JP6724602B2 - Coaxial connector device - Google Patents

Description

The invention described in the claims of the present application is connected to a center conductor and an outer conductor of a coaxial cable in which a center conductor and an outer conductor surrounding the center conductor via an inner insulator are covered 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 that is fitted and connected to a mating connector device that is another connector device.

For transmission of high-frequency signals between a plurality of electric/electronic components, electric 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 side that surrounds the central conductor with an internal insulator. A coaxial cable in which a conductor and a conductor are covered with a skin insulator is often used. For example, a coaxial cable is connected to a circuit board that handles high-frequency signals, and a high-frequency signal is transmitted from the circuit board to the outside through the coaxial cable, or a high-frequency signal is externally transmitted to the circuit board through a coaxial cable. Transmission takes place.

When the coaxial cable is connected to the circuit board, a coaxial connector device attached to one end of the coaxial cable surrounds, for example, a center signal contact portion to which a high-frequency signal handled in the circuit board is supplied and a center signal contact portion. And a ring-shaped ground contact portion provided with a ground potential and engaged and connected to a mating connector device mounted on the circuit board. In such a case, the coaxial connector device includes a signal contact member that connects the center conductor of the coaxial cable to the center signal contact portion of the counterpart connector device, and a ground contact that connects the outer conductor of the coaxial cable to the annular ground contact portion of the counterpart connector device. The member and the member are supported by the housing in a mutually insulated state. Then, the engagement connection of the coaxial connector device with the mating connector device is performed, for example, under the condition that the ground contact member of the coaxial connector device is fitted and connected to the annular ground contact portion of the mating connector device. The member is brought into contact with and connected to the central signal contact portion of the mating connector device.

Thus, under the condition that the coaxial connector device attached to one end of the coaxial cable is engaged and connected to the counterpart connector device attached to the circuit board, for example, a high frequency signal handled in the integrated circuit chip mounted on the circuit board is , A state in which the integrated circuit chip is transmitted to the outside of the circuit board on which it is mounted via a coaxial cable, or a high-frequency signal transmitted via a coaxial cable is supplied to the integrated circuit chip mounted on the circuit board Is taken. At this time, for the coaxial connector device, in order to inspect the working state of the integrated circuit chip mounted on the circuit board, the mating connector device is engaged and connected to the mating connector device in the mating connector device. It is required that the high frequency signal from the integrated circuit chip can be taken out or the high frequency signal can be supplied to the integrated circuit chip through the central signal contact portion of the device.

Conventionally, various things are known as a coaxial connector device, as one of them, a signal conductor that is connected to the center conductor of the coaxial cable and is contact-connected to the center signal contact portion of the counterpart connector device, A grounding conductor connected to the outer conductor of the coaxial cable and contactingly connected to the annular ground contact portion of the mating connector device, and a housing for supporting the signal conductor and the ground conductor in a mutually insulated state. In the engaged state, the outer conductor member inserted through the through hole penetrating each of the housing and the ground conductor having the portion covering the housing is brought into contact with the center signal contact portion of the counterpart connector device. As a result, it has been proposed that a high frequency signal can be taken out from the center signal contact portion of the counterpart connector device through the outer conductor member (for example, refer to Patent Document 1).

A coaxial connector device (cable-side connector (20)) disclosed in Patent Document 1 is connected to a center conductor (93) of a coaxial cable (90) and mounted on a substrate (3) as a counterpart connector device (substrate). Side connector (70)), the signal conductor (terminal (21)) that is connected to the center signal contact part (center terminal (71)) and the outer conductor (91) of the coaxial cable are connected to the board (3). The ground conductor (outer shell (40)), which is connected to the annular ground contact part (outer conductor (76)) of the mating connector device mounted on, is supported by the housing (30) in a mutually insulated state. ing. The signal conductor is provided on the base portion (22) thereof such that a gripping portion (22A) for grasping the center conductor of the coaxial cable and a pair of arm portions (23) facing each other extend in opposite directions with the base portion interposed therebetween. At the free ends of the pair of arms (23), a pair of contact pieces (24-1, 24-2) that are plate-shaped and face each other are elastically movable. They are respectively provided to form a part. The ground conductor has a tip cover (41) that partially covers the housing, and a portion of the tip cover corresponding to the signal conductor supported by the housing has a through hole (insertion hole (41A)). ) And a cylindrical portion (41B) surrounding it.

In the case where such a conventionally proposed coaxial connector device is engaged and connected to the counterpart connector device, the tubular portion (46) of the ground conductor is fitted to the annular ground contact portion of the counterpart connector device, and The pair of contact pieces of the signal conductor are contact-connected to the annular ground contact portion, and are contact-connected to the center signal contact portion while elastically sandwiching the center signal contact portion of the mating connector device. Thereby, for example, a high frequency signal from the board (3) on which the mating connector device is mounted is connected to the signal conductor of the coaxial connector device through the center signal contact portion of the mating connector device and the signal conductor of the coaxial connector device. It is transmitted to the outside of the board through the center conductor of the coaxial cable.

Under such circumstances, for example, it is necessary to take out the high frequency signal from the center signal contact portion of the counterpart connector device at the time of inspection of the operating state of the integrated circuit chip mounted on the substrate and handling the high frequency signal. In this case, the center terminal (13') where the annular insulating member (insulating part (18)) is arranged near the tip of the inspection probe (11') is used as the outer conductor member in the ground conductor in the coaxial connector device. Inserted through the through hole provided in the tip cover portion, the annular insulating member arranged near the tip of the center terminal abuts the pair of contact pieces in the signal conductor to elastically displace them in a direction separating them from each other, The tip portion of the center terminal is brought into contact with the center signal contact portion of the counterpart connector device. At this time, the pair of contact pieces in the signal conductor, which are elastically displaced in the direction in which the annular insulating member disposed near the tip of the center terminal abuts and separates from each other, releases the elastic clamp to the center signal contact portion of the counterpart connector device. Then, it is separated from the central signal contact portion. As a result, only the tip portion of the center terminal of the inspection probe comes into contact with the center signal contact portion of the mating connector device, and as a result, the coaxial connector device is engaged and connected to the mating connector device. Under the circumstances, the high frequency signal can be taken out from the center signal contact portion of the counterpart connector device through the center terminal of the inspection probe which is the outer conductor member. After that, when the inspection is completed and the center terminal of the inspection probe inserted through the through hole provided in the tip cover portion of the ground conductor in the coaxial connector device is removed, the pair of contact pieces of the signal conductor are opposed to each other. The central signal contact portion of the connector device is elastically sandwiched and automatically returned to the state of being contacted and connected to the central signal contact portion.

JP, 2016-38939, A

In the conventionally proposed coaxial connector device disclosed in the above-mentioned Patent Document 1, for example, the coaxial connector device is mounted on the substrate when the operating state of the integrated circuit chip that handles high frequency signals is inspected. The mating connector is inserted through the through hole provided in the tip cover of the ground conductor into the coaxial connector device while being engaged and connected to the mating connector device mounted on the mating connector device. High-frequency signals can be taken out from the central signal contact part of the device, but when such inspection is not performed, it is assumed that the through hole provided in the tip cover part of the ground conductor is opened, and the signal conductor in the housing is opened. The portion in which the pair of contact pieces is arranged is exposed to the outside of the ground conductor partially covering the housing through the open through hole, which causes inconvenience. That is, when the portion of the housing where the signal conductor is arranged is exposed to the outside of the ground conductor through the open through hole, dust or the like that has entered the coaxial connector device through the open through hole can prevent dust from entering the coaxial cable. The pair of contact pieces of the signal conductor connected to the center conductor of the signal conductor and the center signal contact portion of the counterpart connector device to which they are elastically sandwiched and contact-connected with each other are attached to the center conductor of the signal conductor. A situation in which the proper contact connection state between the pair of contact pieces and the central signal contact portion of the counterpart connector device between which they are elastically sandwiched is impaired, or the pair of contact pieces of the signal conductor and the counterpart connector device between which they are elastically sandwiched Therefore, there is a concern that the impedance of the high-frequency signal between the center signal contact portion of the device may deteriorate.

Further, in Patent Document 1, a lid (49) for closing a through hole provided in a tip cover portion of a ground conductor is prepared and the lid is attached to a coaxial connector device, whereby a pair of signal conductors of a housing are brought into contact with each other. It has been proposed to avoid the situation where the portion where the piece is arranged is exposed to the outside of the ground conductor through an open through hole, but in such a case, it is separate from the coaxial connector device. Therefore, there is a new inconvenience that the number of members must be increased and the work is troublesome when the lid is attached to and detached from the coaxial connector device.

