JP2015130266A - Coaxial connector device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coaxial connector device mounted on a coaxial cable and capable of surely and firmly holding the coaxial cable even under the situation where a diameter of the coaxial cable is reduced.SOLUTION: A shell part 23 of a ground contact member 12 includes a release hole 30 and a bending and engaging piece 27 extending from the circumference of the release hole 30. In the state where a central conductor connection part 21 of a signal contact member 11 is being connected with a central conductor 41 of a coaxial cable 40 and the shell part 23 of the ground contact member 12 is being contacted with an outer conductor 43 of the coaxial cable 40, the bending and engaging piece 27 is bent and engaged from the outside of the coaxial cable 40 and the coaxial cable 40 is pressed toward the release hole 30, thereby providing the state where the coaxial cable 40 is being partially pushed into the release hole 30.

Description

  In the invention described in the claims of the present application, the central conductor and the outer conductor surrounding the central conductor via the inner insulator are respectively connected to the central conductor and the outer conductor of the coaxial cable formed by covering with a skin insulator. The present invention relates to a coaxial connector device that includes a signal contact member and a ground contact member that are insulated from each other, and is fitted and connected to a mating connector device that is another connector device.

  For transmission of high-frequency signals between multiple electrical / electronic components, electrical devices, or electronic devices, a signal transmission path that is not easily affected by external noise is formed, and a central conductor and an outer surface that surrounds it through an internal insulator A coaxial cable in which a conductor is covered with a skin insulator is often used. For example, when a coaxial cable is connected to a circuit board that handles high-frequency signals, the high-frequency signal is transmitted from the circuit board to the outside through the coaxial cable, or from the outside to the circuit board through the coaxial cable of the high-frequency signal. Transmission takes place.

  When the coaxial cable is connected to the circuit board, the coaxial connector device including the signal contact member connected to the central conductor of the coaxial cable and the ground contact member connected to the outer conductor of the coaxial cable is connected to one end of the coaxial cable. The coaxial connector device includes, for example, a central signal contact portion to which a high-frequency signal handled in a circuit board is supplied and an annular ground contact portion that surrounds the central signal contact portion and is supplied with a ground potential. It is made to connect with the other party connector apparatus with which it equipped and was attached to the circuit board. Such a connection of the coaxial connector device with the counterpart connector device is performed, for example, with the ground contact member of the coaxial connector device being fitted and connected to the annular ground contact portion of the counterpart connector device. Is performed in a state of being contact-connected to the center signal contact portion of the mating connector device.

  When the coaxial connector device is connected to the counterpart connector device, the counterpart connector device attached to the circuit board has, for example, a central signal contact portion and an annular ground contact portion mounted thereon as components mounted on the circuit board. The coaxial connector device attached to one end of the coaxial cable is engaged with the counterpart connector device in a direction from the upper part mounting surface of the circuit board toward the component mounting surface. The ground contact member of the coaxial connector device is fitted and connected to the annular ground contact portion of the counterpart connector device, and the signal contact member of the coaxial connector device is contact-connected to the center signal contact portion of the counterpart connector device. Accordingly, the coaxial connector device projects from the component mounting surface of the circuit board on the circuit board to which the counterpart connector device is attached.

  Such a coaxial connector device holds a coaxial cable when the central conductor and an outer conductor that surrounds the central conductor are attached to one end of a coaxial cable that is covered with a skin insulator. It will be attached to the coaxial cable. Therefore, in the conventional coaxial connector device, the ground contact member connected to the outer conductor of the coaxial cable is provided with a holding portion for the coaxial cable, and the holding conductor connects the central conductor to the signal contact member. It has been proposed that the outer conductor hold the coaxial cable connected to the ground contact member (see, for example, Patent Document 1).

  The coaxial connector device (coaxial electrical connector (10)) disclosed in Patent Document 1 includes a central conductor connection portion (connection portion (connecting portion (1)) to which a central conductor (core wire (C1)) of a coaxial cable (cable (C)) is connected. 24)) and a signal contact member (terminal (13)) having a pair of contact engaging parts (contact part (25)) extending therefrom, an annular fitting part (fitting cylindrical part (14)), and folding Held by a ground contact member (external conductor (11)) with a shell part (lid part (16), surrounding part (17), holding part (20)) that can be bent and an annular fitting part of the ground contact member And an insulating housing member (dielectric material (12) for supporting the signal contact member and the ground contact member in a state where they are insulated from each other. )). The holding part (20) constituting the shell part of the ground contact member has a first holding part (20A) and a second holding part (20B).

