Electrical connector, cable harness, and method for assembling the cable harness

Abstract

This electric connector 100 is attached to a terminal of a coaxial cable 10 and is connected to a counterpart connector 20, the electric connector 100 comprising: an electroconductive signal contact 200 that is connected to a central conductor 11 of the coaxial cable 10 and makes contact with a counterpart signal contact 21; an electroconductive shell 300 that accommodates the signal contact 200, is connected to an external conductor 13 of the coaxial cable 10, and fits with a counterpart shell 22 of the counterpart connector 20 along a fitting direction; and an insulating housing 400 that is disposed between the signal contact 200 and the shell 300, the housing 400 having a first housing 500 and a second housing 600 that is separate from the first housing 500 and overlaps the first housing 500 in the fitting direction, and the signal contact 200 being disposed between the first housing 500 and the second housing 600.

Description

[Technical Field]

[0001] TECHNICAL FIELD The present disclosure relates to electrical connectors, cable harnesses, and methods for assembling cable harnesses. [Background technology]

[0002] Patent Document 1 discloses a coaxial connector having contacts, a shell, and a body made of insulating resin. The body has a main body and a body bending portion that can be bent relative to the main body. The contacts are arranged between the main body and the bent body bending portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-157113 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides an electrical connector that is effective in improving characteristic impedance. [Means for solving the problem]

[0005] [1] An electrical connector according to one aspect of the present disclosure is an electrical connector attached to an end of a coaxial cable having a center conductor and an outer conductor, and connected to a mating connector having a mating signal contact and a mating shell, the electrical connector comprising: a conductive signal contact connected to the center conductor and contacting the mating signal contact; a conductive shell accommodating the signal contact, connected to the outer conductor, and mating with the mating shell along a mating direction; and an insulating housing disposed between the signal contact and the shell, the housing having a first housing and a second housing separate from the first housing and overlapping with the first housing along the mating direction, the signal contact being disposed between the first housing and the second housing.

[0006] Because the first and second housings are separate, it is possible to connect the center conductors to the signal contacts and then arrange the signal contacts between the first and second housings. This allows the center conductors to be connected to the signal contacts under stable conditions without being restricted by the first and second housings. Furthermore, by making the first and second housings separate, the shapes and sizes of the respective housings can be freely adjusted, allowing for flexible adjustment of the arrangement of the signal contacts within the shell. Because the first and second housings overlap in the mating direction, only one of the first and second housings needs to be mated with the mating connector. Therefore, even though the first and second housings are separate, the arrangement of the signal contacts relative to the mating connector is stable. Therefore, this electrical connector is effective in improving characteristic impedance.

[0007] [2] In the above [1], the signal contact may have a base plate extending in a direction perpendicular to the mating direction, the base plate including a first surface facing the mating connector and a second surface opposite the first surface, the first housing facing the first surface, and the second housing facing the second surface, which can further stabilize the arrangement of the signal contact between the first housing and the second housing.

[0008] [3] In the above [2], the shell has a mating portion that mates with the mating shell, the first housing has a first retaining portion located inside the outer edge of the mating portion as viewed from the mating direction, and a second retaining portion located outside the outer edge of the mating portion as viewed from the mating direction, and the second housing may overlap both the first retaining portion and the second retaining portion, improving workability when overlapping the second housing onto the first housing.

[0009] [4] In the above [3], the thickness of the second housing in the mating direction may be 80% or more of the thickness of the first housing, which allows for further optimization of the arrangement of the signal contacts within the shell.

[0010] [5] In any of the above [2] to [4], the second housing may include a cavity that opens toward the signal contact. The fact that the second housing is separate from the first housing can be effectively utilized to freely form the cavity that opens toward the signal contact.

[0011] [6] In the above [5], the signal contact may have a first portion and a second portion aligned along a current path from the center conductor to the mating signal contact, and the difference between the capacitance between the first portion and the shell and the capacitance between the second portion and the shell may be reduced by forming a cavity. The cavity can be effectively used to improve the characteristic impedance.

[0012] [7] In any of the above [3] to [6], the signal contact may further have a contact portion held by the first holding portion and adapted to contact a mating signal contact, the contact portion including a contact base connected to the base plate and a contact piece bent relative to the contact base so as to protrude from the first surface and to contact the mating signal contact, and the second housing may include a cavity opening toward the contact base. The cavity allows for appropriate adjustment of the capacitance between the contact portion and the shell. The cavity also allows for greater room for deformation of the contact base, allowing the contact piece to smoothly contact the mating contact.

[0013] [8] In the above [7], the signal contact may further have an extension plate extending from the contact base in a direction away from the base plate, and the second housing may contact both the base plate and the extension plate. This makes it easy to achieve both the retention strength of the contact portion and the deformation margin of the contact base.

[0014] [9] In any of the above [3] to [8], the signal contact may further have a connecting portion held by the second holding portion and connected to the center conductor, and the second housing may include a cavity opening toward the connecting portion. The cavity allows appropriate adjustment of the capacitance between the connecting portion and the shell. In addition, it is possible to easily form a space for arranging the center conductor connected to the connecting portion.

[0015]

[10] In the above [9], the cavity may be further open in a direction away from the connection portion, thereby providing a more sufficient space for arranging the central conductor connected to the connection portion.

[0016]

[11] In the above [9] or

[10] , the first housing may include a second cavity opening toward the connection portion. The second cavity allows for more appropriate adjustment of the capacitance between the connection portion and the shell. In addition, it makes it easy to form a space to absorb deformations or burrs that may occur in the connection portion due to the connection with the center conductor.

[0017]

[12] In any of the above [2] to

[11] , the first housing may include a first fitting portion, and the second housing may include a second fitting portion that fits with the first fitting portion. In this case, the second housing can be easily positioned relative to the first housing.

[0018]

[13] In the above

[12] , the first mating portion may be a convex portion, the second mating portion may be a concave portion that mates with the convex portion, and the first housing may include a claw portion formed on the convex portion so as to resist a force that pulls the first housing out of the shell in the mating direction. In the mating direction, the second housing resists a force that pushes the first housing into the shell. In the mating direction, the claw portion resists a force that pulls the first housing out of the shell. Therefore, the holding strength of the first housing in the mating direction can be improved.

[0019]

[14] A cable harness according to another aspect of the present disclosure includes the electrical connector according to any one of [1] to

[13] above and a coaxial cable, in which the central conductor is joined to the signal contact.

