JPH05205941A - Composite electronic component and manufacture of same - Google Patents

Abstract

PURPOSE:To obtain a composite electronic component obtainable by forming a plurality of pieces of passive circuit elements of one kind or plurality of kinds of a coil, a capacitor and a resistor into a single component en bloc. CONSTITUTION:A composite electronic component is manufactured through a first process for obtaining a laminated material 10 with patterned electrodes, which form a composite circuit at the time when a wide insulator sheet 11 is bent in a folding screen form in the direction perpendicular to the longitudinal direction of the sheet 11, and are arranged on the front and back of the sheet 11 at constant intervals, a second process for making this material 10 bent in a folding screen form in the longitudinal direction at sites shown by arrows (X), a third process in which the material 10 is pressed while being heated and is molded in a folded folding screen form, and a fourth process for cutting the material 10 in the unit of element between the electrodes.

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 in which a plurality of passive circuit elements of one type or a plurality of types of coils, capacitors and resistors are grouped together to form a single component and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, as a component in which a plurality of passive circuit elements such as a coil, a capacitor, and a resistor are grouped and compounded, a composite coil, a compound capacitor, in which a plurality of passive circuit elements of the same type are grouped and unified, Compound resistance is known.

[0003]

To form a circuit such as a transformer or a filter by combining a plurality of passive circuit elements of different types into a single composite electronic component,
Moreover, there has been no method for manufacturing a composite electronic component suitable for mass production.

[0004]

Therefore, the composite electronic component of the present invention was conceived in order to solve such a problem, and the type of the composite electronic component on the surface of the insulator sheet bent like a folding screen A plurality of different passive circuit elements are formed as pattern electrodes.

The method for producing a composite electronic component of the present invention is to obtain a laminated body in which pattern electrodes are arranged at regular intervals on a sheet of a wide insulating material in a direction intersecting with the longitudinal direction of the sheet. 1 step, 2nd step of bending this laminated body in a folding screen shape in the longitudinal direction, 3rd step of pressing and forming into a folded folding screen shape, and cutting into element units between the above pattern electrodes And the fourth step.

[0006]

【Example】

(First Embodiment) T as shown in the equivalent circuit of FIG.
An example of forming a mold LC filter will be described.

As shown in the front view (a) and the cross-sectional view (b) of FIG. 2, capacitor electrodes are formed on both sides of a wide insulating sheet 11 in a direction intersecting the longitudinal direction of the sheet 11. The first strip-shaped electrodes 21 and 22 and the second strip-shaped electrodes 23 and 24 are arranged so as to overlap each other, and further, the first strip-shaped electrodes
One end is connected to the ends of 21, 22 and is arranged in parallel with the first and second strip-shaped electrodes 21, 22, 23, 24, and the pattern electrodes having the bending electrode 30 serving as a coil are formed at regular intervals. Laminated body 10 which is provided and covered with an insulating sheet 12
To prepare.

The bending electrode 30 serving as the coil is the sheet 11
The first conductors 31 and 32 arranged in a zigzag pattern in the direction intersecting with the longitudinal direction of the are connected alternately by the second conductors 33 in the longitudinal direction so as to be continuous in a concavo-convex pattern. Is provided, and each position of the conductor 33 that serves as a bent portion (arrow X)
Are arranged so as to be aligned along the longitudinal direction of the sheet 11.

The pattern electrodes arranged on the front and back of the laminated body 10 are arranged at regular intervals with reference to the positioning holes 19 provided at the ears on both sides of the laminated body 10.

Next, an explanation will be given of an apparatus for alternately folding the laminated body 10 in a folding screen shape in the opposite direction so that the longitudinal folds are formed.

As shown in FIG. 3, a supply reel 3 for continuously supplying the laminated body 10 and a bending consisting of upper teeth and lower teeth for bending the laminated body 10 in a folding screen shape in the longitudinal direction. A device 4, an ear removing device 5 that cuts and removes an ear of the laminated body 10, a roller 6 that pulls out the folded laminated body 10a, and a molding device 8 that presses and molds while heating.
It is composed of a cutting device 9 that cuts the molded product one by one.