  Then, with the central conductor of the coaxial cable connected to the central conductor connection portion of the signal contact member, the shell portion of the ground contact member is bent toward the annular fitting portion, and further, a holding portion that constitutes the shell portion ( The first holding part (20A) of 20) is bent so as to wrap the coaxial cable, and the outer conductor (shield wire (C2)) of the coaxial cable is engaged and held from the outside, and the holding part constituting the shell part The second holding portion (20B) of the portion (20) is also bent so as to wrap the coaxial cable, and engages and holds the outer surface insulator (outer skin) of the coaxial cable from the outside. At that time, the first holding portion (20A) engages and holds the outer conductor of the coaxial cable, whereby the outer conductor of the coaxial cable is connected to the ground contact member. In this way, the first holding portion (20A) engages and holds the outer conductor of the coaxial cable, and the second holding portion (20B) engages and holds the outer surface insulator of the coaxial cable, so that the ground contact member The holding portion (20) provided in the center holds the coaxial cable in which the central conductor is connected to the signal contact member and the outer conductor is connected to the ground contact member.

JP-A-2005-183212 (paragraphs 0024 to 0034, paragraphs 0044 to 0046, and FIGS. 1 to 3)

  In the conventionally proposed coaxial connector device as disclosed in the above-mentioned Patent Document 1, depending on the state of the coaxial cable attached to one end, the coaxial cable may be securely and firmly held. There is a risk that it will not be possible. That is, in recent years, along with the miniaturization of various electric / electronic components including circuit boards, there is an increasing demand for reducing the diameter of coaxial cables connected to them. When using a coaxial cable that has been reduced in diameter in response to the demands for reducing the diameter of the coaxial cable and attempting to attach a coaxial connector to one end of the coaxial cable, the coaxial cable can be held securely and firmly depending on the conventionally proposed coaxial cable connector. There is a risk that it will not be performed.

  For example, a coaxial cable with a reduced diameter has a reduced strength due to the reduction of the center conductor wire diameter, inner insulator thickness, outer conductor thickness, and skin insulator thickness. doing. Therefore, for example, a coaxial connector device conventionally proposed disclosed in Patent Document 1 is applied to such a coaxial cable with a reduced diameter, so that the holding portion constituting the shell portion of the ground contact member is applied. The first holding part and the second holding part of the part are bent so as to wrap the coaxial cable, and the coaxial cable is held by engaging and holding the outer conductor and skin insulator of the coaxial cable from the outside. The coaxial cable side is insufficient in strength, and the first holding part and the second holding part do not properly hold the outer side of the outer conductor of the coaxial cable and the outer surface of the insulation, and as a result, the coaxial connector This leads to a situation in which the coaxial cable is not reliably and firmly held by the device.

  In view of this, the invention described in the claims of the present application includes a signal contact member connected to the central conductor of the coaxial cable, a ground contact member connected to the outer conductor of the coaxial cable, and a contact member. An insulating housing member that supports the ground contact member in a mutually insulated state. Even when the coaxial cable is reduced in diameter, the center conductor is connected to the signal contact member and the outer conductor is a ground contact. The coaxial cable connected to the member can be securely and firmly held, and the direction in which the coaxial cable protrudes from the component mounting surface on the circuit board when coupled to the mating connector device attached to the component mounting surface on the circuit board. Coaxial connector that can avoid the increase in thickness dimension To provide other equipment.

  A coaxial connector device according to any one of claims 1 to 6 in the claims of the present application (hereinafter referred to as a coaxial connector device according to the present invention) is connected to a central conductor of a coaxial cable. A signal contact member having a center conductor connection portion to be connected and a contact engagement portion extending from the center conductor connection portion to be contact-connected to the external signal contact portion, and an annular shape to be fitted and connected to the external ground contact portion A ground contact member having a shell portion that extends from the fitting portion and the annular fitting portion so as to be bent and is in contact with the outer conductor of the coaxial cable, and the signal contact member and the ground contact member are mutually insulated. And an insulating housing member that is supported. The shell portion of the ground contact member is provided with an escape hole and a bent engagement piece extending from the periphery of the escape hole, so that the central conductor connecting portion of the signal contact member is connected to the central conductor of the coaxial cable. In addition, with the shell portion of the ground contact member in contact with the outer conductor of the coaxial cable, the bending engagement piece provided on the shell portion of the ground contact member is bent and engaged with the coaxial cable from the outside. In addition, the coaxial cable is pressed toward the escape hole provided in the shell portion of the ground contact member, and the coaxial cable is partially pushed into the escape hole. The

  In such a coaxial connector device according to the present invention, for example, the escape hole provided in the shell portion of the ground contact member is a pair of a through hole penetrating the shell portion or the outer conductor of the coaxial cable in the shell portion. A pair of bent engagement pieces are provided with a recess opening in the contact surface and sandwiching an escape hole provided in the shell portion. Furthermore, the bending engagement piece provided in the shell portion takes, for example, a position facing the escape hole provided in the shell portion with a coaxial cable interposed between the bending engagement piece and the bending engagement piece. The dimension of the bending engagement piece in the direction in which the coaxial cable arranged between the escape hole extends is smaller than the dimension of the escape hole in the direction in which the coaxial cable arranged between the relief hole and the bending engagement piece extends. Selected.

