JP2018116862A - Coaxial cable connector and coaxial cable connection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coaxial cable connector which can connect internal conductors of a coaxial cable with a signal contact member properly, reliably and robustly by ultrasonic junction in a state where the internal conductors are not scattered, without relying upon soldering, and to provide a coaxial cable connection method using the coaxial cable connector.SOLUTION: An insulation housing member 13 supporting a signal contact member 11 and a ground contact member 12 is provided with a first recess 25 having a first bottom formed by an internal conductor connection part 14 of the signal contact member, and a first opening for abutting the internal conductor 31 of a coaxial cable 30 on the first bottom, and permitting insertion of an ultrasonic horn 41, and a second recess 26 formed continuously to the first recess while having a second bottom where the internal conductor connection part of the signal contact member is placed and a second opening for introducing a leading end 31a of the internal conductor of the coaxial cable toward the second bottom, and ultrasonically welded to the leading end of the internal conductor of the coaxial cable.SELECTED DRAWING: Figure 13

Description

  The invention described in the claims of the present application provides insulation between the inner conductor and the outer conductor of the coaxial cable in which the inner conductor and the outer conductor that surrounds the inner conductor are insulated. The coaxial cable connector provided with the signal contact member and the ground contact member, and the inner conductor and the outer conductor of the coaxial cable are respectively connected to the signal contact member and the ground contact member that are insulated from each other provided in the coaxial cable connector. The present invention relates to a method for connecting a coaxial cable.

  For transmission of high-frequency signals between multiple electrical / electronic components, electrical devices, or electronic devices, an internal conductor and an external conductor that surrounds it with an insulator form a signal transmission path that is not easily affected by external noise. In many cases, coaxial cables are used that are covered with a skin insulator. 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 through the coaxial cable of the high-frequency signal from the outside to the circuit board. Transmission is performed.

  When the coaxial cable is connected to the circuit board, a signal contact member placed in an electrical connection state with the inner conductor of the coaxial cable and a ground contact member placed in an electrical connection state with the outer conductor of the coaxial cable. The coaxial cable connector provided is attached to one end of the coaxial cable, and the coaxial cable connector is disposed so as to surround the signal contact portion and the signal contact portion to which a high-frequency signal handled in a circuit board is supplied, for example, and ground potential. Are connected to a mating connector attached to the circuit board. For example, the coaxial cable connector is connected to the mating connector by, for example, the ground contact member of the coaxial cable connector being fitted and connected to the ground contact portion of the mating connector, and the signal contact member of the coaxial cable connector is connected to the mating connector. A state of being contact-connected to the signal contact portion is taken.

  As described above, when the coaxial cable connector is attached to one end of the coaxial cable, the inner conductor of the coaxial cable is connected to the signal contact member of the coaxial cable connector, and the outer conductor of the coaxial cable is connected to the ground contact of the coaxial cable connector. In particular, the inner conductor of the coaxial cable is usually a stranded wire formed by joining a number of fine conductors. The connection of the connector to the signal contact member directly affects the transmission characteristics of the high-frequency signal through the coaxial cable, so that the electrical connection state of the highest possible quality can be obtained. It is desirable. Under such circumstances, in the conventionally proposed coaxial cable connector, it is proposed that the connection of the inner conductor of the coaxial cable with the signal contact member of the coaxial cable connector is performed by soldering ( For example, see Patent Document 1). Also, in the past, the concept of connecting the coaxial cable connector with the signal contact member of the coaxial cable connector by using ultrasonic welding or electric welding instead of soldering has been proposed as one of the possible methods. (For example, refer to Patent Document 2).

  The coaxial cable connector (electrical connector (20)) disclosed in Patent Document 1 has an inner conductor connecting portion (connection portion (2) to which an inner conductor (core wire (12)) of a coaxial cable (cable (10)) is connected. )) And a signal contact member (contact terminal (1)) having a pair of contact engaging portions (contact portion (4)) extending therefrom, an annular fitting portion (tubular portion (23)), and bendable therefrom. Shell part (ground contact member (outer conductor (21)) having an arm part (24), contact part receiving part (26) arranged on the inner side of the annular fitting part of the ground contact member, and bent therefrom An insulating housing member (insulator (dielectric) (22)) for supporting the signal contact member and the ground contact member in a state of being insulated from each other, having a cover portion (27) that extends in a possible manner. One end of the inner conductor connection of the signal contact member The groove portion engaging the inner conductor of the coaxial cable (6) is provided, the groove has a V-shaped portion (6A) and a round-shaped portion (6B).

  And, when placing the inner conductor of the coaxial cable in the connection state with the inner conductor connecting portion of the signal contact member, first, the inner conductor of the coaxial cable is in the groove provided in the inner conductor connecting portion of the signal contact member, It is introduced from the V-shaped part and arranged so as to reach the round-shaped part. Thereafter, the groove portion is plastically deformed so as to be narrowed by a predetermined tool, and the inner conductor of the coaxial cable is sandwiched by the groove portion. Subsequently, the inner conductor of the coaxial cable is brought into close contact with the outer surface of the inner conductor connecting portion of the signal contact member, and the inner conductor of the coaxial cable is connected to the inner conductor connecting portion of the signal contact member by soldering. The

  In addition, the connection with the ground contact member about the outer conductor (shield wire (13)) of the coaxial cable in the coaxial cable connector disclosed in Patent Document 1 is performed by connecting the inner conductor of the coaxial cable to the inner conductor connecting portion of the signal contact member. After being connected by soldering, the shell portion of the signal contact member is bent toward the coaxial cable in which the inner conductor is connected to the inner conductor connecting portion with the lid portion of the ground contact member, thereby This is performed by mechanically locking to the coaxial cable in a state where it abuts against the outer conductor of the coaxial cable.

  In addition, the coaxial cable connector (coaxial connector (1)) disclosed in Patent Document 2 has an inner conductor connecting portion (connection portion (2a) to which the inner conductor (center conductor (21)) of the coaxial cable (20) is connected. )) And a signal contact member (terminal (2)) having a pair of contact engaging portions (contact portion (2b)) extending therefrom, an annular fitting portion (tubular portion (4a)), and bendable therefrom. An extending shell portion (a ground contact member (outer conductor (4)) having an outer lid portion (4b) and an insulating housing member (insulator (4)) that supports the signal contact member and the ground contact member in a mutually insulated state. In Patent Document 2, the coaxial cable connector, that is, the inner conductor connection portion of the signal contact member in the coaxial connector (1) is connected to the inner conductor of the coaxial cable. The same The inner conductor of the cable, by ultrasonic welding or electrical welding, it is described that may be welded to the inner conductor connecting portion of the signal contact member.

