JPH0626159B2 - connector - Google Patents

Description

TECHNICAL FIELD The present invention relates to a connector.

(Prior Art) Various connectors have been proposed in the past.
For example, a plurality of connector pins, which are metal pins, penetrate through a flat rectangular plastic connector holder, and the pins are positioned in parallel with each other in the longitudinal direction of the holder. When connecting circuit boards to each other, for example, both ends of each pin are inserted into holes of each board and soldered to electrically connect circuits of both boards via the pins. When connecting the board and the female connector, one pin is connected to the circuit board by soldering, and the other pin is inserted into the hole of the female connector.

(Problems to be Solved by the Invention) According to the conventional example, since the pins are made of metal, the weight of the entire connector increases, and the pins may come off from the holder, resulting in a drawback of lacking reliability of the connector. . Since a pin cutting process is required to make each pin independent, there is room for further improvement from the viewpoint of improving mass productivity.

Therefore, an object of the present invention is to provide a connector that is lightweight, has a pin that does not come off from a holder, and is highly reliable, and that contributes to improvement in mass productivity.

(Means for Solving Problems) In the present invention, the main body is composed of a terminal body 2 which is a connector terminal using an insulating plating compatible material and a holder body 3 which is a connector holder using an insulating plating incompatible material. After molding, the terminal body 2 has bases 2b, 12b of the terminal portions 2a, 12a, 22a,
22b are connected by connecting portions 2c, 12c, 22c, the holder body 3 covers the connecting portion, and a portion of the terminal body exposed from the holder body is plated with metal coatings 4,14. , 24, and both ends of each terminal are electrically connected by the metal coating.

(Operation) Base portions 2b, 12b, 2 of the respective terminal portions 2a, 12a, 22a
The terminals 2b are connected in an insulating state by the connecting portions 2c, 12c, 22c, but since each terminal portion and the base portion itself are covered with the metal coatings 4, 14, 24, from one end of this terminal portion to the other end. Electricity flows.

(Examples) Examples of the present invention will be described below.

A first embodiment will be described with reference to FIGS.

1 to 3, the main body of the connector 1 is composed of a terminal body 2 that constitutes a connector terminal and a holder body 3 that constitutes a connector holder. The terminal body 2 is a connector terminal using an insulating plating compatible material. The terminal body 2 connects the bases 2b, 2b of the pins 2a, 2a, which are terminal parts formed in a hook shape in section, with a connecting part 2c.

Further, the holder body 3 is a connector holder configured by using a material incompatible with the insulating plating, and covers the base portion 2b and the connecting portion 2c of the pin 2a of the terminal body 2. Holes 3a in which the inner sides of the bases 2b and 2b are exposed
Is formed. Therefore, in the terminal body 2, the inner surface of the pin 2a and the base portion 2b of the pin is exposed from the holder body 3, and the metal coating 4 is formed on the exposed portion by plating, and therefore both the pins 2a and 2a have their base portions. Conduction is made on the inner surface of 2b.

Next, the manufacturing method of the present invention will be described.

As shown in FIG. 4, the terminal body 2 is previously molded as a primary plastic molded product. Then, the terminal body 2 is inserted into the mold, and the insulating plating incompatible material is filled from a predetermined portion of the mold to cover the pin base portion 2b and the connecting portion 2c of the terminal body. Next, a connector molded product as a plastic molded product is molded. Finally, when the connector molded product is plated by a well-known plating method, the pin 2 of the exposed portion of the terminal body 2 exposed from the holder body 3 is plated.
The metal coating 4 is adhered to the inside of the a, 2a and the bases 2b, 2b to form the connector 1 shown in FIG.

Next, a second embodiment will be described with reference to FIGS.

The material of the terminal body 12 and the holder body 13 in the connector 11 is the same as that of the connector 1 in the above example. In this example, the pins 12a of the terminal body 12 are juxtaposed in two rows, and the base portion 12b of the pins has a connecting portion 12c in the column direction.
The left and right directions are connected by the connecting portion 12c1. Part of the pin base portion 12b and the connecting portions 12c, 12c1
Is covered with a holder body 13, but a hole 13a is formed between the pin bases 12b, 12b in the left-right direction in FIG. Therefore, the pins 12a, 12a and these pin bases 12
The left and right inner sides of b and 12b are exposed from the holder body 13.

Portions of the terminal body 12 exposed from the holder body 13, that is, the pins 12a and 12a and the pin base portions 12b,
A metal coating 1 is formed by plating on the inner side of 12b in the left-right direction.
4 is attached.

Next, the manufacturing method will be described. After the terminal body 12 as a primary plastic molded product shown in FIG. 8 is molded in advance, this is inserted into a mold, and the portion to be the holder body 13 is subjected to insulating plating. Fill incompatible material and remove from the mold. Then, when the plating process is performed, the exposed portion of the terminal body 12 exposed from the holder body 13 is plated to form the connector 11 shown in FIG.

