JP2002373738A - Shielded connector with insertion guide - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shielded connector with an insertion guide capable of reducing a manufacturing cost by forming a structure easy to miniaturize as a whole and by reducing the number of component items. SOLUTION: This connector is provided with a second connector 20 equipped with a cylindrical female shield shell 21, a first connector 10 equipped with a male shield shell 11 fitted by insertion into the shield shell 21, and the insertion guide G for the shield shell 11 to the shield shell 21. The insertion guide G is provided with a guide projection 12 formed on the shield shell 11, and a housing recessed part 22 for housing the guide projection 12 formed in the shield shell 21. The guide projection 12 is formed integrally with the shield shell 11 and projects in the insertion direction of the shield shell 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield connector with an insertion guide which functions when a male shield shell of a plug connector is inserted into, for example, a female shield shell of a receptacle connector to electrically connect the two. .

[0002]

2. Description of the Related Art Various methods have conventionally been known as measures for easily inserting a plug connector into a receptacle connector and preventing erroneous insertion. For example, Japanese Unexamined Patent Publication No. Hei.
No. 880 describes a measure for preventing erroneous insertion of a plug connector.

Many of these types of measures for preventing erroneous insertion can be roughly classified into the following two patterns. One is that the female connector of the receptacle connector has a characteristic shape in its entirety, and the male connector of the plug connector is formed so that it can be inserted into the female connector. The other is that a female key portion is provided in a part of the female mouth portion, and a male key portion corresponding to the female key portion is provided in a part of the male mouth portion.

[0004] Japanese Utility Model Laid-Open No. 32880 discloses a technique that takes both of these measures. That is, there is described a technique in which both mouths of a metal shell also serving as a shield are trapezoidal, and a concave portion and a convex portion are provided on a surface of a portion where the both overlap. Here, the effect of improving the contact between the metal shells by fitting the concave portions and the convex portions is also expected.

FIG. 9 is a perspective view of a well-known plug connector. This plug connector is configured to protrude from the resin mold 100, a portion of the resin mold 100 attached to a substrate (not shown), a male shield shell 101 surrounding a plurality of pin contacts (not shown) arranged therein, and the like. And two guide pins 102 provided at the same position.

The resin mold 100 is formed in a rectangular parallelepiped shape having a flat rectangular shape, and the male shield shell 101 is formed in a cylindrical shape having a flat elliptical shape. Although the receptacle connector is not particularly shown, the male shield shell 1
A female shield shell into which the 01 is inserted and a guide hole into which the guide pin 102 is inserted are provided.

The tip of the guide pin 102 projects beyond the mouth 103 of the male shield shell 101. Therefore, in the connector insertion operation (coupling operation), the male shield shell and the female shield shell can be aligned with each other by inserting the tip of the guide pin 102 into the guide hole first. Whether the insertion is upside down or not can be determined by changing the thickness of one of the left and right guide pins 102.

[0008]

The plug connector shown in FIG. 9 is excellent in operability and user-friendliness because the guide pin exerts a positioning function as described above, but also has the following problems. Was.

First, it is difficult to reduce the size. Guide pins 1 on both sides of male shield shell 101
02, there is a problem that the overall length L including the resin mold 100 is necessarily increased.

Second, there is a problem that the number of parts is large and the cost is high. The guide pin 102 is a fastening nut 104
However, there is a problem that the number of parts increases accordingly. The increase in the number of parts increases the number of assembly steps,
Production costs rise.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a shielded connector with an insertion guide which has a structure which can be easily reduced in size as a whole, and which can reduce the number of parts to reduce the manufacturing cost.

[0012]

The present invention has the following features to attain the object mentioned above. The shield connector with an insertion guide according to the present invention includes a second connector provided with a cylindrical female shield shell, and a first connector provided with a male shield shell fitted by insertion into the female shield shell. A connector and an insertion guide for the male shield shell with respect to the female shield shell, wherein the insertion guide is provided on the male shield shell and a receiving recess provided on the female shield shell for receiving the guide protrusion. And the guide projection is formed integrally with the male shield shell and protrudes in the insertion direction of the male shield shell.

In the present invention, since the guide projection is provided on the male shield shell and the accommodation recess for accommodating the guide projection is provided on the female shield shell, a separate guide pin is not required, and the overall size can be reduced. It can be easily achieved. In addition, since the guide projection is formed integrally with the male shield shell, the number of parts is reduced, and the manufacturing cost can be reduced. In addition, since the guide projections protrude in the insertion direction of the male shield shell, the function of aligning the shield shells can be sufficiently exhibited.

Here, it is preferable that the male shield shell has a cylindrical portion and a raised portion, and the raised portion is formed as a guide projection, and the guide projection is preferably tapered. If the guide projections are tapered, the guide projections can be easily inserted into the female shield shell.

