Connector

Abstract

To provide a connector that is effective in both of reinforcement of signal contact and enhancement of the reliability of high-frequency signal transmission.SOLUTION: A connector 100 includes a signal contact, a ground contact, and a housing. The ground contact has a mating shell 310 and an outer shell adjacent to the mating shell 310 along an extension direction. The signal contact has a pair of contact pieces 224, 224 that are bent relatively to the contact base plate 221 and contact each of the mating signal contacts. The housing has a receiving hole 511 that receives the mating signal contact, a pair of introduction holes 512, 512 that respectively guide the pair of contact pieces 224, 224 into the receiving hole 511, and a beam 513 that extends along the extension direction and faces the contact base plate 221 between the pair of contact pieces 224, 224.SELECTED DRAWING: Figure 4

Description

[Technical field]

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

[0002] Patent Document 1 discloses a connector including an insulating housing, conductive signal contacts, and conductive ground contacts. The signal contacts are accommodated in the housing and are electrically connected to the central conductor of the coaxial cable and are connected to a mating signal contact portion of the mating connector. The ground contacts cover the housing and are electrically connected to the outer conductor of the coaxial cable and are connected to a mating ground contact portion of the mating connector. The signal contact members have forward ends which are supported by the contact supports of the housing member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-220358 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a connector that is effective in reinforcing signal contacts while improving reliability in transmitting high-frequency signals. [Means for solving the problem]

[0005] A connector according to one aspect of the present disclosure includes a conductive signal contact that is connected to a central conductor of a coaxial cable and contacts a mating signal contact of a mating connector, a conductive ground contact that is connected to an outer conductor of the coaxial cable and contacts a mating ground contact of the mating connector, and an insulating housing that holds the signal contact insulated from the ground contact and is housed in the ground contact, the ground contact extending along a mating direction when mated with the mating connector and mating with the mating ground contact, and a mating shell that extends along an extension direction perpendicular to the mating direction and is adjacent to the mating shell, and holds the coaxial cable outside the mating shell. and an outer shell connected to the external conductor, the signal contacts have a contact base plate that intersects the mating direction, and a pair of contact pieces that are bent relative to the contact base plate within the mating shell so as to face each other in opposing directions perpendicular to the mating direction and the extension direction, and each contact a mating signal contact from both sides in the opposing directions, and the housing has a receiving hole that opens toward the direction in which the pair of contact pieces bend and extend relative to the contact base plate, and receives the mating signal contact, a pair of introduction holes that respectively guide the pair of contact pieces into the receiving hole, and a beam that extends along the extension direction to partition the pair of introduction holes and face the contact base plate between the pair of contact pieces. Effect of the Invention

[0006] According to the present disclosure, it is possible to provide a connector that is effective in reinforcing signal contacts while improving reliability in transmitting high-frequency signals. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a perspective view showing an example of a connector assembly and a mating connector. [Diagram 2] 2 is a perspective view of the connector assembly of FIG. 1, seen from another direction. [Diagram 3] FIG. 2 is a cross-sectional view taken along line III-III in FIG. [Figure 4]FIG. 2 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] 2 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 2 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 4 is a perspective view of a signal contact in FIG. 3. [Figure 8] FIG. 8 is a plan view of the signal contact of FIG. 7. [Figure 9] FIG. 4 is a perspective view of the ground contact in FIG. 3 before assembly. [Figure 10] FIG. 4 is a perspective view of a first housing in FIG. [Figure 11] 11 is a perspective view of the first housing of FIG. 10 as viewed from a different direction. [Figure 12] FIG. 4 is a perspective view of a second housing in FIG. 3. [Figure 13] 13 is a perspective view of the second housing of FIG. 12, seen from a different direction. [Figure 14] FIG. 2 is a perspective view of a sub-ground contact. [Figure 15] 2A to 2C are diagrams illustrating an assembly procedure for the connector assembly of FIG. 1. [Figure 16] 2A to 2C are diagrams illustrating an assembly procedure for the connector assembly of FIG. 1. [Figure 17] 2A to 2C are diagrams illustrating an assembly procedure for the connector assembly of FIG. 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] 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 duplicated description will be omitted.

[0009] [Connector Assembly] The connector assembly 1 shown in Fig. 1 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 by a fifth-generation mobile communication system (5G communication).

[0010] As shown in Figs. 1, 2, 3, and 4, the connector assembly 1 includes a coaxial cable 10 and a connector 100. The coaxial cable 10 includes a central conductor 11, a dielectric layer 12, an outer conductor 13, and a cable sheath 14. The central conductor 11 is a flexible conductive core wire. The outer conductor 13 is a conductive tubular body surrounding the central conductor 11. For example, the outer conductor 13 is formed in a mesh shape from thin metal wires and is flexible. The dielectric layer 12 is made of a dielectric material and provides insulation between the central 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.

[0011] The connector 100 is attached to an end of a coaxial cable 10. In order to attach the connector 100, the coaxial cable 10 is formed such that a portion where the central conductor 11 is exposed by removing the dielectric layer 12, the outer conductor 13, and the cable sheath 14, and a portion where the outer conductor 13 is exposed by removing the cable sheath 14 are lined up in this order from the end of the coaxial cable 10. The connector 100 is connected to a mating connector 20 having a mating signal contact 21 and a mating ground contact 22. The mating connector 20 is attached to, for example, a circuit board 29. The mating signal contact 21 is electrically connected to the central conductor of the circuit board 29, and has a contact portion 24 protruding from the circuit board 29. The mating ground contact 22 is electrically connected to the ground conductor of the circuit board 29, and has a ring-shaped (for example, annular) fitting portion 25 protruding from the circuit board 29 so as to surround the contact portion 24.

[0012] 3, the connector 100 includes a conductive signal contact 200, a conductive ground contact 300, and an insulating housing 400. The signal contact 200 is electrically connected to the central conductor 11 of the coaxial cable 10, and contacts a mating signal contact 21 of the mating connector 20. In order to electrically connect the central conductor 11 and the signal contact 200, the central conductor 11 may be solid-state bonded to the signal contact 200. Hereinafter, the direction along the central axis of the central conductor 11 bonded to the signal contact 200 is referred to as the extension direction, and the direction in which the central conductor 11 bonded to the signal contact 200 protrudes from within the dielectric layer 12 is referred to as the "forward" direction for the sake of convenience.

[0013] Solid-state bonding means that materials to be joined are brought into contact with each other in a solid state and pressure or frictional force is applied to the contact points to join the materials to be joined. 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 in the solid-state bonded points. The method of joining the central conductor 11 and the signal contact 200 is not limited to solid-state bonding. The central conductor 11 and the signal contact 200 may be joined by brazing or soldering.

