CN103680983A - 450 V electrolytic capacitor and production technology thereof - Google Patents
450 V electrolytic capacitor and production technology thereof Download PDFInfo
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- CN103680983A CN103680983A CN201310728425.XA CN201310728425A CN103680983A CN 103680983 A CN103680983 A CN 103680983A CN 201310728425 A CN201310728425 A CN 201310728425A CN 103680983 A CN103680983 A CN 103680983A
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Abstract
The invention discloses a 450 V electrolytic capacitor and a production technology thereof. The 450 V electrolytic capacitor comprises a shell, a core, a sealing plug, a negative wire and a positive wire, wherein the core comprises a cathode foil and an anode foil; the core further comprises insulating electrolytic paper; electrolyte is added to the insulating electrolytic paper; the voltage value of the anode foil is 630 VF; the voltage of the cathode foil is 5 V; the capacity of the electrolytic capacitor is less than 200 muF; the insulating electrolytic paper is two-layer composite insulating electrolytic paper, and has the density of 70 g/m3 and the thickness of 70 microns; the positive wire and the negative wire are made of high-temperature formed wires; the sealing plug is made of a 100% IIR colloidal particle material; the shell has the diameter of the bottom surface thereof of 13-22 mm and the height of 21-35 mm. The electrolytic capacitor has good temperature tolerance and long service life, and the load life reaches to 10000-15000 hours at 105 DEG C.
Description
Technical field
The present invention relates to a kind of electrochemical capacitor, in particular a kind of 450V electrolytic capacitor and production technology thereof.
Background technology
The volume of electrochemical capacitor (size) size is a key factor of restriction electrolytic capacitor performance, how to increase the size of electrochemical capacitor, to improve the life-span of temperature tolerance and the increase electrochemical capacitor of electrochemical capacitor, is existing technical staff's research direction.Electrochemical capacitor of the prior art, under the condition of 105 ℃ (or more than), load life is generally 1000-2000 hour, these electric capacity are for aspect poor durability such as tunnel (highway) illumination, seabed irradiation, court illumination, advertisement irradiations, need often to change, but due to the complexity of using area, change greatlyr, cost is higher.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide a kind of 450V electrolytic capacitor and production technology thereof, be intended to solve electrochemical capacitor of the prior art shorter technical problem of load life under the condition of 105 ℃ (or more than).
Technical scheme of the present invention is as follows: a kind of 450V electrolytic capacitor, wherein, comprises shell, fuse, sealing plug, negative wire and positive wire; Described shell is arranged to single-ended closed barrel-shaped, and described fuse is placed in enclosure, and sealing plug is arranged on the open end of shell, and negative wire is connected with fuse respectively with positive wire, all through sealing plug, from the openend of shell, stretches out;
Described fuse comprises the Cathode Foil being connected with negative wire coiling and the anode foils of reeling and being connected with positive wire, and described fuse also comprises the insulation electrolytic paper of reel respectively parcel Cathode Foil and anode foils, and described insulation electrolytic paper is separated Cathode Foil and anode foils; On described insulation electrolytic paper, be added with electrolyte;
The magnitude of voltage of described anode foils is 630VF;
The voltage of described Cathode Foil is 5V;
Described electrolytic capacitor capacity is 10 μ F-33 μ F;
Described insulation electrolytic paper adopts compound two-layer insulation electrolytic paper, and density is 70 g/m3, and thickness is 70 μ m;
Described negative wire and positive wire all adopt high temperature to change into lead-in wire;
Described sealing plug adopts 100%IIR micelle material seal plug;
Described shell bottom surface diameter is 13-22mm, and height is 21-35mm;
The composition of described electrolyte comprises:
Main solvent: ethylene glycol 40%-50%;
Complementary solvent: diethylene glycol (DEG) 10%-20%, triethylene glycol 10%-20%, glycerol 10%-20%, gamma-hydroxybutyric acid lactone 10%-20%;
Main solute: dodecandioic acid ammonium 3%-10%, 8-vaccenic acid bisgallic acid ammonium 3%-10%;
Nitre hydrogen agent: ortho-nitroanisole 0.1%-0.9%.
