JP6847016B2 - Coaxial cable connector - Google Patents

Description

The present invention relates to a coaxial cable connector suitable for connecting a coaxial cable to a device, a circuit, another coaxial cable, or the like.

As a coaxial cable connector used by attaching to the end of a coaxial cable, a connector having a central conductor and a coaxial terminal having an outer conductor provided on the outer peripheral side of the central conductor via an insulating member is known.

In such a coaxial cable connector, the central conductor is provided with an internal conductor barrel for crimping and connecting the internal conductor (core wire) of the coaxial cable to the central conductor. Further, the outer conductor is provided with an outer conductor barrel for crimping and connecting the outer conductor (braid) of the coaxial cable to the outer conductor. In addition to these, some coaxial cables are provided with a coated barrel for crimping and fixing the outer conductor to the insulating coating of the coaxial cable.

In a general coaxial terminal, when the coaxial cable is connected and fixed to the coaxial terminal, the portion where the inner conductor and the center conductor are crimp-connected by the inner conductor barrel is arranged inside the outer conductor and surrounded by the outer conductor. Has been done. Therefore, the work of connecting and fixing a coaxial cable that has been subjected to end treatment to expose the inner conductor and the outer conductor to the coaxial terminal generally goes through the following steps. (1) First, the inner conductor and the center conductor are crimp-connected by the inner conductor barrel. (2) Next, the central conductor to which the inner conductor is connected is inserted inside the outer conductor. (3) Next, the outer conductor and the outer conductor are crimp-connected by the outer conductor barrel. Further, in the case of a coaxial terminal provided with a coated barrel on the outer conductor, the outer conductor is crimped and fixed to the insulating coating by the coated barrel in a step after the inner conductor and the center conductor are crimp-connected.

On the other hand, in recent years, crimp connection between the inner conductor and the center conductor by the inner conductor barrel, crimp connection between the outer conductor and the outer conductor by the outer conductor barrel, and crimp fixing by the coating barrel between the insulating coating and the outer conductor have been performed. Techniques that can be performed collectively (see, for example, Patent Document 1 below) are widespread. Hereinafter, this technology is referred to as a "batch crimping method". According to the batch crimping method, the man-hours for connecting and fixing the coaxial cable to the coaxial terminal can be reduced.

In order to perform the batch crimping method, the structure of the outer conductor of the coaxial terminal shall be a structure having an opening in which the crimping tool can be inserted into the portion where the inner conductor and the central conductor should be crimped and connected by the inner conductor barrel. .. As a result, the crimping tool can be brought into direct contact with each of the inner conductor barrel, the outer conductor barrel, and the coated barrel at the coaxial terminal from the outside, and each barrel can be crimped by each crimping tool. ..

The terminal crimping device for performing the batch crimping method is a first crimping tool that presses the inner conductor barrel to crimp and connect the inner conductor and the center conductor, and presses the outer conductor barrel to press the outer conductor and the outer conductor. A second crimping tool for crimping and connecting and a third crimping tool for crimping and fixing the insulating coating and the outer conductor by pressing the covering barrel are provided, and by operating these three crimping tools at the same time, the inner conductor and the inner conductor can be formed. Crimping connection with the center conductor, crimping connection between the outer conductor and the outer conductor, and crimping and fixing of the insulating coating and the outer conductor are performed collectively.

On the other hand, Patent Document 2 describes a shield connector compatible with high frequencies. This shielded connector includes an inner conductor terminal to which the signal conductor of the shielded cable is connected, a substantially tubular outer conductor terminal to which the shielded conductor of the shielded cable is connected, a dielectric, and a small diameter body having conductivity. ing. The inner conductor terminal is housed in the outer conductor terminal, and a dielectric is interposed between the inner conductor terminal and the outer conductor terminal. The small diameter body is attached to the dielectric in the outer conductor terminal, is electrically connected to the outer conductor terminal, and further covers the crimping portion of the inner conductor terminal. In Patent Document 2, the diameter of the outer conductor terminal can be electrically reduced so as to be closer to the crimping portion of the inner conductor terminal by the small diameter body, and the impedance in the vicinity of the crimping portion can be matched with other portions. It is stated that it can be done.

Japanese Unexamined Patent Publication No. 2011-3363 Japanese Unexamined Patent Publication No. 2003-163058

By the way, in the coaxial terminal premised on performing the batch crimping method, as described above, the outer conductor has an opening through which a crimping tool for crimping and connecting the inner conductor and the center conductor can be inserted inside the outer conductor. It is formed. As a result, the portion of the inner conductor barrel in which the inner conductor and the center conductor are crimp-connected is not completely surrounded by the outer conductor, and the portion of the inner conductor barrel is exposed through the opening. Therefore, it is difficult to match the characteristic impedance of the connector with the characteristic impedance of the coaxial cable, the characteristic impedance of the mating connector, and the like.

In this regard, the characteristic impedance of the connector can be adjusted by bringing the conductive member electrically connected to the outer conductor closer to the inner conductor barrel. However, since the inner conductor barrel is arranged in a narrow space inside the outer conductor, it is not easy to form a structure in which the conductive member is brought close to the inner conductor barrel.

Further, Patent Document 2 describes a configuration in which the crimped portion of the inner conductor terminal is covered with a dielectric and a small diameter body. In this configuration, the inner conductor barrel arranged in a narrow space inside the outer conductor It is difficult to realize a structure in which conductive members are brought close to each other.

The present invention has been made in view of the above-mentioned problems, for example, and the subject of the present invention is a structure in which the inner conductor connecting portion (for example, the inner conductor barrel portion) of the central conductor is not sufficiently surrounded by the outer conductor. However, it is an object of the present invention to provide a connector for a coaxial cable that can easily perform impedance matching.

In order to solve the above problems, the coaxial cable connector of the present invention includes a central conductor, an outer conductor provided on the outer peripheral side of the central conductor, and an insulating member provided between the central conductor and the outer conductor. It includes a coaxial terminal and a housing formed of an insulating material and accommodating the coaxial terminal. The central conductor is arranged on the front end side of the central conductor, and has a central contact portion that contacts the mating center conductor of the mating connector and a center conductor. The outer conductor is located on the rear end side of the outer conductor and includes an inner conductor connecting portion for connecting the inner conductor of the coaxial cable, and the outer conductor is arranged on the front end side of the outer conductor and is fitted with the mating outer conductor of the mating connector. The fitting portion, the outer conductor barrel portion which is arranged on the rear end side of the outer conductor and crimps and connects the outer conductor of the coaxial cable, and the outer fitting portion and the outer conductor barrel portion of the outer conductor are arranged and inside. A pair of inner conductor arranging portions are provided on the inner conductor arranging portion, and the inside of the inner conductor arranging portion is opened to the outside on one side and the other side in the radial direction of the coaxial terminal in the inner conductor arranging portion. A coaxial cable connector in which openings are formed, respectively, which are made of metal and are electrically connected to an outer conductor or an outer conductor, and from one of the pair of openings to the inner conductor arrangement portion. It is provided with a conductive member that enters the inside and approaches the inner conductor connecting portion, and a dielectric piece provided between the conductive member and the inner conductor connecting portion, and the conductive member has a conductive plate portion that covers the one opening. The conductive plate portion has a convex portion that protrudes into the inside of the internal conductor arrangement portion through the one opening, and the protruding end portion of the convex portion approaches the internal conductor connecting portion to form a dielectric piece. Is provided at the protruding end of the convex portion .