JP-A-8-96899 JP 2006-164791 A

  In the conventionally proposed coaxial cable connector as disclosed in Patent Document 1 described above, the inner conductor of the coaxial cable is sandwiched by the groove provided in the inner conductor connecting portion of the signal contact member. In addition, a connection mode in which the connection is made to the inner conductor connection portion of the signal contact member by soldering is employed. However, such a connection mode has the following disadvantages. That is, by connecting the inner conductor of the coaxial cable to the inner conductor connecting portion of the signal contact member by soldering, the inner conductor connecting portion of the signal contact member and the inner conductor of the coaxial cable, which is normally a stranded wire, are connected. Solder that has been solidified after being melted remains in the connection portion, and an increase in volume occupied by the connection portion between the inner conductor connection portion of the signal contact member and the inner conductor of the coaxial cable is imitated. Such an increase in volume may hinder the overall height reduction required for the coaxial cable connector. Furthermore, when connecting the inner conductor of the coaxial cable to the inner conductor connecting portion of the signal contact member by soldering, it is difficult to accurately control the amount of solder used, and the amount of solder is too small. Therefore, there is a possibility that a proper solder connection state cannot be obtained. If the proper solder connection state cannot be obtained, the characteristic impedance value of the coaxial cable connector attached to one end of the coaxial cable cannot be maintained properly, and the coaxial cable is properly and stably connected to the coaxial cable connector. I couldn't connect.

  Moreover, in connecting the internal conductor of a coaxial cable to the internal conductor connection part of the signal contact member in a coaxial cable connector in the above-mentioned Patent Document 2, the internal conductor of the coaxial cable is connected to the signal contact member by ultrasonic welding or electric welding. The statement that welding may be performed on the inner conductor connecting portion of the cable simply means that ultrasonic welding or electric welding can be one of the connection methods of the inner conductor of the coaxial cable with the signal contact member of the coaxial cable connector. This is merely a conceptual description, and Patent Document 2 does not describe any specific configuration or means required for realizing ultrasonic welding or electric welding. For example, in order to realize ultrasonic welding of the inner conductor of the coaxial cable with the inner conductor connecting portion of the signal contact member, at least an ultrasonic vibration that applies ultrasonic vibration to the inner conductor of the coaxial cable, which is usually a stranded wire, is used. A sonic horn is essential, and the ultrasonic horn usually has a size larger than the diameter of the inner conductor of the coaxial cable and the size of the portion where the inner conductor of the coaxial cable is connected in the inner conductor connecting portion of the signal contact member. However, in Patent Document 2, what type of ultrasonic horn is used, and further, how the ultrasonic horn is connected to the inner conductor connecting portion of the signal contact member and the inner conductor of the coaxial cable. There is no disclosure or suggestion about the specific methods such as Therefore, based on patent document 2, ultrasonic welding with the internal conductor connection part of the signal contact member in the coaxial cable connector about the internal conductor of a coaxial cable cannot be implement | achieved.

  In view of such a point, the invention described in the claims of the present application is in a connection state between the signal contact member having the inner conductor connecting portion to which the inner conductor of the coaxial cable is connected and the outer conductor of the coaxial cable. The signal contact member has a ground contact member to be placed, and an insulating housing member that supports the contact member and the ground contact member in a mutually insulated state. Coaxial cable that can be properly, reliably and firmly connected to the conductor connection part by ultrasonic bonding under the condition that the inner conductor of the coaxial cable is not scattered without being soldered. A signal contact member having an inner conductor connecting portion to which an inner conductor of a cable connector and a coaxial cable is connected A coaxial cable connector having a ground contact member connected to the outer conductor of the coaxial cable and an insulating housing member supporting the contact member and the ground contact member in a mutually insulated state is attached to one end of the coaxial cable. By connecting the inner conductor of the coaxial cable to the inner conductor connecting portion of the signal contact member by soldering, or by ultrasonic bonding in a state where the inner conductor is not scattered. Provided is a coaxial cable connection method capable of properly, securely and firmly connecting an inner conductor of a coaxial cable to an inner conductor connecting portion of a signal contact member.

  A coaxial cable connector according to any one of claims 1 to 6 in the claims of the present application (hereinafter referred to as a coaxial cable connector according to the present invention) is connected to an inner conductor of the coaxial cable. A signal contact member having an inner conductor connecting portion to be connected and a contact engaging portion extending from the inner conductor connecting portion and contacting and connecting to an external signal contact portion; an annular fitting portion to be fitted and connected to an external ground contact portion; Then, a ground contact member having a shell portion that extends flexibly and is in contact with the outer conductor of the coaxial cable, and an insulating housing member that supports the signal contact member and the ground contact member in a mutually insulated state. Consists of the inner conductor connecting part of the signal contact member to the insulating housing member A first recess having a first opening formed to contact the inner conductor connecting portion forming the first bottom portion, and the first conductor formed in the coaxial cable; and A second bottom portion in which the inner conductor connecting portion of the signal contact member is disposed, and a second opening for introducing the distal end portion of the inner conductor of the coaxial cable toward the second bottom portion; A second recess formed as continuous with the recess is provided, and the first recess transmits ultrasonic vibration to the inner conductor of the coaxial cable in contact with the inner conductor connecting portion that forms the first bottom. The ultrasonic horn having the inner conductor joined to the inner conductor connecting portion is allowed to be inserted into the first recess through the first opening, and the second recess is The ultrasonic wave on the inner wall part of the second recess for the ultrasonic horn Through the second opening, the second recess is welded to the tip of the inner conductor of the coaxial cable introduced toward the second bottom by transmitting the movement and melting the inner wall. It is characterized by allowing insertion into the second recess.

  In the coaxial cable connection method according to any of claims 7 to 9 in the claims of the present application (hereinafter referred to as the coaxial cable connection method according to the present invention), first, A signal contact member having an inner conductor connecting portion that is connected to the inner conductor of the coaxial cable and a contact engaging portion that extends from the inner conductor connecting contact to the outer signal contact portion, and a fitting connection to the outer ground contact portion A ground contact member having an annular fitting portion and a shell portion that extends from the annular fitting portion and is in contact with the outer conductor of the coaxial cable, and supports the signal contact member and the ground contact member in a mutually insulated state. An insulating housing member, and the inside of the signal contact member on the insulating housing member. A first recess having a first bottom formed by the body connecting portion and a first opening for bringing the inner conductor of the coaxial cable into contact with the inner conductor connecting portion forming the first bottom And a second bottom portion on which the inner conductor connecting portion of the signal contact member is disposed, and a second opening for introducing the distal end portion of the inner conductor of the coaxial cable toward the second bottom portion, A coaxial cable connector having a second recess formed to be continuous with the first recess is prepared, and then the inner conductor of the coaxial cable is connected to the first through the first opening in the first recess. The coaxial conductor is arranged in the recess and the tip of the inner conductor of the coaxial cable is brought into contact with the inner wall of the second recess through the second opening in the second recess, and the ultrasonic horn includes the tip. Against the inner conductor of the cable Then, the ultrasonic horn is transmitted to the inner conductor of the coaxial cable through the ultrasonic horn, and the first opening in the first recess and the second opening in the second recess are passed through the first opening. After being displaced toward the first bottom portion of the concave portion and the second bottom portion of the second concave portion, and melting the inner wall portion of the second concave portion through the distal end portion of the inner conductor of the coaxial cable. The ultrasonic vibration is directly transmitted from the ultrasonic horn to the inner wall portion of the second recess to further melt the inner wall portion, and the front end portion of the inner conductor of the coaxial cable is connected to the second bottom portion of the second recess. The second concave portion is welded to the distal end portion of the inner conductor of the coaxial cable while being displaced toward the outer side, and the inner conductor of the coaxial cable is displaced toward the first bottom portion of the first concave portion to thereby displace the first bottom portion. Inner conductor connection to be formed Then, the inner conductor connection portion is connected by ultrasonic bonding, and the outer conductor of the coaxial cable is brought into contact connection with the shell portion of the ground contact member.