[0014] The ground contact 300 receives the signal contact 200, is electrically connected to the outer conductor 13 of the coaxial cable 10, and contacts the mating ground contact 22 of the mating connector 20. The ground contact 300 has a mating shell 310 and an outer shell 320. The mating shell 310 mates with the mating portion 25 of the mating ground contact 22 along the mating direction D2.

[0015] Fitting with the fitting portion 25 along the fitting direction D2 means that the movement direction for fitting is along the fitting direction D2. As an example, the fitting direction D2 intersects (e.g., perpendicular to) the circuit board 29. Hereinafter, when it is necessary to distinguish the orientation in the fitting direction D2, the direction toward the circuit board 29 along the fitting direction D2 will be referred to as "downward" for the sake of convenience, and the direction away from the circuit board 29 along the fitting direction D2 will be referred to as "upward" for the sake of convenience.

[0016] For example, the mating shell 310 has a ring shape (e.g., a circular ring shape) when viewed from the mating direction D2, and fits onto the outer periphery of the mating ground contact 22. The mating shell 310 does not necessarily have to surround the entire outer periphery of the mating ground contact 22 as long as it can maintain a state of being fitted onto the outer periphery of the mating ground contact 22. For example, the mating shell 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 shell 310 is located rearward (opposite the "forward" direction described above) with respect to the center of the mating shell 310.

[0017] Viewing from the mating direction D2 means viewing from a viewpoint away from the connector 100 along the mating direction D2. If the mating direction D2 is a vertical direction, viewing from above vertically or viewing from below vertically corresponds to an example of viewing from the mating direction D2. The same applies hereinafter.

[0018] The outer shell 320 is adjacent to the mating shell 310 along an extending direction D1 perpendicular to the mating direction D2. The outer shell 320 holds the coaxial cable 10 outside the mating shell 310 and is connected to the outer conductor 13.

[0019] The housing 400 holds the signal contacts 200 and is housed in the ground contacts 300. The housing 400 keeps the signal contacts 200 and the ground contacts 300 insulated from each other.

[0020] 4, the signal contact 200 has a contact base plate 221 and a pair of contact pieces 224. The contact base plate 221 intersects (e.g., perpendicular to) the mating direction D2. For example, the contact base plate 221 extends along a plane intersecting (e.g., perpendicular to) the mating direction D2, and has a first surface 222 facing the circuit board 29 and a second surface 223 facing away from the circuit board 29.

[0021] The pair of contact pieces 224, 224 are each bent downward with respect to the contact base plate 221. In the mating shell 310, the pair of contact pieces 224, 224 face each other in a contact direction D3 perpendicular to the mating direction D2 and the extending direction D1. The pair of contact pieces 224, 224 each contact the contact portion 24 of the mating signal contact 21 from both sides in the contact direction D3.

[0022] The housing 400 has a receiving hole 511, a pair of introduction holes 512, 512, and a beam 513. The receiving hole 511 opens toward the direction in which the pair of contact pieces 224, 224 bend relative to the contact base plate 221 (downward), and receives the contact portion 24 of the mating signal contact 21. The pair of introduction holes 512, 512 respectively guide the pair of contact pieces 224, 224 from above downward into the receiving hole 511. The beam 513 extends along the extending direction D1 to separate the pair of introduction holes 512, 512, and faces the contact base plate 221 between the pair of contact pieces 224, 224.

[0023] When the connector 100 is removed from the mating connector 20, the force of pulling out the mating signal contact 21 from the receiving hole 511 acts on the pair of contact pieces 224, 224. In particular, in a microconnector, the signal contact 200 may not be able to resist the force of pulling out the signal contact 200 from the receiving hole 511, and may be deformed to make it difficult to reuse the signal contact 200. For this reason, it was necessary to provide a support for the signal contact by the housing, as in the front end of Patent Document 1 described above. However, the support protruding from the front end of Patent Document 1 may cause signal reflection, which may hinder stable transmission of a relatively high frequency signal, for example, 50 to 60 GHz. According to the connector 100, the force of pulling out the signal contact 200 from the receiving hole 511 is received by the beam 513 facing the contact base plate 221, so there is no need to provide a separate protruding support. Therefore, the connector 100 is effective in both reinforcing the signal contact 200 and improving the reliability of high-frequency signal transmission.

[0024] The housing 400 may further include a back support 610 facing the contact base plate 221 from the opposite side to where the receiving hole 511 opens. A force in a direction pushing the receiving hole 511 deeper is received by the back support 610 facing the contact base plate 221. Therefore, the signal contact 200 can be further reinforced.

[0025] 3, a distance G1 between the back support 610 and the beam 513 in the mating direction D2 may be greater than the thickness of the contact base plate 221 and less than twice the thickness of the contact base plate 221. By reinforcing the signal contacts 200 while preserving their flexibility, it is possible to improve the usability of the connector 100. For example, the distance G1 may be 1.5 times or less the thickness of the contact base plate 221.

[0026] The back support 610 may have a recess 611 that opens toward the contact base plate 221. While the back support 610 receives a force in a direction to push the receiving hole 511 toward the back, the deformation room of the contact base plate 221 is increased, and the pair of contact pieces 224, 224 can be smoothly brought into contact with the contact portion 24 of the mating signal contact 21. The back support 610 faces the contact base plate 221, for example, both in front of and behind the recess 611.

[0027] In the extending direction D1, a front edge 612 of the back support 610 may be located rearward of a front end of the contact base plate 221 and forward of the pair of contact pieces 224, 224. In the extending direction D1, a rear edge 613 of the back support 610 may be located rearward of the pair of contact pieces 224, 224. While ensuring a facing space of the back support 610 with respect to the contact base plate 221 on both the front and rear of the recess 611, it is possible to prevent the upward displacement of the contact base plate 221 and the upward displacement of the contact pieces 224, 224 that occurs as the contact portion 24 of the mating signal contact 21 enters between the pair of contact pieces 224, 224 from being impeded.

[0028] The contact base plate 221 may include a protruding piece 230 that protrudes forward (opposite to the direction toward the inside of the outer shell 320) from between the pair of contact pieces 224, 224. In the extending direction D1, the entire length of the protruding piece 230 may be located within the range of the beam 513. The protruding piece 230 increases the facing amount of the back support 610 relative to the contact base plate 221, while the entire length of the protruding piece 230 is set to a length that fits within the range of the beam 513, thereby suppressing reflection of a signal from the protruding piece 230.

