JPS593563Y2 - polar capacitor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polar coating, and more particularly to an arrangement of lead terminals thereof.

Conventional polar capacitor 10.20 is shown in Figure 1A Figure 2A
As shown in Figures 1B and 2B, the polarities of the lead terminals 11 and 21 are symmetrical when viewed from the center of the terminal drawing surface, although they are symmetrical in appearance, as shown in Figures 1B and 2B, respectively. Therefore, when mounting on a printed circuit board, etc., the polarity was reversed, which often resulted in the mounted circuit not working properly or destroying the capacitor.

An object of the present invention is to provide a polarized capacitor that can be used in any direction without any problem with polarity, which eliminates the above-mentioned drawback of the conventional method of inserting the capacitor with the wrong polarity.

In other words, the present invention is drawn out in the same direction,
In a polarized capacitor having a plurality of polarized terminals, the terminals located symmetrically from the center of the surface from which the terminals are drawn out have the same polarity. It provides a polar capacitor.

Next, a first embodiment of the present invention will be explained in detail with reference to FIG.

3A, B, and C are examples of the polarized capacitor according to the present invention, A is an assembly diagram, B is a circuit diagram, and C is an example of a terminal drawing surface.

First, metal with valve action such as tantalum is formed into the desired shape, anodized to form a dielectric material, and conductive layers of manganese dioxide layer, graphite, and silver paste are sequentially formed to form four capacitors arranged in a line. The anode lead wires 2 of the element 1 are connected to each other with tantalum and a metal bonding wire 3 that can be welded into one, and a common anode lead terminal 5 is taken out approximately in the center of the terminal lead-out portion, and then a cathode lead terminal 4 is taken out.
is taken out from each capacitor element 1 and pulled out in one direction, and the four capacitor elements 1 are coated with an exterior resin 6 such as epoxy.

The structure in which the condenser elements 1 are integrated and the terminals are drawn out is as shown in FIG. It may be pulled out and packaged to form the following.

In the above-mentioned embodiment, the anode terminals of each capacitor element are integrated, but it goes without saying that there will be no problem even if the anode terminal and the cathode terminal are replaced and the cathode terminal is integrated and drawn out to the center.

Next, another embodiment of the present invention will be described with reference to FIG.

Figure 4 shows a composite coating containing multiple containers in one package (indicated by dotted lines).
FIG. 4A shows a method of arranging terminals according to the present invention for a single coating of a single capacitor element. FIG. As a whole, anode lead-out terminals are arranged at both ends of a plurality of cathode terminals led out from each element.

In this method, the electrodes of the condenser elements drawn out in an integrated manner can be either an anode or a cathode, and the number of condenser elements is not limited to any other than three or four.

In FIG. 4B, one integrated electrode terminal is arranged in the center of the other electrode terminal drawn out individually, and here they are integrated using the same arrangement method as in the first embodiment. This shows the case where an electrode terminal and a cathode are used.

In addition, this terminal arrangement has a number of capacitor elements other than 4.
Of course, the same procedure can be applied to the case of 4.8 pieces and so on.

In FIG. 4C, the anode terminals of two capacitor elements are individually arranged adjacent to each other at approximately the center of the extraction surface, and the cathode terminals of each capacitor element are arranged outside the anode terminal. When looking at the terminal from approximately the center of the lead-out surface of the terminal, terminals that are symmetrical have the same polarity.Even in this case, the anode and cathode terminals may be interchanged in position, and the capacitor element It is also possible to use any even number other than 2, such as 4 or 6.

The fourth scheme uses two sets of two condenser elements with cathode terminals integrated and drawn out, and anode terminals drawn out individually, and the integrated cathode terminals in each set are arranged toward both ends of the terminal drawing surface. However, each anode terminal is arranged between both cathode terminals.

In this case, the anode and cathode may be interchanged as they are, and the number of capacitor elements is completely free, although the case where two capacitor elements are packaged as two sets is shown here.

Figure 4E shows a packaged structure in which an anode terminal is drawn out from one capacitor element, and two cathode terminals are connected to the same cathode at both ends of the anode terminal to form two branches. The terminal provided therein may of course be an anode.

As described above, in the polarized capacitor according to the present invention, the lead terminals of the same polarity are located symmetrically from the center of the terminal part, so no matter which direction it is inserted, the printed circuit board can be designed in advance to match the polarity of the capacitor. If you do this, there will be no polarity errors when inserting.

[Brief explanation of drawings]

Figure 1A is a plan view showing a conventional polarized capacitor;
Figure B is its equivalent circuit diagram, Figure 2A is a plan view showing a conventional composite polar capacitor, Figure 2B is its equivalent circuit diagram, and Figure 3A is a diagram showing the polarized capacitor of the present invention. FIG. 3B is an equivalent circuit diagram, and FIG. 3C is a diagram showing an example of how to draw out the terminals. 4A to 4E are diagrams schematically showing other embodiments of the present invention by type. Codes in the diagram 1, 10. 20... Condenser element, 2... Anode lead wire, 3...
...Anode bonding wire, 4...Cathode lead terminal, 5.
...Common anode lead terminal, 6...Exterior resin, 11.21...Lead terminal.

Claims (1)

[Scope of utility model registration request] In a polarized condenser that has a plurality of terminals that are pulled out in the same direction and have polarity, the terminals that are symmetrical when viewed from approximately the center of the surface where the terminals are pulled out have the same polarity. A polarized capacitor characterized by: