CN2039873U

CN2039873U - Cym 1-1 type film dielectric pre-adjusting capacitor

Info

Publication number: CN2039873U
Application number: CN 88215873
Authority: CN
Inventors: 严林建
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-11-04
Filing date: 1988-11-04
Publication date: 1989-06-21

Abstract

The utility model relates to a CYM 1-1 type film dielectric pre-adjusting capacitor, which is composed of a rotating shaft, a rotor plate, a stator plate, media, a gasket, a bottom board and a casing. The rotating shaft adopts a milling flat shape. The utility model has the advantages of reasonable assembly, simple structure and easy use, and therefore, the old method that the special existing pressing apparatus is used for assembling the capacitor is changed and the work efficiency is improved.

Description

CYM 1-1 type film dielectric pre-adjusting capacitor

The utility model belongs to electronic devices and components.

CYM1-1 type thin film dielectrics pre-set capacitor is the capacitor that is widely used in radio and other electronic equipment.Constitute by rotating shaft, moving plate, stator, medium, packing ring, base plate and shell.The parts processing request height of such capacitor in the past, the structure member of rotating shaft is circular, will rely on special-purpose pressing element during assembling, efficient is low, about 100 of per tour people output.Simultaneously because the restriction of rotor plate shape, when making moving plate Rotate 180 ° and stator be easy to generate wrong sheet and damage electric capacity, Tianjin element two factories for example, such capacitor of plant produced such as Jiangxi 897 factories.

The purpose of this utility model is exactly in order to solve the assembling difficulty of such capacitor, improves work efficiency, reduces the capacitance damage rate and to the improvement of capacitor arrangement spare.

Feature of the present utility model is: the structure member of rotating shaft adopts and mills flat structure; Moving plate adopts

Type; Medium adopts any high-frequency film medium; Adopt by distinctive protrusion position pressing tight with it on the shell at the leg position of shell and stator; Assemble the employing riveting molding that finishes.

Accompanying drawing one is prior art pivot structure figure;

Accompanying drawing two is the utility model pivot structure figure;

Accompanying drawing three is prior art moving plate structure charts;

Accompanying drawing four is the utility model moving plate structure charts;

Accompanying drawing five is the utility model shell mechanism schematic diagrames.

Further specify the utility model below in conjunction with accompanying drawing.

In prior art, cold pier moulding is all adopted in the rotating shaft of such capacitor, so mould system Make difficulty, very high to the required precision of copper material, processing is difficulty relatively. And because its structure member is columniform, shown in figure one, therefore when assembling, adopt Special tamp, and every dress a slice stator, or moving plate will compress once with machine, and an electric capacity will be pressed about 6 times, so inefficiency, and finished product is fragile. Pivot structure part 1 of the present utility model adopts mills flat method, shown in figure two, the mating part of moving plate and rotating shaft is also done corresponding improvement, change oblong aperture into by circular hole, as long as put axle when assembling like this, saved the quite high and expensive Special tamp of making precision, operating efficiency is improved greatly.

Moving plate 2 of the present utility model adopts

Shape, shown in figure four, its advantage is: (1) reduces initial capacity; (2) guarantee that moving plate always has certain face that overlaps with stator in 360 ° of rotations, thereby make moving plate and stator can not produce wrong sheet.

Because the improvement of above two kinds of structures makes when producing the utility model, to the required precision reduction of material, can adopt arbitrarily low precision copper strips, the requirement of medium also reduces greatly, can adopt any high-frequency film medium.

For easy assembly process, fixing of stator leg of the present utility model, employing has a projection 3 on the contact site of shell and stator leg, shown in figure five, press to cooperate with the stator leg by this projection and form, thereby changed and adopted stator leg and base plate to scald weldering in the past to be connected and to bring the method for influence, omitted boiling hot welder's preface to outward appearance.

With the CYM1-1 type thin film dielectrics preset electric capacity that method of the present utility model is made, have rational in infrastructure, assembling is simple, reduce cost, improve the advantage of work efficiency, and can prolong life of capacitors, is the desirable components and parts in radio, the electronic equipment.

Claims

1, CYM1-1 type thin film dielectrics pre-set capacitor is made up of rotating shaft, moving plate, stator, medium, packing ring, base plate and shell, it is characterized in that:

(1) the pivot structure position is adopted and is milled flat structure;

(2) moving plate adopts

Type;

(3) medium adopts any high-frequency film medium;

(4) there is a protuberance at the relative position with the stator leg of shell;

(5) assemble the employing riveting molding that finishes.

2, pre-set capacitor according to claim 1 is characterized in that moving plate has certain face that overlaps with stator all the time in 360 ° rotation.