JPH04286810A - Contact structure and its manufacture - Google Patents

Abstract

PURPOSE:To provide a manufacture for the contact structure, wherein the longitudinal V groove in the contact face of the surface of a parent material can be made an electrode bump and not only the stabilization of spot strength and the improvement of contact position accuracy can be sought but also it becomes metal saving, and the contact structure, wherein not only a twin cross bar can be made simply and the reliability on contact can be improved but also the stabilization of the dimension and the strength of the contact spot becomes possible. CONSTITUTION:A jig 5, whose cross section is in the shape of an inverted triangle, is pressed against the contact face 2 of the surface of a parent material 1 so as to lock the longitudinal V groove 4, thus it is made a cross bar contact in twin shape, and then this jig 5 is made an electrode as it is.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact structure used in electrical control equipment and a method of manufacturing the same.

0002

[Prior Art] A conventional contact structure of this type is shown in Fig. 2.
As shown in the figure, there is a method in which a contact surface (gold alloy material) 11 is provided on the surface of a base material (copper alloy) 10 having a trapezoidal cross section, and a welded part 12 is formed at the center of the lower surface of the base material 10. The crossbar contact of the section was attached to the mating member by placing the electrode on the side surface 13 and melting the welded portion 12 by applying electricity to the electrode.

0003

[Problems to be Solved by the Invention] As mentioned above, in spot welding type crossbar contacts in which the electrode is placed on the side surface 13, contact displacement and contact of the electrode against the contact surface 11 occur. As shown in FIG. 3, there was a risk of
The ones that were designed to be removed had complicated shapes, which led to an increase in costs.

[0004]Also, twin crossbars are considerably more reliable than single crossbars as contacts for micro loads, but they have problems in terms of cost, such as an increase in the number of contacts and a complicated shape. There was a point.

The present invention solves the above-mentioned problems, and its first purpose is to use a V-groove along the longitudinal direction of the contact surface side of the surface of the base material as an electrode contact. The object of the present invention is to provide a contact structure that not only can stabilize spot strength and improve contact position accuracy, but also saves money.

[0006] A second object of the present invention is to easily produce a twin crossbar, which not only improves contact reliability but also stabilizes the dimensions and strength of contact spots. An object of the present invention is to provide a method for manufacturing a contact structure.

[0007]

[Means for Solving the Problems] In order to achieve the above-mentioned first object, the present invention forms twin-shaped grooves on the contact surface side of the surface of the base material along the longitudinal direction thereof. It is characterized by having a crossbar contact.

In addition, in order to achieve the above-mentioned second objective, a jig having an inverted triangular cross section is pressed against the contact surface side of the surface of the base material to form a V-groove along the longitudinal direction of the jig. The present invention is characterized in that after forming a twin-shaped crossbar contact, this jig is used directly as an electrode.

[0009]

[Function] By forming a V-groove along the longitudinal direction on the contact surface side of the surface of the base material to form a twin-shaped crossbar contact, this V-groove can be used as an electrode contact, making it possible to spot Not only can the strength be stabilized and contact position accuracy be improved, but it also saves money.

A jig with an inverted triangular cross section is pressed onto the contact surface side of the surface of the base material, and a V groove is formed along the length of the jig to form a twin-shaped crossbar contact. By using the electrodes as they are, twin crossbars can be easily made and contact reliability can be improved, as well as the dimensions and strength of the contact spots can be stabilized.

[0011]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a contact structure according to the present invention. In this contact structure, a contact surface (gold alloy) 2 is provided on the surface of a base material (copper alloy) 1 having a trapezoidal cross section, a welded portion 3 is formed at the center of the lower surface of the base material 1, and a welded portion 3 is formed on the contact surface 2. V groove along the longitudinal direction 4
A twin-shaped crossbar contact is formed by forming a crossbar contact point. The V-groove 4 is formed by using a jig 5 having an inverted triangular cross section and pressing this jig 5 against the contact surface 2 with a press. After pressing the jig 5 against the contact surface 2 to form the V-groove 4, the jig 5 is left as it is and is used as an electrode.
is melted and attached to a mating member (not shown).

According to the above embodiment, the V-groove 4 can be used as an electrode contact, which not only stabilizes the spot strength and improves the accuracy of the contact position, but also saves money.

Further, a jig 5 having an inverted triangular cross section is pressed against the contact surface 2 side of the surface of the base material 1, and a V groove 4 is formed along the longitudinal direction of the jig 5 to form a twin-shaped crossbar contact. After that, by using this jig 5 as an electrode,
Not only can a twin crossbar be easily made and contact reliability can be improved, but also the size and strength of the contact spot can be stabilized.

[0014]

As explained above, the present invention forms twin-shaped crossbar contacts by forming a V-groove along the longitudinal direction on the contact surface side of the surface of the base material. can be used as an electrode contact, which not only stabilizes the spot strength and improves contact position accuracy, but also saves money.

[0015] Furthermore, in the present invention, a jig having an inverted triangular cross section is pressed against the contact surface side of the surface of the base material, and a V groove is formed along the longitudinal direction of the jig to form a twin-shaped crossbar contact. After that, this jig was used as an electrode, so a twin crossbar could be easily made, and not only the contact reliability could be improved, but also the size and strength of the contact spot could be stabilized.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a contact structure according to the present invention.

FIG. 2 is a perspective view of a conventional contact structure.

FIG. 3 is a perspective view of another conventional contact structure.

[Explanation of symbols]

1 Base material 2 Contact surface 3 Welded part 4 V groove 5 Jig

Claims (2)

[Claims] 1. A contact structure characterized in that a V-groove is formed along the longitudinal direction on the contact surface side of the surface of a base material to form a twin-shaped crossbar contact. 2. A jig with an inverted triangular cross section is pressed against the contact surface side of the surface of the base material to form a V-groove along the longitudinal direction of the jig to form a twin-shaped crossbar contact. A method for manufacturing a contact structure characterized by using a jig as an electrode.