JPS5847693Y2 - Resin case sealed capacitor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a resin-cased metallized plastic film capacitor.

This container is made by heating and molding a predetermined number of rolled up elements using metallized plastic film, and then forming a flat element 1. Metallicon 2 is sprayed onto both end faces of this element 1, and external lead terminals are placed on top of this. 3 is welded and inserted into a resin case 4, which is then filled and fixed with a thermosetting resin 5.

Conventionally, the lead terminals 3 used in this capacitor are provided with a flange 3A that matches the inner width of the case 4 (8 dimensions) in order to prevent the lead terminals 3 from falling against the case 4 and to stand up vertically.

However, when using this lead terminal 3, only cases 4 with the same inner width 8 dimensions can be used, and for cases with different inner widths B, lead terminals 3 matching the dimensions must be prepared. I had to.

The present invention uses lead terminals of the same size and separately attaches a terminal mounting plate that matches the 8 dimensions of the inner width of the case.

Lead terminals are usually made of brass to ensure electrical contact, but since the terminal mounting plate is a guide plate for attaching lead terminals, it is sufficient to use a tin plate, and the type should be made to match the case dimensions. Even if you prepare lead terminals, you will save on material costs compared to preparing multiple types of lead terminals.

Another advantage of tinplate is that it is easy to work with.

An embodiment of the present invention will be described with reference to the drawings.A flat plate 11 or a bent formed plate 12 has cutout portions 1 as needed.
A terminal mounting plate 10 having mounting holes such as 3 and elliptical holes 14 is used.

Note that when welding is used as the means for welding the terminal mounting plate 10, holes are not required for the above-mentioned mounting.

The mounting holes are only required when performing soldering work.

It is important that the width W of the terminal mounting plate 10 is approximately the same dimension as the inner width B of the resin case 4.

If a bent formed plate 12 is used as the terminal mounting plate 10, the width of the lead terminal 15 can be reduced.

and the width W of the bent part.

Since the dimensions are the same, by inserting the lead terminal 15 into the terminal mounting plate, the lead terminal 15 can be accurately regulated and mounted.

The combination of the lead terminal 15 and the terminal mounting plate 10 is placed on the capacitor element 1, soldered or welded to the metallic contact part 2, and then inserted into the resin case 4 and made of thermosetting material. A capacitor is obtained by filling with resin and solidifying it.

Since the terminal mounting plate 10 has the same dimensions as the resin case 4, the lead terminals 15 inserted into the end mounting plate 10 will not fall down with respect to the resin case 4.

When welding the terminal mounting plate 10 to the capacitor element by soldering, it is recommended that the notch width W1 of the terminal mounting plate be larger than the notch width bl of the lead terminal 15.
1. Easy to work with.

Since the present invention has the above configuration, the terminal mounting plate 10
Since it also serves as an assembly jig, if the lead terminals and terminal mounting plate are welded to the capacitor element in advance during preparation and then inserted into the resin case, there will be no variation in the mounting position of the lead terminals relative to the case. , excellent accuracy was obtained, and when the capacitor was assembled into a set, it became possible to reliably connect it to the mating terminal.

[Brief explanation of drawings]

Fig. 1 is a front and side sectional view showing a conventional container, Fig. 2 is a perspective view showing an embodiment of the terminal mounting plate of the present invention,
FIG. 3 is a perspective view of a lead terminal, FIG. 4 is a perspective view showing a state in which a lead terminal and a terminal mounting plate are attached to a capacitor element, and FIG. 5 is a sectional view of the capacitor of the present invention. 1... Capacitor element, 2... Metallicon, 4... Resin case, 5... Thermosetting resin, 10... Terminal installation Board, 15...
...Lead terminal.

Claims (2)

[Scope of utility model registration request] (1) In metallized plastic film containers whose resin case is filled with thermosetting resin, a board is used to mount terminals with a width that matches the inner width of the resin casing, and this terminal mounting connects the board and external lead terminals to the capacitor. A resin case sealed capacitor characterized by being welded to the metallic part of the element. (2) The resin case-sealed container according to claim 1, wherein the terminals are attached using a molded plate that is bent under force.