JP3379877B2 - Connector for two-stage connection board - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-stage connection connector for an interface used when electrically connecting a personal computer (hereinafter, personal computer) compatible with multimedia and an external device with a cable. .

[0002]

2. Description of the Related Art In recent years, in order to cope with the multimedia of personal computers, which have been remarkably miniaturized and increased in speed, comparatively low speed peripheral devices such as a keyboard, a mouse, a microphone, a speaker, a modem and a printer are commonly used as a common connector. It is known to connect to a personal computer etc. with a cable.

As such a serial bus, the USB standard (medium / low speed serial bus) has been proposed, and a connector used for this is a 4-core type (signal + power source) connector, which is a metal contact such as phosphor bronze. It is known that one is arranged in one line and one is arranged in two lines.

As shown in FIG. 14, the conventional structure of the four-core type two-row connector has a four-core contact 1 with a long leg on the upper stage side and a four-core contact 2 with a short leg on the lower stage side, as shown in FIG.
An insulator 3 made of synthetic resin for inserting and holding the contacts 1 and 2 in upper and lower stages, and an auxiliary sandwiched between an upper surface and a lower surface of a central separating portion 3a for vertically dividing the contacts of the insulator 3 It is composed of a spring 4 and a metal shell 5 which is entirely rectangular and has front ends open at both ends and which houses the insulator 3 almost entirely inside from the opening on one end side thereof.

Then, the conventional connector 6 is inserted into a hole on a printed circuit board in a personal computer and soldered,
For example, it is connected to a male connector of a printer cable.

[0006]

However, in the conventional USB standard connector 6, the shell 5 is a rectangular body, and an elastic member is provided on one side of each of the upper and lower two-stage male connectors of the cable to be inserted. Since the auxiliary spring 4 for contacting and holding is required, the number of parts increases, the manufacturing cost of the connector 6 increases, and there is a problem that parts management and assembly man-hours are required.

Further, since the shell 5 of the connector 6 is not provided with a portion for grounding, the legs of the shell 5 are inserted into the holes of the printed circuit board and connected to the grounding circuit, from which the lead wires are connected to the panel of the personal computer. Since it was grounded by screwing it on, there is a problem that it takes time to ground.

As described above, the conventional 4-core type two-stage connection board connector compatible with the USB standard has problems to be solved in the increase of the number of parts and the method of grounding.

[0009]

SUMMARY OF THE INVENTION A gist of the connector for a two-stage connection board according to the present invention to solve the above-mentioned problems is to provide a contact accommodating portion in which a housing body is divided into an upper stage and a lower stage and both ends are open. And an insulating housing for accommodating contacts that come into contact with the contacts of the mating connector from the one end side of the upper and lower contact accommodating portions and holding them in parallel, and a contact accommodating portion of the insulating housing. A contact to be inserted and an opening into which the mating contact is inserted into the contact accommodating portion, and surrounds at least the contact portions of the upper and lower contacts that are accommodated in the contact accommodating portion. Ri Do and a shell formed integrally surrounding portion via the connecting portion, the shell
Ground piece that contacts the panel of the device body from the outer periphery of the
Has been extended .

Further, the ground consisting of a main body detachably fitted to electrical communication with the shell on an outer peripheral portion of the shell, the ground member in contact with the panel of the main body is extended from a portion of the body It is to install the mounting bracket for.

According to the connector for a two-stage connection board according to the present invention, the conventional two-stage connection board connector is formed by the shell integrally formed with the surrounding portions surrounding the upper and lower contact housings of the insulating housing. The necessary auxiliary springs are omitted, the number of parts that make up the shell is reduced, and a grounding piece that comes into contact with the panel of the device body or a grounding metal fitting is provided to easily ground the grounding. You will be able to take it.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a connector for a two-stage connection board according to the present invention will be described in detail with reference to the drawings. The two-stage connection board connector 6A according to the first embodiment of the present invention includes an insulating housing 10 as shown in FIG.
And female contacts 1 and 2 arranged in the insulating housing 10, and a shell 11 for accommodating the insulating housing 10.
And a grounding metal fitting 12 which is detachably fitted to the shell 11 and grounds.

The respective details of the above construction will be described in order. First, the contacts 1 and 2 are L-shaped female contacts bent substantially at right angles, and are inserted into a through hole of a printed circuit board on which a connector is mounted and soldered. The legs 1a and 2a formed are formed such that the contact 1 is longer and the contact 2 is shorter.

In the contact portions 1b and 2b of the contacts 1 and 2 which come into contact with the mating male contacts, the contact 1 is longer on the rear end side when the front ends are combined. Each contact 1, 2 is 4 for 4 cores
Individually prepared.

