JP5050203B2 - Coaxial connector and method of manufacturing the coaxial connector - Google Patents

Description

  The present invention relates to a coaxial connector such as a high-frequency coaxial connector mounted on a circuit board, and a method for manufacturing the coaxial connector.

  With the development of electronic technology, as the transmission speed increases, the frequency increases, and coaxial connectors are widely used in electronic devices such as computers and communication devices and where they are connected. Due to the recent demand for higher density, the coaxial connectors used are also required to be downsized and simplified in structure.

  Conventionally, as a small coaxial connector mounted on a circuit board, the one shown in FIGS. 41 and 42 is known. A receptacle 100 in this coaxial connector is a substantially cylindrical outer conductor 101 that contacts and shields and grounds an outer conductor (not shown) of a plug that is a counterpart coaxial connector, and a central axis of the outer conductor 101. An inner conductor (center conductor) 102 that is in contact with a mating inner conductor (not shown) of the mating coaxial connector, and an insulating housing 103 that holds the inner conductor 102 in a predetermined positional relationship with respect to the outer conductor 101. is doing.

  As shown in FIG. 42, the inner conductor 102 has a reverse L-shaped lead portion 105 in a side view on the back surface of the press-fit portion 104, and as shown in FIGS. In addition, the outer conductor 101 has a back shield part 107 at the back of the press-fit part 106, and a pair of lead parts 108 are provided at the end 107 a of the back shield part 107. The outer conductor 101 bends the back shield part 107 to cover the lead part 105 of the inner conductor 102 and matches the impedance between the outer conductor 101 and the inner conductor 102. In this case, the shield member Since the 107 is bent, the lead portion 108 protrudes to the back side of the outer conductor 101.

  As shown in FIGS. 43 and 44, the outer conductor 101 is connected to the carrier 109 at the end of the back shield part 107. Therefore, when the outer conductor 101 is press-fitted to the insulating housing 103 after the inner conductor 102 is press-fitted to the insulating housing 103 from the back side of the insulating housing 103, the carrier 109 interferes with the lead portion 105 of the inner conductor 102. Since the outer conductor 101 cannot be press-fitted and attached from the back side of the insulating housing 103, the notch portion 109a of the carrier 109 is notched and the outer conductor 101 is separated from the carrier 109 to be press-fitted and attached. It was.

Further, in the conventional coaxial connector receptacle, the outer conductor has an outer conductor main body having a cylindrical portion covering the periphery of the inner conductor. A back shield part covering the lead part side is connected via a bent part. And there exists an external conductor which bent the back shield part and matched the impedance between an internal conductor (refer patent document 1).
Japanese Patent Laid-Open No. 2000-100500

  In the conventional coaxial connector shown in FIGS. 41 and 42, the outer conductor 101 bends the back shield portion 107 to cover the lead portion 105 of the inner conductor 102, and between the outer conductor 101 and the inner conductor 102. Further, since the lead portion 108 protrudes rearward by bending the back shield portion 107, the outer conductor 101 becomes larger in the connector insertion / removal direction, and the end face of the outer conductor 101 There is no space to push the outer conductor 101 with a jig from behind, and the outer conductor 101 must be press-fitted in a state in which the carrier 109 is notched and the outer conductor 101 is separated from the carrier 109. There was a problem that it was not easy.

  The present invention has been made by paying attention to the above-mentioned problems, and the first object thereof is not only that a complete shield can be applied to the internal conductor, but good high-frequency performance can be obtained. It is an object of the present invention to provide a coaxial connector that facilitates assembly of the outer conductor and facilitates assembly of the coaxial connector.

  A second object of the present invention is to provide a method of manufacturing a coaxial connector that facilitates assembly of the outer conductor and facilitates assembly of the coaxial connector.

In order to achieve the first object described above, a coaxial connector according to the present invention is located on a central axis of an external conductor that contacts and shields a counterpart external conductor of the counterpart coaxial connector and shields and grounds. And a coaxial connector comprising an inner conductor that contacts a mating inner conductor of the mating coaxial connector and an insulating housing that holds the inner conductor in a predetermined positional relationship with respect to the outer conductor, and is a substrate contact portion of the inner conductor. The internal conductor side lead is positioned on the back side along the connector insertion / extraction direction of the insulation housing, and the pair of external conductor side lead portions, which are the board contact portions of the external conductor, protrude perpendicularly to the connector insertion / extraction direction for insulation. by positioning so as to be spaced apart from each other on the side surface side of the housing, extend along the outer conductor side lead portion on the side surface of the insulating housing, and Provide a shield mounting part in the insulating housing, and provide a shield member covering the periphery of the inner conductor and the outer conductor in this shield mounting part, and place the shield member on the back side of the insulating housing. In addition, a back shield part is provided so as to be bent so as to cover the inner conductor side lead part and located between the both outer conductor side lead parts .

  With this configuration, the inner conductor is shielded not only by the outer conductor but also by the shield member, and the inner conductor side lead portion is covered by the rear shield portion provided on the shield member, so that the impedance matching with the shield is performed. Can be completely shielded, and good high-frequency performance can be obtained. In particular, since the outer conductor side lead portion protrudes in a direction orthogonal to the connector insertion / extraction direction and is positioned on the side surface side of the insulating housing, the outer conductor does not become large in the connector insertion / extraction direction, and the end surface of the external conductor Can be taken from behind with a jig, the outer conductor can be easily assembled, and the coaxial connector can be easily assembled.

