JPH0668936A - Shell for connector - Google Patents

Abstract

PURPOSE:To manufacture one metal plate into a shielding shell used for a thin connector. CONSTITUTION:A shell 1 is provided with flat plate parts 10, 11 connected at a folding part 9, and is also provided with a front and a rear openings 13, 12, an insulating body lock hole 14, a spring piece 15, a locking arm 16 and a stopper 17 or the like. An insulating body 2 is inserted from the front opening 13, and a projection 6 thereof is fitted in the lock hole 14. Projections 16a of the locking arm 16 and the stopper 17 are fitted in corresponding recessed parts of a memory card 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector which is attached to an extremely thin device such as an IC memory card or a small device and is used for connecting a cord for communication.
The present invention relates to a metal shell used to shield a conductive portion of the connector from static electricity or electromagnetic interference waves that cause noise.

[0002]

2. Description of the Related Art A shell of this type is known as the actual Kaihei 3-2367.
As shown in No. 9, No. 3-50624, etc., the structure is generally divided into two parts, and the structure in which the connector is covered from both sides and coupled by screws is common. In such a structure, one shell has a thick wall. Since the internal thread portion of the shell must be formed, there is a disadvantage that the internal space of the shell is narrowed and the structure becomes complicated and expensive.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to obtain a connector shell which can be made thin and is easy to manufacture and can be easily held in a counterpart device.

[0004]

Means for Solving the Problems According to the present invention, the means for solving the above problems is to provide a connector shell for covering the outer surface of an insulator that holds a large number of contacts arranged side by side. The connector shell is made of a metal plate and is bent at small intervals. A bent portion, two flat plate portions following the bent portion, a rear opening that is opened in the bent portion, a front opening that is formed on the flat plate portion free end side, and extends from the flat plate portion to both sides, It is characterized in that it is provided with a locking arm having a protrusion in the plate thickness direction and a spring piece formed by cutting and raising a flat plate portion.

[0005]

Since the above means are provided, the insulator can be housed and locked in the shell with the contact protruding from the front opening, and the spring piece is provided in the receiving portion of the equipment to which the connector is attached. It is engaged and fixed to the board of the device by the protrusion of the locking arm.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a connector to be attached to an IC memory card. In FIG. 1, C is the connector, 1 is its shell, 2 is an insulator, 3 is a contact, and a large number of contacts 3 are front edges of the insulator 2. 2a provided on the part 2a in FIG.
_It is pushed into the insertion hole shown as ₁ , and its rear portion 3a is arranged along the lower surface of the support plate 4. The insulator 2 has side edges 2b extending rearward from the front edge 2a, and the front edge 2a has a pair of connecting arms 5 extending forward from both front ends thereof and a connecting pin 5a projecting downwardly therefrom. , By this, it is coupled to the board of the other device. Further, locking projections 6 are provided on the upper and lower surfaces of the front edge 2a, locking grooves 7 are provided on the outer surface of the side edge 2b, and the inner surface of the side edge 2b is engaged with another connector described later. A lock fitting 8 having a receiving hole 8a for receiving the pawl is press-fitted. The three dovetail-shaped keyways 4a shown on the upper surface of the support plate 4 are for identifying the mating connector, and spring pieces (not shown) are press-fitted into one or three of the three keyways 4a. The groove is closed, and only the connector having only the key capable of engaging with the remaining groove 4a is connected, and the connectors having the same number of pins can be connected.

Referring to FIGS. 1 to 3, the shell 1 is made by molding a metal plate such as a stainless plate, and the metal plate is bent at a bending portion 9 into a U-shape to form two parallel flat plates. Part 10, 1
1 is formed, the bent portion 9 is provided with a rear opening 12, and the opposite free end side is formed with a front opening 13. The flat plate portions 10 and 11 are each provided with an insulator locking hole 14 into which the locking protrusion 6 of the insulator 2 is engaged, and is formed by a U-shaped notch so
A tongue-shaped spring piece 15 is cut and raised, and the spring piece 15 makes elastic contact with the inner surface of the metal case of the memory card.

