielding portion 46, and the outer peripheral side of the arrangement portion 22 is surrounded by the lower wire shielding portion 36 and the upper wire shielding portion 46 over the entire circumference. In addition, the upper wire shielding portion 46 is a specific example of the "wire shielding portion of the third shielding member".

[0050] In addition, the upper wire shield 46 enters between the rear portion of the right wall 31 and the rear portion of the left wall 32 of the lower shield member 29. Therefore, the right wall 48 of the upper wire shield 46 is located on the left side of the right wall 31 of the lower shield member 29, and the left wall 49 of the upper wire shield 46 is located on the right side of the left wall 32 of the lower shield member 29. In addition, as Figure 4 (A) and Figure 4 As shown in (B), when the plug body 2 (shield structure 14) is viewed from the right or left, the upper wire shielding portion 46 does not protrude upward from the lower wire shielding portion 36. In addition, the position of the upper surface of the upper wall 47 of the upper wire shielding portion 46 is the same as the position of the upper surface of the upper wall 17 of the upper terminal shielding portion 16 in the vertical direction.

[0051] In addition, if Fig.12 (A) and Fig.12 As shown in (B), two locking protrusions 50 for locking the upper wire shield 46 to the lower shield member 29 are formed on the right wall 48 of the upper wire shield 46. In addition, two locking protrusions 50 for locking the upper wire shield 46 to the lower shield member 29 are also formed on the left wall 49 of the upper wire shield 46. These four locking protrusions 50 protrude outward. That is, the two right locking protrusions 50 protrude to the right from the right surface of the right wall 48, and the two left locking protrusions 50 protrude to the left from the left surface of the left wall 49. The two right locking protrusions 50 are respectively locked in the two locking holes 38 formed in the rear part of the right wall 31 of the lower shield member 29. The two left locking protrusions 50 are respectively locked in the two locking holes 38 formed in the rear part of the left wall 32 of the lower shield member 29.

[0052] In addition, the upper wire shield portion 46 has a contact piece 51 that contacts the arrangement portion 22. Fig.12 (B) and Fig.12 As shown in (C), the contact piece 51 protrudes downward from the left-right center of the upper wall 47 of the upper wire shielding portion 46. In addition, the lower end of the contact piece 51 contacts the arrangement portion 22. In this embodiment, Figure 4 A part of (B) after enlargement Fig.14As shown, the contact piece 51 extends forward while being inclined downward from the upper wall 47, and its lower end portion contacts the connecting portion 24 of the arrangement portion 22. Alternatively, the contact piece 51 may extend backward while being inclined downward from the upper wall 47, and the lower end portion of the contact piece 51 may contact the binding piece 23 of the arrangement portion 22. Furthermore, the contact piece 51 has a spring characteristic. When the upper wire shielding portion 46 is locked to the lower shielding member 29, the lower end portion of the contact piece 51 elastically contacts the upper surface of the arrangement portion 22. By making the contact piece 51 elastically contact the arrangement portion 22, the contact piece 51 can be reliably contacted with the arrangement portion 22. Furthermore, since the arrangement portion 22 is located at a position lower than the upper wall 47 of the upper wire shielding portion 46 and separated from the upper wall 47, the length of the contact piece 51 can be increased, and the degree of freedom in setting the spring force of the contact piece 51 can be increased. Furthermore, the contact piece 51 is a specific example of a "first member contact portion".