  Then, the bending contact piece is formed with the central conductor connecting portion of the signal contact member being in a connection state with the central conductor of the coaxial cable and the shell portion of the ground contact member being in contact with the outer conductor of the coaxial cable. However, when it is bent and engaged with the coaxial cable from the outside, the coaxial cable is pressed toward the escape hole, and the coaxial cable is partially pushed into the escape hole. Each of the pair of bending engagement pieces provided across the escape hole is bent toward the escape hole so as to face the escape hole with a coaxial cable interposed therebetween. A portion of the coaxial cable placed on the coaxial cable is engaged and pressed toward the escape hole from the outside of the skin insulator. Assume a state of being pressed into relief the hole. At this time, if the dimension of the bending engagement piece is selected to be smaller than the dimension of the escape hole in the direction in which the coaxial cable arranged between the relief hole and the bending engagement piece extends, the bending engagement piece Thus, the state where the coaxial cable is partially pushed into the escape hole can be easily taken.

  In the coaxial connector device according to the present invention described above, the shell portion of the ground contact member is provided with the escape hole and the bending engagement piece extending from the periphery of the escape hole, and the central conductor connecting portion of the signal contact member is the coaxial cable. The bending engagement piece provided on the shell portion of the ground contact member is bent while the shell portion of the ground contact member is in contact with the outer conductor of the coaxial cable. The coaxial cable is engaged from the outside and pressed against the relief hole provided in the shell portion of the ground contact member, and the coaxial cable is partially pushed into the relief hole. As a result, the coaxial cable was partially bent and provided on the shell. With the state of being pushed into starvation hole, it will be firmly held by the shell portion of the ground contact member.

  Therefore, according to the coaxial connector device according to the present invention, even when the diameter of the coaxial cable is reduced, the coaxial cable in which the center conductor is connected to the signal contact member and the outer conductor is connected to the ground contact member. The holding can be performed reliably and firmly. In addition, since it does not affect the dimension of the circuit board protruding from the component mounting surface when connected to the mating connector device attached to the component mounting surface of the circuit board, the direction protruding from the component mounting surface of the circuit board. It is possible to avoid an increase in the thickness dimension, which is the dimension.

It is a perspective view which shows an example of the coaxial connector apparatus which concerns on this invention. It is a perspective view which shows an example of the coaxial connector apparatus which concerns on this invention. It is a perspective view which shows the process in which an example of the coaxial connector apparatus based on this invention is mounted | worn with the one end part of a coaxial cable. It is a perspective view which shows the state with which the example of the coaxial connector apparatus based on this invention was mounted | worn with the one end part of the coaxial cable. It is a perspective view which shows the state with which the example of the coaxial connector apparatus based on this invention was mounted | worn with the one end part of the coaxial cable. It is a perspective view which shows an example of the other party connector apparatus by which an example of the coaxial connector apparatus which concerns on this invention is fitted and connected with a part of circuit board to which it was attached. It is a perspective view which shows the state by which the example of the coaxial connector apparatus which concerns on this invention was fitted and connected with an example of the other party connector apparatus. It is a perspective view which shows the state by which the example of the coaxial connector apparatus which concerns on this invention was fitted and connected with an example of the other party connector apparatus. It is a side view which shows the state by which the example of the coaxial connector apparatus which concerns on this invention was fittingly connected with an example of the other party connector apparatus. It is a side view which shows the state by which the example of the coaxial connector apparatus which concerns on this invention was fittingly connected with an example of the other party connector apparatus. It is sectional drawing which shows the XI-XI line cross section in FIG.

  The form for implementing this invention is demonstrated with the Example about this invention described below.

  1 and 2 show an example of a coaxial connector device according to the present invention. 1 and FIG. 2, the coaxial connector device 10 that constitutes an example of the coaxial connector device according to the present invention is a coaxial cable having a center conductor and an outer conductor in actual use (an example will be described later as a coaxial cable 40). 3 is a mating connector device (an example is shown in FIG. 6 described later as the mating connector device 50) attached to one of the components mounted on the circuit board. )).