In view of such a point, the invention described in the claims of the present application provides a signal contact member that is in a state of connecting a central conductor of a coaxial cable to a signal contact portion of a mating connector device, and an outer conductor of the coaxial cable. A ground contact member that has a shell portion to be connected and that connects the outer conductor of the coaxial cable to the ground contact portion of the mating connector device; and an insulating housing member that supports the signal contact member and the ground contact member in a mutually insulated state. A signal of the other connector device through an external electrode member inserted through a through hole penetrating each of the shell portion of the insulating housing member and the ground contact member under a state of being engaged and connected to the other connector device. High-frequency signals can be taken out from the contact part, and with the configuration that does not cause an increase in the number of members and inconvenience in work, dust and the like that has entered through the open through-holes is the signal contact between the signal contact member and the mating connector device. (EN) Provided is a coaxial connector device capable of avoiding a situation that adversely affects a contact connection state with a section.

A coaxial connector device according to the invention described in any one of claims 1 to 5 in the claims of the present application (hereinafter, referred to as a coaxial connector device according to the present invention) has a center conductor of a coaxial cable as an external component. A signal contact member that is in a state of being connected to the signal contact portion, an annular fitting portion that is fitted and connected to the external ground contact portion, and an outer conductor of the coaxial cable that is foldably extendable from the annular fitting portion. And a ground contact member having a shell portion in a contact state, and an insulating housing member that supports the signal contact member and the ground contact member in a mutually insulated state. The insulating housing member has a tubular body portion surrounded by the annular fitting portion of the ground contact member, and is attached to the first housing to which the signal contact member is attached and the shell portion of the ground contact member. A second housing that is in a state of opposing to the first housing by forming a contact accommodation space between the first housing and the second housing, the second housing and the second housing being provided so as to penetrate the second housing and the shell portion. , A through hole is formed for allowing the contact housing space to communicate with the outside of the shell portion while the second housing faces the first housing, and the signal contact member is connected to the center conductor of the coaxial cable to form a contact. The first contact extending into the accommodating space, the elastically deformable portion disposed in the contact accommodating space, and the elastically deformable portion extending from the elastic deforming portion into the tubular body portion of the first housing are in contact with the external signal contact portion. A second contact having a contact engaging portion, wherein the elastically deformable portion of the second contact is positioned to cover the contact connecting portion of the contact engaging portion extending from the second contact with the external signal contact portion, The second housing is arranged at a position corresponding to one end of the through hole in the contact accommodating space under the condition where the second housing faces the first housing, and the contact is connected to the first contact in the contact accommodating space. A state in which the contact portion is in contact with the first contact and the external electrode has a portion and an abutted portion with which the external electrode member inserted into the contact accommodating space from the outside of the shell portion through the through hole abuts; The contacted portion with which the member abuts is elastically deformed to selectively separate the contacted portion from the first contact.

In such a coaxial connector device according to the present invention, the signal contact member attached to the first housing constituting the insulating housing member has a contact portion in the elastically deformable portion of the second contact in the coaxial contact cable. The shell portion of the ground contact member, to which the second housing of the insulating housing member is attached, is annularly fitted to the ground contact member while being in contact with the first contact connected to the center conductor of the ground contact member. The first housing is opposed to the second housing so that a contact accommodating space is formed between the first housing and the second housing, and is in contact with the outer conductor of the coaxial cable. It Then, the coaxial connector device according to the present invention mounted on one end of the coaxial cable in this way is engaged and connected to the counterpart connector device mounted on the circuit board, for example.

In such a case, the elastically deformable portion of the second contact in the signal contact member arranged in the contact accommodating space is provided at one end of the through hole provided through the second housing and the shell portion, respectively. The contact engagement portion extending from the elastically deformable portion is brought into contact with the signal contact portion of the mating connector device, which is the external signal contact portion, and the annular fitting portion of the ground contact member. Is fitted and connected to the ground contact portion of the counterpart connector device, which is the external ground contact portion. Thereby, the center conductor of the coaxial cable is connected to the signal contact portion of the mating connector device through the elastically deformable portion and the contact engagement portion of the first contact of the signal contact member and the second contact of the signal contact member, For example, a high frequency signal from the circuit board to which the mating connector device is attached is transmitted to the center conductor of the coaxial cable and transmitted through the coaxial cable.

Under such a condition, the second contact elastically deforms in the signal contact member at a position corresponding to one end of a through hole provided through the second housing and the shell portion in the contact accommodating space. The portion covers the contact connection portion of the contact engagement portion extending therefrom with the external signal contact portion, and is contact-connected to the signal contact portion of the counterpart connector device which is the external signal contact portion of the contact engagement portion extending from the elastic deformation portion. The part to be exposed is not exposed to the outside of the shell part through the through hole provided in the second housing and the shell part.

Then, for example, the external electrode member, which is an electrode member of the inspection probe, is housed in the contact through the through hole provided through the shell portion of the ground contact member to the second housing and the shell portion, respectively. When the elastically deformable portion is inserted into the space and presses and abuts against the abutted portion of the elastically deformable portion of the second contact of the signal contact member that is positioned at a position corresponding to one end of the through hole, the elastically deformable portion is elastic. Deformation occurs and the contact portion thereof is separated from the first contact of the signal contact member to release the contact connection state with the first contact. As a result, the elastically deformable portion of the second contact of the signal contact member has the contact engagement portion extending therefrom contacted and connected to the signal contact portion of the mating connector device, which is the external signal contact portion, and then the electrode of the inspection probe. Placed in a contact connection state only with the external electrode member as a member, through the contact engagement portion and the elastic deformation portion of the second contact in the signal contact member and the external electrode member serving as the electrode member of the inspection probe, The high frequency signal can be taken out from the signal contact portion of the counterpart connector device which is the external signal contact portion.

Thereafter, the external electrode member serving as the electrode member of the inspection probe inserted into the contact accommodating space through the through holes provided in the second housing and the shell portion penetrating the shell and the shell of the ground contact member. When the through hole is opened by being pulled out to the outside of the portion, the elastically deformed portion of the second contact returns from the elastically deformed state to the original state due to its own elasticity, and the contact portion thereat. To establish a contact connection state with the first contact.

In the above-described coaxial connector device according to the present invention, in the contact receiving space through the through holes penetrating the second housing and the shell portion of the ground contact member while being engaged and connected to the mating connector device. A high-frequency signal can be taken out from the signal contact portion of the mating connector device through the external electrode member inserted in. Then, the elastically deformable portion of the second contact in the signal contact member, which is located at a position corresponding to one end of the through hole provided through the second housing and the shell portion in the contact accommodating space, respectively, extends therefrom. A portion that covers the contact connection portion with the external signal contact portion in the contact engagement portion and is contact-connected to the signal contact portion of the counterpart connector device that is the external signal contact portion in the contact engagement portion extending from the elastically deformable portion, The second housing and the shell portion are not exposed to the outside of the shell portion through the through holes provided in the shell portion, so that dust or the like that has entered the contact accommodation space through the open through hole does not come into contact with the second portion of the signal contact member. The contact engagement portion extending from the elastically deformed portion of the contact is prevented from adhering to the signal contact portion of the counterpart connector device, which is the external signal contact portion to which the contact engagement portion is connected. As a result, the contact engagement portion that extends from the elastically deformed portion of the second contact of the signal contact member and the dust that adheres to the signal contact portion of the mating connector device that is an external signal contact portion to which the contact engagement portion is connected are contacted by the contact engagement portion. A situation in which the proper contact connection state between the mating portion and the signal contact portion of the mating connector device is impaired, or impedance between the contact engagement portion and the signal contact portion of the mating connector device deteriorates for high-frequency signals occurs. It is possible to avoid the possibility of a situation.

Therefore, according to the coaxial connector device of the present invention, the contact housing space is provided through the through holes penetrating the second housing and the shell portion of the ground contact member while being engaged and connected to the mating connector device. High frequency signals can be taken out from the signal contact part of the mating connector device through the external electrode member inserted inside, and through the open through hole with a structure that does not cause an increase in the number of members and the trouble of work. It is possible to avoid a situation in which the dust or the like that has entered adversely affects the contact connection state between the signal contact member and the signal contact portion of the counterpart connector device.