Described 450V electrolytic capacitor, wherein, described 450V electrolytic capacitor capacity is 10 μ F, and described shell bottom surface diameter is 13mm, and height is 21mm.
Described 450V electrolytic capacitor, wherein, described 450V electrolytic capacitor capacity is 15 μ F, and described shell bottom surface diameter is 16mm, and height is 25mm.
Described 450V electrolytic capacitor, wherein, described 450V electrolytic capacitor capacity is 22 μ F, and described shell bottom surface diameter is 18mm, and height is 32mm.
Described 450V electrolytic capacitor, wherein, described 450V electrolytic capacitor capacity is 33 μ F, and described shell bottom surface diameter is 22mm, and height is 35mm.
The production technology of described 450V electrolytic capacitor, wherein, comprises the following steps:
A. make Cathode Foil and anode foils: galvano-cautery Cathode Foil and anode foils, after galvano-cautery, be oxidized Cathode Foil and anode foils, in Cathode Foil and anode foils surface, form oxide-film;
B. cutting Cathode Foil, anode foils and insulation electrolytic paper, be connected with Cathode Foil lead-in wire respectively with anode foils, forms negative wire and positive wire, and insulation electrolytic paper and Cathode Foil, anode foils are reeled;
C. add electrolyte, electrolyte is impregnated on insulation electrolytic paper;
D. carry out last assembling, crimping, charging, burn-in test and parameter detecting.
Beneficial effect of the present invention: the present invention is by carrying out reasonable disposition to the characteristic of all parts of electrolytic capacitor, and coordinate electrolyte of the present invention, realized the overall volume that increases 450V electrolytic capacitor, reach the practical application effect that improves its temperature tolerance and extend its life-span under the prerequisite that guarantees the normal work of electrochemical capacitor, electrolytic capacitor of the present invention is normally worked under the condition of 105 ℃, load life reaches 10000-15000 hour, is far longer than the load life of the electrolytic capacitor of prior art.
Accompanying drawing explanation
Fig. 1 is the structural representation of 450V electrolytic capacitor in the present invention.
Fig. 2 is the structural representation of 450V electrolytic capacitor fuse in the present invention.
Fig. 3 is the test data tabular drawing of 450V electrolytic capacitor in the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, clear and definite, referring to accompanying drawing, developing simultaneously, the present invention is described in more detail for embodiment.
The invention discloses a kind of 450V electrolytic capacitor, as shown in Figure 1, comprise shell 100, fuse 200, sealing plug 300, negative wire 400 and positive wire 500; Wherein, shell 100 is arranged to single-ended closed barrel-shaped, i.e. shell 100 one end sealings, an end opening; Fuse 200 is placed in shell 100 inside, near the blind end of shell 100; Sealing plug 300 is arranged on the open end of shell, for fuse 200 is hedged off from the outer world, and protection fuse 200; Negative wire 400 is connected with fuse 200 respectively with positive wire 500, all through sealing plug 300, from the openend of shell 100, stretches out, and when electrolytic capacitor uses, negative wire 400 is connected respectively external circuitry with positive wire 500.
As shown in Figure 2, fuse 200 comprises the Cathode Foil 210 being connected with negative wire 400 coilings and the anode foils 220 of reeling and being connected with positive wire 500, described fuse 200 also comprises the insulation electrolytic paper 230 of reel respectively parcel Cathode Foil 210 and anode foils 220, and described insulation electrolytic paper 230 is separated Cathode Foil 210 and anode foils 220; On insulation electrolytic paper 230, be added with electrolyte.
Electrolytic capacitor is a kind of precision components of small volume, the characteristic joint effect that forms each parts of electrolytic capacitor the performance of electrolytic capacitor final products, find after deliberation, only increase merely the size (comprising the size that increases shell, Cathode Foil, anode foils and insulation electrolytic paper) of each parts, to increase the volume (inner space) of electrolytic capacitor, be to reach the practical application effect that improves its temperature tolerance and extend its life-span under the prerequisite that guarantees the normal work of electrochemical capacitor, even cannot guarantee the normal work of electrolytic capacitor.