It is desirable that the guide projections be smoothly raised by caulking a metal plate forming a male shield shell. As described above, if the guide projections are smoothly raised, the guide projections can be smoothly inserted into the female shield shell.

In the present invention, the cylindrical portion has an oval cross section,
It is desirable that guide protrusions are provided on both sides in the major axis direction. With this configuration, the positioning function of the guide projection can be performed in the same manner as the existing guide pin.

It is preferable that both the inner circumference and the outer circumference of the cylindrical portion have an oval shape, and an opening is provided between the two guide projections. In this case, both the guide projection and the opening can be configured to be easily laid out.

It is desirable that the opening of the male shield shell has a rectangular shape in a plane and its long side extends in the major axis direction of the cylindrical portion. With this configuration, the basic configuration of the first connector can be made similar to the existing configuration. Thus, for example, it is possible to adopt a configuration that hardly affects the arrangement of the contacts provided in the cylindrical portion of the first connector.

Further, it is desirable that both guide projections are formed symmetrically with respect to a bisector extending in the short side direction of the opening. With this configuration, the strength distribution of the male shield shell can be made bilaterally symmetric, and the overall configuration can be well balanced.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is an enlarged cross-sectional view of a main part showing a connected state in which a plug connector as a first connector is inserted into a receptacle connector as a second connector. FIG. 2 is a schematic perspective view of the plug connector.

The shield connector with an insertion guide according to this embodiment includes a plug connector 10 as a first connector and a receptacle connector 20 as a second connector, as shown in FIGS. The receptacle connector 20 includes a cylindrical female shield shell 21,
The plug connector 10 includes a male shield shell 11 that is fitted by being inserted into the female shield shell 21.

Further, the shield connector according to this embodiment includes an insertion guide G for inserting the male shield shell 11 into the female shield shell 21. The insertion guide G includes a guide protrusion 12 provided on the male shield shell 11 and a housing recess 22 provided on the female shield shell 21 for housing the guide protrusion 12.

As shown in FIGS. 1 to 4, the plug connector 10 has a resin mold portion 10a for holding the male shield shell 11. The resin mold portion 10a
It is formed in a flat rectangular parallelepiped shape. The resin mold portion 10a has a length L1.

The guide projection 12 which is one component of the insertion guide G is formed integrally with the male shield shell 11 and protrudes in the insertion direction of the male shield shell 11. That is, the mouth 1 of the male shield shell 11
3 protrudes toward the female shield shell 21 side.

The guide projection 12 is connected to the male shield shell 1.
1, the housing recess 22 for housing the guide protrusion 12 is provided in the female shield shell 21 because a guide pin, which is a separate member, is unnecessary as in the related art, and the overall size can be easily reduced. That's why. That is, the length L1 of the resin mold portion 10a is shorter than the length L of the resin mold portion 100 of the existing plug connector shown in FIG. This is because by forming the guide projections 12 integrally with the male shield shell 11, a space smaller than the space in which the guide pins 102, which are separate members, are provided is sufficient.

In addition, by forming the guide projection 12 integrally with the male shield shell 11, the number of components is reduced, and consideration is given to reducing the manufacturing cost. Further, by projecting the guide projections 12 in the insertion direction of the male shield shell 11, the function of positioning the shield shells sufficiently can be achieved.

As shown in FIG. 2, the male shield shell 11 has a tubular portion 11a and a raised portion 11b, and the raised portion 11b is formed as a guide projection 12, and the guide projection 12 is formed. It is tapered. This is because the guide projections 12 are tapered so that the guide projections 12 can easily enter the female shield shell 21.

The portion of the guide projection 12 is smoothly raised by caulking a conductive metal plate forming the male shield shell 11. By forming the male-type shield shell 11 by caulking, consideration is given so that the guide projections 12 can be formed at the same time. In addition, the guide protrusions 12 are smoothly raised so that the guide protrusions 12 can be smoothly inserted into the female shield shell 21.

In this embodiment, the cylindrical portion 11a is oval in cross section, and the guide protrusions 12 are provided on both sides in the major axis direction. These are the guide projections 12, 1
This is because the positioning function of No. 2 can be performed in the same manner as the existing guide pins. This is because the guide projections 12, 12 can exert their guiding function more effectively when they are apart from each other than when they are close to each other.

The inner and outer circumferences of the cylindrical portion 11a are both elliptical, and an opening 14 is provided between the two guide projections 12,12. The reason for this design is that both the guide projection 12 and the opening 14 can be easily laid out and have a simple configuration.

The opening 1 of the male shield shell 11
Reference numeral 4 denotes a flat rectangular shape whose long side extends in the long diameter direction of the cylindrical portion 11a. With this configuration, the plug connector 10
Can be configured to approximate the basic configuration as shown in FIG. Thereby, the male contact 15 provided in the cylindrical portion 11a of the plug connector 10 is provided.
Can be configured so as to have almost no effect on the arrangement. A large number of male contacts 15 are arranged, and are held in the male shield shell 11 by the insulating holding portions 15a.

