CN102024567A - Stack type solid electrolytic capacitor with multi-end product lead-out pin - Google Patents
Stack type solid electrolytic capacitor with multi-end product lead-out pin Download PDFInfo
- Publication number
- CN102024567A CN102024567A CN2010105770616A CN201010577061A CN102024567A CN 102024567 A CN102024567 A CN 102024567A CN 2010105770616 A CN2010105770616 A CN 2010105770616A CN 201010577061 A CN201010577061 A CN 201010577061A CN 102024567 A CN102024567 A CN 102024567A
- Authority
- CN
- China
- Prior art keywords
- electrically
- negative pole
- capacitor
- backing plate
- conductive backing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a stack type solid electrolytic capacitor with a multi-end product lead-out pin. The capacitor comprises a plurality of capacitor units, a substrate unit and a package unit, wherein the capacitor units are stacked together; the positive pole end of each capacitor unit is provided with a positive pole pin which is led outwards; positive pole pins of the capacitor units are electrically stacked together; negative pole ends of the capacitor units are electrically stacked together; and the substrate unit is provided with at least one positive pole lead-out conductive substrate which is electrically connected with the positive pole pins of the capacitor units and a plurality of negative pole lead-out conductive substrates which are electrically connected with the negative pole ends of the capacitor units. The stack type solid electrolytic capacitor has the advantages that: a plurality of positive pole pins and a plurality of negative pole pins are matched with the plurality of positive pole lead-out conductive substrates and the plurality of negative pole lead-out conductive substrates respectively, so the welding difficulty is reduced, and equivalent series resistance and equivalent series inductance of the capacitors with the same capacity are greatly reduced.
Description
Technical field
The present invention relates to a kind of stack solid electrolytic capacitor, specifically a kind of stack solid electrolytic capacitor with multiterminal product leading foot.
Background technology
Capacitor has been widely used in the basic module of consumer electrical home appliances, computer main frame panel and periphery thereof, power supply unit, communication product and automobile etc., it mainly acts on and comprising: filtering, bypass, rectification, coupling, decoupling, phase inversion etc. are one of indispensable assemblies in the electronic product.Capacitor has different kenels according to different materials and purposes.Comprise aluminium matter electrochemical capacitor, tantalum matter electrochemical capacitor, laminated ceramic electric capacity, thin-film capacitor etc.
In the prior art, the aluminium foil that is used for aluminium electrolytic capacitor is divided into positive paper tinsel and negative paper tinsel usually, must just can be used for electrochemical capacitor through the step that burn into changes into.Corrosion is meant and places galvanic corrosion liquid to utilize a series of technologies such as galvanic corrosion, pickling, dechlorination, washing in highly purified aluminium, increases the surface area of aluminium foil, compares electric capacity thereby improve greatly.Raising than electric capacity is the important technology that electrochemical capacitor is realized miniaturization.Aluminium foil after excessive erosion (positive paper tinsel) processing through changing into again forms aluminium oxide, as the dielectric of electrochemical capacitor on aluminium foil.The withstand voltage linear relationship that is generally a direct ratio of dielectric thickness and aluminium foil, this also is the main foundation of electrochemical capacitor operating voltage.As for negative paper tinsel, form the proof voltage layer of one 1 ~ 3V usually in its surface, also have and do not make the negative paper tinsel that changes into processing, if but the etched foil that will not do pressure-resistant treatments places air, also can form aluminium oxide naturally.The aluminium foil that changes into through burn into cuts into certain width according to the specification of design, again with the guide pin nail joint on aluminium foil, separate through nail joint, the cylindrical structure of reeling and forming with electrolytic paper again, be called as fuse or sub-prime.At this moment, fuse does not have the electrical characteristic of electrochemical capacitor, must be via electrolyte be soaked into fuse fully, and the water absorbing capacity by electrolytic paper is with electrolyte absorption wherein and infiltrate through in the corrosion structure of aluminium foil.The fuse that soaks into the fully bottom of packing into is had in the column shape container of explosion-proof design, and the openend device rubber seal at column shape container seals and seals waist by machinery, forms an airtight column structure, is prepared from through processes such as sleeve pipe, charging are aging again.
In fact, be to form electronic loop at the negative pole end of electrolytic capacitor, so the conductivity of electrolyte (conductivity) just directly influence the electrical characteristic of electrolytic capacitor by moving of electrolyte intermediate ion.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 the general document uses especially uses below operating voltage 100V, is mainly formed according to the different proportion allotment by water, organic solvent, organic acid, inorganic acid and some special additives.
Moreover solid electrolytic capacitor has advantages such as small size, high capacitance, frequency characteristic be superior, thereby can use use in the de of the power circuit of central processing unit.Generally speaking, can utilize piling up of a plurality of capacitor cells, form the solid electrolytic capacitor of high-capacitance, known stack solid electrolytic capacitor comprises a plurality of capacitor cells and lead frame, wherein each capacitor cell comprises anode portion, negative pole part and insulation division, and insulation division can make anode portion and negative pole part be electrically insulated each other.Particularly, the negative pole part of capacitor cell piles up each other, and by between adjacent capacitor cell conductor layer being set, can make between a plurality of capacitor cells to be electrically connected to each other.