[0029] The housing 400 may be formed as a single body or may be formed as two or more separate bodies. For example, the housing 400 may have 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 fitting direction D2. The first housing 500 includes a receiving hole 511, a pair of introduction holes 512, 512, and a beam 513. The second housing 600 includes a back support 610. The signal contacts 200 are incorporated between the first housing 500 and the second housing 600.

[0030] Separate means that they are formed without any physical connection to each other. As described below, 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 have no physical connection 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.

[0031] Since the receiving hole 511, the pair of introduction holes 512, 512, the beam 513, and the back support 610 can be formed separately, productivity is improved.

[0032] In the fitting direction D2, the thickness H2 of the second housing 600 may be 80% or more of the thickness H1 of the first housing 500. The thickness H1 is, for example, the maximum thickness of the first housing 500 at a portion overlapping with the second housing 600. The thickness H2 is, for example, the maximum thickness of the second housing 600 at a portion overlapping with the first housing 500.

[0033] Since the thickness H2 of the second housing 600 is 80% or more of the thickness H1 of the first housing 500, the signal contacts 200 are disposed near the center of the ground contacts 300 in the fitting direction D2. This brings the positional relationship between the signal contacts 200 and the ground contacts 300 in the connector closer to the positional relationship between the center conductor 11 and the outer conductor 13 in the coaxial cable 10. Therefore, by arranging the signal contacts 200, it is possible to match the characteristic impedance of the connector 100 with the characteristic impedance of the coaxial cable 10.

[0034] The contact base plate 221 of the signal contact 200 is located below the central conductor connection plate 240. This shortens the distance between the contact portion 24 of the mating signal contact 21 and the contact base plate 221 of the signal contact 200, bringing the reflection points between them closer to each other and shifting the resonance frequency to the higher frequency side.

[0035] The signal contact 200 may further include a center conductor connecting plate 240 and a connecting plate 210. The center conductor connecting plate 240 crosses the mating direction D2, extends into the outer shell 320 along the extending direction D1, and is connected to the center conductor 11 of the coaxial cable 10. The connecting plate 210 crosses the mating direction D2 and connects the contact base plate 221 to the center conductor connecting plate 240.

[0036] The first housing 500 may have a first holding portion 501 located inside the outer edge of the fitting shell 310 as viewed from the fitting direction D2, and a second holding portion 502 located outside the outer edge of the fitting shell 310 as viewed from the fitting direction D2, and the second housing 600 may be configured to overlap both the first holding portion 501 and the second holding portion 502. For example, the second housing 600 has the first holding portion 601 overlapping the first holding portion 501 and the second holding portion 602 overlapping the second holding portion 502. This improves the workability when overlapping the second housing 600 on the first housing 500. As viewed from the fitting direction D2, the first holding portion 501 and the second holding portion 502 are aligned along the fitting direction D2 and are connected via a cutout portion of the fitting shell 310.

[0037] When the mating shell 310 has a cutout, being located inside the outer edge of the mating shell 310 means that the target (for example, the first housing 500) is located inside a ring shape (hereinafter referred to as a "virtual ring shape") obtained by interpolating the cutout portion with a virtual line extending the outer edge of the mating shell 310. Being located outside the outer edge of the mating shell 310 means that the target is located outside the virtual ring shape.

[0038] A contact base plate 221 is fitted between the first holding portion 501 and the first holding portion 601. A central conductor connection plate 240 is fitted between the second holding portion 502 and the second holding portion 602 (see FIG. 5). The coupling plate 210 is partially fitted between the first holding portion 501 and the first holding portion 601, and is also partially fitted between the second holding portion 502 and the second holding portion 602.

[0039] The first housing 500 may further include a protrusion 523 that penetrates the connecting plate 210 and positions the signal contact 200 relative to the first housing 500. By utilizing the connecting plate 210 that does not contact the mating signal contact 21 and is not connected to the central conductor 11, the signal contact 200 can be accurately positioned relative to the first housing 500 while ensuring the flexibility of the signal contact 200 within the mating shell 310 and the connection space of the central conductor 11 within the outer shell 320.

[0040] The second housing 600 may further include a second recess 621 that opens toward the connecting plate 210 so as to accommodate the protrusion 523 that penetrates the connecting plate 210 (see FIG. 6). By more reliably allowing the protrusion 523 to penetrate the connecting plate 210, the reliability of the positioning of the signal contact 200 relative to the first housing 500 can be improved.

[0041] The ground contact 300 may further include a ground base plate 340 that intersects with the mating direction D2 and extends in the extending direction D1. The ground base plate 340 extends from the mating shell 310 to the outer shell 320. The mating shell 310 protrudes from the ground base plate 340 toward the opening of the receiving hole 511 and surrounds the mating portion 25 of the mating ground contact 22 around the mating direction D2. The outer shell 320 includes a facing plate 332. The facing plate 332 faces the ground base plate 340 from the side facing the circuit board 29 (the side where the receiving hole 511 opens) and holds the housing 400 between the facing plate 332 and the ground base plate 340. The connector 100 may further include a conductive sub-ground contact 700. The sub-ground contact 700 is held in the housing 400 so as to contact the opposing plate 332 from the inside (between the ground base plate 340 and the opposing plate 332), and protrudes from the opposing plate 332 toward the mating portion 25 of the mating ground contact 22 mated with the mating shell 310. By covering the area between the opposing plate 332 and the mating portion 25 with the conductive sub-ground contact 700, noise can be further reduced.

[0042] The connector 100 may have an accommodation space S1 for the center conductor 11 connected to the center conductor connecting plate 240, between the sub-ground contact 700 and the center conductor connecting plate 240. By increasing both the distance between the signal contact 200 and the sub-ground contact 700 and the accommodation space S1 for the center conductor 11 to avoid the signal contact 200 and the sub-ground contact 700 coming close to each other and adjusting the space (gap), the characteristic impedance can be matched.

[0043] 4, the distance between the center conductor connecting plate 240 and the ground base plate 340 may be smaller than the distance between the contact base plate 221 and the ground base plate 340, and the connecting plate 210 may be bent while crossing the mating direction D2 to connect the contact base plate 221 to the center conductor connecting plate 240. The position of the contact base plate 221 in the mating direction D2 and the positions of the center conductor connecting plate 240 and the center conductor 11 in the mating direction D2 may be independently optimized.

[0044] The sub-ground contact 700 may include a sub-contact portion 701. The sub-contact portion 701 contacts the fitting portion 25 of the mating ground contact 22 along the fitting direction D2. After the fitting shell 310 is fitted into the fitting portion 25 of the mating ground contact 22, the sub-contact portion 701 contacts the fitting portion 25. Therefore, when the fitting shell 310 is fitted into the fitting portion 25, the fitting portion 25 smoothly contacts the sub-contact portion 701.