It is a perspective view showing the 1st example of the coaxial connector device concerning the present invention in the state where it was attached to one end of a coaxial cable. It is a side view which shows the 1st example of the coaxial connector apparatus which concerns on this invention in the state with which it was attached to the end of a coaxial cable. It is a front view showing the 1st example of the coaxial connector device concerning the invention in this application in the state where it was attached to one end of a coaxial cable. It is a bottom view showing the 1st example of the coaxial connector device concerning the invention in this application in the state where it was attached to one end of a coaxial cable. It is sectional drawing which shows the VV cross section in FIG. It is sectional drawing which shows the VI-VI sectional view in FIG. It is a perspective view which shows the 1st contact of the 1st and 2nd contact which comprises the signal contact part with which the 1st example of the coaxial connector apparatus which concerns on this invention is equipped. It is a perspective view showing the 2nd contact of the 1st and 2nd contact which constitutes the signal contact member with which the 1st example of the coaxial connector device concerning the present invention is provided. It is a perspective view showing the 2nd contact of the 1st and 2nd contact which constitutes the signal contact member with which the 1st example of the coaxial connector device concerning the present invention is provided. It is a perspective view which shows the ground contact member with which the 1st example of the coaxial connector apparatus which concerns on this invention is equipped. It is a perspective view which shows the 1st housing of the 1st and 2nd housing which comprises the insulating housing member with which the 1st example of the coaxial connector apparatus which concerns on this invention is equipped. It is a perspective view showing the 2nd housing of the 1st and 2nd housing which constitutes the insulating housing member with which the 1st example of the coaxial connector device concerning the present invention is provided. It is a perspective view showing an example of the other party connector device with which the 1st example of the coaxial connector device concerning the invention in this application is engaged and connected. It is a side view which shows an example of the other party connector device with which the 1st example of the coaxial connector device which concerns on this invention is engaged and connected. It is a bottom view which shows an example of the other party connector device with which the 1st example of the coaxial connector device which concerns on this invention is engaged and connected. It is a fragmentary sectional view showing the state where the electrode member of an example of the probe for inspection was opposed to the 1st example of the coaxial connector device concerning the invention in this application. It is a fragmentary sectional view showing the state where the electrode member of an example of the probe for inspection was opposed to the 1st example of the coaxial connector device concerning the invention in this application. FIG. 3 is a partial cross-sectional view showing a state in which an electrode member of an example of a probe for inspection is inserted into a first example of the coaxial connector device according to the present invention through a through hole provided therein. FIG. 3 is a partial cross-sectional view showing a state in which an electrode member of an example of a probe for inspection is inserted into a first example of the coaxial connector device according to the present invention through a through hole provided therein. It is a perspective view showing the 2nd example of the coaxial connector device concerning the present invention in the state where it was attached to one end of a coaxial cable. It is a side view which shows the 2nd example of the coaxial connector device which concerns on this invention in the state with which it was attached to the end of a coaxial cable. It is a front view showing the 2nd example of the coaxial connector device concerning the invention in this application in the state where it was attached to one end of a coaxial cable. It is sectional drawing which shows the XXIII-XXIII line cross section in FIG. It is sectional drawing which shows the XXIV-XXIV line cross section in FIG. It is a perspective view which shows the ground contact member with which the 2nd example of the coaxial connector apparatus which concerns on this invention is equipped. It is a perspective view which shows the 2nd housing of the 1st and 2nd housing which comprises the housing member with which the 2nd example of the coaxial connector apparatus which concerns on this invention is equipped. It is a fragmentary sectional view showing the state where the electrode member of an example of the probe for inspection was counter-disposed in the 2nd example of the coaxial connector device concerning the present invention. It is a fragmentary sectional view showing the state where the electrode member of an example of the probe for inspection was counter-disposed in the 2nd example of the coaxial connector device concerning the present invention. It is a fragmentary sectional view showing the state where the electrode member of an example of the probe for inspection was inserted into the 2nd example of the coaxial connector device concerning the present invention through the through-hole provided in it. It is a fragmentary sectional view showing the state where the electrode member of an example of the probe for inspection was inserted into the 2nd example of the coaxial connector device concerning the present invention through the through-hole provided in it.

Modes for carrying out the present invention will be described with reference to first and second embodiments of the present invention described below.

1 to 6 show a first example of a coaxial connector device according to the present invention, together with a coaxial cable having one end attached thereto. In the actual use, the coaxial connector device 10 forming the first example of the coaxial connector device according to the present invention shown in FIGS. 1 to 6 has one end of a coaxial cable 13 having a center conductor 11 and an outer conductor 12. It is supposed to be mounted on a part and engaged and connected to a mating connector device (one example of which is shown in FIGS. 13 to 15 described later) mounted on the component mounting surface of the circuit board.

1 to 6, a coaxial connector device 10 includes, as main components, a signal contact member 14 made of a conductive material, a ground contact member 15 made of a conductive material, and an insulating material such as a synthetic resin material. An insulating housing member 16 formed of a material and supporting the signal contact member 14 and the ground contact member 15 in a mutually insulated state is provided. The signal contact member 14 has a first contact 18 connected to the center conductor 11 of the coaxial cable 13 and a second contact 18 that can selectively take a contact connection state and a non-contact connection state with respect to the first contact 18. The contact 19 is also included, and the ground contact member 15 is an annular fitting portion 20 that is fitted and connected to the ground contact portion of the mating connector device that is an external ground contact portion. And a shell portion 21 extending from the annular fitting portion 20 so as to be bendable. Further, the insulating housing member 16 has a tubular body portion 22 surrounded by the annular fitting portion 20 of the ground contact member 15, and the signal contact member 14 including the first contact 18 and the second contact 19. Is attached to the shell part 21 of the ground contact member 15, and the first housing 23 is attached to the first housing 23 to form a contact receiving space 24 between the first housing 23 and the second housing 23. The housing 25 is included.

The first contact 18 of the signal contact member 14 is formed by punching and bending an electrically conductive plate as a whole, as clearly shown in FIG. 7, which shows the first contact 18 as a single body. And a center conductor connecting portion 31 connected to the center conductor 11 of the coaxial cable 13, and a contacted portion 32 that is bent and extends from the center conductor connecting portion 31. Further, the second contact 19 of the signal contact member 14 is entirely punched and bent on a conductive plate, as clearly shown in FIGS. 8 and 9 showing the second contact 19 as a single body. And elastically deformable portions 33, which are supported by the first housing 23 of the insulating housing member 16 and are disposed in the contact accommodating space 24, and a pair of elastically deformable portions 33 that extend from the elastically deformable portions 33 and face each other. And a contact engagement portion 34.

The elastically deformable portion 33 of the second contact 19 extends from the fixed portion 33a fixed to one end of the tubular portion 22 of the first housing 23 and one end of the fixed portion 33a to extend and face the fixed portion 33a. A movable portion 33b, and a free end portion of the movable portion 33b is separated from the contacted portion 32 of the first contact 18 and the contacted portion 32 of the first contact 18. It forms a contact portion 33c that selectively takes a state and a state. The pair of contact engagement portions 34 of the second contact 19 extend to the other end side of the tubular body portion 22 through the tubular body portion 22 of the first housing 23 and serve as external signal contact portions. The signal contact portion of the mating connector device is sandwiched and brought into contact with and connected to the signal contact portion.

As clearly shown in FIG. 10 showing the ground contact member 15 as a single body, the annular fitting portion 20 of the ground contact member 15 has a plurality of notches with which the portion of the first housing 23 of the insulating housing member 16 is engaged. 39 is formed, and the shell portion 21 of the ground contact member 15 extends from one end of the annular fitting portion 20 and is bent toward the annular fitting portion 20 to form an annular fit. The position facing the one end of the joint 20 is taken. Then, the shell portion 21 is provided with a through hole 35 (first through hole), and a cylindrical portion 36 that protrudes outward of the shell portion 21 around the through hole 35 is provided. The through hole 35 penetrates the tubular portion 36. Further, in the shell portion 21, a pair of first bending engagement pieces 37 that support the coaxial cable 13 by engaging the first contact 18 of the signal contact member 14 with the coaxial cable 13 connected to the center conductor 11. And a pair of second bending engagement pieces 38 are provided. The pair of first bending engagement pieces 37 are contact-connected to the outer conductor 12 of the coaxial cable 13 when engaged with the coaxial cable 13 and supporting the coaxial cable 13.

