CN102074382B - Solid-state electrolytic capacitor with multiple lead-out pins - Google Patents
Solid-state electrolytic capacitor with multiple lead-out pins Download PDFInfo
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- CN102074382B CN102074382B CN200910223796.6A CN200910223796A CN102074382B CN 102074382 B CN102074382 B CN 102074382B CN 200910223796 A CN200910223796 A CN 200910223796A CN 102074382 B CN102074382 B CN 102074382B
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Abstract
The invention discloses a solid-state electrolytic capacitor with multiple lead-out pins, which comprises a plurality of capacitor units, a substrate unit and a packaging unit, wherein the cathode of each capacitor unit has a lead-out cathode pin, the anode of each capacitor unit has a lead-out anode pin; the plurality of scattered anode pins are combined with centralized cathode pins, or the plurality of scattered cathode pins are combined centralized anode pins; the substrate unit comprises an anode lead-out conductive substrate electrically connected with the anode pins and a cathode lead-out conductive substrate electrically connected with the cathode pins; and the packaging unit covers the capacitor units and part of the substrate unit. By using multi-end unidirectional lead-out and single-pole, single-side and multi-area welding, the welding difficulty is lowered, and the equivalent series resistance of capacitors with the same capacity is reduced considerably.
Description
Technical field
The present invention relates to a kind of solid electrolytic capacitor, espespecially a kind of stack-type solid electrolytic capacitor with multiple lead-out pins.
Background technology
Capacitor be used in widely consumer electrical home appliances, computer main frame panel and periphery thereof, power supply unit, communication product and automobile etc. basic module, its main effect comprises: filtering, bypass, rectification, coupling, decoupling, phase inversion etc. are one of indispensable assemblies in electronic product.Capacitor, according to different materials and purposes, has different kenels, comprises aluminium matter electrochemical capacitor, tantalum matter electrochemical capacitor, laminated ceramic electric capacity, thin-film capacitor etc.
In prior art, for the aluminium foil of aluminium electrolytic capacitor, conventionally divide into positive paper tinsel and negative paper tinsel, the step that must change into through burn into just can be for electrochemical capacitor.Corrosion refers to and highly purified aluminium is utilized in galvanic corrosion liquid to a series of processing procedures such as galvanic corrosion, pickling, dechlorination, washing, to increase the surface area of aluminium foil, just carried widely high specific capacitance.Than the raising of electric capacity, it is the important technology that electrochemical capacitor is realized miniaturization.Aluminium foil (positive paper tinsel) processing through changing into again after excessive erosion, to form aluminium oxide on aluminium foil, as the dielectric of electrochemical capacitor.The withstand voltage linear relationship that is generally a direct ratio of dielectric thickness and aluminium foil, this is also the Main Basis of electrochemical capacitor operating voltage.As for negative paper tinsel, conventionally in its surface, form the proof voltage layer of one 1 ~ 3V, also have and do not make the negative paper tinsel that changes into processing, if but the etched foil that does not do pressure-resistant treatments is placed in to air, also can self-assembling formation aluminium oxide.The aluminium foil changing into through burn into, cuts into certain width according to the specification of design, then by guide pin nail joint on aluminium foil, then separate through nail joint, coiling processing procedure and form a cylindrical structure with electrolytic paper, it is called fuse or sub-prime.Now, fuse does not have the electrical characteristic of electrochemical capacitor, must via by electrolyte complete wetting in fuse, by the water absorbing capacity of electrolytic paper by electrolyte absorption wherein and infiltrate through in the corrosion structure of aluminium foil.The fuse of this complete wetting is packed in bottom and had in the column shape container of Explosion-proof Design, in the seal of the openend device rubber of column shape container, by machinery sealing and envelope waist, form an airtight column structure, then via sleeve pipe, aging etc. being made of charging.
In fact, at the negative pole of electrolytic capacitor, be to form an electronic loop by the movement of electrolyte intermediate ion, therefore the conductivity of electrolyte just directly affects the electrical characteristic of electrolytic capacitor.Therefore how improving the conductivity of electrolyte, so that electrolytic capacitor still can keep the chemical stability, particularly electrolyte of electrolyte and aluminium foil, electrolytic paper and the stability of aluminium foil in high temperature, is the trend of electrolyte development.The electrolyte that the aluminium electrolytic capacitor of mentioning in general document uses, is particularly used in below operating voltage 100V, is mainly to be formed according to different proportion allotment by water, organic solvent, organic acid, inorganic acid and some special additives.
