CN202855548U - Capacitor element and thin film capacitor made from capacitor element - Google Patents

Capacitor element and thin film capacitor made from capacitor element Download PDF

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Publication number
CN202855548U
CN202855548U CN201220484484.8U CN201220484484U CN202855548U CN 202855548 U CN202855548 U CN 202855548U CN 201220484484 U CN201220484484 U CN 201220484484U CN 202855548 U CN202855548 U CN 202855548U
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China
Prior art keywords
prime
sub
capacitor
shell
layer
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Expired - Lifetime
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CN201220484484.8U
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Chinese (zh)
Inventor
曹亚锋
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Changzhou Jiaguan Electronics Co Ltd
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Changzhou Jiaguan Electronics Co Ltd
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Priority to CN201220484484.8U priority Critical patent/CN202855548U/en
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Publication of CN202855548U publication Critical patent/CN202855548U/en
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Abstract

The utility model discloses a capacitor element. A surface of an electrode layer substrate is coated with a metal reinforcing layer. An edge of the electrode layer substrate is provided with a thickened edge layer which is subjected to thickening processing at the position where a lead-out electrode is welded, and the welding performance of the element is improved. The utility model also discloses a thin film capacitor made of the above element. The thin film capacitor comprises a pair of elements with thickening metal spraying layer at edges, and each element has a plurality of lead-out electrodes, an insulating medium between the two elements is made of semi-crystalline plastic, an element component is encapsulated in an epoxy resin shell, the shell is also filled with flame retardant epoxy resin, and the security is improved. Through the implementation of the scheme, the ability of impact current resistance of the capacitor is improved, and the welding performance and working stability are improved.

Description

A kind of capacitor element and the film capacitor that utilizes it to make
Technical field
The utility model relates to a kind of capacitor element, also relates to a kind of capacitor that utilizes this sub-prime to make, particularly a kind of film capacitor that utilizes this sub-prime to make.
Background technology
Capacitor is a kind of device of stored charge, realizes dynamic charge and discharge, and it is widely used in the middle of hyundai electronics, the electric equipment, and capacitor of the prior art has three drawbacks: the one, a little less than the shock resistance current capacity, when overload, damage easily; The 2nd, device work is in a single day breakdown, causes easily fire; The 3rd, the sub-prime of capacitor is very thin, and it is firm that external electrode is not easy to weld, and affects capacitor stability, causes easily damaging under impulse current.Some capacitors also adopt the aqueous chemical electrolyte, and its corrosivity is very strong, and fail safe is not high, also cause easily simultaneously environmental pollution.
Therefore, be necessary to provide a kind of sub-prime of easy welding electrode, to strengthen the welding performance of capacitor; Simultaneously, also be necessary to provide a kind of strong capacitor of ability of resistance to shock loads.
Summary of the invention
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, and the film capacitor that a kind of capacitor element is provided and utilizes this sub-prime to make.
The technical solution adopted in the utility model is such:
A kind of capacitor element, comprise the electrode layer matrix, surface at described electrode layer matrix scribbles metal shielding, be used for improving the welding conductive performance of capacitor element, the position that is used for the welding extraction pole at the edge of described electrode layer matrix is provided with the margo layer of processing through thickening, the position that namely need to weld extraction pole at the sub-prime edge thickeies processing, to reach the purpose that makes things convenient for the welding between extraction pole and the sub-prime.Described electrode layer matrix is selected aluminium alloy material.
A kind of film capacitor, comprise a pair of aforesaid sub-prime, insulating medium layer, extraction pole, shell, fill between the described sub-prime and form described insulating medium layer, the margo layer of described a pair of sub-prime is drawn respectively described extraction pole, sub-prime, insulating medium layer and extraction pole are filled thing and are encapsulated in the shell, each sub-prime is drawn respectively two extraction poles, under the simple prerequisite of technique, has further improved the ability of capacitor shock resistance electric current.
Select epoxy resin for the filler that encapsulates described sub-prime, insulating medium layer and extraction pole in the shell.The epoxy resin can is safe and reliable, makes capacitor nontoxic without leaking, and is beneficial to environmental protection.Simultaneously, can also prevent the breakdown or overheated fire that causes of electric capacity, its shell inner stuffing is selected the environmental protection flame retardant material, is reduced under the abnormal conditions and brings safety problem because of the damage of capacitor.Be mainly used in refrigerator, air-conditioning, alternating current motor, water pump, generator, household electrical appliance, industrial electronics etc.
Described insulating medium layer is polypropylene film; The edge of described extraction pole and described sub-prime is by being welded to connect; The material of described shell is the environmental protection flame retardant material, more preferably ABS (acrylonitrile-butadiene-styrene copolymer) or PBT(polybutylene terephthalate (PBT)).
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
1, this product is that four pin pins are drawn, both ends of the surface are respectively drawn two pin pins, disperse the end face electric current during work, than single lead-out wire or leading foot pin have more good stability, shock-resistant electric current, the large current capacity of overload is strong, loss is little, insulation resistance is high, the nominal operation life-span is long, self-healing performance is excellent.
2, the can of built-in environmental protection flame retardant epoxy resin is safe and reliable, and capacitor is nontoxic without leaking and fluent material, is beneficial to the characteristics such as environmental protection.
Description of drawings
Fig. 1 is the structural representation of the utility model capacitor element;
Fig. 2 is the sectional front view of the utility model film capacitor;
Fig. 3 is the section left view of the utility model film capacitor.
Among the figure: 1, reinforced layer; 2, electrode layer matrix; 3, insulating medium layer; 4, shell; 5, filler; 6, extraction pole; 7, sub-prime; 8, edge thickening layer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Embodiment 1:
As shown in Figure 1, a kind of capacitor element, this sub-prime with the allumen layer as electrode layer matrix 2, scribble metalized film reinforced layer 1 on its surface, the thickening processing is done in the position that is used for the welding extraction pole at the edge of sub-prime, form edge thickening layer 8, improve the welding performance of sub-prime and the performance of shock resistance electric current.
Embodiment 2:
As shown in Figures 2 and 3, a kind of film capacitor that utilizes above-described embodiment sub-prime to produce, comprise that a pair of allumen sub-prime 7 does electrode, it is the insulating medium layer 3 of making of polypropylene film between a pair of sub-prime 7, draw respectively two copper metal stitch as extraction pole 6 from the edge thickening layer 8 of two sub-primes 7, copper stitch and sub-prime 7 edges are by being welded to connect, filler 5 in the shell 4 is epoxy resin, sub-prime 7 and as the polypropylene film of dielectric layer 3 and with copper stitch one end of sub-prime 7 welding by epoxy encapsulation in shell 4.
The sub-prime edge adds thick electrode, apolar medium, and in order to the contact reliability of raising with gilding layer and external electrode, the sheet resistance of mobile layer is controlled at 3-8 Ω/, improves its whole ac voltage withstanding, and capacity stability is good, moisture-sensitive not, quiescent point is stable.
Lead-out wire uses four pin copper cash to draw, in alternating electric field loss little, caloric value is low, long service life.
ABS or PBT material shell, epoxy and shell all adopt the environmental protection flame retardant material and reach the 94V-0 grade, and security performance is more superior.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims (9)