  The coaxial cable connector according to the present invention described above is attached to one end of the coaxial cable when put into practical use. In that case, for example, the inner conductor of the coaxial cable is arranged in the first recess through the first opening in the first recess, and the tip of the inner conductor of the coaxial cable is in the second recess. The ultrasonic horn is brought into contact with the inner conductor of the coaxial cable including the distal end portion, and is brought into contact with the inner conductor of the coaxial cable through the second opening. The ultrasonic horn thus transmitted transmits ultrasonic vibrations to the inner conductor of the coaxial cable, and the first concave portion through the first opening in the first concave portion and the second opening in the second concave portion. The first bottom portion and the second bottom portion of the second recess are displaced toward the second bottom portion. Thereby, after the tip of the inner conductor of the coaxial cable to which the ultrasonic vibration is transmitted melts the inner wall portion of the second recess, the ultrasonic horn directly applies the ultrasonic vibration to the inner wall portion of the second recess. The inner wall is further melted by transmission. Accordingly, the tip of the inner conductor of the coaxial cable is displaced toward the second bottom of the second recess, and the second recess is welded to the tip of the inner conductor of the coaxial cable. Then, after the inner conductor of the coaxial cable is displaced toward the first bottom portion of the first recess and comes into contact with the inner conductor connecting portion forming the first bottom portion, ultrasonic bonding to the inner conductor connecting portion is performed. Connected by Further, the outer conductor of the coaxial cable is brought into contact connection with the shell portion of the ground contact member.

  In the example of the coaxial cable connector according to the present invention described above, the insulating housing member is formed by the internal conductor connecting portion that forms the first bottom portion in addition to the first concave portion and the second concave portion. And a third recess having a third opening that opens in a direction opposite to the direction toward the first opening from the inner conductor connecting portion that forms the third bottom. And the third recess is allowed to be inserted into the third recess through the third opening of the anvil that is in contact with the inner conductor connecting portion forming the third bottom. The

  In the coaxial cable connection method according to the present invention described above, the insulating housing member that supports the signal contact member and the ground contact member in a mutually insulated state is formed by the inner conductor connecting portion of the signal contact member. A first recess having a bottom and a first opening for abutting the inner conductor of the coaxial cable with the inner conductor connecting portion forming the first bottom, and the inner conductor connection of the signal contact member And a second opening for introducing the tip of the inner conductor of the coaxial cable toward the second bottom, and is formed to be continuous with the first recess. For the coaxial cable connector provided with the second recess, the inner conductor of the coaxial cable is passed through the first opening in the first recess. The tip of the inner conductor of the coaxial cable is brought into contact with the inner wall of the second recess through the second opening in the second recess, and the ultrasonic horn is 2 is brought into contact with the inner conductor of the coaxial cable including the tip portion in contact with the inner wall portion of the recess. In this way, the first opening in the first recess and the second opening in the second recess are transmitted to the ultrasonic horn through the ultrasonic conductor to the inner conductor of the coaxial cable. Through the first bottom portion of the first recess and the second bottom portion of the second recess. Thereby, after melting the inner wall portion of the second recess through the tip of the inner conductor of the coaxial cable to which the ultrasonic vibration is transmitted, the ultrasonic wave is directly applied from the ultrasonic horn to the inner wall portion of the second recess. The inner wall portion is further melted by transmitting vibrations, and the tip of the inner conductor of the coaxial cable is displaced toward the second bottom of the second recess, while the second recess is moved to the tip of the inner conductor of the coaxial cable. The inner conductor of the coaxial cable is displaced toward the first bottom portion of the first concave portion and brought into contact with the inner conductor connecting portion forming the first bottom portion, and then the inner conductor connecting portion is contacted with the inner conductor connecting portion. Connect by ultrasonic bonding. In addition, the outer conductor of the coaxial cable is placed in contact with the shell portion of the ground contact member.

  In the example of the coaxial cable connection method according to the present invention described above, the insulating housing member is formed by the internal conductor connection portion that forms the first bottom portion in addition to the first recess portion and the second recess portion. A third recess having a third bottom and a third opening that opens in a direction opposite to the direction toward the first opening from the inner conductor connecting portion forming the third bottom is provided. Then, the anvil is inserted into the third recess through the third opening and brought into contact with the inner conductor connecting portion forming the third bottom.

  According to the coaxial cable connector according to the present invention or the coaxial cable connection method according to the present invention, when the coaxial cable connector is attached to one end of the coaxial cable, the inner conductor of the coaxial cable has the first opening of the first recess. And the tip of the inner conductor of the coaxial cable is brought into contact with the inner wall of the second recess through the second opening of the second recess, and the ultrasonic horn is It is brought into contact with the inner conductor of the coaxial cable including the tip. Under such circumstances, the ultrasonic horn brought into contact with the inner conductor of the coaxial cable transmits the ultrasonic vibration to the inner conductor of the coaxial cable through the first, and the first opening of the first concave portion. And the second opening of the second recess is displaced toward the first bottom of the first recess and the second bottom of the second recess, whereby ultrasonic vibrations are transmitted. The tip of the inner conductor of the coaxial cable and the ultrasonic horn melt the inner wall of the second recess, and the tip of the inner conductor of the coaxial cable is displaced toward the second bottom of the second recess. The second concave portion is welded to the tip of the inner conductor of the coaxial cable, and the inner conductor of the coaxial cable is displaced toward the first bottom portion of the first concave portion, thereby the first bottom portion. By ultrasonic bonding to the inner conductor connection It is continued.

  At that time, in the insulating housing member of the coaxial cable connector, the first recess is allowed to be inserted into the first recess through the first opening of the ultrasonic horn, and the second recess is The ultrasonic horn is allowed to be inserted into the second recess through the second opening, so that even if the overall height of the coaxial cable connector is reduced, the second The tip of the inner conductor of the coaxial cable can be welded to the second concave portion by ultrasonically melting the inner wall of the recess, and the coaxial cable is connected to the inner conductor connecting portion of the signal contact member. The inner conductor of the coaxial cable can be connected by ultrasonic bonding. As a result, the connection of the inner conductor of the coaxial cable to the inner conductor connecting portion of the signal contact member is soldered. Therefore, it is possible to perform properly, surely and firmly by ultrasonic bonding in a state where the inner conductor of the coaxial cable is not scattered while avoiding the disadvantages associated with the soldering connection. Become.

  Further, according to an example of the coaxial cable connector according to the present invention or an example of the coaxial cable connection method according to the present invention, in addition to the first recess and the second recess, the insulating housing member of the coaxial cable connector includes the first The third bottom portion formed by the inner conductor connecting portion of the signal contact member forming the bottom portion of the first contact portion and the direction opposite to the direction from the inner conductor connecting portion forming the third bottom portion toward the first opening portion An anvil inserted into the third recess through the third opening with the third recess having the third opening is formed on the signal contact member forming the third bottom. It is assumed to be in contact with the inner conductor connecting portion. As a result, the inner conductor connecting portion of the signal contact member and the inner conductor of the coaxial cable in contact therewith are directly connected by the anvil inserted into the third recess and the ultrasonic horn inserted into the first recess. Then, the ultrasonic vibration is transmitted to the inner conductor of the coaxial cable through the ultrasonic horn, and the inner conductor of the coaxial cable is connected to the inner conductor connecting portion of the signal contact member by ultrasonic bonding. As a result, the connection by the ultrasonic bonding of the inner conductor of the coaxial cable to the inner conductor connecting portion of the signal contact member is further reliably and stably performed.

It is a perspective view which shows an example of the coaxial cable connector which concerns on this invention. It is a top view which shows an example of the coaxial cable connector which concerns on this invention. It is a perspective view which shows an example of the insulation housing member with which an example of the coaxial cable connector which concerns on this invention is equipped with the signal contact member supported by it. It is a perspective view which shows an example of the insulation housing member with which an example of the coaxial cable connector which concerns on this invention is equipped with the signal contact member supported by it. It is sectional drawing which shows the VV line cross section in FIG. FIG. 3 is a partial cross-sectional view showing a partially enlarged VI-VI line cross-section in FIG. 2. It is a perspective view which shows the process in which an example of the coaxial cable connector which concerns on this invention is mounted | worn with the end of a coaxial cable. It is a top view which shows the process in which an example of the coaxial cable connector which concerns on this invention is mounted | worn with the end of a coaxial cable. It is sectional drawing which shows the IX-IX line cross section in FIG. It is sectional drawing which shows the process in which an example of the coaxial cable connector which concerns on this invention is mounted | worn with the end of a coaxial cable. It is a fragmentary sectional view which expands and partially shows the XI-XI line cross section in FIG. It is sectional drawing which shows the process in which an example of the coaxial cable connector which concerns on this invention is mounted | worn with the end of a coaxial cable. It is sectional drawing which shows the process in which an example of the coaxial cable connector which concerns on this invention is mounted | worn with the end of a coaxial cable. It is sectional drawing which expands and shows the XIV-XIV line cross section in FIG. 13 partially. It is sectional drawing which shows the state with which the example of the coaxial cable connector which concerns on this invention was mounted | worn with the end of the coaxial cable. It is a perspective view which shows the state with which the example of the coaxial cable connector which concerns on this invention was mounted | worn with the end of the coaxial cable. It is a perspective view which shows the state with which the example of the coaxial cable connector which concerns on this invention was mounted | worn with the end 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 cable connector which concerns on this invention is fitted and connected with the 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 to an example of the other party connector.

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

  Hereinafter, an example of a coaxial cable connector according to the present invention and an example of a coaxial cable connection method according to the present invention implemented using the connector will be described with reference to FIGS.

  FIG. 1 (perspective view) and FIG. 2 (plan view) show a coaxial cable connector 10 that is an example of a coaxial cable connector according to the present invention. In actual use, the coaxial cable connector 10 shown in FIGS. 1 and 2 is a coaxial cable having an inner conductor and an outer conductor (an example is shown in FIG. 7 and others described later as a coaxial cable 30). ) And is connected to a counterpart connector (an example is shown in FIG. 18 described later as the counterpart connector 50) attached to the component mounting surface of the circuit board.

  The coaxial cable connector 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 an insulating material such as a thermoplastic synthetic resin material. The signal contact member 11 and the ground contact member 12 are provided with an insulating housing member 13 that supports the signal contact member 11 and the ground contact member 12 in a mutually insulated state. The signal contact member 11 is electrically connected to the inner conductor exposed at one end of the coaxial cable having an inner conductor and an outer conductor, and the ground contact member 12 is a coaxial cable having the inner conductor and the outer conductor. Is electrically connected to the external conductor exposed at one end of the wire.

  The signal contact member 11 includes an inner conductor connecting portion 14 that is connected to the inner conductor of the coaxial cable, and a contact engaging portion 15 that extends from the inner conductor connecting portion 14 and is connected to an external signal contact portion (shown in FIG. 4 described later). Have). As shown in FIG. 5 to be described later, the inner conductor connecting portion 14 is embedded in the insulating housing member 13 by, for example, insert molding, and a flat plate piece with a part of the surface facing the outside of the insulating housing member 13. It is supposed to constitute. As shown in FIGS. 4 and 5, the contact engaging portion 15 extends from the one end portion of the inner conductor connecting portion 14 so as to face each other in the insulating housing member 13, and the respective distal end portions thereof extend to the insulating housing member 13. A pair of elastic plate-like pieces that are exposed to the outside.

  The ground contact member 12 is bent from the annular fitting portion 16 and the annular fitting portion 16 that are fitted and connected to the external ground contact portion, the pair of flat plate portions 17 that extend opposite to each other from the annular fitting portion 16, and the annular fitting portion 16. It has a shell portion 18 that extends to be in contact with the outer conductor of the coaxial cable. The annular fitting portion 16 and the pair of flat plate-like portions 17 are configured to accommodate most of the insulating housing member 13, and the shell portion 18 faces the annular fitting portion 16 and the pair of flat plate-like portions 17. When bent, the annular fitting portion 16 and the pair of flat plate-like portions 17 and most of the insulating housing member 13 accommodated in the annular fitting portion 16 and the pair of flat plate-like portions 17 are covered. ing.

  The annular fitting portion 16 of the ground contact member 12 is provided with a plurality of notches 16a into which a plurality of protruding engaging portions 13a provided in the insulating housing member 13 are inserted and engaged. The plurality of projecting engagement portions 13a provided in the insulating housing member 13 are inserted into and engaged with the plurality of notches 16a provided in the annular fitting portions 16 of the ground contact member 12, respectively. 12 is supported by the insulating housing member 13. As a result, the insulating housing member 13 supports the signal contact member 11 disposed therein and the ground contact member 12 disposed mostly outside thereof in a mutually insulated state.

  A coaxial cable in which the inner conductor is connected to the inner conductor connecting portion 14 of the signal contact member 11 when the shell portion 18 of the ground contact member 12 is bent toward the annular fitting portion 16 and the pair of flat plate-like portions 17. The connection with the outer conductor of is made. The shell portion 18 is bent toward the annular fitting portion 16 and the pair of flat plate portions 17, and is bent and engaged with the pair of flat plate portions 17. The pair of first bending engagement pieces 18a, which are bent and the inner conductor engages with the outer conductor of the coaxial cable connected to the inner conductor connecting portion 14 of the signal contact member 11. And a pair of third bends that are bent and engage the inner conductor of the coaxial cable connected to the inner conductor connecting portion 14 of the signal contact member 11. An engagement piece 18c is provided. Each of the pair of first bending engagement pieces 18a, the pair of second bending engagement pieces 18b, and the pair of third bending engagement pieces 18c is bent as shown in FIG. It shifts from the facing state to the bent state in the approaching direction.

