JP2000133391A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve mechanical strength of a shield member without increasing plate thickness by forming a fit-inserting hole at a substantially central portion of a front surface of a housing, forming an insert tongue piece in a shield member at a position facing the fit-inserting hole, fit-inserting the insert tongue piece into the fit-inserting hole when mounting the shield member to the housing, and engaging the housing with the shield member. SOLUTION: An electric connector 20 fastens the upper and lower parts of the central part of the front surface 3a of a housing with the upper and lower parts of the central part of a metallic shield member 4 at positions facing the upper and lower parts of the central part of the front surface 3a via connecting means comprising fit-inserting holes 21. An insert tongue piece 22 with tip bent in a substantially L-shape is integrally formed with the metallic shield member 4 at positions facing the fit-inserting hole 21. When the metallic shield member 4 having the insert tongue piece 22 is fit-inserted into the housing having the fit-inserting hole 21, the insert tongue piece 22 is fit-attached with the inside of the fit-inserting hole 21 facing it, therefore, the metallic shield member 4 and the housing are strongly locked with each other in a front central portion to increase mechanical strength.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connector for connecting a board to a board or a board and a cable, and more particularly to an electrical connector having a function of preventing a connection portion from being damaged by electromagnetic waves.

[0002]

2. Description of the Related Art Conventionally, an electrical connector has been used as an apparatus for electrically connecting a board to a board or a board to a cable in an electronic device such as a computer.

As shown in a conceptual plan view of FIG. 11 and a front view of the conventional electrical connector 1 shown in FIG. 11, a plurality of contacts 2 (male contacts) are provided therein at a predetermined pitch.
, And a metal such as aluminum wound around guide bars 3b and 3c of the housing 3 surrounding the front 3a (FIG. 12) side of the housing 3. And a shield member 4 made of a plate.

When the electric connector 1 is mounted on a board (not shown), one end of the shield member 4 is connected to an earth line of the board. As shown in FIG. 12, male contacts 2 for fitting female contacts (not shown) are arranged on the front surface 3a of the housing 3 at a predetermined pitch.

FIG. 13 is an enlarged sectional view taken along the line AA of FIG.

[0006]

According to the conventional electric connector 1 described above, the shield member 4 is formed as shown in FIG.
As shown in the figure, since only the guide bars 3b and 3c are wound around the front surface 3a of the housing 3, the male contacts are provided in the female contacts formed on the substrate or the cable (not shown). 2 into the electrical connector 1
When inserted into the metal shield member 4 as shown in FIG. 14, the force acting from the inside at the time of insertion causes the force F
And the metal shield member 4 is bent and deformed, and the contact between the metal shield member on the female contact side and the metal shield member 4 of the electrical connector 1 becomes unstable,
There has been a problem that electromagnetic wave interference tends to occur from that part.

In order to solve the above-mentioned problems, it is considered that the thickness of the metal shield member 4 is set to be large to improve the mechanical strength of the metal shield member 4. In many cases, the above-described electric connector 1 is attached to a thin electronic device such as a notebook personal computer. There are circumstances where it is not possible to set the thickness etc. thick.

An object of the present invention is to provide an electrical connector in which the mechanical strength of a metal shield member is improved without increasing the thickness or the like in view of the above-mentioned circumstances.

[0009]

In order to solve the above-mentioned problems, according to the present invention, a housing in which a plurality of contacts are juxtaposed, and a metal shield mounted around the front surface of the housing are provided. In the electrical connector having at least a member, an insertion hole is formed at a substantially central portion of the front surface of the housing, and an insertion tongue is formed in the shield member at a position facing the insertion hole, and When mounted on the housing, the insertion tongue is inserted into the insertion hole, so that the housing and the shield member are engaged with each other.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the electric connector according to the present invention will be described in detail.

FIGS. 1 and 2 are a plan view and a front view of an electric connector 20 according to the present invention, and the same parts as those in FIGS.

In this electric connector 20, the housing 3
The upper and lower portions of the central portion of the metal shield member 4 at positions opposed to the upper and lower portions of the front surface 3a of the front surface 3a and the upper and lower portions of the front portion 3a are fastened to each other via the connecting means 30.

As shown in FIG. 3 which is a plan view of the housing 3 excluding the contacts 2 and FIG. 4 which is a front view thereof, the connecting means 30 is provided at positions adjacent to the upper and lower surfaces 3a of the housing 3 respectively. Fitted insertion hole 21 formed at each location
It is composed of

FIG. 5 is an enlarged sectional view taken along the line BB of FIG. 4, and the fitting hole 21 is formed from the front surface 3a of the housing 3 to the right in the drawing. In FIG. 4, reference numeral 3d denotes a fitting hole into which the contact 2 is fitted.

