JP3013024B2 - Composite electronic components - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite electronic component capable of efficiently consolidating rotary electronic components and push-button electronic components and achieving downsizing and thinning.

[0002]

2. Description of the Related Art Conventional electronic devices, such as VCRs and remote controllers thereof, have a rotary knob (rotary volume or rotary switch) for variable-speed feed / rewind in addition to push-button switches for reproduction and stop. ) Is attached.
The rotary knob for variable speed fast feed / rewind includes:
Often, a neutral point return type (one that returns to the original neutral point position when released after rotating) is used.

FIG. 14 shows these switches and volumes set to 1
FIG. 10 is a plan view showing a conventional composite electronic component 90 provided at a central location. As shown in FIG.
0, pushbutton switches 91 and 9 for reproduction and stop
A rotary knob 95 for variable speed feeding / rewinding is attached to the outside of 3 so as to surround them.
It should be noted that, as the rotation angle of the rotary knob 95 is increased, the fast feed speed or the rewind speed is increased.
When the hand is released, the spring automatically returns to the neutral point by the force of the spring, and fast-forwarding or the like stops.

[0004]

However, this type of conventional composite electronic component 90 has a structure in which the push button switches 91 and 93 and the rotary knob 95 are mounted on a single substrate, so that the integration density is low. , Rotary knob 9
Push-button switches 91 and 93 that can be mounted within 5
Was about two or three. If a larger number of pushbutton switches are to be mounted, the diameter of the rotary knob 95 becomes large, so that miniaturization cannot be achieved.

If a large number of push-button switches are forcibly mounted in the small rotary knob 95, the structure becomes complicated, leading to an increase in cost and an increase in thickness.

The present invention has been made in view of the above points, and has as its object a simple structure and a small number of components, and a large number of push-button electronic components can be easily mounted inside a rotary knob. An object of the present invention is to provide a composite electronic component whose thickness can be reduced.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a first base, a first substrate mounted on the first base and provided with a desired pattern on an upper surface thereof, A second base for mounting a pillar protruding downward on the first substrate, a second substrate mounted on the second base, and a case mounted on the second substrate; A key top attached to the case so as to be vertically movable and pressing a switch contact provided on the second substrate; a base sandwiched between the first substrate and the second base; A rotation portion that protrudes outside the two bases, has a knob on the outer periphery thereof, positions the pillars of the second base in holes formed in the bases, and rotates about the pillars of the second base. And a base of the rotary knob and the rotary knob
A pattern disposed between the first substrates and disposed on the first substrate;
And a slider which changes the output of the electronic component.

[0008]

The switch contact provided on the second substrate is turned on and off by pressing the key top. On the other hand, by rotating the rotary knob, the slider attached to the rotary knob slides on the pattern on the first substrate.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic side sectional view showing a composite electronic component 1 according to one embodiment of the present invention. In addition, in the figure, for convenience of explanation, there are portions that are actually deformed so as to be the same cross section even if the cross section is different. FIG. 2A is a plan view of the composite electronic component 1, and FIG.
(B) is a side view.

As shown in FIG. 1, this composite electronic component 1
Puts the first substrate 15 on the first base 10, mounts the second base 20 thereon, and places the second substrate 25 and the flexible substrate 30 thereon (the second substrate 25 is used for both). ), And a case 35 is placed thereon, and the key tops 40 (40-1 to 40-4) are attached to the case 35, while the first substrate 15 and the second base 20 are mounted. A rotary knob 45 is rotatably mounted between the rotary knob 45 and a coil spring 50 for urging the rotary knob 45 with a predetermined elastic force between the rotary knob 45 and the first base 10. A slider 55 is attached to the lower surface of the base 451 of the expression knob 45.

The flexible board 30 of the composite electronic component 1 is pulled out from the second board 25 and
It is led out from the lower surface of the first base 10 via the substrate 15. The flexible plate 30 is connected to the connection land portion 313 of the flexible substrate 30 by the elastic force of the press-contact spring 60 attached to the case 35 on the second substrate 25.
6 (see FIG. 6) is pressed against the connection land portion 255 (see FIG. 7) of the second substrate 25, and the first
The connection lands 315 (see FIG. 6) of the flexible board 30 are changed by the elastic force of the press-contact spring 65 attached to the board 15 to the connection lands 152 (see FIG. 4) of the first board 15.
Is pressed against.