[0045] The sub-ground contact 700 may further include a spring portion 702. When the fitting shell 310 is fitted into the fitting portion 25 of the mating ground contact 22, the spring portion 702 elastically deforms toward the ground base plate 340, and maintains the sub-contact portion 701 in contact with the fitting portion 25 by the reaction force of the elastic deformation. The spring portion 702 can suppress variation in the noise reduction effect of the sub-ground contact 700.

[0046] The thickness of the sub-ground contact 700 may be smaller than the thickness of the ground base plate 340 and the opposing plate 332. The thickness of the sub-ground contact 700 can further suppress the variation in the noise reduction effect of the sub-ground contact 700 and improve the fitting strength of the ground contact 300 to the mating connector 20.

[0047] The sub-contact portion 701 may be configured to contact the fitting portion 25 of the mating ground contact 22 along the extending direction D1. For example, the sub-contact portion 701 may be configured to contact the fitting portion 25 of the mating ground contact 22 from the outer periphery.

[0048] The configurations of the signal contacts 200, the ground contacts 300, the housing 400, and the sub-ground contacts 700 will be further illustrated below.

[0049] (signal contact) As described above, the signal contact 200 includes the contact base plate 221, the pair of contact pieces 224, the central conductor connection plate 240, and the connection plate 210. The signal contact 200 is formed by stamping and bending a thin metal (e.g., copper) plate material.

[0050] 7, the contact base plate 221 includes a first surface 222 facing the circuit board 29 and a second surface 223 opposite the first surface 222. The pair of contact pieces 224, 224 protrude from the contact base plate 221 in a contact direction D3. The pair of contact pieces 224, 224 are each bent (downward) toward the circuit board 29 and face each other in the contact direction D3. The contact base plate 221 includes a protruding piece 230 protruding forward (opposite the direction toward the inside of the outer shell 320) from between the pair of contact pieces 224, 224.

[0051] The connecting plate 210 has a first surface 211 that is continuous with the first surface 222 and faces the circuit board 29, and a second surface 212 that is continuous with the second surface 223. The connecting plate 210 has a first portion 214 and a second portion 215. The first portion 214 extends rearward from the contact base plate 221. The first portion 214 is bent with respect to the contact base plate 221 so as to move away from the circuit board 29 as it extends rearward. The second portion 215 extends further rearward from the first portion 214. The second portion 215 is bent with respect to the first portion 214 so as to extend along the extending direction D1. The second portion 215 has a fitting opening 213 through which the above-mentioned protrusion 523 passes.

[0052] The central conductor connecting plate 240 has a first surface 241 that is continuous with the first surface 211 and faces the circuit board 29, and a second surface 242 that is continuous with the second surface 212. The central conductor connecting plate 240 extends further rearward from the second portion 215 along the extending direction D1.

[0053] 8, when viewed from the fitting direction D2, the width W1 of the connecting plate 210 is smaller than the width W2 of the central conductor connection plate 240. The width of the connecting plate 210 gradually decreases toward the contact base plate 221, and a constriction is formed between the contact base plate 221 and the connecting plate 210.

[0054] (Ground Contact) As shown in FIG. 9, the ground contact 300 includes the above-mentioned mating shell 310, a pair of arms 330, a ground base plate 340, a pair of first barrels 341, and a pair of second barrels 342. The ground contact 300 is formed by, for example, punching and bending a thin metal (for example, copper) plate material. As described above, the mating shell 310 has a notch 311. As a result, the mating shell 310 has both ends 312 in the circumferential direction. The notch 311 is located rearward in the extension direction D1 with respect to the center of the mating shell 310. The mating shell 310 includes a pair of recesses 313. The pair of recesses 313 are formed at two positions on the upper edge of the mating shell 310 that are aligned along the contact direction D3.

[0055] The pair of arms 330, 330 protrude rearward from both ends 312, 312 of the fitting shell 310 and form a part of the outer shell 320. The pair of arms 330, 330 face each other in the contact direction D3. A housing 400 is disposed between the pair of arms 330, 330. A pair of recesses 331, 331 are formed on the upper edges of the pair of arms 330, 330, respectively.

[0056] A pair of opposing plates 332, 332 protruding downward are formed on each of the pair of arms 330, 330. Each of the pair of opposing plates 332, 332 is bent toward between the pair of arms 330, 330 so as to intersect (for example, perpendicular to) the fitting direction D2.

[0057] The ground base plate 340 protrudes upward from the mating shell 310. The connection portion between the ground base plate 340 and the mating shell 310 is located forward with respect to the center of the mating shell 310. The ground base plate 340 is bent backward with respect to the mating shell 310, and blocks the space between the mating shell 310 and the pair of arms 330, 330 from above, and protrudes further backward than the pair of arms 330, 330 (see FIG. 3). In the following description of the ground base plate 340, "upper" and "lower" refer to the "upper" and "lower" in the state in which the ground base plate 340 is bent with respect to the mating shell 310.

[0058] The pair of first barrels 341, 341 protrude from the ground base plate 340 in opposite directions to each other in the contact direction D3, and are bent downward with respect to the ground base plate 340. The pair of first barrels 341, 341 cover at least a part of the outer surface of the pair of arms 330, 330, respectively. Each of the pair of first barrels 341, 341 includes a base 341a and a bent piece 341b. The base 341a covers the outer surface of one of the pair of arms 330, 330 from the side. The bent piece 341b is bent with respect to the base 341a and covers the outer surface of one of the pair of opposing plates 332, 332 from below. This allows the housing 400 to be held between the ground base plate 340 and the pair of opposing plates 332, 332. The pair of first barrels 341, 341 may be formed so as to further cover the outer surface of the outer conductor 13 behind the pair of arms 330, 330.

[0059] The pair of second barrels 342, 342 are provided rearward of the pair of first barrels 341, 341. The pair of second barrels 342, 342 protrude in opposite directions from the ground base plate 340 in the contact direction D3 and are bent downward with respect to the ground base 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 side. 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 part of the coaxial cable 10 where the outer conductor 13 is exposed is held between the ground base plate 340 and the pair of second barrels 342, 342, and the ground contact 300 and the outer conductor 13 are electrically connected.

