CN103339699B - Thin film capacitor - Google Patents
Thin film capacitor Download PDFInfo
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- CN103339699B CN103339699B CN201280007075.1A CN201280007075A CN103339699B CN 103339699 B CN103339699 B CN 103339699B CN 201280007075 A CN201280007075 A CN 201280007075A CN 103339699 B CN103339699 B CN 103339699B
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- 239000003990 capacitor Substances 0.000 title claims abstract description 98
- 239000010409 thin film Substances 0.000 title claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 74
- 239000011347 resin Substances 0.000 claims abstract description 74
- 239000011159 matrix material Substances 0.000 claims abstract description 69
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 238000001883 metal evaporation Methods 0.000 abstract description 6
- 239000011104 metalized film Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 description 21
- 239000002184 metal Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 12
- 239000004721 Polyphenylene oxide Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000008602 contraction Effects 0.000 description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 description 6
- 229920006380 polyphenylene oxide Polymers 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 229920005749 polyurethane resin Polymers 0.000 description 5
- 238000007751 thermal spraying Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 4
- 229920006324 polyoxymethylene Polymers 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- 239000011135 tin Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229920001289 polyvinyl ether Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000000637 aluminium metallisation Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/02—Mountings
- H01G2/04—Mountings specially adapted for mounting on a chassis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Obtaining having in the jumbo capacitor of the multiple capacitors employing the metalized film being provided with metal evaporation electrode on the surface of deielectric-coating, for the purpose of acquisition is able to maintain that small-size light-weight, moisture-proof, voltage endurance.A kind of thin film capacitor is provided, it is arranged side by side in the multiple capacitor elements being provided with metallising electrode on two ends are housed in respectively the barrel-type casing that two ends are decontroled, it is connected in parallel with external connection terminals, in the way of covering in the lump respectively, with a pair matrix terminal, this covers the both ends of above-mentioned barrel-type casing, fill the inner side of matrix terminal cap with insulating resin, at least side of the end sides of above-mentioned barrel-type casing arranges the notch with the filling of above-mentioned insulating resin or through hole.
Description
Technical field
The present invention relates to thin film capacitor.Particularly to the thin film capacitor using multiple capacitor element.
Background technology
Thin film capacitor forms electrode by AM aluminum metallization on the deielectric-coating of PP (polypropylene) and PET (dimethyl ester), PS (polystyrene) etc. or zinc, its lamination or winding are constituted capacitor element, or foil electrode and film together lamination or winding are constituted capacitor element.In the case of evaporation metal, the metallising electrode that enforcement metal thermal spraying (Thermal spraying) is formed on the two ends of such capacitor element being formed, welding or soldering lead-in wire on this metallising electrode, front end mounting terminal joint at lead-in wire is received in a reservoir, inject insulating resin in container, capacitor element and lead portion are filled insulating resin.
Additionally, the jumbo thin film capacitor using in the industry machine of vehicle, rolling mill, direct current transportation etc. and power-factor improvement etc. uses multiple capacitor element, it is connected in parallel the metallising electrode of the end face portion of these capacitor elements with bringing-out, after having in the container of open surface on be contained in, filled in container by insulating resin.
Additionally, in order to by removing said vesse, reduce the insulating resin being filled in container and realize miniaturization, such thin film capacitor has been recorded in patent document 1, it is arranged side by side after the side peripheral part of capacitor element winds the tackifying resin band of insulating properties or coating thermal contraction pitch tube, after being connected in parallel with bringing-out, in the way of to hide the both ends of capacitor element with a pair matrix terminal cap unification, fill the inner side of matrix terminal cap with insulating resin, additionally, in order to keep the interval between a pair matrix terminal cap, the both ends of this matrix terminal cap arrange a pair insulation board as pillar.
Patent document 1: Japanese Unexamined Patent Publication 2000-299245 publication
In order to the jumbo capacitor with multiple capacitor element is manufactured into small-size light-weight, if being formed on capacitor element side peripheral part as described in Patent Document 1 the tackifying resin band of winding insulating properties, or the structure of thermal contraction pitch tube is set, the then environment owing to using under high temperature and low temperature, expand contraction on the capacitor element, tackifying resin band dislocation bonding force declines, and therefore moisture-proof is easily reduced.Additionally, in the case of being thermal contraction pitch tube, if thickening the wall thickness of thermal contraction pitch tube to improve moisture-proof, then have because thermal contraction causes the power of capacitor element of tying tight to exceed the situation of desired value, electrode gap pressurized in generation capacitor element reduces, or generation convolution, the phenomenon that insulating properties deteriorates.