[0053] In addition, the right wall 48 of the upper wire shield portion 46 contacts the right wall 31 of the lower shield member 29, and the left wall 49 of the upper wire shield portion 46 contacts the left wall 32 of the lower shield member 29. Specifically, Fig.12 (A) and Fig.12 As shown in (B), two contact protrusions 52 are formed on the right surface (outer surface) of the right wall 48 of the upper wire shield 46. In addition, two contact protrusions 52 are formed on the left surface (outer surface) of the left wall 49 of the upper wire shield 46. Each contact protrusion 52 protrudes outward. That is, the two right contact protrusions 52 protrude rightward from the right surface of the right wall 48, and the two left contact protrusions 52 protrude leftward from the left surface of the left wall 49. Fig.15 Shown from the front ( Figure 4 (A) on the left) observe along Figure 4 The state of the cross section of the plug body 2 obtained by cutting along the cutting line BB in (A). Fig.15 As shown, when the upper wire shield 46 enters between the rear portion of the right wall 31 and the rear portion of the left wall 32 of the lower shield member 29 and is locked to the lower shield member 29, the two right contact protrusions 52 contact the left surface of the rear portion of the right wall 31 of the lower shield member 29, and the two left contact protrusions 52 contact the right surface of the rear portion of the left wall 32 of the lower shield member 29. In this way, the right wall 48 and the left wall 49 of the upper wire shield 46 contact the right wall 31 and the left wall 32 of the lower shield member 29, respectively.

[0054] In addition, the structure in which the right wall 48 of the upper wire shield 46 is in contact with the right wall 31 of the lower shield member 29 and the left wall 49 of the upper wire shield 46 is in contact with the left wall 32 of the lower shield member 29 is not limited thereto. For example, instead of forming the contact convex portion 52 on the right surface of the right wall 48 of the upper wire shield 46, a contact convex portion in contact with the right surface of the right wall 48 of the upper wire shield 46 may be formed on the left surface of the rear portion of the right wall 31 of the lower shield member 29. Similarly, instead of forming the contact convex portion 52 on the left surface of the left wall 49 of the upper wire shield 46, a contact convex portion in contact with the left surface of the left wall 49 of the upper wire shield 46 may be formed on the right surface of the rear portion of the left wall 32 of the lower shield member 29. In addition, the contact convex portion may not be formed on the right surface of the right wall 48 of the upper wire shield 46 and the left surface of the rear portion of the right wall 31 of the lower shield member 29, so that the right surface of the right wall 48 of the upper wire shield 46 and the left surface of the rear portion of the right wall 31 of the lower shield member 29 are in direct contact with each other. Similarly, the contact convex portion may not be formed on the left surface of the left wall 49 of the upper wire shield 46 and the right surface of the rear portion of the left wall 32 of the lower shield member 29, so that the left surface of the left wall 49 of the upper wire shield 46 and the right surface of the rear portion of the left wall 32 of the lower shield member 29 are in direct contact with each other. In addition, the right wall 48 and the left wall 49 of the upper wire shield 46 are specific examples of the "second member contact portion", and each contact convex portion 52 is a specific example of the "convex portion".

[0055] The bent plate portion 53 has a function of electrically connecting the shield reinforcement member 45 to the shield layer 95 of the cable 91. Fig.12 (A) and Fig.13 As shown in FIG. 1 , the bent plate portion 53 is formed into a bent plate having a C-shaped cross-sectional shape. The bent plate portion 53 is bent along the curved surface of the outer periphery of the riveted shield layer connecting tube portion 40. Fig.12 (C) and Fig.12 As shown in (D), two contact protrusions 54 are formed on the left surface (inner surface) of the lower end portion on the right side of the bent plate portion 53. In addition, two contact protrusions 54 are formed on the right surface (inner surface) of the lower end portion on the left side of the bent plate portion 53. Each contact protrusion 54 protrudes inward. That is, the two right contact protrusions 54 protrude to the left from the left surface of the lower end portion on the right side of the bent plate portion 53, and the two left contact protrusions 54 protrude to the right from the right surface of the lower end portion on the left side of the bent plate portion 53. In addition, cutouts 55 are respectively formed in the front portion of the lower end portion on the right side and the left side of the bent plate portion 53. As shown Fig.13 As shown, the bent plate portion 53 is attached to the shield layer connecting cylinder piece 40 from above so as to embrace the shield layer connecting cylinder piece 40 .