Each parts that form electrolytic capacitor form a stable integral body, in the time need to changing the characteristic of one of them parts (such as changing its size, voltage or material etc.), need to there is relative change in the characteristic of miscellaneous part, to guarantee that electrolytic capacitor normally works.Through inventor's experimental study repeatedly, take following scheme can reach good technique effect: the magnitude of voltage that anode foils 220 is set is that 630VF(is that the rated value of Waste Acid From Hua Cheng Foil oxide-film proof voltage is 630VF in fact), temperature in the time of can effectively reducing electrolytic capacitor load, the temperature tolerance of raising electrolytic capacitor; The voltage of Cathode Foil 210 is that 5V(is that the final voltage that Cathode Foil is applied in formation process is 1.5V-5V in fact) and electrolytic capacitor capacity be 10 μ F-33 μ F, can effectively prevent that like this electrolytic capacitor is bypassed interference when load; Insulation electrolytic paper 230 adopts compound two-layer insulation electrolytic paper, and its density is 70 g/m3, and insulation electrolytic paper 230 thickness are 70 μ m; Negative wire 400 and positive wire 500 all adopt high temperature to change into lead-in wire, can improve the temperature tolerance of electrolytic capacitor like this, guarantee that the performance of electrolytic capacitor when hot operation is (because when high temperature, the material of negative wire 400 and positive wire 500 is changed by temperatures involved, easily affects the conductivity of electrolytic capacitor pin); Sealing plug adopts 100%IIR(butyl rubber) micelle material seal plug, can increase like this sealing of electrolytic capacitor, guarantee that fuse 200 is not subject to ectocine; Shell 100 bottom surface diameters are 13-22mm, and height is 21-35mm, suitably increase the inner space that the size of shell can increase electrolytic capacitor, are conducive to strengthen the heat sinking function of electrolytic capacitor when load, thereby improve the life-span of electrolytic capacitor.
The invention also discloses a kind of production technology of 450V electrolytic capacitor, wherein, comprise the following steps:
A. make Cathode Foil and anode foils: galvano-cautery Cathode Foil and anode foils, make Cathode Foil and anode foils surface irregularity, can greatly increase Cathode Foil and anode foils and electrolytical contact area like this, improve the electric conductivity of electrolytic capacitor; After galvano-cautery, be oxidized Cathode Foil and anode foils, in Cathode Foil and anode foils surface, form oxide-film, in practical application, the main aluminium foil that adopts is as Cathode Foil and anode foils, and alumina foil makes its surface form alundum (Al2O3) as the medium of electrolytic capacitor;
B. cutting Cathode Foil, anode foils and insulation electrolytic paper, be connected with Cathode Foil lead-in wire respectively with anode foils, forms negative wire and positive wire, and insulation electrolytic paper and Cathode Foil, anode foils are reeled; In practical application, lead-in wire can be divided into and the direct-connected lead of Cathode Foil and anode foils and the outer lead being connected by supersonic bonding method with lead, and lead is placed in enclosure, and outer lead is placed in housing exterior;
C. add electrolyte, electrolyte is impregnated on insulation electrolytic paper; Having adsorbed the insulation electrolytic paper of electrolyte and Cathode Foil and anode foils fits layer by layer;
D. carry out last assembling, crimping, charging, burn-in test and parameter detecting.
Affect the factor of electrolytic capacitor performance except the characteristic of each parts of composition electrolytic capacitor, also having an important factor is exactly to make the electrolyte of electrolytic capacitor, and electrolyte must be worked in coordination to use with each parts that form electrolytic capacitor and just can be reached the technique effect that improves electrolytic capacitor performance.
