JPH0443583A - Assembling male connector - Google Patents

Abstract

PURPOSE:To make a pressing and assembling process effective by connecting a male contact part with a contact having a terminal part bent almost perpendicularly from the male contact part like a hoop. CONSTITUTION:A contact inserting hole 2a is set larger by a predetermined size than the outer configuration of a contact 1, and they are assembled by inserting a hoop of a contact wholly with make contact parts 1a on the forward side into the insertion holes of an insulation body 2, and protrusions 1b are fitted into and fixed at the contact insertion hole, so by moving a carrier 5, notches 4 are broken to separate the contact from connection parts 3 wholly. If the pitch of the insertion hole in the insulation body is 2.54mm, with the pitch of the contacts provided in parallel in the carrier being of the same size, then a line can be assembled by one press-fitting-in operation.

Description

[Detailed Description of the Invention] [Summary] In particular, with regard to a method of assembling a male connector for surface mounting, the purpose is to make contacts having a male contact portion into a hoop shape so that they can be attached to an insulator all at once. A method for assembling a male connector for surface mounting which is press-fitted into a body, and is made of a metal material, has a male contact part at the upper part, a protrusion at the middle part, and a part at the center of the lower end at a right angle of y° when viewed from the side. It has a protruding terminal part that is cut and bent in the direction, and a hoop-shaped contact that is arranged in parallel with the carrier via a connecting part that has a notch at the boundary at the lower edge part is insulated. When it is assembled into an insulator made of a material having a plurality of contact insertion holes arranged in rows, the male contact portions of the contacts are inserted all at once from below each of the contact insertion holes of the insulator, and the protrusions form the contacts. After the male connector is firmly press-fitted into the insertion hole, the male connector is assembled by shaking the carrier, bending the notch, and separating the connecting portion from the contact all at once.

[Industrial application field]

TECHNICAL FIELD The present invention relates to a connector and its assembly method, and particularly to an SM
The present invention relates to a connector and an assembly method in which the contacts of a T connector are connected in a hoop shape so that attachment to an insulator can be streamlined.

In recent years, with the advancement of electronics, the demand for various types of connectors that connect devices or cables is increasing, and their mounting on printed circuit boards is also popular.

By the way, electronic components mounted on printed circuit boards were initially made into chip components with the aim of high-density packaging in order to realize the miniaturization of consumer equipment, and SMT (Surf
Coupled with surface mount technology (abbreviated as ace mount technology), SMD (S M Devices) for components mounted on printed circuit boards.
) has become essential. Recently, SMT has also been applied to information equipment, and in response to this, SMD connectors have been implemented.

However, conventional connectors were automatically assembled and mass-produced using a mounting method in which the terminals were inserted into through-holes on a printed circuit board and soldered.
Various production technology reforms are required for connectors that support this.

[Conventional technology]

The basic structure of a connector is contacts and an insulator, and how the contacts are fixed to the insulator greatly influences the productivity of the connector.

Although there are special methods for fixing contacts to insulators, such as insert molding, fixing by press-fitting is usually frequently used from the standpoint of practical strength and productivity.

FIG. 3 is a side sectional view of an example of a press-fitted surface mount connector, and FIG. 4 is a perspective view of an example of a contact.

In the figure, 1 is a contact, 1a is a male contact portion, 1b is a protrusion, 1c is a terminal portion, 2 is an insulator, 2a is a contact insertion hole, 6 is a printed board, and 6a is a pad.

The contact (1) is made of a metal spring material such as brass, phosphor bronze, or beryllium copper. The upper end portion of the contact 1 serves as a male contact portion 1a of a male connector that fits into a contact of a mating female connector.

Further, a protrusion 1b having a height of about 0.1 to 0.2 mm, generally called a bulge, is provided at the intermediate portion.

Further, the lower end portion of the contact 1 is a terminal portion 1c that is connected to a cable or bonded to a printed circuit board. In the case of a surface mount connector, as shown in FIG. 4, the terminal portion 1c is bent in a direction substantially perpendicular to the male contact portion 1a, and bent downward into a chevron shape. It is shaped so that it can be easily surface mounted.

The insulator 2 can be made of various materials depending on the purpose of the connector, such as PBT, which has insulation properties, good heat resistance, and high mechanical strength! Engineering plastics such as PS are often used. This insulator 2 has a contact insertion hole 2a into which the contact 1 is installed.
are provided, for example, in two rows, and various connectors are constructed in which the number of contacts 1 ranges from several to over 100.

