JPS63283010A - Composite type circuit component part - Google Patents

Abstract

PURPOSE:To facilitate the connection of lead wires and to improve mechanical strength by providing a lead coupler for fixing leads by holding the connecting ends of the leads to an intermediate coupling piece. CONSTITUTION:A conductive plate 21 has inductor mounting parts 31L, 31R, 32L, 32R at both wing parts. A second intermediate coupling piece 23 is oppositely disposed at the center of the plate 21, and interposed between a pair of first intermediate coupling pieces 22 and 24. Inductors 25, 26 are placed on the parts 31L, 31R, 32L, 32R. A chip capacitor 27 is placed across the center of the plate 21 and one end of a second intermediate coupling piece 23. In this case, a lead coupler 33 is provided for securing leads 28, 29, 30 by holding the connecting ends of the leads 28, 29, 30 to the pieces 22, 23, 24. Thus, the lead wires 28, 29, 30 can be easily connected to improve mechanical strength.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a composite circuit component having a capacitor, an inductor, etc. used in televisions, VTRs, etc.

(Prior Art) Conventional composite circuit components including capacitors, inductors, etc. are shown in FIGS. 4(a) and 4(b).

The composite circuit component 1 shown in FIGS. 12(a) and (b) has inductors 5, 5 each formed by winding a coil around a drum-shaped core at both ends of a conductive plate 6 having a roughly downward REJ shape.
One end and one end of a chip capacitor 8 are placed and connected in the center, respectively, and on the other hand, the other ends of the inductors 5, 5 and the other end of the chip capacitor 8 are each connected to a coupling piece 7m,
It is placed on one end of 7R17M to make a conductive connection, and the lead wires 3a, 3 are placed on the other ends of the coupling pieces 7L and 7R17M.
b, 3C is mounted and electrically connected with solder. In the figure, reference numeral 15 denotes a molding material that includes and covers the connecting ends of each lead wire.

In the composite circuit component as described above, each lead wire is inserted into another circuit board by pressing the upper part of the conductive plate 6 in the direction of the arrow claw by a button 2 provided on an automatic insertion machine (not shown). Becomes connected. In addition, this Butsusha 2
It is composed of a metal cylindrical case 2a and a rubber material 2b, for example, filled inside the case.

(Problem to be Solved by the Invention) However, in the composite circuit component having the above configuration, the lead wires 3a to 3C connected to the coupling pieces 71.7M and 7R are connected to solder wires 9a to ff19c, respectively. Moreover, since the connection and fixation are mainly performed through the end faces of each lead wire, the mechanical strength of the connection portion is low. Therefore, for example, when placing the circuit board on another circuit board (not shown), the force applied when placing the board will be concentrated on the connecting part between the intermediate coupling piece and the lead wire connected to it. This may result in damage.

In addition, when each lead wire and the other circuit board are electrically connected to each other by soldering after being placed on another circuit board, the solder 9a to connect and fix each lead wire and the intermediate coupling piece by the heat of the solder. Not only will 9C dissolve and cause poor conductivity, but
In some cases, there was a problem that it could not even be shipped as a product.

Therefore, an object of the present invention is to provide a composite circuit component that solves these problems.

[Structure of the Invention] (Means for Solving the Obstacle) The structure of the present invention for achieving the above object includes a conductive plate having inductor mounting portions formed on both wing portions, and each of the inductor mounting portions. a pair of first intermediate coupling pieces each having an inductor mounting portion formed at one end opposite to the conductive plate; a second intermediate coupling piece disposed at a position, a lead wire coupling portion is provided in each of the first intermediate coupling piece and the second intermediate coupling piece, and a lead wire coupled to each of the lead wire coupling portions is provided. and an inductor placed on each of the opposing inductor placement parts, and a chip capacitor placed across the center of the conductive plate and one end of the second intermediate coupling piece.

