JP3219381B2 - Electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connector having a conductive shell for shielding and a conductive means for connecting the conductive shell to a printed circuit board.

[0002]

2. Description of the Related Art As a conventional electrical connector of this type, for example, the one shown in FIG. 6 is known (see Japanese Utility Model Registration No. 3035517).

The electrical connector 100 includes an insulating housing 101 on which a large number of contacts 102 are mounted, and a conductive shield shell 103 made of metal, which is placed on the mating surface of the insulating housing 101 with a mating connector 110. are doing.

[0003] At both ends of the electrical connector 100, conductive guide bushes 104 are provided which can be fitted with guide pins 111 provided at both ends of the mating connector 110. The guide bush 104 penetrates through the opening of the conductive mounting panel 106 and the opening of the conductive shell 103 to receive the receiving nut 1 embedded in the insulating housing 101.
07, the insulating housing 101 and the conductive shell 103 are mounted on the mounting panel 106 with the surface on the fitting surface side of the conductive shell 103 contacting the conductive mounting panel 106. The mounting panel 106 includes a step 105 of the guide bush 104 and the conductive shell 103.
Is sandwiched between.

Further, in the electrical connector 100 having the guide bush 104, the contact 102 is inserted into a through hole (not shown) of the printed circuit board 120 and soldered, and the bifurcated connection of the receiving nut 107 is provided. Joint 107
c is engaged and fixed to the side wall of the through hole of the printed circuit board 120. Then, when the electrical connector 100 having the guide bush 104 is mounted on the conductive mounting panel 106 and mounted on the printed circuit board 120, the conductive shell 103 becomes the conductive mounting panel 106, the conductive guide bush 104 and the conductive bush 104. The conductive path is conducted on the printed circuit board 120 via the flat portion 107b of the receiving nut 107.

[0005]

However, in this conventional electrical connector 100, the receiving nut 107 constituting the conducting means is screwed into a male screw portion formed on the outer periphery of the guide bush 104 so as to be internally engaged. A cylindrical screw portion 107a having a female screw portion formed in the periphery; a flat portion 107b which is folded back from the screw portion 107a and a flat portion 107b;
b, a bifurcated engagement portion 10 which is bent downward at a right angle.
7c. Therefore, when the flatness of the flat portion 107b to be folded is not sufficiently high, the contact 102 of the electrical connector 100 is connected to the printed circuit board 1.
At the time of solder connection to the printed circuit board 20, the electric connector 100 may be inclined with respect to the printed circuit board 120, and the solder connection may not be properly performed. If the flatness described above is not sufficiently high, the flat portion 107b of the receiving nut 107 and the conductive path on the printed circuit board 120 may not properly contact with each other. In some cases, conduction to the conductive path on the substrate 120 was not reliably performed.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an electric connection which can properly perform solder connection of a contact to a printed circuit board and can reliably conduct a conductive shell to a conductive path on the printed circuit board. To provide a connector.

[0007]

SUMMARY OF THE INVENTION An electrical connector according to the present invention comprises an insulating housing provided with a number of contacts, a conductive shell for shielding over an upper surface of the insulating housing, and a conductive shell for the conductive shell. Mounting means for mounting the insulating housing and the conductive shell to the mounting panel in a state of being in contact with the mounting panel, and conducting the conductive shell to a conductive path on a printed circuit board via the mounting panel. Means, the conducting means is vertically movably received in an elastic member receiving cavity of the insulating housing, and is held between a lower surface of the mounting panel and a conductive path of the printed circuit board. And a conductive elastic member elastically contacting both the lower surface of the mounting panel and the conductive path of the printed circuit board. It is characterized in that there.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a main part in a state where a mating connector is fitted to the electric connector of the present invention. FIG. 2 is a partial plan view of the electrical connector shown in FIG. However, the guide bush is indicated by a chain line. FIG.
FIG. 3 is a partial cross-sectional view along line 3, showing a state where the electrical connector is mounted on a printed circuit board. FIG. 4 is a partial cross-sectional view taken along line 4-4 of FIG. 2, showing a state where the electrical connector is mounted on a printed circuit board.
FIG. 5 is a partial plan view of a conductive shell constituting the electrical connector shown in FIG.

In FIG. 1 to FIG.
Is an insulating housing 10 provided with a plurality of rows of contacts 11, a conductive shell 20 for shielding over an upper surface 14 of the insulating housing 10, and a conductive shell 20.
Mounting means 40 for mounting the insulating housing 10 and the conductive shell 20 to the mounting panel 30 while the conductive shell 20 is in contact with the conductive mounting panel 30; And a conducting means (elastic member) 60 for conducting to a road (not shown).