[0020]

[15] A method for assembling a cable harness according to one aspect of the present disclosure is a method for assembling a cable harness to be connected to a mating connector having a mating signal contact and a mating shell, the method including: joining a center conductor of a coaxial cable to a signal contact that contacts the mating signal contact; attaching the signal contact with the joined center conductor to an insulating first housing; overlapping the second housing on the first housing so that the signal contact is positioned between the first housing and an insulating second housing formed separately from the first housing; stacking the second housing and the first housing in a mating direction and accommodating them in a conductive shell that fits into the mating shell in a mating direction; and connecting the shell to the outer conductor of the coaxial cable. [Effects of the Invention]

[0021] According to the present disclosure, an electrical connector is provided that is effective in improving characteristic impedance. [Brief explanation of the drawings]

[0022] [Figure 1] FIG. 1 is a perspective view showing an example of a cable harness. [Figure 2] 2 is a perspective view of the cable harness of FIG. 1 as seen from another direction. [Figure 3] FIG. 2 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 4 is a perspective view of a signal contact in FIG. 3. [Figure 5] FIG. 5 is a plan view of the signal contact of FIG. 4. [Figure 6] FIG. 4 is a perspective view of the shell in FIG. 3 in a state before being folded. [Figure 7] FIG. 7 is a perspective view of the shell of FIG. 6, seen from another direction. [Figure 8] FIG. 4 is a perspective view of the first housing alone in FIG. 3. [Figure 9] 9 is a perspective view of the first housing of FIG. 8, seen from another direction. [Figure 10] FIG. 4 is a perspective view of the second housing alone in FIG. 3. [Figure 11] 11 is a perspective view of the second housing of FIG. 10 as seen from another direction. [Figure 12] FIG. 2 is a cross-sectional view taken along line XII-XII in FIG. [Figure 13] FIG. 2 is a cross-sectional view taken along line XIII-XIII in FIG. [Figure 14] FIG. 2 is a cross-sectional view taken along line XIV-XIV in FIG. [Figure 15] 2 is a cross-sectional view illustrating a state in which the connector in FIG. 1 is connected to a mating connector. [Figure 16] 2A to 2C are diagrams illustrating an example of an assembly procedure for the cable harness of FIG. 1. [Figure 17] 2A to 2C are diagrams illustrating an example of an assembly procedure for the cable harness of FIG. 1. [Figure 18] 2A to 2C are diagrams illustrating an example of an assembly procedure for the cable harness of FIG. 1. [Figure 19] 2A to 2C are diagrams illustrating an example of an assembly procedure for the cable harness of FIG. 1. [Figure 20] 2A to 2C are diagrams illustrating an example of an assembly procedure for the cable harness of FIG. 1. [Figure 21] 2A to 2C are diagrams illustrating an example of an assembly procedure for the cable harness of FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, the embodiments will be described in detail with reference to the drawings. In the description, the same elements or elements having the same functions are denoted by the same reference numerals, and redundant description will be omitted.

[0024] [Cable harness] The cable harness 1 according to this embodiment is used for transmitting high-frequency signals. Examples of high-frequency signals include, but are not limited to, RF (Radio Frequency) signals for wireless communication. Examples of wireless communication include, but are not limited to, communication using a fifth-generation mobile communication system (5G communication).

[0025] As shown in Figures 1, 2, and 3, the cable harness 1 includes a coaxial cable 10 and an electrical connector 100. The coaxial cable 10 includes a center conductor 11, a dielectric layer 12, an outer conductor 13, and a cable sheath 14. The center conductor 11 is a flexible conductive core wire. The outer conductor 13 is a conductive tubular body surrounding the center conductor 11. For example, the outer conductor 13 is formed in a mesh shape using thin metal wires and is flexible. The dielectric layer 12 is made of a dielectric material and provides insulation between the center conductor 11 and the outer conductor 13. The cable sheath 14 covers the outer conductor 13. The cable sheath 14 is made of an insulating material such as resin.

[0026] The electrical connector 100 is attached to the end of a coaxial cable 10. To attach the electrical connector 100, the coaxial cable 10 is formed with a portion where the center conductor 11 is exposed by removing the dielectric layer 12, outer conductor 13, and cable sheath 14, and a portion where the outer conductor 13 is exposed by removing the cable sheath 14, lined up in this order from the end of the coaxial cable 10. The electrical connector 100 is connected to a mating connector 20 having a mating signal contact 21 and a mating shell 22 (see FIG. 15 ). The mating connector 20 is attached to, for example, a circuit board 24, with the mating signal contact 21 electrically connected to the signal conductor of the circuit board 24 and the mating shell 22 electrically connected to the ground conductor of the circuit board 24.

[0027] The electrical connector 100 includes conductive signal contacts 200, a conductive shell 300, and an insulating housing 400. The signal contacts 200 are electrically connected to center conductors 11 and come into contact with mating signal contacts 21. To electrically connect the center conductors 11 and the signal contacts 200, the center conductors 11 may be solid-state welded to the signal contacts 200. Hereinafter, the direction along the central axis of the center conductor 11 welded to the signal contacts 200 will be referred to as the "extension direction D1," and the direction away from the center conductor 11 along the extension direction D1 will be referred to as the "forward" for convenience of explanation.

[0028] Solid-state bonding refers to joining materials to be joined together by bringing the materials to be joined together in a solid state and applying pressure or frictional force to the contact points. An example of solid-state bonding is ultrasonic bonding, in which pressure and ultrasonic vibrations are applied to the contact points while the materials to be joined are brought into contact with each other in a solid state. No material other than the materials to be joined (e.g., brazing material or solder) remains at the solid-state bonded points. Note that the method for joining the center conductor 11 and the signal contact 200 is not limited to solid-state bonding. The center conductor 11 and the signal contact 200 may also be joined by brazing or soldering.

[0029] The shell 300 accommodates the signal contacts 200, is electrically connected to the outer conductor 13, and is mated with the mating shell 22 of the mating connector 20 along the mating direction D2. Mating with the mating shell 22 along the mating direction D2 means that the movement direction for mating is along the mating direction D2. As an example, the mating direction D2 intersects (e.g., is perpendicular to) the extension direction D1. Hereinafter, when it is necessary to distinguish between orientations in the mating direction D2, the direction toward the mating shell 22 along the mating direction D2 will be referred to as "downward" for the sake of convenience, and the direction away from the mating shell 22 along the mating direction D2 will be referred to as "upward" for the sake of convenience.

[0030] The shell 300 has a mating portion 310 that mates with the mating shell 22. For example, the mating portion 310 has a ring shape (e.g., a circular ring shape) when viewed from the mating direction D2, and is mated to the outer periphery of the mating shell 22. The mating portion 310 does not necessarily have to surround the entire outer periphery of the mating shell 22, as long as it can maintain its state of being mated to the outer periphery of the mating shell 22. For example, the mating portion 310 may have a notch in part when viewed from the mating direction D2. When viewed from the mating direction D2, the notch of the mating portion 310 is located rearward of the center of the mating portion 310 (opposite the "forward" direction described above).

