KR910006954B1 - Picture information processor manufacture of composite parts - Google Patents

Abstract

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Description

Composite parts of electronic circuit and manufacturing method

1 is a plan view of a lead frame for constructing various composite parts.

FIG. 2 is a plan view for explaining how the first and second terminal members in FIG. 1 are curved. FIG.

3A is a side view of the first terminal member in a curved state.

3B is a side view of the second terminal member in a curved state.

4 is a plan view illustrating how inductors and capacitors are mounted and connected to the lead frame.

5 is a plan view showing a position to cut the exterior forming portion and the projecting segment in FIG.

6 is a plan view showing a region constituting a composite part.

7 is a view for explaining an example of the manufacturing principle according to the present invention.

8 to 10 are equivalent circuit diagrams of a composite component having the individual circuit configuration of FIG.

11 and 12 illustrate another example of the manufacturing principle according to the present invention.

13 is a perspective view of a composite component manufactured according to the first embodiment of the present invention.

14 is an equivalent circuit diagram of the composite component shown in FIG.

15 is a plan view of the projecting segment in a cut position in accordance with a second embodiment of the present invention.

16 is a perspective view of a composite component manufactured according to the second embodiment of the present invention.

17 is an equivalent circuit diagram of the composite part shown in FIG.

18 is a plan view showing a position for cutting a protruding segment in accordance with a third embodiment of the present invention.

19 is a perspective view of a composite component manufactured according to the third embodiment of the present invention.

20 is an equivalent circuit diagram of the composite component shown in FIG. 19. FIG.

21 is an equivalent circuit diagram of a circuit component showing a position to cut a protruding segment in the fourth embodiment of the present invention.

FIG. 22 is an equivalent circuit diagram of the circuit component shown in FIG. 21. FIG.

23 and 24 are a perspective view and an equivalent circuit diagram of a circuit component in a fifth embodiment of the present invention.

25 and 26 are a perspective view and an equivalent circuit diagram of a circuit component according to a sixth embodiment of the present invention.

27 to 30 illustrate the manufacturing steps of circuit components in the fifth and sixth embodiments.

32A to 32C are sectional views showing the structure of the inductance control member used in the fifth and sixth embodiments.

32 and 33 are cross-sectional views and characteristic curves showing the principle of operation of the inductance control member.

34 is a sectional view showing yet another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

2: exterior 5: lead frame

7; First terminal member 11: Second terminal member

8a, 8b, 12a, 12b: protruding segments

9a, 9b, 13a, 13b: electrode connection segment

10a ₁ , 10a ₂ , 10b ₁ , 10b ₂ : Support segment 15: Drum core

16: coil 17: inductor

20: capacitor 41: transformer

The present invention relates to a composite component for use in an electronic circuit such as a VTR, a wireless communication device, a radio, and a manufacturing method thereof.

Conventionally, each circuit component such as an inductor, a transformer, a capacitor, a resistor, or the like for installation in a printed circuit board for an electronic circuit is manufactured in the form of a single element or a composite component, and an inductor, a capacitor, and two circuit elements protrude therefrom. The lead wires connected to each other are accommodated in a molded exterior such as a synthetic resin.

However, the work for installing a circuit component or a composite component in a conventional printed wiring board is very complicated in connecting the lead wires, and thus a technically satisfactory result cannot be obtained for the printed wiring board.

Since the above-mentioned conventional composite part has a relatively large dimension, inconvenience of circuit operation cannot be avoided.

In a structure in which a plurality of circuit components are integrally included in the enclosure, the terminals for connecting to the external circuit are provided for each circuit component separately, so that the interconnection between the circuit components in the enclosure is different from that of other lead wires or the same. It is necessary to shorten by using similar.

This creates a problem that requires more time to install circuit components on a printed wiring board.

In order to solve the problem, it is necessary to be made in two forms at the manufacturing stage. That is, it is in the form of being connected or not connected to the internal circuit components to be suitable for individual use, which results in a disadvantage due to the complexity of the manufacturing process.

Furthermore, in a filter circuit composed of a plurality of coupling circuit components, such as the LC filter circuit of the inductor L and the capacitor C, which are housed together and coupled together in an enclosure, the control element must be applied to any one of the circuit components, for example The inductor can be set to change its inductance.

