KR100241561B1 - Slide type electric components - Google Patents

Abstract

SUMMARY OF THE INVENTION In a slide type electrical component, there is provided a thin slide type electrical component that is thin, low cost, and stable in operation.

A passive element such as a conductor is formed on one side, and a substrate having a terminal formed at an end in the longitudinal direction, and a fixed plate and an operating body integrally formed with a slider piece for sliding the passive element. Since it stops and interposes the said board | substrate between the said fixed plate and an operation body, it becomes thin and cost-effective.

Description

SLIDE TYPE ELECTRIC COMPONENTS {SLIDE TYPE ELECTRIC COMPONENTS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to slide type electrical components such as slide type variable resistors and slide type switches, and more particularly to slide type electrical components having a thin thickness.

Fig. 7 is a plan view showing a slide type variable resistor in a conventional slide type electric component, and Fig. 8 is a longitudinal sectional view thereof. 7 and 8, a slide type variable resistor, which is a conventional slide type electric component, includes a substrate 1 made of a material such as glass epoxy resin, and a band-shaped passive formed by printing or the like on the substrate 1. A resistor 2 and a conductor 3 as elements, a plurality of terminals 4 fixed by small holes 5 at both ends in the longitudinal direction of the substrate 1, and a substantially cylindrical shape and a handle on one surface thereof. (Lever) 7a consists of a slider base 7 made of synthetic resin formed on the outer side, and a slider 10 made of metal sheet fixed to the slider base 7 by insert molding or the like.

In addition, the slider base 7 has a wall surface 7b sandwiching the substrate 1. And the slider base 7 inserts the board | substrate 1 in the process before providing the terminal 4 to the board | substrate 1 with the small hole 5 in it. As a result, the slider 10 fixed to the slider support 7 is freely mounted to the substrate 1 in a state in which elasticity is brought into contact with a passive element composed of a resistor 2 and a conductor 3 on the substrate 1. do.

Then, when the handle (lever) portion 7a protruding outward of the slider support 7 is gripped by a finger or the like, the slider support 7 reciprocates along the longitudinal direction of the substrate 1, In response to this, the slider 10 slides on the resistor 2 and the conductor 3 so that the resistance value changes. In addition, reciprocation is restricted by the bottom wall portion of the slider support 7 contacting the side angle portion of the terminal 4, in other words, the terminal 4 functions as a stopper. The slider support 5 is formed so that it may always be located in a predetermined range.

In addition, the slide type variable resistor as described above is provided on the circuit pattern substrate 9 by connecting the terminal 4 to a circuit pattern (not shown) by solder or the like and exhibits its function.

But. Such a slide type variable resistor is provided on the circuit pattern substrate 9 because the resistor 2 and the conductor 3 formed on the substrate 1 protrude in the direction of the substrate 1 surface. In this case, since the surface of the substrate 1 is provided perpendicularly to the circuit pattern substrate 9, the resistor 2 or the conductor 3 is exposed away from the circuit pattern substrate 9, so that dust or the like adheres. easy.

Moreover, the board | substrate 1 of a slide type variable resistor is formed with glass epoxy resin etc. from the surface of heat resistance request | requirement. In general, the glass epoxy resin is white or gray, and when the variable resistor is assembled to an electronic device (set), the inside of the device is visually exposed from the opening of the device that exposes the handle portion 7a of the slide type variable resistor. You can check it. It is preferable that the part which can visually check the inside of this apparatus is a black system. When the board | substrate 1 was formed with the resin material of white or gray system, it was necessary to arrange what is called a shade member which consists of a black cloth etc. in the opening part of an apparatus so that the inside of an apparatus cannot be visually recognized from a handle part.

In addition, the movement of the slider support 7 of the slide type variable resistor being restricted by the terminal 4 requires that the terminal 4 also serves as a stopper member, so that a design sufficient for the installation strength of the terminal 4 is required.

In addition, the above slide type requires a step of passing the substrate 1 through the slider support 7 to which the slider 10 is fixed as an assembly step, and the problem that the slider 10 is deformed in the penetrating step is problematic. And cost increase.

And since the slider support 7 is a substantially cylindrical shape, and the passive element of the board | substrate 1 is sandwiched, the electric component is equal to the thickness of the wall surface 7b of the slider support 7 which pinches | interposes the board | substrate 1 between. The thickness of is increased, which hinders thinning.

When the slide type variable resistor as described above is damaged or is assembled in an electronic device, a shade member for covering the slide type variable resistor is disposed, or dust adheres to a resistor on a substrate, which may hinder stable operation. .