[0031] Viewing from the mating direction D2 means viewing from a viewpoint away from the electrical connector 100 along the mating direction D2. If the mating direction D2 is a vertical direction, viewing from above or below corresponds to an example of viewing from the mating direction D2. The same applies hereinafter.

[0032] 3, the housing 400 is disposed between the signal contacts 200 and the shell 300. The housing 400 includes an insulating first housing 500 and an insulating second housing 600. The second housing 600 is separate from the first housing 500 and overlaps the first housing 500 along the mating direction D2. The signal contacts 200 are disposed between the first housing 500 and the second housing 600.

[0033] Because the first housing 500 and the second housing 600 are separate bodies, it is possible to connect the center conductor 11 to the signal contact 200 and then arrange the signal contact 200 between the first housing 500 and the second housing 600. Therefore, the center conductor 11 can be connected to the signal contact 200 under stable conditions without being restricted by the first housing 500 and the second housing 600. Furthermore, because the first housing 500 and the second housing 600 are separate bodies, the shape and size of each housing can be freely adjusted, and the arrangement of the signal contact 200 within the shell 300 can be freely adjusted. Because the first housing 500 and the second housing 600 overlap along the mating direction D2, it is only necessary to mate either the first housing 500 or the second housing 600 with the mating connector 20 (it is not necessary to mate both the first housing 500 and the second housing 600 with the mating connector 20). Therefore, even if the first housing 500 and the second housing 600 are separate bodies, the arrangement of the signal contacts 200 relative to the mating connector 20 is stable. Therefore, the electrical connector 100 is effective in improving the characteristic impedance.

[0034] Separate means that they are formed without any physical connection to each other. As will be described later, in this embodiment, the second housing 600 and the first housing 500 can be fitted to each other. If the second housing 600 and the first housing 500 are not physically connected to each other before fitting, the second housing 600 and the first housing 500 are separate from each other even when the second housing 600 and the first housing 500 are fitted to each other.

[0035] The first housing 500 may have a first retaining portion 501 located inside the outer edge of the fitting portion 310 as viewed from the fitting direction D2, and a second retaining portion 502 located outside the outer edge of the fitting portion 310 as viewed from the fitting direction D2, and the second housing 600 may be configured to overlap both the first retaining portion 501 and the second retaining portion 502. For example, the second housing 600 has the first retaining portion 601 overlapping the first retaining portion 501 and the second retaining portion 602 overlapping the second retaining portion 502. This improves the ease of placing the second housing 600 on the first housing 500. As viewed from the fitting direction D2, the first retaining portion 501 and the second retaining portion 502 are aligned along the extension direction D1 and connected via a notch in the fitting portion 310.

[0036] When the fitting portion 310 has a cutout, being located inside the outer edge of the fitting portion 310 means being located inside a ring shape (hereinafter referred to as a "virtual ring shape") obtained by interpolating the cutout portion with an imaginary line extending the outer edge of the fitting portion 310. Being located outside the outer edge of the fitting portion 310 means being located outside the imaginary ring shape.

[0037] In the mating direction D2, the thickness of the second housing 600 may be 80% or more of the thickness of the first housing 500. This allows for more optimal placement of the signal contacts 200 within the shell 300. For example, in the mating direction D2, the signal contacts 200 can be placed near the center of the housing 400. In the mating direction D2, the thickness of the second housing 600 may be 90% or more, 80% or more to 120% or less, 80% or more to 110% or less, 90% or more to 120% or less, or 90% or more to 110% or less of the thickness of the first housing 500. The "thickness of the second housing 600" is, for example, the maximum thickness at a portion overlapping with the first housing 500. The "thickness of the first housing 500" is, for example, the maximum thickness at a portion overlapping with the second housing 600.

[0038] The respective configurations of the signal contact 200, the shell 300, and the housing 400 will be further described below.

[0039] (signal contact) The signal contact 200 includes a base plate 210, a contact portion 220, and a connecting portion 240. The signal contact 200 is formed by stamping and bending a thin metal (e.g., copper) plate material.

[0040] The base plate 210 extends in a direction intersecting the mating direction D2. The base plate 210 includes a first surface 211 facing the mating connector 20 and a second surface 212 opposite the first surface 211. The first housing 500 faces the first surface 211, and the second housing 600 faces the second surface 212. The contact portion 220 is held by a first holding portion 501 of the first housing 500, and comes into contact with the mating signal contact 21 when the mating portion 310 is mated with the mating shell 22. The connection portion 240 is held by a second holding portion 502 of the first housing 500, and is electrically connected to the center conductor 11 of the coaxial cable 10.

[0041] As shown in FIG. 4, the contact portion 220 includes a contact base 221 and a contact piece 224. The contact base 221 is connected to the base plate 210. For example, the contact base 221 is connected to the front of the base plate 210. The contact base 221 includes a first surface 222 connected to the first surface 211 of the base plate 210 and a second surface 223 connected to the second surface 212 of the base plate 210 (see FIG. 3). The contact piece 224 is bent relative to the contact base 221 so as to protrude from the first surface 222 and contacts the mating signal contact 21. As described above, since the first surface 222 is connected to the first surface 211, the contact piece 224 protruding from the first surface 222 also protrudes from the first surface 211. For example, the contact piece 224 contacts the mating signal contact 21 along a contact direction D3 that intersects (is perpendicular to) the extension direction D1 when viewed from the mating direction D2. Hereinafter, one side in the contact direction D3 will be referred to as the "left side" for the sake of convenience, and the other side in the contact direction D3 will be referred to as the "right side" for the sake of convenience.

[0042] The contact portion 220 may include a pair of contact pieces 224, 224. The pair of contact pieces 224, 224 are provided on the left and right sides of the contact base 221, respectively, and come into contact with the mating signal contact 21 from both the left and right sides (both sides in the contact direction D3).

[0043] The signal contact 200 further includes an extension plate 230 that extends from the contact base 221 in a direction away from the base plate 210. For example, the extension plate 230 extends forward from the contact base 221. The extension plate 230 includes a first surface 231 that is continuous with the first surface 211 and a second surface 232 that is continuous with the second surface 212.