Convoluted solid electrolytic capacitor comprises: capacitor assembly, accommodate member and closure member.This capacitor assembly contains anode foils that connects anode terminal and the Cathode Foil that is connected cathode terminal for reeling across separator, and forms dielectric substrate between anode foils and Cathode Foil; This accommodates member is to have peristome and can accommodate capacitor assembly; This closure member is to have the through hole that can supply anode terminal and cathode terminal to run through, and salable peristome of accommodating member.In addition, have predetermined space between aforementioned closure member and the aforementioned capacitor assembly, and at least one is provided with the block member that is used for guaranteeing the gap in anode terminal and the cathode terminal.Yet prior art still has amendatory space, and according to the correlation experience of being engaged in for many years in this respect, concentratedly observes and studies it, and cooperate the utilization of scientific principle, and propose the present invention of a kind of disappearance of reasonable in design and effective improvement.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of stack solid electrolytic capacitor with multiterminal product leading foot is provided, its main purpose is:
1, provides large tracts of land, big capacity, the low back of the bodyization, stack solid electrolytic capacitor cheaply.
2, the degree of difficulty of multiple-level stack be can reduce, and the equivalent series resistance and the equivalent series inductance of same capability capacitor significantly reduced.
In order to solve the problems of the technologies described above, the invention provides a kind of stack solid electrolytic capacitor with multiterminal product leading foot.
Technical scheme of the present invention is: have the stack solid electrolytic capacitor of multiterminal product leading foot, comprising: a plurality of capacitor cells, a base board unit and an encapsulation unit.Wherein, these capacitor cells are stacked each other on together, and each capacitor cell has a positive terminal and a negative pole end, and the positive terminal of each capacitor cell has an anodal pin of outwards drawing, this positive pole pin is stacked each other electrically, and the negative pole end of these capacitor cells is stacked each other electrically.This base board unit has at least that a positive pole that is electrically connected at these anodal pins of these capacitor cells is drawn electrically-conductive backing plate and a plurality of negative pole that is electrically connected at these negative pole ends of these capacitor cells is drawn electrically-conductive backing plate.The part of these capacitor cells of package unit covers and these base board units is used to expose above-mentioned at least one positive pole and draws an end of electrically-conductive backing plate and the end that each negative pole is drawn electrically-conductive backing plate.
Simultaneously, provide a kind of stack solid electrolytic capacitor, having comprised: a plurality of capacitor cells, a base board unit and an encapsulation unit with multiterminal product leading foot.Wherein, these capacitor cells are for being stacked each other on together, and each capacitor cell has a positive terminal and a negative pole end, wherein the positive terminal of each capacitor cell has an anodal pin of outwards drawing, these anodal pins are divided into the anodal pin units of plural groups, these anodal pins of every group of anodal pin units are stacked each other electrically, and the negative pole end of these capacitor cells is stacked each other electrically.This base board unit has a plurality of separated from one another and positive pole that be electrically connected at these anodal pin units of these capacitor cells respectively draws electrically-conductive backing plate and at least one negative pole that is electrically connected at the negative pole end of these capacitor cells is drawn electrically-conductive backing plate.This encapsulation unit is drawn an end of electrically-conductive backing plate and the end that above-mentioned at least one negative pole is drawn electrically-conductive backing plate for coating the part of these capacitor cells and these base board units to be used to exposing each positive pole.
Beneficial effect of the present invention is: utilize a plurality of anodal pins (these anodal pins are outwards drawn from the same direction or the different directions of these positive terminals respectively) and the negative pole pin draws electrically-conductive backing plate with a plurality of positive poles respectively and negative pole is drawn cooperating of electrically-conductive backing plate, weld degree of difficulty to reduce, and significantly reduce the equivalent series resistance and the equivalent series inductance of same capability capacitor.
Description of drawings
Fig. 1-1 has the side-looking generalized section of capacitor cell of the stack solid electrolytic capacitor of multiterminal product leading foot for the embodiment of the invention 1;
Fig. 1-2 installs the schematic top plan view of colloid additional for the edge of the oxide insulating layer of the embodiment of the invention 1;
Fig. 1-3 is the generalized section along the 1C-1C line of Fig. 1-2;
Fig. 1-4 is the positive terminal of the stack solid electrolytic capacitor with multiterminal product leading foot of the embodiment of the invention 1 and the stack manner schematic diagram of negative pole end;
Fig. 1-5 has the side-looking generalized section of first kind of stack manner of the stack solid electrolytic capacitor of multiterminal product leading foot for the embodiment of the invention 1;
Fig. 1-6 has the side-looking generalized section of second kind of stack manner of the stack solid electrolytic capacitor of multiterminal product leading foot for the embodiment of the invention 1;
Fig. 2 embodiment of the invention 2 has the positive terminal of stack solid electrolytic capacitor of multiterminal product leading foot and the stack manner schematic diagram of negative pole end;
Fig. 3 embodiment of the invention 3 has the positive terminal of stack solid electrolytic capacitor of multiterminal product leading foot and the stack manner schematic diagram of negative pole end;
Fig. 4 embodiment of the invention 4 has the positive terminal of stack solid electrolytic capacitor of multiterminal product leading foot and the stack manner schematic diagram of negative pole end;
Fig. 5 embodiment of the invention 5 has the positive terminal of stack solid electrolytic capacitor of multiterminal product leading foot and the stack manner schematic diagram of negative pole end;
Fig. 6 embodiment of the invention 6 has the positive terminal of stack solid electrolytic capacitor of multiterminal product leading foot and the stack manner schematic diagram of negative pole end;
Fig. 7 embodiment of the invention 7 has the positive terminal of stack solid electrolytic capacitor of multiterminal product leading foot and the stack manner schematic diagram of negative pole end;
Fig. 8 embodiment of the invention 8 has the positive terminal of stack solid electrolytic capacitor of multiterminal product leading foot and the stack manner schematic diagram of negative pole end;
Among the figure:
1 capacitor cell, 14 insulating barriers, P positive terminal, N negative pole end, 100 anodal pins, 100 ' anodal pin units,
2 base board units, 21 positive poles are drawn electrically-conductive backing plate, 22 negative poles are drawn electrically-conductive backing plate, 3 encapsulation units.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
To shown in Fig. 1-5, the embodiment of the invention 1 provides a kind of stack solid electrolytic capacitor with multiterminal product leading foot, comprising as Fig. 1-1: a plurality of capacitor cells 1, a base board unit 2 and an encapsulation unit 3.
