JPH01265508A - Capacitor array - Google Patents

Abstract

PURPOSE:To conduct the mounting work of a capacitor efficiently, and to contrive miniaturization of the capacitor as an electric accessory by a method wherein the capacitor unit such as a film capacitor is brought into a state of array by junctioning a plurality of the units with each other. CONSTITUTION:A capacitor array consists of the aggregate of three film capacitor units consisting of 11, 12 and 13. If the dimensions of the unit 11 is regarded as a standard, the unit 12 is formed a little longer than the unit 11, and the unit 13 is formed shorter than the units 11 and 12. As the units 11-13 are formed in such a manner that the area of metal thin film which is lapped with each other is differentiated, they have different capacitance. The units 11-13 are junctioned with a fitting resin layer 15. A pair of terminals 14 is attached to every unit of 11-13. As a result, the mounting work of the capacitor can be conducted efficiently, and the miniaturization of the capacitor as an electric assembly can be accomplished.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to capacitor arrays.

[Conventional technology]

Among the capacitors, for example, a film capacitor is constructed as follows. That is, FIGS. 8 and 9
As shown in the figure, one element is a film 1 with a high dielectric constant such as PET film with metal thin films 2 and 3 made of aluminum material pasted on both sides, and these multiple sheets are shown in Fig. 10. As shown, the metal thin films 2 are bonded in a laminated manner via an adhesive resin layer 5 which also serves as insulation, and are located on the top surface of each film 1...The metal thin films 2 are connected by one terminal 4, and each film Metal thin film 3 located on the bottom surface of 1 is also connected to other terminals 4,
The whole is composed. This film capacitor is normally completed by sealing the entire film capacitor with a sealing resin layer 5'' so that both terminals 4, 4 protrude outward. This film capacitor can have various capacitances by changing the overlap area of the metal thin films 2 and 3 above and below each element, or by changing the number of stacked layers. Now you can get things.

[Problem to be solved by the invention]

Conventionally, when a capacitor is mounted by, for example, inserting a terminal into a printed wiring board and soldering it, the capacitor must be assembled individually, which takes time and effort. Since mounted capacitors are usually placed apart from each other, they cannot be placed closely together, and as a result, it is difficult to compact the capacitor and printed circuit board as a single electrical component. It was becoming an obstacle.

In view of the above circumstances, an object of the present invention is to streamline the mounting work when using a capacitor, and also to make it possible to make the capacitor more compact as an electrical component.

[Means to solve the problem]

In order to solve the above problem, the present invention connects a plurality of individual capacitors, such as the film capacitor, to each other to form an array.

[For production]

By forming an array of multiple capacitors, the capacitors can be mounted simultaneously in a compact form.

〔Example〕

Hereinafter, embodiments of the present invention will be explained in detail with reference to the accompanying drawings.

1 and 2 show a first embodiment of a capacitor array according to the invention. As shown in FIG. 1, this capacitor array consists of a set of three film capacitors 11, 12, and 13. First to third capacitor units 11 to 13 are arranged in order, and for example, the cross section taken along the line A-A in FIG. 1 is the same as the cross section in FIG. 10, and the cross sections of the other units are also similar. Therefore, detailed explanation will be omitted here. The body portions of the individual capacitors 11 to 13 all have the same width W, but have different lengths (dimensions along the longitudinal direction of the array).