As shown in FIG. 2, the insulating housing 10 is divided into a housing main body 10a made of synthetic resin into upper and lower stages by a central separating portion 10b. Of these, contact housing portions 10e and 10f are provided, the other end side of which is entirely opened, and the one end side of which is opened via four contact insertion holes 10c and 10d which are formed in parallel.

Then, the female contacts 1 and 2 which come into contact with the male contacts of the mating male connector are contacted in the contact receiving portions 10e and 10f at the upper and lower stages from the contact insertion holes 10c and 10d at one end side thereof. The tip portions of the contact portions 1b and 2b are inserted, housed and held in parallel. In addition, a recessed groove 10g used to prevent the shell 11 from coming off is provided on both side wall surfaces of the housing body 10a.

The shell 11 is made of, for example, a metal of copper alloy, and is for surrounding the entire insulating housing 10 to shield the contact portions 1b and 2b.

As shown in FIGS. 3 to 5, the structure of the shell 11 is such that the mating male contact connected to the two-stage connecting board connector 6A is replaced by the contact housing portion 10e of the insulating housing 10. , 10f, the upper and lower openings 11a and 11b are formed in a rectangular shape.

The openings 11a and 11b are provided in the shell 11
It is formed by surrounding portions 11c and 11d formed by winding in the left-right direction and the up-down direction except the front-back direction. Further, leaf springs 13 to 18 and leaf springs 19 to 24 that hold the housing of the mating male connector by elastic force are provided on the wall surfaces of the surrounding portions 11c and 11d, respectively.

As shown in FIG. 4, an extending portion 11e as an upper wall surface is provided behind the upper wall surface of the surrounding portion 11c on the upper stage side of the shell 11, and the extending portion 11e is hung from the left end portion thereof. Left side wall surface 11f is provided, while
A right wall surface 11g is provided so as to hang down from the right end of the extending portion 11e.

A connecting portion 11h extends from the lower side edge of the left side wall surface 11f toward the lower side wall surface of the lower side surrounding portion 11d, and connects the left side wall surface 11f and the surrounding portion 11d. Therefore, the upper-side surrounding portion 11c and the lower-side surrounding portion 11d are connected through the extending portion 11e and the connecting portion 11h, and are integrally formed.

Mounting leg portions 11i, 11j are provided from the lower end portion of the left side wall surface 11f to be inserted into the through holes of the printed board and soldered.

Further, in the rear of the lower side surrounding portion 11d,
As shown in FIG. 3B, the right side wall surface 11m is extended,
Further, mounting leg portions 11i and 11j are provided from the lower end portion of the right side wall surface 11m in symmetry with the mounting leg portion on the left side wall surface.

The right side wall surfaces 11g and 11m are the shell 1
The right wall surface of No. 1 is opposed to each other and is not continuous. The right side wall surfaces 11g, 11m and the left side wall surface 11f have locking plates 25, 26 bent toward the inside of the shell.
27 and 28 are provided for abutting against the side wall of the housing body 10a of the insulating housing 10 fitted in the shell 11 so as to be sandwiched from both sides.

The structure of the shell 11 has been described. For the shell 11, for example, as shown in FIG. 6, a thin metal plate having a shape in which the shell 11 is developed in a plane is die-cut along a solid line to form a folding line. A desired portion is formed by bending in a mountain fold or a valley fold along the (shaded portion in the drawing).

Next, as shown in FIGS. 7 to 8, the grounding fitting 12 is such that the fitting body 12a has the shell 11
Is formed in a substantially U shape so as to cover the extended portion 11e as the upper wall surface, the left wall surface 11f, and the right wall surfaces 11g, 11m, and extends forward from the upper wall surface and the left and right side wall surfaces of the metal fitting body 12a. Ground members 12b, 12c, 12d are provided and bent outward in the orthogonal direction.

Screw portions 29, 30 and 31 are provided at substantially central portions of the earth members 12b, 12c and 12d, respectively. The screw portions 29, 30, 31 correspond to the screw holes on the panel of the device body.

The right and left side wall surfaces of the metal fitting body 12a are locking portions 12e, 1 which serve as locking means for preventing the shell 11 from slipping out backward when the shell 11 is covered with the ground mounting metal fitting 12.
2f is provided so as to be bent inward. In addition, the lower end portion thereof has cutout portions 11 on the left and right side wall surfaces of the shell 11.
n, 11p (see FIG. 3 (b) and FIG. 4 (b)), and a locking portion 12 that locks by locking upwards.
g and 12h are provided so as to be bent inward, and leg portions 12i and 12j to be inserted into the through holes of the printed circuit board are provided.

