JP2019003783A - Electric connector - Google Patents

Abstract

To provide an electric connector which can be efficiently manufactured.SOLUTION: A plug connector is fitted to a receptacle connector connected to a circuit board. A ground bar 10 is a conductive member which is electrically connected to terminal parts of external conductors of a plurality of coaxial cables 2 arranged in a row. A ground shell 11 houses the terminal parts of the plurality of coaxial cables 2 as well as the ground bar 10, and it is a conductive member which is grounded to the circuit board via a grounding member of a mating connector when it is fitted to the receptacle connector. The ground shell 11 comprises: a first conductive shell 11A having a contact part 22 which comes into contact with the ground bar 10 in a manner capable of being solder-welded thereto; and a second conductive shell 11B which can fill solder into the contact part 22, and which is provided with a gap part 33 that is welded to the contact part 22 via the solder thus filled.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an electrical connector.

  Patent Documents 1 and 2 include a conductive ground bar electrically connected to outer conductors of a plurality of coaxial cables, and a ground shell including a pair of conductive shells soldered to the ground bar. An electrical connector is disclosed. In such an electrical connector, the flat portion of one shell is soldered to one surface of the ground bar, and the flat portion of the other shell is soldered to the other surface of the ground bar (the surface facing away from the one surface). Is soldered. Thereby, the electrical connection between the ground bar and the ground shell is realized.

Japanese Patent No. 5794671 Japanese Patent No. 5826654

  In the above-described electrical connector manufacturing process, when a pair of shells are connected to the ground bar, two solders, that is, a process of soldering one shell and the ground bar and a process of soldering the other shell and the ground bar. An attaching process is required. However, since it is necessary to manufacture many electrical connectors, the efficiency of the manufacturing process is required.

  This invention is made | formed in view of the said situation, and it aims at providing the electrical connector which can be manufactured efficiently.

In order to achieve the above object, an electrical connector according to the present invention comprises:
An electrical connector that mates with a mating connector connected to a circuit board,
A conductive ground member electrically connected to the terminal portions of the outer conductors of the plurality of coaxial cables arranged in a row;
A conductive ground shell that houses the terminal portions of the plurality of coaxial cables and the ground member, and is grounded to the circuit board via a grounding member of the mating connector when fitted with the mating connector;
With
The ground shell is
A first shell having a contact portion that contacts the ground member so as to be solderable;
A second shell provided with a gap that can be filled with solder in the contact portion and welded to the contact portion with the filled solder;
It is composed of

In this case, the gap portion exposes the boundary between the ground member and the first shell in the contact portion to the outside.
It is good as well.

Further, the contact portion is formed with a through hole that forms the boundary.
It is good as well.

The contact portion has a plurality of flat plate portions formed to be bent so as to surround the ground member, and the through hole is provided in any flat plate portion,
The second shell has a bent portion along the contact portion, and the gap portion is provided according to the through hole.
It is good as well.

The first shell is provided with a plurality of contact portions in the same direction,
The second shell is provided with a plurality of the gap portions according to the contact portion.
It is good as well.

The abutting portion and the gap portion are provided outside both ends of a plurality of coaxial cable rows,
It is good as well.

The abutting portion and the gap portion are provided in a portion where a distance between adjacent coaxial cables is wide in the row of the plurality of coaxial cables.
It is good as well.

  According to the present invention, the second shell is provided with the gap that can be filled with solder in the contact portion of the first shell that contacts the ground member. For this reason, if the gap portion is filled with solder, the solder is filled up to the contact portion, so that the ground bar, the first shell, and the second shell can be soldered at a time. Thereby, since two soldering processes can be put together into one, it can manufacture efficiently.

It is a top view which shows the structure of the connector apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the state in which the several coaxial cable was connected to the ground bar. It is a perspective view which shows the structure of a ground shell. It is a top view when the 2nd shell is removed from the plug connector. It is an expansion perspective view of a contact part periphery. It is a top view which shows the state of the ground bar before a slide. It is an expansion perspective view of a space | gap part periphery. It is AA sectional drawing of FIG. It is an enlarged view of the dotted-line part D of FIG. It is a top view which shows the structure of the plug connector which concerns on Embodiment 2 of this invention. It is BB sectional drawing of FIG. It is an enlarged view of the dotted-line part E of FIG. It is a side view which shows the structure of the plug connector which concerns on Embodiment 3 of this invention. It is CC sectional drawing of FIG. It is an enlarged view of the dotted-line part F of FIG.