Moreover solid electrolytic capacitor has the advantages such as small size, high capacitance, frequency characteristic be superior, and the decoupling zero cooperation that can be used in the power circuit of central processing unit is used.Generally speaking, can utilize the storehouse of multiple capacitor cells, and the solid electrolytic capacitor of formation high-capacitance, known stack-type solid electrolytic capacitor comprises multiple capacitor cells and lead frame, wherein each capacitor cell comprises anode portion, negative pole part and insulation division, and this insulation division is electrically insulated anode portion and negative pole part each other.Particularly, the negative pole part of capacitor cell storehouse each other, and by between adjacent capacitor cell, conductor layer being set, so that be electrically connected to each other between multiple capacitor cell.
In addition, convoluted solid electrolytic capacitor includes: capacitor assembly, accommodate member and closure member.This capacitor assembly is wound with the anode foils and the Cathode Foil that is connected cathode terminal of jointed anode terminal across separator, and forms dielectric substrate between anode foils and Cathode Foil; This is accommodated member and has peristome and can accommodate capacitor assembly; This closure member has the through hole that can supply anode terminal and cathode terminal to run through, and salable peristome of accommodating member.And, between aforementioned closure member and aforementioned capacitor assembly, have predetermined space, and in anode terminal and cathode terminal, at least any one is provided with to guarantee the barrier structure in gap.
But, the space that inventor's thoughts known technology is still improved, and according to being engaged in for many years correlation experience in this respect, concentrated observation and research, and coordinate knowwhy, thus propose a kind of reasonable in design and effectively improve the technical scheme of known technology defect.
Summary of the invention
Technical problem to be solved by this invention, is to provide a kind of stack-type solid electrolytic capacitor with multiple lead-out pins, and its main purpose is:
1, can reach large area, large capacity, the low back of the body, there is cheaply the stack-type solid electrolytic capacitor of multiple lead-out pins.
2, can significantly lower leakage current and short circuit problem.
3, can reduce welding degree of difficulty, and significantly reduce the equivalent series resistance of same capability capacitor.
In order to achieve the above object, the invention provides following technical scheme:
There is a stack-type solid electrolytic capacitor for multiple lead-out pins, comprise a plurality of capacitor cells, a base board unit and an encapsulation unit;
Described in each, the negative pole of capacitor cell has a negative pole pin of outwards drawing, each capacitor cell just have an anodal pin of outwards drawing; The anodal pin that the negative pole pin that the anodal pin of multiple dispersions is arranged in pairs or groups concentrated or the collocation of the negative pole pin of multiple dispersions are concentrated;
Described base board unit comprises that a positive pole that is electrically connected at described anodal pin draws the negative pole that electrically-conductive backing plate and is electrically connected at described negative pole pin and draw electrically-conductive backing plate;
A part for capacitor cell and base board unit described in described package unit covers.
Further be improved to, described in each, capacitor cell is sequentially formed by a carbon paste, a conducting polymer, a valve metal paillon foil, a conducting polymer and a carbon paste storehouse, wherein between every two capacitor cells, is coated with elargol or silver paste; Described positive pole is be electrically connected and be electrically connected at respectively described anodal pin by a plurality of pads; Described carbon paste is by described elargol or silver paste is electrically connected and be electrically connected at respectively described negative pole pin, and described positive pole and described carbon paste insulated from each other.
Moreover capacitor cell is sequentially formed by a carbon paste, a conducting polymer, a valve metal paillon foil, a conducting polymer and a carbon paste storehouse described in each, wherein between every two capacitor cells, by carbon paste and electrically storehouse is together; Described positive pole is be electrically connected and be electrically connected at respectively described anodal pin by a plurality of pads; Described carbon paste is be electrically connected and be electrically connected at respectively described negative pole pin by a conductive layer, and described positive pole and described carbon paste are insulated from each other.
Described in each, the edge of valve metal paillon foil negative pole end optionally installs colloid additional.
The described stack-type solid electrolytic capacitor with multiple lead-out pins also comprises: on a plurality of part outer surfaces that are arranged at respectively described valve metal paper tinsel and surround into the insulating barrier of a circle.