(Function) The function of the present invention having the above-mentioned configuration is to provide the intermediate joint/piece with a lead wire joint part that clamps and fixes the connecting end of the lead wire, thereby facilitating the connection of the lead wires, and making it possible to connect each lead wire easily. When electrically connecting the lead wire and another circuit board with solder, even if the solder melts due to the heat, the intermediate joint piece and the lead wire do not separate, and the mechanical strength is improved. ing.

(Example) An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of the composite circuit component.

In the figure, the composite circuit component 20 has both wing parts 21L, 2
A conductive plate 21 in which inductor mounting portions 31L and 31R are formed on 1R, respectively, and the inductor mounting portions 31L and 31
A pair of first intermediate coupling pieces 22, 24 have inductor mounting parts 32L and 32R formed at the opposite end thereof at a predetermined distance apart, and a lead wire coupling part 33 formed at the other end.
and a second intermediate coupling piece 2 whose one end is disposed opposite to the center of the conductive plate 21 and whose other end is formed with a lead wire coupling part 33.
3, and upright pieces 34 to 36 are formed at adjacent opposing ends of the first intermediate coupling piece 22, 24 and the second intermediate coupling piece 23, respectively, and the opposing inductor mounting portion 31L.

Inductors 25 and 26 each having a winding wound around a drum-shaped core are placed between 32L, 31R, and 31L, and the inductors 25 and 26 are placed between the center of the conductive plate 21 and one end of the second intermediate coupling piece 23. chip capacitor 27, and the first chip capacitor 27.
The second intermediate connecting piece has lead wires 28 to 6-30 connected to the tow wire connecting portion 33. In the figure, numeral 55 denotes a molding material that covers the entirety, including the connecting end portions of the lead wires.

FIG. 2 (a) is an explanatory diagram showing the composite circuit component 20 shown in FIG. 1 with the chip capacitor 27, inductor 25, 26, molding material 55, and lead wires 28 to 30 omitted; FIG. ,(C).

(d) is a BB' end view, a c-c' end view, and an EE' sectional view, respectively.

In the same figure (a), the conductive plate 210 both wing parts 21L, 21
Inductor mounting portions 31L and 31R each having a substantially downward [E] shape are formed on the same side end 37 side.

The inductor mounting portions 31L and 31R are provided with the drum-shaped core (inductor>25.26, each having a flange portion 25a).
, 26a will be placed on this flange 25a,
26a itself consists of three protruding pieces 38 to 40 constituting the inductor mounting section, a protruding piece 39 located at the center being bent in a direction perpendicular to the plane of the paper, and supported by the remaining protruding pieces 3B and 40. become. In addition, the protruding piece 39 bent at a substantially right angle is brought into contact with the end surface of the drum-shaped core to be placed, and is later electrically connected by soldering or the like. intermediate joint piece 22.24
The inductor mounting portion formed in the figure also has a similar structure.

The conductive plate 21 has three notches 41m and 41 in the center thereof.
M, 41R are formed. As shown in the figure, the conductive plate 21 is formed symmetrically on the paper with a notch 41M as the center, and a rectangular notch is provided at a position equidistant from the circular notch 41M on the left and right sides of the paper. Portions 41L and 41R are formed, respectively. The chip capacitor 27 is placed between the notches 41L and 41R.

Also, the side edge 3 of the central part where these three notches are formed
On the end opposite to 7, an upright piece 42 is formed to protrude and is bent at a substantially right angle toward the front side of the paper.

As shown in FIG. 4(d), this upright piece 42 protects the end of the chip capacitor 27 that is placed close to it, and also aims to improve the mechanical strength of the conductive plate itself.

By the way, both wing portions 21L of the conductive plate 21.

Inductor mounting portion 31L formed in 21R.

31R, the first intermediate coupling piece 22.31R has inductor mounting portions 32L, 32R facing each other, each having a similar configuration.
24 are arranged.

A clamping piece 43 for clamping a round lead wire 28.degree. 30 having a flat connection end is formed approximately at the center of each of the first intermediate coupling pieces 22,24. This clamping piece 43 is the connecting piece member 22a.