[0060] (housing) The first housing 500 and the second housing 600 are formed by molding (e.g., injection molding) an insulating resin material. As shown in Figs. 10 and 11, the first housing 500 includes a first recess 521, a second recess 522, and a third recess 524 in addition to the above-mentioned receiving hole 511, the pair of introduction holes 512, 512, and the beam 513. The receiving hole 511, the pair of introduction holes 512, 512, and the beam 513 are formed in the first holding portion 501. The receiving hole 511 opens downward, and each of the pair of introduction holes 512, 512 opens downward into the receiving hole 511 and also opens upward. The beam 513 extends along the extension direction D1 and partitions the pair of introduction holes 512, 512.

[0061] As shown in Figs. 4 and 10, the first housing 500 may have an overhanging piece receiving portion 516 communicating with the beam 513. When the signal contact 200 has an overhanging piece 230, the overhanging piece 230 faces the overhanging piece receiving portion 516 and is sandwiched between the first holding portion 501 of the first housing 500 and the first holding portion 601 of the second housing 600. When the connector 100 and the mating connector 20 are mated, the contact portion 24 of the mating signal contact 21 enters between the pair of contact pieces 224, 224 of the signal contact 200. At this time, the pair of contact pieces 224, 224 are displaced upward while moving away from each other due to contact with the contact portion 24. Here, since the overhanging piece 230 is supported by both the first holding portions 501, 601, the contact base plate 221 does not enter the recess 611. This prevents the contact base plate 221 from being displaced, and the contact pieces 224, 224 are fitted in the correct positions with the contact portion 24. As a result, the reliability of the connection between the connector 100 and the mating connector 20 is ensured.

[0062] The first recess 521 is formed from the first holding portion 501 to the second holding portion 502, and the third recess 524 is formed in the second holding portion 502. The first recess 521 opens upward to receive the signal contact 200 from above. The first recess 521 accommodates the contact base plate 221 and the connecting plate 210 of the signal contact 200. The bottom surface of the first recess 521 is flush with the upper surface of the beam 513.

[0063] The first recess 521 has the above-mentioned protrusion 523 formed therein. The protrusion 523 protrudes upward from the bottom surface of the first recess 521. A third recess 524 surrounding the protrusion 523 may be formed in the bottom surface of the first recess 521. By forming the third recess 524, the protrusion 523 can be fitted into the fitting opening 213 while avoiding interference between the bottom of the protrusion 523 and the inner edge of the fitting opening 213.

[0064] The second recess 522 is continuous with the rear of the first recess 521 and opens upward. The second recess 522 accommodates the center conductor connection plate 240 of the signal contact 200. The depth of the second recess 522 in the fitting direction D2 is deeper than the depth of the first recess 521. The second recess 522 forms the accommodation space S1 for the center conductor 11 described above.

[0065] As shown in Figs. 12 and 13, the second housing 600 further includes a second back support 620 in addition to the back support 610 described above. The second back support 620 faces the coupling plate 210 and the center conductor connection plate 240 from the opposite side (upper side) to the side where the receiving hole 511 opens. The back support 610 is formed with a first holding portion 601, and the second back support 620 is formed with a part of the first holding portion 601 and a second holding portion 602. The back support 610 is formed with the recess 611 described above, and the second back support 620 is formed with the second recess 621 described above. The second back support 620 is further formed with a third recess 622 that opens toward the center conductor connection plate 240. The third recess 622 may be further opened toward the side (upper side) away from the center conductor connection plate 240. The second back support 620 faces the coupling plate 210 forward of the second recess 621 , and faces the central conductor connection plate 240 rearward of the second recess 621 .

[0066] 10 and 12, the first housing 500 may include a first fitting portion 530, and the second housing 600 may include a second fitting portion 630 that fits with the first fitting portion 530. The second housing 600 can be easily positioned with respect to the first housing 500. For example, the first fitting portion 530 may be a convex portion, and the second fitting portion 630 may be a concave portion that fits with the first fitting portion 530 that is a convex portion. The first fitting portion 530 may be a concave portion, and the second fitting portion 630 may be a convex portion that fits with the first fitting portion 530 that is a concave portion.

[0067] 10, the first housing 500 may include a pair of positioning posts 531, 531 as an example of the first fitting portion 530. Each of the pair of positioning posts 531, 531 protrudes upward from the first holding portion 501. The pair of positioning posts 531, 531 are aligned along the periphery of the first holding portion 501 in the contact direction D3, and the receiving hole 511, the pair of introduction holes 512, 512, and the beam 513 are located between the pair of positioning posts 531, 531.

[0068] 12, the second housing 600 may include a pair of positioning slits 631, 631 that respectively fit with the pair of positioning posts 531, 531. The pair of positioning slits 631, 631 are formed on the outer circumferential surface of the first holding portion 601, and open upward and downward, respectively.

[0069] As shown in FIG. 10, the first housing 500 may further include a claw 532 formed to resist a force that pulls the first housing 500 out of the ground contact 300 along the mating direction D2. For example, the first housing 500 further includes a pair of claws 532, 532 provided on the upper portions of the pair of positioning posts 531, 531, respectively. The pair of claws 532, 532 protrude in opposite directions to each other along the contact direction D3. The pair of claws 532, 532 respectively enter the pair of recesses 313, 313 described above (see FIG. 4). When a force acts to pull the first holding portion 501 downward from the mating shell 310 along the mating direction D2, each of the pair of claws 532, 532 gets caught by the mating shell 310 and resists the downward pulling force described above.

[0070] In the mating direction D2, the second housing 600 resists a force pushing the first housing 500 into the ground contact 300. In the mating direction D2, the positioning pillars 531 resist a force pulling the first housing 500 out of the ground contact 300. Therefore, the holding strength of the first housing 500 in the mating direction D2 can be improved.

[0071] 12, the second housing 600 may further include a pair of claws 632, 632. The pair of claws 632, 632 protrude in opposite directions from an upper portion of the second holding portion 602 along the contact direction D3 and fit into the pair of recesses 331, 331 described above, respectively. This allows the first housing 500 and the second housing 600 to be more reliably positioned with respect to the ground contact 300.

[0072] 11, the first housing 500 may further include a pair of mounting holes 541, 541 for mounting the sub-ground contact 700. The pair of mounting holes 541, 541 are formed in the second holding portion 502 at two positions aligned along the contact direction D3. Each of the pair of mounting holes 541, 541 opens downward. The second recess 522 is located further rearward between the pair of mounting holes 541, 541.

[0073] The first holding portion 501 and the second holding portion 502 are separated by a recess 551 that opens toward the circuit board 29. The recess 551 is pressed upward by the fitting portion 25 that is fitted into the fitting shell 310, and receives the sub-contact portion 701 that is displaced by the elastic deformation of the spring portion 702.