In the coaxial cable connector of the present invention, the conductive member is electrically connected to the outer conductor or the outer conductor, enters the inner conductor arrangement portion through the one opening, and approaches the inner conductor connection portion. By bringing the conductive member electrically connected to the outer conductor closer to the inner conductor connecting portion, the impedance of the peripheral portion of the inner conductor connecting portion can be easily adjusted. As a result, the characteristic impedance of the coaxial cable connector can be easily matched with the characteristic impedance of the coaxial cable, the characteristic impedance of the mating connector, or the like.

Further, when the conductive member approaches the inner conductor connecting portion, there is a concern that the conductive member and the inner conductor connecting portion come into contact with each other. However, in the coaxial cable connector of the present invention, a dielectric piece is provided between the conductive member and the internal conductor connecting portion. With this dielectric piece, it is possible to prevent the conductive member from coming into contact with the internal conductor connecting portion. Further, the impedance of the peripheral portion of the internal conductor connection portion can be adjusted by the dielectric piece.

Further, in the coaxial cable connector of the present invention described above, it is preferable that the dielectric piece is formed into a conductive member.

Further, in the coaxial cable connector of the present invention described above, the inner conductor arrangement portion has a pair of intermediate wall portions connecting the outer fitting portion and the outer conductor barrel portion on both sides of the inner conductor connection portion. The conductive member preferably has a pair of contact portions that come into contact with the outer surfaces of the pair of intermediate wall portions.

Further, in the coaxial cable connector of the present invention described above, one of the openings is formed below the inner conductor arrangement portion, and the pair of intermediate wall portions are arranged on the left side and the right side of the inner conductor connection portion, respectively, and the conductive plate. part covers the opening of the one from below, conductive member, rising from the left portion of the conductive Denban portion is disposed between the left wall of the left of the intermediate wall portion and the housing, the left of the intermediate wall portion The left plate portion is provided with a contact portion that contacts the outer surface of the cable, and the left plate portion is formed on the left plate portion at a position on the front side or the rear side of the contact portion provided on the left plate portion. The left side support that supports between the and the left side wall of the housing, and the right side intermediate wall that rises from the right side of the conductive plate and is placed between the right side intermediate wall and the right side wall of the housing. The right plate part is provided with a contact part that contacts the outer surface of the part, and the right plate part is formed on the right plate part at a position on the front side or the rear side of the contact part provided on the right plate part. It is preferable to provide a right-side support portion that supports between the portion and the right-side wall portion of the housing.

Further, in the coaxial cable connector of the present invention described above, each intermediate wall portion has a locking piece protruding downward from the intermediate wall portion, and a pair of locking pieces are provided on the left and right portions of the conductive plate portion. It is preferable that a notch for locking the piece is formed.

Further, in the coaxial cable connector of the present invention described above, the conductive member has an external connection portion for electrically connecting to the shield shell provided on the mating connector, and the housing has an external connection portion outside the housing. It is preferable that a connection hole is provided so as to face the.

Further, in the coaxial cable connector of the present invention described above, the conductive member has a connection barrel portion for crimping and connecting the conductive member to the outer conductor or the outer conductor, and the connection barrel portion includes the inner conductor arrangement portion and the outside. It is preferable that it is connected to the conductor barrel portion.

Further, in the coaxial cable connector of the present invention described above, it is preferable that the dielectric piece is formed in a plate shape extending in the front-rear direction and forms a microstrip line structure together with the inner conductor connecting portion and the outer conductor barrel portion.

According to the present invention, impedance matching can be easily performed in a connector having a structure in which the inner conductor connection portion of the central conductor is not sufficiently surrounded by the outer conductor.

It is a perspective view which shows the appearance of the coaxial cable connector of 1st Embodiment of this invention. It is an exploded perspective view of the connector for the coaxial cable of 1st Embodiment of this invention. FIG. 5 is a cross-sectional view showing a state in which the coaxial cable connector of the first embodiment of the present invention is viewed from the directions of arrows III-III in FIG. It is sectional drawing which shows the state which the coaxial terminal and the conductive member in the coaxial cable connector of 1st Embodiment of this invention are seen from the direction of arrow IV-IV in FIG. It is sectional drawing which shows the center conductor, the outer conductor and the insulating member in the coaxial terminal of the coaxial cable connector of 1st Embodiment of this invention. It is an external view which shows the conductive member in the coaxial cable connector of 1st Embodiment of this invention. FIG. 5 is a cross-sectional view showing a state in which the coaxial terminal and the conductive member of the coaxial cable connector of the first embodiment of the present invention are viewed from the direction of arrow VII-VII in FIG. It is explanatory drawing which shows the attachment to the coaxial terminal of the conductive member in the coaxial cable connector of 1st Embodiment of this invention. It is explanatory drawing which shows the coaxial terminal and the conductive member in the coaxial cable connector of 1st Embodiment of this invention. It is a circuit diagram which shows the electric path of the outer conductor of the coaxial cable connector of 1st Embodiment of this invention, a conductive member, the outer conductor of a coaxial cable, the outer conductor of a mating connector, a shield shell, and the ground circuit of a substrate. It is an exploded perspective view which shows the connector for the coaxial cable of the 2nd Embodiment of this invention. It is an external view which shows the connector for the coaxial cable of the 3rd Embodiment of this invention. It is an exploded perspective view which shows the connector for the coaxial cable of the 3rd Embodiment of this invention. It is sectional drawing which shows the coaxial terminal of the coaxial cable connector of the 3rd Embodiment of this invention. It is a perspective view which shows the mating connector corresponding to the coaxial cable connector of the 1st or 2nd Embodiment of this invention. It is sectional drawing which shows the mating connector in FIG. It is a perspective view which shows the shield shell in the mating connector in FIG.

(First Embodiment)
FIG. 1 shows a coaxial cable connector 1 according to a first embodiment of the present invention. FIG. 2 shows a state in which the connector 1 is disassembled. In each of the following embodiments, the direction in which the connector 1 is inserted into the insertion port 129 of the mating connector 121 (see FIG. 15) is referred to as the "connector insertion direction", and the opposite direction is referred to as the "connector removal direction". In FIG. 1 and the like, the arrow In indicates the connector insertion direction, and the arrow Out indicates the connector removal direction. Further, in the connector 1, the front side in the connector insertion direction is the front side, the front side is the rear side, and the upper, lower, left, and right follow the arrows shown in the lower right of FIGS. 1 to 9. Arrows U, D, L, and R in FIGS. 1 to 9 indicate an upward direction, a downward direction, a left direction, and a right direction, respectively. Note that the front, back, top, bottom, left, and right are provided only for convenience of explanation.

In FIG. 1, the connector 1 is a plug connector used by being attached to the end of the coaxial cable 5. As shown in FIG. 2, the connector 1 includes a coaxial terminal 11, a conductive member 31, a housing 43, and a retainer 61.

