Coaxial cable connector

Abstract

To provide a coaxial cable connector capable of improving EMC.SOLUTION: A relay connector device 30 as one example of a coaxial cable connector comprises: a contact 340 which includes an electric conductor as a material and axially extends; an inner housing 330 which includes an insulator as a material, and supports the contact 340 such that one end of the contact 340 is exposed; a GND shell 310 which includes an electric conductor as a material, and has a part covering at least a part of the inner housing 330; and an EMI shell 370 which includes an electric conductor as a material, and has a part covering a gap 311 of the GND shell 310. The EMI shell 370 covers at least one of the inner housing 330, the other end of the contact 340 exposed from the inner housing 330, and a core wire 391 of a cable 390 connected to the other end of the contact 340 at a gap 311.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present disclosure relates to coaxial cable connectors. [Background technology]

[0002] For in-vehicle coaxial connectors, improving the high frequency transmission characteristics is essential for improving performance. For example, in coaxial cable connectors such as relay connector devices that relay cables, if there are gaps in the outer shell, the electromagnetic compatibility (EMC) decreases, increasing the risk of electromagnetic interference. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-389834 A Summary of the Invention [Problem to be solved by the invention]

[0004] For example, in a relay connector device as disclosed in Patent Document 1, a gap is formed in the outer shell for manufacturing and assembly purposes, which reduces the EMC of the relay connector device.

[0005] The present disclosure has been made in order to solve such problems, and has an object to provide a coaxial cable connector that can improve EMC. [Means for solving the problem]

[0006] According to the aspect of the present disclosure, a coaxial cable connector is a coaxial cable connector for connecting a cable, and comprises: contacts extending in the axial direction and containing a conductor as their material; an insulator containing an insulator as its material and supporting the contacts so that one end of the contacts is exposed; a GND shell containing the conductor as its material and having a portion covering at least a part of the insulator; and an EMI shell containing the conductor as its material and having a portion covering a gap in the GND shell, wherein the EMI shell covers at least one of the insulator, the contacts exposed from the insulator, and a core wire connected to the other end of the contact in the cable in the gap.

[0007] In the above coaxial cable connector, the cable includes the core wire, which contains the conductor as its material and is connected to the other end of the contact, a covering member, which contains the insulator as its material and has a portion covering the core wire, a shielding member, which contains the conductor as its material and has a portion covering the covering member, and an outer cover, which contains the insulator as its material and has a portion covering the shielding member, and the EMI shell may cover at least any of the insulator, the contact exposed from the insulator, the covering member exposed from the shielding member, and the core wire exposed from the covering member and connected to the other end of the contact in the gap.

[0008] The coaxial cable connector further includes a sleeve having a portion covering the shielding member exposed from the outer cover, and the EMI shell includes a first portion covering the insulator via the GND shell and a second portion covering the sleeve via the GND shell, and a width of the first portion in a predetermined direction perpendicular to the axial direction may be different from a width of the second portion in the predetermined direction.

[0009] In the above coaxial cable connector, the GND shell may have a first holding portion, and the EMI shell may have a second holding portion that fits into the first holding portion.

[0010] In the coaxial cable connector, the EMI shell may be joined to the GND shell.

[0011] In the coaxial cable connector, the EMI shell may be joined to the GND shell by laser welding.

[0012] In the coaxial cable connector, the EMI shell may be joined to the GND shell in the vicinity of an edge on one end side of the EMI shell. Effect of the Invention

[0013] According to the present disclosure, it is possible to provide a coaxial cable connector capable of improving EMC. [Brief description of the drawings]

[0014] [Figure 1] 11 is a cross-sectional view illustrating a relay connector device according to a comparative example. [Diagram 2] 11 is a perspective view illustrating a connector in a relay connector device according to a comparative example. FIG. [Diagram 3] 11 is a perspective view illustrating a connector in a relay connector device according to a comparative example. FIG. [Figure 4] 11 is an exploded perspective view illustrating each member constituting a connector in a relay connector device according to a comparative example. FIG. [Diagram 5] 11 is an exploded perspective view illustrating each member constituting a connector in a relay connector device according to a comparative example. FIG. [Figure 6] 10A to 10C are cross-sectional views illustrating the operation of connecting connectors in a relay connector device according to a comparative example. [Figure 7] 7 is a perspective view illustrating a connector in a relay connector device according to a comparative example, and is an enlarged view of a portion VII in FIG. 3. FIG. [Figure 8] 1 is a cross-sectional view illustrating a relay connector device according to a first embodiment. [Figure 9]1 is a perspective view illustrating a connector in a relay connector device according to a first embodiment. FIG. [Figure 10] 1 is a perspective view illustrating a connector in a relay connector device according to a first embodiment. FIG. [Figure 11] 1 is an exploded perspective view illustrating each member constituting a connector in a relay connector device according to a first embodiment. FIG. [Figure 12] 1 is an exploded perspective view illustrating each member constituting a connector in a relay connector device according to a first embodiment. FIG. [Figure 13] 2 is a perspective view illustrating an EMI shell in the relay connector device according to the first embodiment. FIG. [Figure 14] 3 is a side view illustrating the connector in the relay connector device according to the first embodiment with the EMI shell removed. FIG. [Figure 15] 1 is a perspective view illustrating a connector in a relay connector device according to a first embodiment with an EMI shell removed. FIG. [Figure 16] 2 is a cross-sectional perspective view illustrating the connector in the relay connector device according to the first embodiment with an EMI shell removed. FIG. [Figure 17] 3 is a side view illustrating the connector in a state where the EMI shell is made transparent in the relay connector device according to the first embodiment. FIG. [Figure 18] 18 is a cross-sectional view illustrating the connector in the relay connector device according to the first embodiment, showing a cross section taken along line XVIII in FIG. 10. FIG. [Figure 19] 19 is a cross-sectional view illustrating the connector in the relay connector device according to the first embodiment, showing a cross section along line XIX in FIG. [Figure 20] 1 is a perspective view illustrating a connector in a relay connector device according to a first embodiment. FIG. [Figure 21] 5A to 5C are cross-sectional views illustrating the connecting operation of the connectors in the relay connector device according to the first embodiment. [Figure 22]4 is a graph illustrating EMI characteristics in the relay connector device according to the first embodiment, where the horizontal axis indicates the frequency of a signal and the vertical axis indicates the magnitude of the signal in decibels. [Figure 23] 11A and 11B are diagrams illustrating noise leakage to the outside in a relay connector device according to a comparative example. [Figure 24] 5A to 5C are diagrams illustrating an example of noise leakage to the outside in the relay connector device according to the first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, a specific configuration of this embodiment will be described with reference to the drawings. The following description shows a preferred embodiment of the present disclosure, and the scope of the present disclosure is not limited to the following embodiment. In the following description, items with the same reference numerals indicate substantially the same contents. Some reference numerals and hatching are omitted to avoid cluttering the drawings.

[0016] A coaxial cable connector according to an embodiment will be described. In the following, a relay connector device that relays a cable will be described as an example of the coaxial cable connector according to this embodiment. The coaxial cable connector according to this embodiment is not limited to a relay connector device, and may include other connector devices such as a coaxial connector device that fits a cable to a board, so long as it connects a coaxial cable. Before describing the relay connector device according to the first embodiment, a relay connector device according to a comparative example will be described for comparison. This will make the features of the relay connector device according to the first embodiment clearer. The comparative example is also included in the technical concept of this embodiment.

