JPS62189710A - CR composite parts - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to circuit components for electronic equipment, "ift equipment, computing equipment," and more particularly, to
It concerns composite parts.

(Prior Art) Conventionally, there have been many cases in which capacitors and resistors are used in combination for various purposes. In this case, use a combination of capacitors and resistors on the circuit, or use a third
As shown in the figure, CR composite parts were used.

FIG. 3(a) shows an example of a CR composite part for noise prevention, and FIG. 3(b) shows an example of a CR composite part with a discharge circuit. 31 is a film capacitor, 32 is a resistor, and 33 is a casting resin.

34 is a case, and 35 is a lead wire.

(Problems to be Solved by the Invention) However, when combining the above conventional capacitor and resistor on a circuit, two completed components are mounted on a printed circuit board, which has disadvantages in terms of cost, rationalization, and miniaturization. Was. In addition, conventional CR composite parts have the disadvantage that they are expensive to manufacture and are not suitable for miniaturization because they connect semi-finished film capacitors and resistors and are covered with a case. Furthermore, the manufacturing process differs depending on whether the film capacitor and the resistor are connected in series or in parallel, which also poses a problem in terms of streamlining the II-cocost manufacturing process.

The present invention solves the above-mentioned conventional drawbacks by integrating a film capacitor and a resistor, and furthermore, using a CR that allows the film capacitor and resistor to be connected either in series or in parallel.
The purpose is to provide composite parts.

(Means for solving the problem) In order to achieve this objective, the CR composite part of the present invention:
A film capacitor part formed by winding a metallized film, and a resistor part formed by winding an insulating film with a resistor film formed on at least one surface and arranged concentrically on the center side or the outer periphery side of the film capacitor part. , electrode parts for lead extraction formed on both end faces of the film capacitor part and the resistor part, and between the film capacitor part and the resistor part,
It is constructed from an electrode separation part made of an insulating film that is wrapped around the two so as to electrically isolate them and slightly protrudes outward from at least one end surface.

(Function) With the above configuration, it is possible to manufacture CR@-joint parts that can connect a capacitor and a resistor in either series or parallel.
This enables rationalization of manufacturing, cost reduction, and miniaturization.

(Example) Examples will be described below with reference to the drawings.

FIG. 1 shows an overall view of a CR composite part in one embodiment of the present invention. In FIG. 1, 11 is a film capacitor section, 12 is a resistor section, and 13 is wound between the film capacitor section and the resistor section, and slightly protrudes from one end surface of the wound body consisting of the film capacitor section and the resistor section. An electrode separation part made of an insulating film, 14 is an electrode part for lead extraction, 15a, 15b, 1
5c are lead wires.

FIG. 2 schematically shows the main structure of the CR composite part shown in FIG. 1. In FIG. 2, 11 is a film capacitor section, 12 is a resistor section, and 13 is an electrode separation section in which an insulating film capacitor is wound so as to protrude from one end surface. Furthermore, 24 is a vapor deposited electrode formed on both sides of the dielectric film 25, 25a is a non-vapor deposited dielectric film, and 26 is a resistor film formed on one side of the insulating film 27. Further, 28 is an insulating film constituting the electrode separation section 13, and 29 is a capture film.

The CR composite component configured as described above will be explained below using a specific example.

On both sides of a polyethylene terephthalate (hereinafter referred to as PET) film having a thickness of 6 μm, non-evaporated portions were provided alternately at the edges of each side.

A film (corresponding to the dielectric film 25 in FIG. 2) made by vacuum-depositing aluminum and cutting it into a width of 10 mm, and 91
Non-deposited PET films (corresponding to the non-deposited dielectric film 25a) cut to a width of 1I11 are stacked alternately.
It is wound to have a capacitance of 0.1 μF. Then 6μm
A PET film (corresponding to the insulating film 28) having a thickness of 12 + + m is cut into a width of 12+++ m and wound several times so as to protrude from one end surface. Furthermore, one side of the PET film with a thickness of 6 pm was coated with a sheet resistance of 250 Ω.
A film was prepared by uniformly depositing a Ni-Cr alloy with a composition ratio of 8:2 and cutting it to a width of 10 mm and a length of 21 mm.
(corresponding to the insulating film 27) was wound up together with a non-deposited PET film cut to a width of 9 ma+. The winding core of this element was crushed and zinc was sprayed to provide a lead extraction electrode part (corresponding to FIG. 14). After that, the sprayed metal adhering to the protruding film portion is removed, and the electrodes on one side of the film capacitor portion and the resistor portion are separated. Then, lead wires are welded to this element as shown in FIG.