[0056] Fig.16Shown from the front ( Figure 4 (A) on the left) observe along Figure 4 The state of the cross section of the plug body 2 obtained by cutting along the cutting line CC in (A). Fig.16 In the embodiment, when the bent plate portion 53 is installed on the shielding layer connecting tube piece 40, the shielding layer connecting tube piece 40 is pressed between the lower right side and the lower left side of the bent plate portion 53. That is, the bent plate portion 53 is elastically deformed in such a manner that the lower right side and the lower left side are separated by the shielding layer connecting tube piece 40 entering between the lower right side and the lower left side of the bent plate portion 53. The cutouts 55 formed at the front of the lower end side portions on the right and left sides of the bent plate portion 53 respectively have the function of making it easy for the bent plate portion 53 to elastically deform in this way. In addition, in the state where the shielding layer connecting tube piece 40 enters between the lower right side and the lower left side of the bent plate portion 53, each contact protrusion 54 elastically contacts the outer peripheral surface of the shielding layer connecting tube piece 40. Thus, the bent plate portion 53 is electrically connected to the shielding layer 95 via the shielding layer connecting tube piece 40. Furthermore, the shield layer connecting tube piece 40 penetrates between the lower right and left sides of the bent plate portion 53, and the bent plate portion 53 is fixed to the shield layer connecting tube piece 40. The bent plate portion 53 facilitates the electrical connection of the shield reinforcement member 45 to the shield layer 95 and the fixing of the rear portion of the shield reinforcement member 45 to the plug body 2 (shielding layer connecting tube piece 40). In addition, the bent plate portion 53 is a specific example of the "shielding layer connecting portion of the third shield member".

[0057] (Shielding effect of shielding structure) like Fig.13As shown, in the plug body 2, each insulated wire 92 exposed from the shield layer 95 and extending in the plug 1 and the arrangement portion 22 are surrounded by the upper wire shield 46 and the lower wire shield 36. In addition, each terminal 3 is surrounded by the upper terminal shield 16 and the lower terminal shield 35. In addition, the contact piece 51 of the upper wire shield 46 protrudes downward from the upper wall 47 of the upper wire shield 46, and its lower end portion contacts the arrangement portion 22. In addition, the upper wire shield 46 enters between the right wall 31 and the left wall 32 of the lower shield member 29, and the two right contact protrusions 52 of the upper wire shield 46 protrude outward from the right wall 48 of the upper wire shield 46 and contact the right wall 31 of the lower shield member 29, and the two left contact protrusions 52 of the upper wire shield 46 protrude outward from the left wall 49 of the upper wire shield 46 and contact the left wall 32 of the lower shield member 29. In addition, the upper shield member 15, the lower shield member 29, and the shield reinforcement member 45 are all electrically connected to the shield layer 95 of the cable 91. With the plug body 2 having the above structure, the upper shield member 15, the lower shield member 29, and the shield reinforcement member 45 forming the shield structure 14 can cover the terminals and the insulated wires arranged in the plug 1 all around, and the contact portions between the upper shield member 15, the lower shield member 29, and the shield reinforcement member 45 can be increased by the contact pieces 51 and the contact protrusions 52. Overall, the integrity of the shield structure 14 surrounding the terminals 3 and the insulated wires 92 can be improved. Therefore, while the characteristic impedance of the plug 1 is suppressed from changing by providing the arrangement portion 22 in a part of the shield structure 14, the shielding effect of the shield structure 14 can be suppressed from being reduced. Furthermore, the upper shield member 15 , the lower shield member 29 , and the shield reinforcement member 45 can be easily manufactured by simple bending or the like, and the shield structure 14 can be easily manufactured by combining the upper shield member 15 , the lower shield member 29 , and the shield reinforcement member 45 .