In the present invention, electrolyte comprises that the composition of described electrolyte comprises:
Main solvent: ethylene glycol 40%-50%;
Complementary solvent: diethylene glycol (DEG) 10%-20%, triethylene glycol 10%-20%, glycerol 10%-20%, gamma-hydroxybutyric acid lactone (GBL) 10%-20%;
Main solute: dodecandioic acid ammonium 3%-10%, 8-vaccenic acid bisgallic acid ammonium 3%-10%;
Nitre hydrogen agent: ortho-nitroanisole 0.1%-0.9%.
As shown in Figure 3, it is the test data of the 450V electrolytic capacitor in the present invention, comprising 10 μ F, 15 μ F, 22 μ F and tetra-kinds of capacity of 33 μ F, 100 of each capacities are as test samples, record the mean value of peak, minimum and 100 samples of the measurement parameter (comprising these three most important parameters of electrolytic resistance of capacity, loss and electric leakage) of 100 samples in every kind of capacity in Fig. 3.In the measurement of electrochemical capacitor, sample need to meet the following conditions and be only qualified product:
1, capacity can not exceed (higher or lower than) rated capacity 20%;
2, the loss of the electrolytic capacitor of 450V is less than 20 * 0.01;
3, electric leakage is less than LC
max, LC wherein
max=capacity * voltage * 0.01(μ A);
This tests tester used is TH2617 type capacitance measuring tester and TH2686 type LC tester, the method of testing adopting is temperature-accelerated life test method, wherein probe temperature is 125 ℃, 450V electrochemical capacitor of the present invention is used 2500h still can keep normal work under the condition of 125 ℃, that is to say the life-span of electrolytic capacitor of the present invention under the condition of 125 ℃ be at least 2500h(under the condition of 115 ℃ the life-span be about 5000h, under the condition of 105 ℃, the life-span is about 10000h).
The present invention is by utilizing the component combination of above-mentioned electrolyte and above-mentioned each particular characteristics parameter to make electrolytic capacitor, the electrolytic capacitor obtaining is stronger than the temperature tolerance of electrolytic capacitor of the prior art, life-span is longer, under the condition of 105 ℃, the load life of electrolytic capacitor of the present invention is ten times of common electrolytic capacitor, and electrolytic capacitor provided by the invention is specially adapted to tunnel (highway) illumination, seabed irradiation, court illumination or advertisement irradiation etc., and its durability and reliability are remarkable.
Technical scheme energy disclosed in this invention and only can be applicable to 450V electrolytic capacitor, if by the present invention for example, for the electrolytic capacitor of other voltages the electrolytic capacitor of 100V voltage (for), can not reach the technique effect of electrolytic capacitor life to 10000 hour, if the electrolytic capacitor of other voltages need to be extended to more than 10000 hours the useful life under 105 ℃ of temperature environments, must use other technologies scheme, please refer in detail other application schemes of the applicant.
Embodiment 1
Get Cathode Foil and anode foils: galvano-cautery Cathode Foil and anode foils, after galvano-cautery, be oxidized Cathode Foil and anode foils, in Cathode Foil and anode foils surface, form oxide-film; Cutting Cathode Foil, anode foils and insulation electrolytic paper, be connected with Cathode Foil lead-in wire respectively with anode foils, form negative wire and positive wire, and insulation electrolytic paper and Cathode Foil, anode foils are reeled; Add electrolyte, electrolyte is impregnated on insulation electrolytic paper; Carry out last assembling, crimping, charging, burn-in test and parameter detecting.
In the present embodiment, the composition of described electrolyte comprises: main solvent ethylene glycol 40%;
Complementary solvent: diethylene glycol (DEG) 20%, triethylene glycol 10%, glycerol 10%, gamma-hydroxybutyric acid lactone 10%;
Main solute: dodecandioic acid ammonium 3%, 8-vaccenic acid bisgallic acid ammonium 6.1%;
Nitre hydrogen agent: ortho-nitroanisole 0.9%.