  As shown in FIG. 3 and FIG. 4 that shows an example of the insulating housing member 13 together with the signal contact member 11 supported by the insulating housing member 13, the inside of the insulating housing member 13 is signaled inside the plurality of protruding engaging portions 13 a. A cylindrical portion 20 through which the pair of contact engaging portions 15 in the contact member 11 pass, and a cable engaging portion 21 that extends from the cylindrical portion 20 and engages with the inner conductor of the coaxial cable. have. When the insulating housing member 13 supports the ground contact member 12, the tubular portion 20 is disposed inside the annular fitting portion 16 of the ground contact member 12, and the cable engaging portion. 21 is sandwiched between the pair of flat plate-like portions 17 in the ground contact member 12.

  The cable engaging portion 21 of the insulating housing member 13 includes a first bottom formed by the inner conductor connecting portion 14 of the signal contact member 11 and an inner conductor connecting portion 14 that forms the first bottom of the inner conductor of the coaxial cable. A first recess 25 having a first opening facing the first bottom for contacting the first bottom, and a second bottom on which the inner conductor connecting portion 14 of the signal contact member 11 is disposed. A second opening facing the second bottom for introducing the front end of the inner conductor of the coaxial cable toward the second bottom, and is formed to be continuous with the first recess 25. Two recesses 26, a third bottom formed by the inner conductor connecting portion 14 forming the first bottom, and a direction from the inner conductor connecting portion 14 forming the third bottom toward the first opening. Is opening in the opposite direction A third recess 27 comprising a third opening is provided that. The first recess 25 and the third recess 27 respectively have a first opening and a third opening that open in opposite directions with respect to the inner conductor connecting portion 14 of the signal contact member 11. Will be.

  Further, the cable engaging portion 21 in the insulating housing member 13 is provided with a guide portion 28 formed at a position facing the second recessed portion 27 with the first recessed portion 25 interposed therebetween. The guide portion 28 has a pair of mutually opposed inclined wall surfaces 28a, and the inner conductor of the coaxial cable contacts the inner conductor connecting portion 14 of the signal contact member 11 forming the first bottom through the first opening. When squeezed, it serves to guide the inner conductor of the coaxial cable to the first bottom by a pair of mutually opposed inclined wall surfaces 28a.

  Looking at the first recess 25 and the second recess 26 described above, the entire first recess 25 including the first opening is the entire second recess 26 including the second opening. It is formed on a larger scale.

  Under such circumstances, the first recess 25 is a pair of mutually-inclined slopes which are gradually separated from the first bottom formed by the inner conductor connecting portion 14 of the signal contact member 11 toward the first opening. It has a wall surface 25a. And the 1st recessed part 25 transmits an ultrasonic vibration to the internal conductor of the coaxial cable which contact | abutted to the internal conductor connection part 14 of the signal contact member 11 which forms the 1st bottom part, and the said internal conductor is signaled. The insertion of the ultrasonic horn to be joined to the inner conductor connecting portion 14 of the contact member 11 into the first recess 25 through the first opening is performed by the mutually opposing inclined wall surfaces 25a as necessary. It is supposed to forgive under the guidance.

  The second recess 26 is formed with a pair of mutually-inclined inclined wall surfaces 26a that gradually approach each other from the second opening toward the second bottom, and the pair of mutually-inclined inclined wall surfaces 26a and the second It has an inner wall part which forms the slit part 26b between bottoms. And the 2nd recessed part 26 transmits an ultrasonic vibration to the inner wall part of the 2nd recessed part 26 about the ultrasonic horn which transmits an ultrasonic vibration to the inner conductor of a coaxial cable, and melts the said inner wall part Allows the second recess 26 to be inserted into the second recess 26 through the second opening, which is welded to the tip of the inner conductor of the coaxial cable introduced toward the second bottom. It is supposed to be.

  Further, the third recess 27 is a third opening that opens in the direction opposite to the first opening of the first recess 25 from the inner conductor connecting portion 14 of the signal contact member 11 forming the third bottom. In the state where it is sandwiched between the inner conductor connecting portion 14 of the signal contact member 11 forming the third bottom portion and the inner conductor of the coaxial cable disposed in the first recess 25. Insertion through the third opening of the abutment anvil is allowed.

  When the signal contact member 11 and the ground contact member 12 are supported in an insulated state by the insulating housing member 13 as described above, FIG. 5 showing a cross section taken along the line V-V in FIG. As shown in FIG. 6 partially showing a cross section taken along the line VI-VI, the tubular portion 20 in the insulating housing member 13 is placed inside the annular fitting portion 16 in the ground contact member 12, Further, the cable engaging portion 21 in the insulating housing member 13 is put between the pair of flat plate-like portions 17 in the ground contact member 12. Then, the end of the annular fitting portion 16 in the ground contact member 12 and the end of the tubular portion 20 in the insulating housing member 13 surrounded by the ground contact portion 12 are ground contact portions of the mating connector to which the coaxial cable connector 10 is connected. The fitting connection part with respect to is comprised.

  In the insulating housing member 13, the inside of the signal contact member 11 embedded in the cable engaging portion 21 by, for example, insert molding with a part of the surface facing the outside of the insulating housing member 13. The conductor connecting portion 14 is sandwiched between a first recess 25 and a third recess 27 provided in the cable engaging portion 21. Further, the contact engaging portion 15 extending from the end portion of the inner conductor connecting portion 14 of the signal contact member 11 penetrates the cylindrical portion 20 in the insulating housing member 13, and its tip end is at the end portion of the cylindrical portion 20. It faces the outside of the insulating housing member 13 and constitutes a contact connection portion for the signal contact portion of the mating connector to which the coaxial cable connector 10 is coupled.

  Under such circumstances, when the above-described coaxial cable connector 10 is attached to one end of the coaxial cable, an example of the coaxial cable connection method according to the present invention is implemented to connect the coaxial cable to the cable connector 10. In such a case, first, as shown in FIG. 9 showing a cross section taken along the line IX-IX in FIG. 7, FIG. 8 and FIG. The inner conductor 31 that is a twisted wire formed by twisting the conductive wires is put into the first recess 25 through the first opening in the first recess 25 provided in the cable engaging portion 21 in the insulating housing member 13. And the inner end of the inner conductor 31 of the coaxial cable 30 is connected to the inner wall of the second recess 26 through the second opening of the second recess 26 provided in the cable engaging portion 21 of the insulating housing member 13. It abuts on the part. At this time, the inner conductor 31 of the coaxial cable 30 is brought into contact with a pair of mutually opposed inclined wall surfaces 26 a formed on the inner wall portion of the second recess 26, and the inner conductor 31 of the coaxial cable 30 is also in the first recess 25. It is assumed that a portion connected to the portion arranged in the contact portion is brought into contact with a pair of mutually opposed inclined wall surfaces 28 a included in the guide portion 28 provided in the insulating housing member 13.