[0017] <Comparative Example> A relay connector device according to a comparative example will be described. FIG. 1 is a cross-sectional view illustrating a relay connector device 10 according to the comparative example. FIG. 2 is a perspective view illustrating a connector 100 in the relay connector device 10 according to the comparative example. FIG. 3 is a perspective view illustrating a connector 200 in the relay connector device 10 according to the comparative example. An external housing is omitted in FIGS. 1 to 3. Note that the relay connector device 10 may be used separately from the external housing.

[0018] As shown in Figs. 1 to 3, the relay connector device 10 according to the comparative example includes a connector 100 and a connector 200. The connector 100 is, for example, a male connector, and the connector 200 is, for example, a female connector. The connector 100 is connected to an end of a cable 190. The connector 200 is connected to an end of a cable 290. The connector 100 is connected to the connector 200. In this way, the relay connector device 10 connects the cables 190 and 290.

[0019] Here, for the convenience of explaining the relay connector device 10 and the relay connector device 30 described later, an XYZ Cartesian coordinate system is introduced. For example, the axial direction of the relay connector device 10 and the like that is coaxial is defined as the X-axis direction. When the connectors 100 and 200 are connected, the direction in which the male connector 100 faces the female connector 200 is defined as the +X-axis direction. The two directions perpendicular to the X-axis are defined as the Y-axis direction and the Z-axis direction.

[0020] <Male connector> The male connector 100 will be described. Fig. 4 is an exploded perspective view illustrating each member constituting the connector 100 in the relay connector device 10 according to the comparative example. As shown in Figs. 1 to 2 and 4, the connector 100 includes a GND shell 110, a GND shell 120, an inner housing 130, a contact 140, a sleeve 150, and an outer housing 180. Each member will be described below.

[0021] <GNDシェル> The GND shell 110 and the GND shell 120 include a conductor as a material. The GND shell 110 and the GND shell 120 include, for example, a metal as a material. Note that the GND shell 110 and the GND shell 120 may include a material other than a metal as long as the material includes a conductor. The GND shell 110 and the GND shell 120 are electrically connected to a ground potential.

[0022] The GND shell 110 and the GND shell 120 have a tubular shape. The GND shell 110 and the GND shell 120 have, for example, a cylindrical shape. The GND shell 110 and the GND shell 120 are arranged so that their central axes are in the X-axis direction. The GND shell 110 and the GND shell 120 have the same central axis. The GND shell 110 is arranged on the +X-axis direction side of the GND shell 120. The GND shell 110 may partially overlap with the GND shell 120. For example, the portion of the GND shell 110 on the -X-axis direction side overlaps with the portion of the GND shell 120 on the +X-axis direction side. The GND shell 110 and the GND shell 120 are integrated to form a cylindrical shape.

[0023] The inner housing 130 and the contacts 140 are disposed inside the GND shell 110 and the GND shell 120. The sleeve 150 and a part of the cable 190 may be disposed inside the GND shell 120. Thus, the GND shell 110 and the GND shell 120 have a portion that covers at least a part of the inner housing 130. The inner housing 130 may be press-fitted into the GND shell 110.

[0024] The end of the GND shell 110 on the +X-axis direction side is disposed near the end of the internal housing 130 on the +X-axis direction side. The end of the GND shell 110 on the +X-axis direction side may coincide with the end of the internal housing 130 on the +X-axis direction side at a position on the X-axis. The end of the GND shell 120 on the -X-axis direction side is located on the outer cover 194 of the cable 190. The end of the GND shell 120 on the -X-axis direction side is located near the end of the sleeve 150 on the -X-axis direction side. For example, the end of the GND shell 120 on the -X-axis direction side may coincide with the end of the sleeve 150 on the -X-axis direction side at a position on the X-axis.

[0025] <Inner housing> The inner housing 130 includes an insulating material as a material. The inner housing 130 is also called an insulator. The inner housing 130 includes, for example, a resin as a material. Note that the inner housing 130 may include a material other than a resin as long as it includes an insulating material.

[0026] The internal housing 130 has a tubular shape. The internal housing 130 has, for example, a cylindrical shape. The central axis of the internal housing 130 is arranged to be in the X-axis direction. The internal housing 130 is arranged inside the GND shell 110. The contacts 140 are arranged inside the internal housing 130. Thus, the internal housing 130 supports the contacts 140. The contacts 140 arranged inside the internal housing 130 may be press-fitted into the internal housing 130.

[0027] A recess 131 is formed in an end face on the +X axis direction side of the inner housing 130. An end of the contact 140 on the +X axis direction side protrudes from a bottom surface of the recess 131. One end of the contact 140 on the +X axis direction side includes a protrusion 141. A side wall of the recess 131 of the inner housing 130 surrounds the end of the contact 140 on the +X axis direction side.

[0028] An end portion of the inner housing 130 on the -X axis direction side is located near an end portion of the contact 140 on the -X axis direction side. For example, the end portion of the inner housing 130 on the -X axis direction side may coincide with the other end of the contact 140 on the -X axis direction side in position on the X axis. A core wire 191 of the cable 190 is connected to the end portion of the contact 140 on the -X axis direction side. A connection portion between the contact 140 and the core wire 191 of the cable 190 may be disposed inside the inner housing 130.

[0029] <Contact> The contact 140 includes a conductor as a material. The contact 140 includes, for example, a metal as a material. Note that the contact 140 may include a material other than a metal as long as it includes a conductor. The contact 140 functions as, for example, a transmission path that transmits a high-frequency signal.

[0030] The contact 140 has a rod-like shape. The contact 140 is arranged so that the central axis of the contact 140 is in the X-axis direction. Thus, the contact 140 has a shape extending in the axial direction. The contact 140 includes a protrusion 141 at one end on the +X-axis direction side. The contact 140 is arranged inside the inner housing 130. The other end of the contact 140 on the -X-axis direction side is connected to the core wire 191 of the cable 190. The protrusion 141 at one end of the contact 140 on the +X-axis direction side is connected to a contact 240 in the female connector 200. The protrusion 141 of the contact 140 is convex so as to fit into the recess 241 of the contact 240.

[0031] <Sleeve> The sleeve 150 includes a conductor as a material. The sleeve 150 includes, for example, a metal as a material. Note that the sleeve 150 may include a material other than a metal as long as the material includes a conductor.

[0032] The sleeve 150 has a tubular shape. The sleeve 150 has, for example, a cylindrical shape. The sleeve 150 is disposed so that the central axis is in the X-axis direction. The sleeve 150 includes a cylindrical first portion 151 and a cylindrical second portion 152. The first portion 151 and the second portion 152 are connected in parallel in the X-axis direction. The first portion 151 is disposed on the +X-axis direction side of the second portion 152. The outer diameter of the first portion 151 is smaller than the outer diameter of the second portion 152. The inner diameter of the first portion 151 is smaller than the inner diameter of the second portion 152.