In the present embodiment, the magnitude of voltage that anode foils is set is 630VF; The voltage of Cathode Foil is 5V; Insulation electrolytic paper adopts compound two-layer insulation electrolytic paper, and density is 70 g/m3, and thickness is 70 μ m; Negative wire and positive wire all adopt high temperature to change into lead-in wire; Sealing plug adopts 100%IIR micelle material seal plug; Electrolytic capacitor voltage is 450V, and capacity is 10 μ F, and shell bottom surface diameter is 13mm, and height is 21mm.
The temperature tolerance that the present embodiment is made the electrolytic capacitor obtaining is good, and the life-span is long, and under the condition of 105 ℃, load life can reach 10000-15000 hour, is specially adapted to tunnel (highway) illumination, seabed irradiation, court illumination or advertisement irradiation etc.
Embodiment 2
The present embodiment is basic identical with embodiment 1, different, and in the present embodiment, the composition of described electrolyte comprises:
Main solvent: ethylene glycol 50%;
Complementary solvent: diethylene glycol (DEG) 10%, triethylene glycol 10%, glycerol 10%, gamma-hydroxybutyric acid lactone 10%;
Main solute: dodecandioic acid ammonium 6.9%, 8-vaccenic acid bisgallic acid ammonium 3%;
Nitre hydrogen agent: ortho-nitroanisole 0.1%.
In the present embodiment, electrolytic capacitor capacity is 15 μ F, and shell bottom surface diameter is 16mm, and height is 25mm.
Embodiment 3
The present embodiment is basic identical with embodiment 1, different, and in the present embodiment, the composition of described electrolyte comprises:
Main solvent: ethylene glycol 40%;
Complementary solvent: diethylene glycol (DEG) 10%, triethylene glycol 20%, glycerol 10%, gamma-hydroxybutyric acid lactone 10%;
Main solute: dodecandioic acid ammonium 5%, 8-vaccenic acid bisgallic acid ammonium 4.5%;
Nitre hydrogen agent: ortho-nitroanisole 0.5%.
In the present embodiment, electrolytic capacitor capacity is 22 μ F, and shell bottom surface diameter is 18mm, and height is 32mm.
Embodiment 4
The present embodiment is basic identical with embodiment 1, different, and in the present embodiment, the composition of described electrolyte comprises:
Main solvent: ethylene glycol 40%;
Complementary solvent: diethylene glycol (DEG) 10%, triethylene glycol 10%, glycerol 10%, gamma-hydroxybutyric acid lactone 10%;
Main solute: dodecandioic acid ammonium 10%, 8-vaccenic acid bisgallic acid ammonium 9.3%;
Nitre hydrogen agent: ortho-nitroanisole 0.7%.
In the present embodiment, electrolytic capacitor capacity is 33 μ F, and shell bottom surface diameter is 22mm, and height is 35mm.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (6)
1. a 450V electrolytic capacitor, is characterized in that, comprises shell, fuse, sealing plug, negative wire and positive wire; Described shell is arranged to single-ended closed barrel-shaped, and described fuse is placed in enclosure, and sealing plug is arranged on the open end of shell, and negative wire is connected with fuse respectively with positive wire, all through sealing plug, from the openend of shell, stretches out;
Described fuse comprises the Cathode Foil being connected with negative wire coiling and the anode foils of reeling and being connected with positive wire, and described fuse also comprises the insulation electrolytic paper of reel respectively parcel Cathode Foil and anode foils, and described insulation electrolytic paper is separated Cathode Foil and anode foils; On described insulation electrolytic paper, be added with electrolyte;
The magnitude of voltage of described anode foils is 630VF;
The voltage of described Cathode Foil is 5V;
Described electrolytic capacitor capacity is 10 μ F-33 μ F;
Described insulation electrolytic paper adopts compound two-layer insulation electrolytic paper, and density is 70 g/m3, and thickness is 70 μ m;
Described negative wire and positive wire all adopt high temperature to change into lead-in wire;
Described sealing plug adopts 100%IIR micelle material seal plug;
Described shell bottom surface diameter is 13-22mm, and height is 21-35mm;
The composition of described electrolyte comprises:
Main solvent: ethylene glycol 40%-50%;
Complementary solvent: diethylene glycol (DEG) 10%-20%, triethylene glycol 10%-20%, glycerol 10%-20%, gamma-hydroxybutyric acid lactone 10%-20%;
Main solute: dodecandioic acid ammonium 3%-10%, 8-vaccenic acid bisgallic acid ammonium 3%-10%;
Nitre hydrogen agent: ortho-nitroanisole 0.1%-0.9%.
