High frequency connector and high frequency connector with cable

Abstract

To provide a high frequency connector and a high frequency connector with a cable, improved in electrical connection reliability.SOLUTION: An inner terminal 6 is connected to a core wire 51 of a coaxial cable 5. A cylindrical sleeve 9 is covered with a braided wire 54. An inner housing 7 accommodates the inner terminal 6. An outer terminal 8 covers an outer periphery of the inner housing 7. The outer terminal 8 has a braided wire crimping piece 82 crimped to the braided wire 54 on the sleeve 9. A plurality of projections 93 are provided on an outer peripheral surface of the sleeve 9. The plurality of projections 93 are provided at intervals along an axis with a front-to-back direction as the axis.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a high-frequency connector and a high-frequency connector with a cable. [Background technology]

[0002] High-frequency connectors that are connected to the terminals of shielded electric wires (cables) have been proposed, as described in Patent Documents 1 and 2. In Patent Documents 1 and 2, a sleeve is provided that is wrapped with the braided wire of the cable, and the braided wire is crimped from above the sleeve with a braided wire crimping piece of the terminal.

[0003] However, the surface of the sleeve is smooth and without irregularities. After the braided wire is unwound, it is placed over the sleeve and crimped with the braided wire crimping piece. However, because the sleeve surface is smooth, there is a risk that the braided wire may slip off. If the braided wire is misaligned, the braided wire cannot be crimped evenly by the braided wire crimping piece, which can reduce the reliability of the electrical connection. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-69366 [Patent Document 2] Japanese Patent Application Laid-Open No. 2003-317882 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a high-frequency connector and a high-frequency connector with a cable that are designed to improve the reliability of electrical connection. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the high-frequency connector according to the present invention has the following features. an inner terminal connected to a core wire of a cable in which an inner insulator covering the core wire is covered with a braided wire; a cylindrical sleeve covered with the braided wire; an inner housing that accommodates the inner terminal; an outer terminal covering the outer periphery of the inner housing, the outer terminal has a braided wire crimping piece that is crimped to the braided wire on the sleeve, A high frequency connector, A plurality of protrusions are provided on the outer peripheral surface of the sleeve. It is a high frequency connector.

[0007] In order to achieve the above-mentioned object, the high-frequency connector with cable according to the present invention has the following features. The core wire and an inner insulator covering the core wire; a braided wire covering the inner insulation; an outer insulation covering the braided wire; an inner terminal connected to the core wire; a cylindrical sleeve covered with the braided wire; an inner housing that accommodates the inner terminal; an outer terminal covering the outer periphery of the inner housing; a high frequency connector having the outer terminal has a braided wire crimping piece that is crimped to the braided wire on the sleeve, A high-frequency connector with a cable, A plurality of protrusions are provided on the outer peripheral surface of the sleeve. It is a high frequency connector with a cable. [Effects of the Invention]

[0008] The high-frequency connector and the high-frequency connector with cable according to the present invention have the effect of improving the reliability of electrical connection.

[0009] The present invention has been briefly described above. The details of the present invention will become clearer by reading the following detailed description of the invention (hereinafter referred to as "embodiments") with reference to the accompanying drawings. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is an exploded perspective view of a high-frequency connector according to the present invention. [Figure 2] FIG. 2 is an exploded perspective view of the cable assembly shown in FIG. [Figure 3] 3A is a perspective view of the sleeve shown in FIG. 2 before crimping, and FIG. 3B is a perspective view of the sleeve shown in FIG. 2 after crimping. [Figure 4] FIG. 4 is an explanatory diagram for explaining the manufacturing procedure of the high-frequency connector. [Figure 5] FIG. 5 is an explanatory diagram for explaining the manufacturing procedure of the high-frequency connector. [Figure 6] FIG. 6 is an explanatory diagram for explaining the manufacturing procedure of the high-frequency connector. DETAILED DESCRIPTION OF THE INVENTION

[0011] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0012] For the sake of convenience, the following definitions are used to refer to "front," "rear," "left," "right," "upper," and "lower" as shown in Figures 1 to 6. The "front-rear direction," "left-right direction," and "up-down direction" are perpendicular to one another. The "front-rear direction" corresponds to the "axial direction" of the present invention.