[0033] The first portion 151 is disposed inside the GND shell 120. The first portion 151 has a portion that covers the shield member 193 exposed from an end of the outer cover 194 of the cable 190. The second portion 152 covers the outer cover 194 of the cable 190. The connection portion between the first portion 151 and the second portion 152 is located near the end of the outer cover 194 on the +X-axis direction side.

[0034] <External housing> The outer housing 180 includes an insulator as a material. The outer housing 180 includes, for example, a resin as a material. Note that the outer housing 180 may include a material other than a resin as long as it includes an insulator.

[0035] The external housing 180 has a cylindrical shape. The external housing 180 has, for example, a rectangular cylindrical shape. The central axis of the external housing 180 is arranged to be aligned with the X-axis direction. The external housing 180 has an assembly of the GND shell 110, the GND shell 120, the internal housing 130, the contact 140, and the sleeve 150 attached thereto.

[0036] <Cable> The configuration of the cable 190 will be described below. The cable 190 has a shape that extends in one direction and is flexible. The cable 190 includes a core wire 191, a covering member 192, a shielding member 193, and an outer cover 194. The core wire 191, the covering member 192, the shielding member 193, and the outer cover 194 are arranged in concentric layers. The respective members are stacked concentrically with the core wire 191 at the center. When the cable 190 is extended in the X-axis direction, the respective members are stacked concentrically with the central axis in the X-axis direction. The covering member 192 covers the side surface of the core wire 191. The shielding member 193 covers the side surface of the covering member 192. The outer cover 194 covers the side surface of the shielding member 193.

[0037] The core wire 191 includes a conductor as a material. The core wire 191 has a linear shape. For example, the core wire 191 may include a copper wire. Note that the core wire 191 may include a material other than a copper wire as long as it includes a linear conductor. A portion of the core wire 191 on the +X-axis direction side protrudes from an end portion of the covering member 192 on the +X-axis direction side. The core wire 191 is connected to the other end of the contact 140 on the -X-axis direction side.

[0038] The covering member 192 includes an insulator as a material. The covering member 192 includes, for example, a resin. The covering member 192 may include a material other than resin as long as it includes an insulator. The covering member 192 has a tube-like shape. The covering member 192 has a portion that covers the side surface of the core wire 191. An end portion of the covering member 192 on the +X-axis direction side may be a cut surface. The portion of the covering member 192 on the +X-axis direction side may be exposed from an end portion of the shield member 193 on the +X-axis direction side.

[0039] The shield member 193 includes a conductor as a material. The shield member 193 may include, for example, a metal. The shield member 193 may include a material other than a metal as long as it includes a conductor. The shield member 193 has a tube-like shape. The shield member 193 has a portion that covers the side surface of the covering member 192. An end portion on the +X-axis direction side of the shield member 193 is folded back to the -X-axis direction side. Specifically, for example, the end portion on the +X-axis direction side of the shield member 193 is folded back to the -X-axis direction side along an edge on the +X-axis direction side of the first portion 151 of the sleeve 150. The folded back end portion on the +X-axis direction side of the shield member 193 is connected to the inner surface of the GND shell 120. Therefore, the shield member 193 is electrically connected to the ground potential. The portion on the +X-axis direction side of the shield member 193 may be exposed from the end portion on the +X-axis direction side of the outer cover 194.

[0040] The outer cover 194 includes an insulator as a material. The outer cover 194 may include, for example, a resin. The outer cover 194 may include a material other than resin as long as it includes an insulator. The outer cover 194 has a tube-like shape. The outer cover 194 has a portion that covers the side surface of the shield member 193. An end portion of the outer cover 194 on the +X-axis direction side may be a cut surface. The portion of the outer cover 194 on the +X-axis direction side may be covered by at least one of the sleeve 150 and the GND shell 120.

[0041] <Female connector> Next, a female connector 200 will be described. Fig. 5 is an exploded perspective view illustrating each member constituting the connector 200 in the relay connector device 10 according to the comparative example. As shown in Figs. 1, 3 and 5, the connector 200 includes a GND shell 210, a GND shell 220, an inner housing 230, a contact 240, a sleeve 250 and an outer housing 280.

[0042] In the case of the connector 100, the cable 190 is located on the −X-axis direction side of the connector 100, whereas in the case of the connector 200, the cable 290 is located on the +X-axis direction side of the connector 200. Other than this, the basic configurations and functions of the GND shell 210, the GND shell 220, the inner housing 230, the contacts 240, the sleeve 250, and the outer housing 280 of the connector 200 are similar to the configurations and functions of the GND shell 110, the GND shell 120, the inner housing 130, the contacts 140, the sleeve 150, and the outer housing 180 of the connector 100, respectively.

[0043] <GNDシェル> The GND shell 210 is disposed on the -X-axis direction side of the GND shell 220. An internal housing 230 and a contact 240 are disposed inside the GND shell 210 and the GND shell 220. A sleeve 250 and a cable 290 may be disposed inside the GND shell 220. The internal housing 230 may be press-fitted into the GND shell 210.

[0044] The end of the GND shell 210 on the -X axis direction side is disposed near the end of the internal housing 230 on the -X axis direction side. The end of the GND shell 210 on the -X axis direction side may coincide with the end of the internal housing 230 on the -X axis direction side at a position on the X axis. The end of the GND shell 220 on the +X axis direction side is located on the outer cover 294 of the cable 290. The end of the GND shell 220 on the +X axis direction side is located near the end of the sleeve 250 on the +X axis direction side. For example, the end of the GND shell 220 on the +X axis direction side may coincide with the end of the sleeve 250 on the +X axis direction at a position on the X axis.

[0045] <Inner housing> The internal housing 230 is disposed inside the GND shell 210. The contacts 240 are disposed inside the internal housing 230. Thus, the contacts 240 are disposed inside the GND shell 210. The internal housing 230 supports the contacts 240.

[0046] The inner housing 230 includes a first portion 231 and a second portion 232. The first portion 231 is disposed on the -X-axis direction side of the second portion 232. The first portion 231 and the second portion 232 are cylindrical with the central axis of the inner housing 230 as the central axis. The outer diameter of the first portion 231 is smaller than the outer diameter of the second portion 232. The first portion 231 fits into a recess 131 in the inner housing 130 of the connector 100. When the first portion 231 fits into the recess 131, the protrusion 141 in the contact 140 of the connector 100 fits into the recess 241 in the contact 240 of the connector 200.

[0047] An end portion on the -X axis direction side of the internal housing 230 forms an end face on the -X axis direction side of the first portion 231. The end portion on the -X axis direction side of the internal housing 230 is located near the end portion on the -X axis direction side of the GND shell 210. For example, the end portion on the -X axis direction side of the internal housing 230 may coincide with the position on the X axis of the end portion on the -X axis direction side of the GND shell 210. A recess 241 on the -X axis direction side of the contact 240 is disposed inside the first portion 231.

[0048] An end portion on the +X axis direction side of the internal housing 230 is located near an end portion on the +X axis direction side of the contact 240. For example, the end portion on the +X axis direction side of the internal housing 230 may coincide with the other end of the contact 240 on the +X axis direction side in position on the X axis. A core wire 291 of a cable 290 is connected to the end portion on the +X axis direction side of the contact 240. A connection portion between the contact 240 and the core wire 291 of the cable 290 may be disposed inside the internal housing 230.