[0044] The connecting portion 240 is connected to the base plate 210. For example, the connecting portion 240 is connected to the rear of the base plate 210. The connecting portion 240 includes a first surface 241 that is connected to the first surface 211 of the base plate 210, and a second surface 242 that is connected to the second surface 212 of the base plate 210 (see FIG. 4). The connecting portion 240 is shifted downward (in the direction in which the first surface 211 faces) with respect to the base plate 210, and is connected to the base plate 210 via a crank-shaped bend. The central conductor 11 is solid-state welded to the second surface 242 of the connecting portion 240 by ultrasonic welding or the like.

[0045] The base plate 210 includes a first connecting portion 213, a second connecting portion 214, and an expanded width portion 215. The first connecting portion 213 is continuous with the contact portion 220, the second connecting portion 214 is continuous with the connection portion 240, and the expanded width portion 215 is interposed between the first connecting portion 213 and the second connecting portion 214. As shown in FIG. 5 , when viewed from the fitting direction D2, the width W3 of the expanded width portion 215 is larger than both the width W1 of the first connecting portion 213 and the width W2 of the second connecting portion 214. When viewed from the fitting direction D2, the expanded width portion 215 is located at the boundary between the inside and outside of the outer edge of the fitting portion 310.

[0046] The width W4 of the contact portion 220 is larger than both the width W1 of the first connecting portion 213 and the width W2 of the second connecting portion 214. The width W4 of the contact portion 220 may be smaller than the width W3 of the widened portion 215. The width W5 of the extension plate 230 is smaller than the width W4 of the contact portion 220. The width W5 of the extension plate 230 may be smaller than both the width W1 of the first connecting portion 213 and the width W2 of the second connecting portion 214. The width W6 of the connecting portion 240 is larger than both the width W1 of the first connecting portion 213 and the width W2 of the second connecting portion 214. The width W6 of the connecting portion 240 may be smaller than the width W3 of the widened portion 215.

[0047] (shell) As shown in FIGS. 6 and 7 , the shell 300 includes the above-described fitting portion 310, a pair of arm portions 320, a pair of housing support portions 330, a cover plate 340, a pair of first barrels 341, and a pair of second barrels 342. The shell 300 is formed by, for example, stamping and bending a thin metal (e.g., copper) plate material. As described above, the fitting portion 310 includes a notch 311. As a result, the fitting portion 310 has both ends 312 in the circumferential direction. The notch 311 is located rearward of the center of the fitting portion 310 in the extension direction D1. The fitting portion 310 includes a pair of recesses 313, which are provided on the left and right sides of the upper edge of the fitting portion 310.

[0048] The pair of arm portions 320, 320 respectively protrude rearward from both ends 312, 312 of the fitting portion 310. The above-mentioned second holding portion 502 and second holding portion 602 are disposed between the pair of arm portions 320, 320. A pair of recesses 321, 321 are formed on the upper edges of the pair of arm portions 320, 320, respectively.

[0049] The pair of housing support portions 330, 330 extend between the pair of arm portions 320, 320 along the extension direction D1 and the contact direction D3, and support the second holding portion 502. For example, the pair of housing support portions 330, 330 are connected to the lower edges of the pair of arm portions 320, 320, respectively, and protrude toward the space between the pair of arm portions 320, 320.

[0050] The cover plate 340 protrudes upward from the fitting portion 310. The connection portion between the cover plate 340 and the fitting portion 310 is located forward of the center of the fitting portion 310. The cover plate 340 is bent rearward relative to the fitting portion 310, blocking the space between the fitting portion 310 and the pair of arm portions 320 from above, and protruding further rearward than the pair of arm portions 320 (see FIG. 3). Hereinafter, the terms "upper" and "lower" in the description of the cover plate 340 refer to the "upper" and "lower" states when the cover plate 340 is bent relative to the fitting portion 310.

[0051] The pair of first barrels 341, 341 are connected to the left and right sides of the cover plate 340, respectively, and are bent downward relative to the cover plate 340. The pair of first barrels 341, 341 cover at least a portion of the outer surface of the pair of arm portions 320, 320, respectively. Each of the pair of first barrels 341, 341 includes a base portion 341a and a bent piece 341b. The base portion 341a covers the outer surface of the arm portion 320 from the left or right. The bent piece 341b is bent relative to the base portion 341a and covers the outer surface of the housing support portion 330 from below. As a result, the second holding portion 502 and the second holding portion 602 supported by the housing support portion 330 are held between the cover plate 340 and the bent piece 341b. The pair of first barrels 341, 341 may be formed to further cover the outer surface of the outer conductor 13 rearward of the pair of arm portions 320, 320.

[0052] The pair of second barrels 342, 342 are connected to the left and right sides of the cover plate 340 rearward of the pair of first barrels 341, 341, and are bent downward with respect to the cover plate 340. Each of the pair of second barrels 342, 342 includes a base 342a and a bent piece 342b. The base 342a covers the outer surface of the outer conductor 13 from the left or right. The bent piece 342b is bent with respect to the base 342a and covers the outer surface of the outer conductor 13 from below. As a result, the exposed portion of the outer conductor 13 of the coaxial cable 10 is held between the cover plate 340 and the bent piece 342b, and electrical connection between the shell 300 and the outer conductor 13 is ensured.

[0053] (housing) The first housing 500 is formed by molding (e.g., injection molding) an insulating resin material. As shown in FIGS. 8 and 9, the first housing 500 includes an accommodating recess 521. The accommodating recess 521 opens upward so as to receive the signal contact 200 from above. The accommodating recess 521 is formed across both the first holding portion 501 and the second holding portion 502. A through hole 522 is formed in the portion of the accommodating recess 521 that accommodates the contact portion 220. The through hole 522 passes vertically through the first holding portion 501 and opens both upward and downward.

[0054] The second housing 600 is formed by molding (e.g., injection molding) an insulating resin material. As shown in Figures 10 and 11, the second housing 600 may include a cavity 610 that opens toward the signal contacts 200. The fact that the second housing 600 is separate from the first housing 500 can be effectively utilized to freely form the cavity 610 that opens toward the signal contacts 200.

[0055] As an example of the cavity 610, the second housing 600 may include a cavity 611 that opens toward the contact base 221 (see FIG. 12). The cavity 611 may be formed so that it opens toward the contact base 221 (downward) and does not open in the direction away from the contact base 221 (upward), or it may be formed so that it opens further upward. The cavity 611 increases the deformation room of the contact base 221, allowing the contact pieces 224 to smoothly contact the mating contacts.

[0056] The second housing 600 may be formed so as to contact both the extension plate 230 and the base plate 210 at the front and rear of the contact base 221 (see FIG. 3). This makes it easy to achieve both the holding strength of the contact portion 220 and the deformation margin of the contact base 221.