FIG. 3 shows a cross section of the connector 1 as viewed from the directions of arrows III-III in FIG. FIG. 4 shows a cross section of the coaxial terminal 11 and the conductive member 31 as viewed from the direction of arrow IV-IV in FIG. FIG. 5 shows a cross section of the central conductor 12, the outer conductor 16, and the insulating member 29 at the coaxial terminal 11.

As shown in FIG. 3, the coaxial terminal 11 includes a central conductor 12, an outer conductor 16 provided on the outer peripheral side of the central conductor 12, and an insulating member 29 provided between the central conductor 12 and the outer conductor 16. ing. The central conductor 12 and the outer conductor 16 are formed of a conductive material such as metal, and the insulating member 29 is formed of an insulating material such as resin.

As shown in FIG. 4, the central conductor 12 has a central contact portion 13 and an internal conductor barrel portion 14 as an internal conductor connecting portion. The central contact portion 13 is a portion in which the tip portion thereof is fitted with the central conductor 123 of the coaxial terminal 122 of the mating connector 121 in an elastic contact state. The central contact portion 13 is arranged on the front end side of the central conductor 12. In the present embodiment, the central contact portion 13 is a female type and is formed in a cylindrical shape. The inner conductor barrel portion 14 is a portion for crimping and connecting the inner conductor 6 of the coaxial cable 5. The inner conductor barrel portion 14 is arranged on the rear end side of the central conductor 12. The shape of the inner conductor barrel portion 14 is substantially U-shaped before crimping the inner conductor 6, but is compressed into a substantially plate shape after crimping.

The outer conductor 16 has an outer fitting portion 17, an outer conductor barrel portion 21, a coated barrel portion 22, and an inner conductor barrel arranging portion 23 as an inner conductor arranging portion. The outer fitting portion 17 is a portion that is fitted with the outer conductor 124 of the coaxial terminal 122 of the mating connector 121. The outer fitting portion 17 is arranged on the front end side of the outer conductor 16 and is located on the outer peripheral side of the center contact portion 13. The outer conductor barrel portion 21 is a portion for crimping and connecting the outer conductor 7 of the coaxial cable 5. The outer conductor barrel portion 21 is arranged at the rear portion of the outer conductor 16. The coated barrel portion 22 is a portion for crimping and fixing the outer conductor 16 to the insulating coating 9 of the coaxial cable 5. The coated barrel portion 22 is arranged behind the outer conductor barrel portion 21 in the outer conductor 16, that is, at the rear end portion of the outer conductor 16.

The inner conductor barrel arranging portion 23 is arranged between the outer fitting portion 17 and the outer conductor barrel portion 21. The inner conductor barrel portion 14 of the central conductor 12 is arranged inside the inner conductor barrel arrangement portion 23. The inner conductor barrel arranging portion 23 has a pair of left and right intermediate wall portions 24 connecting between the outer fitting portion 17 and the outer conductor barrel portion 21, and has a substantially rectangular box shape. As shown in FIG. 4, the pair of intermediate wall portions 24 are arranged on the left side and the right side of the inner conductor barrel portion 14, respectively. Further, in the inner conductor barrel arrangement portion 23, a pair of openings 25 for opening the inside of the inner conductor barrel arrangement portion 23 to the outside are formed on one side and the other side in the radial direction of the coaxial terminal 11. Specifically, as shown in FIG. 3, the pair of openings 25 are formed in the upper portion and the lower portion of the inner conductor barrel arrangement portion 23, respectively. Further, the pair of openings 25 forms a space in the inner conductor barrel arranging portion 23 that penetrates the inner conductor barrel arranging portion 23 in the vertical direction (opposing direction). In the present embodiment, these openings 25 are jig and tool inlets for inserting a tool for crimping and connecting the inner conductor 6 into the inside of the inner conductor barrel arranging portion 23. The left side and the right side of the inner conductor barrel portion 14 are covered by the intermediate wall portion 24 of the outer conductor 16, respectively, but since the openings 25 are formed in the upper part and the lower part of the inner conductor barrel arrangement portion 23, respectively, the inside The upper and lower sides of the conductor barrel portion 14 are not covered by the outer conductor 16.

Further, as shown in FIGS. 2 and 5, a locking piece 26 projecting downward from the intermediate wall portion 24 is formed at the rear portion of each intermediate wall portion 24. The pair of left and right locking pieces 26 are respectively locked to a pair of notches 41 (see FIG. 6) formed in the rear portion of the conductive plate portion 32.

Further, as shown in FIG. 5, in the outer conductor 16, a recessed portion 27 is formed between the inner conductor barrel arranging portion 23 and the outer conductor barrel portion 21. That is, in the outer conductor 16, the outer surface of the portion between the inner conductor barrel arranging portion 23 and the outer conductor barrel portion 21 is curved so as to rise upward, and as a result, the inner surface facing downward of the portion is recessed. I'm out. This recessed portion is the recessed portion 27. When the unit in which the central conductor 12 and the insulating member 29 are connected is incorporated into the outer conductor 16 at the time of manufacturing the connector 1, the axial position of the unit and the outer conductor 16 are utilized by utilizing the space formed by the recessed portion 27. The unit can be incorporated into the outer conductor 16 in a state where the axis positions are aligned with each other. This facilitates the work of incorporating the unit into the outer conductor 16.

FIG. 6 shows the conductive member 31. FIG. 7 shows a cross section of the conductive member 31 as seen from the direction of arrow VII-VII in FIG. 8 and 9 show the attachment of the conductive member 31 to the coaxial terminal 11. The conductive member 31 is a member having a function of adjusting the impedance of the peripheral portion of the internal conductor barrel portion 14 and a function of removing high frequency noise in cooperation with the shield shell 131 of the mating connector 121.

As can be seen from FIGS. 3, 4, 8, 9, 9 and the like, the conductive member 31 is attached to the inner conductor barrel arranging portion 23 of the outer conductor 16. As shown in FIGS. 6 and 7, the conductive member 31 includes a conductive plate portion 32 extending in the front-rear direction and the left-right direction, a dielectric piece 34 provided in a part of the conductive plate portion 32, and the conductive plate portion 32. It has a left plate portion 35L rising from the left portion, a right plate portion 35R rising from the right portion of the conductive plate portion 32, and a connection barrel portion 40 connected to the rear portion of the conductive plate portion 32. The portion of the conductive member 31 other than the dielectric piece 34 is formed of a conductive material. Specifically, the portion is formed by, for example, pressing and bending a metal plate material.

The conductive plate portion 32 is arranged below the inner conductor barrel arranging portion 23 in the outer conductor 16, and covers the opening 25 formed in the lower part of the inner conductor barrel arranging portion 23 from below. As shown in FIG. 6, when the conductive plate portion 32 is viewed from above, a convex portion 33 is formed in the central portion of the conductive plate portion 32 so as to project upward in a plate surface shape. As shown in FIG. 7, the convex portion 33 enters the inner conductor barrel arranging portion 23 through the opening 25 formed in the lower part of the inner conductor barrel arranging portion 23, and the upper end portion (projection) of the convex portion 33. The end) is close to the inner conductor barrel 14.

