JPH02121320A - Compound metalized capacitor - Google Patents

Abstract

PURPOSE:To slit-form multiple condensers independently by a method wherein multiple inner electrodes slit through the intermediary of insulating parts are arrayed in parallel with one another on the surface of a dielectric in the length direction thereof while multiple metalized contact regions are slit to disconnect the inner electrodes from one side metalized contact regions. CONSTITUTION:Multiple metalized inner electrodes 12 are arrayed in parallel with one another on the surface of a dielectric 11 in the length direction thereof. The inner electrodes 12 connected commonly to both adjoining metalized contact regions 14a disconnected from one side metalized contact region 14a by notching the connecting end of the inner electrodes 12. In such a constitution, condensers C1-C5 are formed respectively and independently in every part of inner electrode group disconnected from respective metalized contact regions 14a opposing to one another holding the dielectric 11 so that the title compound metallized capacitor may be composed by connecting lead wires to the metalized contact face in respective metalized contact regions 14a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a composite metallized capacitor that is used by being incorporated into electrical equipment.

[Conventional technology]

Conventionally, a so-called composite capacitor in which a plurality of capacitor parts are formed in a capacitor element R has been constructed by forming a plurality of capacitor parts in a dielectric (1) through an insulating part, as shown in FIG. 7, for example. A plurality of divided metallized internal electrodes (2) are provided, and the ends of the metallized internal electrodes (2) are covered with metallized silicon (
3).On the other hand, the internal electrode (5), which is not connected to the metallic contact (3) that faces the internal electrode (2) via the dielectric (1), is connected to the lead wire (4) via a metal foil. A lead wire (6) is formed on this metal foil internal electrode (5).
By connecting and leading out to the outside, a plurality of capacitors (two capacitors in the figure) as shown in the equivalent circuit diagram of FIG.

[Problem to be solved by the invention]

However, in the case of the conventional structure as described in 1-, first,
In order to bring out the internal electrode (5) connected to the metallic capacitor to the outside, it is necessary to sandwich the lead wire (6) or metal foil when winding the capacitor, which results in poor workability during winding. There were some problems.

Furthermore, if the internal electrode (5) not connected to the metallicon is made of a metallized electrode, it is difficult to connect the lead wire (6) directly to the metallized electrode.
The lead wire (G) must be connected to this metal foil at 1' with metal M"+ sandwiched between them.
1-1 This type of internal electrode derivation f method requires a two-step process l', which results in poor production efficiency. The reliability of the lead wire connection was uncertain, and the strength of the connection was also problematic.

The present invention has been made in order to solve the problems of the prior art, such as the following. The purpose is to provide the following.

[R stage to solve the problem]

・In order to achieve the above-mentioned objects, the present invention uses a dielectric material to separate a plurality of internal electrodes through insulating parts. ,
The metallic contacts connected to the internal electrodes are provided with an insulating part to divide them into a plurality of metallic contact regions, and both of the adjacent metallic contact regions are arranged in parallel in the longitudinal direction. By cutting the commonly connected internal electrodes from one metallicon area, the internal electrode groups cut in each metallicon area can form individual capacitors for each part facing each other across the dielectric. It is characterized by being formed by q.

[For production]

In the present invention, according to the configuration described in -1-, the metallcon is divided into a plurality of metallicon regions of arbitrary areas by appropriately dividing the metallicon by the insulating portion, and the internal electrodes connected to the metallicon are also divided into each of the metallicon regions. Because of the division, a composite capacitor is obtained having a plurality of capacitors with arbitrary capacitances in the intermediate capacitor elements.

In addition, since all internal electrodes can be led to the outside by connecting lead wires to the metallicon surface, connection reliability and sufficient connection strength 1y between the internal electrodes and lead wires can be obtained.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

1 to 4 show a composite metallized capacitor according to this embodiment. In these figures, (■) is a dielectric, and (12) is a plurality of metallized internal electrodes (I2) arranged in parallel in the length direction of one surface of the dielectric (11). These internal electrodes (12) each have an insulating part (1
3) It is subdivided through voids as. (14)
is a metallicon connected to the end of the internal electrode (12),
It is divided into a plurality of metallicon regions (14a) by insulating portions (15) provided at arbitrary locations.