[0049] <Contact> The contact 240 includes a recess 241 at one end on the -X axis direction side. The contact 240 is disposed inside the inner housing 230. An end of the contact 240 on the +X axis direction side is connected to a core wire 291 of the cable 260. The protrusion 141 of the contact 140 fits into the recess 241 of the contact 240.

[0050] <Sleeve> The sleeve 250 includes a cylindrical first portion 251 and a cylindrical second portion 252. The first portion 251 is disposed on the -X axis direction side of the second portion 252. The outer diameter of the first portion 251 is smaller than the outer diameter of the second portion 252. The inner diameter of the first portion 251 is smaller than the inner diameter of the second portion 252.

[0051] The first portion 251 is disposed inside the GND shell 220. The first portion 251 covers the shield member 293 exposed from an end of the outer cover 294 of the cable 290. The second portion 252 covers the outer cover 294 of the cable 290. Therefore, the connection portion between the first portion 251 and the second portion 252 is located near the end of the outer cover 294.

[0052] <Cable> Cable 290 includes a core wire 291, a covering member 292, a shielding member 293, and an outer cover 294. The configurations and functions of core wire 291, covering member 292, shielding member 293, and outer cover 294 in cable 290 are similar to the configurations and functions of core wire 191, covering member 192, shielding member 193, and outer cover 194 in cable 190, respectively. However, the direction in which core wire 291 is connected to contact 240, the direction of the end face having the cut surface of covering member 292, the direction of the end and the folding back direction of shielding member 293, and the direction of the end face of outer cover 294, etc. are opposite to those of cable 190.

[0053] Next, the connection operation of the relay connector device 10 of the comparative example will be described. FIG. 6 is a cross-sectional view illustrating the connection operation of the connectors 100 and 200 in the relay connector device according to the comparative example. As shown in FIG. 1 and FIG. 6, in the relay connector device 10 of the comparative example, the connector 100 and the connector 200 face each other. Then, the convex portion 141 of the contact 140 is fitted into the concave portion 241 of the contact 240. As a result, a transmission path of a high-frequency signal is formed between the contact 140 and the contact 240. At that time, the first part 231 of the inner housing 230 is fitted into the concave portion 131 of the inner housing 130. Also, the GND shell 110 and the GND shell 210 come into contact with each other. As a result, a shield covering the transmission path of the high-frequency signal is formed.

[0054] <Issues in Comparative Examples> Fig. 7 is a perspective view illustrating the connector 200 in the relay connector device 10 according to the comparative example, and is an enlarged view of part VII in Fig. 3. As shown in Fig. 7, in the relay connector device 10 of the comparative example, the GND shell 210 in the connector 200 has a gap 211. In terms of manufacturing and assembly, the connector 200 is shaped so that the GND shell 210 covers the GND shell 220. For example, the GND shell 210 and the GND shell 220 are fitted into the GND shell 210 by utilizing elasticity that bends in the radial direction. As a result, the GND shell 210 and the GND shell 220 are electrically connected.

[0055] The connector 200 has a shape in which the gap 211 of the GND shell 210 is covered by the GND shell 220, but as shown in Fig. 7, it is difficult to completely cover the contacts 240 through which signals are transmitted, etc., with the GND shell 210 and the GND shell 220. For example, the inner housing 230, the other end of the contact 240 exposed from the inner housing 230, the covering member 292 exposed from the shielding member 293, and the core wire 291 exposed from the covering member 292 may be visible from the outside through the gap 211. This may cause noise to leak outside the connector 200, making it difficult to improve EMC.

[0056] <Embodiment 1> Next, a relay connector device according to embodiment 1 will be described. In this embodiment, the gap in the GND shell is covered with an EMI shell, thereby improving EMC.

[0057] Fig. 8 is a cross-sectional view illustrating the relay connector device 30 according to the first embodiment. Fig. 9 is a perspective view illustrating a connector 300 in the relay connector device 30 according to the first embodiment. Fig. 10 is a perspective view illustrating a connector 400 in the relay connector device 30 according to the first embodiment. In Figs. 8 to 10, the external housing is omitted. Note that the relay connector device 30 may be used separately from the external housing.

[0058] As shown in Figs. 8 to 10, the relay connector device 30 according to this embodiment includes a connector 300 and a connector 400. The connector 300 is, for example, a male connector, and the connector 400 is, for example, a female connector. The connector 300 is connected to an end of a cable 390. The connector 400 is connected to an end of a cable 490. The connector 300 is connected to the connector 400. In this way, the relay connector device 30 connects the cable 390 and the cable 490.

[0059] <Male connector> FIG. 11 is an exploded perspective view illustrating each member constituting the connector 300 in the relay connector device 30 according to the first embodiment. As shown in FIGS. 8 to 9 and 11, the connector 300 includes a GND shell 310, an inner housing 330, a contact 340, a sleeve 350, an impedance adjustment member 360, an EMI shell 370, and an outer housing 380. The basic configurations and functions of the GND shell 310, the inner housing 330, the contact 340, the sleeve 350, and the outer housing 380 in the connector 300 are similar to the configurations and functions of the GND shells 110 and 120, the inner housing 130, the contact 140, the sleeve 150, and the outer housing 180 in the connector 100. Note that the connector 300 does not necessarily include the impedance adjustment member 360.

[0060] <GNDシェル> The GND shell 310 corresponds to an integrated configuration of the GND shells 110 and 120 in the connector 100. An inner housing 330, a contact 340, and an impedance adjusting member 360 are disposed inside the GND shell 310. A sleeve 350 and a part of a cable 390 are also disposed inside the GND shell 310. The GND shell 310 has a portion that covers at least a part of the inner housing 330. The inner housing 330 may be press-fitted into the GND shell 310.

[0061] An end portion on the +X-axis direction side of the GND shell 310 is disposed near an end portion on the +X-axis direction side of the internal housing 330. On the other hand, an end portion on the -X-axis direction side of the GND shell 310 is located on the outer cover 394 of the cable 390. The end portion on the -X-axis direction side of the GND shell 310 may coincide with the end portion on the -X-axis direction side of the sleeve 350 in position on the X-axis.

[0062] <Inner housing> The internal housing 330 may incorporate a portion of the impedance adjustment member 360. For example, a portion of the internal housing 330 on the -X axis direction side incorporates a portion of the impedance adjustment member 360 on the +X axis direction side. If the connector 300 does not include the impedance adjustment member 360, the internal housing 330 does not need to incorporate the impedance adjustment member 360.

[0063] The internal housing 330 is disposed inside the GND shell 310. The contact 340 is disposed inside the internal housing 330. The internal housing 330 supports the contact 340 inside. A recess 331 is formed on an end face on the +X axis direction side of the internal housing 330. One end of the contact 340 on the +X axis direction side is exposed from a bottom surface of the recess 331. Thus, the internal housing 330 supports the contact 340 inside such that one end of the contact 340 is exposed. One end of the contact 340 on the +X axis direction side includes a protrusion 341. A side wall of the recess 331 of the internal housing 330 surrounds the protrusion 341 on the +X axis direction side of the contact 340.