[0074] (Sub-ground contact) 14, the sub-ground contact 700 includes a mounting plate 711, a pair of mounting pieces 712, a sub-contact plate 721, and a connecting plate 731. The sub-ground contact 700 is formed by punching and bending a thin metal (e.g., copper) plate material. The thickness of the thin plate material for forming the sub-ground contact 700 may be thinner than the thickness of the thin plate material for forming the ground contact 300.

[0075] The mounting plate 711 spreads so as to intersect (for example, perpendicular to) the fitting direction D2, and at least partially covers the lower surface (surface facing the circuit board 29) of the second holding portion 502. The pair of mounting pieces 712, 712 protrude in opposite directions from each other from the mounting plate 711 in the contact direction D3. The pair of mounting pieces 712, 712 are each bent toward a direction away from the circuit board 29 (upward) and face each other in the contact direction D3. The pair of mounting pieces 712, 712 are press-fitted into the pair of mounting holes 541, 541 of the second holding portion 502, respectively. In this way, the mounting plate 711 is attached to the first housing 500.

[0076] The connecting plate 731 extends forward from the mounting plate 711. The mounting plate 711 is bent relative to the mounting plate 711 so as to move away from the circuit board 29 as it extends forward. The sub-contact plate 721 extends further forward from the mounting plate 711. The sub-contact plate 721 is bent relative to the connecting plate 731 so as to extend along the extending direction D1.

[0077] The sub-contact plate 721 is disposed in the recess 551 and extends so as to intersect (for example, perpendicular to) the fitting direction D2. An end of the sub-contact plate 721 constitutes the sub-contact portion 701 described above, and comes into contact with the fitting portion 25 along the fitting direction D2 when the fitting shell 310 is fitted into the fitting portion 25 of the mating ground contact 22. When the fitting portion 25 is annular, the edge of the sub-contact plate 721 may be formed on an arc in accordance with the inner edge of the fitting portion 25.

[0078] The recess 551 is formed so that the first housing 500 is separated upward from the sub-contact plate 721 and the connecting plate 731 when the mounting plate 711 is attached to the first housing 500 (see FIG. 3). This allows the sub-contact plate 721 to be displaced upward. The above-mentioned spring portion 702 is constituted by at least the connecting plate 731.

[0079] [Connector assembly procedure] An example of an assembly procedure for the connector assembly 1 will be described. First, as shown in Fig. 15, the center conductor connection plate 240 is supported by the anvil T1 with the second surface 242 facing downward and the first surface 241 facing upward, 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 vibration is applied from the horn T2 to the center conductor 11, thereby solid-state joining the center conductor 11 and the second surface 242.

[0080] Furthermore, as shown in FIG. 16, with the first housing 500 and the sub-ground contact 700 oriented in the same direction, the pair of mounting pieces 712, 712 are press-fitted into the pair of mounting holes 541, 541, respectively, to mount the sub-ground contact 700 to the first housing 500.

[0081] 17, the signal contact 200 is accommodated in the first housing 500 together with the central conductor 11 with the first surface 241 facing downward. At this time, the pair of contact pieces 224, 224 are inserted into the pair of introduction holes 512, 512, respectively, the protrusion 523 is inserted into the fitting opening 213, and the signal contact 200 is pushed to the bottom surface of the first recess 521. As a result, the pair of contact pieces 224, 224 are disposed in the receiving hole 511, and the contact base plate 221 is supported by the beam 513.

[0082] Next, the second housing 600 is attached to the first housing 500 from above. As a result, the signal contacts 200 are held in the housing 400. Next, the housing 400 holding the signal contacts 200 is accommodated from above into the mating shell 310 and between the pair of arms 330, 330. As a result, the first holding portion 501 and the first holding portion 601 are accommodated in the mating shell 310, and the second holding portion 502 and the second holding portion 602 are accommodated between the pair of arms 330, 330.

[0083] Next, the ground base plate 340 is bent backward with respect to the mating shell 310. As a result, the mating shell 310 and the gap between the pair of arms 330, 330 are blocked from above, the pair of arms 330, 330 are accommodated between the pair of first barrels 341, 341, and the outer conductor 13 is accommodated between the pair of second barrels 342, 342. In this state, the bent piece 341b is bent with respect to the base 341a. As a result, the second holding portion 502 and the second holding portion 602 are held between the pair of opposing plates 332, 332 and the ground base plate 340. In addition, the bent piece 342b is bent with respect to the base 342a. As a result, the portion of the coaxial cable 10 where the outer conductor 13 is exposed is held between the ground base plate 340 and the bent piece 342b, and the electrical connection between the ground contact 300 and the outer conductor 13 is ensured.

[0084] 〔summary〕 The above-described embodiment includes the following configurations. (1) A conductive signal contact 200 connected to the central conductor of a coaxial cable 10 and in contact with a mating signal contact 21 of a mating connector 20, a conductive ground contact 300 connected to an outer conductor 13 of the coaxial cable 10 and in contact with a mating ground contact 22 of the mating connector 20, and an insulating housing 400 that holds the signal contact 200 in an insulated state from the ground contact 300 and is accommodated in the ground contact 300, the ground contact 300 having a mating shell 310 extending along a mating direction D2 when mating with the mating connector 20 and mating with the mating ground contact 22, and an outer shell 320 extending along an extension direction D1 perpendicular to the mating direction D2, adjacent to the mating shell 310, holding the coaxial cable 10 outside the mating shell 310 and connected to the outer conductor 13, The signal contact 200 has a contact base plate 221 that intersects with the mating direction D2, and a pair of contact pieces 224, 224 that are bent relative to the contact base plate 221 so as to face each other in an opposing direction perpendicular to the mating direction D2 and the extension direction D1 within the mating shell 310, and each contact the mating signal contact 21 from both sides in the opposing direction. The housing 400 has a receiving hole 511 that opens toward the direction in which the pair of contact pieces 224, 224 bend and extend relative to the contact base plate 221, and receives the mating signal contact 21, a pair of introduction holes 512, 512 that respectively guide the pair of contact pieces 224, 224 into the receiving hole 511, and a beam 513 that extends along the extension direction D1 to partition the pair of introduction holes 512, 512, and faces the contact base plate 221 between the pair of contact pieces 224, 224. When the connector 100 is removed from the mating connector 20, the force of pulling out the mating signal contact 21 from the receiving hole 511 acts on the pair of contact pieces 224, 224. In particular, in a microconnector, the signal contact 200 may not be able to resist the force of pulling out of the receiving hole 511, and may be deformed to make it difficult to reuse it. For this reason, it was necessary to provide a support for the signal contact 200 by the housing 400, as in the front end of Patent Document 1. However, the protruding support, as in the front end of Patent Document 1, may be a source of noise. According to the present connector 100, the force of pulling out of the receiving hole 511 is received by the beam 513 facing the contact base plate 221, so there is no need to provide a protruding support separately. Therefore, it is possible to provide a connector 100 that is effective in both reinforcing the signal contact 200 and improving the reliability of the transmission of high-frequency signals.