The two guide projections 12 are formed symmetrically with respect to a bisector m extending in the short side direction of the opening 14. This is to make the strength distribution of the male shield shell 11 bilaterally symmetrical and to provide a well-balanced configuration as a whole.

The receptacle connector 20 is also shown in FIGS.
As shown in FIG. 1, a resin mold portion 20a for holding the female shield shell 21 is provided. The entire portion of the female shield shell 21 is formed in a tubular shape having a plane-oval shape.

The housing recesses 22 of the guide projections 12 are provided near both ends in the major diameter direction of the female shield shell 21. Both accommodation recesses 22 are formed so as to taper toward the bottom of the recesses in accordance with the shape of the guide projections 12.

As shown in FIG. 6, a number of female contacts 25 are arranged in the female shield shell 21. These female contacts 25 are accommodated in the accommodation recesses 22, 2 and
It is held by an insulating holding portion 25a provided between the two. 7 and 8, reference numerals 26 and 16 indicate positioning pins for a circuit board (not shown).

The male contacts 15 are arranged in the male shield shell 11 and the female contacts 25 are arranged in the female shield shell 21. The male contacts are arranged in the female shield and the female contacts are arranged in the male shield. A configuration in which they are arranged in a shield can also be adopted. Further, the first connector may be a receptacle connector, and the second connector may be a plug connector.

In the above-described embodiment, if it is necessary to take measures against erroneous insertion, a known technique can be adopted. For example, the female contact 25 including the insulating holding portion 25a and the male contact 15 including the insulating holding portion 15a may be configured to prevent erroneous insertion upside down.

[0038]

As described above, according to the shield connector with the insertion guide according to the present invention, by providing the guide projection on the shield shell itself, the structure can be easily reduced in size as a whole, and the number of parts can be reduced. Thus, there is an excellent effect that the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a plug connector (first connector) showing an embodiment of the present invention.

FIG. 3 is a front view of the plug connector according to the embodiment of the present invention;

FIG. 4 is a plan view of the plug connector according to the embodiment of the present invention.

FIG. 5 is a front view of a receptacle connector (second connector) showing the embodiment of the present invention.

FIG. 6 is a plan view of the receptacle connector according to the embodiment of the present invention.

FIG. 7 is a side view of the receptacle connector showing the embodiment of the present invention.

FIG. 8 is a side view of the plug connector according to the embodiment of the present invention.

FIG. 9 is a perspective view of a conventional plug connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Plug connector (1st connector) 10a Resin mold part 11 Male shield shell 11a Cylindrical part 11b Raised part 12 Guide protrusion 13 Mouth 14 Opening 15 Positioning protrusion 15a Insulation holding part 20 Receptacle connector (second connector) 20a Resin mold Part 21 Female shield shell 22 Housing recess 25 Female contact 25a Insulation holding part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5E021 FA05 FA14 FA16 FB02 FB30 FC19 FC38 JA05 JA08 KA05 LA09 LA15 5E023 AA04 AA16 BB02 BB22 CC22 CC26 DD08 DD17 DD18 GG15 HH15 HH19

Claims (8)

[Claims] A second connector provided with a cylindrical female shield shell; a first connector provided with a male shield shell fitted by being inserted into the female shield shell; An insertion guide for inserting the male shield shell into the shield shell, wherein the insertion guide includes a guide projection provided on the male shield shell, and a receiving recess provided on the female shield shell for receiving the guide projection. The shield connector with an insertion guide, wherein the guide projection is formed integrally with the male shield shell and protrudes in the insertion direction of the male shield shell. 2. The insertion according to claim 1, wherein the male shield shell has a cylindrical portion and a raised portion, and the raised portion is formed as the guide protrusion, and the guide protrusion is tapered. Guided shield connector. 3. The shield connector with an insertion guide according to claim 1, wherein the guide projection has a shape that is smoothly raised by caulking a metal plate forming the male shield shell. 4. The shielded connector with an insertion guide according to claim 2, wherein the cylindrical portion has an oval cross section, and the guide projections are provided on both sides in the major axis direction. 5. The shielded connector with an insertion guide according to claim 4, wherein both the inner circumference and the outer circumference of the cylindrical portion are oval, and an opening is provided between the two guide projections. 6. The shielded connector with an insertion guide according to claim 5, wherein said opening is a flat rectangular shape, and a long side thereof extends in a major axis direction of said tubular portion. 7. The two guide projections are formed symmetrically with respect to a bisector extending in the direction of an edge of the opening.
A shielded connector with an insertion guide according to claim 1. 8. The shielded connector with an insertion guide according to claim 1, wherein the first connector is one of a plug connector and a receptacle connector, and the other is the second connector.