Described anodal pin is distinguished into the anodal pin units of plural groups, and described anodal pin units is separated from each other, and the anodal pin of described anodal pin units storehouse is together electrically; Moreover described negative pole pin forms one group of negative pole pin units, and the negative pole pin of described negative pole pin units storehouse is together electrically; Described anodal pin is outwards drawn from same direction or the different directions of described positive pole respectively, and described negative pole pin is outwards drawn from the same direction of described negative pole.
Described negative pole pin is distinguished into plural groups negative pole pin units, and described negative pole pin units is separated from each other, and the negative pole pin of described negative pole pin units storehouse is together electrically; Moreover described anodal pin forms one group of anodal pin units, and the anodal pin of described anodal pin units storehouse is together electrically; Described negative pole pin is outwards drawn from same direction or the different directions of described negative pole respectively, and described anodal pin is outwards drawn from the same direction of described positive pole.
The described stack-type solid electrolytic capacitor with multiple lead-out pins also comprises: a plurality of assistance storehouse conducting blocks, it is arranged at electrically respectively between the positive pole of every two capacitor cells and stretches out, and wherein said assistance storehouse conducting block is electrically connected at described positive pole by a plurality of pads and draws electrically-conductive backing plate.
The advantage of the stack-type solid electrolytic capacitor with multiple lead-out pins of the present invention is: utilize the equidirectional derivation of multiterminal, and use homopolarity with the welding of limit multi-region, can reduce welding degree of difficulty, and significantly reduce the equivalent series resistance of same capability capacitor.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is the schematic side view of the embodiment 1 of a kind of stack-type solid electrolytic capacitor with multiple lead-out pins of the present invention;
Fig. 1 a is the schematic top plan view that the edge of the positive paper tinsel negative pole end of the embodiment of the present invention 1 installs colloid additional;
Fig. 1 b is the generalized section of the 1B-1B line of Fig. 1 a of the present invention;
Fig. 2 is the schematic side view of the embodiment 2 of a kind of stack-type solid electrolytic capacitor with multiple lead-out pins of the present invention;
Fig. 3 is the schematic diagram of the first pin fit system of a kind of stack-type solid electrolytic capacitor with multiple lead-out pins of the present invention;
Fig. 4 is the schematic diagram of the second pin fit system of the present invention's stack-type solid electrolytic capacitor with multiple lead-out pins;
Fig. 5 is the schematic diagram of the third pin fit system of a kind of stack-type solid electrolytic capacitor with multiple lead-out pins of the present invention;
Fig. 6 is the schematic diagram of the 4th kind of pin fit system of a kind of stack-type solid electrolytic capacitor with multiple lead-out pins of the present invention;
Fig. 7 is the schematic side view of the embodiment 3 of a kind of stack-type solid electrolytic capacitor with multiple lead-out pins of the present invention;
Fig. 8 is the schematic side view of the embodiment 4 of a kind of stack-type solid electrolytic capacitor with multiple lead-out pins of the present invention;
In embodiment 1, the mark of Fig. 1, Fig. 1 a, Fig. 1 b is illustrated as:
Capacitor cell 1a, carbon paste 10a, conducting polymer 11a, valve metal paillon foil 12a, colloid 120a, base board unit 2a, positive pole is drawn electrically-conductive backing plate 21a, and negative pole is drawn electrically-conductive backing plate 22a, encapsulation unit 3a, insulating barrier 4a, conductive layer 5a, conductive layer Sa, pad Pa;
In embodiment 2, the mark of Fig. 2 is illustrated as:
Capacitor cell 1b, carbon paste 10b, conducting polymer 11b, valve metal paillon foil 12b, base board unit 2b, positive pole is drawn electrically-conductive backing plate 21b, and negative pole is drawn electrically-conductive backing plate 22b, encapsulation unit 3b, insulating barrier 4b, conductive layer 5b, pad Pb;
In embodiment 3, the mark of Fig. 7 is illustrated as:
Assist storehouse conducting block 6f, anodal 12f, positive pole is drawn electrically-conductive backing plate 21f, pad Pf;
In embodiment 4, the mark of Fig. 8 is illustrated as:
Assist storehouse conducting block 6g, anodal 12g, positive pole is drawn electrically-conductive backing plate 21g, pad Pg.