  Subsequently, as shown in FIG. 11 showing a cross section taken along the line XI-XI in FIGS. 10 and 10, the anvil (anvil member) 40 is provided in the third recess provided in the cable engaging portion 21 in the insulating housing member 13. In the signal contact member 11 that is inserted into the third recess 27 through the third opening of 27 to form the first bottom of the first recess 25 and the third bottom of the third recess 27 For example, an ultrasonic horn 41 for transmitting ultrasonic vibration by ultrasonic waves having a frequency of about 110 kHz to the inner conductor 31 of the coaxial cable 30 is brought into contact with the inner conductor connecting portion 14. It is made to contact | abut to the inner conductor 31 of the coaxial cable 30 including the front-end | tip part 31a contact | abutted to a pair of mutually opposing inclined wall surface 26a formed in the inner wall part. At this time, the portion of the ultrasonic horn 41 that contacts the tip 31 a of the inner conductor 31 of the coaxial cable 30 faces a part of the pair of mutually opposed inclined wall surfaces 26 a formed on the inner wall portion of the second recess 26. It is assumed to take a position.

  Under such circumstances, the ultrasonic horn 41 is transmitted to the inner conductor 31 of the coaxial cable 30 through the ultrasonic horn 41, while the first opening in the first recess 25 and the second recess 26. Through the second opening, a state of displacement toward the first bottom in the first recess 25 and the second bottom in the second recess 26 is taken. As a result, the inner wall portion in which the pair of mutually opposed inclined wall surfaces 26a of the second recess 26 is formed via the distal end portion 31a of the inner conductor 31 of the coaxial cable 30 to which the ultrasonic vibration from the ultrasonic horn 41 is transmitted. After melting, the ultrasonic vibration is directly transmitted from the ultrasonic horn 41 to the inner wall portion of the second recess 26 to further melt the inner wall portion, and as shown in FIG. The second recessed portion 26 is welded to the distal end portion 31 a of the inner conductor 31 of the coaxial cable 30 while the distal end portion 31 a of the 31 is displaced toward the second bottom portion of the second recessed portion 26. At the same time, the inner conductor 31 of the coaxial cable 30 is displaced toward the first bottom portion of the first recess 25 as shown in FIG. 14 showing the XIV-XIV line cross section in FIGS. The inner conductor 31 of the coaxial cable 30 and the inner conductor connecting portion 14 of the signal contact member 11 are brought into contact with the inner conductor connecting portion 14 of the signal contact member 11 forming the first bottom portion, thereby forming a third recess. After the state of being sandwiched between the anvil 40 and the ultrasonic horn 41 inserted into the terminal 27, the inner conductor connecting portion 14 is connected by ultrasonic bonding.

  As a result, the signal conductor has a state in which the inner conductor 31 formed as a stranded wire of the coaxial cable 30 is not scattered by the tip 31a being solidified by the inner wall of the second recess 26 once melted. The member 11 is ultrasonically bonded to the inner conductor connecting portion 14. The ultrasonic bonding of the inner conductor 31 of the coaxial cable 30 to the inner conductor connecting portion 14 in the signal contact member 11 performed in this way is such that the inner conductor 31 of the coaxial cable 30 does not scatter its tip 31a. In addition, the inner conductor 31 of the coaxial cable 30 and the inner conductor connecting portion 14 in the signal contact member 11 include the anvil 40 inserted into the third recess 27 and the ultrasonic horn 41 inserted into the first recess 25. Therefore, it is achieved properly and reliably, and a state in which the inner conductor 31 of the coaxial cable 30 is electrically connected to the inner conductor connecting portion 14 in the signal contact member 11 is obtained. .

  Then, after connecting the inner conductor 31 of the coaxial cable 30 to the inner conductor connecting portion 14 in the signal contact member 11 by ultrasonic bonding, the ultrasonic horn 41 inserted in the first recess 25 is removed from the first recess 25. At the same time, the anvil 40 inserted into the third recess 27 is removed from the third recess 27, and the cable engagement portion 21 in the insulating housing member 13 is released from the relationship with the anvil 40 and the ultrasonic horn 41. It shall be assumed.

  Thereafter, the shell portion 18 in the ground contact member 12 is bent toward the annular fitting portion 16 and the pair of flat plate-like portions 17 in the ground contact member 12, and the annular fitting portion 16 and the pair of flat plates are formed in the shell portion 18. The shape portion 17 and most of the shape are covered with the annular fitting portion 16 and the insulating housing member 13 accommodated in the pair of flat plate-like portions 17. Under such circumstances, the pair of first bending engagement pieces 18a provided in the shell portion 18 are bent in directions close to each other and engaged with the pair of flat plate portions 17, and the shell portion The inner conductor 31 in the coaxial cable 30 in which the inner conductor 31 is connected to the inner conductor connecting portion 14 of the signal contact member 11 by bending the pair of second bending engagement pieces 18b provided in the inner contact 18 in a direction approaching each other. 32 is engaged with the outer conductor 33 surrounding the inner insulator 32, and the pair of third bending engagement pieces 18c provided on the shell portion 18 are bent in directions close to each other. The inner conductor 31 is engaged with the skin insulator 34 of the coaxial cable 30 connected to the inner conductor connecting portion 14 of the signal contact member 11. As a result, as shown in FIG. 15, the outer conductor 33 of the coaxial cable 30 can be placed in contact connection with the shell portion 18 of the ground contact member 12, and the coaxial cable 30 can be placed in the shell of the ground contact member 12. It can be held by a pair of second bending engagement pieces 18b and a pair of third bending engagement pieces 18c provided in the portion 18.

  As a result, as shown in FIGS. 15, 16, and 17, the coaxial cable connector 10 in which the signal contact member 11 and the ground contact member 12 are supported by the insulating housing member 13 in a mutually insulated state is provided with the inner conductor 31. Is connected to the inner conductor connecting portion 14 of the signal contact member 11 and the outer conductor 33 is contact-connected to the shell portion 18 of the ground contact member 12, and a pair of second conductors provided on the shell portion 18 of the ground contact member 12. It is assumed that it is attached to one end of the coaxial cable 30 held by the bending engagement piece 18b and the pair of third bending engagement pieces 18c.

  FIG. 18 shows a counterpart connector 50 that is an example of a counterpart connector to which the coaxial cable connector 10 attached to one end of the coaxial cable 30 is fitted and connected, and a circuit board 51 to which the counterpart connector 50 is attached. The mating connector 50 is fixed on the component mounting surface 52 of the circuit board 51.

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

  Further, the mating connector 50 is formed of, for example, an elastic conductive material that is an alloy plate material, and the insulating base 53 is surrounded by an annular projecting portion 54 formed in the central portion thereof, and the upper surface from the bottom surface portion side. A signal contact portion 55 that penetrates to the partial 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 an extending signal connection (not shown in the figure). The contact connection portion 55 a is a contact connection portion 15 of the signal contact member 11 of the coaxial cable connector 10 fitted and connected to the mating connector 50, and the signal connection portion includes the insulating base 53. Is connected to a signal terminal (not shown) provided on the circuit board 51 having the component mounting surface 52 on which, for example, soldering.

  Further, the mating connector 50 is formed of, for example, an elastic conductive material that is an alloy plate material, and is disposed around the annular protrusion 54 formed on the insulating base 53 in the upper surface side portion of the insulating base 53. A ground contact portion 56 assembled to the insulating base 53 is provided as an annular body. The ground contact portion 56 is provided with a plurality of ground connection portions 56 a extending from the insulating base 53 to the outside. The ground contact portion 56 is connected to the annular fitting portion 16 of the ground contact member 12 in the coaxial cable connector 10 fitted and connected to the mating connector 50. The ground connection portion 56a is connected to the insulating base 53. Is connected to a ground terminal (not shown) provided on the circuit board 51 having the component mounting surface 52 on which, for example, by soldering.

  Then, as shown in FIG. 19, the coaxial cable connector 10 attached to one end of the coaxial cable 30 is fitted into the counterpart connector 50 fixed on the component mounting surface 52 of the circuit board 51 as described above. Combined.

  When the coaxial cable connector 10 attached to one end of the coaxial cable 30 is fitted and connected to the mating connector 50 fixed on the component mounting surface 52 of the circuit board 51, the ground contact member of the coaxial cable connector 10 is used. 12 is fitted and connected to the ground contact portion 56 of the mating connector 50. At the same time, the cylindrical portion 20 of the insulating housing member 13 of the coaxial cable connector 10 is disposed inside the annular protrusion 54 of the ground contact portion 56 of the counterpart connector 50, and the counterpart connector 50 is inserted into the cylindrical portion 20. The contact connection portion 55a in the signal contact portion 55 is inserted, and the pair of contact engagement portions 15 in the signal contact member 11 of the coaxial cable connector 10 extending through the cylindrical portion 20 is contact-connected to the contact connection portion 55a. .

  In this way, the annular fitting portion 16 in the ground contact member 12 of the coaxial cable connector 10 is fitted and connected to the ground contact portion 56 of the mating connector 50, whereby the coaxial cable connector 10 and the ground contact member 12 are connected. The external conductor 33 of the coaxial cable 30 that has been electrically connected is electrically connected to the ground terminal provided on the circuit board 51 via the annular fitting portion 16 of the ground contact member 12 and the ground contact portion 56 of the mating connector 50. In addition, the pair of contact engagement portions 15 in the signal contact member 11 in the coaxial cable connector 10 are contact-connected to the contact connection portion 55a in the signal contact portion 55 of the counterpart connector 50, Coaxial cable The inner conductor 31 of the coaxial cable 30 that is electrically connected to the inner conductor connecting portion 14 in the signal contact member 11 of the bull connector 10 is connected to the pair of contact engaging portions 15 in the signal contact member 11 and the signal contact of the mating connector 50. It is electrically connected to the signal terminal provided on the circuit board 51 through the contact connection part 55a in the part 55.

  According to one example of the coaxial cable connector 10 according to the present invention as described above or the coaxial cable connection method according to the present invention, the coaxial cable connector 10 is attached to one end of the coaxial cable 30. The inner conductor 31 of the coaxial cable 30 is arranged in the first recess 25 through the first opening of the first recess 25 provided in the cable engaging portion 21 in the insulating housing member 13 and the coaxial cable 30. The tip 31a of the inner conductor 31 is brought into contact with the inner wall of the second recess 26 through the second opening of the second recess 26 provided in the cable engaging portion 21 of the insulating housing member 13, The sonic horn 41 is brought into contact with the inner conductor 31 of the coaxial cable 30 including the tip 31a. Under such circumstances, the ultrasonic horn 41 brought into contact with the inner conductor 31 of the coaxial cable 30 transmits ultrasonic vibrations to the inner conductor 31 of the coaxial cable 30 through the first horn 25. The first opening and the second opening of the second recess 26 are displaced toward the first bottom of the first recess 25 and the second bottom of the second recess 26. Thus, the tip 31a of the inner conductor 31 of the coaxial cable 30 and the ultrasonic horn 41 to which the ultrasonic vibration has been transmitted melt the inner wall of the second recess 26, and the tip of the inner conductor 31 of the coaxial cable 30. 31 a is displaced toward the second bottom of the second recess 26, the second recess 26 is welded to the tip 31 a of the inner conductor 31 of the coaxial cable 30, and the inside of the coaxial cable 30 Body 31 is connected by ultrasonic bonding to the inner conductor connecting portion 14 of the signal contact member 11 in which the first bottom is caused to displace toward the in the first recess 25 to form the first bottom.

  At that time, in the insulating housing member 13 of the coaxial cable connector 10, the first recess 25 is allowed to be inserted into the first recess 25 through the first opening of the ultrasonic horn 41, and Since the second concave portion 26 allows insertion of the ultrasonic horn into the second concave portion 26 through the second opening, the overall height of the coaxial cable connector 10 is reduced. Even in this case, by ultrasonically melting the inner wall portion of the second concave portion 26, the end portion 31a of the inner conductor 31 of the coaxial cable 30 can be welded to the second concave portion 26. In addition, the inner conductor 31 of the coaxial cable 30 can be connected to the inner conductor connecting portion 14 of the signal contact member 11 by ultrasonic bonding. The connection of the inner conductor 31 of the coaxial cable 30 to the inner conductor connecting portion 14 of the cable member 11 is not performed by soldering, and therefore the inconvenience associated with the soldering connection can be avoided. With the state in which the conductor 31 is not scattered, the ultrasonic bonding can be performed appropriately, reliably and firmly.

  Further, according to the example of the coaxial cable connector according to the present invention or the example of the coaxial cable connection method according to the present invention, the insulating housing member 13 of the coaxial cable connector 10 is added to the first recess 25 and the second recess 26. The third bottom formed by the inner conductor connecting portion 14 of the signal contact member 11 forming the first bottom and the direction from the inner conductor connecting portion 14 forming the third bottom toward the first opening An anvil 40 inserted into the third recess 27 through the third opening is provided with a third recess 27 having a third opening that opens in the opposite direction to the first opening. 3 is in contact with the inner conductor connecting portion 14 of the signal contact member 11 that forms the bottom of the three. As a result, the inner conductor connecting portion 14 of the signal contact member 11 and the inner conductor 31 of the coaxial cable 30 in contact therewith are inserted into the anvil 40 inserted into the third recess 27 and the first recess 25. Ultrasonic vibration is transmitted to the inner conductor 31 of the coaxial cable 30 through the ultrasonic horn 41 while being directly sandwiched between the ultrasonic horn 41 and the inner conductor 31 of the coaxial cable 30 is connected to the inside of the signal contact member 11. The conductor connection portion 14 is connected by ultrasonic bonding. As a result, the connection by the ultrasonic bonding of the inner conductor 31 of the coaxial cable 30 to the inner conductor connecting portion 14 of the signal contact member 11 is further reliably and stably performed.

  The coaxial cable connector and the coaxial cable connection method according to the present invention as described above are used or implemented, so that even if the overall height of the coaxial cable connector is reduced, the signal contact member The connection of the inner conductor of the coaxial cable to the inner conductor connecting portion can be performed properly, reliably and firmly by ultrasonic bonding in a state where the inner conductor is not scattered without being soldered. As a thing, it can be widely applied to various electronic devices.