The first housing 23 in the insulating housing member 16 includes the second housing 25 in the insulating housing member 16 in addition to the tubular body portion 22, as clearly shown in FIG. At the same time, an internal space forming portion 40 that forms the contact accommodating space 24 is provided so as to be continuous with the tubular body portion 22. The internal space forming portion 40 has a first contact fixing portion 41 to which the first contact 18 of the signal contact member 14 is fixedly arranged, and a fixing portion of the elastic deformation portion 33 of the second contact 19 of the signal contact member 14. A second contact fixing portion 42, to which the portion 33a is fixedly arranged, is provided. Further, the inner space forming portion 40 is provided with a plurality of engaging protrusions 43 that protrude outwardly and are respectively engaged with the plurality of notches 39 formed in the annular fitting portion 20 of the ground contact member 15. Has been.

The second housing 25 of the insulating housing member 16 has a tubular portion 36 provided on the shell portion 21 of the ground contact member 15, as shown clearly in FIG. A cylindrical portion 45 that is inserted and fitted is provided through a through hole 35 that penetrates through the through hole 35, and a through hole 46 ( The second through hole) is provided so that one end thereof has an opening inner surface 46a forming an annular tapered surface. As a matter of course, the through hole 46 provided in the second housing 25 has a smaller diameter than the through hole 35 provided in the shell portion 21. Further, in the second housing 25, in addition to the tubular portion 45, an inner space forming portion 40 provided in the first housing 23 in the insulating housing member 16 and an inner space for forming the contact accommodating space 24 are formed. The space forming portion 47 is provided so as to be continuous with the tubular portion 45. The internal space forming part 47 is provided with an engaging part 47 a that engages with the internal space forming part 40 provided in the first housing 23.

As described above, the signal contact member 14 including the first contact 18 and the second contact 19, the ground contact member 15 having the annular fitting portion 20 and the shell portion 21, and the first housing. In the coaxial connector device 10 including the insulating housing member 16 including the second housing 25 and the second housing 25, the second housing 25 has the tubular portion 45 provided in the shell portion 21 of the ground contact member 15. The center conductor connecting portion of the first contact 18 constituting the signal contact member 14 is fitted into the provided tubular portion 36 through the through hole 35 and attached to the shell portion 21 of the ground contact member 15. 31 is connected to the center conductor 11 of the coaxial cable 13, and the shell portion 21 of the ground contact member 15 has a pair of first bending engagement pieces 37 and a pair of second bending engagement pieces 38 therein. And a pair of first bending engagement pieces 37 are contacted and connected to the outer conductor 12 of the coaxial cable 13, and are attached to one end of the coaxial cable 13.

In the coaxial connector device 10 thus attached to one end of the coaxial cable 13, the second housing 25 is opposed to the first housing 23, and the internal space forming portion 40 of the first housing 23 is provided. The engaging portion 47 a provided in the internal space forming portion 47 of the second housing 25 is engaged with the internal space forming portion 40 and the internal space forming portion 47 to form the contact accommodating space 24. As shown in FIGS. 5 and 6, the contacted portion 32 of the first contact 18 in which the central conductor connecting portion 31 is connected to the central conductor 11 of the coaxial cable 13 extends into the contact accommodating space 24, and the contact accommodating space 24 is accommodated. In the space 24, the contact portion 33c formed by the free end of the movable portion 33b of the elastically deformable portion 33 of the second contact 19 is brought into contact with the contacted portion 32 of the first contact 18. At this time, the pair of contact engagement portions 34 extending from the elastically deformable portion 33 of the second contact 19 are arranged inside the tubular body portion 22 of the first housing 23.

In addition, as shown in FIGS. 5 and 6, the cylindrical portion 36 provided in the shell portion 21 of the ground contact member 15 is inserted and fitted into the tubular portion 36 through the through hole 35 that penetrates the tubular portion 36. The through hole 46 penetrating the tubular portion 45 of the housing 25 has the other end opened to the contact housing space 24, and the opened portion faces the movable portion 33b of the elastic deformation portion 33 of the second contact 19. There is. Under such a condition, the through hole 35 provided in the shell portion 21 of the ground contact member 15 and the through hole 46 provided in the second housing 25 having a smaller diameter than the through hole 35 are provided in the second housing 25. Further, a through hole 48 is formed in the shell portion 21 of the ground contact member 15 so as to penetrate therethrough and allows the contact accommodation space 24 to communicate with the outside of the shell portion 21.

In addition, as shown in FIG. 1, a plurality of engagements formed in the space forming portion 40 of the first housing 23 in a plurality of notches 39 formed in the annular fitting portion 20 of the ground contact member 15. The projections 43 are brought into the engaged state. Further, as shown in FIG. 5, in the ground contact member 15, the shell portion 21 that is bent toward the annular fitting portion 20 and is positioned to face one end of the annular fitting portion 20 is , The pair of first bending engagement pieces 37 provided therein are contact-connected to the outer conductor 12 of the coaxial cable 13 in which the central conductor connecting portion 31 of the first contact 18 is connected to the central conductor 11. Thereby, the shell portion 21 of the ground contact member 15 is placed in a connected state with the outer conductor 12 of the coaxial cable 13.

13 to 15 show a mating connector device 50 which is an example of a mating connector device to which the coaxial connector device 10 mounted on one end of the coaxial cable 13 is engaged and connected. In actual use, the mating connector device 50 is attached to a component mounting surface of a circuit board (not shown).

13 to 15, the mating connector device 50 includes an insulating base 51 formed of an insulating material such as a synthetic resin material and arranged on the component mounting surface of the circuit board to which the mating connector device 50 is fixed. There is. The insulating base 51 has a bottom surface portion 51a that contacts the component mounting surface of the circuit board to which the mating connector device 50 is fixed, and an upper surface portion 51b that faces the bottom surface portion 51a, and the annular protrusion 52 is provided at the center of the upper surface portion 51b. Are formed.

In addition, the mating connector device 50 is formed of, for example, an elastic conductive material such as an alloy plate material, and the insulating base 51 is surrounded by an annular protrusion 52 formed in the central portion of the upper surface portion 51b. The signal contact portion 53 is attached to the insulating base 51 so as to penetrate from the portion 51a side to the upper surface portion 51b side. The signal contact portion 53 includes a contact connection portion 53a that forms a columnar portion that extends from the bottom surface portion 51a side to the top surface portion 51b side of the insulating base 51, and the contact connection portion 53a from the insulating base 51 at the bottom surface portion 51a of the insulating base 51. And a signal connecting portion 53b extending to the outside of the. The pair of contact engagement portions 34 of the second contact 19 constituting the signal contact member 14 of the coaxial connector device 10 engaged and connected to the mating connector device 50 are contact connected to the contact connection portion 53a. The signal connecting portion 53b is connected to a signal terminal provided on a circuit board having a component mounting surface on which the insulating base 51 is arranged, for example, by soldering.

Further, the mating connector device 50 is formed of, for example, an elastic conductive material such as an alloy plate material, and on the upper surface portion 51b side of the insulating base 51, around the annular protruding portion 52 formed on the upper surface portion 51b. A ground contact portion 54 assembled to the insulating base 51 is provided to form an annular body disposed in the. The ground contact portion 54 is provided with a plurality of ground connection portions 54a that penetrate the insulating base body 51 and extend to the outside of the insulating base body 51 on the bottom surface portion 51a side of the insulating base body 51. The ground contact portion 54 is to be fitted and connected to the annular fitting portion 20 of the ground contact member 15 of the coaxial connector device 10 that is engaged and connected to the mating connector device 50, and the ground connecting portion 54a is an insulating base. It is connected to a ground terminal provided on a circuit board having a component mounting surface on which 51 is arranged, for example, by soldering.

Then, as shown in FIGS. 16 to 19, the counterpart connector device 50 fixed on the component mounting surface of the circuit board as described above is mounted on one end of the coaxial cable 13 described above. 10 is engaged and connected.