A light guide member 70 is attached to a predetermined position of a knob 453 on the outer periphery of the rotary knob 45, and a light emitting element 75 is disposed inside the light guide member 70. The substrate 80 is pulled out to the lower surface side of the base 451 of the rotary knob 45, and a slider 85 is fixed to the drawn-out flexible substrate 80, and the slider 85 is provided on the first substrate 15 for power supply. The switch pattern 158 (see FIG. 4) is in sliding contact.

Hereinafter, each component will be described in detail.
FIG. 3 is a plan view of the first base 10. As shown in FIG. 1 and FIG. 1, the first base 10 is formed in a substantially disk shape, and a substantially flat substrate mounting surface 101 is provided on the upper surface thereof, and a cylindrical shape is provided near the outer periphery thereof. A side wall 103 is formed upright. Further, a through hole 105 for inserting the following three screws 110 is provided on the substrate mounting surface 101, and a drawing portion 305 of the flexible substrate 30 described below is provided at a predetermined position.
A through hole 107 for insertion is provided. The side wall 10
A projection 109 for locking the locking piece 501 of the coil spring 50 described below is provided inside the 3. The first base 10
A tongue-like projection 111 protrudes from the outer periphery of the projection 111, and a hole 113 for fixing to another member is provided in the projection 111.

FIG. 4 is a plan view of the first substrate 15. As shown in FIG. 1 and FIG. 1, the first substrate 15 is formed by forming a hard substrate into a substantially disk shape, and on the upper surface thereof, a switch pattern group 151 for outputting binary data of a desired shape and power supply to a light emitting element 75 described below. And a switch pattern 158 for use. The center of the power supply switch pattern 158 is printed so as to cover the insulating mask 159. Also the first
A connection land portion 152 connected to the switch pattern group 151 and the power supply switch pattern 158 is provided at a predetermined position on the substrate 15. At a predetermined position of the first substrate 15, a through-hole 153 for inserting the lead-out portion 305 of the flexible substrate 30 is provided.
A through hole 155 is provided for inserting 10 and a hole 157 is provided at a predetermined position.

FIG. 5 is a view showing the second base 20, wherein FIG. 5A is a plan view and FIG. 5B is a rear view. As shown in FIG. 1 and FIG. 1, the second base 20 is formed in a substantially disk shape, and the upper surface thereof is a substantially flat substrate mounting surface 201.
A columnar column 203 is projected from the center of the lower surface, and a slit-shaped through hole 2 is formed so as to penetrate the column 203.
Further, three holes 207 for screwing screws 110 described below, a recess 209 for accommodating a press-contact spring 65 described below, and a hole 15 of the first substrate 15 are provided on the lower surface of the pillar portion 203.
7 are provided, and the board mounting surface 201 has four screws 100 described below.
A through hole 213 for insertion is provided. Further, a band-shaped recess 215 for accommodating the drawer 305 of the flexible board 30 is provided in the board mounting surface 201.

FIG. 6 is a developed plan view of the flexible substrate 30. As shown in the drawing, the flexible substrate 30 includes two substantially circular switch substrate portions 301 and 303 and a strip-shaped lead portion 30 pulled out from one of the switch substrate portions 303.
5. Here, the switch board unit 30
Five contact portions 309 are provided on 1, and five contact portions 311 are also provided on the switch board portion 303 at positions facing the five contact portions 309. A second substrate 2 described below is provided at a predetermined position on the switch substrate 303.
5 is provided with a connection land portion 313 for connecting to the connection land portion 255 (see FIG. 7) provided on the connection land 5. A connection land 315 for connecting to a connection land 152 (see FIG. 4) provided on the first substrate 15 is provided at a predetermined position in the drawer 305. And these contact parts 3
09 is drawn out to the end of the lead-out portion 305 by the circuit pattern 307.

On the other hand, each of the switch board portions 301 and 303 has three through holes 3 for inserting four screws 100.
17, 323 and one notch 319, 325 are provided, and a hole 32 for inserting the light emitting element 73 is provided substantially in the center thereof.
1,329 are provided.

Further, a hole 329 for exposing the connection land portion 313 is provided at a position facing the connection land portion 313 of the switch substrate portion 301.