That is, if the dimensions of the first capacitor unit 11 are used as a reference, the second capacitor unit 12 is slightly longer than that, and the third capacitor unit 12 is slightly longer than the first capacitor unit 11.
The capacitor unit 13 is the first and second capacitor unit 1
It is formed shorter than 1.12. In this way,
Each of the individual capacitors 11 to 13 has a different overlap area of the metal thin film, so each capacitor has a different capacitance. These capacitors alone 11~
13, the main body portions are arranged in series and bonded to each other with an adhesive resin layer 15.15 before terminals 14.14 are respectively attached to both sides in the width direction. One capacitor array 10 is formed by this junction, and then the array 1
A pair of terminals 14 . . . are attached to each side of the capacitor 0 in the width direction. Each terminal 14 has its base 1
4a extends over the entire height of the capacitor body, and the tip 14b projects outward from the capacitor body. As shown in the figure, the tips of all terminals protrude in the same direction. The terminal 14・
Since the width W of each capacitor main body part is the same, it is easy to mount the capacitor, and for example, the width W of each capacitor body is the same, and the terminal arrangement is the same as that of a conventional DIP (dual in-line package). Soya 15.24+
It is also possible to standardize the terminal spacing to n or the like. As shown in FIG. 2, the capacitor array 10 is packaged with its outer surface sealed with a sealing resin layer 16. This packaging may be performed using a casting method or a transfer molding method in order to make the external dimensions of the capacitor array constant.

FIG. 3 shows a second embodiment, in which the array 20 includes three capacitor body portions 21 of the same size.
・ are connected in series by an adhesive resin layer 22, 22, and the base portions 23a to 25a of each terminal 23 to 25 have different lengths, and the terminals are sequentially connected from the first capacitor body portion to the third capacitor body portion. The mounting height is small. As a result, although the overall height of each capacitor main body portion 21 is the same, each capacitor has a different capacitance. That is, the capacitance decreases in the order of the first capacitor unit 26 having the longer mounting length, the second capacitor unit 27, and the third capacitor unit 28. In this way, terminals 23 to 25
By simply making the capacitors have different mounting lengths, the capacitor main body portion 21 can be made common to all capacitors, and capacitors with different capacities can be easily obtained, which is convenient.

FIG. 4 shows the third embodiment. The capacitor array 30 of the same embodiment uses three types of films with different widths (or lengths or thicknesses as the case may be), and wraps these films with an adhesive resin layer that also serves as insulation. and put these in the same package 3
4, and the terminals 35... can be taken out from each. That is, the structure of the capacitor main body is different from the stacked structure shown in FIG. 10, and is wound. In this case, it goes without saying that each of the capacitor body parts 31 to 33 with terminals 35 . . . attached constitutes a single capacitor.

As mentioned above, the capacitor array according to the present invention has the following features:
Since multiple individual capacitors each having a terminal and a structure that allows each to function independently are bonded together, there is no need to mount multiple capacitors individually (for example, it can be printed When mounting capacitors on a board, the mounting work is extremely efficient as the terminals protruding from the array are inserted into the board at the same time and soldered to secure them.Moreover, since they are arranged in an array, multiple capacitors can be mounted in a very compact space.

The device described so far is as shown in FIG. 5 and has a dual in-line type terminal 40, but the terminal structure is as shown in FIG. (Flant panocage) type terminal 41 like gull wing type terminal, QFP (
If the capacitor is bent inward like the Kwasotoflant package type terminal 42, it can be used as a surface-mounted capacitor array, which has recently become popular.

〔Effect of the invention〕

Since the capacitor array according to the present invention is configured as described above, the mounting work of the capacitors can be made more efficient, and the electrical component can be made more compact.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a first embodiment of a capacitor array according to the present invention, with the surface sealing resin layer removed, and FIG. 2 is a perspective view of the finished product of the same embodiment after being sealed. , FIG. 3 is a perspective view of the second embodiment, and FIG. 4 is a perspective view of the second embodiment.
The figures are perspective views of the third embodiment, and figures 5 to 7.
The figure is a perspective view of a capacitor array having various terminal structures, Figure 8 is a front view showing the structure of the element of a film capacitor, Figure 9 is a perspective view thereof, and Figure 1.
Figure 0 is a cross-sectional view of a conventional film capacitor.
FIG. 1I is an external view thereof. 10.20.30...Capacitor array 11-13
．． 26~28... Capacitor alone 14.23~2'
5.35.40-42...Terminal 16.34...Sealing resin layer 15.22...Adhesive resin layer Agent Patent attorney Takehiko Matsumoto Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10

Claims (1)

[Claims] 1. A capacitor array in which multiple capacitors, each with a terminal and a structure in which each capacitor can function independently, are joined together to form a single capacitor array.