When the coaxial connector device 10 mounted on one end of the coaxial cable 13 is engaged and connected to the counterpart connector device 50 fixed on the component mounting surface of the circuit board, the ground contact member of the coaxial connector device 10 is used. The annular fitting portion 20 of 15 is fitted and connected to the ground contact portion 54 of the mating connector device 50. At the same time, the tubular body portion 22 of the first housing 23 of the coaxial connector device 10 is formed on the upper surface portion 51b of the insulating base body 51 surrounded by the ground contact portion 54 of the counterpart connector device 50. Of the coaxial connector device 10 arranged inside the cylindrical body portion 22 and the contact connecting portion 53a of the signal contact portion 53 of the counterpart connector device 50 is inserted into the cylindrical body portion 22 and arranged inside the cylindrical body portion 22. The pair of contact engagement portions 34 of the second contact 19 sandwiches the contact connection portion 53a of the signal contact portion 53 of the mating connector device 50 and is contact-connected to the signal contact portion 53.

In this way, the pair of contact engagement portions 34 of the second contact 19 of the coaxial connector device 10 sandwiches the contact connection portion 53a of the signal contact portion 53 of the counterpart connector device 50, and the signal contact portion 53 is connected to the signal contact portion 53. Under contact connection, the fixed portion 33a of the elastically deformable portion 33 of the second contact 19 covers the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53. That is, when the pair of contact engagement portions 34 of the second contact 19 of the coaxial connector device 10 are contact-connected to the signal contact portion 53 of the mating connector device 50, the elastic deformation portion 33 of the second contact 19 becomes The fixed portion 33a that it has is positioned to cover the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53.

Thereby, for example, dust or the like from the outside of the coaxial connector device 10 is provided in the through hole 35 provided in the shell portion 21 of the ground contact member 15 and the through hole provided in the second housing 25 constituting the insulating housing member 16. Even if the dust or the like enters the contact accommodating space 24 through the through hole 48 that is formed and opened by the second housing 25 and the shell portion 21 of the ground contact member 15, the dust and the like will be generated. The risk of being attached to the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53, which is supposed to be covered by the elastic deformation portion 33 of the second contact 19, is significantly reduced.

As described above, the annular fitting portion 20 of the ground contact member 15 of the coaxial connector device 10 is fitted and connected to the ground contact portion 54 of the mating connector device 50, so that the ground contact member 15 of the coaxial connector device 10 is fitted. The outer conductor 12 of the coaxial cable 13 to which the shell portion 21 is contact-connected is connected to the ground contact portion 54 of the mating connector device 50 via the shell portion 21 and the annular fitting portion 20 of the ground contact member 15, and the circuit board. Will be electrically connected to the ground terminal provided on the. At the same time, the pair of contact engagement portions 34 of the second contacts 19 that form the signal contact member 14 of the coaxial connector device 10 are contact-connected to the contact connection portions 53a of the signal contact portions 53 of the counterpart connector device 50. As a result, the central conductor 11 of the coaxial cable 13 to which the central conductor connecting portion 31 of the first contact 18 of the coaxial connector device 10 is connected is connected to the contacted portion 32 of the first contact 18 and the contact connected thereto. A circuit board is connected to the signal contact portion 53 of the counterpart connector device 50 via the elastically deformable portion 33 of the second contact 19 having the portion 33c and the pair of contact engagement portions 34 extending from the elastically deformable portion 33. Will be electrically connected to the signal terminal provided on the.

Under such circumstances, a circuit device, for example, an integrated circuit chip, which is mounted on the component mounting surface of the circuit board to which the counterpart connector device 50 is fixed and which is connected to the signal terminal provided on the circuit board, is inspected. It is required to inspect the circuit device in question by connecting it to, and therefore, it is necessary to take out a high frequency signal generated by the circuit device to be inspected from the signal contact portion 53 of the counterpart connector device 50. Conceivable. An inspection device whose circuit device is an inspection target at that time generally includes an inspection probe connected to the inspection target. 16 to 19 show a portion of an inspection probe 60 which is an example of such an inspection probe.

The portion of the inspection probe 60 shown in FIGS. 16 to 19 is supposed to extend from, for example, an inspection device for an integrated circuit chip (not shown), and has a cylindrical outer cylinder portion 61 and an outer cylinder. And a cylindrical inner cylinder portion 62 coaxially arranged in the portion 61, and the inner cylinder portion 62 is electrically connected to the inspection device and the inner cylinder portion 62 is arranged in the axial direction thereof. A relatively thin rod-shaped electrode member 63 that penetrates through is disposed. A flat bottom engagement recess 64 is formed at one end of the outer cylinder portion 61 and the inner cylinder portion 62 that are coaxially arranged. The electrode member 63 is movable in the inner tubular portion 62 in the axial hole direction of the inner tubular portion 62, and the tip portion 63 a of the electrode member 63 is moved from the inner tubular portion 62 to the flat bottom engaging recess 64 as necessary. The outer cylindrical portion 61 and the inner cylindrical portion 62 are projected to the outside through the.

Such an inspection probe 60 whose portion is shown in FIGS. 16 to 19 is first shown in FIGS. 16 and 17 when inspecting a circuit device connected to a signal terminal provided on a circuit board. Further, a flat bottom engagement recess 64 formed at one end of the outer tubular portion 61 and the inner tubular portion 62 is provided in the shell portion 21 of the ground contact member 15 in the coaxial connector device 10 engaged and connected to the mating connector device 50. The cylindrical portion 36 and the second housing 25 are disposed at positions facing the cylindrical portion 45 provided in the cylindrical portion 36 and fitted in the cylindrical portion 36. At this time, the electrode member 63 arranged in the inner cylinder portion 62 of the inspection probe 60 is provided in the second housing 25 such that the tip end portion 63 a thereof forms the through hole 48 in the coaxial connector device 10. The through hole 46 penetrating the tubular portion 45 is arranged corresponding to one end portion having an opening inner surface 46a forming an annular tapered surface.

Next, the inspection probe 60 is brought close to the coaxial connector device 10 engaged and connected to the mating connector device 50, and as shown in FIGS. 18 and 19, the outer cylinder portion 61 and the inner cylinder of the inspection probe 60. The flat-bottom engagement recess 64 formed at one end of the portion 62 is brought into contact with the tubular portion 36 provided on the shell portion 21 of the ground contact member 15 of the coaxial connector device 10. Subsequently, as shown in FIGS. 18 and 19, the electrode member 63 of the inspection probe 60 has its tip portion 63a from the inside of the inner cylinder portion 62 through the flat bottom engagement recess 64 to the outer cylinder portion 61 and the inner cylinder portion 62. Of the electrode member 63, and the distal end portion 63a of the electrode member 63 forms an annular tapered surface in the through hole 46 that penetrates the tubular portion 45 provided in the second housing 25 of the coaxial connector device 10. It is inserted from one end side of a through hole 46 having an opening inner surface 46a, and is formed inside the first housing 23 and the second housing 25 which form the insulating housing member 16 in the coaxial connector device 10 through the through hole 46. The contact accommodation space 24 is reached. The distal end portion 63a of the electrode member 63 that has reached the contact housing space 24 is moved by pressingly contacting the movable portion 33b of the elastically deformable portion 33 of the second contact 19 that constitutes the signal contact member 14 of the coaxial connector device 10. The portion 33b causes an elastic displacement in which the portion 33b is displaced toward the fixed portion 33a of the elastically deformable portion 33.

The movable portion 33b, which has undergone such elastic displacement, separates the contact portion 33c formed by its free end from the contacted portion 32 of the first contact 18 that constitutes the signal contact member 14 together with the second contact 19. The contact portion 33c is released from the contact connection state with the contacted portion 32 of the first contact 18, and only the tip portion 63a of the electrode member 63 is contact-connected. As a result, the high-frequency signal from the circuit device to be inspected, which is transmitted to the signal contact portion 53 of the counterpart connector device 50 through the signal terminal provided on the circuit board, is contact-connected to the contact connecting portion 53a of the signal contact portion 53. The second contact 19 having the pair of contact engagement portions 34 and the elastically deformable portion 33, and the electrode member 63 that is in contact with the movable portion 33b of the elastically deformable portion 33 of the second contact 19 are taken out. Then, the electrode member 63 is supplied to the connected inspection device. As a result, the inspection device inspects the circuit device.

After the inspection of the circuit device is completed, the electrode member 63 of the inspection probe 60 penetrates the contact housing space 24 of the coaxial connector device 10 and the tubular portion 45 provided in the second housing 25. When removed from inside the contact housing space 24, the movable portion 33b of the elastically deformable portion 33 of the second contact 19 returns to its original position by its own elasticity in the contact accommodation space 24, and the contact portion 33c formed by its free end portion. To be in contact with the contacted portion 32 of the first contact 18.

