JPS5958814A - Method of producing metallized film condenser - 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 The present invention relates to a method for manufacturing a coated film capacitor in which a safety function is provided to the capacitor element itself.

In recent years, there has been a strong demand for dR measures for capacitors, and many measures have been taken regarding safety functions), and those that are generally put into practical use are The resulting deformation of the case is used to cut the lead set. However, these structures had a complicated hq structure, and even if they were 90cm wide, there would be only one island.As a result, recently, as shown in Figure 1, margins (1 ), and the margin part (1) and tMkN, 11M margin parts (2) are provided intermittently in the length direction, and a thickness of VJ 'am (3) is formed. A capacitor element (5) is constructed by laminating a pair of windings (1), and a large number of capacitor element elements of small capacity sources are connected in parallel in the element (5). Even if a part of the capacitor is destroyed, the function of that part is only lost and there is no effect on other capacitor elements, thus preventing an explosion from occurring.
Things that have been designed to stop this are attracting attention. However, conventional means for forming a plurality of intermittent margin parts in the length direction have been used.
There is one disclosed in Publication No. 23. As shown in FIG. 2, what is disclosed in the publication is a ferruled film (8) in which a vaporized dragon pole (7) is provided on the entire surface, leaving a margin part (6) at one end in the width direction. A first roller (9) whose entire circumferential surface is electrically conductive is provided on the surface of the steamer (7), and a plurality of rollers (10) are provided on the outer circumferential surface of the frame structure. 2' Turtle roller (
11) are brought into contact with each other at a certain interval, and the power supply (
Apply p' masticating pressure to [12] and feed the cracked film (8) in the direction of the arrow. , portions (10) of the fish layer electrode flO) are scattered by sparks to form Mk margin portions (13) intermittent in the length direction. However, if such a method is used, it is foolish that sufficient scattering will not be carried out because the evaporator pole powder scattered on the special army (lO) will not be sufficiently scattered, or the film will be damaged by the acid pole powder. This had the disadvantage of lower insulation resistance and breakdown voltage characteristics.

The purpose of the present invention Q is to provide a fortification method for a metallized film capacitor in which a safety function is provided to the capacitor element itself by providing a shimmering margin for non-contact discharge. It is something to do.

The inner world of the present invention will be explained below with reference to the drawings. That is, as shown in FIG. 3, a semicircular N insulator (22) with a linear 'am (21) arranged inside is fixed, and an insulating support in the form of a hexagonal column, for example, is fixed inside the semicylindrical insulator (22). Laura (1
3) is implanted in a rotating state without contacting the linear electrode (21). At the same time, the insulated support roller (2
3) and a linear electrode (21) arranged on a semi-cylindrical insulator (22).
), for example, a metallized film (26) on which a steaming electrode (25) is formed on the entire surface, leaving a margin (24) on one end in the width direction, and a conductive roller attached to the steaming electrode (25). The electrode (27) is moved in the direction of the arrow in contact with the linear electrode (21) and the isoelectric roller electrode (27) to generate an electric current through a current limiting resistor (2 days). Then, a high voltage is applied.As the metallized film (26) is fed, the hexagonal column-shaped insulating support roller (23) rotates, and the corner (
30) Place &k'a'D (25) Non-contact radiation on tJ.
] As a result of continuous feeding of the film (26), the margin portion (31
) is used to apply a safety mechanism to the smart turning capacitor element itself using a winding machine (not shown), which is made up of a single bait. Figure rJ,
10F'J tube lees whale body equipped with IIM-shaped electrode (21)
FIG. 22 is a bottom I1 diagram showing hemorrhoids.

Due to the above steps, #47 tun and other scattering can be done without contact.
Because of this, unlike the conventional contact method, mk
This has the advantage that the insulation resistance and breakdown voltage characteristics are stable without damage to the metallized film due to mechanical stress applied to the A-formed film, ie, evaporated electrode powder.

First, the effects of the present invention will be described using a practical example.

That is, the present invention in which a plurality of 7-gin parts are formed by the non-contact method shown in FIG. 3, and the conventional example in which fy number of margin parts are formed by the contact method shown in FIG.
The wound edge resistance and breakdown voltage characteristics of V, AC-/LPF metallized polyethylene tere 7 talate film capacitors are shown in FIGS. 5 and 6. Note that the linear electrode in the present invention is a 0.3u tungsten wire.
/second, and the distance between the corners of the helical pole and the hexagonal columnar insulating support roller was set to be 1lj11 rIo, 5++s+. In addition, in the conventional example 2, the electrode roller e in the east 1 is an IC type with a metallized peripheral surface, and the second electrode roller t is an IC type with a tungsten wire provided as a conductive wire on the outer peripheral surface of the lees edge material. The applied voltage r is C70V. Incidentally, the spacing between the margin parts was set to 10 in both the present Komaei and the conventional example, and the number of samples was 20 each.

As is clear from FIGS. 5 and 6, the hexagonal prism-like structure according to the present invention is illustrated as an example, but as shown in FIGS. An insulated support roller (32) or another polygonal column may also be used. (33) is an angle.

As shown in FIG. 1CI and FIG.
34] is made up of several pieces of eel, which is more effective in improving running speed.

＋　35　) k indicates a semicircle @ insulator.

As described above, according to the present invention, a plurality of margin stands IS are installed at intervals in the direction of the film to prevent sludge from scattering due to non-contact discharge. Furthermore, it is possible to obtain a method for manufacturing a metalized film capacitor in which the capacitor element itself has a stable plate-to-vehicle pressure characteristic and is coated with an anti-oxidant coating.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the surrounding area during winding of a general capacitor electronic equipped with a floor safety rudder, and Figure 2 is a conventional example of SopL.
, Jl, a schematic diagram showing the steps, a third diagram a schematic diagram showing the main steps involved in the present invention, and a bottom surface showing the semi-cylindrical insulator with the kneaded electrode shown in FIG. 3 in FIG. 4. Figure 5: Figure 1 shows the insulation resistance characteristics, Figure 6 shows the breakdown characteristics, Figures 7 to 9 show the insulation resistance characteristics.
The figures are perspective views showing insulated support rollers according to other embodiments of the present invention, and Figures 10 and 11 are respectively diagrams showing other embodiments in which the present invention is maintained but the arrangement of the tactile grooves is changed. This is a bottom view showing the semi-cylindrical insulator of
2) −= Tiding support roller (25) −−−−−−−
Yi Steaming Film (261)
−−−−−−−−− One roller love (28) −−−−
−−−−− Current limiting resistor (29) ~−−−−−−−
-゛tun source (301 (331---One corner (31) -------------Margin part special W"
11.1 Marukon Electronics Co., Ltd. Figure 1 Figure J

Claims (1)

[Claims] A 2M torturous roller was placed in advance between the powder electrode provided inside the half-tube shaft edge and the polygonal columnar insulated support roller, which was configured to rotate without contacting the linear electrode. At the same time, a metallized film with a steam electrode formed on the surface of which the wire is in contact is conveyed, and a current is passed between the linear wire and the roller electrode through a limiting resistor.
Applying a storm pressure, the vaporized VL electrode located between the powder electrode and the corner of the insulated support roller is scattered by non-contact discharge to intermittently create a plurality of margins in the length direction of the plate-forming film. 1. A method of manufacturing a metallized film capacitor, comprising: forming a capacitor element, and then forming a wound capacitor element.