On the other hand, as shown in FIG. 8 which is a plan view of FIG. 6, a front view of FIG. 7, and a CC enlarged sectional view of FIG.
An insertion tongue piece 22 having a distal end bent into a substantially L-shape is integrally formed at a position facing the insertion hole 21.

Next, as shown by an arrow D in FIG. 9, when the shield member 4 having the insertion tongue piece 22 is inserted into the housing 3 having the insertion hole 21 as shown in FIG. Since the fitting 22 is fitted into the facing insertion hole 21 of the housing 3, the shield member 4 and the housing 3 are firmly engaged with each other at the front center.

After the insertion tongue piece 22 is fitted into the facing insertion hole 21 in this way, as shown in FIG. 2, the male contact 2 is inserted into a female contact formed on a board or cable (not shown). A metal shield member (not shown) on the female contact side is inserted into the metal shield member 4 of the electrical connector 1 for insertion, and at this time, the metal shield member 4 is moved upward and downward as indicated by arrows. Even when the force F is applied, the metal shield member 4 is firmly engaged with the housing 3 by the fitting tongue piece 22 fitted in the fitting hole 21 to increase its mechanical strength. The central part of the shield member 4 is prevented from being deformed by the force F as much as possible.
Instability of the contact with the shield member 4 is prevented as much as possible, and stable electrical contact is maintained.

In the above embodiment, the insertion tongue piece 22 and the insertion hole 21 are respectively formed at two positions in the upper and lower centers when viewed from the upper surface 3a of the housing 3, but the present invention is not limited to the above embodiment. There is no limitation, and one or more upper and lower portions may be formed, and the number is not limited.

In the above embodiment, the insertion tongue 22 and the insertion hole 21 described above are formed in the housing 3 and the metal shield member 4 of the electrical connector 20 having the male contact 2. Without being limited to the above-described embodiment, the above-described insertion tongue piece 22 and the insertion hole 21 may be formed in the housing of the electrical connector having the female contact and the metal shield member.

[0020]

As described above, according to the electrical connector of the present invention, the insertion hole is formed in the front of the housing, and the insertion tongue piece is formed in the shield member at a position facing the insertion hole. When the member is mounted on the housing, the insertion tongue of the shield member is inserted into the insertion hole of the housing to engage with each other, thereby improving the mechanical strength of the shield member. When the contacts are connected, deformation of the shield member due to the force acting from the inside of the shield member can be prevented as much as possible, so that stable electrical contact between the shield members is maintained and electromagnetic interference is prevented. It is possible to provide an electrical connector which is hard to receive.

Further, since the insertion tongue is formed to have a substantially L-shaped cross section, it is not necessary to make the outer shape of the housing larger than the outer shape of the shield member when the insertion tongue is inserted into the insertion hole. An electrical connector having a reduced height can be provided without increasing the vertical width of the housing and the shield member.

[Brief description of the drawings]

FIG. 1 is a plan view of an electrical connector according to the present invention.

FIG. 2 is a front view of the electrical connector according to the present invention.

FIG. 3 is a plan view of a housing of the electrical connector according to the present invention.

FIG. 4 is a front view of a housing of the electric connector according to the present invention.

FIG. 5 is an enlarged sectional view taken along the line BB of FIG. 4;

FIG. 6 is a plan view of a shield member of the electrical connector according to the present invention.

FIG. 7 is a front view of a shield member of the electrical connector according to the present invention.

FIG. 8 is an enlarged sectional view of CC in FIG. 7;

FIG. 9 is a conceptual enlarged cross-sectional view showing a state where a shield member is mounted on a housing of the electrical connector according to the present invention.

FIG. 10 is a conceptual enlarged sectional view showing a state in which a shield member is mounted on a housing of the electric connector according to the present invention.

FIG. 11 is a plan view showing a conventional electric connector.

FIG. 12 is a front view of a conventional electrical connector.

FIG. 13 is an AA concept enlarged sectional view of FIG. 12;

FIG. 14 is a front view of a conventional electrical connector showing a state where a shield member is deformed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 ... Contact 3 ... Housing 4 ... Shield member 20 ... Electric connector 21 ... Fit insertion hole 22 ... Insertion tongue piece

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 29, 1998 (1998.10.
29)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

FIG. 5

FIG. 6

FIG. 8

FIG. 13

FIG. 7

FIG. 9

FIG. 10

FIG. 11

FIG.

FIG. 14

Claims (2)

[Claims] 1. An electrical connector having at least a housing in which a plurality of contacts are juxtaposed therein and a metallic shield member mounted so as to surround a front surface of the housing. Forming an insertion hole in the shield member at a position opposed to the insertion hole, and forming the insertion tongue in the insertion hole when the shield member is mounted on the housing. Wherein the housing and the shield member are engaged with each other. 2. The insertion hole is formed in at least two places substantially at the center of the front surface of the housing, and the insertion tongue formed on the shield member at an opposing position is formed to have a substantially L-shaped cross section. Claim (2)
Electrical connector as described.