The element manufactured in this way was packaged with a case or resin to complete a CR composite part. Here, the lead wire 15a
A lead wire 15b is drawn out from the electrode common to the capacitor section and the resistor section.

The lead wires 15b are lead wires 15c, which are drawn out from the electrodes of the capacitor section and the resistor section, respectively.

If used between 15a, the capacitor section and the resistor section will be connected in series, and if lead wires 15b and 15c are connected and used between this and lead wire 15a, they will be connected in parallel. Therefore, this element has performance equivalent to that of a 0.1 μF capacitor connected in series or in parallel with a 120Ω resistor.

As described above, according to this embodiment, since the insulating film is wound between the film capacitor section and the resistor section so as to protrude from at least one end surface, it is possible to connect in both series and parallel. It can be used as a CR composite part. Also.

Three types of capacitors and resistors can be manufactured in almost the same process: those connected in series, those connected in parallel, and those that can be connected later in either series or parallel, resulting in rationalization of manufacturing, cost reduction, and compact size. was realized.

In this example, all dielectric films were 6 μm.
The PET film of I was used because it is preferable for production and use to have uniform thermal and mechanical properties, but this is not necessarily the case. In addition, although a Ni-Cr alloy vapor deposited film was used as the resistor film, it is also effective to use other materials. For example, it is also possible to create a high resistance metal vapor deposited film by thinly and uniformly vapor depositing palladium or the like on the film. possible, and is effective in obtaining a large resistance value. In addition, silver
copper.

A coating film of conductive paint using nickel or the like can also be used as the resistor film. in this way.

The resistor film material is not limited to Ni-Cr alloy.

Also, the resistor part is not located on the outer periphery of the film capacitor.
It may be provided in the center or on both sides.

(Effects of the Invention) As explained above, according to the present invention, another film is wound around a conventional film capacitor so as to protrude from at least one end face, and a film provided with a resistor film is further wound around the conventional film capacitor. This allows the film capacitor and the resistor to be connected either in series or in parallel after the electrode portion for lead extraction is formed.

From this, an excellent C
It is possible to realize R composite parts.

[Brief explanation of drawings]

Fig. 1 is an external view of a CR composite part according to an embodiment of the present invention, Fig. 2 is a cross-sectional view schematically showing the main structure of the CR composite part, and Fig. 3 is a conventional CRI composite part. FIG. 2 is a cross-sectional view showing a configuration example. DESCRIPTION OF SYMBOLS 11... Film capacitor part, 12... Resistance part, 13... Electrode separation part, 14... Lead extraction electrode part, 15a, 15b, 15c... Lead wire,
24... Vapor deposition electrode, 25, 25a... Dielectric film, 26... Resistor film, 27.28... Insulating film, 29... Capture film. Patent applicant Matsushita Electric Industrial Co., Ltd. Figure 1 I2...Arashi Kenchu 13/Old itI! ＃Difficulty? Ya 14... 1 node 51 Yo 6 pieces 1 sentence etc. 2, Ki 41e
1shi 15 oj 5b, 15c ・Leet gravel Fig. 2 Fig. 3 (b)

Claims (1)

[Claims] A film capacitor section formed by winding a metallized film and an insulating film having a resistor film formed on at least one surface are wound and arranged concentrically on at least one of the center side and the outer circumferential side of the film capacitor section. a resistor section,
An electrode portion formed on both end surfaces of the film capacitor portion and the resistor portion, and a wire wound between the film capacitor portion and the resistor portion so as to electrically separate the two, and an electrode portion formed on both end faces of the film capacitor portion and the resistor portion. and an electrode separation section made of an insulating film that projects slightly outward from at least one end surface of a wound body consisting of.