Additionally, as Patent Document 1, in order to keep the interval between a pair matrix terminal cap, in the case of the both ends of this matrix terminal cap arranging a pair insulation board as pillar, because only having pillar on both ends as capacitor, so intensity is by structural restriction, maximizes and be easy to become difficulty.
As solve this problem countermeasure, problem to be solved is: provide miniaturization there is multiple capacitor element jumbo capacitor when, thin film capacitor excellent in terms of moisture-proof, resistance to insulating properties and intensity is provided.
Content of the invention
The present invention is to solve above-mentioned problem, following thin film capacitor is provided.
(1) it is arranged side by side in the multiple capacitor elements being provided with metallising electrode at two ends being housed in the barrel-type casing of both ends open respectively, it is connected in parallel above-mentioned metallising electrode with bringing-out, cover the both ends of above-mentioned barrel-type casing by a pair matrix terminal cap in the way of covering in the lump respectively, fill the inner side of above-mentioned matrix terminal cap with insulating resin.
(2) it is arranged side by side in the multiple capacitor elements being provided with metallising electrode at two ends being housed in the barrel-type casing of both ends open respectively, it is connected in parallel above-mentioned metallising electrode with bringing-out, cover the both ends of above-mentioned barrel-type casing by a pair matrix terminal cap respectively in the way of covering in the lump, filled by insulating resin in inner side and the above-mentioned barrel-type casing of above-mentioned matrix terminal cap.
(3) have for being fixed on above-mentioned barrel-type casing in above-mentioned matrix terminal cap, the thin film capacitor described in above-mentioned (1) or (2) of the fixed cell being arranged in above-mentioned matrix terminal cap.
(4) thin film capacitor described in above-mentioned (2) of the notch being filled with above-mentioned insulating resin or through hole is set at least one side of the end sides of above-mentioned barrel-type casing.
(5) thin film capacitor of above-mentioned (4) that side, the center face width of above-mentioned notch or the length direction towards above-mentioned barrel-type casing for the through hole narrows.
According to the structure of the present invention, provide miniaturization there is multiple capacitor element large value capacitor when, using the teaching of the invention it is possible to provide thin film capacitor excellent in terms of moisture-proof, resistance to insulating properties and intensity.
Brief description
Fig. 1 is the profile of the length direction of the capacitor representing in the 1st embodiment of the present invention.
Fig. 2 is the profile of the length direction of another capacitor representing in the 1st embodiment of the present invention.
Fig. 3 is the profile of the width of the capacitor representing in the 1st embodiment of the present invention.
Fig. 4 is the side view with its barrel-type casing for the profile of the width representing the capacitor representing in the 2nd embodiment of the present invention.
Fig. 5 is the side view of another barrel-type casing representing the capacitor representing in the 2nd embodiment of the present invention.
Fig. 6 is the figure of the example of the manufacture method representing the present invention.
Symbol description
1: metallising electrode；2: capacitor element；3: barrel-type casing；4th, 4a, 4b: bringing-out；5: matrix portion；6th, 6a, 6b: matrix terminal cap；7: insulating resin；8: pillar；9: bolt；10: groove；11: protuberance；12: divide bottom Tu Qi；13rd, 13a, 13b: notch；14: through hole.
Detailed description of the invention
Capacitor element of the present invention is by by PP(polypropylene) and PET(dimethyl ester), PS(polystyrene) etc. deielectric-coating surface on be provided with one group of metallized film of metal evaporation electrode, it is wound around mutually different 2 in the way of metal covering is misaligned, the both ends being wound around form metallising electrode by the method for the metal thermal spraying etc. of zinc etc..
Metallising electrode can use the general electrode using in thin film capacitor, is made up of the metal or alloy of copper, zinc, aluminium, tin, scolding tin etc., is formed by thermal spraying.According to circumstances, it is also possible on the surface of metallising electrode, implement plating.
Additionally, except making in addition to the capacitor element of 2 overlap wrappings of metallized film being formed with metal evaporation electrode in the one side at medium, it is not limited to it, it is also possible to be that overlap wrapping is formed with the metallized film of metal evaporation electrode on two sides, is formed without the deielectric-coating of metal evaporation electrode and the capacitor element made.