1 is an exploded perspective view showing a first embodiment of a slide-type electrical component of the present invention;

2 is a plan view showing a first embodiment of a slide-type electric component of the present invention;

3 is a cross sectional view showing a first embodiment of a slide-type electric component of the present invention;

4 is a longitudinal sectional view showing a first embodiment in which the slide-type electric component of the present invention is mounted on a circuit pattern board;

5 is a perspective view showing another embodiment of the operating body of the slide-type electrical component of the present invention;

6 is a cross-sectional view showing another embodiment of a slide type electrical component of the present invention;

7 is a plan view showing a conventional slide-type electrical component,

8 is a longitudinal sectional view showing a conventional slide type electrical component.

※ Explanation of symbols for main parts of drawing

1: Substrate 2: Resistor (Passive)

3: conductor (passive element) 4: terminal

5: eyelet 6: casing

6c: protrusion 7: slider base

7a: operation handle 8: fixing plate

8a: Slider Part 9: Circuit Pattern Board

The first means for solving this problem comprises a fixing plate and an operating body which are formed integrally with a substrate having a passive element formed on one surface thereof, a terminal having a terminal formed at an end in the longitudinal direction, and a slider piece for sliding the passive element. The fixed plate and the operating body are stopped, and the substrate is interposed between the fixed plate and the operating body.

The second means includes a fixing plate, an operating body, and a casing for supporting the substrate, on which a passive element is formed on one surface, a substrate having terminals formed at an end in the longitudinal direction, a slider plate integrally formed with a slider piece for sliding the passive element. And the fixing plate and the operating body are stopped, and the substrate and the casing are interposed between the fixing plate and the operating body.

The third means is provided by providing a protruding portion at the end of the casing, wherein the protruding portion and the operating body abut together to restrict the sliding range of the operating body.

The fourth means is that the casing is made of a black molding resin material.

The fifth means is that the protruding direction of the terminal from the substrate is the surface side on which the passive element of the substrate is formed.

The sixth means is provided when the passive element of the substrate is directed toward the circuit pattern substrate surface when the terminal is provided on the circuit pattern substrate.

The seventh means includes a substrate having a passive element formed on one surface thereof and a terminal having a terminal formed at an end portion thereof in the longitudinal direction, and an operating body provided with a slider piece. This is because the passive element of the substrate is directed toward the circuit pattern substrate surface when the terminal is provided on the surface side where the element is formed and the terminal is provided on the circuit pattern substrate.

(Example)

Hereinafter, the Example of this invention is described in detail.

1 is an exploded perspective view showing a slide type variable resistor in a slide type electric component according to an embodiment of the present invention. 2 is a plan view showing a slide type variable resistor according to an embodiment of the present invention. 3 is a cross-sectional view showing a slide type variable resistor of an embodiment of the present invention. 4 is a longitudinal sectional view showing a slide type variable resistor of an embodiment of the present invention.

In Fig. 1, a band-shaped resistor 2 and a conductor 3 as passive elements are printed on one surface of a substrate 1 made of a material having heat resistance such as laminated phenol resin and glass epoxy resin. It is formed by. At each end of the resistor 2 and the conductor 3, four terminals 4 fixed to the substrate 1 by the small holes 5 are arranged. Further, the four terminals 4 are bent from the substrate 1 to the surface side on which the resistor 2 and the conductor 3 are formed, and protrude from the substrate 1. The tip portion 4a of the terminal 4 is formed in the longitudinal direction of the substrate 1 and is bent in parallel with the circuit surface 9a of the circuit pattern substrate 9 described later.

The casing 6 made of glass-reinforced nylon, glass-reinforced polyphenylene sulfide, or the like having excellent heat resistance has an approximately "-" shape for supporting the resistor 2 and the conductor 3 of the substrate 1, and has sidewalls. Protrusions formed at the respective end portions in the longitudinal direction of the main body portion 6a and the casing 6 including the 6a ', and covering the end portions of the substrate 1 provided with the small holes 5 of the terminals 4. 6c and a pair of through holes 6b communicating with the through holes 5a of one of the small holes 5 on the bottom wall of the protrusions 6c, and a circuit pattern substrate on the side walls of the protrusions 6c. 9) A positioning projection 6d for positioning the present variable resistor on (see FIG. 3) and an end portion 6e which abuts on the circuit pattern substrate 9 are formed. In addition, the through-hole 6b of the casing 6 is a guide hole of the assembly jig at the time of assembling this slide type electric component mentioned later.

