CN1705046A

CN1705046A - Flame resisting capacitor

Info

Publication number: CN1705046A
Application number: CN 200410047247
Authority: CN
Inventors: 塚野信之; 吴中铭; 李志辉
Original assignee: LELON ELECTRONICS CORP
Current assignee: LELON ELECTRONICS CORP
Priority date: 2004-05-28
Filing date: 2004-05-28
Publication date: 2005-12-07
Anticipated expiration: 2024-05-28
Also published as: CN100380542C

Abstract

This invention provides a fire resisting capacitor, which contains a shell, a curl texture and c cap, wherein the shell having a space for holding curl texture and can be enclosed by cap, said curl texture consisting of anode foil, electrolyte paper and cathode foil which are lap wrapped under non short circuit, the cathode foil being at variance with the one end of the holding space and contacted with the bottom surface of the holding space, which greatly reduces the air quantity to be stored and then reduce s the possibility of air combustion aid firing.

Description

Fire-resistant capacitor

Technical field

The present invention mainly discloses a kind of capacitor, especially refers to a kind of nonflammable capacitor.

Background technology

Modern science and technology day the crescent benefit, especially also progress greatly day by day in response to the growth of high-tech industry in the field of electronic component, for the consumer can be provided more perfect, handy and safe product, the manufacturer of numerous association areas is constantly making great efforts at known technology and product, further research and develop and improve, in the hope of the upgrading and the progress that can promote industry.

Present known capacitor, as shown in Figure 6, it is by a housing 40, one coiled structure 50 and a lid 60 form, this housing 40 is provided with an accommodation space 41 that opens at an end, and in can being arranged at for this coiled structure 50, and this coiled structure 50 is held Jie's electrolytic paper 53 under the arm by the anode foils 51 of no optical aluminum foil and subtend Cathode Foil 52 and is given superimposed in the centre and this is batched becoming the cylinder shape to make, in addition, this lid 60 is covered on the opening of accommodation space 41, and lid 60 is provided with two pins 61, stretching to contact anode foils 51 and Cathode Foil 52 respectively, and can be connected with the contact of electronic circuit, effect such as discharge and recharge to provide by this two pin 61.

Yet, the anode foils 51 of above-mentioned known capacitor and the width of Cathode Foil 52 all are narrow than the width of electrolytic paper 53, therefore have a little space between this anode foils 51 and Cathode Foil 52 and accommodation space 41 bottoms (the differing from the end that lid 60 is set), more or less can more residual air therein, and must put forward to specify herein be, the generation of burning must possess simultaneously the thing of being fired is arranged, air and flare, and this known capacitor element 1 is when producing spark when short circuit, may be because of the help of residual air, and make this capacitor element 1 burning damage, especially bad, the possibility that more likely therefore having explodes catches fire (blast and catch fire on for example nearest news by the normal TV of reporting ...), so this known capacitor should be improved in fact.

Summary of the invention

The present invention still has the shortcoming of fail safe deficiency to exist, so redesigned because aforementioned conventional uses capacitor element on reality is used.

Main purpose of the present invention provides a kind of fire-resistant capacitor; it can effectively reduce the possibility of burning; even if other electronic component is on fire; fire-resistant capacitor of the present invention is also unlikely to fire; and then the fail safe that can strengthen using, and the protection facts of using the electrical equipment of this capacitor to be difficult for blasting and to catch fire further.

In order to reach aforesaid goal of the invention, the technological means that the present invention used is to provide a kind of fire-resistant capacitor, and wherein this capacitor is made up of a housing, a coiled structure and a lid; This housing has an accommodation space for the coiled structure setting, and this accommodation space can cover by this closed with covers, and this coiled structure is formed by anode foils, electrolytic paper and Cathode Foil folded mutually curling under unlikely short-circuit conditions, and wherein this Cathode Foil differs from an end of accommodation space opening, and touch the bottom face that is butted on accommodation space, this air capacity that makes this coiled structure to store greatly reduces.

The present invention utilizes above-mentioned technological means, and has the minimizing oxidizer after implementing, and then reduces the advantage of capacitor burning possibility of fire.

Description of drawings

Fig. 1: be structural representation of the present invention;

Fig. 2: be part cutaway view of the present invention;

Fig. 3: be the local enlarged diagram of Fig. 2;

Fig. 4: be the structural representation of another preferred embodiment of the present invention;

Fig. 5: be the local cut-away enlarged view of Fig. 4;

Fig. 6: be the structural representation of known capacitor.

Symbol description among the figure:

Label of the present invention:

10 housings, 11 accommodation spaces, 20 coiled structure

21 electrolytic papers, 22 Cathode Foil, 23 anode foils

30 lids, 31 pins

W1 width (electrolytic paper)

W2 width (Cathode Foil)

W3 width (anode foils)

The label of prior art:

40 housings, 41 accommodation spaces, 50 coiled structure

51 anode foils, 52 Cathode Foil, 53 electrolytic papers

60 lids, 61 pins

Embodiment

Consult Fig. 1, be structural representation of the present invention.With reference to this figure, this capacitor includes: a housing 10, a coiled structure 20 and a lid 30, wherein;

This housing 10 has one first end and one second end, and is provided with an accommodation space 11 in it, and this accommodation space 11 opens at first end of housing 10;