Further, the coaxial connector according to the present invention is the coaxial connector according to the present invention described above, wherein the outer conductor mounting hole is provided in the insulating housing, and is connected to the outer conductor mounting hole on the back side of the insulating housing and A lead lead-out portion that opens on the side surface is provided, and the external conductor mounting hole portion and the lead lead-out portion constitute the external conductor mounting portion, and the external conductor has a press-fit portion, and the connector insertion and removal direction is connected to this press-fit portion. The external conductor side lead part that protrudes in a direction perpendicular to the external conductor is provided, the press-fit part is attached to the external conductor mounting hole part, and the external conductor side lead part is inserted into the lead lead-out part and protrudes to the side surface side of the insulating housing. It was made to let it be made to do.

  With this configuration, the outer conductor side lead portion protrudes in the direction orthogonal to the connector insertion / removal direction and protrudes to the side surface side of the insulating housing, so that the outer conductor does not increase in the connector insertion / removal direction. A space for pushing the end surface of the outer conductor with a jig from behind can be secured, the assembly of the outer conductor is facilitated, and the assembly of the coaxial connector can be facilitated.

  Further, the coaxial connector according to the present invention is the above-described coaxial connector according to the present invention, wherein the shield mounting portion is constituted by the peripheral surface portion of the insulating housing, the shield engaging portion is provided on the back side of the insulating housing, and the shield member Has a shield body consisting of an end face shield part, side shield parts on both sides of the end face shield part, and a bottom shield part connected to these side shield parts, and the back shield part is connected to this shield body. In addition, the shield mounting portion includes a corner portion formed by the end shield portion and the side shield portion, and a locking means formed by the side shield portion and a caulking portion facing the corner portion. The shield member is attached to the cable, and the caulking portion is caulked to hold the shield engaging portion by the corner portion and the caulking portion, thereby locking the shield member to the shield engaging portion. The face shield portion bent by positioning the back side of the insulating housing, characterized in that so as to cover the inner conductor side lead section.

  With this configuration, the inner conductor is surrounded by the end face shield portion, side shield portion, and bottom shield portion of the shield member, and the inner conductor side lead portion is covered with the rear shield portion. A shield can be applied to obtain good high-frequency performance, and a shield member can be attached to the shield mounting part, and the caulking part can be caulked to hold the shield locking part between the corner and the caulking part. By doing so, the shield member can be prevented from coming off, and the shield member can be securely fixed to the shield mounting portion.

  Further, the coaxial connector according to the present invention is the above-described coaxial connector according to the present invention, wherein a notch portion is formed at the center of the corner portion formed by the peripheral surface portion and the back surface portion of the insulating housing, and the notch portion of the corner portion is formed. Arc sides are provided on both sides sandwiched, holes are provided in the connection part of the back shield part with the shield body, both sides sandwiching the hole part of the connection part are used as fulcrum parts, and the back shield part is provided with fulcrum parts. The inner conductor side lead portion is covered by being bent while being in contact with the arc surface portion.

  With this configuration, when the inner conductor side lead part is covered with the rear shield part provided on the shield member, the rear shield part is bent with the fulcrum part in contact with the arcuate surface part to cover the inner conductor side lead part. Thus, the back shield part can be easily bent and the coaxial connector can be easily assembled.

  Further, the coaxial connector according to the present invention is the coaxial connector according to the present invention described above, wherein the inner conductor side lead portion is provided with the inner conductor side beat, and the rear shield portion is provided with the shield side beat facing the inner conductor side beat. It is characterized in that it is provided.

  With this configuration, when the inner conductor side lead portion is covered with the rear shield portion, the shield side beat faces the inner conductor side beat, so the height of these beats can be changed to change the distance between the inner conductor and the rear shield portion. The distance can be adjusted to easily adjust the impedance.

  Further, the coaxial connector according to the present invention is characterized in that, in the above-described coaxial connector according to the present invention, an outer conductor-side beat that protrudes toward the inner conductor is provided on the inner surface of the press-fit portion of the outer conductor. .

  With this configuration, when the outer conductor and the inner conductor are mounted on the insulating housing, the outer conductor-side beat faces the inner conductor, so the inner surface of the press-fit portion of the outer conductor is changed by changing the height of the outer conductor-side beat. Adjustment of the distance between the part and the internal conductor is performed, and the impedance can be easily adjusted.

In order to achieve the second object, a method for manufacturing a coaxial connector according to the present invention includes mounting an inner conductor connected to an inner conductor side carrier on an inner conductor mounting portion of an insulating housing, and Insert the side lead part into the lead insertion groove on the back of the insulating housing, fold the inner conductor side carrier to notch the inner conductor from the inner conductor side carrier, and then connect the outer conductor to the outer conductor side carrier. Is attached to the outer conductor mounting portion of the insulating housing, the pair of outer conductor side lead portions are inserted into the lead lead-out portions that open on both side surfaces of the insulating housing, and the outer conductor side lead portion is connected to the connector insertion / extraction direction. by positioning such spaced to each other on the side surface side of the insulating housing projects orthogonally Te, extending along the outer conductor side lead portion on the side surface of the insulating housing In addition, the outer conductor side carrier is notched and the outer conductor is separated from the outer conductor side carrier, and then the insulating housing is press-fitted into the shield member previously separated from the shield member side carrier to shield the insulating housing while attaching the shielding member to the mounting portion to prevent the omission of the shield member by the locking means, then, by folding the rear shield portion of the shield member is positioned between the two outer conductor side lead section, the two rear shield portion And the inner conductor side lead portion is covered together with the outer conductor side.