The dielectric piece 34 is formed of a dielectric material such as resin. The dielectric piece 34 is provided between the conductive member 31 and the internal conductor barrel portion 14. Specifically, the dielectric piece 34 is arranged in the middle in the left-right direction of the upper end portion of the convex portion 33. Further, the dielectric piece 34 is integrally formed with the conductive member 31. Specifically, the dielectric piece 34 is formed in a plate shape extending in the front-rear direction at the upper end of the convex portion 33 of the conductive plate portion 32, and the inner conductor barrel portion 14, the outer conductor barrel portion 21 and the microstrip line. Form a structure. Thereby, impedance matching can be easily achieved.

The left plate portion 35L extends upward from the left end portion of the conductive plate portion 32 and is arranged between the intermediate wall portion 24 on the left side of the internal conductor barrel arrangement portion 23 and the left wall 48L of the housing 43. The right plate portion 35R extends upward from the right end portion of the conductive plate portion 32 and is arranged between the intermediate wall portion 24 on the right side of the internal conductor barrel arrangement portion 23 and the right wall 48R of the housing 43.

Further, on the upper end side of each of the left plate portion 35L and the right plate portion 35R, a fixing portion 36 for fixing the conductive member 31 to the internal conductor barrel arranging portion 23 is provided. As shown in FIG. 7, by bending the fixing portion 36 of the left plate portion 35L to the right, the left intermediate wall portion 24 is sandwiched between the left portion of the conductive plate portion 32 and the fixing portion 36. Similarly, by bending the fixing portion 36 of the right plate portion 35R to the left, the right intermediate wall portion 24 is sandwiched between the right portion of the conductive plate portion 32 and the fixing portion 36. As a result, the conductive member 31 is fixed to the internal conductor barrel arranging portion 23. Note that FIG. 6 shows a state in which each fixing portion 36 is not bent.

Further, the left plate portion 35L is provided with a contact piece 37 that contacts the outer surface of the left intermediate wall portion 24, and the right plate portion 35R is provided with a contact piece 37 that contacts the outer surface of the right intermediate wall portion 24. Has been done. The conductive member 31 is electrically connected to the outer conductor 16 by the pair of contact pieces 37. The contact piece 37 on the left side protrudes to the right from the left plate portion 35L, and in an elastically deformed state, contacts the outer surface of the intermediate wall portion 24 on the left side and presses the outer surface. Similarly, the contact piece 37 on the right side protrudes to the left from the right plate portion 35R, contacts the outer surface of the intermediate wall portion 24 on the right side in an elastically deformed state, and presses the outer surface.

Further, as shown in FIG. 6, the left plate portion 35L is formed with a pair of left side support portions 38L that support the left plate portion 35L between the left intermediate wall portion 24 and the left wall 48L of the housing 43. ing. Of the pair of left side support portions 38L, one left side support portion 38L is arranged at the front end portion of the left plate portion 35L. The left side support portion 38L supports the left plate portion 35L between the left intermediate wall portion 24 and the left wall 48L of the housing 43 at a position in front of the contact piece 37 provided on the left plate portion 35L. Of the pair of left side support portions 38L, the other left side support portion 38L is arranged at the rear end portion of the left plate portion 35L. The left side support portion 38L supports the left plate portion 35L between the left intermediate wall portion 24 and the left wall 48L of the housing 43 at a position rearward from the contact piece 37 provided on the left plate portion 35L. .. As shown in FIG. 7, the separation distance between the left intermediate wall portion 24 and the left wall portion 48L of the housing 43 is larger than the thickness of the left plate portion 35L. In the present embodiment, the left surface of the left plate portion 35L is in contact with the right surface of the left wall 48L of the housing 43. Each of the left side support portions 38L protrudes to the right from the left plate portion 35L, and the protruding end side of each left side support portion 38L is in contact with the left surface of the left side intermediate wall portion 24.

Similarly, the right plate portion 35R is also formed with a pair of right side support portions 38R that support the right plate portion 35R between the right intermediate wall portion 24 and the right wall 48R of the housing 43. Of the pair of right side support portions 38R, one right side support portion 38R is arranged at the front end portion of the right plate portion 35R. The right side support portion 38R supports the right plate portion 35R between the right intermediate wall portion 24 and the right wall 48R of the housing 43 at a position in front of the contact piece 37 provided on the right plate portion 35R. Of the pair of right side support portions 38R, the other right side support portion 38R is arranged at the rear end portion of the right plate portion 35R. The right side support portion 38R supports the right plate portion 35R between the right intermediate wall portion 24 and the right wall 48R of the housing 43 at a position rearward from the contact piece 37 provided on the right plate portion 35R. .. The separation distance between the right intermediate wall portion 24 and the right wall 48R of the housing 43 is larger than the thickness of the right plate portion 35R. In the present embodiment, the right surface of the right plate portion 35R is in contact with the left surface of the right wall 48R of the housing 43. Then, each right side support portion 38R protrudes to the left from the right plate portion 35R, and the protruding end side of each right side support portion 38R is in contact with the right surface of the right intermediate wall portion 24.

Further, the left plate portion 35L and the right plate portion 35R each have a pair of external connection portions 39 for electrically connecting the shield shell 131 (see FIG. 17) provided on the mating connector 121 and the conductive member 31. It is provided. As shown in FIG. 6, the left plate portion 35L is formed in a plate shape extending in the front-rear direction and the up-down direction, and the left surface of the left plate portion 35L is a flat surface. The left surface of the left plate portion 35L is one of the external connection portions 39. Similarly, the right plate portion 35R is formed in a plate shape extending in the front-rear direction and the up-down direction, and the right surface of the right plate portion 35R is a flat surface. The right side of the right plate portion 35R is the other external connection portion 39. As shown in FIG. 1 and the like, connection holes 49 are formed in the left wall 48L and the right wall 48R in the housing 43, respectively, and the left and right external connection portions 39 face the outside of the housing 43 through these connection holes 49. I'm out. When the connector 1 is inserted into the insertion port 129 of the mating connector 121, the pair of left and right shell connecting pieces 132 provided in the shield shell 131 of the mating connector 121 come into contact with the external connecting portion 39 via the connecting holes 49, respectively.

As shown in FIGS. 8 and 9, the connection barrel portion 40 is a portion where the conductive member 31 is crimp-connected to the outer conductor 16. As shown in FIG. 6, a part of the conductive plate portion 32 extends rearward, and a connecting barrel portion 40 is formed on the rear end side of the portion. As shown in FIG. 3, the connecting barrel portion 40 is crimp-connected between the inner conductor barrel arranging portion 23 and the outer conductor barrel portion 21 in the outer conductor 16. Specifically, the connection barrel portion 40 is firmly connected to the raised outer surface corresponding to the recessed portion 27 of the outer conductor 16 by caulking crimping. The connecting barrel portion 40 fixes the conductive member 31 to the outer conductor 16, and the conductive member 31 and the outer conductor 16 are electrically connected at a position away from the inner conductor barrel portion 14.