[0064] An end portion on the -X axis direction side of the internal housing 330 is located near an end portion on the -X axis direction side of the contact 340. For example, the end portion on the -X axis direction side of the internal housing 330 may coincide with the other end of the end portion on the -X axis direction side of the contact 340 at a position on the X axis. A core wire 391 of a cable 390 is connected to the end portion on the -X axis direction side of the contact 340. A connection portion between the contact 340 and the core wire 391 may be disposed inside the internal housing 330.

[0065] <Contact> The contact 340 includes a protrusion 341 at one end on the +X axis direction side. One end of the contact 340 on the +X axis direction side is connected to a contact 440 of the female connector 400. The protrusion 341 on the +X axis direction side of the contact 340 is convex so as to fit into the contact 440. The other end of the contact 340 on the -X axis direction side is connected to a core wire 391 of the cable 390.

[0066] <Sleeve> The sleeve 350 includes a cylindrical first portion 351 and a cylindrical second portion 352. The first portion 351 is disposed inside the GND shell 310. The first portion 351 covers the shielding member 393 exposed from an end of an outer cover 394 of the cable 390. The second portion 352 covers the outer cover 394 of the cable 390. Thus, the connection portion between the first portion 351 and the second portion 352 is located near the end of the outer cover 394.

[0067] <Impedance adjustment material> The impedance adjustment member 360 has a portion incorporated in the internal housing 330. Specifically, for example, a portion of the impedance adjustment member 360 on the +X axis direction side is incorporated in a portion of the internal housing 330 on the -X axis direction side. The impedance adjustment member 360 may be incorporated in the internal housing 330 by insert molding. Alternatively, the impedance adjustment member 360 may be incorporated in the internal housing 330 by being press-fitted into the internal housing 330.

[0068] The impedance adjustment member 360 includes a conductor. The impedance adjustment member 360 includes, for example, a metal as a material. The impedance adjustment member 360 may include a material other than a metal as long as it includes a conductor. The impedance adjustment member 360 may be electrically disconnected from the contact 340 and the core wire 391, which are the transmission path of the high-frequency signal line, and may be electrically disconnected from the ground potential. In other words, the impedance adjustment member 360 may be at a hollow ground potential that is not directly connected to other conductors. This makes it possible to reduce the impedance near the air-containing space layer 395 in the relay connector device 30 and improve impedance matching while eliminating the need for a circuit that connects the impedance adjustment member 360 to other conductors.

[0069] The impedance adjustment member 360 may be electrically connected to the ground potential. For example, the impedance adjustment member 360 may be electrically set to the ground potential by being connected to the GND shell 310. This can reduce the impedance in the vicinity of the spatial layer 395 containing air in the relay connector device 30, and improve impedance matching.

[0070] The impedance adjustment member 360 has a tubular shape. The impedance adjustment member 360 has, for example, a cylindrical shape. The impedance adjustment member 360 is disposed so that the central axis is in the X-axis direction. Thus, the impedance adjustment member 360 has a tubular shape with the central axis positioned in the contact 340 and the core 391 of the cable 390.

[0071] As long as the impedance adjustment member 360 has a cylindrical shape, it may have a square cylindrical shape or a square cylindrical shape with rounded corners. It may also have a cylindrical shape in which a plurality of members are joined together into a cylindrical shape, or the cylindrical shape may have a notch in part. The impedance adjustment member 360 surrounds the contact 340 and the core wire 391 around the central axis, thereby adjusting the impedance and improving impedance matching.

[0072] The impedance adjustment member 360 is disposed inside the GND shell 310 together with the internal housing 330 and the contacts 340. An end of the impedance adjustment member 360 on the +X-axis direction side is located inside the internal housing 330. An end of the impedance adjustment member 360 on the -X-axis direction side is located on the covering member 392 of the cable 390. An end of the covering member 392 of the cable 390 on the +X-axis direction side is a cut surface. Thus, the impedance adjustment member 360 covers the end of the covering member 392. This allows the impedance adjustment member 360 to cover the exposed portion of the core wire 391.

[0073] In this way, the impedance adjusting member 360 covers the exposed portion of the core wire 391 connected to the contact 340 that is exposed from the internal housing 330. A space layer 395 is formed between the exposed portion of the core wire 391 connected to the contact 340 that is exposed from the internal housing 330 and the GND shell 310. The impedance adjusting member 360 is disposed in the space layer 395 formed between such an exposed portion and the GND shell 310.

[0074] <EMIシェル> The EMI shell 370 includes a conductor as a material. The EMI shell 370 includes, for example, a metal as a material. Note that the EMI shell 370 may include a material other than a metal as long as it includes a conductor. The EMI shell 370 has a semi-cylindrical shape. The EMI shell 370 is joined to the GND shell 310. As a result, the EMI shell 370 is electrically connected to the ground potential. The EMI shell 370 covers a part of the GND shell 310. For example, the EMI shell 370 covers the gap 311 of the GND shell 310. Thus, the EMI shell 370 has a part that covers the gap 311 of the GND shell 310. Details of the EMI shell 370 will be described later together with the EMI shell 470 of the connector 400.

[0075] <External housing> The outer housing 380 has an assembly of the GND shell 310, the inner housing 330, the contacts 340, the sleeve 350, the impedance adjustment member 360 and the EMI shell 370 attached thereto.

[0076] <Cable> Cable 390 includes a core wire 391, a covering member 392, a shielding member 393, and an outer cover 394. The configurations and functions of core wire 391, covering member 392, shielding member 393, and outer cover 394 in cable 390 are similar to the configurations and functions of core wire 191, covering member 192, shielding member 193, and outer cover 194 in cable 190, respectively.

[0077] <Female connector> Next, the female connector 400 will be described. Fig. 12 is an exploded perspective view illustrating each member constituting the connector 400 in the relay connector device 30 according to the first embodiment. As shown in Figs. 8, 10 and 12, the connector 400 includes a GND shell 410, an inner housing 430, a contact 440, a sleeve 450, an impedance adjusting member 460, an EMI shell 470 and an outer housing 480.

[0078] In the case of connector 300, cable 390 is located on the −X-axis direction side of connector 300, whereas in the case of connector 400, cable 490 is located on the +X-axis direction side of connector 400. Other than this, basic configurations and functions of GND shell 410, inner housing 430, contacts 440, sleeve 450, impedance adjustment member 460, EMI shell 470, and outer housing 480 of connector 400 are similar to the configurations and functions of GND shell 310, inner housing 330, contacts 340, sleeve 350, impedance adjustment member 360, EMI shell 370, and outer housing 380 of connector 300, respectively.

[0079] <GNDシェル> An inner housing 430, a contact 440, and an impedance adjusting member 460 are disposed inside the GND shell 410. A sleeve 450 and a part of a cable 490 are also disposed inside the GND shell 410. The inner housing 430 may be press-fitted into the GND shell 410.

[0080] An end portion on the -X axis direction side of the GND shell 410 is disposed near an end portion on the -X axis direction side of the internal housing 430. On the other hand, an end portion on the +X axis direction side of the GND shell 410 is located on the outer cover 494 of the cable 490. The end portion on the +X axis direction side of the GND shell 410 may coincide with the end portion on the +X axis direction side of the sleeve 450 in position on the X axis.