Embodiment 1 FIG.
First, the first embodiment of the present invention will be described in detail with reference to FIGS. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

  As shown in FIG. 1, the connector device 1 is a connector that electrically connects a plurality of coaxial cables 2 to a circuit board 3. The connector device 1 includes a plug connector 1A as an electrical connector according to the present embodiment connected to the ends of a plurality of coaxial cables 2, and a receptacle connector 1B as a mating connector mounted and connected to a circuit board 3. . The plurality of coaxial cables 2 are electrically connected to the circuit board 3 by fitting the plug connector 1A with the receptacle connector 1B.

  As shown in FIG. 2, in the plug connector 1A, the coaxial cables 2 are arranged in a line along the x-axis direction. The plurality of coaxial cables 2 are divided into ten first groups arranged on the −x axis side and ten second groups arranged on the + x axis side. The interval between the first group and the second group is set wider than the interval between the coaxial cables 2 in the group.

  The plug connector 1A includes a ground bar 10 (see FIG. 2) as a conductive ground member that is soldered to the outer conductor 2b of the coaxial cable 2, and a conductive ground shell 11 that covers the entire plug connector 1A (see FIG. 3). A plurality of conductive contacts 12 arranged at predetermined intervals in the x-axis direction, and a housing 13 that is an insulating member that insulates the contacts 12.

  As shown in FIG. 2, the ground bar 10 is an elongated flat plate-like member extending in the x-axis direction. The ground bar 10 is soldered to the outer conductor 2 b of the arranged coaxial cables 2 and integrated with the plurality of coaxial cables 2.

  The ground shell 11 accommodates the terminal portions of the plurality of coaxial cables 2 and the ground bar 10, and when the plug connector 1A is fitted to the receptacle connector 1B, the ground shell 11 is grounded to the circuit board 3 via the ground shell 41 of the receptacle connector 1B. .

  As shown in FIG. 3, the ground shell 11 includes a first shell 11A and a second shell 11B. Both the first shell 11 </ b> A and the second shell 11 </ b> B are flat plate-like members whose longitudinal direction is the x-axis direction.

  The first shell 11A has the flat plate portion 20 as a main component. The second shell 11B has the flat plate portion 30 as a main component. In the first shell 11A, connection portions 21 are provided at both ends of the flat plate portion 20 in the x-axis direction, and in the second shell 11B, connection portions 31 are provided at both ends of the flat plate portion 30 in the x-axis direction. Is provided. As shown in FIG. 3, the first shell 11 </ b> A and the second shell 11 </ b> B are bonded together, and the connecting portions 21 and 31 facing each other are soldered. Thereby, the ground shell 11 is formed. Actually, the bonding is performed in a state where the tip portions of the plurality of coaxial cables 2, the ground bar 10, the plurality of contacts 12, the housing 13, and the locking portion 5 are rotatably sandwiched.

  Three abutting portions 22 are provided on the edge portion on the -y side of the first shell 11A. The contact portions 22 are respectively disposed at both ends of the arrangement of the coaxial cables 2, and one contact portion 22 is disposed between the first group and the second group of the coaxial cables 2.

  The contact portion 22 is formed by bending a flat plate extending in the −y direction from the flat plate portion 20 90 degrees to the + z side and bending the bent portion 90 degrees to the + y side from the middle. That is, the contact portion 22 is a top view of the plug connector 1A with the second shell 11B removed, as shown in FIGS. 4 and 5. The ground bar 10 is a portion surrounded by the contact portion 22. The inner surface of the contact portion 22 faces the ground bar 10. The three contact portions 22 are provided at positions that do not interfere with the coaxial cable 2.

  The contact portion 22 is provided with a through hole 23. As shown in FIGS. 4 and 5, a part of the ground bar 10 is exposed from the through hole 23. In order to insert the ground bar 10 into the portion surrounded by the contact portion 22, the ground bar 10 is first placed at the position shown in FIG. 6, and then slides to the position shown in FIGS. Thereby, the contact part 22 comes to contact | abut with the ground bar 10 so that solder welding is possible. In addition, two protrusions are provided at the edge of the through hole 23 so that the fillet is expanded and solder is more easily welded.