Wherein, as Fig. 1-1 to shown in Fig. 1-3, each capacitor cell 1 has a positive terminal P and a negative pole end N, and each capacitor cell 1 has electroconductive polymer layer 12, an and carbon paste 13 that coats this electroconductive polymer layer 12 that oxide insulating layer 11, that a valve metal paillon foil 10, coats this valve metal paillon foil 10 coats a side of this oxide insulating layer 11.In addition, have on the part outer surface of the oxide insulating layer 11 of each capacitor cell 1 upper and lower surface that an insulating barrier 14(who surrounds into a circle is each insulating barrier 14 part outer surface of being formed in each corresponding oxide insulating layer 11 in the mode that centers on and two opposite before and after sides), limiting the length of this carbon paste 13 and this electroconductive polymer layer 12, and as the insulated wire of each capacitor cell 1 positive terminal P and negative pole end N.Moreover the edge of each oxide insulating layer 11 optionally installs colloid C(additional shown in Fig. 1-2 and Fig. 1-3).
Moreover, shown in Fig. 1-4, (be divided into into three steps, first step is a three-dimensional exploded view, second step is to look constitutional diagram on half-finished, third step is the bottom view of finished product), these capacitor cells 1 are stacked each other on together, wherein the positive terminal P of each capacitor cell 1 has an anodal pin 100 of outwards drawing, the anodal pin 100 of these of these capacitor cells 1 be stacked electrically each other and form an anodal pin units 100 ', and the negative pole end N of these capacitor cells 1 is stacked each other electrically.In addition, this base board unit 2 have at least one be electrically connected at the anodal pin units 100 of the anodal pin 100(of these of these capacitor cells 1 ') positive pole draw electrically-conductive backing plate 21 and a plurality of negative pole that is electrically connected at these negative pole ends N of these capacitor cells 1 is drawn electrically-conductive backing plate 22, and these negative poles draw electrically-conductive backing plate 22 can combine and become the monolithic electrically-conductive backing plate (as embodiment 1 for example) or the preset distance that is separated from each other.
Moreover, above-mentioned at least one positive pole is drawn electrically-conductive backing plate 21 and these negative poles and is drawn electrically-conductive backing plate 22 and all can bend along folding line (shown in the dotted line among Fig. 1-4), draws the end of electrically-conductive backing plate 22 is arranged at this encapsulation unit 3 by the mode of bending bottom (shown in the step 3 among Fig. 1-4) so that above-mentioned at least one positive pole is drawn terminal and each negative pole of electrically-conductive backing plate 21.Therefore, with embodiment 1 for example, this creation can provide at least one anodal product leading foot (for example at least one positive pole is drawn electrically-conductive backing plate 21) and three negative pole product leading foots (for example three negative poles are drawn electrically-conductive backing plate 22).
In addition, cooperate shown in Fig. 1-5 figure, this encapsulation unit 3 coats the part of these capacitor cells 1 and this base board unit 2, draws an end of electrically-conductive backing plate 21 and the end that each negative pole is drawn electrically-conductive backing plate 22 to expose above-mentioned at least one positive pole.In addition, be coated with conductive layer S1 between per two capacitor cells 1, for example: elargol or silver paste, so that the negative pole end N of each capacitor cell 1 is stacked electrically.In other words, these carbon pastes 13 of these capacitor cells 1 pass through these conductive layers S1 and change stack up electrically.In addition, the top of these capacitor cells 1 and the outside are coated with one deck conductive layer S2, for example: elargol or silver paste.
Shown in Fig. 1-6, the embodiment of the invention 1 also can be carried out double-deck piling up, and can save the use as the conductive layer S1 of Fig. 1-5 figure according to the raising requirement of series resistance.In other words, these carbon pastes 13 of these capacitor cells 1 can be directly stack up repeatedly electrically, and the top of the capacitor cell 1 on these upper stratas and the outside for example are coated with one deck conductive layer S2(: elargol or silver paste), the outside that reaches bottom of these lower floor's capacitor cells 1 is coated with one deck conductive layer S3.Certainly, the present invention also can be by those conductive layers S1 and the purpose that cooperating of this conductive layer S2 reaches double stacked (as the double stacked of these capacitor cells 1 of Fig. 1-6), perhaps the present invention also can be only by this conductive layer S2 with reach single layer stack purpose (as the single layer stack of these capacitor cells 1 of Fig. 1-5 figure) cooperating of this conductive layer S3.
In addition, these capacitor cells 1 these anodal pin 100(are shown in Fig. 1-2) can be by a plurality of pad A be stacked electrically each other (shown in Fig. 1-5 figure and Fig. 1-6).
(be divided into into three steps as shown in Figure 2, first step is a three-dimensional exploded view, second step is to look constitutional diagram on half-finished, third step is the bottom view of finished product), the embodiment of the invention 2 provides a kind of stack solid electrolytic capacitor with multiterminal product leading foot, comprising: a plurality of capacitor cells 1, a base board unit 2 and an encapsulation unit 3.