Barrel-type casing described in the present invention is the cylindrical body of both ends open, houses capacitor element in inside so that it is have against weather thus high intensity ground protective condenser.
And, at least one side of the end sides of barrel-type casing also can arrange the notch with insulating resin filling shown below or through hole.
In the case of being provided with notch or through hole, the notch being arranged on barrel-type casing or through hole are for the part by insulating resin shown below, are arranged in the end sides of barrel-type casing.Shape is made up of otch or through hole etc., is hidden by the insulating resin filled inside matrix terminal cap shown below.Arranged by such, in insulating resin introducing port, also fill insulating resin.In the quantity of notch or the through hole barrel-type casing that more insulating resins are more easily accessible in the case of the intensity of barrel-type casing is nondecreasing, preferably so.
In addition, the diameter of the width of notch or through hole is from 1mm to 20mm, the diameter according to barrel-type casing increases and decreases.
In addition, the shape of notch or through hole preferably narrows towards the central portion face width of the length direction of barrel-type casing.Thus, when being filled inside matrix terminal cap by insulating resin, initially on the gap in barrel-type casing, filling speed can be quickly, additionally, because side, the center face width towards the length direction of barrel-type casing narrows, so after filling insulating resin, easily blocking the moisture invading from filling surface under high humidity environment.
The capacitor element housing houses in the way of the open end that the two ends being provided with metallising electrode become barrel-type casing.The gap of the barrel-type casing after collecting and capacitor element is more narrow better in terms of heat transfer.
Material as barrel-type casing is PET(dimethyl ester), PPS(polyphenylene sulfide), PPE(polyvinylether), PBT(polybutylene terephthalate (PBT)), POM(polyformaldehyde), PPO(Polyphenylene oxides) etc. synthetic resin, or the metal at vacuum resin products formed, aluminium, iron, stainless steel etc. of polyvinyl chloride, Merlon etc., or the laminated body etc. of resin and metal.But it is not limited to this.Simply the tack of resin/resin boundary surface is mostly big than the tack at metal/resin interface, in this as material preferred resin products formed.In addition, in the case of being synthetic resin, can be reinforced by the packing material of glass fibre etc..In the case of the laminated body being resin and metal or metal, need to be arranged to metal part and metallising electrode or the discontiguous construction of bringing-out.Wall thickness is 0.3mm to 10mm in the case of resin body, preferably from 1m to 5mm about, be 0.2mm to 5mm, preferably about 0.3mm to 3mm in the case of being metal, if thin; against weather or intensity difference.If thickness, the thermal diffusivity of capacitor element, cooling or miniaturization difference.
In addition, in order to improve thermal diffusivity, cooling, concavo-convex processing can be carried out on the outer surface, it is also possible in the good material of outside surface configuration thermal diffusivity.As the good material of thermal diffusivity preferably from conduction type to radial pattern.
Matrix terminal cap of the present invention is to arrange lid from two ends so that the end housing the barrel-type casing of capacitor element hides, it is arranged side by side and house the barrel-type casing of multiple capacitor element respectively, it is connected in parallel with bringing-out, lid is set from two sides so that each unified in the lump of both ends of barrel-type casing is hidden.
PET(dimethyl ester as material), PPS(polyphenylene sulfide), PPE(polyvinylether), PBT(polybutylene terephthalate (PBT)), POM(polyformaldehyde), PPO(Polyphenylene oxides) etc. synthetic resin, or the metal at vacuum resin products formed, aluminium, iron, stainless steel etc. of polyvinyl chloride, Merlon etc., or the laminated body etc. of resin and metal.But it is not limited to this.Alternatively, it is also possible to reinforced by the packing material of glass fibre etc..In the case of the laminated body being resin and metal or metal, need to be arranged to metal part and metallising electrode or the discontiguous construction of bringing-out.
Bringing-out one end of the present invention connects between the metallising electrode of capacitor element, external connection with the other end and capacitor, it is that metal forming, thin plate, or line etc. can deform, soldering connection, welding, crimping etc. can not be used with limiting.
In the case of thin plate, compared with the linear lead-in wire that can bend in which direction, the metallic plate of film shape is easily bent on thickness direction, and be difficult in the direction of the width deform, position in the state of bending is fixing easily, thus, bringing-out will not rock, and bringing-out of different potentials will not intersect.Alternatively, it is also possible to it is high to enumerate permission current value self film shape terminal one side compared with lead terminal.And then, different with the lead-in wire that section is circular, because thickness is thin in the metallic plate of film shape, it is possible to reduce the thickness of scolding tin facies posterior hepatis, also there is this feature favourable in terms of the miniaturization of capacitor.