However, even in such composite parts, the problem described above still arises, and two types of devices having different connection relationships with each other are required to be manufactured according to the above-mentioned individual uses.

SUMMARY OF THE INVENTION An object of the present invention is to provide a composite component and a method of manufacturing the same. A plurality of circuit components are integrated into a small dimension as a whole and are made of a lead-less type without any lead wire, thereby greatly improving the surface installation technology and The connection between the parts can be changed as desired at the two stages of manufacture and use.

It is still another object of the present invention to realize a method of manufacturing a composite part having a function of adjusting the electrical characteristics thereof while realizing that the connection mode between internal circuit components can be changed as desired at two stages of manufacture and use, and To provide the composite parts.

In order to achieve this object, broadly speaking, the composite part of the present invention is shaped by cutting at a predetermined position a plurality of pairs of projecting segments formed in the punched areas of the lead frame opposite each other and bonded to each of its bases. A plurality of pairs of terminal members, a plurality of circuit parts disposed between the pair of projecting segments, and an exterior molded in an area excluding the circuit part and the base of the projecting segment; A front end of the projecting segment is bent along the wall surface of the sheath, which can extend from the sheath and have a different shape depending on its cut position.

In another composite of the present invention, a plurality of circuits are formed in a shape in which a plurality of pairs of terminal members are formed in punched areas opposite to the lead frame, and cut out at predetermined positions of the plurality of pairs of protruding segments joined to respective bases. The component is made up of at least a coil and is disposed in the terminal member, respectively, and the sheath is molded in a region except the base of the circuit and the protruding segment with a recess at a predetermined position corresponding to the coil, and an inductance control member Is arranged in a plurality of magnetic materials and the recess, and is formed in a different shape depending on the leading edge and the cutout point of the projecting segment extending outwardly from the sheath and bent along the wall surface of the sheath; The inductance of can be set to a desirable value suitable for the rotation angle of the inductance control member. .

Moreover, in order to achieve the above-mentioned object, embodiments are clearly described according to the object of the present invention, so that the method of manufacturing the composite part of the present invention includes a plurality of pairs of terminals joined at each base or formed in punched areas of opposite lead frames. Each of the members is disposed in a plurality of circuit components; The required conductor is executed between the circuit element and the terminal member; Molded of an outer synthetic resin in an area except for the base of the circuit component and the terminal member; Cutting at the front end of a desired position of the terminal member extending outwardly from the sheath or bending the front end along a wall surface of the exterior of the sheath; Certain preferred various methods of connection with composite components selectively fabricate modified conductors at the cutout positions of the circuit components and the terminal member.

In another method of manufacturing the composite part of the present invention, a coil formed of the circuit parts is connected to the terminal member, so that a plurality of pairs of terminal members are joined to respective bases and formed in punching regions opposite to each other. Disposed in a circuit component of; The required conductor is executed between the circuit component and the terminal member; An exterior made of synthetic resin is molded in an area except for the base of the circuit component and the terminal member; A recess is formed in the sheath at a predetermined position corresponding to the coil; A magnetic material is disposed in said recess of the partially configured inductance control material; Cutting the front end of the terminal member extending outwardly from the sheath into a desired position, or curved at the end along the outer wall surface of the sheath; With any preferred one of the various connection methods, a composite component is optionally fabricated to change the leads in the cutout position of the circuit component and the terminal member.

A first embodiment of a method of manufacturing a composite part of the present invention is described below with reference to FIGS.

Initially, the improvement of the lead frame 5 shown in FIG. 1 is produced by a press operation from a conductive plate member such as a strip.

In the lead frame 5 the first and second terminal members 7, 11 are located substantially parallel to the center of the punched area 6.

The first terminal member 7 comprises first protruding segments 8a, 8b and two protruding segments 8a, extending from the upper and lower sides of the lead frame of FIG. 1 towards the center of the punched area 6. It consists of electrode connection segments 9a and 9b and support segments 10a ₁ , 10a ₂ , 10b ₁ , 10b ₂ integrally formed at each of the centers of the tip of 8b). In this arrangement, the electrode connection segments 9a and 9b, the support segments 10a ₁ and 10b ₁ and the support segments 10a ₂ and 10b ₂ are respectively arranged opposite to each other.