Wherein, these capacitor cells 1 are stacked each other on together, wherein the positive terminal P of each capacitor cell 1 has an anodal pin 100 of outwards drawing, the anodal pin 100 of these of these capacitor cells 1 be stacked electrically each other and form an anodal pin units 100 ', and the negative pole end N of these capacitor cells 1 is stacked each other electrically.In addition, this base board unit 2 have at least one be electrically connected at the anodal pin units 100 of the anodal pin 100(of these of these capacitor cells 1 ') positive pole draw electrically-conductive backing plate 21 and a plurality of negative pole that is electrically connected at these negative pole ends N of these capacitor cells 1 is drawn electrically-conductive backing plate 22, and these negative poles draw electrically-conductive backing plate 22 can combine and become the monolithic electrically-conductive backing plate or the preset distance that is separated from each other (as embodiment 2 for example).Moreover, above-mentioned at least one positive pole is drawn electrically-conductive backing plate 21 and these negative poles and is drawn electrically-conductive backing plate 22 and all can bend along folding line (shown in the dotted line among Fig. 2), draws the end of electrically-conductive backing plate 22 is arranged at this encapsulation unit 3 by the mode of bending bottom (shown in the step 3 among Fig. 2) so that above-mentioned at least one positive pole is drawn terminal and each negative pole of electrically-conductive backing plate 21.
By among the figure as can be known, the embodiment of the invention 2 is with the difference of embodiment 1 maximum: in embodiment 2, the negative pole end N of each capacitor cell 1 has a negative pole pin 110 of outwards drawing, these negative pole pins 110 be divided into plural groups negative pole pin units 110 ', each group negative pole pin units 110 ' these negative pole pins 110 be stacked and these negative pole pin units 110 ' be separated from each other and be electrically connected at these negative poles respectively and draw electrically-conductive backing plate 22 each other electrically.Therefore, with embodiment 2 for example, this creation can provide at least one anodal product leading foot (for example at least one positive pole is drawn electrically-conductive backing plate 21) and three negative pole product leading foots (for example three negative poles are drawn electrically-conductive backing plate 22).
(be divided into into three steps as shown in Figure 3, first step is a three-dimensional exploded view, second step is to look constitutional diagram on half-finished, third step is the bottom view of finished product), the embodiment of the invention 3 provides a kind of stack solid electrolytic capacitor with multiterminal product leading foot, and it comprises: a plurality of capacitor cells 1, a base board unit 2 and an encapsulation unit 3.
Wherein, these capacitor cells 1 are stacked each other on together, wherein the positive terminal P of each capacitor cell 1 has an anodal pin 100 of outwards drawing, these anodal pins 100 be divided into the anodal pin units 100 of plural groups ', each organize anodal pin units 100 ' these anodal pins 100 be stacked electrically each other, and the negative pole end N of these capacitor cells 1 is stacked each other electrically.In addition, this base board unit 2 have a plurality of separated from one another and be electrically connected at respectively these anodal pin units 100 of these capacitor cells 1 ' positive pole draw electrically-conductive backing plate 21 and a plurality of negative pole that is electrically connected at the negative pole end N of these capacitor cells 1 and draw these negative poles of electrically-conductive backing plate 22(and draw electrically-conductive backing plate 22 and can combine and become the monolithic electrically-conductive backing plate or the preset distance that is separated from each other).Moreover, these positive poles are drawn electrically-conductive backing plate 21 and these negative poles and are drawn electrically-conductive backing plate 22 and all can bend along folding line (shown in the dotted line among Fig. 3), draw the end of electrically-conductive backing plate 22 is arranged at this encapsulation unit 3 by the mode of bending bottom (shown in the step 3 among Fig. 3) so that each positive pole is drawn terminal and each negative pole of electrically-conductive backing plate 21.
By among the figure as can be known, the embodiment of the invention 3 is with the difference of embodiment 1 maximum: in embodiment 3, this base board unit 2 have a plurality of separated from one another and be electrically connected at respectively these anodal pin units 100 of these capacitor cells 1 ' positive pole draw electrically-conductive backing plate 21 and a plurality of negative pole that is electrically connected at the negative pole end N of these capacitor cells 1 is drawn electrically-conductive backing plate 22.Therefore, with embodiment 3 for example, this creation can provide two anodal product leading foots (for example two positive poles are drawn electrically-conductive backing plate 21) and two negative pole product leading foots (for example two negative poles are drawn electrically-conductive backing plate 22).
Embodiment 4
(be divided into into three steps as shown in Figure 4, first step is a three-dimensional exploded view, second step is to look constitutional diagram on half-finished, third step is the bottom view of finished product), the embodiment of the invention 4 provides a kind of stack solid electrolytic capacitor with multiterminal product leading foot, and it comprises: a plurality of capacitor cells 1, a base board unit 2 and an encapsulation unit 3.
Wherein, these capacitor cells 1 are stacked each other on together, wherein the positive terminal P of each capacitor cell 1 has an anodal pin 100 of outwards drawing, these anodal pins 100 be divided into the anodal pin units 100 of plural groups ', each organize anodal pin units 100 ' these anodal pins 100 be stacked electrically each other, and these capacitor cells 1 negative pole end N is stacked each other electrically.In addition, this base board unit 2 have a plurality of separated from one another and be electrically connected at respectively these anodal pin units 100 of these capacitor cells 1 ' positive pole draw electrically-conductive backing plate 21 and a plurality of negative pole that is electrically connected at the negative pole end N of these capacitor cells 1 and draw these negative poles of electrically-conductive backing plate 22(and draw electrically-conductive backing plate 22 and can combine and become the monolithic electrically-conductive backing plate or the preset distance that is separated from each other).Moreover, these positive poles are drawn electrically-conductive backing plate 21 and these negative poles and are drawn electrically-conductive backing plate 22 and all can bend along folding line (shown in the dotted line among Fig. 4), be arranged at the bottom (shown in the step 3 among Fig. 4) of this encapsulation unit 3 so that each positive pole is drawn end that terminal and each negative pole of electrically-conductive backing plate 21 draws electrically-conductive backing plate 22 by the mode of bending, and these negative poles end of drawing electrically-conductive backing plate 22 is bonded together and forms a single product leading foot.