[0081] <Inner housing> The +X-axis direction side portion of the internal housing 430 incorporates the -X-axis direction side portion of the impedance adjustment member 460. The internal housing 430 is disposed inside the GND shell 410. The contact 440 is disposed inside the internal housing 430. Thus, the internal housing 430 supports the contact 440 therein such that one end of the contact 440 is exposed.

[0082] The inner housing 430 includes a first portion 431 and a second portion 432. The first portion 431 is disposed on the -X-axis direction side of the second portion 432. The first portion 431 and the second portion 432 are cylindrical with the central axis of the inner housing 430 as the central axis. The outer diameter of the first portion 431 is smaller than the outer diameter of the second portion 432. The first portion 431 fits into a recess 331 in the inner housing 330 of the connector 300. When the first portion 431 fits into the recess 331, the protrusion 341 in the contact 340 of the connector 300 fits into the recess 441 in the contact 440 of the connector 400.

[0083] An end portion on the -X axis direction side of the internal housing 430 forms an end face on the -X axis direction side of the first portion 431. The end portion on the -X axis direction side of the internal housing 430 is located near the end portion on the -X axis direction side of the GND shell 410. For example, the end portion on the -X axis direction side of the internal housing 430 may coincide with the position on the X axis of the end portion on the -X axis direction side of the GND shell 410. A recess 441 on the -X axis direction side of the contact 440 is disposed inside the first portion 431.

[0084] An end portion of the internal housing 430 on the +X axis direction side is located near an end portion of the contact 440 on the +X axis direction side. For example, the end portion of the internal housing 430 on the +X axis direction side may coincide with the other end of the contact 440 on the +X axis direction side in position on the X axis. A core wire 491 of a cable 490 is connected to the end portion of the contact 440 on the +X axis direction side. A connection portion between the contact 440 and the core wire 491 of the cable 490 may be disposed inside the internal housing 430.

[0085] <Contact> The contact 440 includes a recess 441 at one end on the -X axis direction side. The contact 440 is disposed inside the inner housing 430. An end of the contact 440 on the +X axis direction side is connected to a core wire 491 of a cable 490. The protrusion 341 of the contact 340 in the male connector 300 fits into the recess 441 of the contact 440 in the female connector 400.

[0086] <Sleeve> The sleeve 450 includes a cylindrical first portion 451 and a cylindrical second portion 452. The first portion 451 is disposed on the -X axis direction side of the second portion 452. The outer diameter of the first portion 451 is smaller than the outer diameter of the second portion 452. The inner diameter of the first portion 451 is smaller than the inner diameter of the second portion 452.

[0087] The first portion 451 is disposed inside the GND shell 410. The first portion 451 covers the shield member 493 exposed from an end of the outer cover 494 of the cable 490. The second portion 452 covers the outer cover 494 of the cable 490. Therefore, the connection portion between the first portion 451 and the second portion 452 is located near the end of the outer cover 494.

[0088] <Impedance adjustment material> The impedance adjustment member 460 has a portion incorporated in the internal housing 430. Specifically, for example, a portion on the −X-axis direction side of the impedance adjustment member 460 is incorporated in a portion on the +X-axis direction side of the internal housing 430.

[0089] The impedance adjustment member 460 is disposed inside the GND shell 410 together with the internal housing 430 and the contacts 440. An end portion of the impedance adjustment member 460 on the -X-axis direction side is located inside the internal housing 430. An end portion of the impedance adjustment member 460 on the +X-axis direction side is located on the covering member 492 of the cable 490. An end portion of the covering member 492 of the cable 490 on the -X-axis direction side is a cut surface. Thus, the impedance adjustment member 460 covers the end portion of the covering member 492.

[0090] The impedance adjusting member 460 covers an exposed portion of the core wire 491 connected to the contact 440 that is exposed from the internal housing 430. A space layer 495 is formed between the exposed portion of the core wire 491 connected to the contact 440 that is exposed from the internal housing 430 and the GND shell 410. The impedance adjusting member 460 is disposed in the space layer 495 formed between such an exposed portion and the GND shell 410.

[0091] <EMIシェル> The EMI shell 470 is joined to the GND shell 410 and covers a portion of the GND shell 410. For example, the EMI shell 470 has a portion that covers the gap 411 of the GND shell 410. The configuration and function of the EMI shell 470 are similar to those of the EMI shell 370. The EMI shell 370 and the EMI shell 470 will be described in detail below.

[0092] Fig. 13 is a perspective view illustrating an EMI shell 470 in the relay connector device 30 according to the embodiment 1. As shown in Fig. 13, the EMI shell 470 has a semi-cylindrical shape. The central axis of the EMI shell 470 is disposed in the X-axis direction.

[0093] The EMI shell 470 may include a first portion 471 and a second portion 472. The first portion 471 has a semi-cylindrical shape with a part of the side surface cut off. For example, a cross section perpendicular to the central axis of the first portion 471 includes a U-shape or a horseshoe shape. The second portion 472 also has a semi-cylindrical shape with a part of the side surface cut off. For example, a cross section perpendicular to the central axis of the second portion 472 also includes a U-shape or a horseshoe shape. The first portion 371 and the second portion 372 are integrally molded. Note that a portion of the first portion 371 on the +X-axis direction side and a portion of the second portion 372 on the -X-axis direction side may be connected.

[0094] FIG. 14 is a side view illustrating the connector 400 in a state where the EMI shell 470 is removed in the relay connector device 30 according to the first embodiment. FIG. 15 is a perspective view illustrating the connector 400 in a state where the EMI shell 470 is removed in the relay connector device 30 according to the first embodiment. FIG. 16 is a cross-sectional perspective view illustrating the connector 400 in a state where the EMI shell 470 is removed in the relay connector device 30 according to the first embodiment. FIG. 17 is a side view illustrating the connector 400 in the relay connector device 30 according to the first embodiment, showing a state where the EMI shell 470 is transparent. FIG. 18 is a cross-sectional view illustrating the connector 400 in the relay connector device 30 according to the first embodiment, showing a cross-section of XVIII in FIG. 10. FIG. 19 is a cross-sectional view illustrating the connector 400 in the relay connector device 30 according to the first embodiment, showing a cross-section of XIX in FIG. 10.

[0095] As shown in FIGS. 13 to 19, the EMI shell 470 covers the GND shell 410, the inner housing 430, the contacts 440, the sleeve 450, the core wires 491 of the cable 490, the covering member 492, and the shielding member 493 from the outside. The first portion 471 covers the inner housing 430 via the GND shell 410. That is, the first portion 471 covers the portion of the GND shell 410 that covers the inner housing 430. The second portion 472 covers the sleeve 450 via the GND shell 410. That is, the second portion 472 covers the portion of the GND shell 410 that covers the sleeve 450. An end portion of the EMI shell 470 on the +X-axis direction side is located on the GND shell 410. An end portion of the EMI shell 470 on the -X-axis direction side is also located on the GND shell 410.