The second terminal member 11 is a second protrusion segment 12a, 12b disposed in parallel with the above-described first protrusion segment 8a, 8b and a second portion formed at the distal end of the protrusion segment 12a, 12b, respectively. Of the electrode connecting segments 13a and 13b, and the second electrode connecting segments 13a and 13b protrude in the longitudinal direction of the lead frame 5 shown in FIG. The first and second protruding segments 8a and 12a are joined to each other at either base 14a of the lead frame 5, and the protruding segments 8b and 12b are connected to another base 14b of the lead frame 5. ) Are combined.

As a next step, the first and second terminal members 7 and 11 in the shape of the lead frame 5 mentioned above are shown in Figs. 2, 3 (a) and 3 (b). Bent

Firstly, the first terminal member 7 of the electrode segment 8a is vertically curved upward along the line A ₁ shown in FIG. ₁ , and then the electrode connection segment 9a and the support segment 10a ₁ ,. 10a ₂ ) is horizontally curved along line B ₁ .

Similarly, the projecting segment 8b is bent vertically upward along the line A ₂ shown in FIG. 1, and then the electrode connecting segment 9b and the supporting segments 10a ₁ , 10a ₂ have a line B ₂ . It is curved horizontally.

The two horizontal electrode connection segments 9a and 9b are curved to face each other.

Thus, the first terminal member formed by the above procedure can support the circuit component in the center of the punched area 6 as shown in FIG. 3 (a).

On the other hand, the second protruding segments 10a and 12b are vertically curved upward along the lines C ₁ and C ₂ shown in FIG. ₁ and then horizontally curved along the lines D ₁ and D ₂ . .

Then, the three side surfaces of the electrode connection segments 13a and 13b in the horizontal position are curved vertically upward.

The second terminal member 11 formed by the above procedure can support the circuit component in the center of the punched area 6 shown in FIG. 3 (b).

In the next step, the inductor 17 is mounted opposite the first terminal member 7 shown in FIG.

The inductor 17 includes a drum core 15 made of a magnetic material and the coil 16 is wound around the drum core 15. The two flanges 15a and 15b of the drum core 15 have a recessed outer cross section and the connecting electrodes 18a and 18b are disposed therein.

One flange 15a is supported by the support segments 10b ₁ , 10b ₂ and the other flange 15b is supported by the support segments 10b ₁ , 10b ₂ so that the inductor 17 has a first terminal member ( 7) is located by.

The electrode connection segments 9a and 9b are in contact with the electrodes 18a and 18b, respectively, and the two ends of the coil 16 are soldered by connecting to individual contacts, whereby the coil 16 connects the two electrodes. It is electrically connected to the segments 9a, 9b.

On the other hand, in the second terminal member 11, as shown in FIG. 4, a capacitor 20 having electrodes 19a and 19b at its two ends is provided, and the electrodes 19a and 19b are soldered or the like. It is electrically connected to the connecting segments 13a, 13b.

Next, the sheath 2 is molded with synthetic resin as shown in FIG. 5 to cover the inductor 17 and the capacitor 20 supported by the first and second terminal members 7, 11.

After this molding step is completed, the projecting segments 8a, 12a and 8b, 12b are cut along the lines X and Y shown in FIG.

In the composite component 1 produced by the above procedure, the projecting segments 8a, 12a, 8b, 12b are partially extended to the outside of the sheath 2 as shown in FIG. Thus, the outer portions of the protruding segments 8a, 12a and 8b, 12b are curved along the wall surface of the sheath 2 so that the composite part 1 is formed to have an outer shape of FIG. 13 and a circuit configuration of FIG. .

The composite component 1 having such a configuration can be used as a composite element having an integral structure with both functions of the coil 17 and the capacitor 20 individually.

Since the composite component 1 is free of lead wires, it is technically suitable for installation on the surface of a printed wiring board.

In particular, the size of the composite part is 5mm in width, 4mm in height and 3mm in height so that the composite part can be fixed on the printed wiring board according to the purpose of use after tapping the outer surface of the exterior 2.

In this step, the inductor 17 and the capacitor 20 may be mounted at the same time, so that the circuit assembly may increase the installation efficiency.