  The coaxial connector device 10 includes, as main components, a signal contact member 11 formed of a conductive material, a ground contact member 12 formed of a conductive material, and a signal contact formed of an insulating material such as a synthetic resin material. And an insulating housing member 13 that supports the member 11 and the ground contact member 12 in a mutually insulated state. The signal contact member 11 is electrically connected to the center conductor exposed at one end of the coaxial cable having the center conductor and the outer conductor, and the ground contact member 12 is a coaxial having the center conductor and the outer conductor. It is electrically connected to the outer conductor exposed at one end of the cable.

  The insulating housing member 13 includes a base portion 14 that supports the signal contact member 11 at a central portion thereof, a bending contact portion 15 that extends from one end of the base portion 14 so as to be bent and is bent toward the base portion 14. have. The bent contact portion 15 forms a plate-like portion as a whole, and is bent against the signal contact member 11 held by the base portion 14 when bent toward the base portion 14.

  The signal contact member 11 includes a fixed portion 16 having a flat plate shape fixed to the base portion 14 of the insulating housing member 13, a movable flat plate portion 18 extending from the fixed portion 16 via a bent portion 17, and a fixed portion 16. And a pair of elastic tongue pieces 19 extending from each other (one of the pair of elastic tongue pieces 19 does not appear in the figure). The pair of elastic tongue portions 19 penetrates through-hole portions 20 (shown in FIG. 11) formed in the central portion of the base portion 14 of the insulating housing member 13, and each of the elastic tongue pieces 19 is externally connected. The contact engaging part connected in contact with the signal contact part is configured.

  The movable flat plate-like portion 18 can be elastically oscillated in the direction approaching the fixed portion 16 and the direction away from the fixed portion 16 with the bent portion 17 as the oscillating fulcrum portion. And the movable flat plate-like portion 18 is in a state of facing the fixed portion 16 when the central conductor of the coaxial cable is arranged on the fixed portion 16 and when it is close to the fixed portion 16, thereby The central conductor of the coaxial cable is mechanically held between the fixed portion 16 and the movable flat plate-like portion 18. The fixed portion 16 and the movable flat plate-like portion 18 are electrically connected to the central conductor by mechanically holding the central conductor of the coaxial cable, and the central conductor connecting portion 21 in the signal contact member 11 is made. Is configured. Accordingly, the contact engaging portion formed by the elastic tongue piece portion 19 extends from the central conductor connecting portion 21.

  The signal contact member 11 having the central conductor connecting portion 21 and the pair of elastic tongue portions 19 each including the fixed portion 16 and the movable flat plate portion 18 is punched into, for example, an elastic metal plate material. It is integrally formed by bending.

  The ground contact member 12 includes an annular fitting portion 22 that surrounds the base portion 14 of the insulating housing member 13 except for a portion thereof, a shell portion 23 that extends from one end of the annular fitting portion 22, and an annular fitting portion. 22 has a cable support portion 24 extending from a portion facing the portion where the shell portion 23 extends. The other end of the annular fitting portion 22 and the end portion of the base portion 14 of the insulating housing member 13 surrounded by the annular fitting portion 22 are fitted and connected to the ground contact portion of the mating connector device to which the coaxial connector device 10 is coupled. Part.

  The annular contact portion 22 of the ground contact member 12 is provided with a plurality of notches 22a into which a plurality of protruding engaging portions 14a provided on the base portion 14 of the insulating housing member 13 are inserted and engaged. Yes. The plurality of notches 22a are configured such that a plurality of protruding engaging portions 14a provided on the base portion 14 of the insulating housing member 13 are inserted and engaged with each other, whereby the ground contact member 12 is insulated. It is assumed that it is supported by the housing member 13. As a result, the insulating housing member 13 supports the signal contact member 11 and the ground contact member 12 with the base portion 14 in a mutually insulated state.

  When the shell 23 is bent toward the annular fitting portion 22 and the cable support portion 24 extending therefrom, the bent contact portion 15 of the insulating housing member 13 extends along the shell portion 23. Along with this, the bent contact portion 15 in the insulating housing member 13 is bent, and the center conductor is connected to the outer conductor of the coaxial cable that is electrically connected to the center conductor connecting portion 21 of the signal contact member 11. The In addition, the cable support portion 24 plays a role of supporting the coaxial cable whose center conductor is electrically connected to the center conductor connection portion 21 of the signal contact member 11 from the outside of the exposed outer conductor.