In addition, the internal electrode (]2) which is commonly connected to both adjacent metallicon areas (14a) can be connected to one metallicon area (+48) by cutting out the connection end. disconnected.

In this way, the internal electrode groups cut for each metallicon region (+4a) are placed on both sides of the dielectric (11)! f
Capacitors (C1) to (C6) are formed independently in each portion facing each other, and each metallicon region (14a
), a composite capacitor is constructed by connecting lead wires (16) to the metallic surfaces of the capacitors (16).

In this embodiment, as shown in the internal configuration diagram in FIG. 3, the internal electrodes (12) provided on the negative side of the dielectric (II) are arranged in groups of several internal electrodes (a+) (C2), ..., and these internal electrode groups (a+) (C2)...
・Internal electrode (12) facing with the dielectric (11) in between
Similarly, several internal electrode groups (b+) (bz)...
By dividing the capacitor into two parts and shifting the positions of these parts so that they do not face each other, a composite capacitor having a structure as shown in the equivalent circuit diagram of FIG. 2 is obtained. In the figure, (A+) to (A5) indicate the lead-out portions of the internal electrodes (12).

Figures 5 and 6 show other embodiments of the present invention, and the composite capacitors shown in these figures are made by dividing each metallicon surface into two to form two capacitors. It is something.

In this embodiment, parts common to those in the previous embodiment are marked with the same symbol S). Also, in the figure, (B1)
~(B4) has the lead-out portion of the internal electrode with 4<L.

〔Effect of the invention〕

As explained above, in the case of the composite metallized capacitor of the present invention, a plurality of internal electrodes are arranged in 11 rows in the length direction of the dielectric material, which are subdivided through the insulating part. At the same time, the metallicon connected to the internal electrode is provided with an insulating part to divide it into N several metallicon areas, and the internal electrode commonly connected to both adjacent metallicon areas is connected to one of the metallicon areas. By cutting from the metallicon region, the internal electrode groups cut in each metallicon region sandwich the dielectric and form a capacitor in each portion facing each other, so that
In the middle capacitor element r-, multiple capacitors can be divided and formed independently, and by combining them in series and parallel connection, the rated voltage bar and electrostatic field of 4r can be achieved! A capacitor having a characteristic of j1 can be manufactured on its own, and can be widely used as a capacitor in various circuit devices.

In addition, since all internal electrodes can be led to the outside by connecting lead wires to the metallcon surface, connection reliability and sufficient connection strength between the internal electrodes and the IJ-T wire can be obtained.
1. Metal foil for connection such as a follower is not required, the number of parts can be reduced, and winding and forming can be easily performed, so productivity can be greatly improved.

4. A final explanation of the drawings Figures 1 to 4 show embodiments of the present invention. Figure 1 is an external perspective view, Figure 2 is an equivalent circuit diagram, and Figure 3 is an expanded internal structure. FIG. 4 is an enlarged view of the main parts in the unfolded state. 5 and 6 show other embodiments of the present invention, with FIG. 5 being an external perspective view and FIG. 6 being an equivalent circuit diagram. 7 and 8 show a conventional example, FIG. 7 is an external perspective view showing a state in the middle of winding, and FIG. 8 (xl is an equivalent circuit diagram).

(II)...Dielectric, (12)...Internal electrode, (1
3)...Insulating part, (14)...Metallicon, (14
a)... Metallicon region.

Figure 1 Figure 4 Fifth figure jt Figure 7 8th figure

Claims (1)

[Claims] A plurality of internal electrodes are arranged in parallel in the length direction on the surface of the dielectric material, and an insulating part is provided in the metallized contact connected to the internal electrodes, so that a plurality of By dividing the internal electrodes into metallicon regions and cutting the internal electrodes that are commonly connected to both adjacent metallicon regions from one metallicon region, the internal electrode groups cut for each metallicon region can be connected to each other by the dielectric A composite metallized capacitor characterized by independently forming capacitors in each part facing each other across the body.