The insulating housing 10 is formed of a substantially rectangular parallelepiped formed in a longitudinal direction and formed by molding a resin material.
0 through hole 12 through which guide bush 41 constituting
An elastic member accommodating cavity 13 that accommodates the elastic member 60 is provided adjacent to the through hole 12 (only one end is shown in FIGS. 2 and 3). The through-hole 12 is a circular hole having a circular cross section penetrating from the upper surface 14 to the lower surface 15 of the insulating housing 10. Also, the elastic member receiving cavity 13
Has an opening 16 having a substantially rectangular cross section extending in the longitudinal direction and opening in the upper surface 14 of the insulating housing 10, and has a through hole 18 formed in a bottom wall 17 thereof.

The conductive shell 20 is formed by drawing, punching and bending a metal plate, and has a substantially rectangular flat plate portion 21 extending in the longitudinal direction.
A fitting portion 22 with a mating connector 70 extending upward (upward in FIG. 3) from the flat plate portion 21;
And locking portions 23 that are bent downward from both sides in a direction orthogonal to the longitudinal direction and that are locked at the locking projections 19 of the insulating housing 10. Further, at both ends in the longitudinal direction of the flat plate portion 21 of the conductive shell 20, circular openings 24 through which the guide bush 41 is inserted are provided.
And a notch 25 continuous with the opening 24. The notch 25 extends from the opening 24 in a direction orthogonal to the longitudinal direction of the flat plate portion 21, and the upper protrusion 69 of the elastic member 60 projects upward from the notch 25.

Further, the mounting means 40 includes a mating connector 70
And a conductive guide bush 41 that can be fitted to the guide posts 71 provided at both ends of the
And a receiving nut 44 screwed and fixed to the threaded portion 42 of the guide bush 41 embedded therein by insert molding. When the guide bush 41 is screwed and fixed to the receiving nut 44, the mounting panel 3 is positioned between the upper surface of the flat portion 21 of the conductive shell 20 and the step 45 of the guide bush 41.
0 is sandwiched, and the printed circuit board 50 is sandwiched between the lower surface 15 of the insulating housing 10 and the upper surface 46 of the insulating housing 43.

The elastic member 60 is formed by stamping a metal plate. The elastic member 60 has a straight first arm 61 and a curved portion 62 having a small radius from one end of the first arm 61. A linear second arm 63 that rises,
The third arm 65 linearly rises from the other end of the first arm 61 via the curved portion 64 having a large radius, and the second arm 65 extends from the distal end of the third arm 65 via a curved portion 66 having a large radius.
A fourth arm portion 67 extending toward the arm portion 63 is provided. A lower projection 68 extending downward is formed at a substantially central portion of the first arm portion 61 to project therefrom.
7 and on the same center line as the lower protrusion 68,
An upper protrusion 69 extending upward is formed so as to protrude.

Next, the insulating housing 10 and the conductive shell 20 are attached to the mounting panel 30, and the conductive shell 20 is connected to the printed circuit board 50 via the mounting panel 30.
FIG. 1 shows a method of conducting to the upper conductive path (not shown).
This will be described with reference to FIGS.

First, the elastic member 60 is accommodated in the elastic member accommodating cavity 13 from the opening 16 side of the elastic member accommodating chamber cavity 13 of the insulating housing 10, and then the conductive shell 20 is insulated from the upper surface 14 side of the insulating housing 10. The engaging portion 23 of the conductive shell 20 is engaged with the engaging protrusion 19 of the insulating housing 10 while being put on the housing 10. In this state, the elastic member 60 is vertically movable within the elastic member receiving cavity 13 and the lower protrusion 68 is vertically movable within the through hole 18 formed in the bottom wall 17 of the insulating housing 10. The upper protrusion 69 is located in the notch 25 of the conductive shell 20 so as to be vertically movable. In this state, since the first arm portion 61 of the elastic member 60 rests on the bottom wall 17 of the elastic member housing cavity 13, the elastic member 60 does not fall below the insulating housing 10. Further, even if the elastic member 60 is moved upward, the second arm portion 67 abuts on the lower surface of the flat portion 21 of the conductive shell 20, so that the elastic member 60 does not come off above the insulating housing 10. Further, the second arm portion 63 and the third arm portion 65 of the elastic member 60 are located away from the side walls 13a and 13b of the elastic member housing cavity 13, respectively.

Next, as shown in FIGS. 3 and 4, the insulating housing 10 containing the elastic member 60 and the conductive shell 20 are aligned and mounted on the printed circuit board 50, and are placed on the insulating housing 10. The provided plurality of contacts 11 are soldered to the printed circuit board 50. The contact 11 may be a surface mount type or a board penetrating wall. The insulating housing 10 is connected to the printed circuit board 5
3 and 4, the lower projection 68 of the elastic member 60 is in contact with the conductive path on the printed circuit board 50, and the upper projection 69 is the conductive shell. The elastic member 6 protrudes upward from the notch 25 of the elastic member 6.
0 is moving upward as a whole. In this state, the elastic force of the elastic member 60 does not act on the printed circuit board 50. Therefore, when the contact 1 is soldered, the elastic force of the elastic member 60 causes the insulating housing 10 to be connected.
Since the contact 11 does not float from the printed circuit board 50, the contacts 11 can be smoothly and appropriately soldered to the printed circuit board 50.