By among the figure as can be known, the embodiment of the invention 4 is with the difference of embodiment 3 maximums: in embodiment 4, the end that these negative poles that are electrically connected at the negative pole end N of these capacitor cells 1 are drawn electrically-conductive backing plate 22 can link together.Therefore, with embodiment 4 for example, this creation can provide two anodal product leading foots (for example two positive poles are drawn electrically-conductive backing plate 21) and at least one negative pole product leading foot (for example draw the single negative pole that electrically-conductive backing plate 22 formed by two negative poles and draw electrically-conductive backing plate).
Embodiment 5
(be divided into into three steps as shown in Figure 5, first step is a three-dimensional exploded view, second step is to look constitutional diagram on half-finished, third step is the bottom view of finished product), the embodiment of the invention 5 provides a kind of stack solid electrolytic capacitor with multiterminal product leading foot, and it comprises: a plurality of capacitor cells 1, a base board unit 2 and an encapsulation unit 3.
Wherein, these capacitor cells 1 are stacked each other on together, wherein the positive terminal P of each capacitor cell 1 has an anodal pin 100 of outwards drawing, these anodal pins 100 be divided into the anodal pin units 100 of plural groups ', each organize anodal pin units 100 ' these anodal pins 100 be stacked electrically each other, and the negative pole end N of these capacitor cells 1 is stacked each other electrically.In addition, this base board unit 2 have a plurality of separated from one another and be electrically connected at respectively these anodal pin units 100 of these capacitor cells 1 ' positive pole draw electrically-conductive backing plate 21 and at least one negative pole that is electrically connected at the negative pole end N of these capacitor cells 1 is drawn electrically-conductive backing plate 22.Moreover, these positive poles are drawn electrically-conductive backing plate 21 and above-mentioned at least one negative pole and are drawn electrically-conductive backing plate 22 and all can bend along folding line (shown in the dotted line among Fig. 5), draw the end of electrically-conductive backing plate 22 is arranged at this encapsulation unit 3 by the mode of bending bottom (shown in the step 3 among Fig. 5) so that each positive pole is drawn terminal and above-mentioned at least one negative pole of electrically-conductive backing plate 21.
By among the figure as can be known, the embodiment of the invention 5 is with the difference of third and fourth embodiment maximum: in embodiment 5, this base board unit 2 has at least one negative pole that is electrically connected at the negative pole end N of these capacitor cells 1 and draws electrically-conductive backing plate 22, and two ends that above-mentioned at least one negative pole is drawn electrically-conductive backing plate 22 can link together (that is above-mentioned at least one negative pole one end of drawing electrically-conductive backing plate 22 can be connected to the other end that above-mentioned at least one negative pole is drawn electrically-conductive backing plate 22).Therefore, with embodiment 5 for example, this creation can provide two anodal product leading foots (for example two positive poles are drawn electrically-conductive backing plate 21) and at least one negative pole product leading foot (for example at least one negative pole is drawn electrically-conductive backing plate 22), and two ends of this negative pole product leading foot (above-mentioned at least two negative poles are drawn two ends of electrically-conductive backing plate 22) can link together.
Embodiment 6
(be divided into into three steps as shown in Figure 6, first step is a three-dimensional exploded view, second step is to look constitutional diagram on half-finished, third step is the bottom view of finished product), the embodiment of the invention 6 provides a kind of stack solid electrolytic capacitor with multiterminal product leading foot, and it comprises: a plurality of capacitor cells 1, a base board unit 2 and an encapsulation unit 3.
Wherein, these capacitor cells 1 are stacked each other on together, wherein the positive terminal P of each capacitor cell 1 has an anodal pin 100 of outwards drawing, these anodal pins 100 be divided into the anodal pin units 100 of plural groups ', each organize anodal pin units 100 ' these anodal pins 100 be stacked electrically each other, and the negative pole end N of these capacitor cells 1 is stacked each other electrically.In addition, this base board unit 2 have a plurality of separated from one another and be electrically connected at respectively these anodal pin units 100 of these capacitor cells 1 ' positive pole draw electrically-conductive backing plate 21 and at least one negative pole that is electrically connected at the negative pole end N of these capacitor cells 1 is drawn electrically-conductive backing plate 22.Moreover, these positive poles are drawn electrically-conductive backing plate 21 and above-mentioned at least one negative pole and are drawn electrically-conductive backing plate 22 and all can bend along folding line (shown in the dotted line among Fig. 6), draw the end of electrically-conductive backing plate 22 is arranged at this encapsulation unit 3 by the mode of bending bottom (shown in the step 3 among Fig. 6) so that each positive pole is drawn terminal and above-mentioned at least one negative pole of electrically-conductive backing plate 21.
By among the figure as can be known, the embodiment of the invention 6 is with the difference of embodiment 3 maximums: in embodiment 6, this base board unit 2 have a plurality of separated from one another and be electrically connected at respectively these anodal pin units 100 of these capacitor cells 1 ' positive pole draw electrically-conductive backing plate 21 and at least one negative pole that is electrically connected at the negative pole end N of these capacitor cells 1 is drawn electrically-conductive backing plate 22.Therefore, with embodiment 6 for example, this creation can provide three anodal product leading foots (for example three positive poles are drawn electrically-conductive backing plate 21) and at least one negative pole product leading foot (for example at least one negative pole is drawn electrically-conductive backing plate 22).
Embodiment 7
(be divided into into three steps as shown in Figure 7, first step is a three-dimensional exploded view, second step is to look constitutional diagram on half-finished, third step is the bottom view of finished product), the embodiment of the invention 7 provides a kind of stack solid electrolytic capacitor with multiterminal product leading foot, and it comprises: a plurality of capacitor cells 1, a base board unit 2 and an encapsulation unit 3.