Although the terminal member of the above embodiment has been cut along the lines X and Y in FIG. 5 to make the composite part in FIGS. 13 and 14, the cut can be arbitrarily selected to obtain a composite part exhibiting different functions.

The principle of manufacturing the composite part of the present invention is now described below with reference to FIGS.

In the circuit in which the inductor L and the capacitor C are interconnected, the circuit configuration is shown in FIG. 8 for the path between the terminals ①-① and the path between the terminals ②-② as shown in FIG. Arrange them one by one.

On the other hand, in the circuit configuration of the path between terminals 3 and 3 shown in FIG. 7, the inductor L and the capacitor C are connected in series as shown in FIG.

As shown in FIG. 10, the inductor L and the capacitor C are connected in series as shown in FIG.

As a result, other functions represented by composite components can be obtained by connecting two circuit components, an inductor L and a capacitor C, interchangeably.

As shown in Fig. 11, the advantages are not limited to the inductor L and the capacitor C composite parts, but similar effects are excellent in the composite circuit of the inductor L and the resistor R with the similar effects cut out at the terminals ①, ②, ③, and ④. It means that a similar effect is achieved.

Furthermore, as shown in FIG. 12, the effect is achieved by appropriately selecting the positions cut out at the ①, ②, ③, and ④ terminals even in the coupling circuit of the resistor R and the capacitor C. FIG.

A second embodiment of the present invention is described below.

This embodiment is essentially similar to the first embodiment except for the position where the protruding segments 8a, 12a, 8b, 12b are cut out to change the forming step. After forming the sheath 2, as shown in FIG. 15, the protruding segments 8a and 12a are cut along the line Z while the protruding segments 8b and 12b are cut along the line W. As shown in FIG. The front ends of the projecting segments 8a, 12a extending outwardly from the sheath 2 are thus joined to the base 14b with each other. Through such a cutting step, the coil 17 and the capacitor 20 may be connected in parallel to each other to manufacture a composite component 30 having an external shape of FIG. 16 and a circuit configuration of FIG. 17.

The method of manufacturing such a composite part 30 can also achieve the same function as in the first embodiment.

A third embodiment of the present invention is described below. The method of this embodiment is also fundamentally similar to that of the first embodiment above, except that the position where the protruding segments 8a, 12a, 8b, 12b are cut out after the forming step.

After forming the sheath 2, the projecting segments 8a, 12a are cut along the line X, while the projecting segments 8b, 12b are cut along the line W, as shown in FIG. Thus, the front ends of the projecting segments 8a, 12a extending angularly from the sheath 2 are connected in the end base 14a, while the front ends of the projecting segments 8b, 12b are joined to each other base 14b.

Through such a cutting step, it is possible to manufacture the composite component 40 having the circuit configuration of FIG. 20 formed by connecting the coil 17 and the external shape of FIG. 19 and the coil 17 and the capacitor 20 in series with each other. .

In addition, the manufacturing method of such a composite part 40 obtains the same function as shown in the first embodiment.

A fourth embodiment of the present invention is shown in FIG. 21 and FIG. By this manufacturing method, a transformer 41 having a primary winding 42 and a secondary winding 43 around the drum core 15 is provided in the first terminal member 7 instead of the coil 17, One end of the primary winding 42 of the transformer 41 is connected to the protruding segment 8a and one terminal of the secondary winding 43 is connected to the protruding segment 8b, the amount of primary and secondary The other ends of the windings 42 and 43 are jointly connected to the protruding segments 12a, respectively, and the positions where the protruding segments 8a, 12a and 8b and 12b are cut out are set in the same manner as in the first embodiment. .

By the above process, the composite part 50 having the connection method shown in FIG. 22 is manufactured.

And the method for manufacturing such a composite element 50 obtains the same function as the first embodiment.

Figure 23 shows the outer shape of a fifth embodiment of a composite element according to the invention.

The composite component 1 is composed of an inductor L and a capacitor C, and consists of an inductor L and a capacitor C having an inductance that fluctuates equally in FIG. 24 as shown in FIG. The inductance of is changed by the inductance control member 26 associated with the sheath 92.

25 and 26 are diagrams of a perspective view and an equivalent circuit of a sixth embodiment of the present invention. The difference from the fifth embodiment is that the inductor L and the capacitor C are connected in parallel with each other.

