JPH05234646A - Multielectrode connector - Google Patents

Abstract

PURPOSE:To make it easy to connect to a printed circuit board by lining up the terminals with a lineup plate, and to prevent a trouble owing to a mutual contact of neighboring terminals. CONSTITUTION:Plural lines of window holes 2 are formed in the longitudinal direction by penetrating two opposite spaces of an insulator main body 1. Contacts 3 which have a spring property are pressed in the window holes 2. The contacts 3 projecting from the insulator main body 1 are bent at 90 deg. at specific positions, and the tips are made as terminals 3a. Steps 4a to 4d of a stairway form are formed on a lineup plate 4, and holes 5 are formed on the steps 4a to 4d. As a result, when the terminals 3a are inserted to the holes 5 of the lineup plate 4, the lengths of the contacts 3 from the bendings to the lineup plate 4 are made almost the same, the contacts 3 have almost the same strength and stability, and the mutual contact of the neighboring contacts can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly to a multipole connector having a large number of poles for connecting to a printed circuit board to obtain electrical contact.

[0002]

2. Description of the Related Art A conventional multipolar connector is shown in FIGS.
As shown in, a rectangular parallelepiped insulator body 51 made of an insulator
And is press-fitted into the insulator body 51, and the terminal portion 52a is attached to the tip.
And a terminal portion 52 made of an insulator
and an alignment plate 53 for aligning a.

A plurality of window holes are formed in the insulator body 51 so as to penetrate between the two opposing surfaces, and contacts 52 having a spring property are press-fitted into these window holes. Contact 52
Is projected from the rear of the insulator main body 51 and bent at 90 degrees, and the bent tip is formed as a terminal portion 52a connected to the printed board 54.

A plurality of holes 53a are formed in the alignment plate 53 at the same pitch as the window holes formed in the insulator body 51, and when the multipolar connector is connected to the printed circuit board 54, individual terminal portions 52a are formed. Are aligned by passing through the holes 53a and electrically connected to the circuit of the printed circuit board 54.

[0005]

In the conventional multi-pole connector described above, when the terminal portion, which is the tip portion of the contact, is connected to the printed board, the terminal portion is aligned by the alignment plate. However, since the contact thickness is small, the exposed part between the insulator body and the alignment plate is unstable and easily swings to the left and right.Because the adjacent pitch of each contact is small, after soldering with solder dip, There is a problem that adjacent contacts may come into contact with each other due to the action of some external force to cause a short circuit.

Therefore, there is a problem in that reliability is impaired and realization is difficult when the pitch between adjacent portions is designed to be narrow to achieve high density.

An object of the present invention is to provide a multi-pole connector capable of preventing contact between adjacent contacts.

[0008]

According to the multipolar connector of the present invention, a contact having a spring property is press-fitted into an insulator body having a pair of window holes penetrating between two surfaces and arranged in parallel in the longitudinal direction. A connector body in which a predetermined portion of the contact protruding from the insulator body is bent at 90 degrees, and an alignment in which a plurality of holes corresponding to the number and position of the contacts are formed for inserting the tip portion of the contact. A plate, the alignment plate includes stepped steps corresponding to the number of rows of contacts, and a plurality of holes formed equal to the number of contacts in the longitudinal direction of each step.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a perspective view showing a state in which a multipolar connector according to an embodiment of the present invention is incorporated in a printed circuit board, FIG. 2 is a perspective view of an alignment plate, and FIG. 3 is a perspective view of the connector body as seen from the front. ..

In the figure, a plurality of rows of window holes 2 are formed in the insulator body 1 in the longitudinal direction. The window hole 2 is formed by penetrating in a thickness direction between two surfaces of the insulator body 1 which are the front surface and the rear surface.

In this embodiment, the insulator body 1 is set to have 128 poles, and the window holes 2 are 32 in the longitudinal direction and 4 in the longitudinal direction.
The rows and the window holes 2 are formed with a pitch of 2.54 mm.
However, the number of poles in the multi-pole connector is a number that should be set appropriately, and is not limited to the number of poles in this embodiment.

A contact 3 having a spring property is press-fitted into each window hole 2. The contact 3 is formed with a length larger than the thickness dimension of the insulator body 1, and a part of the contact 3 projects from the rear surface side of the window hole 2 formed in the insulator body 1.

The protruding portions of the contacts 3 are each bent at a predetermined position by 90 degrees, and the bent tip portions are formed as terminal portions 3a. The four contacts 3 arranged in the vertical direction are bent at positions displaced by 2.54 mm with respect to the innermost or outermost contact 3 as a reference.

The alignment plate 4 is made of an insulating material, and has stepped portions 4a to 4d in the same number as the number of rows of the window holes 2 formed in the insulator body 1. Further, holes 5 of the same number as the window holes 2 formed in the longitudinal direction of the insulator body 1 are formed in each of the step portions 4a to 4d.

The steps in the steps 4a-4d are formed to be substantially equal. This step has a value substantially equal to the pitch of the window holes 2. Therefore, the terminal portion 3a of the contact 3
Is inserted into the holes of the alignment plate 4, the exposed lengths from the bent portions of the individual contacts 3 to the alignment plate 4 are substantially equal. For this reason, the rigidity of the contacts 3 can be increased, and the individual contacts 3 have high stability against shake and the like.

When connecting the multipolar connector to the printed circuit board 6, first, the terminal portion 3a of the contact 3 is inserted into the hole 5 of the alignment plate 4 for alignment, and then the terminal portion 3a is connected to the printed circuit board 6. .. When the terminals 3a of the contacts 3 are inserted into the alignment plate 4, the individual contacts 3
Since the lengths from the bent portion to the alignment plate 4 are substantially equal to each other, all the contacts 3 have almost the same stability against the runout, and the adjacent contacts 3
There is no contact between them.

[0018]

As described above, in the multipolar connector of the present invention, the alignment plate is provided with the stepped step, and when the multipolar connector is connected to the printed circuit board, the bent portion of each contact is bent. The length from to the alignment plate is almost equal. Therefore, all the contacts have substantially the same strength and stability against the runout, and it is possible to prevent the occurrence of obstacles such as short circuits.

Further, there is an effect that it is possible to prevent a failure due to contact between the contacts which may occur in miniaturization by reducing the pitch of the adjacent contacts.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a multipolar connector according to an embodiment of the present invention is incorporated in a printed board.

FIG. 2 is a perspective view of an alignment plate.

FIG. 3 is a perspective view of the connector body as viewed from the front.

FIG. 4 is a perspective view showing a state in which a conventional multi-pole connector is incorporated in a printed board.

FIG. 5 is a perspective view of a conventional alignment plate.

[Explanation of symbols]

 1 Insulator body 2 Window hole 3 Contact 3a Terminal part 4 Alignment plate 4a-4d Step part 5 Hole 6 Printed circuit board

Claims (2)

[Claims] 1. A predetermined contact projecting from the insulator body of the contact is press-fitted into the insulator body having a plurality of rows of windows arranged in parallel in the longitudinal direction penetrating between the two surfaces. The connector body has a portion bent at 90 degrees, and an alignment plate having a plurality of holes corresponding to the number and position of the contacts for inserting the tip portions of the contacts, and contact between adjacent contacts. A multi-pole connector characterized by shortening the exposed length of each contact in order to prevent this. 2. The alignment plate is formed with stepwise steps corresponding to the number of rows of contacts, and a plurality of holes equal to the number of contacts are formed in the longitudinal direction of each step. The multipolar connector according to Item 1.