[0058] Furthermore, as described later, when the plug 1 is connected to the socket 71, the two protrusions 77 of the housing 76 of the socket 71 come into contact at the upper terminal shielding portion 16. Furthermore, the two protrusions 78 of the housing 76 of the socket 71 come into contact with the ground connection member 73 at the lower terminal shielding portion 35. Furthermore, the housing 76 of the socket 71 and the ground connection member 73 are respectively connected to the ground connection of the substrate 98 (see Fig.18 ). In this way, the return current of the high-frequency signal transmitted by the plug 1 flows through the shield structure 14 by electrically connecting the upper terminal shield part 16 and the lower terminal shield part 35 to the ground of the substrate 98 respectively. According to the plug 1 of this embodiment, the flow of the return current can be improved by increasing the contact portion between the upper shield member 15, the lower shield member 29 and the shield reinforcement member 45. Therefore, the shield structure 14 can improve the effect of suppressing the noise radiation from the plug 1 to the outside.

[0059] (socket) Fig.17 (A) shows a socket 71 to which the plug 1 is connected. Fig.17 (B) shows a state where the socket 71 is viewed from above. Fig.17 (C) shows the Fig.17 A cross section of the socket 71 obtained by cutting along the cutting line FF in (B).

[0060] like Fig.17 As shown in (C), the socket 71 is mounted on the substrate 98. Fig.17 As shown in (A) to (C) of FIG. 7 , the socket 71 includes two terminals 72, a ground connection member 73, a shell 74, and a housing 76. The shell 74 is formed of an insulating material and is formed in a cylindrical shape with a bottom. The shell 74 is formed with a fitting hole 75 for the fitting portion 62 of the plug 1 to fit. Each terminal 72 and the ground connection member 73 are fixed to the shell 74, and one end of each terminal 72 and the ground connection member 73 is respectively located in the fitting hole 75. In addition, the other end of each terminal 72 is connected to the circuit provided on the substrate 98. In addition, the other end of the ground connection member 73 is connected to the ground of the substrate 98. In addition, the housing 76 is formed by bending a conductive plate, and covers the upper surface, the right surface, and the left surface of the shell 74. In addition, two protrusions 77 and 78 arranged in the up-down direction are provided on the right wall of the housing 76, and two protrusions 77 and 78 are also provided on the left wall of the housing 76. Each protrusion 77, 78 protrudes inward, and the front end of each protrusion 77, 78 passes through through holes formed in the right and left walls of the housing 74 and is located in the fitting hole 75. In addition, the housing 76 has a plurality of substrate connection parts 79, each of which is connected to the ground of the substrate 98.

[0061] Fig.18The state in which the socket 71 and the plug 1 are connected is shown by fitting the fitting portion 62 of the plug 1 into the fitting hole 75 of the socket 71. When the fitting portion 62 of the plug 1 is fitted into the fitting hole 75 of the socket 71, the terminals 72 of the socket 71 come into contact with the terminals 3 of the plug 1. At the same time, the protruding piece 77 provided on the upper side of the right wall of the housing 76 of the socket 71 comes into contact with the right wall 18 of the upper terminal shielding portion 16 of the plug 1, and the protruding piece 77 provided on the upper side of the left wall of the housing 76 of the socket 71 comes into contact with the left wall 19 of the upper terminal shielding portion 16 of the plug 1. In addition, at the same time, the tab 78 provided on the lower side of the right wall of the housing 76 of the socket 71 contacts the right wall of the lower terminal shield portion 35 of the plug 1 (the front part of the right wall 31 of the lower shield member 29), and the tab 78 provided on the upper side of the left wall of the housing 76 of the socket 71 contacts the left wall of the lower terminal shield portion 35 of the plug 1 (the front part of the left wall 32 of the lower shield member 29). In addition, at the same time, the ground connection member 73 of the socket 71 contacts the lower wall of the lower terminal shield portion 35 of the plug 1 (the front part of the lower wall 30 of the lower shield member 29). The tabs 77 provided on the two upper sides of the right wall and the left wall of the housing 76 contact the upper terminal shield portion 16, and the upper terminal shield portion 16 is electrically connected to the ground of the substrate 98. Furthermore, the lower terminal shield 35 is electrically connected to the ground of the substrate 98 by contact between the tabs 78 provided on both lower sides of the right and left walls of the housing 76 and the lower terminal shield 35 and the ground connection member 73 .