  The shell portion 23 is bent and a pair of first bending engagement pieces 25 which are engaged with the cable support portion 24 are bent and the central conductor is the central conductor of the signal contact member 11. A pair of second bent engagement pieces 26 that are to be engaged with the outer conductor of the coaxial cable connected to the connection portion 21, and the center conductor is bent and the center conductor is the center conductor connection portion 21 of the signal contact member 11. A pair of third bent engagement pieces 27 are provided which will engage with the skin insulation of the coaxial cable connected to. The shell portion 23 is provided with a relief hole 30 at a portion between the pair of third bending engagement pieces 27. Therefore, in the shell portion 23, a pair of third bending engagement pieces 27 are provided with the escape hole 30 interposed therebetween. Further, the shell portion 23 is provided with a recess 31 on the inner surface side thereof.

  When the pair of first bending engagement pieces 25, the pair of second bending engagement pieces 26, and the pair of third bending engagement pieces 27 are bent, each other is shown in FIG. The state shifts from the facing state to the bent state in the approaching direction.

  In the example of the coaxial connector device according to the present invention shown in FIGS. 1 and 2, that is, in the coaxial connector device 10, the relief hole 30 provided in the shell portion 23 is a pair of third bending members in the shell portion 23. It is formed by a through-hole penetrating a portion between the joining pieces 27. However, in place of the through hole, the escape hole 30 is an inner surface side of a portion of the shell portion 23 between the pair of third bending engagement pieces 27, that is, a contact surface with the skin insulator of the coaxial cable. You may form by the recessed part provided in the side.

  As shown in FIG. 1, the dimension of the relief hole 30 in the direction in which the shell portion 23 extends from the annular fitting portion 22 of the ground contact member 12 (shown by an arrow S in FIG. 1, hereinafter referred to as S direction). Lh and the dimension Lt of each of the pair of third bending engagement pieces 27 are selected so that the dimension Lt is smaller than the dimension Lh.

  The ground contact member 12 having the annular fitting portion 22 as described above, the shell portion 23 extending from one end thereof, and the cable support portion 24 extending from the annular fitting portion 22 is, for example, punched and bent into an elastic metal plate material. It is formed integrally by being processed.

  Under such circumstances, when the coaxial connector device 10 is attached to one end of the coaxial cable, first, as shown in FIG. 3, one end of the coaxial cable 40, which is an example of the coaxial cable, is connected to the coaxial connector. The device 10 is engaged with the signal contact member 11, the ground contact member 12, and the insulating housing member 13. The coaxial cable 40 includes a center conductor 41, an inner insulator 42 that covers the center conductor 41, an outer conductor 43 that surrounds the inner insulator 42, and a skin insulator 44 that covers the outer conductor 43. The conductor 41 is, for example, a stranded wire formed by twisting a large number of thin conductive wires. At one end of the coaxial cable 40, the skin insulator 44, the outer conductor 43, and the inner insulator 42 are partially cut away, and the center conductor 41 is exposed, and the inner insulator 42 and the outer conductor 42 are exposed. The conductor 43 is partially exposed.

  At this time, in the coaxial connector device 10, the stripped center conductor 41 of the coaxial cable 40 is connected to the fixing portion 16 of the center conductor connection portion 21 in the signal contact member 11 and the annular fitting portion in the ground contact member 12. The cable support 24 is mounted along the direction extending from the cable 22 and supported by the base 14 of the insulating housing member 13. Further, the exposed outer conductor 43 of the coaxial cable 40 is in contact with the cable support portion 24 extending from the annular fitting portion 22 in the ground contact member 12, whereby the coaxial cable 40 is supported by the cable support portion 24. Put in a state of being done.

  In this way, with one end of the coaxial cable 40 engaged with the signal contact member 11, the ground contact member 12, and the insulating housing member 13 of the coaxial connector device 10, as shown in FIGS. The shell portion 23 in the ground contact member 12 is bent toward the annular fitting portion 22 and the cable support portion 24 in the ground contact member 12 together with the bending contact portion 15 in the insulating housing member 13, and the cable support portion 24. And take a position substantially parallel to. Thereafter, the pair of first bending engagement pieces 25 provided in the shell portion 23 are bent so as to wrap the cable support portion 24 that supports the coaxial cable 40, and the cable support portion 24 is engaged from the outside. In addition, the pair of second bent engagement pieces 26 provided in the shell portion 23 are bent so as to wrap the exposed outer conductor 43 in the coaxial cable 40 supported by the cable support portion 24. The outer conductor 43 is engaged from the outside, and a pair of third bending engagement pieces 27 provided on the shell portion 23 are used to connect the skin insulator 44 in the coaxial cable 40 supported by the cable support portion 24. It is bent so as to be wrapped and engaged with the skin insulator 44 from the outside.