The mark that pin is derived Fig. 3-Fig. 6 in embodiment is illustrated as:
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
Embodiment 1:
As shown in Figure 1, a kind of stack-type solid electrolytic capacitor (chip capacity) with multiple lead-out pins, it comprises: a plurality of capacitor cell 1a, a base board unit 2a and an encapsulation unit 3a, and between every two capacitor cell 1a, be coated with conductive layer Sa, for example: elargol or silver paste.
Wherein, each capacitor cell 1a is sequentially formed by a carbon paste 10a (negative pole), a conducting polymer 11a, a valve metal paillon foil 12a (positive pole), a conducting polymer 11a and carbon paste 10a (negative pole) storehouse, all there is oxide skin(coating) (not indicating in figure) on the surface of each valve metal paillon foil 12a, to produce insulation effect as dielectric layer, wherein above-mentioned two conducting polymer 11a are formed on the surface of this valve metal paillon foil 12a.
In addition, the stack-type solid electrolytic capacitor with multiple lead-out pins also comprises: plural conductive layer 5a, it is electrically connected at respectively between the described carbon paste 10a of each capacitor cell 1a.
Moreover the positive terminal of described valve metal paillon foil 12a is electrically connected by a plurality of pad Pa, described carbon paste 10a is electrically connected by described conductive layer 5a, and described valve metal paillon foil 12a and described carbon paste 10a are insulated from each other.
In addition, a kind of stack-type solid electrolytic capacitor with multiple lead-out pins also comprises: on a plurality of part outer surfaces that are arranged at respectively described valve metal paillon foil 12a and surround into a circle insulating barrier 4a (that is each insulating barrier 4a be with around mode be formed in upper and lower surface and two limits, opposition side of the part outer surface of each corresponding valve metal paillon foil 12a), to limit the length of described carbon paste 10a and described conducting polymer 11a, and as the positive pole of each capacitor cell 1a and the insulated wire of negative pole.
In addition, this base board unit 2a has a positive pole that is electrically connected at described valve metal paillon foil 12a and draws the negative pole that electrically-conductive backing plate 21a and is electrically connected at described carbon paste 10a and draw electrically-conductive backing plate 22a.
In addition, a part of the coated described capacitor cell 1a of this encapsulation unit 3a and base board unit 2a.
In addition, positive paper tinsel 12a optionally installs colloid 120a (as shown in Fig. 1 a and Fig. 1 b) additional near the edge of negative pole one side, significantly to lower leakage current and short circuit problem.Certainly, the edge of valve metal paillon foil negative pole end in other embodiments of the invention all optionally installs colloid additional.
Embodiment 2:
As shown in Figure 2, a kind of stack-type solid electrolytic capacitor (chip capacity) with multiple lead-out pins, it comprises: a plurality of capacitor cell 1b, a base board unit 2b and an encapsulation unit 3b.Wherein, each capacitor cell 1b is sequentially formed by a carbon paste 10b (negative pole), a conducting polymer 11b, a valve metal paillon foil 12b (positive pole), a conducting polymer 11b and carbon paste 10b (negative pole) storehouse, all there is oxide skin(coating) (not indicating in figure) on the surface of each valve metal paillon foil 12b, to produce insulation effect as dielectric layer, wherein above-mentioned two conducting polymer 11b are formed on the surface of this valve metal paillon foil 12b, and between every two capacitor cell 1b, by carbon paste 10b and electrically storehouse is together.
In addition, a kind of stack-type solid electrolytic capacitor with multiple lead-out pins also comprises: plural conductive layer 5b, it is electrically connected at respectively between the described carbon paste 10b of each capacitor cell 1b.
Moreover the positive terminal of described valve metal paillon foil 12b is electrically connected by a plurality of pad Pb, described carbon paste 10b is electrically connected by described conductive layer 5b, and described valve metal paillon foil 12b and described carbon paste 10b insulated from each other.
In addition, a kind of stack-type solid electrolytic capacitor with multiple lead-out pins also comprises: on a plurality of part outer surfaces that are arranged at respectively described valve metal paillon foil 12b and surround into a circle insulating barrier 4b (that is each insulating barrier 4b be with around mode be formed in upper and lower surface and two limits, opposition side of the part outer surface of each corresponding valve metal paillon foil 12b), to limit the length of described carbon paste 10b and described conducting polymer 11b, and as the positive pole of each capacitor cell 1b and the insulated wire of negative pole.