[0085] (2) The connector (100) described in (1), wherein the housing (400) further includes a back support (610) that faces the contact base plate (221) from the side opposite to where the receiving hole (511) opens. The force in the direction of pushing the signal contact 200 deeper into the receiving hole 511 is received by the back support 610 opposed to the contact base plate 221. Therefore, the signal contact 200 can be further reinforced.

[0086] (3) The connector 100 according to (2), wherein the distance G1 between the back support 610 and the beam 513 in the mating direction D2 is greater than the thickness of the contact base plate 221 and is smaller than twice the thickness of the contact base plate 221. By reinforcing the signal contacts 200 while preserving their flexibility, the usability of the connector 100 can be improved.

[0087] (4) The connector 100 according to (3), wherein the back support 610 has a recess 611 that opens toward the contact base plate 221. While the force in the direction of pushing the receiving hole 511 deeper is received by the back support 610, the deformation room of the contact base is increased, and the pair of contact pieces 224, 224 can be smoothly brought into contact with the mating signal contact 21.

[0088] (5) A connector 100 described in any of (1) to (4), wherein the contact base plate 221 includes a protruding piece 230 protruding from between a pair of contact pieces 224, 224 in a direction opposite to the direction toward the interior of the outer shell 320, and in the extension direction D1, the entire length of the protruding piece 230 is located within the range of the beam 513. Since the overall length of the projection piece 230 is restricted so as to fall within the range of the beam 513, noise from the projection piece 230 can be reduced.

[0089] (6) A connector 100 described in any of (2) to (4), wherein the housing 400 has a first housing 500 and a second housing 600 that is separate from the first housing 500 and overlaps the first housing 500 along the mating direction D2, the first housing 500 includes a receiving hole 511, a pair of introduction holes 512, 512, and a beam 513, the second housing 600 includes a back support 610, and the signal contacts 200 are incorporated between the first housing 500 and the second housing 600. Since the receiving hole 511, the pair of introduction holes 512, 512, the beam 513, and the back support 610 can be formed separately, productivity is improved.

[0090] (7) The connector (100) according to (6), wherein the thickness of the second housing (600) in the mating direction (D2) is 80% or more of the thickness of the first housing (500). By arranging the signal contacts 200 near the center of the ground contacts 300 in the mating direction D2, the characteristic impedance can be improved.

[0091] (8) A connector 100 described in any of (5) to (7), wherein the signal contacts 200 further include a center conductor connecting plate 240 extending into the outer shell 320 crossing the mating direction D2 and connected to the center conductor 11, and a connecting plate 210 crossing the mating direction D2 and connecting the contact base plate 221 to the center conductor connecting plate 240, and the first housing 500 further includes a protrusion that penetrates the connecting plate 210 and positions the signal contacts 200 relative to the first housing 500. The signal contact 200 can be accurately positioned with respect to the first housing 500 while ensuring flexibility of the signal contact 200 within the mating shell 310 and a connection space for the central conductor 11 within the outer shell 320 .

[0092] (9) The connector (100) according to (8), wherein the second housing (600) further includes a second recess (621) that opens toward the connecting plate (210) so as to accommodate the protrusion that penetrates the connecting plate (210). The reliability of the positioning of the signal contacts 200 relative to the first housing 500 can be improved.

[0093] (10) A connector 100 according to any of (1) to (9), wherein the ground contact 300 further has a ground base plate 340 extending in an extension direction D1 intersecting the mating direction D2, the mating shell 310 protrudes from the ground base plate 340 toward the opening of the receiving hole 511 and surrounds the mating ground contact around the mating direction D2, the outer shell 320 faces the ground base plate 340 from the opening of the receiving hole 511 and includes opposing plates 332, 332 that hold the housing 400 between itself and the ground base plate 340, and the connector 100 further includes a conductive sub-ground contact 700 that is held in the housing 400 so as to contact the opposing plates 332, 332 from the inside and protrudes from the opposing plates 332, 332 toward the mating ground contact 22 mated with the mating shell 310. Noise can be further reduced.

[0094] (11) A connector 100 as described in (10), wherein the signal contact 200 extends into the outer shell 320 crossing the mating direction D2 and further includes a center conductor connecting plate 240 connected to the center conductor 11, and the connector 100 has an accommodation space S1 for the center conductor 11 between the sub-ground contact 700 and the center conductor connecting plate 240. By increasing both the gap G1 between the signal contact 200 and the sub-ground contact 700 and the accommodation space S1 for the central conductor 11, reliability can be improved.

[0095] (12) The connector 100 described in (11), wherein the spacing G1 between the central conductor connecting plate 240 and the ground base plate 340 is smaller than the spacing G1 between the contact base plate 221 and the ground base plate 340, and the signal contact 200 further has a connecting plate 210 that is bent while intersecting the mating direction D2 to connect the contact base plate 221 to the central conductor connecting plate 240. The position of the contact base plate 221 in the mating direction D2 and the positions of the center conductor connection plate 240 and the center conductor 11 in the mating direction D2 can be optimized independently.

[0096] (13) The connector 100 according to any one of (10) to (12), wherein the sub-ground contact 700 has a sub-contact portion 701 that contacts the mating ground contact 22 along the mating direction D2. After the fitting shell 310 is fitted to the mating ground contact, the sub-contact portion 701 comes into contact with the mating ground contact 22. Therefore, when fitting the fitting shell 310 to the mating ground contact, the sub-contact portion 701 is unlikely to get in the way.

[0097] (14) The connector 100 described in (13), in which the sub-ground contact 700 has a spring portion 702 that elastically deforms toward the ground base plate 340 when the mating shell 310 is mated with the mating ground contact 22, and keeps the sub-contact portion 701 in contact with the mating ground contact 22 by the reaction force of the elastic deformation. This makes it possible to suppress variation in the noise reduction effect of the sub-ground contact 700.

[0098] (15) The connector (100) described in (14), wherein the thickness of the sub-ground contact (700) is smaller than the thickness of the ground base plate (340) and the opposing plates (332, 332). This makes it possible to suppress variation in the noise reduction effect of the sub-ground contacts while also improving the fitting strength.