The following description describes the manufacturing process of the fifth and sixth embodiments.

First carried out in the same manner in the above-described steps described in FIGS. 1 to 4 are arranged in a plurality of circuit components in a plurality of pairs of terminal members, each of which is opposed to each other in a punched area of the lead frame. And molding, each of which is coupled within the base, connecting circuit components to the terminal member, and shaping the sheath, while the other steps added above are forming the yaw portion; Other steps to install the inductance control material. Such additional steps are described below with reference to FIGS. 27 to 20.

As shown in FIG. 27, the circular recess 25 is the center of the sheath 2 and is formed in the top of the coil 16 and has a column type inductance having a rotation control slot 26c on a shape set in the recess 25. There is a control member 26 (see FIG. 28). As a result, the member 26 is disposed above the coil 16. The plan view is the same as the display in FIG. And the protruding segments 8a, 8b, 12a, 12b are bent to contact the wall surface of the sheath 2 to obtain the desired fabrication as shown in FIG.

As the inductance control member 26, as shown in Fig. 31A, for example, the magnetic part 26a is made of 1/4 and the nonmagnetic part 26b is made of the rest.

However, the inductance control member 27 is composed of 1/2 of the magnetic portion 27a and the remaining nonmagnetic portion 27b as shown in FIG. 31 (b); Alternatively, the inductance control member 29 may be formed by using one consisting of 1/3 magnetic part 29a and the remaining nonmagnetic part 29b as shown in FIG. 31 (c).

For the purpose of ensuring stable rotation control, the relation of the diameter D of the inductance control member 26 with respect to the length d of the winding portion of the coil 16 is preferably selected to D >> d or D> d with sufficient conditions. In the inductor L of the coil 16 to perform inductance control with respect to the inductor L by the control member 26, the magnetic flux ø is generated by applying a current to the coil 16 of the inductor L, thereby inducing the inductance control member 26. Through the inclination from the N pole toward the S pole of the coil 16 as in FIG.

Assuming that the rotation angle θ of the inductance control member 26 is now zero, the magnetic portion 26a located in the lateral direction of the flange 15b will be symmetrically positioned with respect to the traveling direction of the magnetic flux ø as shown in FIG. It's time.

Thus, under such an arrangement, the inductance of the inductor L has a maximum value Lo as shown in the graph shown in FIG. And if the inductance control member 26 rotates in the positive (+) or negative (-) direction from the position of θ = 0 °, the inductance becomes smaller depending on the rotational position.

As a result, it is possible to selectively set the inductance of the inductor at a desired value by converting the rotational position of the inductance control member 26 suitably in the circuit state.

34 shows a sixth embodiment of the composite element according to the invention.

The difference between the composite parts 70 in the fifth and sixth embodiments in which the recessed portions are formed is that the recesses are formed in the molding step and have a positional deviation of a fixed distance g toward the flange 15b and the inductance control member 2 ) Is the mutual coupling in the recess.

As a result, the composite part 70 has a coupling structure similar to that of the fifth and sixth embodiments.

The manufacturing principle shown in FIGS. 7 to 10 and the manufacturing principle shown in FIG. 11 relating to the LR coupling circuit can be applied to any of the fifth to seventh embodiments.

Claims (29)