[0057] As another example of the cavity 610, the second housing 600 may further include a cavity 612 that opens toward the connection portion 240 (downward) (see FIG. 13 ). The cavity 612 may be further open toward the rear. The cavity 612 makes it possible to easily form a space for arranging the center conductor 11 connected to the connection portion 240. The cavity 612 may be formed so as to be open toward the connection portion 240 (downward) and not open in the direction away from the connection portion 240 (upward), or may be formed so as to be further open upward. This makes it possible to more sufficiently form a space for arranging the center conductor 11 connected to the connection portion 240.

[0058] As another example of the cavity 610, the second housing 600 may further include a cavity 613 that opens toward the widened portion 215 of the base plate 210. For example, the second housing 600 may further include a pair of cavities 613, 613 that open toward both ends of the widened portion 215 in the contact direction D3 (see FIG. 14 ). Each of the pair of cavities 613, 613 may be formed so as to open toward the widened portion 215 (downward) and not open in a direction away from the widened portion 215 (upward), or may be formed so as to open further upward.

[0059] The second housing 600 may include all of the cavity 611, the cavity 612, and the pair of cavities 613, 613, or may include any of the cavity 611, the cavity 612, and the pair of cavities 613, 613.

[0060] The resin material constituting the second housing 600 and the gas (e.g., air) in the cavity 610 have significantly different dielectric constants. Therefore, the capacitance between the signal contact 200 and the shell 300 can be appropriately adjusted by adjusting the number, arrangement, and size of the cavities 610. For example, the signal contact 200 may have a first portion and a second portion aligned along the current-carrying path R1 (see FIG. 3 ) from the center conductor 11 to the mating signal contact 21, and the difference between the capacitance between the first portion and the shell 300 and the capacitance between the second portion and the shell 300 may be reduced by forming the cavity 610. This allows the cavity 610 to be effectively used to improve the characteristic impedance.

[0061] In addition, the capacitance between the first part and the shell 300 may be the capacitance per unit length in the current path R1, and the capacitance between the second part and the shell 300 may be the capacitance per unit length in the current path R1.

[0062] For example, in the signal contact 200, the difference between the capacitance between the contact portion 220 (first portion) and the shell 300 and the capacitance between the base plate 210 (second portion) and the shell 300 may be reduced by forming the cavity 611. For example, as described above, the width W4 of the contact portion 220 is larger than both the width W1 of the first connecting portion 213 and the width W2 of the second connecting portion 214, and thus the formation of the cavity 611 may prevent the capacitance between the contact portion 220 and the shell 300 from becoming larger than the capacitance between the base plate 210 and the shell 300. In this way, the capacitance between the contact portion 220 and the shell 300 can be appropriately adjusted by the cavity 611.

[0063] The difference between the capacitance between the connection portion 240 (first portion) and the shell 300 and the capacitance between the base plate 210 (second portion) and the shell 300 may be reduced by forming the cavity 612. For example, as described above, the width W6 of the connection portion 240 is larger than both the width W1 of the first coupling portion 213 and the width W2 of the second coupling portion 214, and thus the formation of the cavity 612 may prevent the capacitance between the connection portion 240 and the shell 300 from becoming larger than the capacitance between the base plate 210 and the shell 300. In this way, the capacitance between the connection portion 240 and the shell 300 can be appropriately adjusted by the cavity 612.

[0064] The difference between the capacitance between the widened portion 215 (first portion) and the shell 300 and the capacitance between the first connecting portion 213 or the second connecting portion 214 (second portion) and the shell 300 may be reduced by forming the pair of hollow portions 613, 613. For example, as described above, the width W3 of the widened portion 215 is larger than both the width W1 of the first connecting portion 213 and the width W2 of the second connecting portion 214, and thus the formation of the pair of hollow portions 613 may prevent the capacitance between the widened portion 215 and the shell 300 from becoming larger than the capacitance between the first connecting portion 213 or the second connecting portion 214 and the shell 300.

[0065] Returning to FIG. 8, the first housing 500 may further include a second cavity 523 that opens toward the connection portion 240. For example, the second cavity 523 is formed so as to open upward in the bottom surface of the portion of the accommodating recess 521 that accommodates the connection portion 240. As shown in the figure, the second cavity 523 may be formed so as to open toward the connection portion 240 (upward) and not open in the direction away from the connection portion 240 (downward) ( FIG. 13 ), or may be formed so as to open further downward.

[0066] The second cavity 523 can easily form a space for absorbing deformation or burrs that are formed in the connection portion 240 due to the connection with the central conductor 11. Furthermore, the capacitance between the connection portion 240 and the shell 300 can be more appropriately adjusted by using the second cavity 523.

[0067] 8 and 10, the first housing 500 may include a first fitting portion 530, and the second housing 600 may include a second fitting portion 620 that fits with the first fitting portion 530. This allows the second housing 600 to be easily positioned relative to the first housing 500. For example, the first fitting portion 530 may be a protrusion, and the second fitting portion 620 may be a recess that fits with the first fitting portion 530, which is a protrusion. The first fitting portion 530 may be a recess, and the second fitting portion 620 may be a protrusion that fits with the first fitting portion 530, which is a recess.

[0068] 8, the first housing 500 may include a pair of first protrusions 531, 531 as an example of the first fitting portion 530. Each of the pair of first protrusions 531, 531 protrudes upward from the first holding portion 501. The pair of first protrusions 531, 531 are aligned along the contact direction D3 so as to be located on the left and right of the pair of first protrusions 531, 531.

[0069] 10, the second housing 600 may include a pair of recesses 621, 621 that respectively fit with the pair of first protrusions 531, 531. The pair of recesses 621, 621 are formed on the outer circumferential surface of the first holding portion 601, and open upward and downward, respectively.

[0070] 8, the first housing 500 may further include a pair of second protrusions 532, 532 as another example of the first fitting portion 530. The pair of second protrusions 532, 532 are located on the left and right sides of the widened portion 215, respectively, and protrude upward from the first housing 500. The pair of second protrusions 532, 532 are fitted into the pair of hollow portions 613, 613 described above, respectively (see FIG. 14).

[0071] The first housing 500 may further include claws 541 formed to resist a force that pulls the first housing 500 out of the shell 300 along the fitting direction D2. For example, the first housing 500 further includes a pair of claws 541 provided on each of the pair of first protrusions 531. The pair of claws 541 protrude in opposite directions along the contact direction D3. The pair of claws 541 fit into the pair of recesses 313 (see FIG. 12). When a force is applied that pulls the first holding portion 501 downward from the fitting portion 310 along the fitting direction D2, each of the pair of claws 541 hooks onto the fitting portion 310 and resists the downward pulling force.