Further, as shown in FIG. 6, a pair of locking pieces 26 formed on the intermediate wall portion 24 of the inner conductor barrel arranging portion 23 of the outer conductor 16 are engaged in the left rear portion and the right rear portion of the conductive plate portion 32, respectively. A pair of notches 41 to stop are formed respectively. As can be seen from FIGS. 8 and 9, each locking piece 26 enters each notch 41 and is locked.

The housing 43 shown in FIG. 1 is formed of an insulating material such as resin into a tubular shape having a substantially quadrangular cross section. A connector fitting portion 44 to be fitted in the housing 128 of the mating connector 121 is formed in the front portion of the housing 43. The outer peripheral portion of the connector fitting portion 44 is formed with irregularities that match the uneven shape of the erroneous insertion prevention portion 130 provided at the insertion port 129 of the mating connector 121. A grip portion 45 is formed on the rear portion of the housing 43 for the user to grip the connector 1 when the connector 1 is inserted into and removed from the mating connector 121.

As shown in FIG. 3, the coaxial terminal 11 is housed in the housing 43. Further, a terminal insertion port 46 into which the tip end side of the coaxial terminal 122 (see FIG. 15) of the mating connector 121 is inserted is formed at the front end portion of the housing 43. The central contact portion 13 of the central conductor 12 of the coaxial terminal 11 and the outer fitting portion 17 of the outer conductor 16 are arranged at the front end portion inside the housing 43, and face the outside of the housing 43 from the terminal insertion port 46. Further, at the rear end of the housing 43, an insertion port 47 for incorporating the coaxial terminal 11 into the housing 43 or passing the coaxial cable 5 attached to the coaxial terminal 11 incorporated in the housing 43 is formed. There is.

Further, as shown in FIG. 1, a connection hole 49 is formed in the right wall 48R of the housing 43 so that the external connection portion 39 on the right side of the conductive member 31 faces the outside of the housing 43. Similarly, the left wall 48L of the housing 43 is formed with a connection hole 49 for allowing the external connection portion 39 on the left side of the conductive member 31 to face the outside of the housing 43.

Further, a lance 50 for supporting the coaxial terminal 11 on the housing 43 is provided on the upper part of the inside of the housing 43. The lance 50 is arranged in the center of the upper part of the housing 43 in the left-right direction, extends in the front-rear direction as shown in FIG. 3, and has a locking projection 50A at the lower part of the front end and in contact with the upper rear end of the outer fitting portion 17. Is formed.

Here, in the connector 1, the position of the contact spring portion 18 provided on the outer fitting portion 17 of the outer conductor 16 of the coaxial terminal 11 is as follows in consideration of the position of the locking projection portion 50A of the lance 50. It is set. That is, as shown in FIGS. 2 and 5, three contact spring portions 18 for contacting the outer conductor 124 of the coaxial terminal 122 of the mating connector 121 surround the outer fitting portion 17 of the outer conductor 16. It is formed at intervals of 120 degrees in the direction. These three contact spring portions 18 are arranged so as to avoid the center in the left-right direction of the upper portion of the outer fitting portion 17. Specifically, the metal plate material forming the outer fitting portion 17 is bent into a cylindrical shape so that the three contact spring portions 18 are arranged so as to avoid the center of the upper portion of the outer fitting portion 17 in the left-right direction. One is about twice as long as the other, and the position of the mating surface 19 is set so as to deviate from the center of the upper surface. By arranging the three contact spring portions 18 so as to avoid the center of the upper portion of the outer fitting portion 17 in the left-right direction, the contact spring portions 18 are lanced 50 when the coaxial terminal 11 is incorporated into the housing 43 from the insertion port 47. It is possible to prevent the contact spring portion 18 from being deformed by hitting the locking projection portion 50A of the above.

Further, as shown in FIG. 3, a retainer accommodating portion 51 for accommodating the retainer 61 and a retainer locking hole 52 for locking the retainer 61 are provided on the lower rear side of the housing 43.

Here, as shown in FIG. 2, the retainer 61 has a mounting portion 62 that is inserted into the retainer accommodating portion 51 and mounted in the housing 43, and a coaxial terminal with the mounting portion 62 inserted into the retainer accommodating portion 51. A pair of regulating portions 63 that regulate the locking piece 26 of 11 to prevent the coaxial terminal 11 from coming off, and a cable that supports the coaxial cable 5 behind the housing 43 with the mounting portion 62 inserted into the retainer accommodating portion 51. A support portion 64 is provided. Further, a protruding piece 65 (see FIG. 3) that is locked to the retainer locking hole 52 is formed on the lower surface of the rear portion of the mounting portion 62. Further, the upper surface of the cable support portion 64 of the retainer 61 is curved so as to match the circular outer shape of the coaxial cable 5. The curved upper surface of the cable support 64 can prevent the coaxial cable 5 from suddenly bending significantly to the left or right immediately after the housing 43. As a result, it is possible to prevent a large force from being applied to the outer conductor 16 due to such bending of the coaxial cable 5.

Further, a lock mechanism 53 for fixing the connector 1 to the mating connector 121 is provided on the upper portion of the housing 43. The lock mechanism 53 locks on the beam portion 54 extending in the front-rear direction and having both ends supported on the upper portion of the housing 43, the lock protrusion 55 protruding upward from the upper surface of the beam portion 54, and the upper surface of the beam portion 54. It has an unlocking portion 56 formed behind the protruding portion 55. The lock protrusion 55 can be displaced in the vertical direction by elastic deformation of the beam 54. When the connector 1 is inserted into the mating connector 121, the beam portion 54 is inserted into the beam accommodating portion 135 (see FIG. 16) of the mating connector 121, and the lock protrusion 55 is locked in the lock hole 136 of the mating connector 121. By pushing the lock release portion 56 downward, the lock protrusion 55 can be removed from the lock hole 136. Further, a rib 57 is formed on the upper surface of the rear portion of the beam portion 54. The rib 57 can increase the elastic force of the beam portion 54, and can increase the certainty of fitting and fixing of the connector 1 and the mating connector 121 by the lock mechanism 53.

15 to 17 show the mating connector 121. Specifically, FIG. 15 shows the appearance of the mating connector 121, FIG. 16 shows the cross section of the left side portion of the mating connector 121 cut at the center in the left-right direction and divided into left and right, and FIG. 17 shows the shield shell 131 of the mating connector 121. Shown. In the mating connector 121, the front side in the connector insertion direction is the front side, the front side is the rear side, and the upper, lower, left, and right follow the arrows shown in the lower right of FIGS. 15 to 17. Arrows U, D, L, and R in FIGS. 15 to 17 indicate an upward direction, a downward direction, a left direction, and a right direction, respectively. Note that the front, back, top, bottom, left, and right are provided only for convenience of explanation.

As shown in FIGS. 15 and 16, the mating connector 121 is a receptacle connector used by being attached to a substrate, and includes a coaxial terminal 122, a housing 128, and a shield shell 131.

The coaxial terminal 122 includes a central conductor 123 as a mating center conductor, an outer conductor 124 as a mating outer conductor provided on the outer peripheral side of the center conductor 123, and an insulating member provided between the center conductor 123 and the outer conductor 124. Has 125. In this embodiment, the central conductor 123 is male. Further, the central conductor 123 has a circuit connection portion 126 for connecting the central conductor 123 to, for example, a signal circuit of a substrate. Further, the outer conductor 124 has a circuit connection portion 127 for connecting the outer conductor 124 to the ground circuit of the substrate.