Further, a third embodiment will be described with reference to FIGS.

This example is a modification of the second embodiment, and since the configuration and the manufacturing method are substantially the same as those of the second embodiment, the corresponding portions are designated by the same reference numerals as those of the second embodiment, and the description thereof is omitted. Is omitted. In this example, the filler 1 made of an insulating material is provided in the hole 13a and the groove 13a1 (FIG. 11) continuous with each hole.
5 (FIG. 9) is filled. This is to prevent a short circuit between the pin bases facing each other in the hole 13a. On the inner side of the pin base 12b in the left-right direction of FIG.
Ribs 12b1 and 12b1 for preventing the slip-off are projected oppositely. The filling of the filling material 15 into the holes 13a is performed after the molded product is plated.

The advantages in this example are: That is, when connecting the circuit board and the female connector by the conventional connector, the molten flux is generated from the slight gap between the pin and the holder at the insertion portion of the holder by the capillary phenomenon on the back surface of the holder on the substrate side at the welding point. There is a problem in that it flows into the female mold side of the surface and causes poor contact between the pin and the female connector. However, in this example, the above problem is solved by filling the filler.

A fourth embodiment will be described with reference to FIGS.

The pins 22a of the connector 21 are arranged side by side in the vertical and horizontal directions in FIG. 14, and the pin bases 22b are connected by the connecting portions 22c. The holder body 23 has a connecting portion 22c.
And covers the base portion 22b. A metal coating 24 is formed by plating on the surface of the pin 22a and a part of the pin base.

The manufacturing method is the same as in each of the above-described examples, and is performed after the terminal body 22 as a primary plastic molded product is molded in advance.

In this embodiment, since each pin 22a is located half outward from the side surface of the holder body 23, the width of the connector can be made narrower than that of the first illustrated example.

If the manufacturing method shown in each of the above examples is used, a primary process for molding a primary product that is a terminal body, a secondary process for molding a secondary molded product by covering the holder body, and further plating this secondary molded product. However, since all the terminal parts of the terminal body are connected and cover this connection part, the primary molded product can be set with one touch during the secondary process, and it can be inserted into the mold. Good workability.

The manufacturing method may be a two-color molding method in which the terminal body and the holder body are simultaneously molded, and is not necessarily limited to the method of molding the terminal body as a primary molded product as shown in each of the above examples.

(Effect of the Invention) According to the present invention, the terminal body and the holder body are integrally formed of plastic, and the exposed portion of the terminal body that needs to be plated is plated. The weight is reduced, the terminal part does not come off from the holder, high reliability can be secured, the cutting process between the terminal parts is not required, and it is suitable for mass productivity improvement.

[Brief description of drawings]

1 to 4 show a first embodiment of the present invention, and FIG.
FIG. 2 is a sectional view taken along the line II, FIG. 2 is a partial sectional front view, FIG. 3 is a sectional view taken along the line III-III in FIG. 2, FIG. 4 is a front view of the terminal body, and FIGS. FIG. 5 shows an example, and FIG.
6 is a partially sectional front view, and FIG. 7 is FIG. VI.
Fig. 8 is a sectional view taken along the line I-VII, Fig. 8 is a front view of the terminal body, Figs. 9 to 12 show the third embodiment, and Fig. 9 is Fig. 10 IX.
-IX line sectional drawing, FIG. 10 is a partial sectional front view, and the figure which a filler is abbreviate | omitted, FIG. 11 is FIG. 10 XI-XI.
FIG. 12 is a sectional view taken along a line, in which a filler is omitted, FIG. 12 is a front view of a terminal body, FIGS. 13 to 17 show a fourth embodiment, and FIG.
Fig. XIII-XIII line sectional view, Fig. 14 is a partial sectional front view,
FIG. 15 is a sectional view taken along the line XV-XV in FIG. 14, FIG. 16 is a partial sectional left side view of FIG. 14, and FIG. 17 is a front view of the terminal body. 1, 11, 21, ... connector, 2, 12, 22 ... terminal body, 2a, 12a, 22a ... terminal portion (pin), 2b, 12b, 22b ... base portion, 2c, 12c, 22c ... connecting portion , 3, 13, 23 ... Holder body, 4, 14, 24 ... Metal coating.

Claims (1)

[Claims] 1. A base portion (2b, 2) of a terminal portion (2a, 2a).
b) is connected with a connecting portion (2c), and a terminal body (2) constituting a connector terminal using an insulating plating compatible material, and the connecting portion (2c) are covered, and the terminal portion ( 2a,
2a) and at least a part of the surfaces of the base portions (2b, 2b) connected to the terminal portion are exposed, and a holder body (2) that constitutes a connector holder using an insulating plating non-compliant material is provided. However, the surface of the terminal portion exposed from the holder body and the base portion connected to the terminal portion of the terminal body is covered with a metal coating (4) formed by plating, so that both ends of each terminal portion are A connector characterized by being electrically connected by this metal film.