Insulating resin of the present invention is the resin for filling the insulating properties inside the inner side of matrix terminal cap or barrel-type casing, can enumerate the epoxy resin of polyethylene, polyurethane, silicones etc., but be not limited to this.In addition, it is also fine to be mixed into filler etc. in above-mentioned resin.Hydroxide, oxide, carbide, the nitride such as silicon, titanium, aluminium, calcium, zirconium, magnesium, their compound etc. can be used as filler.If desired, it is also add fire retardant, antioxidant.The big material of particularly preferred thermal diffusivity.
The fill conditions of insulating resin is to fill the inner side of matrix terminal cap or add in above-mentioned barrel-type casing.In the case of filling the inner side of matrix terminal cap, also comprise until the gap in the barrel-type casing in the filling face filling face same degree of the inner side with matrix terminal cap.In addition, in the case of filling in barrel-type casing, also comprise the situation of the gap being stuffed entirely with in this barrel-type casing with insulating resin.
Additionally, it is preferred that with being used insulating resin coated metal spraying plating electrode part and its neighbouring bringing-out subdivision.
The fixing means of barrel-type casing can be set forth in matrix terminal cap the method that protuberance seals that arranges along the periphery of the size of barrel-type casing, or arranges the embedded method etc. of groove along the appearance and size of barrel-type casing.
Even if in addition, barrel-type casing does not directly contact with matrix terminal cap, it is also possible to by the inner side of matrix terminal cap or add in barrel-type casing filling insulating resin, barrel-type casing and the capacitor element being housed in inside can be fixed.If in addition, arrange hook portion on the end lateral surface of barrel-type casing, becoming linking shape, can be fixed on more strongly on the insulating resin of filling.In addition, because owing to this hook portion causes the wall thickness of barrel-type casing thickening, so can also tight a bolt from matrix terminal cap side.
Hereinafter, embodiments of the present invention are described with reference to the accompanying drawings.
＜ the 1st embodiment ＞
Fig. 1 represents the profile of the length direction of the capacitor of the 1st embodiment of the present invention.In FIG, the capacitor element 2 being provided with metallising electrode 1 by 3 at two ends is arranged side by side sidewards, and respective capacitor element 2 houses in the barrel-type casing 3 of both ends open in the way of metallising electrode 1 exposes on the two ends of this opening respectively.
In addition, metallising electrode 1 is connected in parallel by external connection terminals 4 on up and down each.
This bringing-out 4 is linked between capacitor 2 easily to connect between capacitor element 2 and easily connecting with metallising electrode 1 by the recess 5 on the both end sides face being arranged on barrel-type casing 3.
In addition, the open end up and down of barrel-type casing 3 is covered so that recess side is towards inner side by a pair matrix terminal cap 6 lid in the lump, the inner side insulating resin 7 of matrix terminal cap 6 is filled.
The filling scope of matrix terminal cap 6 is in fig. l (a), fill the inner side of matrix terminal cap 6 and the barrel-type casing 3 internal pore part in the filling face until the filling face, inner side and same degree with matrix terminal cap 6, gap in Fig. 1 (b), in the inner side of filling matrix terminal cap 6 and barrel-type casing 3.Recess 5 on the internal both end sides face by being arranged on barrel-type casing 3 of barrel-type casing 3, fills insulating resin 7 and heat hardening is fixed.
Fig. 2 represents the profile of the length direction of the capacitor of embodiments of the present invention.With the difference of Fig. 1 is to add between matrix terminal cap 6 on the constituent part of Fig. 1 to arrange pillar 8.
Pillar 8 is arranged between capacitor element 2 or the periphery of capacitor.Additionally, it is desirable that pillar 8 is being tightened fixing by bolt 9 grade from matrix terminal cap 6 side.Owing to there being pillar 8, it is thus possible to play until the insulating resin 7 of liquid solidifies, the effect of the shape of interim fixed capacity device.In addition, after the insulating resin 7 of liquid solidifies, the effect of the form strength maintaining capacitor can be played.But if it exceeds need ground to increase pillar 8, then the shape of capacitor correspondingly becomes big, and additionally the gap turn narrow between barrel-type casing 3 is not intended to so on this point of thermal diffusivity.