The housing 128 is formed of an insulating material such as resin, and has a substantially quadrangular cross section. A coaxial terminal 122 is housed in the rear portion of the housing 128, and an insertion port 129 is formed at the front end of the housing 128. Further, the insertion port 129 is formed with an erroneous insertion prevention portion 130 having a predetermined uneven shape.

The shield shell 131 is formed of a conductive material such as metal and is provided on the outer peripheral side of the housing 128. A pair of left and right shell connection pieces 132 are provided at the front end of the shield shell 131. The shell connection piece 132 projects inward of the housing 128 through insertion holes 137 formed in the left wall and the right wall of the housing 128, respectively. Further, the shield shell 131 is provided with a circuit connection portion 133 for connecting the shield shell 131 to the ground circuit of the substrate.

When the connector 1 and the mating connector 121 are used, the coaxial cable 5 is attached to the connector 1 as shown in FIG. Further, the mating connector 121 is attached to the board, and the central conductor 123 of the mating connector 121 is connected to the signal circuit of the board via the circuit connection portion 126. Further, the outer conductor 124 of the mating connector 121 is connected to the ground circuit of the substrate via the circuit connection portion 127. Furthermore, the shield shell 131 of the mating connector 121 is connected to the ground circuit of the substrate via the circuit connection portion 133.

When the connector fitting portion 44 of the connector 1 is inserted into the insertion port 129 of the mating connector 121 and the connector fitting portion 44 is pushed all the way into the housing 128 of the mating connector 121, the lock protrusion 55 of the lock mechanism 53 of the connector 1 is released. It enters the lock hole 136 of the mating connector 121, and the connector 1 is fixed to the mating connector 121. In this state, the central conductor 12 of the coaxial terminal 11 of the connector 1 and the central conductor 123 of the coaxial terminal 122 of the mating connector 121 are fitted to each other, and both the central conductors 12 and 123 are electrically connected to each other. As a result, the inner conductor 6 of the coaxial cable 5 is electrically connected to the signal circuit of the substrate. Further, the outer conductor 16 of the coaxial terminal 11 of the connector 1 and the outer conductor 124 of the coaxial terminal 122 of the mating connector 121 are fitted to each other, and both outer conductors 16 and 124 are electrically connected to each other. As a result, the outer conductor 7 of the coaxial cable 5 is connected to the ground circuit of the substrate.

Further, in the state where the connector 1 is fixed to the mating connector 121 in this way, the pair of shell connecting pieces 132 of the mating connector 121 come into contact with the pair of external connecting portions 39 of the connector 1, respectively. As a result, the conductive member 31 of the connector 1 is connected to the ground circuit of the substrate via the shield shell 131. Then, at the coaxial terminal 11 of the connector 1, all of the central conductor 12 enters the inside of the shield shell 131, and at the outer conductor 16 of the coaxial terminal 11 of the connector 1, the entire outer fitting portion 17 and the entire inner conductor barrel arranging portion 23. Enters the inside of the shield shell 131. The portion of the coaxial terminal 11 of the connector 1 that is inside the shield shell 131 is shielded by the shield shell 131. As a result, the radiation of noise from the central conductors 12, 123, etc. or the mixing of noise into the central conductors 12, 123, etc. is suppressed.

As described above, in the connector 1 of the embodiment of the present invention, the conductive member 31 is electrically connected to the outer conductor 16 via the pair of contact pieces 37, and the convex portion formed on the conductive plate portion 32. 33 enters the inner conductor barrel arrangement portion 23 through the opening 25 and approaches the inner conductor barrel portion 14. Thereby, the impedance of the peripheral portion of the inner conductor barrel portion 14 can be easily adjusted. Therefore, the characteristic impedance of the connector 1 can be easily matched with the characteristic impedance of the coaxial cable 5 or the characteristic impedance of the mating connector 121.

Further, by forming the convex portion 33 on the conductive plate portion 32 and allowing the protruding end side of the convex portion 33 to enter the inside of the inner conductor barrel arranging portion 23 from the opening 25, the inner conductor barrel arranging portion 23 The convex portion 33 of the conductive member 31 can be brought close to the internal conductor barrel portion 14 arranged in the narrow space inside.

Further, in the connector 1 of the embodiment of the present invention, the dielectric piece 34 is provided between the convex portion 33 of the conductive plate portion 32 and the internal conductor barrel portion 14. The dielectric piece 34 can prevent the inner conductor barrel portion 14 from coming into contact with the convex portion 33 of the conductive plate portion 32. Further, the impedance of the peripheral portion of the inner conductor barrel portion 14 can be adjusted by the dielectric piece 34.

Further, the dielectric piece 34 is formed on the convex portion 33 of the conductive plate portion 32. As a result, the dielectric piece 34 and the conductive member 31 can be integrally formed, and these can be made into a single component. As a result, the number of parts of the connector 1 can be reduced, and the man-hours for assembling the connector 1 can be reduced.

Further, in the connector 1 of the embodiment of the present invention, the conductive member 31 has a pair of contact pieces 37 that come into contact with the pair of intermediate wall portions 24 of the internal conductor barrel arrangement portion 23. As a result, the conductive member 31 and the outer conductor 16 can be easily electrically connected.

Further, in the connector 1 of the embodiment of the present invention, the conductive member 31 has the left plate portion 35L at the front and rear positions of the contact piece 37 provided on the left plate portion 35L, and the left intermediate wall portion 24 and the housing 43. The right plate portion 35R is placed between the right intermediate wall portion 24 and the housing at positions on the front side and the rear side of the contact piece 37 provided on the right plate portion 35R and the pair of left side support portions that support the left wall portion 48L. It has a pair of right side support portions 38R that support it with the right wall 48R of 43. The conductive member 31 and the internal conductor barrel arrangement portion 23 are supported by the pair of left side support portions 38L and the pair of right side support portions 38R between the left wall 48L and the right wall 48R of the housing 43 at four locations, front, rear, left and right. .. As a result, it is possible to prevent the conductive member 31 and the internal conductor barrel arranging portion 23 from moving in the housing 43. That is, when the coaxial cable 5 attached to the connector 1 is greatly bent to the left or right immediately after the connector 1, an external force that tries to bend the rear portion of the outer conductor 16 to the left or right is applied to the outer conductor 16. It works. Even if such an external force acts on the outer conductor 16, the conductive member 31 and the inner conductor barrel arranging portion 23 are supported between the left wall 48L and the right wall 48R of the housing 43 by four places, front, back, left and right. , The conductive member 31 and the internal conductor barrel arranging portion 23 can be prevented from moving between the left wall 48L and the right wall 48R of the housing 43.