As shown in the sectional view of FIG. 4, the folding device 4 comprises upper teeth 41 and lower teeth 42, and its inlet (B- in FIG. 3).
In (B), as shown in (b) of FIG. 4, the wide and shallow teeth face each other so as to mesh with each other from above and below, and at the outlet (C-C of FIG. 3), (c) of FIG. As shown in FIG. 4B, the deep teeth face each other so as to mesh with each other from above and below, and in the middle of the inlet and the outlet, as shown in the plan view of FIG. The shape shown in FIG. 4 is continuously deformed to the shape shown in FIG.

The upper teeth of the folding device 4 are arranged so that the laminated body 10 can smoothly pass through the folding device 4 with little friction.
A vibrator (not shown) that applies ultrasonic vibrations to the lower teeth 41 and the lower teeth 42 is provided.

While applying ultrasonic vibration to the upper teeth 41 and the lower teeth 42 of the folding device 4, the space between the upper teeth and the lower teeth is shown in FIG.
After passing through 10 and removing the ears while pulling it out by the roller 6, it is guided to the molding device 8.

The laminated body 10a pulled out in a folded folding screen shape is solidified into a rod shape when pressed in the molding apparatus 8 while being heated.

Then, the cutting device 9 cuts the rod-shaped solidified body 10b between the pattern electrodes.
As shown in the perspective view of FIG. 3, a T-type LC filter circuit element having terminal electrodes 15, 15, 38 on the front and back can be obtained.

That is, the first strip-shaped electrodes 21 and 22 form a capacitor together with the second strip-shaped electrodes 23 and 24 with the dielectric sheet 11 sandwiched therebetween, and the bent electrode 30 is bent to form a coil. An LC filter circuit element having three terminals can be obtained.

(Second Embodiment) An embodiment for forming a π type LC filter as shown in the equivalent circuit of FIG. 1B will be described.

Therefore, as shown in the front view (a) and the rear view (b) of FIG. 6, capacitors are provided on both sides of the wide insulating sheet 11 in a direction crossing the longitudinal direction of the sheet 11. The first strip-shaped electrodes 21 and 22 and the second strip-shaped electrode 2
3 and 24 are arranged so as to overlap with each other, and pattern electrodes in which bending electrodes 30 serving as coils having both ends connected to the first strip electrodes 21 and 22 are arranged are provided at regular intervals,
A laminated body is prepared by coating the second insulating sheet 12 thereon.

Next, the laminated body 10 is alternately bent at the portion of the conductor 33 (arrow X) in the opposite direction in a folding screen shape to be processed into a rod shape. The device shown in FIG. 4 is used.

As shown in FIG. 3, in order to bend the laminated body 10 continuously supplied from the supply reel 3 at the position of the conductor 33, which is the bending portion of the bending electrode 30, in the folding device 4, The tips of the upper teeth 41 and the lower teeth 42 are aligned with the positions of the conductors 33 and pulled out.

The other steps are the same as in the first embodiment, and a 4-terminal π-type LC filter circuit element having the terminal electrodes 27, 36 and 37 on the front and back can be obtained.

(Third Embodiment) An embodiment for forming a .pi. Type LC filter as shown in the equivalent circuit of FIG. 1C will be described.

Therefore, as shown in the front view (a) and the rear view (b) of FIG. 7, capacitors are provided on both sides of the wide insulating sheet 11 in a direction intersecting with the longitudinal direction of the sheet 11. The two bent electrodes are arranged so that the strip electrodes 21 and 23 are overlapped with each other, and further connected to the strip electrodes 21 and 23 and sandwiching the strip electrodes 21 and 23 to form a coil.
30 and 35 are arranged, and two bending electrodes 30 formed on the front and back sides,
In order to connect the end portions 29 of 35, pattern electrodes having through holes 39 provided in the insulating sheet 11 are provided at regular intervals, and the electrode is covered with the second insulating sheet 12 thereon.
Prepare 10.

Next, the laminated body 10 is alternately bent in the opposite direction at the portion of the conductor 33 in the shape of a folding screen to be processed into a rod shape, which is shown in FIGS. 3 and 4 like the first embodiment. Use the device.