  With this configuration, it is possible to easily place the outer conductor side lead portion on the side surface side of the insulating housing by projecting in the direction orthogonal to the connector insertion / extraction direction. For this reason, the outer conductor does not increase in the connector insertion / removal direction, and a space for pushing the end surface of the outer conductor with a jig from behind can be taken, facilitating the assembly of the outer conductor, and the assembly of the coaxial connector. Can be easily.

  Further, the manufacturing method of the coaxial connector according to the present invention is the above-described manufacturing method of the coaxial connector according to the present invention, wherein a shield locking portion is provided on the back side of the insulating housing, and the shield member includes an end face shield portion and the end face. It has a shield body composed of side shield parts on both sides of the shield part and a bottom shield part connected to these side shield parts, and a corner part formed by the end face shield part and the side shield part as a locking means, It is composed of a caulking part formed on the side shield part and facing the corner part, and a shield member is attached to the shield mounting part, and the caulking part is caulked and the corner engaging part and the caulking part are shield engaging parts. The shield member is locked to the shield locking portion by gripping.

  With this configuration, the shield member is attached to the shield attachment portion, and the caulking portion is caulked, and the shield engaging portion is gripped by the corner portion and the caulking portion, thereby preventing the shield member from coming off the shield member. The member can be securely fixed to the shield mounting portion.

  According to the coaxial connector of the present invention, the inner conductor is shielded not only by the outer conductor but also by the shield member, and the inner conductor side lead portion is covered by the rear shield portion provided in the shield member so that impedance matching with the shield is performed. Therefore, the internal conductor can be completely shielded and good high frequency performance can be obtained. In particular, since the outer conductor side lead portion protrudes in a direction orthogonal to the connector insertion / extraction direction and is positioned on the side surface side of the insulating housing, the outer conductor does not become large in the connector insertion / extraction direction, and the end surface of the external conductor Can be taken from behind with a jig, the outer conductor can be easily assembled, and the coaxial connector can be easily assembled.

  Further, according to the coaxial connector according to the present invention, when the inner conductor side lead portion is covered with the rear shield portion, the shield side beat faces the inner conductor side beat, so that the internal height can be changed by changing the height of these beats. Adjustment of the distance between the conductor and the back shield part is performed, and the impedance can be easily adjusted.

  Further, according to the coaxial connector of the present invention, in the state where the outer conductor and the inner conductor are attached to the insulating housing, the height of the outer conductor-side beat is changed because the outer conductor-side beat faces the inner conductor. Thus, the distance between the inner surface portion of the press-fit portion of the outer conductor and the inner conductor is adjusted, and the impedance can be easily adjusted.

  Moreover, according to the manufacturing method of the coaxial connector which concerns on this invention, it can make it easy to make an outer conductor side lead part project in the orthogonal direction with respect to a connector insertion / extraction direction, and to be located in the side surface side of an insulation housing. For this reason, the outer conductor does not increase in the connector insertion / removal direction, and a space for pushing the end surface of the outer conductor with a jig from behind can be taken, facilitating the assembly of the outer conductor, and the assembly of the coaxial connector. Can be easily.

  Further, according to the method for manufacturing a coaxial connector according to the present invention, the shield member is attached to the shield attachment portion, the caulking portion is caulked, and the shield engaging portion is gripped by the corner portion and the caulking portion. Can be prevented, and the shield member can be securely fixed to the shield mounting portion.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  An embodiment of a coaxial connector according to the present invention is shown in FIGS. FIG. 1 is an explanatory view showing a state immediately before the connection between the receptacle and the plug in the coaxial connector according to the present invention, FIG. 2 is an explanatory view showing the state where the receptacle and the plug are connected, and FIG. 3 is an explanatory view showing the state. It is a perspective view of the state seen from the back side. In FIG. 1, the connector insertion / extraction direction is indicated by a symbol a.

  The receptacle A in the coaxial connector according to the present invention is coupled to a plug B which is a counterpart coaxial connector. The receptacle A includes an insulating housing 1, an inner conductor (center conductor) 2, an outer conductor 3, and a metallic shield member (cover member) 4, as shown in FIGS. is there.

  As shown in FIGS. 8 to 12, the insulating housing 1 has a shape in which a cylindrical insulating seat portion 1 </ b> B is protruded from a rectangular pillar-shaped insulating seat portion 1 </ b> A. As shown in FIG. 11, an inner conductor mounting hole 5 is formed on the center side of the insulating housing 1 (center side of the insulating seat portion 1A and the insulating seat portion 1B). A lead insertion groove 6 is formed in 1a. The internal conductor mounting hole 7 and the lead insertion groove 6 constitute an internal conductor mounting portion 7.

  As shown in FIGS. 10 to 12, an outer conductor mounting hole 9 is formed in the back surface portion 1 a of the insulating housing 1 so as to surround the inner conductor mounting hole 5. And the shield latching | locking part 15 is protrudingly provided by the back part 1a. In other words, the shield locking portion 15 has protruding portions 16 protruding left and right of the back surface portion 1a. These protruding portions 16 are connected to the upper corner portion 16a and the lower caulked portion in FIG. It has a receiving portion 16b. A lead lead-out portion 17 is below the caulking receiving portion 16b. Further, the insulating housing 1 is formed with engaging protrusions 14 on both side surfaces of the insulating seat 1 </ b> A, and these engaging protrusions 14 extend to the outer surface of the protrusion 16. The outer conductor mounting hole 8, the peripheral surface portion 1 b of the insulating seat portion 1 B, and the lead lead-out portion 17 constitute an outer conductor mounting portion 8.