According to the coaxial connector device 10 as described above, the coaxial connector device 10 is insulated from the through hole 35 provided in the shell portion 21 of the ground contact member 15 while the coaxial connector device 10 is engaged and connected to the mating connector device 50. A contact accommodation space is formed through a through hole 48 that is formed by a through hole 46 provided in the second housing 25 that constitutes the housing member 16 and that passes through each of the second housing 25 and the shell portion 21 of the ground contact member 15. A high frequency signal is transmitted from the signal contact portion 53 of the mating connector device 50 through the electrode member 63 of the inspection probe 60 that is inserted into the contact housing space 24 and abuts the second contact 19 that constitutes the signal contact member 14 in the contact housing space 24. You can take it out.

Moreover, according to the coaxial connector device 10, when the pair of contact engagement portions 34 of the second contact 19 of the coaxial connector device 10 are contact-connected to the signal contact portion 53 of the counterpart connector device 50, the second contact is formed. The elastically deformable portion 33 of 19 is positioned so as to cover the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53 by the fixed portion 33a of the elastic deformable portion 33, and thereby, for example, the coaxial connector device. A second opening formed from the outside by a through hole 35 provided in the shell portion 21 of the ground contact member 15 and a through hole 46 provided in the second housing 25 constituting the insulating housing member 16, It is assumed that the dust and the like that have entered the contact accommodation space 24 through the through holes 48 penetrating the housing 25 and the shell portion 21 of the ground contact member 15 are covered by the elastic deformation portion 33 of the second contact 19. In addition, the risk of being attached to the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53 is significantly reduced. Therefore, for example, a lid member that closes the through hole 46 provided in the second housing 25 that constitutes the insulating housing member 16 is not required, and the structure is opened with a structure that does not increase the number of members and does not bother the work. It is possible to avoid a situation in which dust or the like that has entered through the formed through-hole 48 adversely affects the contact connection state between the signal contact member 14 and the signal contact portion 53 of the mating connector device 50.

20 to 24 show a second example of the coaxial connector device according to the present invention, together with a coaxial cable having one end attached thereto. 20 to 24, the coaxial connector device 70 forming the second example of the coaxial connector device according to the present invention also has a coaxial cable 13 having the above-described center conductor 11 and outer conductor 12 in actual use. Is mounted on one end portion of the above and is engaged and connected to the above-described mating connector device 50 mounted on the component mounting surface of the circuit board.

The coaxial connector device 70 has many members and parts configured similarly to the above-mentioned coaxial connector device 10, and the members and parts configured similarly to such a coaxial connector device 10 are shown in FIGS. In FIG. 24, the same reference numerals as those of the coaxial connector device 10 are attached, and detailed description thereof is omitted.

The coaxial connector device 70 includes, as main components, a signal contact member 14 made of a conductive material, a ground contact member 71 made of a conductive material, and an insulating material such as a synthetic resin material. And an insulating housing member 72 that supports the signal contact member 14 and the ground contact member 71 in a mutually insulated state. The ground contact member 71 is an annular fitting portion 20 that is fitted and connected to the ground contact portion 54 of the counterpart connector device 50, which is an external ground contact portion, and a shell portion that extends from the annular fitting portion 20 and is bendable. It has 73. Further, the insulating housing member 72 has a tubular body portion 22 surrounded by the annular fitting portion 20 of the ground contact member 71, and includes the first contact 18 and the second contact 19, and the signal contact member 14 is provided. Is attached to the shell part 73 of the ground contact member 71 and the first housing 23 to which is attached the second housing 23 in which the contact housing space 24 is formed between the first housing 23 and the first housing 23 so as to face each other. And a housing 74. The signal contact member 14 is the same as the signal contact member 14 in the coaxial connector device 10 described above.

As clearly shown in FIG. 25 showing the ground contact member 71 alone, the annular fitting portion 20 of the ground contact member 71 is similar to the annular fitting portion 20 of the ground contact member 15 in the coaxial connector device 10 described above. Further, the shell portion 73 of the ground contact member 71 extends from one end of the annular fitting portion 20, is bent toward the annular fitting portion 20, and is attached to one end of the annular fitting portion 20. It is supposed to take opposite positions. Further, the shell portion 73 is provided with a through hole 75 (first through hole) having an opening inner surface 75 a forming an annular tapered surface formed at one end thereof, and is adjacent to the through hole 75. An engagement hole 76 formed as a through hole is also provided. Furthermore, in the shell portion 73, the pair of first bending engagement pieces 37 that support the coaxial cable 13 by engaging the first contact 18 of the signal contact member 14 with the coaxial cable 13 connected to the center conductor 11. And a pair of second bending engagement pieces 38 are provided. The first bending engagement piece 37 and the second bending engagement piece 38 are the first bending engagement piece 37 and the second bending engagement piece 37 provided in the shell portion 21 of the ground contact member 15 of the coaxial connector device 10 described above. It is similar to the bending engagement piece 38 of No. 2.

The first housing 23 of the insulating housing member 72 is the same as the first housing 23 of the insulating housing member 16 of the coaxial connector device 10 described above, and the second housing 74 of the insulating housing member 72 is As clearly shown in FIG. 26, which shows the second housing 74 as a single body, a through hole 77 (second through hole) having a smaller diameter than the through hole 75 provided in the shell portion 73 of the ground contact member 71 is formed. It is assumed that the opening inner surface 77a forming an annular taper surface is formed at one end. Then, the second housing 74 is provided with an engagement protrusion 78 that is in a state of being fitted and engaged with an engagement hole 76 provided in the shell portion 73 of the ground contact member 71. In addition to the internal space forming part 40 provided in the housing 23, the internal space forming part 79 for forming the contact accommodating space 24 is provided. The internal space forming part 79 is provided with an engaging part 79 a that engages with the internal space forming part 40 provided in the first housing 23.

As described above, the signal contact member 14 including the first contact 18 and the second contact 19, the ground contact member 71 having the annular fitting portion 20 and the shell portion 73, and the first housing. In the coaxial connector device 70 including the insulating housing member 72 including the second housing 74 and the second housing 74, the second housing 74 has the engaging protrusion 78 provided on the shell connector 73 of the ground contact member 71. The center conductor connecting portion 31 of the first contact 18 of the signal contact member 14 is coaxial with the engaging portion 76 of the first contact 18 which is fitted and engaged with the shell portion 73 of the ground contact member 71. The shell portion 73 of the ground contact member 71 is connected to the center conductor 11 of the cable 13, and the pair of first bending engagement pieces 37 and the pair of second bending engagement pieces 38 thereof support the coaxial cable 13. The pair of first bending engagement pieces 37 are connected to the outer conductor 12 of the coaxial cable 13 by contact, and are attached to one end of the coaxial cable 13.

In the coaxial connector device 70 thus attached to one end of the coaxial cable 13, the second housing 74 is opposed to the first housing 23, and the internal space forming portion 40 of the first housing 23 is provided. The engaging portion 79a provided in the internal space forming portion 79 of the second housing 74 is engaged with the internal space forming portion 40 and the internal space forming portion 79 to form the contact accommodating space 24. 23 and FIG. 24, the contacted portion 32 of the first contact 18 in which the central conductor connecting portion 31 is connected to the central conductor 11 of the coaxial cable 13 extends into the contact accommodating space 24, and the contact accommodating space 24 is accommodated. In the space 24, the contact portion 33c formed by the free end of the movable portion 33b of the elastically deformable portion 33 of the second contact 19 is brought into contact with the contacted portion 32 of the first contact 18. At this time, the pair of contact engagement portions 34 extending from the elastically deformable portion 33 of the second contact 19 are arranged inside the tubular body portion 22 of the first housing 23.

Further, as shown in FIGS. 23 and 24, the through hole 75 provided in the shell portion 73 of the ground contact member 71 is located outside the through hole 77 provided in the second housing 74 having a smaller diameter than the through hole 75. The virtual center axis of the through hole 75 and the virtual center axis of the through hole 77 substantially coincide with each other. The other end of the through hole 77 arranged inside the through hole 75 is opened to the contact accommodation space 24, and the opening portion is opposed to the movable portion 33b of the elastic deformation portion 33 of the second contact 19. ing. Under such a condition, the through hole 75 provided in the shell portion 73 of the ground contact member 71 and the through hole 77 provided in the second housing 74 having a smaller diameter than the through hole 75 are provided in the second housing 74. Also, a through hole 80 is formed in the shell portion 73 of the ground contact member 71 so as to penetrate therethrough and allows the contact housing space 24 to communicate with the outside of the shell portion 73.