As shown in FIG. 3, in order to bend the laminated body 10 continuously supplied from the supply reel 3 in a folding screen shape at the position of the conductor 33 (arrow X) which is the bending portion of the bending electrodes 30 and 35. , The tips of the upper teeth 41 and the lower teeth 42 of the bending device 4 are aligned with the position of the conductor 23 and pulled out.

The other steps are the same as in the first embodiment, and it is possible to obtain a three-terminal π-type LC filter circuit element having the terminal electrodes 29, 36 and 37 on the front and back.

(Fourth Embodiment) An embodiment for forming the transformer shown in the equivalent circuit of FIG. 1D will be described.

Therefore, as shown in the front view (a) and the rear view (b) of FIG. 8, the bending electrodes 30 and 35 to be coils are overlapped with each other on both sides of the sheet 11 of the wide insulator. Providing arranged pattern electrodes at regular intervals,
A laminated body is prepared by coating the second insulating sheet 12 thereon.

In the bending electrodes 30 and 35 that serve as the coils, the first conductors 31 and 32 arranged in a zigzag pattern in the direction intersecting with the longitudinal direction of the sheet 11 are alternately connected by the second conductor 33 in the longitudinal direction. To form a concavo-convex pattern, and further connect the terminal electrodes 36, 37 to the ends.
And 43, 44 are provided, and the conductor becomes the bending part.
33 positions (arrow X) are arranged so as to be aligned along the longitudinal direction of the sheet 11.

Next, the laminated body is alternately bent in the opposite direction in a folding screen shape at the portion of the conductor 33 so as to be processed into a rod shape. As in the first embodiment, the apparatus shown in FIGS. 3 and 4 is used. To use.

As shown in FIG. 3, the folding device is used to bend the laminated body 10 continuously supplied from the supply reel 3 in a folding screen shape at the position of the conductor 33 serving as the bending portion of the bending electrodes 30 and 35. The tips of the upper teeth 41 and the lower teeth 42 of 4 are aligned with the positions of the conductors 33 and pulled out.

The other steps are the same as those in the first embodiment, and a four-terminal transformer having the terminal electrodes 36, 37 and 43, 44 on the front and back can be obtained.

(Fifth Embodiment) An embodiment for forming a crystal oscillation circuit as shown in the circuit diagram of FIG. 9 will be described. A crystal oscillation circuit can be configured by integrally forming a resistor, a capacitor, and a coil, and connecting a crystal oscillator 61, a transistor 62, and power supplies 63 and 64 as external parts.

As shown in the assembly view of FIG. 10, the bending electrode 30 to be a coil is provided on the back surface of the wide insulating sheet 11.
Strip-shaped electrodes 21, 22 and 23, 24 to be the first and second capacitors are arranged so as to overlap each other on both sides of the insulating sheet 11, and a resistor 51 is formed on the surface of the insulating sheet 11 Patterned electrodes formed by forming terminal electrodes s to w are provided at regular intervals, and a laminated body covered with a second insulating sheet so as to cover the surface of the bent electrode 30 is prepared.

The insulating sheet 11 has through-holes 39 at the portions where the front and back electrodes must be connected.
Are provided, and wirings 52 to 59 are provided between the respective elements. Reference numerals 52 to 59 attached to these wirings correspond to the reference numerals in the circuit diagram of FIG.

The bending electrode 30 serving as a coil is a first conductor arranged in a zigzag pattern in a direction intersecting with the longitudinal direction of the sheet 11.
31 and 32 are alternately connected by a second conductor 33 in the longitudinal direction and are continuously formed in a concavo-convex shape, and each position of the conductor 33 serving as a bent portion is arranged so as to be aligned along the longitudinal direction of the sheet 11. ..

Next, the laminated body is alternately bent at the portion of the conductor 33 in the opposite direction in a folding screen shape to be processed into a rod shape. The apparatus shown in FIGS. 3 and 4 is the same as the first embodiment. To use.

As shown in FIG. 3, in order to bend the laminated body 10 continuously supplied from the supply reel 3 at the position of the conductor 33, which is the bending portion of the bending electrode 30, in the folding device 4, The tips of the upper teeth 41 and the lower teeth 42 are aligned with the positions of the conductors 33 and pulled out.