  DESCRIPTION OF SYMBOLS 10 ... Coaxial cable connector, 11 ... Signal contact member, 12 ... Ground contact member, 13 ... Insulating housing member, 14 ... Internal conductor connection part, 15 ... Contact engagement part, 16 ... annular fitting part, 17 ... flat plate part, 18 ... shell part, 18a ... first bending engagement piece, 18b ... second bending engagement piece, 18c .. third bending engagement piece, 20... Cylindrical portion, 21... Cable engagement portion, 25... First recess, 25 a, 26 a, 28 a. ... 2nd recessed part, 26b ... Slit part, 27 ... 3rd recessed part, 28 ... Guide part, 30 ... Coaxial cable, 31 ... Internal conductor, 31a ... ( Tip of internal conductor 31, 32... Internal insulator, 3 ... outer conductor, 34 ... skin insulator, 40 ... anvil (anvil member), 41 ... ultrasonic horn, 50 ... mating connector, 51 ... circuit board, 52 ... -Component mounting surface, 53 ... Insulating substrate, 54 ... Annular protrusion, 55 ... Signal contact part, 55a ... Contact connection part, 56 ... Ground contact part, 56a ... Ground connection Part

Claims (9)

A signal contact member having an inner conductor connecting portion that is connected to the inner conductor of the coaxial cable and a contact engaging portion that extends from the inner conductor connecting portion and is contact-connected to an external signal contact portion;
An annular fitting part fitted and connected to an external ground contact part, and a ground contact member having a shell part extending from the annular fitting part 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
A first bottom portion formed by the inner conductor connecting portion of the signal contact member and an inner conductor connecting portion of the coaxial cable for contacting the insulating housing member with the inner conductor connecting portion forming the first bottom portion; A first recess having a first opening, a second bottom portion on which the inner conductor connecting portion of the signal contact member is disposed, and a tip portion of the inner conductor of the coaxial cable. A second opening for introducing toward the bottom, and a second recess formed to be continuous with the first recess is provided,
The first concave portion transmits ultrasonic vibration to the inner conductor of the coaxial cable that is in contact with the inner conductor connecting portion forming the first bottom portion, and the inner conductor is joined to the inner conductor connecting portion. And allowing the ultrasonic horn to be inserted into the first recess through the first opening, and the second recess is the second recess for the ultrasonic horn. The second concave portion is welded to the tip end portion of the inner conductor of the coaxial cable introduced toward the second bottom by transmitting ultrasonic vibration to the inner wall portion and melting the inner wall portion. A coaxial cable connector that allows insertion into the second recess through the second opening.   In addition to the first recess and the second recess, the insulating housing member forms a third bottom and a third bottom formed by the inner conductor connecting portion that forms the first bottom. A third recess having a third opening that opens in a direction opposite to the direction from the inner conductor connecting portion toward the first opening is provided. The concave portion allows insertion of the anvil, which is in contact with the inner conductor connecting portion forming the third bottom portion, into the third concave portion through the third opening. The coaxial cable connector according to 1.   The insulating housing member is formed at a position facing the second recess with the first recess interposed therebetween, and the inner conductor of the coaxial cable forms the first bottom through the first opening. 2. The coaxial cable connector according to claim 1, further comprising a guide portion for guiding the inner conductor of the coaxial cable to the first bottom portion when the inner conductor connection portion is brought into contact with the inner conductor connecting portion.   2. The entire first recess including the first opening is formed on a larger scale than the entire second recess including the second opening. Coaxial cable connector.   Before the melting of the inner wall portion of the second recess, the second recess is a pair of mutually opposed inclined surfaces that gradually approach each other toward the inner wall portion from the second opening toward the second bottom portion. The coaxial cable connector according to claim 1, wherein the coaxial cable connector is formed.   The second recess has a slit formed between the pair of mutually opposed inclined surfaces and the second bottom before the inner wall of the second recess is melted. 6. The coaxial cable connector according to claim 5, wherein: A signal contact member having an inner conductor connecting portion that is connected to the inner conductor of the coaxial cable, a contact engaging portion that extends from the inner conductor connecting portion and is connected to the outer signal contact portion, and an outer ground contact An annular fitting part fitted and connected to the part, a ground contact member having a shell part extending from the annular fitting part so as to be bent and placed in contact with the outer conductor of the coaxial cable, and the signal contact member And an insulating housing member that supports the ground contact member in a mutually insulated state. The insulating housing member includes a first bottom portion formed by an inner conductor connecting portion of the signal contact member and an inner conductor of the coaxial cable. A first opening for contacting the inner conductor connecting portion forming the first bottom And a second bottom portion where the inner conductor connecting portion of the signal contact member is disposed and a tip portion of the inner conductor of the coaxial cable are introduced toward the second bottom portion. A coaxial cable connector having a second opening for providing a second recess formed to be continuous with the first recess,
The inner conductor of the coaxial cable is disposed in the first recess through the first opening in the first recess, and the front end of the inner conductor of the coaxial cable is passed through the second opening in the second recess. Abutting against the inner wall of the second recess,
With the ultrasonic horn in contact with the inner conductor of the coaxial cable including the tip,
Through the ultrasonic horn, ultrasonic vibration is transmitted to the inner conductor of the coaxial cable through the ultrasonic horn, and through the first opening in the first recess and the second opening in the second recess. Taking a state of being displaced toward the first bottom in the first recess and the second bottom in the second recess,
After melting the inner wall portion of the second recess through the tip portion of the inner conductor of the coaxial cable, ultrasonic vibration is transmitted directly from the ultrasonic horn to the inner wall portion of the second recess. The inner wall is further melted, and the tip of the inner conductor of the coaxial cable is displaced toward the second bottom of the second recess, while the second recess is moved to the tip of the inner conductor of the coaxial cable. After the welding, the inner conductor of the coaxial cable is displaced toward the first bottom portion of the first concave portion and brought into contact with the inner conductor connecting portion forming the first bottom portion, and then the inner conductor connection Connected by ultrasonic bonding,
Furthermore, the coaxial cable connecting method, wherein the outer conductor of the coaxial cable is placed in contact connection with the shell portion of the ground contact member.   In addition to the first recess and the second recess, the insulating housing member forms a third bottom and a third bottom formed by the inner conductor connecting portion that forms the first bottom. The anvil is provided with a third recess having a third opening that opens in a direction opposite to the direction from the inner conductor connecting portion toward the first opening. 8. The coaxial cable connecting method according to claim 7, wherein the coaxial cable connecting method is inserted into the third concave portion through the third opening and brought into contact with the inner conductor connecting portion forming the third bottom portion.   The inner conductor is formed at a position facing the second concave portion across the first concave portion, and the inner conductor of the coaxial cable forms the first bottom portion of the first concave portion. When the guide portion for guiding the inner conductor of the coaxial cable to the first bottom portion is provided when being brought into contact with the connection portion, the ultrasonic horn is connected to the coaxial cable through the ultrasonic horn. When the ultrasonic conductor is transmitted to the inner conductor of the first concave portion and is displaced toward the first bottom portion of the first concave portion and the second bottom portion of the second concave portion, the inner conductor of the coaxial cable is moved to the guide portion. The coaxial cable connection method according to claim 8, wherein the guide is received by being guided by the guide portion.

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