The operating body is provided with an operating knob 7a protrudingly arranged and a support 7b having an approximately " C " shape extending from the operating knob 7a. The 1st contact part 7c is formed in the bottom wall part of the said support part 7b, and the 2nd contact part 7d is formed in the side part part. The first contact portion 7c is in contact with a bottom portion that is the main body portion 6a of the casing 6 and faces the surface on which the substrate 1 is supported. The second contact portion 7d abuts against the side wall 6a 'of the main body portion 6a of the casing 6, each of which contributes to smooth sliding of the operating body. Four fixing portions 7e are formed at the end portions of the substantially 7 " -shaped support portions 7b.

Incidentally, the bottom wall portion is formed with an angled hole, but this hole is a hole necessary for resin molding the second contact portion 7d with a mold.

The casing 6 is a molding material such as glass-reinforced nylon, and is made of a black molding material. Moreover, the operation body is also comprised by the same molding material.

The fixed plate 8 consists of a flat plate part and the slider piece 8a, and is formed with metal materials, such as foil and phosphor bronze, for example. Specifically, four mounting holes 8b through which the fixing portions 7e of the operating body penetrate through the flat plate portions of the fixing plate 8 are formed. Moreover, a pair of slider pieces 8a which are elastically contacted with the said resistor 2 and the conductor 3 respectively formed in strip shape are formed. The slider piece 8a is formed by continuous punching and bending processing when the fixed plate 8 is formed.

In this punching and bending process, the hoop-shaped foil and phosphor bronze are first punched into a flat plate by a press die, and then the portion that becomes the slider piece 8a from the punched portion is placed in the resistor 2 of the substrate 1. And the conductor 3 are bent to overlap each other on the back surface side of the flat plate in order to make elastic contact. In addition, the fixed plate 8 is formed by punching the bent hoop-shaped gourd or phosphor bronze.

In addition, the flat plate portion of the fixing plate 8 has four mounting holes 8b formed at positions opposite to the four fixing portions 7e formed on the operating body, and to increase the bending strength of the fixing plate 8. The projection 8c is formed between the installation holes 8b.

Moreover, although the Example mentioned above demonstrated the electrical component which consists of the board | substrate 1, the casing 6, the operation body, and the fixed plate 8, this invention is comprised even without the casing 6. As shown in FIG.

Next, the assembling process of the present embodiment will be described.

First, the board | substrate 1 in which the resistor 2 and the conductor 3 were formed in strip shape, and the four terminals 4 fixed by the small hole 5 were protruded, and the casing 6 of the casing 6 was provided. It puts on the main-body part 6a. And the support part 7b of an operating body is inserted so that the outer side of the said main body part 6a may be enclosed. At this time, the through hole 6b of the casing 6 and the hole of the small hole 5 of the substrate 1 are used for positioning the assembling position by the assembling jig. Then, it penetrates the four fixing | fixed parts 7e of an operating body, and arrange | positions in the installation hole 8b of the fixing plate 8. Thereafter, the four fixing portions 7e are heated and deformed to sandwich the substrate 1 and the casing 6 by the operating body and the fixing plate 8.

In this way, the assembled slide type variable resistor inserts and positions the projection 6d for positioning in a predetermined hole provided in the circuit pattern substrate 9, and on the circuit pattern substrate 9 Four terminals 4 are placed on the formed land portions (not shown), and are fixed on the circuit pattern substrate 9 by soldering with a reflow furnace or the like. At this time, the resistor 2 on the substrate 1, the conductor 3, and the slider piece 8a are arranged to face the circuit pattern substrate 9.

In addition, the operation of the slide type variable resistor of the present embodiment will be described.

When the operation handle 7a of the operating body is gripped by a finger or the like, the slider piece 8a of the fixed plate 8 fixed to the operating body reciprocates (slids) along the longitudinal direction of the substrate 1 and accompanies it. The slider piece 8a slides on the resistor 2 and the conductor 3 so that the resistance value is changed.

Moreover, the support part 7b extended to the operation handle 7a of the operation body is formed, The 1st contact part 7c is formed in the bottom wall part of the said support part 7b, and the 2nd contact part 7d is provided in the side part part. Is formed, the first contact portion 7c contacts the bottom portion facing the surface on which the substrate 1 is supported as the main body portion 6a of the casing 6, and the second contact portion 7d contacts the casing. It comes into contact with the side wall 6a 'of the main-body part 6a of (6), and these contact parts 7c and 7d act like a rail.

