KR910008873Y1 - Sliding type electronic device - Google Patents

Abstract

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Description

Sliding Electronic Components

1 is a main portion perspective view of a multiple slide variable resistor according to an embodiment of the present invention.

2 is an exploded perspective view of the variable resistor of FIG.

3 is a sectional view of principal parts of a conventional multiple slide type variable resistor.

4 is an exploded perspective view thereof.

* Explanation of symbols for the main parts of the drawings

1 substrate 2 operating body

2c: guide groove 3: main body

3a: long hole 3b: protrusion

The present invention relates to an electronic component such as a slide type variable resistor and a slice switch of the present invention, and more particularly, to a guide structure of a reciprocating operating body.

3 and 4 show a conventional example of a multiple slide type variable resistor used in a graphic equalizer, which is one example of a slide type electronic component, and FIG. 3 is a sectional view of the main part, and FIG. 4 is an exploded perspective view thereof.

In these drawings, 1 denotes a substrate on which a plurality of conductive patterns (not shown) such as a resistor or a current collector are printed in parallel, and 3 denotes a main body placed on the substrate 1 to form an outline, and parallel to each other at predetermined intervals. It has a plurality of long holes 3a. 7 is a driving support disposed between the substrate 1 and the main body 3 to hold the substrate 1 and the main body 3 at predetermined intervals, and the long holes 7c parallel to each other are provided at predetermined intervals. have.

2 is an operating body which is guided by the side wall 7d of the long hole 7c installed in the driving support 7, and the reciprocating movement is free, and the operating body 2 is a lever 2a and a perturber support 2b. It is. 4 is a perturbator which is mounted on the lower surface of this perturbator support 2b and slides the said conductive pattern property. And the lever 2a of the said operation body protrudes so that a slide operation | movement may freely in the long hole 3a provided in the said main body 3.

The plurality of engaging projections 7a and 7b are integrally formed on the upper and lower surfaces of the driving support 7, and on the other hand, the plurality of engaging holes 3f and the engaging holes are respectively formed in the main body 3 and the substrate. 1b) is provided, and the engaging projection 7a inserts the engaging hole 3f of the main body and the engaging projection 7b into the engaging hole 1b of the substrate, and thermally welds them to the main body and the substrate, respectively. ), The driving support 7 and the main body 3 are integrated. In addition, the board | substrate 1 is provided with the terminal 6 electrically connected with the electrically conductive pattern of the resistor or collector which is not shown in figure.

In the multiple slide type variable resistor configured as described above, by operating the slide according to the long hole 3a of each lever 2a of the operating body 2, the perturbators provided on each slide slide on the resistor and the current collector. The output is variable corresponding to the position of the perturbator.

However, in the conventional slide type variable resistor configured as described above, a drive support for guiding the operation body can be freely reciprocated, and a space for mounting the drive support is required on the substrate, so that a plurality of slide type variable resistors are used. In the multiple slide type variable resistor used for the graphic equalizer arranged in the above, the pitch of each operating body cannot be fitted, which is a big problem in terms of miniaturization. In addition, in order to engage and fix the driving support to both the main body and the substrate, the assembling work is also worse, which inevitably increases the product cost.

Accordingly, an object of the present invention is to provide a slide-type electronic component that is not only compact but also has a low product cost since it does not require a driving support by eliminating the drawbacks of the prior art.

In order to achieve this object, the present invention provides a main body having a long hole, a substrate on which a conductive pattern is formed, an operating body sandwiched between these main bodies and the substrate, and slipped on the conductive pattern mounted on the operating body. In the slide-type electronic component provided with a moving perturbator, downward projections are provided on the side of the long hole, and guide grooves engaged with the projections are provided on the operating body, and the protrusions and the guide grooves are engaged. The operating body is characterized in that the reciprocating movement is guided freely according to the long hole.

That is, according to the above means, the reciprocating movement of the operating body is guided by engaging the downwardly projecting portion provided in the long hole side portion of the main body and the guide groove provided in the operating body, so that drive support between the main body and the substrate is unnecessary. As a result, the product cost can be resisted and the product can be miniaturized.

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described based on drawing.

1 is a cross-sectional view of main parts of a multiple slide type variable resistor according to one embodiment of the present invention, and FIG. 2 is an exploded perspective view of the prior art and the same reference numerals. In these figures, 1 is a board | substrate, 2 is an operating body, 3 is a main body, 4 is a perturbator, 5 is a click spring, and 6 is a terminal.