As shown in FIG. 1, the insulating housing 10 and the conductive shell 20 mounted on the printed circuit board 50 are connected to the upper surface 46 of the insulating casing 43 such as a personal computer and the lower surface of the conductive mounting panel 30. 32, and the guide bush 41 is inserted into the opening 31 of the mounting panel 30,
Circular opening 24 in conductive shell 20, insulating housing 10
Through an opening 51 of the printed circuit board 50 and a receiving nut 44 embedded in the insulating casing 43. Thereby, the insulating housing 10 and the conductive shell 20 are attached to the mounting panel 30, and the conductive shell 20 is electrically connected to the conductive path on the printed circuit board 50 via the mounting panel 30 and the elastic member 60. At this time, the upper surface of the flat portion 21 of the conductive shell 20 contacts the lower surface 32 of the conductive mounting panel 30, and the upper protrusion 68 of the conductive elastic member 60 makes elastic contact with the lower surface 32 of the mounting panel 30. Then, the lower protrusion 69 of the elastic member 60 elastically contacts the conductive path on the printed circuit board 50. Therefore, the elastic member 60 is sandwiched between the lower surface 32 of the mounting panel 30 and the conductive path of the printed circuit board 50 and elastically contacts both the lower surface 32 of the mounting panel 30 and the conductive path of the printed circuit board 50. Conduction of the conductive shell 20 to the conductive path of the printed circuit board 50 can be reliably performed. In a state where the elastic member 60 is accommodated in the elastic member accommodating cavity 13 of the insulating housing 10, each of the second arm 63 and the third arm 65 is separated from the side walls 13a and 13b of the elastic member accommodating cavity 13. When the upper projection 69 elastically contacts the lower surface 32 of the mounting panel 30 and the lower projection 68 elastically contacts the conductive path on the printed circuit board 50, the third arm 6
5 can be easily deformed outward.

[0018]

According to the electrical connector of the first aspect,
Since the conducting means for conducting the conductive shell to the conductive path on the printed circuit board via the mounting panel is constituted by a conductive elastic member which is vertically movably received in the elastic member receiving cavity of the insulating housing. When the insulating housing is placed on the printed circuit board, the elastic member moves upward while being in contact with the conductive path on the printed circuit board, and the elastic force of the elastic member does not act on the printed circuit board. . Therefore, at the time of the solder connection provided on the insulating housing, the insulating housing does not float from the printed circuit board due to the elastic force of the elastic member, and the contact can be smoothly and appropriately connected to the printed circuit board by soldering. Further, the elastic member is sandwiched between the lower surface of the mounting panel and the conductive path of the printed circuit board and elastically contacts both the lower surface of the mounting panel and the conductive path of the printed circuit board. The conduction of the shell to the conductive path of the printed circuit board can be reliably performed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part in a state where a mating connector is fitted to an electric connector of the present invention.

FIG. 2 is a partial plan view of the electrical connector shown in FIG.
However, the guide bush is indicated by a chain line.

FIG. 3 is a partial cross-sectional view taken along line 3-3 of FIG. 2, showing a state where the electrical connector is mounted on a printed circuit board.

FIG. 4 is a partial cross-sectional view taken along line 4-4 of FIG. 2, showing a state where the electrical connector is mounted on a printed circuit board.

FIG. 5 is a partial plan view of a conductive shell constituting the electrical connector shown in FIG. 1;

6A and 6B show a conventional electrical connector, in which FIG. 6A is a partial plan view and FIG. 6B is a sectional view of a main part.

[Description of sign]

 REFERENCE SIGNS LIST 1 electrical connector 10 insulating housing 11 contact 13 elastic member receiving cavity 14 upper surface of insulating housing 20 conductive shell 30 mounting panel 32 lower surface of mounting panel 40 mounting means 50 printed circuit board 60 elastic member (conductive means)

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 13/648 H01R 12/22 H01R 24/08

Claims (1)

(57) [Claims] An insulating housing provided with a plurality of contacts; a conductive shell for shielding provided on an upper surface of the insulating housing; and the insulating shell in a state where the conductive shell is in contact with a conductive mounting panel. An electrical connector comprising: mounting means for mounting a housing and the conductive shell to the mounting panel; and conductive means for connecting the conductive shell to a conductive path on a printed circuit board via the mounting panel. Are vertically movably accommodated in an elastic member accommodating cavity of the insulating housing, and are sandwiched between a lower surface of the mounting panel and a conductive path of the printed circuit board, and a lower surface of the mounting panel and the printed circuit board. An electrical connector comprising a conductive elastic member elastically contacting both of the conductive paths.