There is a press-fitting allowance in the contact insertion hole 2a, and the contact 1
For example, when the contact 1 is inserted into the contact insertion hole 2a with the male contact portion 1a first, the protrusion 1b bites into the inner wall of the contact insertion hole 2a. It is press-fitted and fixed in place.

The terminal portion 1c of the contactor l-1 protrudes laterally from the bottom surface of the insulator 2, and is connected to the printed board 6 as seen in the leads of a flat package of a semiconductor device.
It is placed on the pad 6a and is subjected to flow soldering, for example.

As described above, the assembly method of fixing the contact 1 to the insulator 2 by press-fitting has become an indispensable production technique when mass-producing connectors.

By the way, in general, in the mass production process of connectors that are assembled by press-fitting, the contacts are straight and the terminal part is in the same plane as the male contact part, so it is easy to connect the tips of the terminal parts to form a hoop shape. be.

In other words, contacts are made by pressing strips of material using, for example, a progressive die and connecting them into a hoop shape.Not only surface treatment processes such as contact plating, but also the assembly process of press-fitting the contacts into the insulator, are performed using the hoop shape. This is commonly done.

Also, in surface mount connectors, the female contact requires springiness, so the thickness of the material is at most 0.5mm.
The length is approximately 2 mm, and the terminal portion is constructed by cutting and raising the terminal portion by press working.

However, in the contacts of male connectors for surface mounting, the male contact part is in the shape of a rectangular bar, and the plate thickness is correspondingly thick, so the terminal part is cut and raised at right angles to form a hoop shape. Processing to connect them is difficult.

[Problem to be solved by the invention]

For this reason, conventional male connector contacts for surface mounting are handled in single bottles, each with individual contacts, and manufacturing efficiency such as surface treatment processes such as plating and assembly processes in which the contacts are press-fitted into the insulator and fixed is reduced. There was a problem that significantly hindered the

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for assembling a male connector for surface mounting, in which male contacts can be assembled in a hoop shape.

[Means to solve the problem]

The problem mentioned above is how to assemble a surface-mount male connector in which the contacts are press-fitted into an insulator, and is made of a metal material with a male contact part on the top, a protrusion in the middle, and a bottom end. It has a protruding terminal part cut and bent in a right angle direction when viewed from the side, and is arranged parallel to the carrier at the lower peripheral part through a connecting part having a notch in the boundary part. When assembling a hoop-shaped contact into an insulator made of an insulating material and having a plurality of contact insertion holes arranged in a row, the male contact portion of the contact is inserted from below each of the contact insertion holes of the insulator. A method for assembling a male connector configured to insert the connector all at once, and after the protrusion is firmly press-fitted into the contact insertion hole, the carrier is shaken to bend the notch and the connecting part is separated from the contact all at once.

[For production]

Surface-mount male connectors have a terminal section that protrudes in the X direction perpendicular to the male contact section.
While it was troublesome to connect the contacts in a hoop shape, in the present invention, the contacts are connected in a hoop shape to improve the efficiency of the assembly process.

That is, the terminal portion is made to protrude from the center of the lower end of the contact and is cut and bent at a right angle, and the connecting portion is made to protrude from the peripheral portion of the lower end and is connected to the carrier. A plurality of contacts are arranged in parallel on the carrier with their connecting portions facing each other to form a hoop shape.

Further, a notch is provided at the boundary between the contact and the connecting portion so that the contact and the connecting portion can be separated by bending.

When assembling, first insert a plurality of hoop-shaped contacts from below a plurality of contact insertion holes arranged in a row in the insulator, and press the protrusions into the contact insertion holes to firmly press-fit them. There is. Next, by shaking the connecting portion and bending the notch, the notch breaks and the connecting portion can be separated from the contact all at once.

In this way, a male connector for surface mounting can be obtained.

〔Example〕

FIG. 1 is a side sectional view of an embodiment of the present invention, and FIG. 2 is a perspective view of the main part of FIG. 1.

In the figure, 1 is a contact, 1a is a male contact portion, 1b is a protrusion, 1c is a terminal portion, 2 is an insulator, 2a is a contact insertion hole, 3 is a connecting portion, 4 is a notch, and 5 is a carrier.

In the figure, contact 1 is made of brass, phosphor bronze, for example.
A metal spring material such as beryllium copper is often used. In order to construct the male contact portion 1a, a thick strip with a plate thickness of 0.4 mm or 9.5 mm is subjected to press processing such as shearing and bending. be exposed.

A male contact portion 1a at the upper end of the contactor 1 fits into a contact of a mating female connector.

A protrusion 1b having a height of, for example, 0.1 mm is provided in the intermediate portion of the contact 1.