  In addition, a shield mounting portion 11 is formed in the insulating housing 1 so as to surround the outer conductor mounting portion 8. This shield mounting portion 11 is composed of a peripheral surface portion 1c of a rectangular pillar-shaped insulating seat portion 1A, and as shown in FIG. A notch 12 is formed, and arcuate surface portions 13 are formed on both sides of the notch 12 of the corner 1d.

  As shown in FIGS. 13 to 15, the inner conductor 2 has a press-fit portion 20 having a contact portion 20 </ b> A, and a lead portion (an inner conductor side lead) that is a substrate contact portion is provided at the end of the press-fit portion 20. Portion) 21 is provided, and the lead portion 21 is bent at a right angle with respect to the axis (center axis) of the press-fit portion 20 and at a right angle with respect to the first bent portion 21a. The second bent portion 21b is formed in parallel with the axial line of the press-fit portion 20, and the inner conductor-side beat 22 protruding to the opposite side of the contact portion 20A is formed in the first bent portion 21a. It is formed in the longitudinal direction of the portion 21a.

  Further, as shown in FIGS. 16 to 21, the outer conductor 3 has an arc-shaped press-fit portion 30, and the press-fit portion 30 is formed with a lance portion 30 a made of a cut and raised piece. Further, a contact portion 30 </ b> A is continuously provided on the front side of the press-fit portion 30, and the contact portion 30 </ b> A has four contact pieces 31 protruding from the press-fit portion 30. A contact 32 is provided at the tip.

The press-fit portion 30 includes a pair of lead portions (external conductor side lead portions) that are board contact portions that protrude in a direction orthogonal to the axis (center axis) of the press-fit portion 30 along the connector insertion / removal direction A. 33 are formed in a state of being separated from each other . Further, as shown in FIGS. 19 and 21, there are four external portions protruding toward the center of the press-fit portion 30 on the arc-shaped inner surface portion of the press-fit portion 30 which is a portion surrounding the inner conductor 2 of the outer conductor 3. Conductor-side beats 34 project, and contact points 32 of the contact pieces 31 exist on the extended lines of the outer conductor-side beats 34.

As shown in FIG. 22 to FIG. 26, the shield member 4 includes an end face shield part 41, side shield parts 42 and 43 that are connected to both side edges of the end face shield part 41, and a bottom face that is connected to the side shield parts 42 and 43. The shield body 4A includes a shield portion 44. The shield body 4A is connected to the edge portion on the back side of the end face shield portion 41 along the connector insertion / removal direction A via the connection portion 50. A formed rear shield part 45 is provided. The back shield part 45 is configured to be positioned between the two lead parts 33 that are separated from each other. Further, the side shield portions 42 and 43 are formed with lead portions 46 as substrate contact portions, and the side shield portions 42 and 43 are formed with mating coaxial connector engaging hole portions 47.

  Further, on the back side of the side shield portions 42 and 43, there are formed an engaging portion 48 formed of a notch portion and an inverted L-shaped caulking portion 49 in a side view, and on the inner surface of these caulking portions 49 As shown in FIG. 26, a plurality of grooves 49a are formed to facilitate caulking. As shown in FIG. 23, the caulking portion 49 is opposed to the corner portions 42a and 43a formed by the end face shield portion 41 and the side shield portions 42 and 43, and these constitute locking means. Yes.

  In addition, a rectangular hole 51 is formed in the connection part 50 of the back shield part 45 to the end shield part 41, and the fulcrum parts 52 on both sides of the hole 51 are shown in FIG. As shown in FIG. 4, a plurality of grooves 53 are formed so that the back shield part 45 can be easily bent, and the inner surface of the back shield part 45 has the center of the shield member 4 when the back shield part 45 is bent. A shield-side beat 54 that protrudes to the side is formed in the longitudinal direction of the back shield part 45.

  Next, the assembly of the receptacle A will be described with reference to FIGS.

  As shown in FIGS. 27 and 28, the inner conductor 2 is mounted on the inner conductor mounting portion 7 of the insulating housing 1. In this case, the inner conductor 2 is connected to the carrier 23 which is the inner conductor side carrier at the second bent portion 21b of the lead portion 21, and the inner conductor 2 is connected to the inner conductor 2 from the back side of the insulating seat portion 1A of the insulating housing 1. The press-fit portion 20 is press-fitted into the inner conductor mounting hole portion 5, the contact portion 20 </ b> A is positioned on the front side of the inner conductor mounting hole portion 5, and the lead portion 21 is inserted into the lead insertion groove portion 6. Then, as shown in FIG. 28, the inner conductor 2 is separated from the carrier 23 by notching at the notch portion 23 a of the carrier 23.

Next, as shown in FIG. 29, the outer conductor 3 is mounted on the outer conductor mounting portion 8 of the insulating housing 1. In this case, the outer conductor 3 is connected to the carrier 35 which is the outer conductor side carrier at the center of the back surface of the press-fit portion 30, and the press-fit portion 30 of the external conductor 3 is connected to the outside from the back surface of the insulating seat portion 1 A of the insulating housing 1. While press-fitting into the conductor mounting hole 9, the contact part 30A on the front side of the press-fitting part 30 is protruded from the outer conductor mounting hole 9, and the four contact pieces 31 of the contact part 30A are arranged around the insulating seat part 1B. To be located. In this state, the lead portion 33 is inserted into the lead deriving portion 17, and protrudes in a direction perpendicular to the connector insertion direction y I by the fact that flank side of the insulating housing 1, the insulating lead portion 33 Haujin portion Ru extend along one side. As shown in FIG. 30, since the notch 12 is formed at a position corresponding to the notch 35a, the carrier 35 can be moved up and down, and the notch is folded at the notch 35a of the carrier 35. Thus, the outer conductor 3 can be separated from the carrier 35. As a result, the entire carrier 35 can be press-fitted, so that one step can be cut as compared with the conventional case.