[0099] (16) A conductive signal contact 200 connected to the central conductor 11 of the coaxial cable 10 and in contact with a mating signal contact 21 of a mating connector 20, a conductive ground contact 300 connected to the outer conductor 13 of the coaxial cable 10 and in contact with a mating ground contact 22 of the mating connector 20, and an insulating housing 400 that holds the signal contact 200 in an insulated state from the ground contact 300 and is accommodated in the ground contact 300, wherein the signal contact 200 has contact portions 224, 224 that contact the mating signal contact and a central conductor connection plate 240 connected to the central conductor 11, and the ground contact 300 has a ground base extending along an extension direction D1 intersecting a mating direction D2 in which the ground contact 300 is mated with the mating connector 20. the mating shell 310 includes a mating plate 340, a mating shell 310 protruding from the ground base plate 340 and surrounding the contact portions 224, 224 around the mating direction D2, and an outer shell 320 outside the mating shell 310, which holds the housing 400 between the ground base plate 340 and the outer shell 320 and accommodates the center conductor connecting plate 240, the connector 100 further includes a conductive sub-ground contact 700 held in the housing 400 so as to contact the outer shell 320 from the inside away from the ground base plate 340, and protruding from the outer shell 320 toward the mating ground contact 22 mated with the mating shell 310, and an accommodation space S1 for the center conductor 11 is provided between the sub-ground contact 700 and the center conductor connecting plate 240. The sub-ground contact 700 complements the shielding properties of the ground contact 300, while increasing both the gap G1 between the signal contact 200 and the sub-ground contact 700 and the accommodation space S1 for the central conductor, thereby improving the reliability of insulation. [Explanation of symbols]

[0100] 10...coaxial cable, 11...center conductor, 13...outer conductor, 100...connector, 20...mating connector, 21...mating signal contact, 22...mating ground contact, 29...circuit board, 200...signal contact, 300...ground contact, 310...mating shell, 320...outer shell, 400...housing, D2...mating direction, D1...extension direction, 221...contact base plate, 224, 224...contact piece, D3...contact direction, 5 11...receiving hole, 512, 512...introduction hole, 513...beam, 610...back support, G1...spacing, 611...recess, 230...extension piece, 500...first housing, 600...second housing, 240...center conductor connection plate, 210...connecting plate, 621...second recess, 340...ground base plate, 332, 332...opposing plate, 700...sub-ground contact, S1...accommodating space, 701...sub-contact portion, 702...spring portion.

Claims

1. a conductive signal contact connected to a central conductor of the coaxial cable and adapted to contact a mating signal contact of a mating connector; a conductive ground contact connected to an outer conductor of the coaxial cable and in contact with a mating ground contact of the mating connector; an insulating housing that holds the signal contacts insulated from the ground contacts and is housed in the ground contacts; Equipped with The ground contact is a mating shell extending along a mating direction when mating with the mating connector and mating with the mating ground contact; an outer shell extending in an extension direction perpendicular to the mating direction, adjacent to the mating shell, holding the coaxial cable outside the mating shell, and connected to the outer conductor; having The signal contact is a contact base plate intersecting the mating direction; a pair of contact pieces bent relative to the contact base plate in the mating shell so as to face each other in an opposing direction perpendicular to the mating direction and the extending direction, and contacting the mating signal contact from both sides in the opposing direction; having The housing includes: a receiving hole that opens toward a direction in which the pair of contact pieces bend and extend relative to the contact base plate and receives the mating signal contact; a pair of introduction holes for respectively guiding the pair of contact pieces into the receiving hole; a beam extending along the extending direction to separate the pair of introduction holes and facing the contact base plate between the pair of contact pieces; A connector having

2. The housing further includes a back support facing the contact base plate from the opposite side to where the receiving hole is opened. The connector according to claim 1.

3. A distance between the back support and the beam in the fitting direction is greater than a thickness of the contact base plate and is smaller than twice the thickness of the contact base plate. The connector according to claim 2.

4. The back support has a recess that opens toward the contact base plate. The connector according to claim 3.

5. The contact base plate is a protruding piece protruding from between the pair of contact pieces in a direction opposite to the direction toward the inside of the outer shell, In the extension direction, The entire length of the protruding piece is located within the range of the beam. The connector according to any one of claims 1 to 4.

6. 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; having The first housing includes the receiving hole, the pair of introduction holes, and the beam. The second housing includes the back support, The signal contacts are mounted between the first housing and the second housing. The connector according to claim 2.

7. In the fitting direction, The thickness of the second housing is The thickness of the first housing is 80% or more. The connector according to claim 6.

8. The signal contact is a center conductor connection plate extending into the outer shell in a direction intersecting the mating direction and connected to the center conductor; a connecting plate that connects the contact base plate to the central conductor connecting plate in a direction intersecting the fitting direction; and The first housing further includes a protrusion that passes through the connecting plate and positions the signal contact relative to the first housing. The connector according to claim 6.

9. The second housing further includes a second recess that opens toward the connecting plate so as to accommodate the protrusion that penetrates the connecting plate. The connector according to claim 8.

10. The ground contact further includes a ground base plate extending in the extension direction and intersecting the fitting direction, the mating shell protrudes from the ground base plate toward the receiving hole and surrounds the mating ground contact in the mating direction; the outer shell includes an opposing plate that faces the ground base plate from a side where the receiving hole is open and holds the housing between the opposing plate and the ground base plate; The connector further includes a conductive sub-ground contact that is held in the housing so as to contact the opposing plate from an inside thereof and that protrudes from the opposing plate toward the mating ground contact mated with the mating shell. The connector according to any one of claims 1 to 3.

11. The signal contact further includes a center conductor connection plate extending into the outer shell transversely to the mating direction and connected to the center conductor; the connector has a space for accommodating the center conductor between the sub-ground contact and the center conductor connection plate; The connector of claim 10.

12. a distance between the central conductor connection plate and the ground base plate is smaller than a distance between the contact base plate and the ground base plate; The signal contact further includes a connecting plate that is bent in a direction intersecting the mating direction to connect the contact base plate to the central conductor connecting plate. The connector of claim 11.

13. the sub-ground contact has a sub-contact portion that contacts the mating ground contact along the mating direction; The connector of claim 10.

14. the sub-ground contact has a spring portion that elastically deforms toward the ground base plate when the fitting shell is fitted to the mating ground contact, and maintains the sub-contact portion in contact with the mating ground contact by a reaction force of the elastic deformation. The connector of claim 13.

15. the thickness of the sub-ground contact is less than the thickness of the ground base plate and the facing plate; The connector of claim 14.

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