[0096] As shown in Figs. 14 to 16, in a state where the EMI shell 470 is removed, a gap 411 is formed in the shell of the GND 410, as in the relay connector device 10 of the comparative example. Meanwhile, as shown in Fig. 17, the EMI shell 470 covers such a gap 411 in the GND shell 410. The EMI shell 470 covers at least one of the inner housing 430, the other end of the contact 440 exposed from the inner housing 430, and the core wire 491 connected to the other end of the contact 440, in the gap 411 in the GND shell 410. In addition, the EMI shell 470 may cover at least one of the inner housing 430, the contact 440 exposed from the inner housing 430, the covering member 492 exposed from the shielding member 493, and the core wire 491 exposed from the covering member 492, in the gap 411 in the GND shell 410. With such a configuration, the EMI shell 470 can suppress leakage of noise to the outside.

[0097] 14 and 15, the GND shell 410 has holding portions 413 and 414. The holding portion 413 is provided on the outer surface of a portion of the GND shell 410 that covers the internal housing 430. The holding portion 414 is provided on the outer surface of a portion of the GND shell 410 that covers the sleeve 450. The holding portion 413 and the holding portion 414 are, for example, concave-shaped. Note that the holding portion 413 and the holding portion 414 may be convex-shaped as long as they are shaped to fit with the holding portions 473 and 474 of the EMI shell 470, respectively.

[0098] The holding portion 414 of the GND shell 410 may be formed when the GND shell 410 covering the sleeve 450 is crimped. For example, the portion of the GND shell 410 covering the sleeve 450 is crimped. At this time, the portion of the GND shell 410 covering the sleeve 450 is compressed in the Z-axis direction, and both sides in the Y-axis direction are depressed to form the concave holding portion 414. In this way, the GND shell 410 may have the holding portion 414 formed by crimping.

[0099] 13, the EMI shell 470 has holding portions 473 and 474. The holding portion 473 is provided on the inner surface of the first portion 471 of the EMI shell 470. The holding portion 474 is provided on the lower end of the second portion 472.

[0100] 17 to 19, the holding portion 473 fits into the holding portion 413 of the GND shell 410. The holding portion 474 fits into the holding portion 414 of the GND shell 410. This enables the connector 400 to hold the EMI shell 470 on the GND shell 410.

[0101] The width of the first portion 471 in the EMI shell 470 in a predetermined direction perpendicular to the X-axis direction may be different from the width of the second portion 472 in the predetermined direction. The predetermined direction is, for example, the Z-axis direction. For example, the outer diameter of the portion of the GND shell 410 covering the internal housing 430 is larger than the outer diameter of the portion of the GND shell 410 covering the sleeve 450. The portion of the GND shell 410 covering the sleeve 450 is crimped as described above. Therefore, the width of this portion in the Z-axis direction is smaller than the width of the portion of the EMI shell 470 covering the internal housing 430. Therefore, in the EMI shell 470, the width of the first portion 471 in the Z-axis direction is larger than the width of the second portion 472 in the Z-axis direction.

[0102] If the outer diameter of the portion of GND shell 410 covering sleeve 450 is larger than the outer diameter of the portion of GND shell 410 covering internal housing 430, the width in the Z-axis direction of first portion 471 of EMI shell 470 may be smaller than the width in the Z-axis direction of second portion 472. If the outer diameter of the portion of GND shell 410 covering sleeve 450 is the same as the outer diameter of the portion of GND shell 410 covering internal housing 430, the width in the Z-axis direction of first portion 471 of EMI shell 470 may be the same as the width in the Z-axis direction of second portion 472.

[0103] Although the EMI shell 470 of the connector 400 has been described, the same applies to the EMI shell 370 of the connector 300.

[0104] FIG. 20 is a perspective view illustrating the connector 400 in the relay connector device 30 according to the first embodiment. FIG. 20 shows the position of laser welding by the laser LS. As shown in FIG. 20, the EMI shell 470 is joined to the GND shell 410. By joining the EMI shell 470 to the GND shell 410, the electrical connection can be improved. Therefore, the EMI shell 470 can be reliably set to the ground potential. For example, the EMI shell 470 may be joined to the GND shell 410 by laser welding by the laser LS. By performing laser welding, the time required for joining the EMI shell 470 can be shortened. The EMI shell 470 is preferably joined to the GND shell 410 near the edge of the EMI shell 470 on the -X axis direction side. Specifically, the EMI shell 470 is preferably joined to the GND shell 410 near the edge of the first portion 471 on the -X axis direction side. This allows the potential of the EMI shell 470 to approach the ground potential, thereby improving EMC.

[0105] <External housing> The outer housing 480 has an assembly of the GND shell 410, the inner housing 430, the contacts 440, the sleeve 450, the impedance adjusting member 460 and the EMI shell 470 attached thereto.

[0106] <Cable> Cable 490 includes a core wire 491, a covering member 492, a shielding member 493, and an outer cover 494. The configurations and functions of core wire 491, covering member 492, shielding member 493, and outer cover 494 in cable 490 are similar to the configurations and functions of core wire 391, covering member 392, shielding member 393, and outer cover 394 in cable 390. However, the direction in which core wire 491 is connected to contact 440, the direction of the end face having the cut surface of covering member 492, the direction of the end and the folding back direction of shielding member 493, and the direction of the end face of outer cover 494, etc. are opposite to those of cable 390.

[0107] Next, the connection operation of the relay connector device 30 of this embodiment will be described. FIG. 21 is a cross-sectional view illustrating the connection operation of the connectors 300 and 400 in the relay connector device 30 according to the first embodiment. As shown in FIG. 8 and FIG. 21, in the relay connector device 30 of this embodiment, the connector 300 and the connector 400 face each other. Then, the convex portion 341 of the contact 340 is fitted into the concave portion 441 of the contact 440. As a result, a transmission path of a high-frequency signal is formed between the contact 340 and the contact 440. At that time, the first part 431 of the internal housing 430 is fitted into the concave portion 331 of the internal housing 330. Also, the GND shell 310 and the GND shell 410 come into contact with each other. The EMI shells 370 and 470 cover the gap 311 of the GND shell 310 and the gap 411 of the GND shell 410, respectively. As a result, a shield covering the transmission path of a high-frequency signal is formed.

[0108] Next, the effects of this embodiment will be described. The relay connector device 30 of the embodiment includes EMI shells 370 and 470. The EMI shells 370 and 470 cover the gap 311 of the GND shell 310 and the gap 411 of the GND shell 410, respectively. This can improve EMC.

[0109] FIG. 22 is a graph illustrating EMI (Electromagnetic Interference) characteristics in the relay connector device 30 according to the first embodiment, where the horizontal axis indicates the frequency of the signal and the vertical axis indicates the magnitude of the signal in decibels (dB). As shown in FIG. 22, in which the EMI characteristics are better as the magnitude of the vertical axis decreases, the EMI characteristics of the relay connector device 30 according to the first embodiment, which is provided with the EMI shells 370 and 470, are better than the EMI characteristics of the relay connector device 10 of the comparative example, which is not provided with the EMI shells 370 and 470. In the following, unless otherwise specified, the EMI shells 370 and 470 will be referred to as the EMI shell 370, etc. In addition, in order to correspond to the figure, the EMI shells 370 and 470 may also be referred to as the EMI shell 470, etc. Other members of the connector 300 and the connector 400 may also be referred to in abbreviated form.