As described above, the contacts 1 and 2, the insulating housing 10, the shell 11, and the grounding fitting 12 which are the components of the connector 6A for the two-stage connection board of the first embodiment are formed. 1, as shown in FIG. 1, from the rear of the insulating housing 10 toward the front, the contacts 1,
Four pieces of 2 are arranged side by side and inserted into the upper and lower contact storage parts, the insulating housing 10 is fitted from the rear of the shell 11, and further, the ground mounting bracket 12 is attached to the shell 11 from the rear. As a result, as shown in FIG. 9, the two-stage connecting board connector 6A is completed.

The connector 6A for the two-stage connection board is attached to the through-holes of the printed board in the mounting legs 11i, 1 of the shell 11.
1j and the leg portions 12i, 12j of the ground mounting bracket 12 are inserted and soldered to mount the two-stage connecting board connector 6A on the printed board, and three holes on the panel side of the device body. The grounding member 1 of the grounding mounting bracket 12 is obtained by inserting a screw from the above and screwing it into the screw parts 29, 30, 31 of the grounding mounting bracket 12, respectively.
The panel of the device body can be grounded via 2b, 12c and 12d.

The second embodiment of the present invention uses a modification of the shell 11 in the two-stage connection board connector 6A as shown in FIG. 10. The shell 32 according to this modification is an insulating housing. 10 contact compartments
The surrounding portions 32a and 32b surrounding the e and 10f, respectively, via the side wall surfaces 32c and 32d in front of the shell 32,
It is formed by punching and bending an integrally formed thin metal plate.

A plan development view of the shell 32 is shown in FIG. In this plan development view, the outline and solid lines of the shell 32 are cutting lines, and the dotted lines are broken lines. As described above, the connecting portion for integrally forming the upper and lower two-stage surrounding portions 32a, 32b is provided with the front side wall surface 32c,
It may be 32d. This shell 32
As is clear from a comparison with the plan development view of the shell 11, the shells are arranged in a rectangular shape, the die is downsized, the manufacturing cost is reduced, and the yield of the metal thin plate to be die-cut is reduced. It's good.

As described above, according to the first and second embodiments, in the shell 11 or the shell 32, the upper and lower contact housing portions 10e of the insulating housing 10 are provided.
The upper and lower surrounding portions of both surrounding portions 11c and 11d or both surrounding portions 32a and 32b surrounding 10f are connected portions 11h (in the shell 32, a side wall surface 32 which is a connecting portion).
Since it is integrally formed via the c and 32d), the trouble of forming a conventional auxiliary spring as a separate component and incorporating it into the shell can be omitted by the shell 11 or the shell 32 of the present invention.

In the third embodiment of the present invention, as shown in FIG. 12, an upper surrounding portion 33a and a lower surrounding portion 33b of the shell are provided.
On the front side of, the shell 33 is formed by extending the ground pieces 33c and 33d from both ends of the side wall surface of the surrounding portion 33a to both ends of the side wall surface of the surrounding portion 33b.
The connector for a step connection substrate is assembled.

The tips of the earth pieces 33c and 33d are
By mounting the printed circuit board on which the two-stage connection board connector is mounted on the device body, the printed circuit board is elastically abutted on the panel of the device body to be electrically connected and grounded. As a result, since the shell itself is provided with the grounding piece, the grounding metal fitting 12 in the first and second embodiments is not required, and the number of parts for assembling the two-stage connecting board connector is reduced.

As shown in FIG. 13, the fourth embodiment of the present invention is another embodiment relating to the ground mounting bracket 12 in the first embodiment, and the ground mounting bracket 34 is formed into a substantially U shape. On both front sides of the formed metal fitting body 34a,
The grounding members 34b and 34c are provided. In addition,
For attaching to the shell 11 and for mounting on the printed circuit board, locking portions 34d and 34e serving as locking means for preventing backward slippage and cutout portions 11n and 11p (left and right side wall surfaces of the shell 11). Legs to be inserted into the through holes of the printed circuit board, provided with locking portions 34f and 34g that are inserted in FIG. 3B and FIG. Parts 34h and 34i are provided.

By mounting the earth mounting bracket 34 on the outer peripheral portion of the shell of the two-stage connecting board connector, when the two-stage connecting board connector is mounted on the printed circuit board and attached to the main body of the device, the earth mounting piece is attached. The tips of the grounding members 34b and 34c of the metal fitting 34 elastically abut the panel of the device body, and the shell of the connector for the two-stage connection board and the panel of the device body are electrically connected to each other for grounding. It is a thing.