Then, ear portions 70 are formed to connect the terminal electrodes s to w formed on both surfaces of the insulating sheet 11 through the through holes 39 and 39a.

A terminal molding device 7 is provided between the ear removing device 5 and the molding device 8. In this terminal molding device 7, the ears 70 are bent to the opposite side and the necessary wiring is provided through the through holes 39a. Give.

The other steps are the same as in the first embodiment, and a composite circuit having terminal electrodes s to w as shown in the perspective view of FIG. 11 can be obtained.

A crystal oscillator is attached to each of the terminal electrodes s to w.
By connecting 61 and the transistor 62 and further connecting the power supplies 63 and 64, it is possible to operate as a crystal oscillator.

(Other Embodiments) In each of the embodiments described above, it is assumed that each one of the surfaces folded in a folding screen is relatively small. However, if the area of one surface is made large. It is possible to obtain a laminated body in which one or a plurality of types of passive circuit elements are formed in the layers of a multilayer printed wiring board, and by using this laminated body, the number of parts to be attached can be reduced. ..

[0045]

As is apparent from the description based on the above embodiments, according to the composite electronic component of the present invention and the manufacturing method thereof, a circuit in which a plurality of different kinds of elements such as a coil, a capacitor and a resistor are combined into a composite circuit. Can be obtained as a single part, and can be continuously mass-produced.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing equivalent circuits of first to fourth embodiments of a composite electronic component obtained by the manufacturing method of the present invention,

FIG. 2 is a surface view (a) and a cross-sectional view (b) showing a laminate used when forming the composite electronic component of the first embodiment.

FIG. 3 is a schematic view showing an apparatus for manufacturing a composite electronic component of the present invention,

FIG. 4 is a plan view (a) and a cross-sectional view (b, c) of a bending device which is a part of the device shown in FIG.

FIG. 5 is a perspective view of a composite electronic component obtained by the manufacturing method of the present invention,

FIG. 6 is a front view (a) and a back view (b) showing a laminate used to form the composite electronic component of the second embodiment.

FIG. 7 is a front view (a) and a back view (b) showing a laminated body used when forming the composite electronic component of the third embodiment.

FIG. 8 is a front view (a) and a back view (b) showing a laminated body used when forming the composite electronic component of the fourth embodiment;

FIG. 9 is a circuit diagram showing an equivalent circuit of a fifth embodiment of a composite electronic component obtained by the manufacturing method of the present invention,

FIG. 10 is an assembly diagram showing a laminate used when forming the composite electronic component shown in FIG.

FIG. 11 is a perspective view of a composite electronic component of a fifth embodiment.

[Explanation of symbols]

 3 Supply reel 4 Bending device 5 Ear removing device 7 Terminal molding device 8 Molding device 9 Cutting device 10 Laminated body 11 Insulator sheet 21, 22, 23, 24 Strip electrode for capacitor 30 Bending electrode for coil 39, 39a Through hole

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H01G 4/26 8019-5E

Claims (5)

[Claims] 1. A composite electronic component, wherein a plurality of passive circuit elements of different types are formed as pattern electrodes on the surface of an insulating sheet bent in a folding screen shape. 2. The composite electronic component according to claim 1, wherein two or more of a coil, a capacitor and a resistor are provided as the passive circuit element. 3. A laminate in which pattern electrodes, which form a composite circuit when bent like a folding screen, are arranged at regular intervals on a sheet of a wide insulator in a direction intersecting the longitudinal direction of the sheet. A first step of obtaining a body, a second step of bending the laminated body into a folding screen shape in the longitudinal direction, a third step of pressing and forming into a folded folding screen shape, and an element between the pattern electrodes. Fourth to cut into units
The process of manufacturing an electronic component characterized by the following steps. 4. The method of manufacturing an electronic component according to claim 3, wherein a bent electrode that forms a coil when bent like a folding screen is formed as the pattern electrode. 5. The method of manufacturing an electronic component according to claim 3, wherein an electrode which becomes a capacitor when bent like a folding screen is formed as the pattern electrode.