  As shown in FIG. 4, the plurality of contacts 12 are press-fitted into the insertion grooves of the housing 13 in a state of extending in the y-axis direction, and are arranged in the x-axis direction. As shown in FIG. 5, the plurality of contacts 12 are arranged so as to be in one-to-one contact with the inner conductor 2 a of the coaxial cable 2 connected to the ground bar 10. In the state shown in FIG. 5, the inner conductor 2a of the coaxial cable 2 and the contact 12 in contact with the inner conductor 2a are soldered. When the second shell 11B is attached, the plug connector 1A is in the state shown in FIGS.

  As shown in FIG. 7, the second shell 11 </ b> B is provided with a bent portion 32 that contacts the contact portion 22. As shown in FIGS. 8 and 9, the bent portion 32 is bent along the contact portion 22.

  As shown in FIGS. 7, 8, and 9, the bent portion 32 is provided with a gap portion 33. In the present embodiment, the gap portion 33 is formed by partially cutting the bent portion 32. The contact portion 22 is exposed to the outside through the gap portion 33, and the gap portion 33 can be filled with solder. The gap portion 33 can be welded to the contact portion 22 with a filled solder.

  Note that a through hole 23 is formed in the contact portion 22. The gap 33 exposes the boundary formed by the through hole 23, that is, the boundary 24 between the ground bar 10 and the first shell 11 </ b> A at the contact portion 22. If the solder is filled from the gap portion 33 of the second shell 11 </ b> B, the solder enters the through hole 23 from the gap portion 33. As a result, the ground bar 10 and the first shell 11A and the ground bar 10 and the second shell 11B are soldered at a time.

  In other words, in the first shell 11 </ b> A, the contact portion 22 is formed by bending a plurality of flat plate portions (+ z side, −y side, −z side) so as to surround the ground bar 10. )have. And the through-hole 23 is provided in the flat plate part located in the + z side. The second shell 11 </ b> B has a bent portion 32 that is bent along the contact portion 22, and a gap portion 33 is provided according to the through hole 23.

  The first shell 11A is provided with three contact portions 22 in the same direction (+ z direction). Further, the second shell 11 </ b> B is provided with a gap portion 33 at a position corresponding to the contact portion 22. One protrusion for generating a fillet is also provided at the edge of the gap 33.

  Further, the abutting portion 22 and the gap portion 33 are provided on the outer sides of both ends of the plurality of coaxial cables 2 in the x-axis direction, and portions where the adjacent coaxial cables 2 are wide in the rows of the plurality of coaxial cables 2. That is, it is provided between the first group and the second group.

  Returning to FIG. 1, the receptacle connector 1 </ b> B includes a conductive ground shell 41 (a member for grounding), a plurality of conductive contacts 42 arranged at predetermined intervals in the x-axis direction, and insulation that insulates the contacts 42. And a housing 43 that is a sex member. The ground shell 41 is grounded to the circuit board 3, and the contact 42 is electrically connected to the signal electrode of the circuit board 3.

  1 A of plug connectors are provided with the insertion part 4 in which the edge part of the contact 12 arranged in the x-axis direction was formed, and the latching | locking part 5 formed so that rotation about the x-axis was possible. . A receptacle 6 is provided in the receptacle connector 1B.

  With the ground shell 11 of the plug connector 1A rotated in the + z direction from the position shown in FIG. 1, the insertion portion 4 of the plug connector 1A is inserted into the insertion port 6 of the receptacle connector 1B. In this state, when the locking portion 5 is returned to the position shown in FIG. 1, the locking portion 5 is locked to the receptacle connector 1B, and the fitting between the plug connector 1A and the receptacle connector 1B is completed.

  When the plug connector 1A and the receptacle connector 1B are fitted, the ground shell 11 and the ground shell 41 come into contact with each other, and the contact 12 and the contact 42 come into contact with each other. As a result, a grounded transmission line is formed by the outer conductor 2 b of the coaxial cable 2, the ground bar 10, the ground shell 11, the ground shell 41, and the ground terminal of the circuit board 3. A signal transmission line is formed by the inner conductor 2 a of the coaxial cable 2, the contact 12, the contact 42, and the terminal of the circuit board 3. Thereby, signal transmission is possible between the coaxial cable 2 and the circuit board 3.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to FIGS. In the plug connector 1A according to the present embodiment, the formation position of the through hole 23 in the contact portion 22 of the first shell 11A and the formation position of the gap portion 33 in the bent portion 32 of the second shell 11B are as follows. This is different from the first embodiment.