[0072] In the fitting direction D2, the second housing 600 resists a force pushing the first housing 500 into the shell 300. In the fitting direction D2, the claw portions 541 resist a force pulling the first housing 500 out of the shell 300. Therefore, the holding strength of the first housing 500 in the fitting direction D2 can be improved.

[0073] 10 , the second housing 600 may further include a pair of claws 631, 631. The pair of claws 631, 631 protrude to the left and right from the upper part of the second holding portion 602, respectively, and fit into the pair of recesses 321, 321 described above, respectively. This allows the first housing 500 and the second housing 600 to be more appropriately positioned relative to the shell 300.

[0074] [Cable harness assembly procedure] As an example of an assembly method, the assembly procedure for the cable harness 1 will be illustrated. This procedure includes joining (e.g., solid-state joining) the center conductor 11 of the coaxial cable 10 to the signal contact 200, attaching the signal contact 200 with the joined center conductor 11 to the first housing 500, placing the second housing 600 on the first housing 500 so that the signal contact 200 is disposed between the first housing 500 and the second housing 600, accommodating the second housing 600 and the first housing 500 in the shell 300 in a stacked manner along the mating direction D2, and connecting the shell 300 to the outer conductor 13 of the coaxial cable 10. These procedures will be illustrated in detail below with reference to the drawings.

[0075] 16 and 17, with the first surface 241 facing downward and the second surface 242 facing upward, the connecting portion 240 is supported by the anvil T1, and the center conductor 11 exposed at the end of the coaxial cable 10 is brought into contact with the second surface 242. In this state, the horn T2 presses the center conductor 11 against the second surface 242 from above. With pressure being applied to the center conductor 11 and the second surface 242 by the horn T2, ultrasonic vibrations are applied to the center conductor 11 from the horn T2, thereby solid-state welding the center conductor 11 and the second surface 242 (see FIG. 18).

[0076] 19, the signal contact 200 to which the center conductor 11 is joined is accommodated in the accommodating recess 521 of the first housing 500, and the second housing 600 is fitted to the first housing 500. This attaches the first housing 500 and the second housing 600 to the end of the coaxial cable 10. Next, as shown in FIGS. 20 and 21, the first housing 500 and the second housing 600 are accommodated in the shell 300 from above along the fitting direction D2.

[0077] Next, as shown in FIG. 21 , the cover plate 340 is bent backward relative to the fitting portion 310. This blocks the space between the fitting portion 310 and the pair of arm portions 320 from above, the pair of arm portions 320 are housed between the pair of first barrels 341, and the outer conductor 13 is housed between the pair of second barrels 342. In this state, the bent piece 341b is bent relative to the base portion 341a. This causes the second holding portion 502 and the second holding portion 602 supported by the housing support portion 330 to be held between the cover plate 340 and the bent piece 341b. In addition, the bent piece 342b is bent relative to the base portion 342a. This causes the exposed portion of the outer conductor 13 of the coaxial cable 10 to be held between the cover plate 340 and the bent piece 342b, ensuring electrical connection between the shell 300 and the outer conductor 13 (see FIG. 2 ).

[0078] 〔summary〕 As described above, the electrical connector 100 is attached to the end of a coaxial cable 10 having a center conductor 11 and an outer conductor 13, and is connected to a mating connector 20 having a mating signal contact 21 and a mating shell 22. The electrical connector 100 comprises: a conductive signal contact 200 connected to the center conductor 11 and in contact with the mating signal contact 21; a conductive shell 300 that houses the signal contact 200, is connected to the outer conductor 13, and is mated with the mating shell 22 along the mating direction; and an insulating housing 400 that is arranged between the signal contact 200 and the shell 300. The housing 400 has a first housing 500 and a second housing 600 that is separate from the first housing 500 and overlaps with the first housing 500 along the mating direction, and the signal contact 200 is arranged between the first housing 500 and the second housing 600.

[0079] Because the first housing 500 and the second housing 600 are separate bodies, it is possible to connect the center conductor 11 to the signal contact 200 and then arrange the signal contact 200 between the first housing 500 and the second housing 600. Therefore, the center conductor 11 can be connected to the signal contact 200 under stable conditions without being restricted by the first housing 500 and the second housing 600. Furthermore, because the first housing 500 and the second housing 600 are separate bodies, the shape and size of each can be freely adjusted, and the arrangement of the signal contact 200 within the shell 300 can be freely adjusted. Because the first housing 500 and the second housing 600 overlap in the mating direction, it is only necessary to mate either the first housing 500 or the second housing 600 with the mating connector 20 (it is not necessary to mate both the first housing 500 and the second housing 600 with the mating connector 20). Therefore, even if the first housing 500 and the second housing 600 are separate bodies, the arrangement of the signal contacts 200 relative to the mating connector 20 is stable. Therefore, this electrical connector 100 is effective in improving the characteristic impedance.

[0080] The signal contact 200 has a base plate 210 that extends in a direction intersecting the mating direction, and the base plate 210 includes a first surface 211 facing the mating connector 20 and a second surface 212 opposite the first surface 211, and the first housing 500 may face the first surface 211, and the second housing 600 may face the second surface 212. This can further stabilize the arrangement of the signal contact 200 between the first housing 500 and the second housing 600.

[0081] The shell 300 has a mating portion 310 that mates with the mating shell 22, the first housing 500 has a first retaining portion 501 located inside the outer edge of the mating portion 310 as viewed from the mating direction, and a second retaining portion 502 located outside the outer edge of the mating portion 310 as viewed from the mating direction, and the second housing 600 may overlap both the first retaining portion 501 and the second retaining portion 502. This improves the workability when overlapping the second housing 600 onto the first housing 500.

[0082] In the mating direction, the thickness of the second housing 600 may be 80% or more of the thickness of the first housing 500. The arrangement of the signal contacts 200 within the shell 300 can be further optimized.

[0083] The second housing 600 may include a cavity 610 that opens toward the signal contact 200. The fact that the second housing 600 is separate from the first housing 500 can be effectively utilized to freely form the cavity 610 that opens toward the signal contact 200.

[0084] The signal contact 200 has a first portion and a second portion aligned along the current path from the center conductor 11 to the mating signal contact 21, and the difference between the capacitance between the first portion and the shell 300 and the capacitance between the second portion and the shell 300 may be reduced by forming a cavity 610. The cavity 610 can be effectively used to improve the characteristic impedance.