1. capacitor element, comprise electrode layer matrix (2), it is characterized in that: scribble metal shielding (1) on the surface of described electrode layer matrix (2), the position that is used for welding extraction pole (6) at the edge of described electrode layer matrix (2) is provided with the margo layer (8) of processing through thickening.
2. capacitor element according to claim 1, it is characterized in that: described electrode layer matrix (2) is selected aluminium alloy material.
3. film capacitor, it is characterized in that: described film capacitor comprises a pair of sub-prime as claimed in claim 1 or 2 (7), insulating medium layer (3), extraction pole (6), shell (4), fill between the described sub-prime (7) and form described insulating medium layer (3), the margo layer (8) of described a pair of sub-prime (7) is drawn respectively described extraction pole (6), and sub-prime (7), insulating medium layer (3) and extraction pole (6) are filled thing (5) and are encapsulated in the shell (4).
4. film capacitor according to claim 3, it is characterized in that: each sub-prime (2) is drawn respectively two extraction poles (6).
5. it is characterized in that according to claim 3 or 4 described film capacitors: the filler (5) that is used for encapsulating described sub-prime (2), insulating medium layer (3) and extraction pole (6) in the shell (4) is selected epoxy resin.
6. according to claim 3 or 4 described film capacitors, it is characterized in that: described insulating medium layer (3) is polypropylene film.
7. it is characterized in that according to claim 3 or 4 described film capacitors: the edge of described extraction pole (6) and described sub-prime (2) is by being welded to connect.
8. according to claim 3 or 4 described film capacitors, it is characterized in that: the material of described shell (4) is the environmental protection flame retardant material.
9. film capacitor according to claim 8, it is characterized in that: described environmental protection flame retardant material is ABS or PBT.
CN201220484484.8U 2012-09-21 2012-09-21 Capacitor element and thin film capacitor made from capacitor element Expired - Lifetime CN202855548U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220484484.8U CN202855548U (en) 2012-09-21 2012-09-21 Capacitor element and thin film capacitor made from capacitor element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220484484.8U CN202855548U (en) 2012-09-21 2012-09-21 Capacitor element and thin film capacitor made from capacitor element

Publications (1)

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CN202855548U true CN202855548U (en) 2013-04-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102856073A (en) * 2012-09-21 2013-01-02 常州佳冠电子有限公司 Capacitor element and thin film capacitor manufactured with same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102856073A (en) * 2012-09-21 2013-01-02 常州佳冠电子有限公司 Capacitor element and thin film capacitor manufactured with same

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Granted publication date: 20130403