Wherein, these capacitor cells 1 are stacked each other on together, wherein the positive terminal P of each capacitor cell 1 has an anodal pin 100 of outwards drawing, these anodal pins 100 be divided into the anodal pin units 100 of plural groups ', each organize anodal pin units 100 ' these anodal pins 100 be stacked electrically each other, and the negative pole end N of these capacitor cells 1 is stacked each other electrically.In addition, this base board unit 2 have a plurality of separated from one another and be electrically connected at respectively these anodal pin units 100 of these capacitor cells 1 ' positive pole draw electrically-conductive backing plate 21 and a plurality of negative pole that is electrically connected at the negative pole end N of these capacitor cells 1 is drawn electrically-conductive backing plate 22.Moreover, these positive poles are drawn electrically-conductive backing plate 21 and these negative poles and are drawn electrically-conductive backing plate 22 and all can bend along folding line (shown in the dotted line among Fig. 7), draw the end of electrically-conductive backing plate 22 is arranged at this encapsulation unit 3 by the mode of bending bottom (shown in the step 3 among Fig. 7) so that each positive pole is drawn terminal and each negative pole of electrically-conductive backing plate 21.
By among the figure as can be known, the embodiment of the invention 7 is with the difference of embodiment 3 maximums: in embodiment 7, the negative pole end N of each capacitor cell 1 has a negative pole pin 110 of outwards drawing, these negative pole pins 110 be divided into plural groups negative pole pin units 110 ', each group negative pole pin units 110 ' these negative pole pins 110 be stacked electrically mutually, and these negative pole pin units 100 ' be separated from each other and be electrically connected at these negative poles respectively and draw electrically-conductive backing plate 22, and these negative poles are drawn electrically-conductive backing plate 22 and can be combined and become the monolithic electrically-conductive backing plate (as embodiment 3,4,5 for example) or the preset distance that is separated from each other (as embodiment 7 for example).Therefore, with embodiment 7 for example, this creation can provide two anodal product leading foots (for example two positive poles are drawn electrically-conductive backing plate 21) and two negative pole product leading foots (for example two negative poles are drawn electrically-conductive backing plate 22).
Example example 8
(be divided into into three steps as shown in Figure 8, first step is a three-dimensional exploded view, second step is to look constitutional diagram on half-finished, third step is the bottom view of finished product), the embodiment of the invention 8 provides a kind of stack solid electrolytic capacitor with multiterminal product leading foot, and it comprises: a plurality of capacitor cells 1, a base board unit 2 and an encapsulation unit 3.
Wherein, these capacitor cells 1 are stacked each other on together, wherein the positive terminal P of each capacitor cell 1 has an anodal pin 100 of outwards drawing, these anodal pins 100 be divided into the anodal pin units 100 of plural groups ', each organize anodal pin units 100 ' these anodal pins 100 be stacked electrically each other, and the negative pole end N of these capacitor cells 1 is stacked each other electrically.In addition, this base board unit 2 have a plurality of separated from one another and be electrically connected at respectively these anodal pin units 100 of these capacitor cells 1 ' positive pole draw electrically-conductive backing plate 21 and a plurality of negative pole that is electrically connected at the negative pole end N of these capacitor cells 1 and draw these negative poles of electrically-conductive backing plate 22(and draw electrically-conductive backing plate 22 and can combine and become the monolithic electrically-conductive backing plate or the preset distance that is separated from each other).Moreover, these positive poles are drawn electrically-conductive backing plate 21 and these negative poles and are drawn electrically-conductive backing plate 22 and all can bend along folding line (shown in the dotted line among Fig. 8), draw the end of electrically-conductive backing plate 22 is arranged at this encapsulation unit 3 by the mode of bending bottom (shown in the step 3 among Fig. 8) so that each positive pole is drawn terminal and each negative pole of electrically-conductive backing plate 21.
By among the figure as can be known, the embodiment of the invention 8 is with the difference of embodiment 3 maximums: in embodiment 8, be electrically connected at same positive pole and draw that these anodal pin units 100 of electrically-conductive backing plate 21 ' can distinguish the plural groups pin in the same direction extends, and these anodal pin units 100 ' separated from one another are to reduce whole welding and assembling height.
In sum, the advantage that the present invention has the stack solid electrolytic capacitor of multiterminal product leading foot is: utilize a plurality of anodal pins (these anodal pins are outwards drawn from the same direction or the different directions of these positive terminals respectively) and the negative pole pin draws electrically-conductive backing plate with a plurality of positive poles respectively and negative pole is drawn cooperating of electrically-conductive backing plate, weld degree of difficulty to reduce, and significantly reduce the equivalent series resistance and the equivalent series inductance of same capability capacitor.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. stack solid electrolytic capacitor with multiterminal product leading foot comprises:
A plurality of capacitor cells, these capacitor cells are stacked each other on together, and each capacitor cell has a positive terminal and a negative pole end, wherein the positive terminal of each capacitor cell has an anodal pin of outwards drawing, the anodal pin of these of these capacitor cells is stacked each other electrically, and the negative pole end of these capacitor cells is stacked each other electrically;
One base board unit, it has, and at least one positive pole that is electrically connected at these anodal pins of these capacitor cells is drawn electrically-conductive backing plate and a plurality of negative pole that is electrically connected at these negative pole ends of these capacitor cells is drawn electrically-conductive backing plate; And
One encapsulation unit, it coats the part of these capacitor cells and this base board unit, draws an end of electrically-conductive backing plate and the end that each negative pole is drawn electrically-conductive backing plate to be used to exposing above-mentioned at least one positive pole.