[0085] The signal contact 200 further has a contact portion 220 that is held by the first holding portion 501 and that contacts the mating signal contact 21. The contact portion 220 includes a contact base 221 that is continuous with the base plate 210 and a contact piece 224 that protrudes from the first surface 211, bends relative to the contact base 221, and contacts the mating signal contact 21. The second housing 600 may include a cavity 611 that opens toward the contact base 221. The cavity 611 allows the capacitance between the contact portion 220 and the shell 300 to be appropriately adjusted. The cavity 611 also increases the deformation margin of the contact base 221, allowing the contact piece 224 to smoothly contact the mating signal contact 21.

[0086] The signal contact 200 may further have an extension plate 230 that protrudes from the contact base 221 in a direction away from the base plate 210, and the second housing 600 may be in contact with both the base plate 210 and the extension plate 230. This makes it easy to achieve both the holding strength of the contact portion 220 and the deformation margin of the contact base 221.

[0087] The signal contact 200 further includes a connecting portion 240 that is held by the second holding portion 502 and connected to the center conductor 11, and the second housing 600 may include a cavity 613 that opens toward the connecting portion 240. The capacitance between the connecting portion 240 and the shell 300 can be appropriately adjusted by the cavity 613. In addition, a space for arranging the center conductor 11 that is connected to the connecting portion 240 can be easily formed.

[0088] The cavity 613 may be further open in the direction away from the connection portion 240. This makes it possible to provide a more sufficient space for arranging the central conductor 11 connected to the connection portion 240.

[0089] The first housing 500 may include a second cavity 523 that opens toward the connection portion 240. The capacitance between the connection portion 240 and the shell 300 can be more appropriately adjusted by the second cavity 523. In addition, a space for absorbing deformations or burrs that are formed in the connection portion 240 due to the connection with the center conductor 11 can be easily formed.

[0090] The first housing 500 may include a first fitting portion 530, and the second housing 600 may include a second fitting portion 620 that fits with the first fitting portion 530. In this case, the second housing 600 can be easily positioned relative to the first housing 500.

[0091] The first fitting portion 530 is a protrusion, the second fitting portion 620 is a recess that fits with the protrusion, and the first housing 500 may include claws 541 formed on the protrusion so as to resist a force that pulls the first housing 500 out of the shell 300 in the fitting direction. In the fitting direction, the second housing 600 resists a force that pushes the first housing 500 into the shell 300. In the fitting direction, the claws 541 resist a force that pulls the first housing 500 out of the shell 300. Therefore, the holding strength of the first housing 500 in the fitting direction can be improved.

[0092] Although the embodiments have been described above, the present disclosure is not necessarily limited to the above-described embodiments, and can be modified within the scope of the gist thereof.

[0093] For example, the cavities 611, 612, and 613 formed in the second housing 600 At least one of them may be provided in the first housing 500, and a cavity formed in the first housing 500 (for example, the second cavity 523) may be provided in the second housing 600.

[0094] For example, in the above-described embodiment, the cavity 612 that is open toward the connection portion 240 and that is provided in the second housing 600 to accommodate the center conductor 11 may be provided in the first housing 500. In this case, the center conductor 11 is joined to the first surface 241 of the connection portion 240 and accommodated in the cavity 612 provided in the first housing 500. In order to expand the accommodation space for the center conductor 11, the connection portion 240 may be shifted upward (in the direction in which the second surface 212 faces) with respect to the base plate 210. The cavity 612 provided in the first housing 500 may reduce the difference between the capacitance between the connection portion 240 (first portion) and the shell 300 and the capacitance between the base plate 210 (second portion) and the shell 300.

[0095] When the cavity 612 is provided in the first housing 500, the cavity 523 provided in the first housing 500 may be provided in the second housing 600 so as to open to the connection portion 240 from the side opposite the cavity 612. The cavity 523 provided in the second housing 600 may be open toward the connection portion 240, and may also be open in a direction away from the connection portion 240 (toward the cover plate 340). [Explanation of symbols]

[0096] 1...cable harness, 10...coaxial cable, 11...center conductor, 13...outer conductor, 100...electrical connector, 200...signal contact, 300...shell, 310...mating portion, 400...housing, 500...first housing, 600...second housing, 501...first retaining portion, 502...second retaining portion, 220...contact portion, 240...connecting portion, 210...base plate, 211...first surface, 212...second surface, 221...contact base, 224...contact piece, 230...extension plate, 523...second cavity portion, 610...cavity portion, 611...cavity portion, 612...cavity portion, 530...first mating portion, 541...claw portion, 620...second mating portion, 20...mating connector, 21...mating signal contact, 22...mating shell.

Claims

1. An electrical connector attached to an end of a coaxial cable having a center conductor and an outer conductor, and connected to a mating connector having a mating signal contact and a mating shell, a conductive signal contact connected to the center conductor and adapted to contact the mating signal contact; a conductive shell that houses the signal contact, is connected to the outer conductor, and is fitted into the mating shell along a fitting direction; an insulating housing disposed between the signal contacts and the shell; Equipped with The housing includes: A first housing; a second housing that is separate from the first housing and overlaps with the first housing along the fitting direction; and The shell has a fitting portion that fits with the mating shell, The first housing includes: a first holding portion located inside an outer edge of the fitting portion when viewed from the fitting direction; a second holding portion located outside an outer edge of the fitting portion when viewed from the fitting direction; and the second housing overlaps both the first holding portion and the second holding portion, the signal contact is disposed between the first housing and the second housing; a base plate extending in a direction intersecting the fitting direction; a contact portion held by the first holding portion and adapted to come into contact with the mating signal contact; and The base plate is a first surface facing the mating connector; a second surface opposite the first surface; Including, the first housing faces the first surface, and the second housing faces the second surface; The contact portion is a contact base connected to the base plate; a contact piece that is bent relative to the contact base so as to protrude from the first surface and that comes into contact with the mating signal contact; Including, the second housing includes a cavity that opens toward the contact base; Electrical connector.

2. a thickness of the second housing in the fitting direction being 80% or more of a thickness of the first housing; 2. The electrical connector of claim 1.

3. the signal contact has a first portion and a second portion aligned along a current-carrying path from the center conductor to the mating signal contact; a difference between a capacitance between the first portion and the shell and a capacitance between the second portion and the shell is reduced by forming one or more cavities in the second housing, including the cavity; 2. The electrical connector of claim 1.

4. the signal contact further includes an extension plate extending from the contact base in a direction away from the base plate; the second housing contacts both the base plate and the extension plate; 2. The electrical connector of claim 1.

5. the signal contact further includes a connection portion held by the second holding portion and connected to the center conductor; the second housing includes a cavity that opens toward the connection portion and accommodates the center conductor.

2. The electrical connector of claim 1.

6. The cavity portion is further open in a direction away from the connection portion.

6. The electrical connector according to claim 5.

7. the first housing includes a second cavity portion that opens toward the connection portion from a side opposite to the cavity portion; 6. The electrical connector according to claim 5.