[0062] (How to use the plug) The plug 1 can be used as follows: Fig.13 The first usage mode in which the shield reinforcement member 45 is mounted on the plug body 2 as shown in FIG. Fig.11 As shown in the figure, the shield reinforcement member 45 is used in a second usage state in which the plug body 2 is not mounted.

[0063] By installing the shielding reinforcement member 45 on the plug body 2, the shielding effect of the shielding structure 14 is improved compared to the case where the shielding reinforcement member 45 is not installed on the plug body 2. When the shielding reinforcement member 45 is installed on the plug body 2, the noise resistance of the plug 1 can, for example, meet the noise resistance required for the transmission of a high-frequency signal having a frequency exceeding 400 MHz. On the other hand, when the shielding reinforcement member 45 is not installed on the plug body 2, the noise resistance of the plug 1 sometimes does not meet the noise resistance required for the transmission of a high-frequency signal having a frequency exceeding 400 MHz, but can meet the noise resistance required for the transmission of a high-frequency signal having a frequency below 400 MHz. The first use mode of the plug 1 is a use mode when a high-frequency signal having a frequency exceeding 400 MHz is transmitted through the plug 1, and the second use mode of the plug 1 is a use mode when a high-frequency signal having a frequency below 400 MHz is transmitted through the plug 1.

[0064] Fig.19 (A) shows a state where the plug body 2 to which the shield reinforcement member 45 is attached is inserted into the housing 61 in order to change the usage mode of the plug 1 to the first usage mode. Fig.19 (B) shows a state where the plug body 2 without the shield reinforcement member 45 attached is inserted into the housing 61 in order to change the usage mode of the plug 1 to the second usage mode.

[0065] like Fig.19 As shown in (A), the distance H1 from the lower surface of the lower wall 30 of the portion of the lower shield member 29 where the lower wire shield portion 36 is formed to the upper end of the right wall 31 (or the left wall) and the distance H2 from the lower surface of the lower wall 30 of the lower shield member 29 to the upper surface of the upper wall 17 of the upper terminal shield portion 16 are equal to each other. In addition, the dimension H3 in the vertical direction of the plug body storage portion 64 of the housing 61 is set to a value substantially equal to the distance H1 (or the distance H2) (strictly speaking, it is set to a value slightly larger than the distance H1 so that the plug body 2 can be easily inserted into the plug body storage portion 64 and the plug body 2 can be tightly stored in the plug body storage portion 64). Furthermore, as described above, the upper wire shielding portion 46 of the shield reinforcement member 45 enters between the rear portion of the right wall 31 and the rear portion of the left wall 32 of the lower shielding member 29, and when the plug body 2 (shielding structure 14) is viewed from the right or left, the upper wire shielding portion 46 does not protrude upward from the lower wire shielding portion 36. In addition, the position of the upper surface of the upper wall 47 of the upper wire shielding portion 46 is the same as the position of the upper surface of the upper wall 17 of the upper terminal shielding portion 16 in the vertical direction. Since the plug body 2 (shielding structure 14) has such a structure, by Fig.19 (A) and Fig.19As can be seen from the comparison of (B), whether the shield reinforcement member 45 is mounted on the plug body 2 or not mounted on the plug body 2, the front part of the plug body 2 is tightly accommodated in the plug body accommodation portion 64 of the housing 61. Therefore, the use mode of the plug 1 can be easily switched from the first use mode to the second use mode or from the second use mode to the first use mode by simply detaching the shield reinforcement member 45 from the plug body 2. For example, in order to switch the use mode of the plug 1, there is no need to change the housing.