When the conductive member 31 and the inner conductor barrel arranging portion 23 move between the left wall 48L and the right wall 48R of the housing 43, the position of the conductive member 31 with respect to the inner conductor barrel arranging portion 23 changes, and the left plate of the conductive member 31 changes. The distance between the portion 35L and the intermediate wall portion 24 on the left side of the internal conductor barrel arrangement portion 23, or the distance between the right plate portion 35R of the conductive member 31 and the intermediate wall portion 24 on the right side of the internal conductor barrel arrangement portion 23 changes. There is. When such a change occurs, the contact piece 37 provided on the left plate portion 35L or the right plate portion 35R may be separated from the facing intermediate wall portion 24 or pressed against the intermediate wall portion 24. As a result, the contact piece 37 may have poor contact or the contact piece 37 may be damaged. In the connector 1, the pair of left side support portions 38L and the pair of right side support portions 38R suppress the movement of the conductive member 31 and the internal conductor barrel arrangement portion 23, thereby causing such poor contact of the contact piece 37 and the contact piece 37. Damage can be prevented. Further, by arranging the contact pieces 37 between the front and rear left side support portions 38L and between the front and rear right side support portions 38R, the amount of movement of each contact piece 37 by the movement of the conductive member 31 and the internal conductor barrel arrangement portion 23 is reduced. can do. This makes it possible to enhance the effect of preventing poor contact of the contact piece 37 and damage of the contact piece 37.

Further, in the connector 1 of the embodiment of the present invention, the pair of locking pieces 26 formed on the pair of intermediate wall portions 24 of the internal conductor barrel arranging portion 23 are located at the rear portion of the conductive plate portion 32 of the conductive member 31. It is locked to a pair of notches 41 formed. As a result, the displacement of the conductive member 31 with respect to the internal conductor barrel arrangement portion 23 in the front-rear direction can be suppressed.

Further, in the connector 1 of the embodiment of the present invention, connection holes 49 are formed in each of the left wall 48L and the right wall 48R of the housing 43, and a pair of external connection portions 39 provided in the conductive member 31 are connected holes 49. It faces the outside of the housing 43 via. As a result, when the connector 1 is inserted into the mating connector 121, each external connection portion 39 and each shell connecting piece 132 of the shield shell 131 of the mating connector 121 are brought into contact with each other, and the conductive member 31 is brought into contact with the shield shell 131 of the mating connector 121. Can be electrically connected to. Here, FIG. 10 shows an electric circuit formed from the outer conductor 7 of the coaxial cable 5, the outer conductor 16 of the connector 1, the conductive member 31, the outer conductor 124 of the mating connector 121, the shield shell 131, and the ground circuit of the substrate. ing. As shown in FIG. 10, by electrically connecting the conductive member 31 to the shield shell 131 via each external connection portion 39, the outer conductor 16 of the connector 1 is connected to the substrate via the outer conductor 124 of the mating connector 121. In addition to the first electrical path (abc-d) connected to the ground circuit, the outer conductor 16 of the connector 1 connects each contact piece 37 of the conductive member 31, each external connection portion 39, and the shield shell 131. A second electrical path (abc-e-f-g) connected to the ground circuit of the substrate via the substrate can be formed. Noise can be removed from the outer conductor 16 by this second electrical path.

Further, in the connector 1, the connection barrel portion 40 formed on the conductive member 31 is connected between the inner conductor barrel arrangement portion 23 of the outer conductor 16 and the outer conductor barrel portion 21. Therefore, by electrically connecting the conductive member 31 to the shield shell 131 via each external connection portion 39, the outer conductor 16 of the connector 1 is connected via the connection barrel portion 40, each external connection portion 39, and the shield shell 131. A third electrical path (ab-e-f-g) connected to the ground circuit of the substrate can be formed. Noise can also be removed from the outer conductor 16 by this third electrical path. In particular, the branch point b from the outer conductor 16 in the third electric path is farther from the inner conductor barrel portion 14 than the branch point c from the outer conductor 16 in the second electric path. As a result, by forming a third electric path, it is possible to remove the noise transmitted from the coaxial cable 5 via the outer conductor 16 before it is mixed into the central conductor 12 from the inner conductor barrel portion 14. This makes it possible to improve noise removal performance.

(Second embodiment)
FIG. 11 shows a coaxial cable connector 71 according to a second embodiment of the present invention. In the connector 71 in FIG. 11, the same components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 11, in the connector 71, the conductive member 72 includes an inner conductive member 73 and an outer conductive member 74.

The inner conductive member 73 is arranged inside the inner conductor barrel arranging portion 23 of the outer conductor 16, and a part of the inner conductive member 73 is close to the inner conductor barrel portion 14. Further, the insulating member 8 and the outer conductor 7 of the coaxial cable 5 slightly enter the inside of the inner conductor barrel arranging portion 23 from the rear of the inner conductor barrel arranging portion 23, and the ends of the insulating member 8 and the outer conductor 7 are inside. It is located inside the conductor barrel arrangement portion 23 and behind the inner conductor barrel portion 14. The inner conductive member 73 arranged inside the inner conductor barrel arranging portion 23 is electrically connected to the end portion of the outer conductor 7 arranged inside the inner conductor barrel arranging portion 23.

The outer conductive member 74 is attached to the outer peripheral side of the inner conductor barrel arrangement portion 23. A pair of contact portions 76 are provided on the left plate portion 75L and the right plate portion 75R of the external conductive member 72. The left contact portion 76 projects from the right surface (inner surface) of the left plate portion 75L to the right (inside), and the right contact portion 76 projects from the left surface (inner surface) of the right plate portion 75R to the left (inside). When the outer conductive member 74 is attached to the outer peripheral side of the inner conductor barrel arrangement portion 23, these contact portions 75 come into contact with the left and right intermediate wall portions 24 of the inner conductor barrel portion 14. Further, an external connecting portion 77 is formed on the left surface (outer surface) of the left plate portion 75L of the outer conductive member 74 and the right surface (outer surface) of the right plate portion 75R, respectively. Each external connection portion 77 comes into contact with the shell connection piece 132 of the mating connector 121. Further, a pair of contact pieces 78 are provided at the rear portion of the outer conductive member 74. When the outer conductive member 74 is attached to the outer peripheral side of the inner conductor barrel arrangement portion 23, these contact pieces 78 come into contact with the portion of the outer conductor 16 between the outer conductor barrel portion 21 and the inner conductor barrel arrangement portion 23. .. Note that 79 in FIG. 11 is a retainer.

The connector 71 of the second embodiment of the present invention can also obtain almost the same effect as that of the first embodiment of the present invention described above.

(Third Embodiment)
12 to 14 show a coaxial cable connector 81 according to a third embodiment of the present invention. Specifically, FIG. 12 shows the appearance of the connector 81, FIG. 13 shows a disassembled state of the connector 81, and FIG. 14 shows a cross section of the coaxial terminal 82 of the connector 81 cut along its axis. In the connector 81 shown in FIGS. 12 to 14, the same components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

The connector 81 shown in FIGS. 12 to 14 is a relay connector corresponding to the connector 1 of the first embodiment. As shown in FIGS. 12 and 13, a connector fitting hole 88 that fits with the connector fitting portion 44 of the connector 1 of the first embodiment is formed in the front portion of the housing 87, and the connector fitting hole 88 is formed. An insertion port 89 is formed at the front end of the. Further, the housing 87 is provided with a lock mechanism 90. Further, as shown in FIG. 14, the central contact portion 84 of the central conductor 83 in the coaxial terminal 82 has a pin-shaped male shape, and the female central contact portion 13 of the connector 1 of the first embodiment. It can be fitted inside in an elastic contact state. Further, the outer fitting portion 86 of the outer conductor 85 in the coaxial terminal 82 has a diameter smaller than that of the outer fitting portion 17 of the connector 1 of the first embodiment, and is the connector 1 of the first embodiment. It can be fitted inside the outer fitting portion 17.