In addition to that, as shown in FIG. 20, a plurality of notches 39 (only one notch 39 is shown in FIG. 20) formed in the annular fitting portion 20 of the ground contact member 71. The plurality of engaging protrusions 43 formed in the space forming portion 40 of the first housing 23 are engaged with each other. Further, as shown in FIG. 23, in the ground contact member 71, the shell portion 73 which is bent toward the annular fitting portion 20 and has a position facing one end of the annular fitting portion 20 is , The pair of first bending engagement pieces 37 provided therein are contact-connected to the outer conductor 12 of the coaxial cable 13 in which the central conductor connecting portion 31 of the first contact 18 is connected to the central conductor 11. As a result, the shell portion 73 of the ground contact member 71 is placed in a connected state with the outer conductor 12 of the coaxial cable 13.

Then, as shown in FIGS. 27 to 30, the coaxial connector device 70 attached to one end of the coaxial cable 13 is fixed to the component mounting surface of the circuit board and shown in FIGS. 13 to 15 described above. The mating connector device 50 is engaged and connected.

When the coaxial connector device 70 attached to one end of the coaxial cable 13 is engaged and connected to the counterpart connector device 50 fixed on the component mounting surface of the circuit board, the ground contact member of the coaxial connector device 70 is used. The annular fitting portion 20 at 71 is fitted and connected to the ground contact portion 54 of the mating connector device 50. At the same time, the tubular body portion 22 of the first housing 23 of the coaxial connector device 70 is formed on the upper surface portion 51b of the insulating base body 51 surrounded by the ground contact portion 54 of the counterpart connector device 50. Of the coaxial connector device 70 arranged inside the cylindrical body portion 22 and the contact connecting portion 53a of the signal contact portion 53 of the counterpart connector device 50 is inserted into the cylindrical body portion 22 and arranged inside the cylindrical body portion 22. The pair of contact engagement portions 34 of the second contact 19 sandwiches the contact connection portion 53a of the signal contact portion 53 of the mating connector device 50 and is contact-connected to the signal contact portion 53.

In this way, the pair of contact engaging portions 34 of the second contact 19 of the coaxial connector device 70 sandwiches the contact connecting portion 53a of the signal contact portion 53 of the mating connector device 50, and the signal contact portion 53 is connected to the signal contact portion 53. Under contact connection, the fixed portion 33a of the elastically deformable portion 33 of the second contact 19 covers the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53. That is, when the pair of contact engaging portions 34 of the second contact 19 of the coaxial connector device 70 are contact-connected to the signal contact portion 53 of the counterpart connector device 50, the elastic deformation portion 33 of the second contact 19 becomes The fixed portion 33a that it has is positioned to cover the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53.

Thereby, for example, dust or the like from the outside of the coaxial connector device 70 is provided in the through hole 75 provided in the shell portion 73 of the ground contact member 71 and the through hole provided in the second housing 74 constituting the insulating housing member 72. Even if the dust or the like penetrates into the contact housing space 24 through the through hole 80 that is formed and opened by the second housing 74 and the shell portion 73 of the ground contact member 71, the dust and the like will be generated. The risk of being attached to the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53, which is supposed to be covered by the elastic deformation portion 33 of the second contact 19, is significantly reduced.

As described above, the annular fitting portion 20 of the ground contact member 71 of the coaxial connector device 70 is fitted and connected to the ground contact portion 54 of the mating connector device 50, so that the ground contact member 71 of the coaxial connector device 70. The outer conductor 12 of the coaxial cable 13 to which the shell portion 73 is contact-connected is connected to the ground contact portion 54 of the mating connector device 50 via the shell portion 73 of the ground contact member 71 and the annular fitting portion 20, and the circuit board. Will be electrically connected to the ground terminal provided on the. At the same time, the pair of contact engagement portions 34 of the second contacts 19 that form the signal contact member 14 of the coaxial connector device 70 are contact-connected to the contact connection portions 53a of the signal contact portions 53 of the counterpart connector device 50. As a result, the central conductor 11 of the coaxial cable 13 to which the central conductor connecting portion 31 of the first contact 18 in the coaxial connector device 70 is connected is connected to the contacted portion 32 of the first contact 18 and the contact connected thereto. A circuit board is connected to the signal contact portion 53 of the counterpart connector device 50 via the elastically deformable portion 33 of the second contact 19 having the portion 33c and the pair of contact engagement portions 34 extending from the elastically deformable portion 33. Will be electrically connected to the signal terminal provided on the.

Under such circumstances, a circuit device, for example, an integrated circuit chip, which is mounted on the component mounting surface of the circuit board to which the counterpart connector device 50 is fixed and which is connected to the signal terminal provided on the circuit board, is inspected. It is required to inspect the circuit device in question by connecting it to, and therefore, it is necessary to take out a high frequency signal generated by the circuit device to be inspected from the signal contact portion 53 of the counterpart connector device 50. Conceivable. An inspection device whose circuit device is an inspection target at that time generally includes an inspection probe connected to the inspection target. 27 to 30 show a portion of an inspection probe 90 which is an example of such an inspection probe.

The portion of the inspection probe 90 shown in FIGS. 27 to 30 is supposed to extend from, for example, an inspection device for an integrated circuit chip (not shown), and has a cylindrical outer cylinder portion 91 and an outer cylinder. And a cylindrical inner cylinder portion 92 arranged coaxially in the portion 91, and the inner cylinder portion 92 is electrically connected to the inspection device and the inner cylinder portion 92 is arranged in the axial direction thereof. A relatively thin rod-shaped electrode member 93 that penetrates through is disposed. A through hole 94 that communicates from one end surface of the inner tubular portion 92 to the outside of the outer tubular portion 91 is formed in one end portion of the outer tubular portion 91, and the outer surface portion of the one end portion of the outer tubular portion 91 is transparent. An annular engagement protrusion 95 having a tapered outer peripheral surface 95a surrounding the hole 94 is formed. The electrode member 93 is movable in the inner tubular portion 92 in the axial hole direction of the inner tubular portion 92, and the tip portion 93 a of the electrode member 93 is moved from the inner tubular portion 92 to the outer tubular portion 91 as necessary. The outer cylinder portion 91 is projected to the outside through a through hole 94 formed at one end.

The inspection probe 90, the portion of which is shown in FIGS. 27 to 30, as described above, inspects the circuit device connected to the signal terminal of the circuit board supporting the counterpart connector device 50 to which the coaxial connector device 70 is fitted and connected. In doing so, first, as shown in FIGS. 27 and 28, a coaxial connector in which an annular engagement convex portion 95 formed on the outer surface portion of one end of the outer tubular portion 91 is engaged and connected to the counterpart connector device 50. It is arranged at a position facing the through hole 75 provided in the shell portion 73 of the ground contact member 71 in the device 70. At this time, the tip portion 93 a of the electrode member 93 arranged in the inner cylindrical portion 92 of the inspection probe 90 is the same as the through hole 75 provided in the shell portion 73 of the ground contact member 71 of the coaxial connector device 70. The through hole 77 formed in the second housing 74 and the through hole 80 formed therein are arranged to correspond to the through holes 80.

Next, the inspection probe 90 is brought close to the coaxial connector device 70 engaged and connected to the mating connector device 50, and as shown in FIGS. 29 and 30, one end portion of the outer cylinder portion 91 of the inspection probe 90. The annular engagement convex portion 95 formed on the outer surface portion of the is brought into contact with the opening inner surface 75a of the through hole 75 formed in the shell portion 73 of the ground contact member 71 in the coaxial connector device 70. Subsequently, as shown in FIGS. 29 and 30, the electrode member 93 of the inspection probe 90 has its tip portion 93 a passed through the through hole 94 formed in the inner cylindrical portion 92 and at one end of the outer cylindrical portion 91. The tip portion 93a of the electrode member 93 is projected to the outside of the outer tubular portion 91, and the tip end portion 93a of the electrode member 93 is provided in the through hole 75 provided in the shell portion 73 of the ground contact member 71 of the coaxial connector device 70 and the second housing 74. Through the through hole 77 provided, the contact housing space 24 formed inside the first housing 23 and the second housing 74 forming the insulating housing member 72 of the coaxial connector device 70 is reached. The tip portion 93a of the electrode member 93 reaching the contact accommodating space 24 is pressed against and brought into contact with the movable portion 33b of the elastically deformable portion 33 of the second contact 19 of the signal contact member 14 of the coaxial connector device 70, so that the movable portion 33b is movable. The portion 33b causes an elastic displacement in which the portion 33b is displaced toward the fixed portion 33a of the elastically deformable portion 33.