In addition, the center part of the lower end of the contact 1 protrudes to form a terminal part IC, which is cut and bent in a direction perpendicular to the
It is shaped into a downwardly curved chevron shape to facilitate surface mounting.

Further, two connecting portions 3 protrude from the lower end of the contact hole on both sides of the terminal portion 1c, and the tips thereof are connected to the carrier 5. Then, the contact 1 and the connecting part 3
A V-shaped notch 4 is provided at the boundary.

This contact 1 is formed by, for example, progressive press working, in which a plurality of contacts 1 are arranged in parallel on a carrier 5 via a connecting portion 3, and a hoop-shaped contact 1 is completed.

Next, the male contact portion 1a of this hoop-shaped contact 1
Continuous plating with Ni, Au, etc. is applied to the terminal portion 1c.

The insulator 2 is made by molding an engineering plastic such as PBT, which has insulation properties, good heat resistance, and high mechanical strength. Further, contact insertion holes 2a from several to the image side into which the contacts 1 are attached are provided, for example, in two rows.

There is a press-fitting allowance in the contact insertion hole 2a, and the contact 1
For example, when the contact 1 is inserted into the contact insertion hole 2a, the protrusion 1b is press-fitted and fixed into the inner wall of the contact insertion hole 2a.

When assembling, insert the contact insertion hole 2a of the insulator 2 into the
The hoop-shaped contact 1 is inserted into the male contact portion 1a from below.
are inserted all at once, with the contact holes 1b being press-fitted into the contact insertion holes 2a.

Next, by shaking the carrier 5 and bending the notch 4, the notch 4 is broken and the contact 1. and the connecting portion 3 can be separated all at once.

Now, if the pitch of the contact insertion holes 2a provided in the insulator 2 is 2.54 mm, and the pitch of the contacts 1 arranged in parallel on the carrier 5 is also 2.54 mm, then
One row can be assembled at once with a single press-fitting operation.

Further, in the case of a high-density type in which the pitch of the contact insertion holes 2a is 1.27 mm, by moving the contacts half a pitch at a time, one row can be assembled at once with two press-fitting operations.

Furthermore, when assembling is performed using an automatic machine, if there are two rows of contact insertion holes 2a, press-fitting of the two rows is also performed at the same time.

In this way, a male connector for surface mounting can be constructed.

(Effects of the Invention) Conventionally, in surface-mount male connectors, the contacts have been handled separately one by one.

In contrast, according to the present invention, a male contact portion and a contact having a terminal portion bent in the direction perpendicular to X' are connected in a hoop shape to improve the efficiency of the assembly process. be able to. Furthermore, by forming the contact into a hoop shape, it is possible to greatly improve the efficiency of the press working process for manufacturing the contact and the surface treatment process such as plating.

Therefore, the present invention greatly contributes to improving the manufacturing efficiency of surface-mount connectors, which are expected to develop rapidly.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of an embodiment of the present invention, Fig. 2 is a perspective view of the main parts of Fig. 1, Fig. 3 is a side sectional view of an example of a press-fitted surface mount connector, and Fig. 4. is a perspective view of an example of a contact; In the figure, 1 is a contact, 1b is a protrusion, 2 is an insulator, 3 is a connecting portion, and 5 is a carrier. 1a is the male contact part, 1c is the terminal part, 2a is the contact insertion hole, ・4 is the notch, 1st door? ! @IS/) @I1. ．． f! 1st 2nd
I21, no, Igo Sun Moon n real o can, eJ/) (If Ren ntb figure press fit 7 now 1 table frJ actual production connection 2 n-kai 1/) 匍・
] Figure 1H covered Figure 3 @vt diagram of an example of Kosotaku F Figure 4

Claims (1)

[Claims] A method of assembling a male connector for surface mounting in which a contact (1) is press-fitted into an insulator (2), the connector is made of a metal material, and has a male contact portion (1a) on the upper part and a protrusion (1a) on the middle part.
b), and a terminal portion (1c) which is cut and bent in a substantially right angle direction when viewed from the side and protrudes from the center of the lower end portion;
and the hoop-shaped contact (1) is made of an insulating material and is arranged in parallel with the carrier (5) via a connecting part (3) having a notch (4) at the boundary part at the outer periphery of the lower end part. When incorporating the contacts (1) into the insulator (2) having a plurality of contact insertion holes (2a) arranged in a row, the contacts (1) are inserted from below each of the contact insertion holes (2a) of the insulator (2). The male contact portion (1a) is inserted all at once, and the protrusion (1b) is inserted into the contact insertion hole (2).
After the carrier (5) is press-fitted into the carrier (5)
, bend the notch (4) by shaking the
) is separated from the contact (1) all at once.