A click plate 331 is attached to the back side of the five contact portions 311 of the switch board portion 303, as shown by a dotted line in FIG.

FIG. 7 is a plan view of the second substrate 25. Second
The substrate 25 is formed by forming a hard substrate into a substantially disk shape and providing a circuit pattern 251 of a predetermined shape on the upper surface thereof. The circuit pattern 251 includes a pattern portion 253 for connecting the light emitting element 73 described below and a connection land portion 255 for connecting to the connection land portion 313 of the flexible substrate 30. The second substrate 25 has three through holes 257 for inserting four screws 100 described below and one notch 2.
59 are provided.

FIG. 8 is a rear view of the case 35. The case 35 is formed in a substantially disk shape, and has four holes 35 for inserting key tops 40-1 to 40-4 at predetermined positions.
1 is provided. A hole 353 for screwing the four screws 100 is provided at a predetermined position on the back surface thereof, and a concave portion 355 for accommodating the press-contact spring 60 described below is provided at the predetermined position.

Next, as shown in FIGS. 1 and 2, the key tops 40-1 to 40-4 are formed so as to be inserted into the four holes 351 of the case 35, respectively. A rod 401 is provided, and a central key top 40-
For No. 1, a light guide member 403 is attached inside. The light guide member 403 is incorporated so as to be exposed from the lower surface of the key top 40-1 to the upper surface.

FIG. 9 is a view showing the rotary knob 45.
2A is a plan view, and FIG. 1B is a rear view. As shown in FIG. 1 and FIG. 1, the rotary knob 45 is provided on the outer periphery of a substantially disk-shaped base 451, and the knob 45 rises upward.
3 is provided.

Here, a through hole 455 is provided at the center of the base 451 so as to rotatably pass through the column 203 of the second base 20, and a slide shown in FIG. Projections 4 for fixing the slider 55 and the slider 85 respectively
57, 459 are provided. A C-shaped projection 461 protrudes from the lower surface of the base 451. At a predetermined position of the knob 453, a hole 463 for attaching the light guide member 70 shown in FIG. 1 is provided.

FIG. 10 is a plan view showing the coil spring 50. As shown in the drawing, the coil spring 50 is wound 2.5 times, and locking pieces 501 and 501 are provided at both ends thereof.

FIG. 11 is a view showing the press contact spring 60. The press-contact spring 60 is made of an elastic metal plate and has three resilient claws 6.
01 is bent to the back side, and the sharp nail 6
03 is provided.

FIG. 12 is a view showing the press-contact spring 65. The press-contact spring 65 is also made of an elastic metal plate, and has eight spring claws 6.
51 is bent to the back side, and sharp nails 6
53 are provided.

FIG. 13 is a view showing the light emitting element 75, the flexible substrate 80, and the slider 85. Flexible substrate 8
On 0, two circuit patterns 801 are provided,
Land portions 803 and 805 are provided at both ends, respectively. The light emitting element 75 is connected and fixed to one land 803, and the slider 85 is connected and fixed to the other land 805.

In order to assemble the composite electronic component 1, first, as shown in FIG.
The light guide member 70 is attached to 63. Also, a hole (not shown) provided in the slider 55 shown in FIG. 1 is inserted into a projection 457 (see FIG. 9B) on the back surface of the rotary knob 45, and the tip is heat-sealed and attached. 9 (b)
13), a hole 807 of the land portion 805 of the flexible substrate 80 and a hole 851 of the slider 85 are inserted, and the ends thereof are fixed by heat caulking. Note that the back surface of the portion of the flexible substrate 80 shown in FIG. 13 to which the light emitting element 75 is attached is adhered to the inner wall of the rotary knob 45 with double-sided tape as shown in FIG. Also, as shown in FIG.
The light emitting element 7 shown in FIG.
3 is fixedly connected.

On the other hand, the concave portion 2 on the back surface of the second base 20 shown in FIG.
A press-contact spring 65 shown in FIG. At this time, the acute angle claw 653 of the press contact spring 65 is
Is strongly engaged with and fixed to the inner surface of the.

Similarly, the press-contact spring 60 shown in FIG. 11 is press-fitted into the concave portion 355 on the back surface of the case 35 shown in FIG. At this time, the acute angle claw 603 of the press contact spring 60 is
5 is strongly engaged and fixed to the inner surface.