Fig. 3 represents the profile of the width of the capacitor of embodiments of the present invention.Fig. 3 represents the profile that the direction with Fig. 1 or 2 is right angle orientation.
Fig. 3 (a) represents the method for embedded groove 10, and Fig. 3 (b) represents the method for embedded protuberance 11, and Fig. 3 (c) represents the method arranging the protruding end.In addition, the insulating resin 7 filled omits at this.
The embedding grammar of Fig. 3 (a) is to arrange groove 10 in matrix terminal cap 6 and embed barrel-type casing 3, and embedded position also can be local in addition to whole peripheries.The method of local is readily available the intensity of matrix terminal cap 6.
The periphery of the size along barrel-type casing 3 for the embedding grammar of Fig. 3 (b) arranges protuberance 11 in matrix terminal cap 6 and seals.Protuberance 11 is in addition to whole peripheries, it is also possible to be local.In the embedding grammar of Fig. 3 (a) or Fig. 3 (b), in the case that the end of barrel-type casing 3 contacts with matrix terminal cap 6, preferably on the both end sides face of barrel-type casing 3, the space of recess 5 grade that bringing-out 4 passes through is set so that bringing-out 4 is easily drawn.
The method of the protruding end of Fig. 3 (c) is in the embedding grammar of Fig. 3 (b), 12 are divided if preferably arranged on barrel-type casing 3 bottom protruding, divide on 12 bottom the ends contact of barrel-type casing 3 is protruding, then do not need to arrange the space of recess 5 grade that external contact terminal 4 passes through on the both end sides face of barrel-type casing 3.
The manufacture method of the present invention because with the 2nd embodiment in addition to following part identical, so illustrating afterwards with Fig. 6.
In the present embodiment, do not have notch 13b this point different with the method that the 2nd embodiment represents.
＜ the 2nd embodiment ＞
Fig. 4 represents the profile of the width of the capacitor of the 2nd embodiment of the present invention and the side view of its barrel-type casing 3.Left figure represents the profile of capacitor, and right figure represents the barrel-type casing 3 extracting this capacitor out, rotates the side view of 90 degree on long axis direction.In addition, Fig. 4 (a) represents arranges notch 13 on the end of barrel-type casing 3, Fig. 4 (b) represents the situation arranging through hole 14 on the end of barrel-type casing 3.
And, the recess 5 shown in right figure of Fig. 4 (a) or (b) can arrange multiple in barrel-type casing 3 aptly, but represent at this figure and be only arbitrarily arranged on a position.
It is housed on two ends the capacitor element 2 being provided with metallising electrode 1 in the diagram in the way of metallising electrode 1 exposes on its open two ends on the barrel-type casing 3 of both ends open.
In addition, metallising electrode 1 upper and lower side each on bringing-out 4 connect.
These bringing-out 4 arrange recess 5 in the end sides of barrel-type casing 3, easily guide outside from barrel-type casing 3.
And, the lead direction of bringing-out 4 is different with Fig. 1 or Fig. 2, is not the length direction of capacitor, but draws in the transverse direction.
In the diagram, although omit diagram, but the group of be similarly arranged side by side on inner side and side, front capacitor element 2 and barrel-type casing 3, upper and lower side is connected by bringing-out 4 respectively, for arranging up and down and respectively.
In addition, the open end up and down of barrel-type casing 3 in the lump with a pair matrix terminal cap 6 by recess lateral lid lid in the way of inner side, the inner side insulating resin 7 of recess terminal cap 6 is filled.
In the diagram, filling partly in the inner side of matrix terminal cap 6 of the insulating resin 7 of the inside of barrel-type casing 3, fill until the internal pore part of barrel-type casing 3 in the filling face filling face same degree of inner side with matrix terminal cap 6, and the gap portion of the capacitor element 2 in barrel-type casing 3 and barrel-type casing 3 is also filled up completely with and excellent in terms of moisture-proof and intensity.
In addition, in fig. 4 (a), the end of the downside of barrel-type casing 3 arranges notch 13, through hole 14 is set in figure 4 (b) in the end sides of the downside of barrel-type casing 3.By notch 13 or through hole 14, it is internal that insulating resin 7 is easier to be filled into barrel-type casing 3.