8. the first housing includes a cavity that opens toward the signal contacts; 2. The electrical connector of claim 1.

9. the signal contact has a first portion and a second portion aligned along a current-carrying path from the center conductor to the mating signal contact; a difference between a capacitance between the first portion and the shell and a capacitance between the second portion and the shell is reduced by forming the cavity; 9. The electrical connector of claim 8.

10. the signal contact further includes a connection portion held by the second holding portion and connected to the center conductor; the first housing includes a cavity portion that opens toward the connection portion and accommodates the center conductor; 2. The electrical connector of claim 1.

11. the second housing includes a second cavity portion that opens toward the connection portion from a side opposite to the cavity portion; 11. The electrical connector of claim 10.

12. The second cavity portion is further open in a direction away from the connection portion.

12. The electrical connector of claim 11.

13. the first housing includes a first fitting portion; the second housing includes a second fitting portion that fits with the first fitting portion; 2. The electrical connector of claim 1.

14. the first fitting portion is a convex portion, and the second fitting portion is a concave portion that fits with the convex portion, the first housing includes a claw portion formed on the protrusion so as to resist a force that pulls the first housing out of the shell in the fitting direction; 14. The electrical connector of claim 13.

15. An electrical connector attached to an end of a coaxial cable having a center conductor and an outer conductor, and connected to a mating connector having a mating signal contact and a mating shell, comprising: a conductive signal contact connected to the center conductor and adapted to contact the mating signal contact; a conductive shell that houses the signal contact, is connected to the outer conductor, and is fitted into the mating shell along a fitting direction; an insulating housing disposed between the signal contacts and the shell; Equipped with The housing includes: A first housing; a second housing that is separate from the first housing and overlaps with the first housing along the fitting direction; and The shell has a fitting portion that fits with the mating shell, The first housing includes: a first holding portion located inside an outer edge of the fitting portion when viewed from the fitting direction; a second holding portion located outside an outer edge of the fitting portion when viewed from the fitting direction; and the second housing overlaps both the first holding portion and the second holding portion, the signal contact is disposed between the first housing and the second housing; a base plate extending in a direction intersecting the fitting direction; a connection portion held by the second holding portion and connected to the central conductor; and The base plate is a first surface facing the mating connector; a second surface opposite the first surface; Including, the first housing faces the first surface, and the second housing faces the second surface; the second housing includes a cavity that opens toward the connection portion and accommodates the center conductor; The cavity portion is further open in a direction away from the connection portion. Electrical connector.

16. An electrical connector attached to an end of a coaxial cable having a center conductor and an outer conductor, and adapted to be connected to a mating connector having a mating signal contact and a mating shell, comprising: a conductive signal contact connected to the center conductor and adapted to contact the mating signal contact; a conductive shell that houses the signal contact, is connected to the outer conductor, and is fitted into the mating shell along a fitting direction; an insulating housing disposed between the signal contacts and the shell; Equipped with The housing includes: A first housing; a second housing that is separate from the first housing and overlaps with the first housing along the fitting direction; and The shell has a fitting portion that fits with the mating shell, The first housing includes: a first holding portion located inside an outer edge of the fitting portion when viewed from the fitting direction; a second holding portion located outside an outer edge of the fitting portion when viewed from the fitting direction; and the second housing overlaps both the first holding portion and the second holding portion, the signal contact is disposed between the first housing and the second housing; a base plate extending in a direction intersecting the fitting direction; a connection portion held by the second holding portion and connected to the central conductor; and The base plate is a first surface facing the mating connector; a second surface opposite the first surface; Including, the first housing faces the first surface, and the second housing faces the second surface; the second housing includes a cavity that opens toward the connection portion and accommodates the center conductor; the first housing includes a second cavity portion that opens toward the connection portion from a side opposite to the cavity portion; Electrical connector.

17. An electrical connector attached to an end of a coaxial cable having a center conductor and an outer conductor, and connected to a mating connector having a mating signal contact and a mating shell, comprising: a conductive signal contact connected to the center conductor and adapted to contact the mating signal contact; a conductive shell that houses the signal contact, is connected to the outer conductor, and is fitted into the mating shell along a fitting direction; an insulating housing disposed between the signal contacts and the shell; Equipped with The housing includes: A first housing; a second housing that is separate from the first housing and overlaps with the first housing along the fitting direction; and The shell has a fitting portion that fits with the mating shell, The first housing includes: a first holding portion located inside an outer edge of the fitting portion when viewed from the fitting direction; a second holding portion located outside an outer edge of the fitting portion when viewed from the fitting direction; and the second housing overlaps both the first holding portion and the second holding portion, the signal contact is disposed between the first housing and the second housing; a base plate extending in a direction intersecting the fitting direction; a connection portion held by the second holding portion and connected to the central conductor; and The base plate is a first surface facing the mating connector; a second surface opposite the first surface; Including, the first housing faces the first surface, and the second housing faces the second surface; the first housing includes a cavity that opens toward the connection portion and accommodates the center conductor; the second housing includes a second cavity portion that opens toward the connection portion from a side opposite to the cavity portion; Electrical connector.

18. An electrical connector attached to an end of a coaxial cable having a center conductor and an outer conductor, and connected to a mating connector having a mating signal contact and a mating shell, comprising: a conductive signal contact connected to the center conductor and adapted to contact the mating signal contact; a conductive shell that houses the signal contact, is connected to the outer conductor, and is fitted into the mating shell along a fitting direction; an insulating housing disposed between the signal contacts and the shell; Equipped with The housing includes: A first housing; a second housing that is separate from the first housing and overlaps with the first housing along the fitting direction; and The shell has a fitting portion that fits with the mating shell, The first housing includes: a first holding portion located inside an outer edge of the fitting portion when viewed from the fitting direction; a second holding portion located outside an outer edge of the fitting portion when viewed from the fitting direction; and the second housing overlaps both the first holding portion and the second holding portion, the signal contact is disposed between the first housing and the second housing; a base plate extending in a direction intersecting the fitting direction; a connection portion held by the second holding portion and connected to the central conductor; and The base plate is a first surface facing the mating connector; a second surface opposite the first surface; Including, the first housing faces the first surface, and the second housing faces the second surface; the connection portion has a connection surface that is continuous with the first surface and faces in the same direction as the first surface, and the central conductor is connected to the connection surface; the first housing includes a cavity portion that opens toward the connection portion and accommodates the center conductor; Electrical connector.

19. The electrical connector according to any one of claims 1 to 18; the coaxial cable, the center conductor is bonded to the signal contact; Cable harness.

Images