JPH1022013A - Stacking connector and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mold connectors different in contact pitch by the use of an single metallic molding tool by coating a connector main body with conductive coating material with a nozzle moved traversely, and thereby forming a conductive film thereon. SOLUTION: The first conductive film 3 of a male connector main body 1 consists of a contact 3a acting as a conductive film formed over the swelling 7 of each web plate 5, and of a connecting terminal 3b acting as a conductive film formed over the surface of a base 1a. On the other hand, in a female connector main body 2, a contact 4a on the inner side of each web plate 6 and each connecting terminal 4b over a base 2a, are formed out of a second conductive film 4. The conductive films can be formed at given intervals by means of a nozzle out of which coating material is injected. For example, in the case of the conductive film 3, coating material is applied while the nozzle is being moved from the tip end of each web plate 5 over to the base 1a. After coating has been over, the connector main body 1 is fed by one pitch so as to allow the following conductive film to be formed then. Therefore, even a male and a female connector formed out of an single metallic molding tool, can be made different in contact pitch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stacking connector for electrically connecting two printed wiring boards facing each other or in parallel to each other, and a method of manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, this kind of stacking connector is composed of a pair of a male connector body and a female connector body made of resin molded by transfer molding. Further, the contact for electrical connection and the connection terminal for connection to the external wiring are punched out of a metal plate by pressing to be integrally formed. Then, a strip-shaped metal piece integrated with the contact and the connection terminal is passed through a groove or a hole of the male / female connector main body and assembled to each.

[0003]

Generally, in the case of a stacking connector, there are many types of connectors having the same outer dimensions of the connector body but different pitches of contacts and connection terminals. Conventionally, in order to manufacture a connector body of a stacking connector having different contact pitches, a connector body having grooves or holes having the same pitch as the contact pitch has been manufactured by molding. However, since the molds for molding these connector bodies are very expensive, there is a drawback that the cost per unit increases in the case of small-scale production. In addition, when this mold is not prepared, there is a problem that it takes time to manufacture the mold and it is not possible to immediately respond.

On the other hand, although contacts and connection terminals can be manufactured inexpensively by press working, special assembly equipment is required for assembling them into expensive punching dies and connector bodies, as well as assembly time and cost increase. Many factors are included.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a connector body having different pitches of contacts and connection terminals by using a single mold and without preparing the contacts and connection terminals to be incorporated into the connector body in advance. It is an object of the present invention to provide a stacking connector and a manufacturing method by which a stacking connector having different pitches of the contacts and connection terminals can be obtained.

[0006]

SUMMARY OF THE INVENTION A feature of the present invention is a stacking connector for electrically connecting a plurality of printed wiring boards facing each other or parallel to each other and electrically connecting the printed wiring boards to each other. A male connector body made of a resin having a long first base member on which the male side plate members are arranged in parallel at intervals and two male side plate members are bent and inserted inside each other. A resin female connector main body composed of a long second base member on which two female side plate members are arranged and erected at intervals; and a plurality of female connector bodies at equal intervals in the longitudinal direction of the first base member. A plurality of strip-shaped first members which are arranged in this manner and extend from both sides of the first base member to extend inward from both sides and extend on the outer surfaces of the two male side plate members and are solidified with a conductive paint to be applied. 1 conductive film and the first conductive film A plurality of band-shaped second conductive films extending from both side ends of both bases inward and extending so as to straddle the two female side plate members and solidified with a conductive paint to be applied; A stacking connector.

Another feature of the present invention is that a plurality of pairs of the male connector main body and the female connector main body are formed by the same mold, and the plurality of pairs of the male and female connector main bodies are respectively provided with the first conductive member. The intervals between the nozzles for applying the conductive paint are set in advance according to the desired intervals between the film and the second conductive film, and then the intervals are set so as to cross the long direction of the male and female connector bodies. The first conductive film and the second conductive film having different intervals by applying the conductive paint from the nozzle by relatively moving the nozzles and the first and second bases respectively. Is a method of manufacturing a stacking connector.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIGS. 1A and 1B are a perspective view of a stacking connector according to an embodiment of the present invention and a sectional view after fitting. As shown in FIG. 1, the stacking connector is a resin-made male formed of a long base 1a on which two long side plates 5 having a bulge 7 on the outer surface are arranged in parallel and spaced apart from each other. A connector female body 2 composed of a long base 2a on which two side plates 6 are arranged and screened at an interval at which the two side plates 5 are bent and inserted inside each other; A plurality of bases 1a are arranged at equal intervals in the longitudinal direction and extend so as to extend inward from both sides of the base 1a, and extend on and adhere to the outer side surfaces including the bulges 7 of the two side plates 5. A plurality of strip-shaped first conductive films 3 solidified with paint, and a base 2 corresponding to the first conductive films 3.
and a plurality of band-shaped second conductive films 4 extending from both side ends inward and extending across the two side plates 6 and solidified with a conductive paint to be applied. .