  As shown in FIGS. 10 to 12, in the present embodiment, the contact portion 22 has three flat plate portions (−z side, −y side, + z side) formed by being bent so as to surround the ground bar 10. A flat plate portion). In the present embodiment, a through hole 23 is provided in a flat plate portion located on the −z side in the contact portion 22.

  Further, the second shell 11 </ b> B has a bent portion 32 that is bent along the contact portion 22. In the present embodiment, the bent portion 32 has three flat plate portions (the flat plate portions located on the −z side, the −y side, and the + z side).

  In the bent portion 32, a gap portion 33 is provided to face the position where the through hole 23 is formed. In the present embodiment, the gap 33 is an opening. When the solder is filled from the gap portion 33 of the second shell 11 </ b> B, the solder enters the through hole 23 from the gap portion 33. Thereby, between the ground bar 10 and the 1st shell 11A and between the ground bar 10 and the 2nd shell 11B can be soldered at once.

Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described in detail with reference to FIGS. In the plug connector 1A according to the present embodiment, the formation position of the through hole 23 in the contact portion 22 of the first shell 11A and the formation position of the gap portion 33 in the bent portion 32 of the second shell 11B are as follows. This is different from the first and second embodiments.

  As shown in FIGS. 13 to 15, in the present embodiment, the contact portion 22 has three flat plate portions (−z side, −y side, + z side) formed by being bent so as to surround the ground bar 10. A flat plate portion). Among these, the through-hole 23 is provided in the flat plate part located in the -z side.

  Further, the second shell 11 </ b> B has a bent portion 32 that is bent along the contact portion 22. In the present embodiment, the bent portion 32 has two flat plate portions (the flat plate portions located on the + z side and the −y side).

  In the bent portion 32, a gap portion 33 is provided to face the position where the through hole 23 is formed. In the present embodiment, the gap 33 is an opening. If the solder is filled from the gap portion 33 of the second shell 11 </ b> B, the solder enters the through hole 23 from the gap portion 33. Thereby, between the ground bar 10 and the 1st shell 11A and between the ground bar 10 and the 2nd shell 11B can be soldered at once.

  As described above in detail, according to each of the above embodiments, the gap portion 33 that can fill the contact portion 22 of the first shell 11A that contacts the ground bar 10 with the solder is provided in the second shell 11B. Is provided. For this reason, if the gap portion 33 is filled with solder, the solder is filled up to the contact portion 22, so that the ground bar 10, the first shell 11A, and the second shell 11B can be soldered at a time. . Thereby, since two soldering processes can be combined into one, it can manufacture efficiently (a manufacturing process can be simplified).

  In the above-described embodiment, the gap 33 exposes the boundary 24 between the ground bar 10 and the first shell 11 </ b> A in the contact portion 22 to the outside. This makes it easier to fill the solder between the ground bar 10 and the first shell 11A. However, the present invention is not limited to this. If the gap between the ground bar 10 and the first shell 11A communicates with the gap portion 33 and the solder can be reliably fed, it is not necessary to expose the boundary 24 to the outside.

  In the above embodiment, the contact portion 33 is formed with the through hole 23 that forms the boundary 24. This makes it easier to fill the solder through the through hole 23 up to the innermost ground bar 10. However, the present invention is not limited to this. If the solder can be reliably sent to the ground bar 10, it is not necessary to provide the through hole 23. For example, a cutout for filling the solder up to the ground bar 10 may be provided in the first shell 11A.

  Further, according to the above embodiment, in the first shell 11A, the contact portion 22 has a plurality of flat plate portions formed by being bent so as to surround the ground bar 10, and any one of the flat plate portions The through-hole 23 was provided in. The second shell 11 </ b> B has a bent portion 32 that is bent along the contact portion 22, and a gap portion 33 is provided in accordance with the through hole 23. If it does in this way, the freedom degree of the position which provides the through-hole 23 and the space | gap part 33 can be raised now, and the through-hole 23 and the space | gap part 33 can be provided in the place where it is easy to fill with solder. Thereby, soldering can be further facilitated.