The movable portion 33b, which has undergone such elastic displacement, separates the contact portion 33c formed by its free end from the contacted portion 32 of the first contact 18 that constitutes the signal contact member 14 together with the second contact 19. The contact portion 33c is released from the contact connection state with the contacted portion 32 of the first contact 18, and only the tip portion 93a of the electrode member 93 is contact-connected. As a result, the high-frequency signal from the circuit device to be inspected, which is transmitted to the signal contact portion 53 of the counterpart connector device 50 through the signal terminal provided on the circuit board, is contact-connected to the contact connecting portion 53a of the signal contact portion 53. The second contact 19 having the pair of contact engaging portions 34 and the elastically deformable portion 33, and the electrode member 93 that is in contact with the movable portion 33b of the elastically deformable portion 33 of the second contact 19 are taken out. Then, the electrode member 93 is supplied to the connected inspection device. As a result, the inspection device inspects the circuit device.

As described above, according to the coaxial connector device 70, the coaxial connector device 70 is insulated from the through hole 75 provided in the shell portion 73 of the ground contact member 71 while the coaxial connector device 70 is engaged and connected to the mating connector device 50. A contact accommodation space is formed by a through hole 80 formed through the through hole 77 provided in the second housing 74 that constitutes the housing member 16 and penetrating each of the second housing 74 and the shell portion 73 of the ground contact member 71. A high frequency signal is transmitted from the signal contact portion 53 of the mating connector device 50 through the electrode member 93 of the inspection probe 90 that is inserted into the contact housing space 24 and contacts the second contact 19 that constitutes the signal contact member 14 in the contact housing space 24. You can take it out.

Moreover, according to the coaxial connector device 70, when the pair of contact engagement portions 34 of the second contact 19 of the coaxial connector device 70 are contact-connected to the signal contact portion 53 of the counterpart connector device 50, the second contact is formed. The elastically deformable portion 33 of 19 is positioned so as to cover the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53 by the fixed portion 33a of the elastic deformable portion 33, and thereby, for example, the coaxial connector device. The second opening 70 is formed from the outside by the through hole 75 provided in the shell portion 73 of the ground contact member 71 and the through hole 77 provided in the second housing 74 forming the insulating housing member 72. It is assumed that the dust and the like that have entered the contact housing space 24 through the through holes 80 that penetrate the housing 74 and the shell portion 73 of the ground contact member 71 are covered by the elastic deformation portion 33 of the second contact 19. In addition, the risk of being attached to the contact connection portion of the pair of contact engagement portions 34 with the signal contact portion 53 is significantly reduced. Therefore, for example, the opened through-hole has a structure that does not require a lid member or the like for closing the through hole 75 provided in the shell portion 73 of the ground contact member 71, and does not cause an increase in the number of members and a troublesome operation. It is possible to avoid a situation in which dust or the like that has entered through 80 adversely affects the contact connection state between the signal contact member 14 and the signal contact portion 53 of the mating connector device 50.

The coaxial connector device according to the present invention as described above includes a signal contact member that is in a state of connecting the center conductor of the coaxial cable to the signal contact portion of the counterpart connector device, and a shell portion that is connected to the outer conductor of the coaxial cable. And a ground contact member that connects the outer conductor of the coaxial cable to the ground contact portion of the counterpart connector device, and an insulating housing member that supports the signal contact member and the ground contact member in a mutually insulated state. Under the condition of being engaged and connected to the connector device, a high frequency signal is transmitted from the signal contact part of the counterpart connector device through the external electrode member inserted through the through hole penetrating each of the shell parts of the insulating housing member and the ground contact member. With a structure that can be taken out and does not cause an increase in the number of members and inconvenience in work, dust and the like that have entered through the open through holes are in a contact connection state between the signal contact member and the signal contact part of the counterpart connector device. The present invention can be widely applied to various electronic devices and the like as a device capable of avoiding a situation that adversely affects.

10, 70... Coaxial connector device, 11... Center conductor, 12... Outer conductor, 13... Coaxial cable, 14... Signal contact member, 15, 71... Ground contact member, 16 , 72... Insulating housing member, 18... First contact, 19... Second contact, 20... Annular fitting part, 21, 73... Shell part, 22... Cylinder Body part, 23... 1st housing, 24... Contact accommodation space, 25, 74... 2nd housing, 31... Central conductor connection part, 32... Contacted part, 33 ... elastically deforming part, 33a... fixed part, 33b... movable part, 33c... contact part, 34... contact engaging part, 35, 46, 75, 77... through hole, 36, 45... Cylindrical portion, 37... First bending engagement piece, 38... Second bending engagement piece, 40, 47, 79... Internal space forming portion, 48, 80 , 94... Through hole, 50... Opposite connector device, 51... Insulating substrate, 53... Signal contact part, 54... Ground contact part, 60, 90... Inspection probe, 61 , 91... Outer cylinder part, 62, 92... Inner cylinder part, 63, 93... Electrode member, 64... Flat bottom engaging concave part, 95... Annular engaging convex part

Claims (5)

A signal contact member that is in a state of connecting the center conductor of the coaxial cable to the external signal contact portion,
A ground contact member having an annular fitting portion fitted and connected to the external ground contact portion, and a shell portion extending from the annular fitting portion so as to be bendable and in a connected state with the outer conductor of the coaxial cable. When,
An insulating housing member that supports the signal contact member and the ground contact member in a mutually insulated state,
Is configured with
The insulating housing member has a tubular body portion surrounded by an annular fitting portion of the ground contact member, and is attached to a first housing to which the signal contact member is attached and a shell portion of the ground contact member. And a second housing in a state where the first housing forms a contact accommodating space between the first housing and the first housing so as to face each other,
The second housing and the shell portion are penetrated through the second housing and the shell portion, respectively, and the contact housing space is formed under the condition that the second housing faces the first housing. A through hole that communicates with the outside of the shell portion is provided,
The signal contact member includes a first contact that is connected to the center conductor of the coaxial cable and extends into the contact accommodating space, an elastically deformable portion disposed in the contact accommodating space, and the elastically deformable portion. A second contact having a contact engagement portion that extends through the tubular body portion of the first housing and is in contact with and connected to the external signal contact portion,
The elastically deformable portion of the second contact hides at least a part of a contact connection portion of the contact engagement portion extending from the elastically deformable portion with the external signal contact portion as viewed from the through hole. The second housing is arranged at a position corresponding to one end of the through hole in the contact accommodating space while facing the first housing, and the first contact is arranged in the contact accommodating space. And a contacted portion with which the external electrode member inserted into the contact accommodating space from the outside of the shell portion abuts through the through hole, and the contact portion is connected to the first portion. Selectively contacting the contact with the contact and connecting the contact portion with the external electrode member elastically deforms to separate the contact portion from the first contact.
A coaxial connector device. The contacted portion of the elastically deformable portion of the second contact abuts the contacted portion in a state where the contact portion of the elastically deformable portion of the second contact is separated from the first contact. above adversely resilient contact pressing force to the external electrode members, in the state where the contact portion of the elastic deformation portion of the second contact is brought into contact connected to the first contact, the said contact portion, said first contact coaxial connector according to claim 1, wherein the assume a to state adversely resilient contact pressing force. The through hole formed in the second housing and the shell part has a diameter smaller than that of the first through hole provided in the shell part and the first through hole provided in the second housing. The coaxial connector device according to claim 1, wherein the coaxial connector device comprises a through hole. The shell portion has a first tubular portion that projects outward of the shell portion around the first through hole, and the second housing is arranged around the second through hole. 4. The coaxial connector device according to claim 3, wherein the first tubular portion has a second tubular portion that is inserted and fitted through the first through hole. In a direction in which the through hole penetrates each of the second housing and the shell portion, the first through hole provided in the shell portion is outside the second through hole provided in the second housing. 4. The coaxial connector device according to claim 3, wherein the coaxial connector device is arranged in

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