JP3274973B2 - Interface 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 interface connector for connecting electronic devices, and more particularly to a conductive structure between a shell and a lock pin.

[0002]

FIG. 2 is a perspective view of a conventional interface connector 10. As shown in FIG. The conventional interface connector 10 mainly includes a contact 14, an insulator 12, a shell 16, and a lock pin 18.

The plurality of contacts 14 are held and fixed to the insulator 12 by press fitting or the like. The contact 14 is made of metal and is manufactured by a known technique such as press working. The insulator 12 is made of resin and is manufactured by known injection molding or the like. The shell 16 has a shielding effect by covering the insulator 12 on which the plurality of contacts 60 are held and fixed. This shell 16
It is made of metal and manufactured by a known technique such as press working.
The lock pin 18 is also made of metal and, like the shell 16, is manufactured by a known technique such as press working. The lock pin 18 is provided on the flange 29 of the insulator 12 in the direction of arrow “B”,
6 until it comes into contact with the flange portion 31.

[0004]

As described above, when the lock pin 18 is fixed to the connector 10, a clearance may be generated between the lock pin 18 and the shell 16, and the shell 16 and the lock pin 18 may not be connected to each other. However, there is a problem that reliable conduction cannot be achieved. This problem can be solved by using a separate component to lock the lock pin 18 on the shell 16 by eyelet mechanical fastening or the like. But,
In recent years, demands for cost reduction have generally been increasing even in connectors. In such a situation, the use of another part leads to an increase in cost, and a separate step of fixing the lock pin 18 to the shell 16 using another part is also required, which further increases the cost. There were issues to be addressed.

SUMMARY OF THE INVENTION An object of the present invention is to provide an interface connector 10 which can ensure reliable conduction between a shell and a lock pin, does not increase the number of parts, does not increase cost, and can be easily assembled. And

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a projection provided on a flange portion of a shell, the projection projecting from a side opposite to a fitting side. This can be achieved by providing on both sides in the direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A convex portion 30 provided on a flange portion 31 of a shell 16 is formed by cutting and raising during press working. By forming the protrusions 30 by cutting and raising at the time of press working as described above, the working is easy without increasing the number of parts.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1A is a perspective view of an interface connector 10 and a lock pin of the present invention, and FIG.
(A) is a top view of the flange part seen from the left. The interface connector 10 of the present invention mainly includes a contact 14, an insulator 12, a shell 16, and a lock pin 18. Although the size of the interface connector 10 varies in size, in this embodiment, the length is 67 m.
m, the width is about 24 mm, and the height is about 15 mm. The length varies depending on the contact pitch size and the number of cores. In this embodiment, the contact pitch is 2.16 mm and the number of cores is 36. 0.5 ~
2.54 mm or the like is considered, and the number of cores is considered to be 14 to 64, etc., and is appropriately designed according to the function or the like.

In the present embodiment, an L-shaped dip type is shown as the shape of the contact tail 36, but it may be a surface mount (SMT) type or a straight dip type. First, the plurality of contacts 14 are held and fixed to the insulator 12 as in the related art, and are manufactured by a known press working or the like. As a material of the contact 14, brass, phosphor bronze, or beryllium copper having good conductivity is used as in the related art. Considering the spring properties and workability, phosphor bronze is preferred. The contact 14 generally includes three parts: a contact part that contacts a mating connector (not shown), a fixing part that is fixed to the insulator 12, and a tail part 34 that is connected to a board or the like.

Next, the insulator 12 is also manufactured by known injection molding or the like as in the prior art. As for the material of the insulator 12, since the moldability and cost are taken into consideration as in the prior art, PBT
-PET, PA, PPS, LCP, etc. are used.
Considering the cost, PBT is preferable. The insulator 12 is provided with flanges 29 on both sides in the longitudinal direction. The flange 29 is a portion to which the lock pin 18 is fixed, and is provided with a means for fixing the lock pin 18. This means is to provide a groove (not shown) and press-fit the lock pin 18 into the groove. Further, the flange 29 is provided with a concave portion 27 which is a fixing portion of the leg portion 24 of the lock pin 18 when the connector 10 is connected to the board. The recess 27 may be a groove or a hole.

Next, the shell 16 which is one of the points of the present invention will be described. The shell 16 has a shielding effect by covering the insulator 12 on which the plurality of contacts 14 are held and fixed. This shell 16
Is made of metal and is manufactured by a known technique such as press working. As the material of the shell 16, brass, steel, stainless steel, or the like is used. Considering workability and cost, the material is preferably brass or steel. The shell 16
It is fixed to the insulator 12 by caulking or the like.