In addition, in this invention, since the restriction | limiting of the sliding range of the operation handle 7a of an operating body is performed by the protrusion part 6c of the casing 6, the terminal 4 does not need to function as a stopper.

Next, FIGS. 5 and 6 will be described. Figure 5 is a perspective view showing another embodiment of the operating body of the slide-type electrical component of the present invention, Figure 6 is a cross-sectional view showing another embodiment of the slide-type electrical component of the present invention. In other embodiments, the forming direction of the operating knob 7a 'integrally formed on the support 7b of the operating body becomes perpendicular to the surface of the bottom wall of the supporting part 7b, and thus the operating body is substrated. When assembling to (1), the operation knob 7a 'is assembled so as to be perpendicular to the plane on which the resistor 2 and the conductor 3 of the substrate 1 are formed.

The other structure is the same as that of the said Example. Therefore, the operation of the electric parts after the assembling process and assembling are the same, and thus description thereof is omitted.

In the present invention, an assembly process of a slide type variable resistor is performed by interposing a substrate between the fixed plate and the operating body and integrally forming a slider piece on the fixed plate that is engaged with the operating body. Can be assembled by simply stacking them in sequence. Therefore, assembly becomes easy.

In the present invention, a step of assembling a slide type variable resistor is provided by interposing a substrate and a casing between the fixed plate and the operating body and integrally forming a slider piece on the fixed plate to stop the operating body. The substrate can be assembled on the casing and the fixing plate on the substrate can be assembled one after another. Therefore, assembling becomes easy, the substrate is protected by the casing and the operating body is supported by the casing, so that the operating body can be stably operated.

Moreover, in this invention, since the projection of the edge part of a casing and an operation body contact | abut, and restrict the sliding range of an operation body, it becomes a stopper mechanism of a stable operation body compared with the structure where an operation body abuts on a terminal. As a result, the fixed strength requirement for the substrate of the terminal is reduced.

In addition, in the present invention, the casing is made of a black molding resin material, so that when the slide-type electrical component of the present invention is assembled to the set of the electronic device, the blocking member so that the inside cannot be visually seen from the gap between the moving parts of the operation knobs. There is no need to place them.

Further, in the present invention, since the direction of protruding from the board of the terminal is the side of the surface on which the passive elements of the substrate are formed, the passive element of the substrate is arranged toward the surface of the circuit pattern substrate when the slide-type electric component is provided on the circuit pattern substrate. . For this reason, passive elements such as conductors and resistors can be protected from environmental changes such as dust and emulsification by the circuit pattern substrate, and stable performance of the slide-type electric parts can be maintained.

Claims (6)

It consists of a substrate having a passive element formed on one side and a terminal having a terminal formed at an end in the longitudinal direction, a fixed plate having integrally formed a slider piece for sliding the passive element, and an operating body for holding the substrate. The support portion has a bottom wall and a pair of side walls extending vertically along the side surface of the substrate from an end of the bottom wall, and hangs the fixing plate at the ends of the pair of side walls to stop the substrate from the support portion. Sliding electrical component, characterized in that for holding. A passive plate is formed on one side and a terminal is formed at an end portion thereof in the longitudinal direction, a fixed plate having integrally a slider piece for sliding the passive element, a casing for supporting the substrate, and a housing for storing the substrate and the casing. Made of an operating body having a support, The support portion has a bottom wall and a pair of sidewalls extending along the side of the casing from an end of the bottom wall, and stops the fixing plate at the ends of the pair of sidewalls to stop the substrate and the casing on the support portion. A slide type electrical component, characterized in that the holding. The method of claim 2, A protruding portion is provided at an end of the casing, and the protruding portion and the operating body come into contact with each other to regulate a sliding range of the operating object. The method of claim 2 or 3, And the casing is made of a black molding resin material. The method of claim 1, When the passive element is formed on one side and the protruding direction of the terminal formed on the substrate on which the terminal is formed at the end in the longitudinal direction is the surface side on which the passive element of the substrate is formed, the terminal is provided on the circuit pattern substrate. The passive component of the slide type electrical component, characterized in that is installed toward the circuit pattern substrate surface. The method of claim 2, When the passive element is formed on one side and the protruding direction of the terminal formed on the substrate on which the terminal is formed at the end in the longitudinal direction is the surface side on which the passive element of the substrate is formed, the terminal is provided on the circuit pattern substrate. The passive component of the slide type electrical component, characterized in that is installed toward the circuit pattern substrate surface.

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