  In this case, as shown in FIG. 38, four outer conductor-side beats 34 projecting toward the center of the outer conductor 3 (center of the press-fit portion 30) project from the inner surface of the press-fit portion 30. Therefore, the distance R1 between the outer conductor 3 and the inner conductor 2 is adjusted so as to have an optimum impedance by the adjusted height dimension of the outer conductor-side beat 34.

  Next, as shown in FIG. 31, the shield member 4 is previously separated from the carrier 55 which is a shield member carrier. Then, as shown in FIG. 32, the insulating housing 1 on which the inner and outer conductors 2 and 3 are mounted is press-fitted into the shield member 4 from the back surface of the shield member 4 and shielded to the shield mounting portion 11 of the insulating housing 1. The member 4 is attached. When the insulating housing 1 is press-fitted into the shield member 4, the engaging protrusions 14 on both sides of the insulating seat 1 </ b> A engage with the engaging portions 48 of the shield member 4.

  Further, the shield member 4 is formed on the corner portions 42a and 43a formed by the end face shield portion 41 and the side shield portions 42 and 43, and the side shield portions 42 and 43, and is caulked facing the corner portions 42a and 43a. 33 is provided, and as shown in FIG. 33, the corner portions 42a and 43a are formed on the projection 16 of the shield locking portion 15 by press-fitting the insulating housing 1 into the shield member 4. In FIG. 33, it contacts the upper corner 16a.

  Next, as shown by the arrows in FIG. 33, the caulking portion 49 is caulked (folded) to press the caulking portion 49 against the caulking receiving portion 16b of the projecting portion 16, and caulking with the corner portions 42a and 43a. By grasping the protruding portion 16 with the portion 49, the shield member 4 is prevented from being pulled out forward. And as shown in FIG. 35, the shield member 4 comprises the other party connector fitting part F which has a closed cross section with the end surface shield part 41, the side shield parts 42 and 43, and the bottom face shield part 44. As shown in FIG.

Next, as shown in FIG. 36, the back shield part 45 of the shield member 4 is bent at a right angle at the connection part 50, and the inner conductor 2 together with the back side of the press-fit part 30 of the external conductor 3 is joined at the back shield part 45. The first bent portion 21a of the lead portion 21 is covered. At this time, the back surface 1a of the insulating housing 1 may be used as a stopper.

In this case, as shown in FIG. 24, the fulcrum portion 52 provided in the connection portion 50 between the end face shield portion 41 of the rear shield portion 45, a plurality of grooves 53 to facilitate bending back shield portion 45 is formed Further, as shown in FIG. 10 or FIG. 11, because both sides sandwiching the notch portion 12 of the corner portion 1d formed by the peripheral surface portion 1c and the back surface portion 1a of the insulating housing 1 are the arc surface portions 13, The back shield part 45 can be easily bent with a jig (not shown) with the fulcrum part 52 along the arcuate surface part 13. Since a hole 51 is formed at a position corresponding to the cutout portion 12 of the shield member 4 and a portion that is not the fulcrum portion 52 is avoided, it can be bent well.

  As shown in FIG. 37, a shield-side beat 54 is formed on the inner surface of the back shield part 45 in the longitudinal direction of the back shield part 45, and the shield-side beat 54 is formed on the lead part 21 of the inner conductor 2. In order to face the inner conductor side beat 22 provided in the first bent portion 21a, the distance R2 between the inner conductor 2 and the back shield portion 45 is adjusted by these beats 22 and 54, thereby adjusting the impedance. Has been done. Of course, if the impedance is adjusted, the shield side beat 54 and the inner conductor side beat 22 may be unnecessary.

  The receptacle A configured as described above is mounted on a circuit board C as shown in FIG. In this case, the second bent portion 21b of the lead portion 21 which is the substrate contact portion of the inner conductor 2 is soldered to a conductive pattern (conductive portion) (not shown), and is the substrate contact portion of the outer conductor 3. The lead part 33 is soldered to a conductive pattern (conductive part) (not shown), and the lead part 46 of the shield member 4 is soldered to a conductive pattern (conductive part) (not shown) and connected to the ground.

  As shown in FIG. 1, the plug B has an inner insulating housing 60a. The inner insulating housing 60a includes an inner conductor mounting portion 61 and an outer conductor mounting portion 62 so as to surround the inner conductor mounting portion 61. It is formed. An inner conductor 64 that is a counterpart internal conductor is attached to the internal conductor attachment portion 61, and an external conductor 65 that is a counterpart external conductor is attached to the external conductor attachment portion 62. An outer insulating housing 60b is mounted so as to surround the outer conductor 65, and an outer peripheral portion of the outer insulating housing 60b is a shield mounting portion 63. A shield member 66 is attached to the shield attachment portion 63.

  As shown in FIG. 40, the side surface portion 66c of the shield member 66 is provided with a lock portion 67 made of a cut and raised piece, and the lock portion 67 is formed with a locking projection portion 67a. Further, the end surface portion 66a and the bottom surface portion 66b of the shield member 66 are provided with locking portions 68 made of cut and raised pieces.

  As shown in FIG. 1, the inner conductor 64 has a pin-like contact portion 64A on the tip side thereof, and the contact portion 64A is located at the center of the fitting recess 65A formed by the outer conductor 65. ing. The inner conductor 64 is connected to the inner conductor 69A of the coaxial cable 69, and the outer conductor 65 is connected to the outer conductor 69B of the coaxial cable 69.