  In this case, as shown in FIG. 11 described later, the bent contact portion 15 in the insulating housing member 13 bent along with the shell portion 23 in the ground contact member 12 is connected to the central conductor connection in the signal contact member 11. The movable flat plate-shaped portion 18 that contacts the movable plate-shaped portion 18 constituting the portion 21 is pressed and displaced toward the fixed portion 16 so that the central conductor 41 of the coaxial cable 40 placed on the fixed portion 16 is fixed to the fixed portion. 16 and the movable flat plate-like portion 18. As a result, a state in which the central conductor 41 of the coaxial cable 40 is electrically connected to the central conductor connecting portion 21 in the signal contact member 11 by being mechanically held thereby is obtained. Then, it is not necessary to solder the central conductor 41 of the coaxial cable 40 to the central conductor connecting portion 21 in the signal contact member 11.

  Further, as shown in FIG. 11 described later, the inner surface of the shell portion 23 in the ground contact member 12 is exposed in the coaxial cable 40 in which the center conductor 41 is connected to the center conductor connection portion 21 in the signal contact member 11. It contacts the outer conductor 43. Thereby, a state in which the outer conductor 43 of the coaxial cable 40 is electrically connected to the ground contact member 12 is obtained.

  The pair of first bending engagement pieces 25 provided in the shell portion 23 of the ground contact member 12 are engaged with the cable support portion 24 of the ground contact member 12 from the outside, thereby supporting the cable. The support of the coaxial cable 40 by the portion 24 is performed more firmly. In addition, the pair of second bending engagement pieces 26 provided on the shell portion 23 of the ground contact member 12 engages with the outer conductor 43 of the coaxial cable 40 supported by the cable support portion 24 from the outside. By doing so, the electrical connection between the ground contact member 12 and the outer conductor 43 of the coaxial cable 40 is further ensured.

  Further, the pair of third bending engagement pieces 27 provided on the shell portion 23 of the ground contact member 12 are bent and engaged with the skin insulator 44 of the coaxial cable 40 from the outside. As shown in FIG. 11, a position facing the escape hole 30 provided in the shell portion 23 of the ground contact member 12 with the coaxial cable 40 interposed therebetween is taken, and the coaxial cable 40 is pressed toward the escape hole 30 to be coaxial. The cable 40 is made to partially escape and be pushed into the hole 30. At that time, the dimension Lh of the relief hole 30 in the S direction and the dimension Lt of each of the pair of third bending engagement pieces 27 are selected so that the dimension Lt is smaller than the dimension Lh. The third bending engagement piece 27 can easily push the portion of the coaxial cable 40 into the escape hole 30, and the pair of third bending engagement pieces 27 causes the coaxial cable 40 to partially enter the escape hole 30. The state of being pushed in is easily and reliably taken.

  In this way, the coaxial cable 40 in which the central conductor 41 is connected to the central conductor connection portion 21 in the signal contact member 11 by taking the state where the coaxial cable 40 is partially pushed into the escape hole 30 is obtained. In the ground contact member 12, a pair of first bent engagement pieces 25, a pair of second bent engagement pieces 26, a pair of third bent engagement pieces 27, and a shell portion 23 provided with a relief hole 30 are firmly provided. Will be held. As a result, the coaxial connector device 10 is configured such that the center conductor 41 is connected to the signal contact member 11 and the outer conductor 43 is connected to the ground contact member 12 even when the coaxial cable 40 is reduced in diameter. The connected coaxial cable 40 can be reliably and firmly held.

  FIG. 6 shows a counterpart connector device 50 as an example of a counterpart connector device to which the coaxial connector device 10 attached to one end of the coaxial cable 40 is fitted and connected, and a portion of the circuit board 51 to which the counterpart connector device 50 is attached. It shows. The mating connector device 50 is fixed on the component mounting surface 52 of the circuit board 51.

  The mating connector device 50 includes an insulating base 53 that is formed of an insulating material such as a synthetic resin material and is disposed on the component mounting surface 52 of the circuit board 51 to which the mating connector device 50 is fixed. The insulating base 53 has a bottom surface portion that contacts the component mounting surface 52 of the circuit board 51 to which the counterpart connector device 50 is fixed, and an upper surface portion that opposes the bottom surface portion, and an annular projecting portion 54 is formed at the center portion. ing.

  The mating connector device 50 is formed of, for example, a conductive material having elasticity, which is an alloy plate material, and the insulating base 53 is surrounded by an annular projecting portion 54 formed in the central portion thereof from the bottom surface portion side. A signal contact portion 55 that penetrates to the upper surface portion side and is assembled to the insulating base 53 is provided. The signal contact portion 55 includes a contact connection portion 55 a that forms a cylindrical portion that extends from the bottom surface portion side to the top surface portion side of the insulating base 53, and a contact connection portion 55 a that extends from the contact connection portion 55 a to the outside of the insulating base 53. And a signal connecting portion 55b extending. The contact connecting portion 55a is connected to the pair of elastic tongue pieces 19 in the signal contact member 11 of the coaxial connector device 10 fitted and connected to the mating connector device 50, and the signal connecting portion 55b is insulated. For example, it is connected to a signal terminal (not shown) provided on the circuit board 51 having the component mounting surface 52 on which the base 53 is disposed by soldering. Accordingly, the contact engaging portion formed by the elastic tongue piece portion 19 is contact-connected to the signal contact portion 55.