  For example, in the conventional connector, the electrical connection between the ground bar, the first shell, and the second shell requires three solders on the front surface and three solders on the back surface. In the plug connector 1A, the electrical connection can be realized by soldering at three places on one surface.

  According to the above embodiment, the first shell 11A is provided with a plurality of contact portions 22 in the same direction, and the second shell 11B is provided with a plurality of gap portions 33 according to the contact portions 22. Is provided. In this way, it is only necessary to fill the solder in the same direction, so that the soldering can be made more efficient.

  Further, according to the above embodiment, the contact portion 22 and the gap portion 33 are provided on the outer sides of both ends of the row of the plurality of coaxial cables 2. In this way, the coaxial cable 2 can be firmly fixed at both ends of the array. Thereby, the twist of the coaxial cable 2 can be prevented, for example.

  Moreover, according to the said embodiment, in the row | line | column of the several coaxial cable 2, it is provided in the part with the large space | interval of the adjacent coaxial cable 2. FIG. In this way, the coaxial cable 2 can be fixed more firmly than soldering only at both ends of the arrangement of the coaxial cables 2.

  However, if fixing by soldering is sufficient, the number of soldering points may be one. Further, four or more locations where soldering is performed, that is, the contact portion 22 and the gap portion 33 may be provided. Further, soldering provided between the arrangements of the coaxial cables 2 may be performed at a plurality of locations.

  The connector device 1 according to the above embodiment is of a type in which the plug connector 1A and the receptacle connector 1B are fitted in a direction parallel to the mounting surface of the circuit board 3, but the present invention is not limited to this. I can't. For example, the present invention can also be applied to a connector device that fits in a direction perpendicular to the mounting surface of the circuit board 3.

  Various embodiments and modifications can be made to the present invention without departing from the broad spirit and scope of the present invention. The above-described embodiments are for explaining the present invention and do not limit the scope of the present invention. In other words, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

  The present invention can be applied to an electrical connector having a ground member and a ground shell.

  1 Connector Device, 1A Plug Connector, 1B Receptacle Connector, 2 Coaxial Cable, 2a Inner Conductor, 2b Outer Conductor, 3 Circuit Board, 4 Insertion Portion, 5 Locking Portion, 6 Insertion Port, 10 Ground Bar, 11 Ground Shell , 11A 1st shell, 11B 2nd shell, 12 contacts, 13 housing, 20 flat plate portion, 21 connecting portion, 22 abutting portion, 23 through hole, 24 boundary, 30 flat plate portion, 31 connecting portion, 32 bending Part 33 gap part 41 ground shell 42 contact 43 housing

Claims (7)

An electrical connector that mates with a mating connector connected to a circuit board,
A conductive ground member electrically connected to the terminal portions of the outer conductors of the plurality of coaxial cables arranged in a row;
A conductive ground shell that houses the terminal portions of the plurality of coaxial cables and the ground member, and is grounded to the circuit board via a grounding member of the mating connector when fitted with the mating connector;
With
The ground shell is
A first shell having a contact portion that contacts the ground member so as to be solderable;
A second shell provided with a gap that can be filled with solder in the contact portion and welded to the contact portion with the filled solder;
An electrical connector that consists of The gap portion exposes a boundary between the ground member and the first shell in the contact portion,
The electrical connector according to claim 1. The contact portion is formed with a through hole that forms the boundary.
The electrical connector according to claim 2. The contact portion has a plurality of flat plate portions formed to be bent so as to surround the ground member, and the through hole is provided in any flat plate portion,
The second shell has a bent portion along the contact portion, and the gap portion is provided according to the through hole.
The electrical connector according to claim 3. The first shell is provided with a plurality of contact portions in the same direction,
The second shell is provided with a plurality of the gap portions according to the contact portion.
The electrical connector as described in any one of Claim 1 to 4. The abutting portion and the gap portion are provided outside both ends of a plurality of coaxial cable rows,
The electrical connector according to any one of claims 1 to 5. The abutting portion and the gap portion are provided in a portion where a distance between adjacent coaxial cables is wide in the row of the plurality of coaxial cables.
The electrical connector according to claim 6.

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