Similarly to the first embodiment of the present invention described above, the connector 81 of the third embodiment of the present invention also uses the conductive member 31 of the connector 81 to adjust the impedance of the peripheral portion of the internal conductor barrel portion 14 of the connector 81. It can be easily adjusted.

In the above-described embodiment, the case where the dielectric piece 34 is formed on the conductive member 31 has been given as an example, but the dielectric may be applied or formed on the upper surface of the convex portion 33 of the conductive plate portion 32.

Further, in the above-described embodiment, the pair of left side support portions 38L are provided on the front side and the rear side of the left side contact piece 37, and the pair of right side support portions 38R are provided on the front side and the rear side of the right side contact piece 37. One left side support 38L may be provided on either the front side or the rear side of the left side contact piece 37, and one right side support part 38R may be provided on either the front side or the rear side of the right side contact piece 37. ..

Further, in the above-described embodiment, the structure in which the central contact portion 13 of the connector 1 and the central conductor 123 of the mating connector 121 are fitted to each other has been given as an example, but the present invention is not limited to this, and the central contact portions of the two connectors are not limited to this. May be in contact with each other or press against each other. Further, although the case where the inner conductor 6 of the coaxial cable 5 is crimped to the central conductor 12 of the connector 1 has been given as an example, the central conductor and the inner conductor may be pressure-welded or welded.

Further, the coaxial cable connector of the present invention can be suitably used for transmission of a signal having a frequency of, for example, several hundred Hz to several GHz, but can also be applied to transmission of a signal having a frequency other than that. ..

Further, the present invention can be appropriately modified within the scope of the claims and within a range not contrary to the gist or idea of the invention that can be read from the entire specification, and a connector for a coaxial cable accompanied by such a modification is also a technique of the present invention. Included in the idea.

1, 71, 81 Connector 11, 82 Coaxial terminal 12, 83 Center conductor 13, 84 Center contact part 14 Internal conductor Barrel part (internal conductor connection part)
16,85 Outer conductor 17,86 Outer fitting part 21 Outer conductor barrel part 22 Coated barrel part 23 Inner conductor barrel arrangement part (inner conductor arrangement part)
24 Intermediate wall part 25 Opening part 26 Locking piece 31, 72 Conductive member 32 Conductive plate part 33 Convex part 34 Dielectric piece 35L, 75L Left plate part 35R, 75R Right plate part 37 Contact piece (contact part)
38L Left support 38R Right support 39, 77 External connection 40 Connection barrel 41 Notch 43, 87 Housing

Claims (8)

A coaxial terminal having a central conductor, an outer conductor provided on the outer peripheral side of the central conductor, and an insulating member provided between the central conductor and the outer conductor.
It is formed of an insulating material and includes a housing for accommodating the coaxial terminal.
The central conductor is
A central contact portion located on the front end side of the central conductor and in contact with the mating center conductor of the mating connector,
It is arranged on the rear end side of the central conductor and includes an internal conductor connecting portion for connecting the internal conductor of the coaxial cable.
The outer conductor is
An outer fitting portion arranged on the front end side of the outer conductor and fitted with the mating outer conductor of the mating connector,
An outer conductor barrel portion that is arranged on the rear end side of the outer conductor and crimps and connects the outer conductor of the coaxial cable.
The outer conductor is provided with an inner conductor arranging portion which is arranged between the outer fitting portion and the outer conductor barrel portion of the outer conductor and in which the inner conductor connecting portion is arranged.
A coaxial cable connector in which a pair of openings for opening the inside of the internal conductor arrangement portion to the outside are formed on one side and the other side of the coaxial terminal in the radial direction of the internal conductor arrangement portion. ,
It is formed of metal and is electrically connected to the outer conductor or the outer conductor, enters the inside of the inner conductor arrangement portion through one of the pair of openings, and approaches the inner conductor connection portion. Conductive members and
A dielectric piece provided between the conductive member and the internal conductor connecting portion is provided .
The conductive member has a conductive plate portion that covers the one opening, and the conductive plate portion is formed with a convex portion that projects into the inside of the internal conductor arrangement portion through the one opening. A coaxial cable connector, characterized in that a protruding end of the convex portion approaches the internal conductor connecting portion, and the dielectric piece is provided at the protruding end of the convex portion. The coaxial cable connector according to claim 1, wherein the dielectric piece is molded into the conductive member. The inner conductor arranging portion has a pair of intermediate wall portions connecting the outer fitting portion and the outer conductor barrel portion on both sides of the inner conductor connecting portion.
The coaxial cable connector according to claim 1 or 2, wherein the conductive member has a pair of contact portions that come into contact with the outer surfaces of the pair of intermediate wall portions. The one opening is formed in the lower part of the inner conductor arrangement portion, the pair of intermediate wall portions are arranged on the left side and the right side of the inner conductor connection portion, respectively, and the conductive plate portion lowers the one opening portion. Cover from
Said conductive member,
Rising from the left portion of the front Kishirube Denban portion is disposed between the left wall of the said intermediate wall portion of the left housing, the contact portion is provided in contact with an outer surface of the intermediate wall portion of the left Left plate and
The left plate portion is formed between the left side plate portion and the left side wall portion of the housing at a position on the front side or the rear side of the contact portion provided on the left plate portion. With the left support part that supports
A right portion that rises from the right portion of the conductive plate portion, is arranged between the intermediate wall portion on the right side and the wall portion on the right side of the housing, and is provided with the contact portion that contacts the outer surface of the intermediate wall portion on the right side. With the board
The right plate portion is formed between the intermediate wall portion on the right side and the wall portion on the right side of the housing at a position on the front side or the rear side of the contact portion provided on the right plate portion. The coaxial cable connector according to claim 3, further comprising a right-side support portion for supporting the coaxial cable. Each of the intermediate wall portions has a locking piece protruding downward from the intermediate wall portion.
The coaxial cable connector according to claim 4 , wherein notches for locking the pair of locking pieces are formed on the left and right portions of the conductive plate portion. The conductive member has an external connection portion for electrically connecting to a shield shell provided on the mating connector.
The coaxial cable connector according to any one of claims 1 to 5 , wherein the housing is provided with a connection hole that allows the external connection portion to face the outside of the housing. The conductive member has a connection barrel portion for crimping and connecting the conductive member to the outer conductor or the outer conductor.
The coaxial cable connector according to claim 6 , wherein the connection barrel portion is connected between the inner conductor arrangement portion and the outer conductor barrel portion. The coaxial according to any one of claims 1 to 7, wherein the dielectric piece is formed in a plate shape extending in the front-rear direction and forms a microstrip line structure together with the inner conductor connecting portion and the outer conductor barrel portion. Cable connector.

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