  Further, the mating connector device 50 is formed of, for example, an elastic conductive material that is an alloy plate, and is arranged around the annular protrusion 54 formed on the insulating base 53 on the upper surface side portion side of the insulating base 53. The ground contact part 56 assembled | attached to the insulating base 53 is provided as what comprises the cyclic | annular body. The ground contact portion 56 is provided with a plurality of ground connection portions 56 a extending through the insulating base 53 and extending to the outside of the insulating base 53 on the bottom surface portion side of the insulating base 53. The ground contact portion 56 is connected to the annular fitting portion 22 of the ground contact member 12 in the coaxial connector device 10 that is fitted and connected to the mating connector device 50, and the ground connection portion 56a is an insulating base. For example, it is connected to a ground terminal (not shown) provided on a circuit board 51 having a component mounting surface 52 on which 53 is disposed by soldering.

  And as shown in FIG. 11 which shows the XI-XI line cross section in FIGS. 7-10 and FIG. 10, the other party connector apparatus 50 fixed on the component mounting surface 52 in the circuit board 51 as mentioned above, The coaxial connector device 10 attached to one end of the coaxial cable 40 is fitted and connected.

  When the coaxial connector device 10 attached to one end of the coaxial cable 40 is fitted and connected to the mating connector device 50 fixed on the component mounting surface 52 of the circuit board 51, the ground of the coaxial connector device 10 is The annular fitting portion 22 in the contact member 12 is fitted and connected to the ground contact portion 56 of the mating connector device 50. At the same time, the base portion 14 of the insulating housing member 13 of the coaxial connector device 10 is disposed inside the annular protrusion 54 formed on the insulating base 53 surrounded by the ground contact portion 56 of the counterpart connector device 50, and the base portion 14. The contact connection portion 55a of the signal contact portion 55 of the mating connector device 50 is inserted into the through-hole portion 20 formed in the central portion of the connector, and the signal contact member in the coaxial connector device 10 extending through the through-hole portion 20 11 is contact-connected to the contact connection portion 55a of the signal contact portion 55 of the mating connector device 50.

  In this way, the annular fitting portion 22 of the ground contact member 12 of the coaxial connector device 10 is fitted and connected to the ground contact portion 56 of the counterpart connector device 50, so that the ground contact member 12 of the coaxial connector device 10 and The outer conductor 43 of the coaxial cable 40 is electrically connected to the ground terminal provided on the circuit board 51 via the annular fitting portion 22 of the ground contact member 12 and the ground contact portion 56 of the mating connector device 50. In addition, the pair of elastic tongue pieces 19 in the signal contact member 11 in the coaxial connector device 10 are contact-connected to the contact connection portion 55a in the signal contact portion 55 of the counterpart connector device 50. The coaxial The central conductor 41 of the coaxial cable 40 that is electrically connected to the central conductor connection portion 21 of the signal contact member 11 of the connector device 10 is connected to the signal of the pair of elastic tongue pieces 19 and the counterpart connector device 50 of the signal contact member 11. The contact terminal 55 is electrically connected to a signal terminal provided on the circuit board 51 via a contact connection part 55a.

  In the coaxial connector device 10 as an example of the coaxial connector device according to the present invention as described above, the shell portion 23 of the ground contact member 12 has a relief hole 30 and a pair of third bent engagements extending from the periphery of the relief hole 30. A piece 27 is provided. Then, the central conductor connecting portion 21 in the signal contact member 11 is connected to the central conductor 41 of the coaxial cable 40 and the shell portion 23 in the ground contact member 12 is in contact with the outer conductor 43 of the coaxial cable 40. Then, the pair of third bending engagement pieces 27 provided on the shell portion 23 of the ground contact member 12 are bent and engaged with the coaxial cable 40 from the outside to connect the coaxial cable 40 to the ground contact. The member 12 is pressed toward the escape hole 30 provided in the shell portion 23, and the coaxial cable 40 is partially pushed into the escape hole 30. Accordingly, the coaxial cable 40 is firmly held by the shell portion 23 of the ground contact member 12 with a part thereof being bent and being pushed into the escape hole 30 provided in the shell portion 23.