In addition, this base board unit 2b has a positive pole that is electrically connected at described valve metal paillon foil 12b and draws the negative pole that electrically-conductive backing plate 21b and is electrically connected at described carbon paste 10b and draw electrically-conductive backing plate 22b.
In addition, a part of the coated described capacitor cell 1b of this encapsulation unit 3b and this base board unit 2b.
Above-mentioned two kinds of embodiment can adopt following execution mode:
As shown in Figures 3 and 4, the positive pole 12 of each capacitor cell 1 has an anodal pin 120 of outwards drawing, and described anodal pin 120 be distinguished into plural groups respectively electrically anodal pin units 120 together of storehouse ' (Fig. 3 disclose two groups of anodal pin units 120 '; Fig. 4 disclose three groups of anodal pin units 120 '), wherein said anodal pin 120 is from described anodal 12 same direction, outwards to draw respectively.If Fig. 3 shows, want 8 layers, storehouse, but only need carry out 4 layers of welding, if 12 layers, storehouse is wanted in Fig. 4 demonstration in addition, but only need carry out 4 layers of welding.
In addition, the negative pole (not shown) of each capacitor cell 1 has a negative pole pin (not shown) of outwards drawing, and described negative pole pin forms one group of negative pole pin units, with make described negative pole pin electrically storehouse together, and described negative pole pin is outwards drawn (that is the described negative pole pin of described negative pole all mutually storehouse together) from the equidirectional of described negative pole respectively.
Certainly, described negative pole also can be directly electrically storehouse together, and described negative pole pin (not shown) also can outwards be drawn from the equidirectional of described negative pole (not shown) respectively, to form a positive pole, draw with multi-cathode same side and draw.For example: each capacitor cell just have an anodal pin of outwards drawing, and described anodal pin forms one group of anodal pin units, to make described anodal pin, storehouse is together electrically, moreover the negative pole of each capacitor cell has a negative pole pin of outwards drawing, and described negative pole pin is distinguished into plural groups negative pole pin units, storehouse is together electrically for the described negative pole pin of each group negative pole pin units, described anodal pin is outwards drawn from the equidirectional of described positive pole respectively in addition, and described negative pole pin is outwards drawn from the equidirectional of described negative pole respectively.
As shown in Figures 5 and 6, the positive pole 12 of each capacitor cell 1 has an anodal pin 120 of outwards drawing, and described anodal pin 120 be distinguished into plural groups respectively electrically anodal pin units 120 together of storehouse ' (Fig. 3 disclose two groups of anodal pin units 120 '; Fig. 4 appear four groups of anodal pin units 120 '), wherein said anodal pin 120 is optionally outwards drawn from described anodal 12 different directions respectively.
In addition, the negative pole (not shown) of each capacitor cell 1 has a negative pole pin (not shown) of outwards drawing, and described negative pole pin forms one group of negative pole pin units, with make described negative pole pin electrically storehouse together, and described negative pole pin is outwards drawn (that is the described negative pole pin of described negative pole all mutually storehouse together) from the equidirectional of described negative pole respectively.
Certainly, described negative pole also can be directly electrically storehouse together, and described negative pole pin (not shown) also can outwards be drawn from the different directions of described negative pole (not shown) respectively, to form a positive pole, draw ends different from multi-cathode and draw.For example: each capacitor cell just have an anodal pin of outwards drawing, and described anodal pin forms one group of anodal pin units, to make described anodal pin, storehouse is together electrically, moreover the negative pole of each capacitor cell has a negative pole pin of outwards drawing, and described negative pole pin is distinguished into plural groups negative pole pin units, storehouse is together electrically for the described negative pole pin of each group negative pole pin units, described anodal pin is outwards drawn from the equidirectional of described positive pole respectively in addition, and described negative pole pin is outwards drawn from the different directions of described negative pole respectively.
Therefore, the present invention can use the anodal pin (shown in Fig. 3-Fig. 6) of multiple dispersions to coordinate concentrated negative pole pin or coordinate the anodal pin of concentrating to weld with the negative pole pin of multiple dispersions.
Therefore, the present invention can, along with user's demand, to select any embodiment in above-described embodiment 1, embodiment 2, and then coordinate the mode of above-mentioned any multiterminal pin, completes the present invention and have the stack-type solid electrolytic capacitor of multiple lead-out pins.