[0066] Assuming that the upper wire shield 46 does not enter between the rear portion of the right wall 31 and the rear portion of the left wall 32 of the lower shield member 29 but is arranged to cover the lower shield member 29 from above, when the shield reinforcement member 45 is mounted on the plug body 2, the right wall 48 of the upper wire shield 46 is located to the right of the rear portion of the right wall 31 of the lower shield member 29, and the left wall 49 of the upper wire shield 46 is located to the left of the rear portion of the left wall 32 of the lower shield member 29. In this case, the left-right dimension of the portion of the plug body 2 inserted into the plug body receiving portion 64 of the shell 61 changes when the shield reinforcement member 45 is mounted and when the shield reinforcement member 45 is not mounted. In addition, if the upper wire shield 46 is arranged to protrude upward from the lower wire shield 36 when the plug body 2 (shield structure 14) is viewed from the right or left, the up-down dimension of the portion of the plug body 2 inserted into the plug body receiving portion 64 of the shell 61 changes when the shield reinforcement member 45 is mounted and when the shield reinforcement member 45 is not mounted. In this way, when the outer dimensions of the plug body 2 change as the shield reinforcement member 45 is attached to and detached from the plug body 2, the common housing 61 cannot be used when the plug 1 is used in the first usage mode and when the plug 1 is used in the second usage mode. As a result, the housing must be changed in order to change the usage mode of the plug 1, making it difficult to switch the usage mode of the plug 1. According to the plug 1 of this embodiment, this situation does not occur.

[0067] In addition, in the above-mentioned embodiment, the case where the shield layer connection barrel piece 40 of the lower shielding member 29 is crimped to the shield layer 95 of the cable 91 and the shield layer contact piece 26 of the upper shielding member 15, and the bent plate portion 53 of the shield reinforcement member 45 is installed on the outer peripheral side of the shield layer connection barrel piece 40 is cited, but the structure of the shield layer connection portion of the first shielding member, the second shielding member, and the third shielding member in the present invention is not limited to this. For example, it is also possible to set the shield layer connection portion of the first shielding member as a barrel piece, form the shield layer connection portion of the second shielding member into a plate shape, form the shield layer connection portion of the third shielding member into a bent plate shape, crimp the shield layer connection portion of the first shielding member to the shield layer of the cable and the shield layer connection portion of the second shielding member, and install the shield layer connection portion of the third shielding member on the outer peripheral side of the shield layer connection portion of the first shielding member. In addition, the shielding layer connection part of the first shielding component can be formed into a plate shape, the shielding layer connection part of the second shielding component can be formed into a curved plate shape, the shielding layer connection part of the third shielding component can be set as a cylindrical piece, the shielding layer connection part of the third shielding component can be crimped to the shielding layer of the cable and the shielding layer connection part of the first shielding component, and the shielding layer connection part of the second shielding component can be installed on the outer peripheral side of the shielding layer connection part of the third shielding component.

[0068] Furthermore, the number of insulated electric wires of the cable may be three or more, and the number of terminals of the plug may be increased according to the number of insulated electric wires.

[0069] The present invention can be modified appropriately within the scope of the gist or concept of the invention that can be understood from the claims and the entire specification, and the connector and the connector with cable accompanying the above-mentioned modification are also included in the technical concept of the present invention. Explanation of symbols

[0070] 1 plug; 2. Plug body; 3 terminals; 7. Insulation components; 14 shielding structure; 15 upper shielding member (first shielding member); 16: upper terminal shielding portion (terminal shielding portion of the first shielding member); 22 Arrangement Department; 26 shielding layer contact piece (shielding layer connecting portion of the first shielding member); 29 lower shielding member (second shielding member); 30 lower wall; 31 right wall; 32 left wall; 35 lower terminal shielding portion (terminal shielding portion of the second shielding member); 36: lower wire shielding portion (wire shielding portion of the second shielding member); 40 shield layer connecting tube piece (shield layer connecting portion of the second shield member); 45 shielding reinforcement member (third shielding member); 46: upper wire shielding portion (wire shielding portion of the third shielding member); 47 upper wall; 48 right wall (contact portion between the second members); 49 left wall (contact portion between second members); 51 contact piece (first inter-member contact portion); 52 contact convex portion (convex portion); 53 bent plate portion (shield layer connecting portion of the third shield member); 91 cables; 92 insulated wire; 95 shielding layer.