And, in the matrix terminal cap 6a side that first resin is filled because a side of barrel-type casing 3 decontrols, must be provided with notch 13 or through hole 14 so may not be on the construction of barrel-type casing 3.But, if this matrix terminal cap 6a side resin is filled and rotates backward 180 degree after thermmohardening, cover barrel-type casing 3 by matrix terminal cap 6b of the opposing party, because becoming air-tight state in barrel-type casing 3, so the replacing of inner air and insulating resin 7 becomes to be not easy.The effect of the path that exhaust that the notch 13 being now arranged on barrel-type casing 3 and through hole 14 play in confined space, insulating resin 7 inject.Therefore, the matrix terminal cap 6b side hereafter carrying out resin filling preferably carries out vacuum injection.
Fig. 5 represents another barrel-type casing 3 of the capacitor of embodiments of the present invention.Fig. 5 (a) expression arranges the notch 3 that section is triangle, and Fig. 5 (b) represents the barrel-type casing 3 arranging the nonoverlapping through hole 14 of the different circle of profile diameter.As the situation of Fig. 4 (a), in the case that notch 13 is cuboid, use the cut-out processing of model, but the situation of figure as right in Fig. 5 (a), in the notch 13 of triangle, being processed by Tool in Cutting, additionally can carrying out Drilling operation in through hole 14, change in size is easily tackled.
In addition, no matter which kind of, the central part face width of the notch 13 being all provided on the end of barrel-type casing 3 or the length direction towards barrel-type casing 3 for the through hole 14 narrows.
According to this construction, insulating resin 7 broadens because of the end face width of the length direction towards barrel-type casing 3, so initial fill velocity is fast in barrel-type casing 3 internal pore part, because the central portion face width towards the length direction of barrel-type casing 3 narrows, so after filling insulating resin 7, in high humidity environment, easily block from the moisture filling surface intrusion.
And, the recess 5 shown in Fig. 5 can arrange multiple in barrel-type casing 3 aptly, but can only arbitrarily arrange at 1 in detail in this figure.
Fig. 6 represents a case of the preparation method of the present invention.
First, as shown in Figure 6 (a), the capacitor element 2 being provided with metallising electrode 1 by 3 on two ends arranges laterally side by side.
Then, as shown in Figure 6 (b), the two ends of the barrel-type casing 3 of both ends open are respectively provided with notch 13a, 13b.Hereinafter, barrel-type casing 3 houses each capacitor element 2 respectively so that metallising electrode 1 exposes on its open two ends.Then, metallising electrode 1 is being connected up and down respectively side by side with bringing-out 4a, 4b.
Hereinafter, as shown in Figure 6 (c), the open end, downside of barrel-type casing 3 is covered by matrix terminal cap 6a so that matrix side is towards inner side in the lump.
Hereinafter, fill the inner side of matrix terminal cap 6a in the way of hiding notch 13a with insulating resin 7, harden insulating resin 7.Then, matrix terminal cap 6a rotates 180 degree to become upside.
Then, as shown in Fig. 6 (d), the open end, downside of barrel-type casing 3 is covered by matrix terminal cap 6b so that matrix side is towards inner side in the lump.
Hereinafter, fill the inner side of matrix terminal cap 6b in the way of hiding notch 13a with insulating resin 7, harden insulating resin 7.
Embodiment 1
Make rated voltage 1100V, the capacitor of static capacity 1600 μ F.
Capacitor element is on the surface of 5 μm of polyacrylic deielectric-coating of thickness, by be provided with the one-sided metallic film of metal evaporation electrode with and the metalized film as it in the way of metal covering is misaligned differently from each other overlapping with two, it is wound in diameter 100.5mm, the both ends being wound around form thickness 0.6mm metallising electrode by the thermal spraying of zinc metal.
Then the capacitor element of 3 similar shapes is arranged laterally side by side, on the open internal diameter 102mm of Polyphenylene oxides, the barrel-type casing of thickness 2mm, in the way of metallising electrode exposes on its open two ends, house each capacitor element two ends respectively.
Then, by thickness 200 μm, the Copper Foil of width 29mm has carried out tin plating external connection terminals metallising electrode has been connected in parallel up and down respectively.
Then, in the lump with the thickness 3.5mm of polyvinylether, the matrix terminal cap of degree of depth 21.5mm, by recess side towards the open end, downside covering barrel-type casing in the way of inner side.
Then, in the way of notch is hidden, the inner side of matrix terminal cap and the thermmohardening carrying out resin are filled with the polyurethane resin of insulating properties.Then, matrix terminal cap rotates 180 degree in the way of becoming upside.