  As shown in FIG. 39, a handle member 70 is attached to the shield member 66. That is, the handle member 70 has an end surface portion 70a and a bottom surface portion 70b opposite to the end surface portion 70a, and a locking hole portion 71 is formed on the side surface portion 70c. is there. The handle member 70 is fitted on the shield member 66, the locking portion 68 of the shield member 66 is locked to the locking hole 71, and the lock operation portion 72 contacts the lock portion 67. ing.

  Next, the coupling between the receptacle A and the plug B configured as described above will be described.

  1 and 2, the shield member 66 of the plug B is inserted into the mating connector fitting recess F of the receptacle A so that the locking projection 67 a can be engaged with and disengaged from the mating connector engaging hole 47. By engaging, the receptacle A and the plug B are coupled.

  In this case, the shield member 66 comes into contact with the shield member 4 on the receptacle A side, and the shield members 4 and 66 are conducted. The contact portion 64A of the plug B side internal conductor 64 is inserted into the internal conductor 2 on the receptacle A side so that the internal conductors 2 and 64 are electrically connected. The external conductor 65 on the plug B side is connected to the receptacle A side. The outer conductor 3 is brought into contact with the contact 32, and both the outer conductors 3 and 65 are conducted.

  When the plug B is removed from the receptacle A, the lock operating portion 72 of the handle member 70 is operated to push the lock portion 67 and the locking projection 67a of the lock portion 67 is removed from the mating connector engaging hole 47. This is done by pulling out the plug B.

  As shown in FIG. 1 to FIG. 3 and FIG. 7, according to the embodiment of the present invention described above, the periphery of the inner conductor 2 is the end face shield portion 41, the side shield portions 42 and 43 of the shield member 4, and the bottom shield. The shield body 4A is surrounded by the portion 44, and the lead portion 21 of the inner conductor 2 is covered with the rear shield portion 45, so that the inner conductor 2 can be completely shielded and good high frequency performance can be obtained. be able to.

Further, as shown in FIGS. 8 to 20, according to the embodiment of the present invention described above, the outer conductor mounting hole 9 is provided in the insulating housing 1, and the outer conductor mounting portion is provided on the back side of the insulating housing 1. 8 , and a lead lead-out portion 17 that opens to the side surface of the insulating housing 1 is provided. The outer conductor 3 has a press-fit portion 30, and the press-fit portion 30 is orthogonal to the connector insertion / removal direction A. By providing a projecting lead portion 33, mounting the press-fit portion 30 in the outer conductor mounting hole 9, and inserting the lead portion 33 into the lead lead-out portion 17 so as to project to the side surface side of the insulating housing 1, The outer conductor 3 does not increase in the connector insertion / removal direction A, and a space for pushing the end face of the outer conductor 3 from behind with a jig can be taken, so that the outer conductor 3 can be easily assembled, and the coaxial connector It can facilitate assembly.

  Further, according to the above-described embodiment of the present invention, the shield member 4 is mounted on the shield mounting portion 11, and the caulking portion 49 is caulked so that the corner locking portions 49 a and 43 a and the caulking portion 49 are connected to the shield locking portion 15. , The shield member 4 can be prevented from coming out forward, and the shield member 4 can be securely fixed to the shield mounting portion 11.

  Further, according to the embodiment of the present invention described above, when the back shield part 45 provided on the shield member 4 covers the lead part 21 of the inner conductor 2, the back shield part 45 has the fulcrum part 52 as the arcuate surface part 13. The lead shield 21 is bent in the contacted state to cover the lead portion 21 of the inner conductor 2, the back shield portion 45 can be easily bent, and the coaxial connector can be easily assembled. .

  Further, according to the embodiment of the present invention described above, when the back shield part 45 covers the lead part 21 of the inner conductor 2, the shield side beat 54 faces the inner conductor side beat 22, By changing the height, the distance R2 between the inner conductor 2 and the back shield part 45 is adjusted, and the impedance can be easily adjusted.

  Further, according to the above-described embodiment of the present invention, in the state where the outer conductor 2 and the inner conductor 3 are mounted on the insulating housing 1, the outer conductor side beat 34 faces the inner conductor 2. By changing the height of the beat 34, the distance R1 between the inner surface portion of the press-fit portion of the outer conductor 3 and the inner conductor 2 is adjusted, and the impedance can be easily adjusted. These external conductor side beats 34 are not necessary when the impedance is adjusted.

  Further, according to the above-described embodiment of the method for manufacturing a coaxial connector according to the present invention, the inner conductor 2 connected to the carrier 23 is mounted on the inner conductor mounting portion 7 of the insulating housing 1 to insulate the lead portion 21. Inserted into the lead insertion groove 6 provided on the back of the housing 1, the carrier 23 is notched and the internal conductor 2 is separated from the carrier 23, and then the external conductor 3 connected to the carrier 35 is connected to the external conductor of the insulating housing 1. The lead portion 33 is inserted into the lead lead-out portion 17 that is opened on both side portions of the insulating housing 1, and the lead portion 33 protrudes in a direction orthogonal to the connector insertion / removal direction a. The shield member is cut off from the carrier 55 in advance by cutting the outer conductor 3 from the carrier 35 by notching the carrier 35. The insulation housing 1 is press-fitted into the shield housing 4 and the shield member 4 is attached to the shield attachment portion 11 of the insulation housing 1, and the shield member 4 is prevented from coming off by the locking means. 45 is bent at a right angle so that the back shield part 45 covers the lead part 21 of the inner conductor 2 so that the outer conductor side lead part protrudes in a direction perpendicular to the connector insertion / removal direction a. It can be easily positioned on the side surface. For this reason, the outer conductor does not increase in the connector insertion / removal direction, and a space for pushing the end surface of the outer conductor with a jig from behind can be taken, facilitating the assembly of the outer conductor, and the assembly of the coaxial connector. Can be easily.