Claims

1. A connector, the connector being mounted on a cable comprising a plurality of insulated wires and a shielding layer covering the plurality of insulated wires, characterized in that: When the extension direction of the end side portion of the cable mounted on the connector is the front-to-back direction, the direction perpendicular to the front-to-back direction is the up-down direction, and the direction perpendicular to the front-to-back direction and the up-down direction is the left-to-right direction, the connector includes: a plurality of terminals, the plurality of terminals being respectively attached to front end portions of the plurality of insulated electric wires exposed from the shielding layer by terminal processing and extending forward; an insulating member covering outer peripheral sides of the plurality of terminals; and A shielding structure formed of a conductive material, The shield structure is formed by at least a first shield member, a second shield member and a third shield member. The first shielding member comprises: a terminal shielding portion covering the insulating member from above; an arranging portion that bundles and arranges the plurality of insulated electric wires exposed from the shielding layer; and a shielding layer connecting portion connected to the shielding layer, The second shielding member comprises: a terminal shielding portion covering the insulating member from below; a wire shielding portion covering the arrangement portion from below; and a shielding layer connecting portion connected to the shielding layer, The third shielding member comprises: a wire shielding portion covering the arrangement portion from above; and a shielding layer connecting portion connected to the shielding layer, The wire shielding portion of the third shielding member has: a first inter-member contact portion in contact with the arrangement portion; and A second inter-member contact portion that contacts the wire shielding portion of the second shielding member.

2. The connector according to claim 1, characterized in that: The first member-to-member contact portion is a contact piece that protrudes downward from the wire shielding portion of the third shielding member and whose lower end portion contacts the arrangement portion.

3. The connector according to claim 1, characterized in that: The wire shielding part of the second shielding component has a lower wall, a right wall and a left wall, and the wire shielding part of the third shielding component has an upper wall, a right wall and a left wall. The wire shielding part of the third shielding component enters between the right wall and the left wall of the wire shielding part of the second shielding component. The right wall of the wire shielding part of the third shielding component and the left wall of the wire shielding part of the third shielding component are respectively the contact parts between the second components. The right wall of the wire shielding part of the third shielding component contacts the right wall of the wire shielding part of the second shielding component, and the left wall of the wire shielding part of the third shielding component contacts the left wall of the wire shielding part of the second shielding component.

4. The connector according to claim 3, characterized in that: A convex portion contacting the left surface of the right wall of the wire shielding part of the second shielding member is provided on the right surface of the right wall of the wire shielding part of the third shielding member, and a convex portion contacting the right surface of the left wall of the wire shielding part of the second shielding member is provided on the left surface of the left wall of the wire shielding part of the third shielding member.

5. The connector according to claim 3, characterized in that: When the shield structure is viewed from the right or left, the wire shielding portion of the third shield member does not protrude upward from the wire shielding portion of the second shield member.

6. The connector according to claim 1, characterized in that: The shield layer connecting portion of the first shield member is formed in a plate shape and contacts the upper portion of the shield layer. The shield layer connecting portion of the second shield member is a cylindrical piece, which is crimped to the shield layer and the shield layer connecting portion of the first shield member by riveting. The shielding layer connecting portion of the third shielding member is formed into a curved plate with a C-shaped cross-sectional shape, contacts the shielding layer connecting portion of the second shielding member, and is installed on the shielding layer connecting portion of the second shielding member in a manner of embracing the shielding layer connecting portion of the second shielding member.

7. The connector according to claim 1, characterized in that: The arranging portion includes a bundling piece formed in a plate shape and deformed into a cylindrical shape so as to collectively surround the plurality of insulated wires exposed from the shielding layer, thereby bundling and arranging the plurality of insulated wires exposed from the shielding layer.

8. A connector with a cable, characterized in that: The connector with a cable includes a cable and the connector according to any one of claims 1 to 7, wherein the cable includes a plurality of insulated wires and a shielding layer covering the plurality of insulated wires.

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