  Therefore, according to the coaxial connector device 10, the center conductor 41 is electrically connected to the signal contact member 11 and the outer conductor 43 is electrically connected to the ground contact member 12 even when the diameter of the coaxial cable 40 is reduced. The coaxial cable 40 connected to each other can be held securely and firmly. When the coaxial cable 40 is partially pushed into the escape hole 30, for example, when connected to the counterpart connector device 50 attached to the component mounting surface 52 of the circuit board 51, Since the dimension in the direction protruding from the component mounting surface 52 is not affected at all, an increase in the thickness dimension of the circuit board 51 in the direction protruding from the component mounting surface 52 can be avoided.

  The coaxial connector device according to the present invention as described above includes a signal contact member connected to the central conductor of the coaxial cable, a ground contact member connected to the outer conductor of the coaxial cable, and the contact member and the ground contact member. The center conductor is connected to the signal contact member and the outer conductor is used as the ground contact member even when the coaxial cable is reduced in diameter. The connected coaxial cable can be securely and firmly held, and the dimension in the direction protruding from the component mounting surface on the circuit board when connected to the mating connector device attached to the component mounting surface on the circuit board. As an increase in the thickness dimension that can be avoided Those that can be widely applied to various electronic equipment such.

  DESCRIPTION OF SYMBOLS 10 ... Coaxial connector apparatus, 11 ... Signal contact member, 12 ... Ground contact member, 13 ... Insulating housing member, 14 ... Base part, 15 ... Bending contact part, 16. ..Fixed part, 17 ... bent part, 18 ... movable flat plate part, 19 ... elastic tongue piece part (contact engagement part), 20 ... through hole part, 21 ... center conductor Connection part, 22 ... annular fitting part, 23 ... shell part, 24 ... cable support part, 25 ... first bending engagement piece, 26 ... second bending engagement piece 27 ... third bending engagement piece, 30 ... relief hole, 31 ... recess, 40 ... coaxial cable, 41 ... central conductor, 42 ... internal insulator, ..Outer conductor, 44 ... Skin insulation, 50 ... Mating connector device DESCRIPTION OF SYMBOLS 51 ... Circuit board, 52 ... Component mounting surface, 53 ... Insulation base | substrate, 54 ... Annular protrusion, 55 ... Signal contact part, 55a ... Contact connection part, 55b ... Signal connection, 56 ... ground contact, 56a ... ground connection

Claims (6)

A signal contact member having a center conductor connection portion that is connected to the center conductor of the coaxial cable and a contact engagement portion that extends from the center conductor connection portion and is contact-connected to an external signal contact portion;
An annular fitting portion fitted and connected to an external ground contact portion, and a ground contact member having a shell portion extending from the annular fitting portion so as to be bent and placed in contact with the outer conductor of the coaxial cable; ,
An insulating housing member that supports the signal contact member and the ground contact member in a mutually insulated state;
Configured with
The shell portion of the ground contact member is provided with a relief hole and a bent engagement piece extending from the periphery of the relief hole, and the central conductor connecting portion of the signal contact member is connected to the central conductor of the coaxial cable. The bending engagement piece is bent and engaged with the coaxial cable from the outside of the coaxial cable with the shell portion of the ground contact member in contact with the outer conductor of the coaxial cable. The coaxial connector device is characterized in that the coaxial cable is pressed toward the escape hole, and the coaxial cable is partially pushed into the escape hole.   2. The coaxial connector device according to claim 1, wherein an escape hole provided in a shell portion of the ground contact member is formed by a through hole penetrating the shell portion.   2. The relief hole provided in the shell portion of the ground contact member is formed by a recess provided on the surface of the shell portion facing the outer conductor of the coaxial cable. Coaxial connector device.   2. The coaxial connector device according to claim 1, wherein a pair of the bending engagement pieces are provided on a shell portion of the ground contact member with an escape hole provided in the shell portion interposed therebetween.   When the bending engagement piece provided in the shell portion of the ground contact member is bent, the bending engagement piece provided in the relief hole provided in the shell portion of the ground contact member has a position facing the coaxial cable with the coaxial cable interposed therebetween. The dimension of the bending engagement piece in the direction in which the coaxial cable arranged between the bending engagement piece and the relief hole extends is arranged between the relief hole and the bending engagement piece. 2. The coaxial connector device according to claim 1, wherein the coaxial cable connector is selected to be smaller than the dimension of the relief hole in the direction in which the coaxial cable extends.   The insulating housing member has a base that surrounds the contact engaging portion of the signal contact member inside the annular fitting portion of the ground contact member, and the base and the annular fitting portion of the ground contact member are the above The coaxial connector device according to claim 1, wherein a fitting connection portion for an external ground contact portion is configured.

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