Embodiment 3:
As shown in Figure 7, a kind of stack-type solid electrolytic capacitor with multiple lead-out pins also comprises: a plurality of assistance storehouse conducting block 6f, it is arranged at electrically respectively between the anodal 12f of every two capacitor cell 1f and stretches out, and wherein said assistance storehouse conducting block 6f is electrically connected at this positive pole by a plurality of pad Pf and draws electrically-conductive backing plate 21f.For example: described anodal 12f sees through described pad Pf, is electrically connected at this positive pole draws electrically-conductive backing plate 21f in the mode (mode as shown in Figures 1 and 2) of connecting.
Embodiment 4:
As shown in Figure 8, a kind of stack-type solid electrolytic capacitor with multiple lead-out pins also comprises: a plurality of assistance storehouse conducting block 6g, it is arranged at electrically respectively between the anodal 12g of every two capacitor cell 1g and stretches out, and wherein said assistance storehouse conducting block 6g is electrically connected at this positive pole by a plurality of pad Pg and draws electrically-conductive backing plate 21g.(mode as shown in Fig. 3-Fig. 6) is electrically connected at this positive pole and draws electrically-conductive backing plate 21g for example: described anodal 12g sees through described pad Pg, and in parallel.
Claims (4)
1. there is a stack-type solid electrolytic capacitor for multiple lead-out pins, described in there is multiple lead-out pins stack-type solid electrolytic capacitor comprise a plurality of capacitor cells, a base board unit and an encapsulation unit;
Described in each, the negative pole of capacitor cell has a negative pole pin of outwards drawing, each capacitor cell just have an anodal pin of outwards drawing; The anodal pin that the negative pole pin that the anodal pin of multiple dispersions is arranged in pairs or groups concentrated or the collocation of the negative pole pin of multiple dispersions are concentrated;
Described base board unit comprises that a positive pole that is electrically connected at described anodal pin draws the negative pole that electrically-conductive backing plate and is electrically connected at described negative pole pin and draw electrically-conductive backing plate;
A part for capacitor cell and base board unit described in described package unit covers;
Described in each, capacitor cell is sequentially formed by a carbon paste, a conducting polymer, a valve metal paillon foil, a conducting polymer and a carbon paste storehouse, wherein between every two capacitor cells, is coated with elargol or silver paste; Described positive pole is be electrically connected and be electrically connected at respectively described anodal pin by a plurality of pads; Described carbon paste is by described elargol or silver paste is electrically connected and be electrically connected at respectively described negative pole pin, and described positive pole and described carbon paste insulated from each other;
Described anodal pin is distinguished into the anodal pin units of plural groups, and described anodal pin units is separated from each other, and the anodal pin of described anodal pin units storehouse is together electrically; Moreover described negative pole pin forms one group of negative pole pin units, and the negative pole pin of described negative pole pin units storehouse is together electrically; Described anodal pin is outwards drawn from same direction or the different directions of described positive pole respectively, and described negative pole pin is outwards drawn from the same direction of described negative pole.
2. the stack-type solid electrolytic capacitor with multiple lead-out pins according to claim 1, is characterized in that: described in each, the edge of valve metal paillon foil negative pole end installs colloid additional.
3. the stack-type solid electrolytic capacitor with multiple lead-out pins according to claim 1, it is characterized in that: described in there is multiple lead-out pins stack-type solid electrolytic capacitor also comprise: on a plurality of part outer surfaces that are arranged at respectively described valve metal paper tinsel and surround into the insulating barrier of a circle, that is each insulating barrier be with around mode be formed in upper and lower surface and two limits, opposition side of the part outer surface of each corresponding valve metal paillon foil.
4. the stack-type solid electrolytic capacitor with multiple lead-out pins according to claim 1, it is characterized in that: described in there is multiple lead-out pins stack-type solid electrolytic capacitor also comprise: a plurality of assistance storehouse conducting blocks, it is arranged at electrically respectively between the positive pole of every two capacitor cells and stretches out, and wherein said assistance storehouse conducting block is electrically connected at described positive pole by a plurality of pads and draws electrically-conductive backing plate.
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| CN200910223796.6A CN102074382B (en) | 2009-11-19 | 2009-11-19 | Solid-state electrolytic capacitor with multiple lead-out pins |
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