[0013] As shown in FIG. 1, a high-frequency connector 1 is attached to the end of a coaxial cable 5 (cable). The high-frequency connector 1 and the coaxial cable 5 form a cable-attached high-frequency connector. The high-frequency connector 1 includes an outer housing 2, a spacer 3, and a cable assembly 4. The outer housing 2 is a resin housing that houses the cable assembly 4, which will be described later. The spacer 3 is provided so that it can be attached to the outer housing 2 from below. The spacer 3 is provided so that it can be locked to the outer housing 2 at a temporary locking position and a full locking position. At the temporary locking position, the spacer 3 allows the cable assembly 4 to be inserted into the outer housing 2. At the full locking position, the spacer 3 locks to the cable assembly 4, preventing it from slipping out of the outer housing 2.

[0014] As shown in Figure 2, the cable assembly 4 has an inner terminal 6 attached to the end of the coaxial cable 5, a resin inner housing 7 that accommodates the inner terminal 6, a metal outer terminal 8 that accommodates the inner housing 7, and a sleeve 9.

[0015] The coaxial cable 5 has a core wire 51, an insulator 52 (internal insulator) covering the core wire 51, a foil 53 covering the insulator 52, a braided wire 54 covering the outer periphery of the insulator 52 and the foil 53, and a sheath 55 (external insulator) covering the outer periphery of the braided wire 54.

[0016] The inner terminal 6 has a terminal connection portion 61 and a core wire crimping piece 62. The terminal connection portion 61 is connected to a terminal of a mating connector. The core wire crimping piece 62 is provided behind the terminal connection portion 61 and is crimped to the core wire 51 of the coaxial cable 5.

[0017] In this embodiment, the inner housing 7 is provided in a substantially cylindrical shape, and accommodates the inner terminal 6 inside the cylinder.

[0018] The outer terminal 8 has an accommodating portion 81 that accommodates the inner housing 7, a braided wire crimping piece 82 that crimps the braided wire 54 of the coaxial cable 5, and a sheath crimping piece 83 that crimps the sheath 55 of the coaxial cable 5. In this embodiment, the accommodating portion 81 is cylindrical, and the inner housing 7 is accommodated within the cylinder. The braided wire crimping piece 82 is located rearward of the accommodating portion 81. The sheath crimping piece 83 is located rearward of the braided wire crimping piece 82.

[0019] After the braided wire 54 is crimped onto the sleeve 9, the braided wire 54 is folded back to cover the sleeve 9. The braided wire crimping pieces 82 of the outer terminal 8 described above are crimped onto the braided wire 54 on the sleeve 9. The sleeve 9 is formed by stamping a metal plate. As shown in FIG. 3(A), before crimping, the sleeve 9 has a bottom plate 91 and a pair of standing plates 92, 92 standing on both the left and right sides of the bottom plate 91. By crimping the upper ends of the pair of standing plates 92, 92 so that they approach each other, the sleeve 9 becomes cylindrical after the braided wire 54 is crimped, as shown in FIG. 3(B).

[0020] The sleeve 9 is provided with a plurality of protrusions 93 that are projected outward. The protrusions 93 are provided at intervals from one another on the outer surface of the sleeve 9 in the front-rear direction (axial direction) and in the direction around the axis that is the front-rear direction. The protrusions 93 are provided from the bottom plate 91 of the sleeve 9 to the pair of upright plates 92, 92.

[0021] Next, a manufacturing procedure for the high-frequency connector 1 having the above-described configuration will be described with reference to Figures 4 to 6. As shown in Figure 4(A), the coaxial cable 5 is cut to a predetermined length. Next, as shown in Figure 4(B), the sheath 55 at the terminal is stripped to expose the braided wire 54. At this time, a portion of the tip of the braided wire 54 is cut.