On the surface of the substrate 1 made of an insulating resin such as a phenol resin or an epoxy resin, conductive patterns such as a current collector or a resistor made of silver or carbon (not shown) are printed and formed at a desired position. (1) is in electrical contact with a metal terminal such as iron mounted by crimping or the like. A plurality of engagement holes 1a are provided in the substrate 1.

On the board | substrate 1, the operation body 2 of several synthetic main body is mounted. The operating body 2 is composed of a lever 2a and a perturbator support 2b, and the perturbator 4 is fixedly attached to the lower surface of the perturbator support 2b by heat welding or outer insert molding or the like. On the upper surface of the perturbator support, two guide grooves 2c are formed by sandwiching the lever 2a. On one side of the perturber support 32b, a metal click spring 5 is fixed upward by heat welding, outer insert molding, or the like.

The outer frame 3d is provided downward by a press working or the like around the main body 3 made of metal such as iron or aluminum, and the outer frame 3d corresponds to the engagement hole 1a of the substrate 1. It has the engaging piece 3e in a position. The engagement piece 3e is inserted into the engagement hole 1a and bent, and the substrate 1 and the main body 3 are integrated at a predetermined interval, and the perturber support of the operating body 2 ( 2b) is accommodated within this gap. That is, the main body 3 is provided with a plurality of long holes 3a parallel to each other at predetermined intervals, and the lever 2a of the operating body 2 protrudes from the long holes 3a. Then, projections 3b integral with the main body 3 bent by press working or the like are projected downward on both sides of the long hole 3a, and the projections 3b and the guide grooves 2c of the operating body are provided. ) Is engaged, and the engaging body 2 is guided freely in the reciprocating movement along the long hole 3a by engaging the protrusion and the guide groove. In addition, the main body is provided with a click hole 3c which latches the click spring 5 at a position where the lever 2a is located substantially at the center of the long hole 3a, a predetermined distance away from the long hole 3a. When sliding the lever 2a, it is comprised so that a click feeling may be acquired in the substantially center of the long hole 3e.

According to the above embodiment of the present invention, by operating the downward projection 3b provided on both sides of the long hole 3a of the main body 3 and the guide groove 3c provided on the operating body 2, the operating body Since the reciprocating movement is guided freely along the long hole 3a, the driving support for guiding the reciprocating movement freely is not required separately from the main body, and the space for mounting the driving support is unnecessary on the substrate. By using a part of this space, a mechanism for generating a click feeling (click hole 3c and a clutch spring 5) can be provided, and the pitch of each operating body can be fitted to reduce the size of the product.

And since the number of the engagement holes provided in the board | substrate is reduced, and also the position of the engagement hole can take the distance of the position of the outer frame of a main body and the engagement work wide, the wiring freedom degree of the conductive pattern formed on a board | substrate increases.

In addition, by reducing the number of components, the assembly work can be improved and the product cost can be reduced. And since the protrusion part which guides an operating body is formed by cutting the metal main body, the protrusion part acts like a reinforcement rib, and the strength of a product is also improved.

In the above embodiment, the substrate is an insulating substrate such as a phenol resin or an epoxy resin, but the present invention is not limited thereto. For example, an insulating film having plasticity such as a polyester film printed with a conductive pattern is formed. As the substrate, the above-described effect can also be exerted even when the holding plate such as iron or aluminum is disposed on the bottom surface of the sheet substrate.

In addition, the main body 3 does not necessarily need to be made of metal, and it is also possible to form these as a synthetic resin molded article. In this case and as an example of the fixing means between the main body and the substrate, there are means such as providing a engaging projection on the outer frame of the main body, inserting the engaging projection into the engaging hole provided on the substrate, and performing thermal welding.

Incidentally, in the above embodiment, the multiple slide type variable resistor is described, but the present invention can be applied to a slide type electronic component such as an annealing slide type variable resistor.

As described above, the downward protrusion provided in the long side of the main body and the guide groove provided in the operating body are engaged, and the engagement guides the operating body separately from the main body, because the engagement guides the reciprocating movement of the operating body. No driving support is required, and a space for placing the driving support on a substrate is also unnecessary, and the product can be miniaturized. In addition, since the number of parts is reduced, assembly workability can be improved and product cost can be reduced.

Claims (1)

A slide-type electronic component comprising a main body having a long hole, a substrate on which a conductive pattern is formed, an operating body sandwiched between the main body and the substrate, and a perturbator mounted on the operating body and sliding on the conductive pattern. And a projection provided downward on the side of the long hole, and a guide groove engaged with the protrusion is provided on the operating body, and the operating body guides the reciprocating movement freely along the long hole by engaging the protrusion and the guide groove. Slide-type electronic component, characterized in that.