2. the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 1, wherein each capacitor cell has electroconductive polymer layer, and the carbon paste that coats this electroconductive polymer layer that oxide insulating layer, that a valve metal paillon foil, coats this valve metal paillon foil coats a side of this oxide insulating layer, wherein these carbon pastes of these capacitor cells are by elargol or silver paste stack up repeatedly electrically, and these anodal pins are electrically connected by a plurality of pads.
3. the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 2, wherein the edge of each oxide insulating layer optionally installs colloid additional, have one on the part outer surface of the oxide insulating layer of each capacitor cell and surround into an insulating barrier that encloses, limiting the length of these electroconductive polymer layers and these carbon pastes, and these anodal pins are outwards drawn from the same direction or the different directions of these positive terminals respectively.
4. the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 1, wherein each capacitor cell has electroconductive polymer layer, and the carbon paste that coats this electroconductive polymer layer that oxide insulating layer, that a valve metal paillon foil, coats this valve metal paillon foil coats a side of this oxide insulating layer, the direct stack up repeatedly electrically of these carbon pastes of these capacitor cells wherein, and these anodal pins are electrically connected by a plurality of pads.
5. the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 1, wherein the negative pole end of each capacitor cell has a negative pole pin of outwards drawing, these negative pole pins are divided into plural groups negative pole pin units, these negative pole pins of each group negative pole pin units are stacked each other electrically, and these negative pole pin units are separated from each other and are electrically connected at these negative poles respectively and draw electrically-conductive backing plate.
6. the end that terminal and each negative pole that the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 1, wherein above-mentioned at least one positive pole are drawn electrically-conductive backing plate is drawn electrically-conductive backing plate is arranged at the bottom of this encapsulation unit.
7. stack solid electrolytic capacitor with multiterminal product leading foot, it comprises:
A plurality of capacitor cells, these capacitor cells are stacked each other on together, and each capacitor cell has a positive terminal and a negative pole end, wherein the positive terminal of each capacitor cell has an anodal pin of outwards drawing, these anodal pins are divided into the anodal pin units of plural groups, each these anodal pin of organizing anodal pin units is stacked each other electrically, and the negative pole end of these capacitor cells is stacked each other electrically;
One base board unit, it has a plurality of separated from one another and positive pole that be electrically connected at these anodal pin units of these capacitor cells respectively draws electrically-conductive backing plate and at least one negative pole that is electrically connected at the negative pole end of these capacitor cells is drawn electrically-conductive backing plate; And
One encapsulation unit, it coats the part of these capacitor cells and this base board unit, draws an end of electrically-conductive backing plate and the end that above-mentioned at least one negative pole is drawn electrically-conductive backing plate to be used to exposing each positive pole.
8. the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 7, wherein each capacitor cell has electroconductive polymer layer, and the carbon paste that coats this electroconductive polymer layer that oxide insulating layer, that a valve metal paillon foil, coats this valve metal paillon foil coats a side of this oxide insulating layer, these carbon pastes of these capacitor cells stack up repeatedly by elargol or silver paste and electrically wherein, and these anodal pins are electrically connected by a plurality of pads.
9. the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 7, wherein the edge of each oxide insulating layer optionally installs colloid additional, have one on the part outer surface of the oxide insulating layer of each capacitor cell and surround into an insulating barrier that encloses, limiting the length of these electroconductive polymer layers and these carbon pastes, and these anodal pins are outwards drawn from the same direction or the different directions of these positive terminals respectively.
10. the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 7, wherein each capacitor cell has electroconductive polymer layer, and the carbon paste that coats this electroconductive polymer layer that oxide insulating layer, that a valve metal paillon foil, coats this valve metal paillon foil coats a side of this oxide insulating layer, the direct stack up repeatedly electrically of these carbon pastes of these capacitor cells wherein, and these anodal pins are electrically connected by a plurality of pads.
11. the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 7, wherein this base board unit comprises that further a plurality of other negative poles draw electrically-conductive backing plate, the negative pole end of each capacitor cell has a negative pole pin of outwards drawing, these negative pole pins are divided into plural groups negative pole pin units, these negative pole pins of each group negative pole pin units are stacked mutually electrically, and these negative pole pin units are separated from each other and are electrically connected at these negative poles respectively and draw electrically-conductive backing plate.