[0022] Thereafter, as shown in FIG. 4(C), the sleeve 9 is crimped from above the exposed braided wire 54. At this time, the rear side of the exposed braided wire 54 is crimped by the sleeve 9, while the front side is not crimped. Next, as shown in FIG. 4(D), the front side of the braided wire 54 that is not crimped is unfolded and folded back toward the rear side, and then covered with the sleeve 9. At this time, the braided wire 54 fits between the protrusions 93. More specifically, the protrusions 93 pass through the mesh of the braided wire 54 and protrude outward beyond the braided wire 54. The multiple protrusions 93 are provided from the bottom plate 91 of the sleeve 9 to the pair of upright plates 92, i.e., around the entire circumference. Therefore, the braided wire 54 is evenly arranged around the entire circumference of the sleeve 9. As a result, the protrusions 93 provided on the sleeve 9 restrict the movement of the braided wire 54.

[0023] Next, as shown in Fig. 4(E), the foil 53 and the insulator 52 are stripped from the tip of the coaxial cable 5 to expose the core wire 51. Next, as shown in Fig. 5(A), the core wire crimping piece 62 of the inner terminal 6 is crimped to the exposed core wire 51. Next, as shown in Fig. 5(B), the inner terminal 6 is housed in the inner housing 7.

[0024] Next, as shown in Fig. 5(C), inner housing 7 is accommodated in accommodating portion 81 of outer terminal 8. At this time, braided wire 54 is mounted on braided wire crimping piece 82, and sheath 55 is mounted on sheath crimping piece 83. Next, as shown in Fig. 5(D), braided wire 54 is crimped from above sleeve 9 with braided wire crimping piece 82, and sheath 55 is crimped with sheath crimping piece 83.

[0025] Next, as shown in Fig. 5(A), the outer terminal 8 is housed in the outer housing 2 with the spacer 3 provisionally locked. Next, as shown in Fig. 5(B), the spacer 3 is fully locked to complete the assembly.

[0026] According to the above-described embodiment, a plurality of protrusions 93 are provided on the outer peripheral surface of the sleeve 9. As a result, the braided wire 54 fits between the protrusions 93, restricting the movement of the braided wire 54. This makes it possible to suppress deviation of the braided wire 54 when the braided wire crimping piece 82 is crimped from above the sleeve 9, thereby improving the reliability of the electrical connection.

[0027] According to the embodiment described above, a plurality of protrusions 93 are provided at intervals from one another along the axial direction of the coaxial cable 5. This allows the braided wire 54 to be uniformly arranged in the axial direction, and further suppresses deviation of the braided wire 54 when the braided wire crimping piece 82 is crimped from above the sleeve 9, thereby improving the reliability of the electrical connection.

[0028] The present invention is not limited to the above-described embodiments, and can be appropriately modified, improved, etc. Furthermore, the material, shape, size, number, location, etc. of each component in the above-described embodiments are arbitrary and not limited as long as they can achieve the present invention.

[0029] According to the above-described embodiment, after the braided wire 54 is crimped with the sleeve 9, the front side of the braided wire 54 is folded back to cover the sleeve 9 with the braided wire 54, but this is not limited to this. As in Patent Document 2, the braided wire 54 may be spread out and the sleeve 9 inserted between the insulator 52 and the braided wire 54, so that the sleeve 9 is covered with the braided wire 54.

[0030] According to the embodiment described above, the protrusions 93 are provided at intervals along both the front-rear direction and the direction around the axis of the front-rear direction, but this is not limiting. The protrusions 93 may be provided at intervals along only the direction around the axis.

[0031] Here, the features of the embodiments of the high-frequency connector and the high-frequency connector with cable according to the present invention described above will be briefly summarized and listed below in [1] to [3].