2. 450V electrolytic capacitor according to claim 1, is characterized in that, described 450V electrolytic capacitor capacity is 10 μ F, and described shell bottom surface diameter is 13mm, and height is 21mm.
3. 450V electrolytic capacitor according to claim 1, is characterized in that, described 450V electrolytic capacitor capacity is 15 μ F, and described shell bottom surface diameter is 16mm, and height is 25mm.
4. 450V electrolytic capacitor according to claim 1, is characterized in that, described 450V electrolytic capacitor capacity is 22 μ F, and described shell bottom surface diameter is 18mm, and height is 32mm.
5. 450V electrolytic capacitor according to claim 1, is characterized in that, described 450V electrolytic capacitor capacity is 33 μ F, and described shell bottom surface diameter is 22mm, and height is 35mm.
6. a production technology for the 450V electrolytic capacitor as described in claim 1-5 any one, is characterized in that, comprises the following steps:
A. make Cathode Foil and anode foils: galvano-cautery Cathode Foil and anode foils, after galvano-cautery, be oxidized Cathode Foil and anode foils, in Cathode Foil and anode foils surface, form oxide-film;
B. cutting Cathode Foil, anode foils and insulation electrolytic paper, be connected with Cathode Foil lead-in wire respectively with anode foils, forms negative wire and positive wire, and insulation electrolytic paper and Cathode Foil, anode foils are reeled;
C. add electrolyte, electrolyte is impregnated on insulation electrolytic paper;
D. carry out last assembling, crimping, charging, burn-in test and parameter detecting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310728425.XA CN103680983B (en) | 2013-12-25 | 2013-12-25 | A kind of 450V electrolysis condenser and production technology thereof |
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| CN201310728425.XA CN103680983B (en) | 2013-12-25 | 2013-12-25 | A kind of 450V electrolysis condenser and production technology thereof |
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| CN103680983B CN103680983B (en) | 2017-01-04 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707710A (en) * | 2005-04-11 | 2005-12-14 | 万裕三信电子(东莞)有限公司 | Aluminium electrolytic capacitor and electrolyte |
| CN1744247A (en) * | 2004-08-30 | 2006-03-08 | 广东风华高新科技股份有限公司 | Aluminium electrolytic capacitor working electrolyte and capacitor obtained thereof |
| JP2008098494A (en) * | 2006-10-13 | 2008-04-24 | Matsushita Electric Ind Co Ltd | Aluminum electrolytic capacitor |
| CN101866752A (en) * | 2010-06-23 | 2010-10-20 | 深圳清华大学研究院 | Electrolyte for driving ultrahigh voltage large-sized aluminium electrolytic capacitor and solute thereof |
-
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- 2013-12-25 CN CN201310728425.XA patent/CN103680983B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1744247A (en) * | 2004-08-30 | 2006-03-08 | 广东风华高新科技股份有限公司 | Aluminium electrolytic capacitor working electrolyte and capacitor obtained thereof |
| CN1707710A (en) * | 2005-04-11 | 2005-12-14 | 万裕三信电子(东莞)有限公司 | Aluminium electrolytic capacitor and electrolyte |
| JP2008098494A (en) * | 2006-10-13 | 2008-04-24 | Matsushita Electric Ind Co Ltd | Aluminum electrolytic capacitor |
| CN101866752A (en) * | 2010-06-23 | 2010-10-20 | 深圳清华大学研究院 | Electrolyte for driving ultrahigh voltage large-sized aluminium electrolytic capacitor and solute thereof |
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