A stack of the two switch board portions 301 and 303 of the flexible board 30 shown in FIG. 6 is placed on the second board 25 as shown in FIG. 305 is folded back to the back side of the second substrate 25 and its tip is inserted into the through hole 20 of the second base 20.
5, the second substrate 2 is placed on the second base 20.
5 and the key tops 40 on the second substrate 25.
-1 to 40-4 and the case 35 are attached, and the second base 20
And the case 35 are integrally fixed with the screw 100.

Next, the protrusion 461 on the back surface of the rotary knob 45
The coil spring 50 is housed inside. At this time, both locking pieces 501 (see FIG. 10) of the coil spring 50 are locked on both end sides 461a (see FIG. 9B) of the projection 461.

Next, the lead portion 305 of the flexible board 30 drawn out from the through hole 205 of the second base 20 is inserted into the through hole 153 of the first substrate 15 and the through hole 107 of the first base 10, and The first substrate 15, the rotary knob 45, and the second base 20 are placed on the first base 10. Then, the first base 10 and the second base 20 are integrally fixed with screws 110.
Thus, the composite electronic component 1 is completed.

At this time, both locking pieces 501 of the coil spring 50
Are the side portions 109a of the two protrusions 109 of the first base 10.
(See FIG. 3).

The switch pattern group 1 of the first substrate 15
A slider 55 (see FIG. 1) is in sliding contact with 51 (see FIG. 4), and a slider 85 is in sliding contact with the power supply switch pattern 158. When the rotary knob 45 is in the neutral position, the slider 85 is located on the insulating mask 159 at the center of the switch pattern 158.

The connection land 152 of the first substrate 15
4 (see FIG. 4), the connection land 315 (see FIG. 6) of the flexible substrate 30 is pressed and connected by a pressure contact spring 65. Also, the connection land portion 25 of the second substrate 25
5 (see FIG. 7), the connection land portion 313 (see FIG. 6) of the flexible substrate 30 is pressed and connected by the press contact spring 60. That is, the switch patterns 151 and 158 on the first substrate 15 and the circuit pattern 251 on the second substrate 25 are all connected to the flexible substrate 30, and therefore, the lead-out portion 305 of the flexible substrate 30
Is connected to all electric circuits in the composite electronic component 1.

Accordingly, the key tops 40-1 to 40-4 shown in FIG.
When 0-4 is pressed, the switch contacts (opposite contacts 309, 311 (see FIG. 6)) of the flexible substrate 30 are turned on via the click plate 331 of the flexible substrate 30, and the output is taken out to the drawer 305. It is.

At the same time, the leading portion 30 of the flexible substrate 30
5 to the light emitting element 73 on the second substrate 25, whereby the light guide member 403 of the key top 40-1 can be brightly illuminated.

On the other hand, when the rotary knob 45 is rotated, the slider 55 is moved to the switch pattern group 151 on the first substrate 15.
(See FIG. 4.) The on / off state is switched by sliding on the upper surface, and binary data corresponding to the rotation angle of the rotary knob 45 can be extracted to the extraction portion 305 of the flexible substrate 30.
At the same time, the slider 85 slides on the power supply switch pattern 158 (see FIG. 4) of the first substrate 15. Since the insulating mask 159 is printed at the center of the two power supply switch patterns 158, when the rotary knob 45 is at the neutral point position, the two power supply switch patterns 158 are not turned on, but the rotary knob 45 is not turned on. Is rotated to the left or right, it comes off the insulating mask 159, and the space between both switch patterns 158 is turned on. Therefore, the lead portion 30 of the flexible substrate 30
If a predetermined voltage is applied between both switch patterns 158 from the fifth side, the light emitting element 75 on the flexible substrate 80 is only turned when the rotary knob 45 is rotated left and right.
Can be turned on.

The rotation of the rotary knob 45 is performed against the elastic force of the coil spring 50. Therefore, when the rotary knob 45 is released, it automatically returns to the original neutral position.

In the above embodiment, the first substrate 15 is formed of a hard substrate, and the second substrate is formed of a hard second substrate.
Although the first substrate 15 is composed of a flexible substrate, and the second substrate is composed of only a flexible substrate, the first substrate 15 may be composed of a flexible substrate.