On both sides in the longitudinal direction of the shell 16, fitting holes 3 are provided.
A projection 30 protruding on the side opposite to 8 is provided. The protruding portion 30 is a portion for fixing the lock pin 18, and serves to measure conduction between the shell 16 and the lock pin 18 by making contact. The convex portion 30 is provided in the shell 16
It is created by cutting up during press working.
The shape of the convex portion 30 may be any shape as long as the above role can be satisfied, and may be a circle or a square. A square is preferable in consideration of workability. The size of the protrusion 30 may be any size as long as the above role can be satisfied.
6 is appropriately designed in consideration of workability of the lock 6, strength of the lock pin 18, and the like. In the present embodiment, the shape is square and about 2 mm.

Next, the lock pin 18 which is another point of the present invention will be described. Lock pin 18
Similarly, the contact 14 is made of metal, and is manufactured by a known press working or the like. As the material of the lock pin 18, brass, phosphor bronze, or beryllium copper, which has high conductivity like the contact 14, is used. Considering the spring properties and workability, phosphor bronze is preferred. The lock pin 18 is roughly divided into three parts of the engaging part 20, the connecting part 22, and the leg part 24 in terms of function.
Can be divided into parts. In this embodiment, the shape of the lock pin 18 is a crank shape. However, the shape of the lock pin 18 may be a straight line without the connecting portion 22. In this embodiment, the size of the lock pin 18 is 12 mm in length and 5 mm in width.
The height was set to about 15 mm.

The engaging portion 20 is a portion that comes into contact with the shell 16. The engaging portion 20 is provided with a screw portion 28 for engaging with a panel or the like substantially near the center. Also,
The engaging portion 20 is provided with locking portions 26 for fixing to the convex portions 30 of the shell 16 on both sides in the width direction. The size of the locking portion 26 may be any size as long as the protrusion 30 of the shell 16 can be fixed.
8 is appropriately designed in consideration of the strength and the like. In this embodiment,
It was about 1 × 2 mm. The shape of the locking portion 26 may be any shape as long as the above role can be satisfied.
It may be in the shape of a letter. In this embodiment, the shape is square.

The connecting portion 22 includes the engaging portion 20 and the leg portion 24.
It is the part to connect. The leg 24 is connected to the connector 10.
And one for temporarily fixing to the substrate, and one or two legs. Each leg 22 is temporarily fixed to the connector 10 substrate. for that reason,
In this embodiment, two legs are provided, and a U-shaped slit portion is provided between the legs to satisfy the spring property.

Next, a method of fixing the lock pin 18 to the connector 10 will be described. The lock pin 18 is
As shown in (A), the insulator 12 is inserted into a groove (not shown) of the flange 29 of the insulator 12 in a direction indicated by an arrow "A" by a jig or the like. By being further pushed in the direction of the arrow “a”, the convex portion 30 of the shell 16 is locked by the locking portion 2 of the lock pin 18.
6 and is fixed by being press-fitted.

[0017]

The present invention has the following remarkable effects by the above-described structure. The protrusion 30 of the shell 16 is the locking portion 26 of the lock pin 18
The shell 16 and the lock pin 1
8 and can be reliably conducted. The protrusion 30 of the shell 16 can be easily pressed into the lock 26 of the lock pin 18. -Since the convex portion 30 of the shell 16 is formed by cutting and raising at the time of processing the shell 16, there is no increase in the number of parts and no increase in cost.

[Brief description of the drawings]

FIG. 1A is a perspective view of an interface connector and a lock pin of the present invention. (B) It is the side view seen from the left of (A).

FIG. 2 is a perspective view of a conventional interface connector and a lock pin.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Interface connector 12 Insulator 14 Contact 16 Shell 18 Lock pin 20 Engagement part 22 Connection part 24 Leg part 26 Lock part 27 Depression 28 Screw part 29 Flange 30 Convex part 31 Flange part 34 Tail part 36 Groove 38 Fitting opening

Claims (2)

(57) [Claims] 1. An interface connector comprising a contact, an insulator holding and fixing a plurality of contacts, a shell covering the insulator, and a lock pin connected to a substrate. An interface connector comprising: a projection protruding from a side opposite to a fitting side; and locking portions on both sides in a width direction, in which the projections can be inserted into engagement portions of the lock pin. 2. The interface connector according to claim 1, wherein the convex portion provided on the flange portion of the shell is formed by cutting and raising during press working.