The connecting end of the lead wire inserted between the clamping piece 43 and the clamping piece 43 is clamped by the elastic force of the clamping piece 430. The clamping piece and the connecting piece member constitute a lead wire connecting part.

Similarly, a second intermediate coupling piece 23 is arranged at a distance from the center of the conductive plate 21.

This second intermediate coupling piece 23 has a chip capacitor mounting part 44 formed at one end facing the conductive plate 21, and a lead wire coupling part 33 formed at the other end.

The chip capacitor mounting portion 44 has upright pieces 44L and 44R formed to substantially match the width of the chip capacitor 27 (in the direction perpendicular to the long axis), and has a rectangular notch in the center. 45 is formed. This notch 45 is connected to the chip capacitor 2 as shown in FIG.
7 is placed near one end of its long axis (lower end in the figure).

As briefly described, upright pieces 34.35L and 35R136 are provided at opposing ends of the first intermediate coupling piece 22.24 and the second intermediate coupling piece 23 described above, respectively.

These upright pieces 34.35L and 35R136 are formed near the connection end of each intermediate coupling piece with the lead wire, and the illustrated embodiment is on the front side of the paper, that is, the chip capacitor 2
7 is bent toward the surface on which it is placed (see figure (b)).

The functions and effects of the composite circuit component having the above configuration will be explained with reference to FIGS. 5(a> and 5(b)).

As shown in FIG. 1(a), the first. Second intermediate connecting piece 22
．． In 24.23, intermediate connecting piece members 22a, 24a, 2
Round lead wires 28, 29.30 inserted between 3a
connection ends 28a, 29a.

Since the clamping pieces 43 that elastically clamp the wires 30a are respectively formed, the connecting ends 28a and 29a of the lead wires.

30a may simply be processed into a flat shape. In addition, as the lead wire joint part 33, an intermediate joint piece made of a plate shape is used as shown in the figure (
b) As shown in the figure, it is only necessary to perform press working into a substantially U-shaped downward direction in the figure, which not only improves the working accuracy but also simplifies the working process. Further, when soldering a lead wire whose connection end is flattened, the contact area can be increased, so that the mechanical strength of the connection portion can be increased. Furthermore, even if there are variations in the amount of solder applied, reliable soldering is possible due to capillary action. Incidentally, FIG. 5(b) shows a state in which the lead wire 29 is held between the lead wire coupling portion 33.

By the way, in the completed composite circuit component, each lead wire is inserted into a lead wire insertion hole (not shown) drilled on another circuit board, and a conductive connection is made with solder. Even in the case where the solder applied to the lead wire connection end and the lead wire joint part melts due to the heat of the solder applied, in the present invention, the lead wire connection end is secured by the intermediate joint piece member and the clamping piece. Since it is clamped, the lead wire connection end h: does not separate from the X intermediate coupling piece. Therefore, problems such as poor conduction caused by this can be prevented.

Another possible method is to form a fork-shaped clamping piece at the tip of the lead wire, but this is not practical as it would be difficult to process the tip of the lead wire, but according to the present invention, it is possible to simply make the plate-shaped body stand up. It has the advantage of being easy to form.

Next, we will discuss the third method for manufacturing the above-mentioned composite circuit components.
This will be explained with reference to Figures (a) to (d).

■ The conductive plate 21 shown in FIG. 2 above. First intermediate joint piece 2
2.24 and the second intermediate joint piece 23 are made of, for example, an aluminum alloy as shown in FIG. 3(a).

Metal belt (also called lead frame) made of copper etc. 4
9 is formed at regular intervals by press working or the like. Specifically, sprocket holes 48 are formed in the metal belt at regular intervals, and the metal belt is intermittently conveyed in the direction of the arrow through these sprocket holes 48.

During transportation, as shown by arrow 46, the conductive plate.

Pressing is applied to the shape including the portion that will become the first intermediate joining piece, the second intermediate joining piece, and the portion that will become the standing piece. Then, at the next predetermined position, as shown by the arrow 47, the upright piece 42.44L.