A pair of locking arms 16 extends from both sides of one flat plate portion 10 into an L-shape, and downward projections 16a are projected from the bending arms 9, and a stopper 17 is bent from the bent portion 9 into an L-shape. Extend to. The protrusion 16a engages with the hole of the substrate of the memory card, and the stopper 17 engages with the groove of the substrate for positioning. Further, U-shaped side pieces 18 are bent on both sides of the front ends of the flat plate portions 10 and 11, and the claw 1 at the tip is
8a engages with the locking groove 7 of the insulator 2 to form the flat plate portions 10, 1
Prevent opening of 1.

As shown in FIGS. 4 and 5, the connector C is
The insulator 2 is inserted into the shell 1, and the insulator 2
Are pushed against the elasticity of the shell 1 through the front opening 13. Then, the connector C fits into the mounting opening 21a provided in the substrate 21 of the IC memory card 20, and the projection 16 of the locking arm 16 is fitted into the hole 21b of the substrate 21 as shown in FIG.
a is engaged, the stopper 17 is engaged with the cut groove 21c of the substrate 21 shown in FIG. 7, and the coupling pin 5a is engaged with the hole 21d. In this state, each contact 3 comes into contact with each terminal 22 arranged on the substrate 21. The rear end side of the contact 3 faces the rear opening 13 side along the lower surface of the support plate 4 to form a male connector, and contacts the contact of the female connector inserted through the opening 13. In FIG. 8, reference numeral 25 denotes a female connector, in which an insulator having a large number of contacts 27 inserted therein is held in a sheet metal shell 26. The shell 26 is housed in a resin cover 28, and the cover 28
Also, the core wire of the cord introduced through the cord supporting portions 28 a and 26 a provided on the shell 26 is connected to the contact 27. On both sides of the front end of the shell 26, a pair of spring pieces 29 formed by extending and bending a part of the shell 26 are continuously provided, and a lock claw 29a by cutting and raising is formed on the outer surface of the front portion of the spring piece 29. The rear end of the spring piece 29 is in contact with the inner surface of the thin flexible portion 30 formed on both side surfaces of the cover 28.

When the female connector 25 is connected to the connector C, the lock claw 29a engages with the inward receiving hole 8a provided in the insulator 2 of the connector C and the female connector 2
In order to separate the connection, the flexible pieces 30 are pushed by the fingertips to lock the lock claws 29.
It suffices to reduce the distance a and allow it to escape from the receiving hole 8a.

[0011]

As described above, since the shell of the present invention is formed by molding a single metal plate, it can be made extremely thin and can be held integrally only by inserting an insulator into it. it can. Moreover, since the locking arm and the spring piece are integrally formed as an extension of the shell, there is an effect that the locking arm and the spring piece can be accurately attached to the counterpart device without using a separate member. In addition, since the shell can be easily manufactured and the insulator can be easily incorporated in the shell, the connector can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a connector embodying the present invention.

FIG. 2 is a longitudinal sectional view of the shell

[FIG. 3] Same as the above partial end view

FIG. 4 is a vertical sectional view of the connector attached to the memory card.

FIG. 5 Same as above

FIG. 6 is an explanatory view of the action of the locking arm.

FIG. 7 is an explanatory view of the action of the stopper.

FIG. 8 is a sectional view of the female connector.

[Explanation of symbols]

1 shell 2 insulator 3
Contact 9 Bent part 10, 11 Flat plate part 12
Rear opening 13 Front opening 14 Insulator locking hole 15
Spring piece 16 Locking arm 17 Stopper 20
Memory card

Claims (2)

[Claims] 1. A connector shell for covering an outer surface of an insulator holding a large number of contacts arranged side by side, the bent part being made of a metal plate, bent at small intervals, and two pieces following the bent part. Of the flat plate, a rear opening of the bent part, a front opening formed on the free end side of the flat plate part, a locking arm extending from the flat plate part to both sides and having a protrusion in the plate thickness direction, and the flat plate part. A shell for a connector, comprising: a spring piece formed by cutting and raising. 2. The shell for a connector according to claim 1, wherein the flat plate portion is provided with an insulator locking hole for locking a protrusion provided on the insulator.