The first conductive film 3 includes a contact 3 a, which is a conductive film formed on the bulge 7 of the side plate 5, and the base 1.
A connection terminal 3b, which is a conductive film formed on the surface a, is formed, and the connection terminals are connected by a conductive film therebetween. On the other hand, in the female connector body 2, the contact 4a inside the side plate 6 and the connection terminal 4b on the base 2a are formed of a second conductive film. As will be described later, these conductive films can be formed at arbitrary intervals by a nozzle for applying a conductive paint. Therefore, even with the male connector body 1 and the female connector body 2 molded by the same mold, several types of stacking connectors having different contact pitches can be obtained.

FIGS. 2A to 2C are cross-sectional views of the male connector main body for explaining a procedure for applying a conductive paint to the male connector main body of FIG. Next, a method of manufacturing the stacking connector will be described. First, the male and female connector main bodies are molded by using a common mold with, for example, heat-resistant vinyl chloride. Next, the male connector main body is placed on the stage of the coating apparatus. Then, FIG.
2B, the nozzle 8a is moved from the tip of the side plate 5 toward the base 1a while discharging a paste-like conductive paint such as a silver paste from the nozzle 8a. As the nozzle 8a approaches the surface of the base 1a, it is gradually rotated and tilted by the tilting mechanism, and as shown in FIGS. 2B to 2C, the base 1a is perpendicular to the surface of the base 1a. A silver paste on the top surface. Next, the male connector main body is moved by one pitch in a direction perpendicular to the plane of the paper, and the next conductive film is applied. In this manner, the male connector main body is sequentially fed to form the entire conductive film.

FIG. 3 is a sectional view of the female connector main body for explaining a procedure for applying a conductive paint to the female connector main body of FIG. On the other hand, when the conductive paint is applied to the female connector main body, as shown in FIG. 3, a nozzle 8b for applying the inside of the side plate 6 and a nozzle 8a for applying the outside of the side plate 5 are loaded in a coating device. When the application of the upper surface of the side plate 6 is completed, the nozzle is switched to the nozzle 8a by the turret head, and a conductive film is formed on the outside of the side plate 6 and the upper surface of the base 2a. Then, the female connector main body is fed by one pitch in a direction perpendicular to the paper surface, and the next conductive film is applied. In this manner, the female connector main body is sequentially fed to form the entire conductive film.

The male and female connector bodies having the conductive films formed at the desired intervals are heated by an infrared lamp and fired with silver paste, which is a conductive film, to become silver contacts and silver connection terminals. In addition, since the surface state of the conductive film after firing is slightly roughened or there is some unevenness between the conductive films, it is desirable to mechanically polish the contact portion of the fired conductive film.
In this embodiment, the conductive film serving as a contact and a connection terminal is formed one by one. However, a plurality of nozzles are arranged side by side and loaded in a coating apparatus, and a plurality of conductive films are simultaneously formed. If this happens, production efficiency will improve.

[0014]

As described above, according to the present invention, a conductive paint is applied to a male / female connector body formed by one common mold and moved across a nozzle to apply a conductive film to be a contact and a connection terminal. By forming, it is possible to eliminate the preparation of the press parts to be the contacts and the connection terminals and the incorporation into the connector main body in advance, which has the effect of reducing the cost. Since the positioning can be changed arbitrarily in the longitudinal direction of the nozzle, stacking connectors with different contact intervals can be obtained even with a connector body of the same external dimensions, so that a mold can be shared, thereby reducing costs and shortening the construction period. This has the effect.

[Brief description of the drawings]

FIG. 1 is a perspective view of a stacking connector according to an embodiment of the present invention and a sectional view after fitting.

FIG. 2 is a sectional view of the male connector main body for explaining a procedure for applying a conductive paint to the male connector main body of FIG. 1;

FIG. 3 is a sectional view of the female connector main body for describing a procedure for applying a conductive paint to the female connector main body of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 male connector main body 1a, 2a base 2 female connector main body 3 first conductive film 3a, 4a contact 3b, 4b connection terminal 5, 6 side plate 7 bulge 8a, 8b nozzle

Claims (2)

[Claims] 1. A stacking connector for electrically connecting a plurality of printed circuit boards facing each other or parallel to each other and electrically connecting two long male side plate members having a bulge on an outer surface at intervals. A resin male connector main body composed of a long first base member arranged side by side, and two female side plate members at an interval where the two male side plate members are bent inward to each other are inserted. A resin female connector main body composed of a long second base member to be lined and arranged, and a plurality of the female connector main bodies arranged at equal intervals in a longitudinal direction of the first base member; A plurality of strip-shaped first conductive films extending from both sides of the base member to the inside and extending on the outer surfaces of the two male side plate members and solidified with a conductive paint to be applied; Crosses inward from both sides of the second base corresponding to the conductive film A plurality of band-shaped second conductive films extending with the conductive paint and extending so as to straddle the two female side plate members. 2. A plurality of pairs of said male connector main body and said female connector main body are formed with the same mold, and said first conductive film and said second conductive film are respectively formed on said plurality of pairs of said male and female connector main bodies. The intervals of the nozzles for applying the conductive paint are set in advance according to the desired intervals of the conductive film, and then the nozzles whose intervals are set so as to cross the long direction of the male and female connector body respectively Wherein the first and second bases are relatively moved and the conductive paint is applied from the nozzle to form the first conductive film and the second conductive film having different intervals. Manufacturing method of a stacking connector.