44R, 39, 34, 35L, 35R, 36, the holding piece 43, etc. are formed by bending.

■ Place the inductor on the inductor placement portion formed as described above. Then apply cream solder,
Solder.

■ After applying cream solder to the position where the chip capacitor will be soldered, connect the second intermediate coupling piece 23 and the conductive plate 2.
A chip capacitor 27 is mounted between the two. At this time, the upright piece 42 formed on the conductive plate 21 functions as a positioning member for the chip capacitor 27.

■ Once the inductors 25, 26 and the chip capacitor 27 are mounted and connected as described above, the lead frame 49, the conductive plate, and the first. Cut the part that will become the second intermediate joining piece.

(2) Insert round lead wires 28 to 30 with one end flattened as shown in FIG.

At this time, since the connecting ends 28a to 30a of each lead wire are flat, the connection becomes easier. Further, at this time, each lead wire is temporarily fixed by the lead wire coupling portion, so that the manufacturing process can be designed easily.

Further, as shown in FIG. 2B, the plurality of round lead wires are fixed to a transfer belt 20 made of paper, for example, with a predetermined interval M maintained therebetween, and are intermittently transferred through a sprocket hole 51. Incidentally, the predetermined interval M here is an interval corresponding to each of the lead wire coupling portions 33.

■ Composite circuit components assembled as described above (
(shown in FIG. 2C) is coated with, for example, a synthetic resin.

Through the above steps, the composite circuit component is completed.

It should be noted that the present invention is not limited to the illustrated embodiments described above, and various modifications can be made within the scope of the invention.

[Effects of the Invention] As detailed above, according to the present invention, it is possible to easily connect lead wires, and the heat generated when each lead wire and another circuit board are electrically connected by solder melts the solder. It is possible to provide a composite type circuit component in which the intermediate coupling piece and the Riet wire do not separate even when the wires are removed, and the mechanical strength is improved.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a composite circuit component according to an embodiment of the present invention, and FIG. 2(a) is a diagram of the composite circuit shown in FIG. 1, with the inductor, chip capacitor, and lead wire omitted from one component. Explanatory drawings, FIGS. 2(b) and 2(C) are B-8' end view and C-C' end view shown in FIG. 2(a), respectively, and FIG. 2(d) is F shown in FIG. 2(a). -['Cross-sectional view, Figure 3 (
a) is an explanatory diagram of the lead frame for composite circuit components shown in Fig. 1, (b) to (d) are explanatory diagrams of the manufacturing process, and
Figure (a). (b) is an explanatory diagram of a conventional composite circuit component, and Fig. 5 (a>,
(b) is an explanatory diagram when connecting the lead wire to the lead wire joint part, and (a) is a schematic front view, and (a) is a schematic front view, and (
b) is its EE' cross-sectional view. 21... Conductive plate, 22. 24... First intermediate coupling piece, 22a, 23a, 24a... Coupling piece member, 23...
・Second intermediate coupling piece, 25.26... Inductor, 27... Chip capacitor, 28.29.30... Lead wire, 311.31R, 32L, 321R... Inductor mounting part, 33 . . . Lead wire joint portion, 43 . . . Clamping piece. 3

Claims (3)

[Claims] (1) a conductive plate having inductor mounting portions formed on both wing portions, and a pair of first intermediate coupling pieces having an inductor mounting portion formed at one end facing each of the inductor placement portions;
a second intermediate connecting piece having one end facing the center of the conductive plate and being sandwiched between the pair of first intermediate connecting pieces; Each of the second intermediate coupling pieces is provided with a lead wire coupling portion, and the lead wires coupled to the lead wire coupling portions, the inductors respectively placed on the opposing inductor placement portions, and the central portion of the conductive plate. 1. A composite circuit component comprising a chip capacitor placed across one end of a second intermediate coupling piece. (2) The composite circuit component according to claim 1, wherein the lead wire coupling portion elastically clamps the lead wire. (3) The composite circuit component according to claim 1, wherein the lead wire is a round lead wire with a flattened end connected to the lead wire coupling portion.