A plurality of pairs of terminal members formed opposite to each other in the punched area of the lead frame and formed by cutting a plurality of pairs of protruding segments coupled to their respective bases into a predetermined position, and a plurality of arranged between the protruding segments And a sheath formed in an area excluding the base of the circuit part and the protruding segment, wherein the front end of the protruding segment may extend from the sheath and have a different shape depending on the cut point. Composite component of an electronic circuit, characterized in that is bent along the wall surface. The composite component of an electronic circuit according to claim 1, wherein the circuit component is an inductor and a capacitor coupled to each other. The composite component of claim 1, wherein the circuit component is a transformer and a capacitor coupled to each other. The composite component of claim 1, wherein the circuit component is an inductor and a resistor coupled to each other. The composite component of claim 1, wherein the plurality of circuit components are connected in parallel with each other. The composite component of an electronic circuit according to claim 1, wherein the plurality of circuit components are connected in series with each other. The composite component of claim 1, wherein the plurality of circuit components are not connected to each other. A plurality of pairs of terminal members formed on opposite sides of the punched area of the lead frame and formed by cutting at each predetermined plurality of pairs of protruding segments thereof, the plurality of pairs of terminal members being disposed on the terminal members and at least A plurality of circuit components including a single inductor, a sheath formed in a region excluding the base of the circuit component and the protruding segment and having a recess at a predetermined position corresponding to the inductor, and partially made of magnetic material An inductance control member disposed in the recess, wherein the front end of the protruding segment, which extends out of the enclosure and has a different shape according to its cut point, is bent along the wall surface of the enclosure, and the inductance of the inductor is By adjusting the rotation angle of the inductance control member to the desired value Composite component of an electronic circuit, characterized in that can be set. 9. The composite component of an electronic circuit according to claim 8, wherein the circuit component is an inductor and a capacitor coupled to each other. 9. The composite component of an electronic circuit according to claim 8, wherein the circuit component is an inductor and a resistor coupled to each other. The composite part of an electronic circuit according to claim 8, wherein the circuit parts are connected in parallel with each other. The composite component of an electronic circuit according to claim 8, wherein the circuit components are connected in series with each other. The composite part of an electronic circuit according to claim 8, wherein the circuit parts are not connected to each other. The electronic circuit according to claim 8, wherein the inductor comprises a drum core and a coil wound around a central portion of the drum core, and the inductance control material is coupled at a position corresponding to the coil of the inductor. Composite parts. 9. The inductor of claim 8, wherein the inductor comprises a drum core and a coil wound around a central portion of the drum core, wherein the inductance control member is coupled at a position away from the coil in a direction toward any one of the flanges. Composite parts characterized by the above. The composite component of an electronic circuit according to claim 8, wherein the inductance control material partially contains a magnetic material. The composite part according to claim 8, wherein the inductance control member comprises a magnetic part and a nonmagnetic part. A plurality of circuit components are respectively arranged in a plurality of pairs of terminal portions formed opposite to each other in the punched area of the lead frame and coupled to their respective bases, and the necessary wiring is performed between the circuit components and the terminal members, Shaping the sheath with synthetic resin in an area excluding the circuit part and the base of the terminal member, cutting the front end of the terminal member extended out of the sheath at a desired position, and bending the shear part along the outer wall surface of the sheath. And a composite component having any one of a preferred mode among various connection modes is obtained by selectively changing the wiring of the circuit component and the unit value of the terminal member. 19. The method of claim 18 wherein the circuit component is an inductor and a capacitor coupled to each other. 19. The method of claim 18 wherein the circuit component is a transformer and a capacitor coupled to each other. 19. The method of claim 18 wherein the circuit component is an inductor and a resistor coupled to each other. 19. The method of claim 18 wherein the circuit component is a capacitor and a resistor coupled to each other. 19. The method of claim 18, wherein the terminal member is cut at a position for connecting circuit components in parallel. 19. The method of claim 18, wherein the terminal member is cut at a position for connecting the circuit components in series. A plurality of circuit components are respectively arranged in a plurality of pairs of terminal portions formed opposite to each other in a punched area of the lead frame and coupled to their respective bases, the circuit components including at least one inductor to be connected to the terminal member; Wires are made between the circuit component and the terminal member, and a sheath made of a synthetic resin is formed in an area excluding the base of the circuit component and the terminal member, and a predetermined position corresponding to the inductor is applied to the exterior. A recess is formed and an inductance control member composed of a magnetic material is disposed in the recess, the front end of the terminal member extending out of the sheath is cut at a desired position, and the front end is bent along the outer wall of the sheath. It is composed of the steps of making, one of the various connection modes A composite component having a connection mode is obtained by selectively changing the wiring position of the circuit component and the cutting position of the terminal member. 27. The method of claim 25 wherein the circuit component is an inductor and a resistor coupled to each other. 27. The method of claim 25 wherein the circuit component is an inductor and a resistor coupled to each other. 26. The method of claim 25 wherein the terminal member is cut in position for parallel connection of circuit components. 27. The method of claim 25, wherein the terminal member is cut at a position for connecting the circuit components in series.

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