That is, like the composite electronic component 1 ′ shown in FIG. 15, a second substrate 25 ′ consisting of only a flexible substrate provided with both switch contacts (portion where the click plate 331 is attached) and the light emitting elements 73 is provided. A switch pattern group (corresponding to the switch pattern group 151 in FIG. 4) which is placed on the two bases 20 while one of the sliders 55 is in sliding contact with a power supply switch pattern in which the slider 85 is in sliding contact (FIG. 4). A first substrate 15 ′ made of only a flexible substrate provided with a power supply switch pattern 158 shown in FIG. 1) is placed on the first base 10, and these first and second substrates 15 ′, 2
5 'may be configured by crawling one flexible substrate. In this embodiment, there are two drawers 305 '. The same components as those of the embodiment shown in FIG. 1 are denoted by the same reference numerals.

According to this structure, the first substrate 15 'and the second substrate 25' can be constituted by one flexible substrate.
In addition, the press-contact springs 60 and 65 of the embodiment shown in FIG.

[0045]

As described above in detail, according to the composite electronic component of the present invention, the second substrate is arranged at a predetermined interval on the first substrate, and the first substrate and the second substrate are arranged. Slider attached to the base of rotary knob inserted between
Since the rotary electronic component is formed by sliding contact with the pattern provided on the substrate, and the push-button electronic component is formed on the second substrate, a large number of rotary knobs can be easily formed therein without increasing the diameter of the rotary knob. The present invention has an excellent effect that the push-button type electronic components can be stored, various electronic components can be efficiently integrated, and miniaturization and thinning can be realized.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view showing a composite electronic component 1 according to one embodiment of the present invention.

FIG. 2A is a plan view of the composite electronic component 1, and FIG. 2B is a side view.

FIG. 3 is a plan view of a first base.

FIG. 4 is a plan view of the first substrate 15;

5A and 5B are diagrams showing the second base 20, wherein FIG. 5A is a plan view and FIG. 5B is a rear view.

FIG. 6 is a developed plan view of the flexible substrate 30.

FIG. 7 is a plan view of a second substrate 25.

8 is a rear view of the case 35. FIG.

FIG. 9 is a view showing a rotary knob 45, and FIG.
Is a plan view, and FIG.

FIG. 10 is a plan view showing a coil spring 50;

FIG. 11 is a view showing a pressing spring 60;

FIG. 12 is a view showing a pressure contact spring 65;

FIG. 13 is a diagram showing a light emitting element 75, a flexible substrate 80, and a slider 85.

FIG. 14 is a plan view showing a conventional composite electronic component 90.

FIG. 15 is a schematic side sectional view showing a composite electronic component 1 'according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Composite electronic component 10 1st base 15 1st board 151 Switch pattern group 158 Power supply switch pattern 20 2nd base 203 Column part 25 2nd board 251 Circuit pattern 30 Flexible board 307 Circuit pattern 309, 311 Contact part 35 Case 351 Hole 45 Rotary knob 451 Base 453 Knob 455 Through hole 50 Coil spring 55 Slider 60, 65 Pressure contact spring 70 Light guide member 75 Light emitting element 80 Flexible board 85 Slider

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H01H 25/00

Claims (2)

(57) [Claims] 1. A first base, a first substrate mounted on the first base and provided with a desired pattern on an upper surface thereof, and a column protruding downward are formed on the first substrate. A second base mounted on the second base, a second substrate mounted on the second base, a case mounted on the second substrate, and the second substrate mounted on the case so as to be vertically movable. A key top for pressing a switch contact provided thereon, a base sandwiched between the first substrate and the second base, and a knob protruding from the base to the outside of the second base and providing a knob on the outer periphery thereof. A rotary knob for positioning the column of the second base in a hole provided in the base and rotating about the column of the second base; and a base of the rotary knob.
And a pattern provided between the first substrate and the first substrate.
A composite electronic component comprising: a slider that changes the output of the composite electronic component. 2. A light guide member is attached to a predetermined position of a knob on the outer periphery of the rotary knob, a light emitting element is arranged inside the light guide member, and a flexible substrate connected to the light emitting element is connected to a base of the rotary knob. 2. The composite die according to claim 1, wherein the slider is fixed to a portion of the flexible substrate that is pulled out, and the slider is brought into sliding contact with a pattern provided on the first substrate. Electronic components.