This coiled structure 20 is from outside to inside according to electrolytic paper 21, Cathode Foil 22, electrolytic paper 21, the order of anode foils 23 stacks together, and curled again and formed, and wherein this electrolytic paper 21 has one first end and one second end, apart width W 1 approximates the degree of depth of accommodation space 11 between this two end, and this anode foils 23 also has one first end and one second end, apart 3 width W 1 of width W between this two end less than electrolytic paper 21, and this Cathode Foil 22 also has one first end and one second end, apart width W 2 is less than the width W 1 of electrolytic paper 21 between this two end, only should be noted that herein, these Cathode Foil 22 first ends and anode foils 23 first ends are corresponding on the same datum line time, the width W 2 of this Cathode Foil 22 is greater than the width W 3 of anode foils 23, and second end of this Cathode Foil 22 and electrolytic paper 21 second ends are for trimming;

This lid 30 is covered on the opening of accommodation space 11, and this lid 30 is provided with two pins 31, and this two pin 31 is inserted into an end of accommodation space 11, and contact is bonded to anode foils 23 and Cathode Foil 22 respectively;

By above-mentioned formation, coiled structure 20 can be dipped in the electrolyte of inorganic acid, and installing is gone in the accommodation space 11 of housing 10 again, and seal this accommodation space 11 when lid 30 covers, and when this two pin 31 was bonded to anode foils 23 and Cathode Foil 22 respectively, this capacitor was promptly assembled and is finished.

Consult Fig. 2, be of the present invention cutaway view, Fig. 3 is the local enlarged diagram of Fig. 2.With reference to this two figure; when coiled structure 20 is placed in the accommodation space 11 of housing 10; this electrolytic paper 21 and Cathode Foil 22 all will be butted on the bottom face of accommodation space 11; therefore make almost do not have any space between this Cathode Foil 22 and accommodation space 11 bottom faces; and can't stored air; thus; by this design improvement; even if capacitor produces spark because of the electric current that bears overload; only under the situation of oxidizer (air) deficiency; the chance of this capacitor burning also can minimize, thereby the user can be provided safer protection, further guarantee other parts not the reason capacitor get angry and damaged.

Consult Fig. 4, be the structural representation of another preferred embodiment of the present invention, Fig. 5 is Fig. 4 broken section enlarged drawing.With reference to this two figure, not existing together of present embodiment and previous embodiment mainly is the change of this coiled structure 20, wherein:

This coiled structure is from outside to inside according to electrolytic paper 21, Cathode Foil 22, electrolytic paper 21, electrolytic paper 21, the order of anode foils 23 stacks together, and curled again and formed, and wherein between these electrolytic paper 21 2 ends apart width W 1 less than the degree of depth of accommodation space 11, apart width W 3 is then less than the width W 1 of electrolytic paper 21 between these anode foils 23 2 ends, apart width W 2 is then greater than the width W 1 of electrolytic paper 21 between these Cathode Foil 22 2 ends, and when Cathode Foil 22 first ends and anode foils 23 first ends corresponding to same datum line on the time, second end of this Cathode Foil 22 touches the bottom face that is butted on housing 10 accommodation spaces 11;

By this, the effect that present embodiment can be reached, also identical with previous embodiment, it has been by having reduced the space of stored air, and then required oxidizer reduces to minimum when making burning, and can avoid the possibility of fire of burning effectively.

The present invention has seen through the detailed diagram of most preferred embodiment and has been described.Haveing the knack of the person skilled in art can derive many variations and needn't deviate from category of the present invention from most preferred embodiment.Therefore, the unlikely restriction of above-mentioned most preferred embodiment category of the present invention.Category of the present invention is defined in the claim of this case.

Claims

1. a fire-resistant capacitor is characterized in that, includes:

One housing has one first end and one second end, and has an accommodation space in it, this housing in first end be provided with two pins with the accommodation space that stretches through in;

One coiled structure, form by anode foils, electrolytic paper, Cathode Foil stacked curling under the situation that is not short-circuited, this anode foils and Cathode Foil all have one first end and one second end, this first end contacts combination with above-mentioned two pins, and Cathode Foil second end then more extends than anode foils second end and approaches the end face that accommodation space differs from pin.

2. fire-resistant capacitor as claimed in claim 1, wherein this accommodation space opens at first end of housing, and this capacitor can be by a lid to cover this opening of sealing.

3. fire-resistant capacitor as claimed in claim 2, wherein this two pin all is located on this lid, and when lid is covered on housing, in the accommodation space that must stretch through.

4. fire-resistant capacitor as claimed in claim 1, wherein this coiled structure stacks together according to the order of electrolytic paper, Cathode Foil, electrolytic paper, anode foils.

5. fire-resistant capacitor as claimed in claim 4, wherein this electrolytic paper has one first end and one second end, apart width approximates the degree of depth of accommodation space between this two end, apart width is then less than the width of electrolytic paper between these anode foils two ends, and between these Cathode Foil two ends apart width also less than the width of electrolytic paper, but the width of Cathode Foil is greater than the width of anode foils, and second end of Cathode Foil and electrolytic paper second end be for trimming, and touch simultaneously to the end face that differs from the pin end to accommodation space.

6. fire-resistant capacitor as claimed in claim 4, wherein this electrolytic paper has one first end and one second end, apart width is approximately less than the degree of depth of accommodation space between this two end, apart width is then less than the width of electrolytic paper between these anode foils two ends, and between these Cathode Foil two ends apart width greater than the width of electrolytic paper.

7. fire-resistant capacitor as claimed in claim 6, wherein when Cathode Foil first end and anode foils first end corresponding to same datum line on the time, second end of this Cathode Foil touches and is butted on the end face that the housing accommodation space differs from pin.

8. fire-resistant capacitor as claimed in claim 4, wherein this coiled structure is provided with two layers of electrolytic paper between Cathode Foil and anode foils.