CN202695137U

CN202695137U - High-reliability X2 capacitor

Info

Publication number: CN202695137U
Application number: CN 201220249981
Authority: CN
Inventors: 薛永
Original assignee: FOSHAN NANHAI XINYUAN ELECTRONICS Co Ltd
Current assignee: Foshan Xinyuan electronic Limited by Share Ltd
Priority date: 2012-05-28
Filing date: 2012-05-28
Publication date: 2013-01-23
Anticipated expiration: 2022-05-28

Abstract

The utility model discloses a high-reliability X2 capacitor, relates to the technology of improvement of capacitors, in particular to a technology for improving an X2 capacitor. The X2 capacitor comprises a capacitor body and lead-out wires; metalized polypropylene films are taken as media, metal coatings serving as electrodes are respectively coated on the two layers of the media, and the media and the electrodes are wound and subjected to epoxy enveloping, so that the media, the electrodes and a plastic shell form a capacitor; and the lead-out wires are welded on the edges of the metal coatings by bending a metal spraying layer namely a tin-coated copper-clad steel (CP) wire. By the X2 capacitor, the problem that the conventional X2 capacitor is low in reliability is solved.

Description

High reliability X2 capacitor

Technical field

The utility model relates to the improvement technology of capacitor arrangement, is specifically related to the improvement technology of X2 safety capacitor structure.

Background technology

The X2 capacitor, i.e. X2 safety capacitor, it can suppress power supply electromagnetic interference capacitor, and it is applicable to can not cause the occasion of shock hazard when capacitor lost efficacy, connect the pulse voltage that can bear 2.5kV such as power supply cross-line road.

Normal welding is adopted in traditional X2 electric capacity welding, and contact area is little, and in the higher occasion of some instructions for uses, easily appearance open circuit or welding are hindered film and caused that loss increases, and cause capacitor to re-use fried plate in the process, are difficult to reach requirement.

The utility model content

The utility model provides a kind of high reliability X2 capacitor, and the utility model solves the problem that existing X2 capacitor does not have high reliability.

For addressing the above problem, the utility model adopts following technical scheme: high reliability X2 capacitor comprises capacitor body and lead-out wire; Take metallized polyimide the third film as medium, be coated with respectively the coat of metal as electrode above the two layer medium, medium and electrode roll are sealed the formation capacitor body around, epoxy; At coat of metal edge gilding layer CP line bent jointing lead-out wire.

Capacitor of the present utility model mainly uses and is being used for bracket power cross-line part, and the L/N cross-over connection of power supply input is carried out EMI and suppressed usefulness, and input port use in parallel.Because this capacitor longevity of service requires condenser loss little, reliability is high.Adopt the welding lead-out wire to flatten, the contact area that increases lead-out wire reduces loss.Adopt the technology bend, the effectively fixedly position of fuse cutting lead-out wire.The capacitor lead-out wire is placed in the middle, and pin is easy for installation apart from high conformity.

The utility model is a kind of high reliability, low-loss capacitor.The utility model capacitor, high-frequency loss is little, self heats up little, reliability is high, temperature capacity is strong, and dielectric behavior is stable, also has stronger moistureproof ability and resisting temperature impact capacity, be mainly used in power supply cross-line part, the L/N cross-over connection of power supply input is carried out EMI and is suppressed usefulness, and the input port circuit that uses in parallel, can work under 100 ℃ of operational environments for a long time again.This kind capacitor safe performance is high, highly reliable, safety and environmental protection, fire resistance are high, and the outward appearance high conformity can be used under the occasion of high-frequency, large electric current.

Description of drawings

Fig. 1 is the utility model front view;

Fig. 2 is the end view of Fig. 1;

Fig. 3 is the sectional view of the utility model capacitor body.

Symbol description among the figure: W: capacitor body is wide; H: capacitor body height; T: capacitor body thickness; P: draw wire spacing; D: lead-out wire diameter; 1: metallized film stays the limit amount; 2: metallized polyimide the third film width; 3: unfitness of butt joint and gilding layer; 4: coat of metal width; 5: lead-out wire.

Embodiment

The below is described in detail the utility model with best embodiment.

As Figure 1-3, high reliability X2 capacitor comprises capacitor body and lead-out wire; Take metallized polyimide the third film as medium, be coated with respectively the coat of metal as electrode above the two layer medium, medium and electrode roll are sealed the formation capacitor body around, epoxy; At coat of metal edge welding lead-out wire, the lead-out wire bending is drawn.

It should be noted that at last: obviously, above-described embodiment only is for the utility model example clearly is described, and is not the restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And the apparent variation of being amplified out thus or change still are among the protection range of the present utility model.

Claims

1. high reliability X2 capacitor comprises capacitor body and lead-out wire; It is characterized in that, take metallized polyimide the third film as medium, be coated with respectively the coat of metal as electrode above the two layer medium, medium and electrode roll are sealed the formation capacitor body around, epoxy; At coat of metal edge gilding layer CP line bent jointing lead-out wire.