JPS60112211A - Vertical switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vertical switch used in various electronic devices.

Conventional configurations and their problems Generally, switches are made by sliding the operating body,
There are two types of affi: a horizontal type that controls switching by swinging the movable contact piece, and a vertical type that performs switching control by sliding the operating body in the pushing direction and sliding the movable contact piece in the vertical direction. be.

This vertical switch has generally been constructed as shown in FIG. That is, a case 1 made of synthetic resin and having an open top surface incorporates terminal blocks 31L and 3b in which a plurality of fixed terminals 2 are vertically arranged and integrated with synthetic resin. , 3t1
In between, an Ω-shaped movable contact piece 4 a that contacts the fixed terminal 2
, 4 b fz holding operating body 6 is incorporated, and furthermore, a coil spring 6 for upwardly biasing this operating body 6 is housed, and it has an opening lower a into which a part of this operating body 5 is fitted. The cover 7 is placed over the upper surface of the case 1, and the engagement protrusion 1a on the side surface of the case 1 is inserted into the retaining hole 7b on the side surface of the cover 7.
It is constructed by engaging the

With this configuration, when the operating body 5, which is normally moved upward by the coil spring 6, is pressed against the coil spring 6 and moved downward, the movable contact pieces 4a and 4b held by the operating body 5 also move downward. Terminal blocks 3a, 3 arranged above and below, which had been in contact only with the upper fixed terminal 2,
It comes into contact with the two fixed terminals 2 of b, causing conduction between the two fixed terminals 2, and turning on the switch.

In such a vertical switch, the conventional terminal Glock sa, 3b was constructed as shown in FIG. That is, the first fixed terminal 8 is formed in a round shape.
, a second fixed terminal 9 formed into a 7-shape. The third identification terminal 10 formed in an inverted shape is connected to each contact portion 8a,
9a, 10& are arranged in an insulated manner in a vertical line, and the respective terminal legs 8k), 9b, 10b are arranged in a horizontal line, and the above-mentioned connections fiis? L, 9a, 1oa and terminal Ji4
ab, 9ty.

The pillar was molded with synthetic resin 11 so that only part 10b was exposed.

Such terminal blocks 3a and 3b are small.

It is necessary to configure it within the limited dimensions of thinning, and the soldering of connecting legs 8b, 9b, and 1 ob must take into account the resistance to flannel and solder heat resistance. , especially the third fixed terminal 1, as shown in FIG.
When a load is applied to the connecting leg 10b of 0 in the direction of arrow A, it deforms and a gap 12 is generated, and flux flows in during soldering and adheres to the contact portion 10a, causing the movable contact pieces 4a, 4b
This caused a problem with the electrical continuity between the switch and the switch, leaving serious problems with its reliability as a switch.

OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned drawbacks of the conventional technology, and allows fixed terminals to be firmly held in synthetic resin without fear of flux flowing in during soldering.

The aim is to provide a complete line of highly reliable vertical switches.

Structure of the Invention In order to achieve the above object, the present invention provides a terminal device in which a plurality of fixed terminals are vertically arranged in a case and molded with synthetic resin, and a movable contact piece that contacts the fixed terminals is held. A cover housing a body and a coil spring that biases the operating body upward, and a cover through which a part of the operating body is inserted into the case is combined, and the fixed terminal whose contact part is located at the bottom is connected as the terminal block. A vertical part extending downward from one side of the part, a horizontal part extending laterally from one end of this part, and a connecting leg extending downward from the middle of this horizontal part, and extending at least downward. The horizontal and vertical parts are molded in synthetic resin, so that even if an external force is applied to the connecting leg, no gap will be created between it and the synthetic resin, and flux will not flow in during soldering. .

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 4 and 5 of the drawings.

The overall configuration of the vertical switch is substantially the same as that shown in FIG. 1, and is also basically similar to the terminal Glock, so only the fixed terminal, which is a feature of the present invention, will be explained here. , and the figure numbers will be explained using the same weights for the same parts as in the conventional one.

That is, an example will be described in which three fixed terminals 8, 9, and 10'i are used as the terminal blocks 3a and 3b. The first fixed terminal 8 has a cross-shaped shape with a contact portion 8a at the top, and the lower part protrudes downward from the right side of the lower surface of the synthetic resin 11 on which the fixed terminal 8°9.10 is molded for connection. The legs are 8b.

The second fixed terminal 9 has a contact portion 9a protruding from its intermediate portion, and has a square shape, with a connecting leg 1ob protruding downward from the lateral middle of the lower surface of the synthetic resin 11. The third fixed terminal 10 has a contact portion 10a located at the lowest level among the three fixed terminals 8 to 10, and has a vertical portion 100 extending downward from one side of the contact portion 10b and one end of this vertical portion 10C. It has a horizontal portion 1oa that extends laterally from the bottom, and a connecting leg 10b that extends downward from the middle of this horizontal portion 10d, and includes at least a vertical portion 10C that extends downward and a horizontal portion 10d.
is molded in synthetic resin 11.

With such terminal blocks 3a and 3b, even if a load is applied to the connecting leg 10b of the fixed terminal 10 in the direction of the arrow, the horizontal portions 1c) and d are continuously formed, so that they are deformed and combined. There is no gap between the connecting leg iob and the synthetic resin 11, and even if a gap occurs between the connecting leg iob and the synthetic resin 11, the horizontal portion 10a and the vertical portion 10c
Therefore, flux during soldering can be prevented from flowing into the contact portion 1oa and destabilizing the conduction between the movable contact pieces 4a and 4b.

Effects of the Invention As described above, in the vertical switch of the present invention, by devising the shape of the fixed terminal, there is no possibility of flux flowing in during soldering of the connecting leg and destabilizing the conduction with the movable contact piece. , there is little deformation of the connecting leg due to external force,
It also has improved mechanical strength and can be made highly reliable, making it an industrial value.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of a typical vertical switch, Figure 2 is a front view of a terminal block used in a conventional vertical switch, Figure 3 is an enlarged sectional view of the main parts of the terminal block showing problems, and FIG. 4 is a front view of a terminal block in one embodiment of the vertical switch of the present invention, and FIG. 5 is an enlarged sectional view of the main part. 1... Case, 2... Fixed terminal, 3a
, 3b...terminal block, 4a, 4b...
...Movable contact piece, 6...Operation body, 6...
Coil spring, 7...Cover, +3, 9, 10
・=-・Fixed terminal, 8&, 9a, 10a...Contact part, Bb, gb, 10b...Connection leg, ioc
...Vertical part, 10d...Horizontal part. Name of agent: Patent attorney Makoto Nakao and 1 other person 1st
Figure 4R/) Figure 5

Claims (1)

[Claims] The case houses a terminal block in which multiple fixed terminals are arranged vertically and molded with synthetic resin, an operating body that holds all the movable contact pieces that come into contact with the fixed terminals, and a coil spring that biases this operating body upward. , A cover through which a part of the operating body is inserted is coupled to this case, and - a vertical portion extending downward from one side of the contact portion serves as a fixed terminal serving as the lowest contact portion of the terminal block; It has a shape with a horizontal part extending laterally from one end of the vertical part and a connecting foot extending downward from the middle of this horizontal part, and at least the horizontal part and the vertical part of this fixed terminal are molded in synthetic resin. Vertical switch.