[0110] FIG. 23 is a diagram illustrating noise leakage to the outside in the relay connector device 10 according to the comparative example. FIG. 24 is a diagram illustrating noise leakage to the outside in the relay connector device 30 according to the first embodiment. As shown in FIG. 23, in the relay connector device 10 of the comparative example in which the EMI shell 370 and the like are not provided, there is a large amount of noise leakage to the outside. In contrast, as shown in FIG. 24, in the relay connector device 30 of the first embodiment in which the EMI shell 370 and the like are provided, the EMI shell 370 and the like suppress noise leakage to the outside. This can improve the EMI characteristics.

[0111] The EMI shells 370 and 470 are respectively joined to the GND shells 310 and 410. Therefore, the EMI shells 370 and the like can be reliably set to the ground potential.

[0112] The EMI shell 370, etc. may be joined to the GND shell 310, etc. by laser welding. By laser welding, the time required for joining the EMI shell 370, etc. can be shortened, and the time required for manufacturing the relay connector device 30 can be shortened. The EMI shells 370 and 470 are joined near the edges of the +X-axis direction side of the GND shell 310 and the -X-axis direction side of the GND shell 410, respectively. This allows the potential of the EMI shell 370, etc. to be closer to the ground potential, thereby improving EMC.

[0113] The width of the first portion 471 of the EMI shell 470 or the like in a predetermined direction perpendicular to the coaxial direction is different from the width of the second portion 472 in the predetermined direction. For example, the portion of the GND shell 410 or the like that covers the sleeve 450 is made thinner than the portion of the GND shell 410 or the like that covers the internal housing 430 by crimping. As a result, the width of the second portion 472 of the EMI shell 470 or the like in the Z-axis direction is smaller than the width of the first portion 471 in the Z-axis direction. In this way, since the thickness of the EMI shell 370 or the like is changed according to the thickness of the GND shell 310 or the like, the gap 311 or the like can be efficiently blocked, and EMC can be improved.

[0114] The GND shell 410 etc. has holding parts 413 and 414, and the EMI shell 470 etc. has holding parts 473 and 474. The holding parts 413 and 414 are fitted into the holding parts 473 and 474. This makes it possible to strengthen the connection between the GND shell 410 etc. and the EMI shell 470 etc. The holding parts 414 of the GND shell 410 etc. may be formed by crimping. This allows the formation of the holding parts 414 and the crimping of the GND shell 410 etc. to be performed simultaneously, thereby shortening the manufacturing process. In addition, the width of the second part 472 of the EMI shell 470 is adjusted to the width of the GND shell 410 after crimping, so that the gap 411 of the GND shell 410 can be efficiently blocked.

[0115] The impedance adjusting member 360 etc. are incorporated in the internal housing 330 etc. Therefore, the size and shape of the impedance adjusting member 360 etc. can be fixed, and the stability of the impedance can be improved.

[0116] The impedance adjusting member 360 etc. in the relay connector device 30 of this embodiment are arranged in a space layer 395 etc. formed between the exposed portion of the core wire 391 etc. and the GND shell 310 etc. This makes it possible to suppress an increase in impedance in the core wire 391 etc. of the cable 390 etc. exposed to the space layer 395 etc. containing air. This makes it possible to further improve impedance matching.

[0117] The impedance adjusting member 360 etc. has a cylindrical shape with its central axis positioned at the contacts 340 etc. and the core wire 391 etc. Therefore, it is possible to isotropically cover the contacts 340 etc. and the core wire 391 etc., and it is possible to uniformly adjust the impedance.

[0118] The impedance adjustment member 360 etc. may be incorporated into the internal housing 330 etc. by insert molding. This allows the impedance adjustment member 360 etc. to be firmly fixed to the internal housing 330 etc. On the other hand, the impedance adjustment member 360 etc. may be incorporated into the internal housing 330 etc. by being press-fitted into the internal housing 330 etc. This allows the impedance adjustment member 360 etc. to be easily incorporated into the internal housing 330 etc.

[0119] Although the embodiment of the present invention has been described above, the present disclosure includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited to the above-mentioned embodiment. In addition, the configurations in the comparative example and the embodiment may be appropriately combined. [Explanation of symbols]

[0120] 10, 30 Relay connector device 100, 200, 300, 400 Connectors 110, 210, 310, 410 GND shell 120, 220 GND shell 130, 230, 330, 430 Inner Housing 131, 331 recess 140, 240, 340, 440 Contact 141, 341 convex part 150, 250, 350, 450 sleeve 151, 251, 351, 451 Part 1 152, 252, 352, 452 2nd part 180, 280, 380, 480 Outer Housing 190, 290, 390, 490 Cable 191, 291, 391, 491 core wire 192, 292, 392, 492 Covering material 193, 293, 393, 493 Shielding materials 194, 294, 394, 494 Outer cover 211 Gap 231, 431 Part 1 232, 432 Part 2 241, 441 recess 311, 411 Gap 360, 460 Impedance adjustment material 370, 470 EMI shell 395, 495 spatial layer 413, 414 Holding part 471 Part 1 472 Part 2 473, 474 Holding part

Claims

1. A coaxial cable connector for connecting a cable, an axially extending contact including a conductive material; an insulator that contains an insulating material as the material and supports the contact such that one end of the contact is exposed; a GND shell including the conductor as a material and having a portion covering at least a portion of the insulator; an EMI shell including the conductor as a material and having a portion covering the gap of the GND shell; Equipped with The EMI shell comprises: At least one of the insulator, the contact exposed from the insulator, and the core wire connected to the other end of the contact in the cable is covered in the gap. Coaxial cable connector.

2. The cable includes: the core wire including the conductor as the material and connected to the other end of the contact; a covering member including the insulator as the material and having a portion covering the core wire; a shielding member including the conductor as a material and having a portion that covers the covering member; an outer cover including the insulator as a material and having a portion covering the shield member; Including, The EMI shell comprises: At least one of the insulator, the contact exposed from the insulator, the covering member exposed from the shielding member, and the core wire exposed from the covering member and connected to the other end of the contact is covered in the gap.

2. The coaxial cable connector according to claim 1.

3. a sleeve having a portion covering the shield member exposed from the outer cover; The EMI shell comprises: a first portion covering the insulator via the GND shell; a second portion covering the sleeve via the GND shell; Including, A width of the first portion in a predetermined direction perpendicular to the axial direction is different from a width of the second portion in the predetermined direction.

3. The coaxial cable connector according to claim 2.

4. The GND shell has a first holding portion, The EMI shell has a second holding portion that fits into the first holding portion.

2. The coaxial cable connector according to claim 1.

5. The GND shell has a first holding portion formed by caulking, The second portion of the EMI shell has a second retaining portion that fits into the first retaining portion.

4. The coaxial cable connector according to claim 3.

6. The EMI shell is joined to the GND shell.

2. The coaxial cable connector according to claim 1.

7. The EMI shell is joined to the GND shell by laser welding.

7. The coaxial cable connector according to claim 6.

8. The EMI shell is joined to the GND shell near an edge of one end of the EMI shell.

7. The coaxial cable connector according to claim 6.

Images