  In addition, according to the above-described embodiment of the method for manufacturing a coaxial connector according to the present invention, the shield locking portion 15 is provided on the back side of the insulating housing 1, and the shield member 4 includes the end face shield portion 41 and the end face shield. The shield body 4A includes side shield parts 42 and 43 on both sides of the part 41 and a bottom shield part 45 connected to the side shield parts 42 and 43, and the locking means includes the end shield part 41 and the side face parts. The corner portions 42a and 43a formed by the shield portions 42 and 43 and the caulking portions 49 formed on the side shield portions 42 and 43 and facing the corner portions 42a and 43a are formed on the shield mounting portion 11. The shield member 4 is attached and the caulking portion 49 is caulked to hold the shield engaging portion 15 by the corner portions 42a and 43a and the caulking portion 49, thereby sealing the shield member 4 By which is adapted to engage the locking portion 15, to prevent the shield member 4 comes out, the shield member 4 can be reliably fixed to the shield mounting portion 11.

  In the coaxial connector according to the present invention, the internal conductor can be completely shielded and good high-frequency performance can be obtained. In particular, the outer conductor does not increase in the connector insertion / removal direction, and a space for pushing the end surface of the outer conductor with a jig from behind can be taken, facilitating the assembly of the outer conductor and the assembly of the coaxial connector. It is useful as a high-frequency coaxial connector or the like attached to a circuit board.

It is explanatory drawing which represented the state just before the coupling | bonding of the receptacle and plug in the coaxial connector which concerns on this invention with the cross section. It is explanatory drawing which represented the state which couple | bonded the receptacle and the plug with the cross section. It is a perspective view of the state seen from the back side of the receptacle. It is a front view of the receptacle. It is a side view of the receptacle. It is a rear view of the receptacle. It is sectional drawing which follows the SS line | wire of FIG. It is a top view of the insulation housing in the receptacle. It is a side view of the insulation housing. It is a rear view of the insulation housing. It is sectional drawing which follows the TT line | wire of FIG. It is sectional drawing which follows the UU line of FIG. It is a side view of an internal conductor. It is a rear view of the internal conductor. It is sectional drawing which follows the VV line of FIG. It is a top view of an external conductor. It is a side view of the same external conductor. It is a front view of the same external conductor. It is a rear view of the same external conductor. It is sectional drawing which follows the WW line of FIG. It is an enlarged view of the X section of FIG. It is a top view of a shield member. It is a side view of the shield member. It is a bottom view of the same shield member. It is a front view of the shield member. It is sectional drawing which follows the YY line | wire of FIG. It is explanatory drawing of the assembly process which press-fits an internal conductor to an insulation housing. It is explanatory drawing which shows the state which press-fit the internal conductor in the insulation housing in a cross section. It is explanatory drawing of the assembly process which press-fits an external conductor in an insulation housing. It is explanatory drawing which shows the state which press-fitted the external conductor in the insulation housing in a cross section. It is explanatory drawing of carrier folding in a shield member. It is explanatory drawing of the assembly process which press-fits the insulation housing provided with the outer conductor inside to the shield member. It is explanatory drawing of the caulking process of a caulking part. It is explanatory drawing which shows the caulking state of a caulking part. It is explanatory drawing which shows the state which press-fit the insulation housing provided with the outer conductor inside to the shield member. It is explanatory drawing which shows the state which the back shield part was bent and the assembly was completed in a cross section. It is explanatory drawing of the distance between an internal conductor side beat and the shield side beat facing this internal conductor side beat. It is explanatory drawing of the distance between an outer conductor side beat and an inner conductor. It is a perspective view of a plug. It is a perspective view of the plug unit in the plug. It is a rear view of the conventional coaxial connector. It is sectional drawing which follows the ZZ line | wire of FIG. It is a side view of the outer conductor in the conventional coaxial connector. It is a rear view of the same external conductor.

Explanation of symbols

A Receptacle B Plug (mating coaxial connector)
A Connector insertion / extraction direction 1 Insulating housing 1A Insulating seat 1B Insulating seat 1a Back 1b Peripheral surface 1c Peripheral surface 1d Corner 2 Internal conductor 3 External conductor 4 Shield member 4A Shield body 5 Internal conductor mounting hole 6 Lead insertion groove 7 Inner conductor mounting portion 8 External conductor mounting portion 9 External conductor mounting hole portion 11 Shield mounting portion 12 Notch portion 13 Arc surface portion 14 Engaging projection portion 15 Shield locking portion 16 Protruding portion 16a Corner portion 16b Caulking receiving portion 17 Lead derivation Part 20 Press-fit part 21 Lead part (board contact part) (Internal conductor side lead part)
21a First bent portion 21b Second bent portion 22 Inner conductor side beat 23 Carrier (inner conductor side carrier)
30 Press-fit part 31 Contact piece 32 Contact 33 Lead part (substrate contact part) (external conductor side lead part)
34 Outer conductor side beat 35 Carrier (outer conductor side carrier)
41 End face shield part 42, 43 Side shield part 42a, 43a Corner part (locking means)
44 Bottom shield part 45 Back shield part 46 Lead part 49 Caulking part (locking means)
50 connecting portion 51 hole portion 52 fulcrum portion 54 shield side beat 55 carrier (shield member side carrier)
64 Inner conductor (mating inner conductor)
65 Outer conductor (mating outer conductor)