12. the stack solid electrolytic capacitor with multiterminal product leading foot according to claim 7, wherein each positive pole is drawn the bottom that end that terminal and above-mentioned at least one negative pole of electrically-conductive backing plate draws electrically-conductive backing plate is arranged at this encapsulation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105770616A CN102024567A (en) | 2010-12-07 | 2010-12-07 | Stack type solid electrolytic capacitor with multi-end product lead-out pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105770616A CN102024567A (en) | 2010-12-07 | 2010-12-07 | Stack type solid electrolytic capacitor with multi-end product lead-out pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102024567A true CN102024567A (en) | 2011-04-20 |
Family
ID=43865751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105770616A Pending CN102024567A (en) | 2010-12-07 | 2010-12-07 | Stack type solid electrolytic capacitor with multi-end product lead-out pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102024567A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426643A (en) * | 2012-07-25 | 2013-12-04 | 钰邦电子（无锡）有限公司 | Stack type solid electrolytic capacitor packaging structure with multiple negative electrode lead-out pins and manufacturing method thereof |
| CN103456513A (en) * | 2013-02-06 | 2013-12-18 | 钰邦电子（无锡）有限公司 | Solid electrolytic capacitor packaging structure for reducing equivalent series resistance and manufacturing method thereof |
| CN104518523A (en) * | 2013-10-01 | 2015-04-15 | Abb技术股份公司 | Energy supply device for explosion-proof electronic functional units |
| CN112002556A (en) * | 2020-08-24 | 2020-11-27 | 东佳电子（郴州）有限公司 | Stacked solid-state capacitor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06120088A (en) * | 1992-09-30 | 1994-04-28 | Nichicon Corp | Chip-type solid-state electrolytic capacitor |
| US20020015277A1 (en) * | 1999-12-10 | 2002-02-07 | Hiroshi Nitoh | Solid electrolytic multilayer capacitor |
| CN1542879A (en) * | 2003-04-10 | 2004-11-03 | Nec������ʽ���� | Chip-type solid electrolytic capacitor having a terminal of a unique shape and method of producing the same |
| CN101060040A (en) * | 2006-04-21 | 2007-10-24 | 三洋电机株式会社 | Stacked solid electrolytic capacitor and manufacturing method thereof |
| CN101107686A (en) * | 2005-01-24 | 2008-01-16 | 松下电器产业株式会社 | Chip type solid electrolytic capacitor |
| CN201893242U (en) * | 2010-12-07 | 2011-07-06 | 钰邦电子（无锡）有限公司 | Stacked solid state electrolytic capacitor with multi-end product pin |
-
2010
- 2010-12-07 CN CN2010105770616A patent/CN102024567A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06120088A (en) * | 1992-09-30 | 1994-04-28 | Nichicon Corp | Chip-type solid-state electrolytic capacitor |
| US20020015277A1 (en) * | 1999-12-10 | 2002-02-07 | Hiroshi Nitoh | Solid electrolytic multilayer capacitor |
| CN1542879A (en) * | 2003-04-10 | 2004-11-03 | Nec������ʽ���� | Chip-type solid electrolytic capacitor having a terminal of a unique shape and method of producing the same |
| CN101107686A (en) * | 2005-01-24 | 2008-01-16 | 松下电器产业株式会社 | Chip type solid electrolytic capacitor |
| CN101060040A (en) * | 2006-04-21 | 2007-10-24 | 三洋电机株式会社 | Stacked solid electrolytic capacitor and manufacturing method thereof |
| CN201893242U (en) * | 2010-12-07 | 2011-07-06 | 钰邦电子（无锡）有限公司 | Stacked solid state electrolytic capacitor with multi-end product pin |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426643A (en) * | 2012-07-25 | 2013-12-04 | 钰邦电子（无锡）有限公司 | Stack type solid electrolytic capacitor packaging structure with multiple negative electrode lead-out pins and manufacturing method thereof |
| CN103456513A (en) * | 2013-02-06 | 2013-12-18 | 钰邦电子（无锡）有限公司 | Solid electrolytic capacitor packaging structure for reducing equivalent series resistance and manufacturing method thereof |
| CN103456513B (en) * | 2013-02-06 | 2016-06-22 | 钰邦电子（无锡）有限公司 | Solid electrolytic capacitor packaging structure for reducing equivalent series resistance and manufacturing method thereof |
| CN104518523A (en) * | 2013-10-01 | 2015-04-15 | Abb技术股份公司 | Energy supply device for explosion-proof electronic functional units |
| CN104518523B (en) * | 2013-10-01 | 2018-08-17 | Abb瑞士股份有限公司 | Power supply for explosion-proof electronic functional unit |
| CN112002556A (en) * | 2020-08-24 | 2020-11-27 | 东佳电子（郴州）有限公司 | Stacked solid-state capacitor |
| CN112002556B (en) * | 2020-08-24 | 2021-10-22 | 东佳电子（郴州）有限公司 | Stacked solid-state capacitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6576365B1 (en) | Ultra-thin electrochemical energy storage devices | |
| CN203456311U (en) | Stack type solid electrolytic capacitor packaging structure | |
| TWI395244B (en) | Lamellar stacked solid electrolytic condenser | |
| US8305735B2 (en) | Stacked solid electrolytic capacitor with multi-pin structure | |
| TWI421888B (en) | Stacked capacitor with many product pins | |
| CN102103928B (en) | Capacitor packaging structure | |
| CN102024567A (en) | Stack type solid electrolytic capacitor with multi-end product lead-out pin | |
| CN103426643A (en) | Stack type solid electrolytic capacitor packaging structure with multiple negative electrode lead-out pins and manufacturing method thereof | |
| CN104103427B (en) | Decoupling component | |
| CN102074383B (en) | Stack solid electrolytic capacitor with multi-end pins | |
| CN201893242U (en) | Stacked solid state electrolytic capacitor with multi-end product pin | |
| CN103456513A (en) | Solid electrolytic capacitor packaging structure for reducing equivalent series resistance and manufacturing method thereof | |
| CN102103932B (en) | Capacitor encapsulation structure using surface mount technology | |
| CN102103933B (en) | Capacitor packaging structure using surface mounting technology | |
| CN102074354B (en) | Stack capacitor with multi-end anode pins | |
| US20200082991A1 (en) | Capacitor, capacitor package structure and method of manufacturing the same | |
| CN102074382B (en) | Solid-state electrolytic capacitor with multiple lead-out pins | |
| CN102142322B (en) | Flaky stack solid electrolytic capacitor | |
| CN102142324A (en) | Sheet stack type solid electrolytic capacitor | |
| CN102142323B (en) | Stack-type solid electrolytic capacitor | |
| CN102142321B (en) | Stack-type solid electrolytic capacitor | |
| CN203562317U (en) | Improved stack type solid electrolytic capacitor packaging structure | |
| KR101244281B1 (en) | Super capacitor using separator-electrode and manufacturing method thereof | |
| US8310814B2 (en) | Stacked capacitor with positive multi-pin structure | |
| KR101306600B1 (en) | Method for manufacturing super capacitor of surface mount type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110420 |