[0032] [1] an inner terminal (6) connected to a core wire (51) of a cable (5) in which an inner insulator (52) covering the core wire (51) has an outer periphery covered with a braided wire (54); a cylindrical sleeve (9) covered with the braided wire (54); an inner housing (7) that accommodates the inner terminal (6); and an outer terminal (8) covering the outer periphery of the inner housing (7), The outer terminal (8) has a braided wire crimping piece (83) that is crimped to the braided wire (54) on the sleeve (9). A high frequency connector (1), A plurality of protrusions (93) are provided on the outer peripheral surface of the sleeve (9). High frequency connector (1).

[0033] According to the high-frequency connector (1) having the configuration [1] above, a plurality of protrusions (93) are provided on the outer peripheral surface of the sleeve (9). As a result, the braided wire (54) fits between the protrusions (93) and movement of the braided wire (54) is restricted, which prevents the braided wire (54) from becoming misaligned when the braided wire crimping piece (82) is crimped from above the sleeve (9), thereby improving the reliability of the electrical connection.

[0034] [2] In the high-frequency connector (1) described in [1], The protrusions (93) are provided in plural at intervals along the axial direction of the cable (5). High frequency connector (1).

[0035] According to the high-frequency connector (1) having the configuration [2] above, the braided wire (54) can be uniformly arranged in the axial direction, and the bias of the braided wire (54) can be further suppressed when the braided wire crimping piece (82) is crimped from above the sleeve (9), thereby improving the reliability of the electrical connection.

[0036] [3] A core wire (51), an inner insulator (52) covering the core wire (51); a braided wire (54) covering the inner insulation (52); a cable (5) having an outer insulation (55) covering the braided wire (54); an inner terminal (6) connected to the core wire (51); a cylindrical sleeve (9) covered with the braided wire (54); an inner housing (7) that accommodates the inner terminal (6); an outer terminal (8) covering the outer periphery of the inner housing (7); A high-frequency connector (1) having The outer terminal (8) has a braided wire crimping piece (82) that is crimped to the braided wire (54) on the sleeve (9). A high-frequency connector with a cable, A plurality of protrusions (93) are provided on the outer peripheral surface of the sleeve (9). High frequency connector with cable.

[0037] According to the high-frequency connector with cable having the configuration [3] above, a plurality of protrusions 93 are provided on the outer peripheral surface of the sleeve 9. This allows the braided wire 54 to fit between the protrusions 93, restricting the movement of the braided wire 54, thereby preventing the braided wire 54 from becoming misaligned when the braided wire crimping piece 82 is crimped from above the sleeve 9, thereby improving the reliability of the electrical connection. [Explanation of symbols]

[0038] 1 High Frequency Connector 5 Coaxial cable (cable) 6 Inner terminal 7 Inner housing 8 outer terminal 9 Sleeve 51 Core Wire 52 Insulator (internal insulator) 54 Braided wire 82 Braided wire clamping piece 93 Protrusion

Claims

1. an inner terminal connected to a core wire of a cable in which an inner insulator covering the core wire is covered with a braided wire; a cylindrical sleeve covered with the braided wire; an inner housing that accommodates the inner terminal; an outer terminal covering the outer periphery of the inner housing, the outer terminal has a braided wire crimping piece that is crimped to the braided wire on the sleeve, A high frequency connector, A plurality of protrusions are provided on the outer peripheral surface of the sleeve. High frequency connector.

2. 2. The high-frequency connector according to claim 1, The protrusions are provided in a plurality at intervals along the axial direction of the cable. High frequency connector.

3. The core wire and an inner insulator covering the core wire; a braided wire covering the inner insulation; an outer insulation covering the braided wire; an inner terminal connected to the core wire; a cylindrical sleeve covered with the braided wire; an inner housing that accommodates the inner terminal; an outer terminal covering the outer periphery of the inner housing; a high frequency connector having the outer terminal has a braided wire crimping piece that is crimped to the braided wire on the sleeve, A high-frequency connector with a cable, A plurality of protrusions are provided on the outer peripheral surface of the sleeve. High frequency connector with cable.

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