[0038]

As described above, in the connector for a two-stage connection board according to the present invention, the insulating housing, the contacts respectively arranged in the contact housing portions of the insulating housing, and the contact on the mating side are the contacts. A shell having at least an opening for insertion into the housing, and integrally forming surrounding portions surrounding at least the contact portions of the upper and lower contacts, which are housed in the contact housing, respectively, via a connecting portion. Tona is, before
From the outer periphery of the shell, touch the panel that contacts the device body.
Since the base piece is extended, the contacts arranged in parallel in two stages can be surrounded by the shell to be shielded, and separate parts such as auxiliary springs are not required, and the number of parts is reduced and parts management is easy. As a result, the assembly cost is reduced and the outside of the shell
Extend a grounding piece that contacts the panel of the device body from the periphery
By doing so, you can easily ground the equipment.
It is intended to achieve the excellent effect say that.

[0039]

Further, for earthing, it comprises a main body which is detachably fitted to the outer peripheral portion of the shell and electrically conducts with the shell, and a grounding member which extends from a part of the main body and contacts the panel of the equipment main body. By providing the mounting bracket, when the earth piece cannot be extended from the shell itself, it is possible to flexibly take the earth according to the convenience of the panel of the device body, which is an excellent effect. .

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a two-stage connection board connector 6A according to a first embodiment of the present invention.

FIG. 2 is a left side view (a), a front view (b), a right side view (c), and an AA line of the insulating housing 10 in the two-stage connection board connector 6A of the first embodiment. It is a sectional view (d).

FIG. 3 is a left side view (a) and a front view (b) of the shell 11 in the two-stage connection board connector 6A of the first embodiment.

FIG. 4 is a plan view (a) and a cross-sectional view (b) taken along line C-C in the plan view of the shell 11 of the two-stage connection board connector 6A of the first embodiment.

5 is a half cross-sectional view taken along the line BB in FIG.

FIG. 6 is a plan development view of the shell 11 in the two-stage connection board connector 6A of the first embodiment.

FIG. 7 is a left side view (a) and a front view (b) of the ground mounting bracket 12 in the two-stage connection board connector 6A of the first embodiment.

FIG. 8 is a plan view showing a part of a grounding fitting 12 in a two-stage connection board connector 6A of the first embodiment in a cutaway manner.

FIG. 9 is a left side view (a) and a front view (b) of the two-stage connection board connector of the first embodiment.

FIG. 10 is a perspective view of a shell 32 of a two-stage connection board connector according to a second embodiment of the present invention.

FIG. 11 is a plan development view of the shell 32.

FIG. 12 is a perspective view of a shell 33 of a two-stage connection board connector according to a third embodiment of the present invention.

FIG. 13 is a perspective view of a grounding fitting 34 of a connector for a two-stage connecting board according to a fourth embodiment of the present invention.

FIG. 14 is an exploded perspective view of a connector for a two-stage connection board according to a conventional example.

[Explanation of reference numerals] 1, 2 contacts, 6A connector for two-stage connection board,
10 Insulating housing, 10a Housing body, 10
b central separation part, 10c, 10d contact insertion hole,
10e, 10f Contact storage portion, 10g concave groove, 1
1 shell, 11a, 11b opening, 11c, 11d
Surrounding part, 11e extension part, 11f left wall surface, 11g
Right wall surface, 11h connecting portion, 11i, 11j mounting leg portion, 11m right wall surface, 11n, 11p cutout portion, 1
2 Grounding metal fittings, 12a Metal fitting body, 12b, 1
2c, 12d grounding member, 13-24 leaf spring, 2
5 to 28 Locking plate, 29, 30, 31 Screw part, 32
Shell, 32a, 32b Surrounding part, 32c, 32d Side wall surface, 33 Shell, 33a, 33b Surrounding part, 33
c, 33d grounding piece, 34 grounding metal fitting, 34
a metal fitting body, 34b, 34c ground member, 34d,
34e locking part, 34f, 34g locking part.

Claims (2)

(57) [Claims] 1. A housing body is provided with a contact storage portion which is divided into an upper stage and a lower stage and is open at both end sides, and a contact which comes into contact with a contact of a mating connector is provided at one end of each of the upper and lower contact storage portions. An insulating housing that receives each of them from the side and holds them side by side; a contact that is respectively disposed in a contact storage portion of the insulating housing; and an opening that inserts the mating contact into the contact storage portion, Ri Do and a shell formed integrally at least the surrounding portion which surrounds each of the periphery of the contact portion housed in the contact housing portion via the connecting portion in the upper and lower contacts, from the outer periphery of the shell, Touch the device panel
A two-stage connection board connector, characterized in that an earth piece is extended . 2. A grounding body comprising a main body which is detachably fitted to the outer peripheral portion of the shell and electrically conducts to the shell, and a grounding member which extends from a part of the main body and comes into contact with a panel of the equipment main body. The two-stage connection board connector according to claim 1, further comprising a mounting bracket.