Claims (8)

An external conductor that contacts and shields the mating outer conductor of the mating coaxial connector, an inner conductor that is located on the central axis of the outer conductor and contacts the mating inner conductor of the mating coaxial connector, and the inner conductor A coaxial connector having an insulating housing that holds the outer conductor in a predetermined positional relationship with respect to the outer conductor,
The inner conductor side lead portion that is the substrate contact portion of the inner conductor is positioned on the back side along the connector insertion / extraction direction of the insulating housing, and the pair of outer conductor side lead portions that are the substrate contact portions of the outer conductor are the connector. By projecting in a direction orthogonal to the insertion / extraction direction and being positioned so as to be separated from each other on the side surface side of the insulating housing, the outer conductor side lead portion extends along the side surface of the insulating housing, and A shield mounting portion is provided in the insulating housing, and a shield member that covers the periphery of the inner conductor and the outer conductor is provided in the shield mounting portion, and the outer conductor is positioned on the back side of the insulating housing. Is bent to cover the inner conductor side lead portion together with the back surface side of the .. and located between the outer conductor side lead portions. A coaxial connector provided with a back shield part.
An outer conductor mounting hole is provided in the insulating housing, and a lead lead-out portion that is continuous with the outer conductor mounting hole and opens on a side surface of the insulating housing is provided on the back side of the insulating housing. The hole portion and the lead lead-out portion constitute an external conductor mounting portion, and the external conductor has a press-fit portion, and the external conductor protrudes in a direction perpendicular to the connector insertion / extraction direction to the press-fit portion. A side lead portion is provided, and the press-fit portion is attached to the outer conductor mounting hole portion, and the outer conductor side lead portion is inserted into the lead lead-out portion so as to protrude to the side surface side of the insulating housing. The coaxial connector according to claim 1.   The shield mounting portion is constituted by a peripheral surface portion of the insulating housing, and a shield locking portion is provided on the back side of the insulating housing. The shield member includes an end surface shield portion and side shields on both sides of the end surface shield portion. And a bottom shield part connected to these side shield parts, the back shield part is connected to the shield body, and the end face shield part and the side shield part are And a locking means formed by a corner portion formed and a caulking portion formed on the side shield portion and facing the corner portion, and the shield member is mounted on the shield mounting portion, The shield member is locked to the shield locking portion by clamping the crimping portion and gripping the shield locking portion by the corner portion and the crimping portion, and the back surface Coaxial connector according to claim 1 or claim 2, characterized in that to cover the inner conductor side lead portion Rudo portion is positioned on the rear side of the folding in the insulating housing. A notch is formed in the center of the corner formed by the peripheral surface portion and the back surface portion of the insulating housing, and arc surface portions are provided on both sides of the notch portion of the corner portion, and the shield main body of the back shield portion and The connecting portion is provided with a hole portion, and both side portions sandwiching the hole portion of the connecting portion are used as fulcrum portions, and the back shield portion is bent in a state where the fulcrum portion is in contact with the circular arc surface portion. Te, coaxial connector according to 請 Motomeko 3, characterized in that covering the inner conductor side lead section.   5. The inner conductor side beat is provided in the inner conductor side lead portion, and the shield side beat is provided in the rear shield portion so as to be opposed to the inner conductor side beat. The coaxial connector according to any one of the above. Wherein an inner surface portion of the press-fitting portion of the outer conductor, the coaxial connector according to claim 2, characterized in that it has to provide an external conductor side beat projecting to the inner conductor side. The inner conductor connected to the inner conductor side carrier is attached to the inner conductor mounting portion of the insulating housing, the inner conductor side lead portion is inserted into the lead insertion groove provided on the back of the insulating housing, and the inner conductor side carrier is inserted. The inner conductor is separated from the inner conductor side carrier by notch folding, and then the outer conductor connected to the outer conductor side carrier is attached to the outer conductor attaching portion of the insulating housing, and a pair of outer conductor side lead portions are provided. Are inserted into lead lead-out portions that open on both side surfaces of the insulating housing, and the outer conductor side lead portions protrude in a direction perpendicular to the connector insertion / extraction direction and are spaced apart from each other on the side surface side of the insulating housing. As a result, the outer conductor side lead portion extends along the side surface of the insulating housing, and the outer conductor side carrier is knocked. Fold and separate the outer conductor from the outer conductor-side carrier, and then press-fit the insulating housing into a shield member previously separated from the shield member-side carrier, and attach the shield member to the shield mounting portion of the insulating housing while, the omission of the shield member to prevent the locking means, then, the bent rear shield portion of the shield member is positioned between said two outer conductor side lead portion, said outer conductor at both rear shield A method of manufacturing a coaxial connector, wherein the inner conductor side lead portion is covered together with the side.
  A shield locking portion is provided on the rear side of the insulating housing, and the shield member is a shield composed of an end shield portion, side shield portions on both sides of the end shield portion, and a bottom shield portion connected to the side shield portions. The locking means comprises a corner portion formed by the end shield portion and the side shield portion, and a caulking portion formed in the side shield portion and facing the corner portion. The shield member is attached to the shield attachment portion, the caulking portion is caulked, and the shield engaging portion is gripped by the corner portion and the caulking portion, whereby the shield member is attached to the shield engaging portion. The method for manufacturing a coaxial connector according to claim 7, wherein the coaxial connector is engaged with a stop portion.

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