Then, matrix terminal cap rotates 180 degree in the way of becoming upside.Then, in the lump by matrix terminal cap by recess side towards the open end, downside covering barrel-type casing in the way of inner side.
Then, the inner side of matrix terminal cap the thermmohardening carrying out resin are filled with the polyurethane resin of insulating properties.Carry out vacuum defoamation, vacuum injection process in the filling of insulating resin.
Embodiment 2
Prepare the internal diameter 102mm of the Polyphenylene oxides of both ends open, thickness 2mm barrel-type casing, on position, 4, its both ends, respectively notch is processed into base width 10mm, the section triangle of highly 10mm, then, when being filled by insulating resin, in the way of hiding notch, fill the inner side of matrix terminal cap the thermmohardening carrying out resin with the polyurethane resin of insulating properties, the same with embodiment 1 in addition.
Embodiment 3
It with the inner side of the polyurethane resin filling matrix terminal cap of insulating properties after the thermmohardening carrying out resin, in barrel-type casing, is stuffed entirely with and carries out the thermmohardening of resin with the polyurethane resin of same insulating properties, the same with embodiment 1 in addition.
Above, the construction according to the present invention, in the jumbo capacitor with multiple capacitor element, using the teaching of the invention it is possible to provide the thin film capacitor of a kind of moisture-proof, resistance to insulating properties and excellent strength.
Thus, the present invention may be used for the jumbo thin film capacitor using multiple capacitor element using in the industry machine of vehicle, rolling mill, direct current transportation etc. and power-factor improvement etc., furthermore it is also possible to be applicable to Large Copacity and minimize light-weighted industrial field.
Claims (5)
1. a thin film capacitor, it is characterised in that:
The multiple capacitor elements being provided with metallising electrode at two ends are housed in two ends respectively
It is arranged side by side in open barrel-type casing, be connected in parallel above-mentioned metallising with bringing-out
Electrode, covers above-mentioned barrel-type casing by a pair matrix terminal cap in the way of covering in the lump respectively
Both ends, fill the inner side of above-mentioned matrix terminal cap with insulating resin,
Between the side peripheral part and the inner peripheral portion of barrel-type casing of capacitor element, there is space,
In this space, until the filling of the inner side with matrix terminal cap from the end side of barrel-type casing
The filling face of face same degree is filled with insulating resin, or fills this space with insulating resin
All.
2. a thin film capacitor, it is characterised in that:
The multiple capacitor elements being provided with metallising electrode at two ends are housed in two ends respectively
It is arranged side by side in open barrel-type casing, be connected in parallel above-mentioned metallising with bringing-out
Electrode, covers the two ends of above-mentioned barrel-type casing in the way of covering in the lump by a pair matrix terminal cap
Portion, is filled in inner side and the above-mentioned barrel-type casing of above-mentioned matrix terminal cap by insulating resin,
Between the side peripheral part and the inner peripheral portion of barrel-type casing of capacitor element, there is space,
In this space, until the filling of the inner side with matrix terminal cap from the end side of barrel-type casing
The filling face of face same degree is filled with insulating resin, or fills this space with insulating resin
All.
3. the thin film capacitor according to claims 1 or 2, it is characterised in that: have
For that above-mentioned barrel-type casing is fixed in above-mentioned matrix terminal cap, be arranged on above-mentioned matrix end
The fixed cell that son covers.
4. thin film capacitor according to claim 2, it is characterised in that: in above-mentioned tubular
The notch being filled with above-mentioned insulating resin is set at least one side of the end sides of housing
Or through hole.
5. thin film capacitor according to claim 4, it is characterised in that: above-mentioned notch
Or side, the center face width of the length direction that through hole is towards above-mentioned barrel-type casing narrows.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-019697 | 2011-02-01 | ||
| JP2011019697A JP5111630B2 (en) | 2011-02-01 | 2011-02-01 | Film capacitor |
| JP2011-027059 | 2011-02-10 | ||
| JP2011027059A JP5653242B2 (en) | 2011-02-10 | 2011-02-10 | Film capacitor |
| PCT/JP2012/051990 WO2012105496A1 (en) | 2011-02-01 | 2012-01-30 | Film capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103339699A CN103339699A (en) | 2013-10-02 |
| CN103339699B true CN103339699B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280007075.1A Active CN103339699B (en) | 2011-02-01 | 2012-01-30 | Thin film capacitor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103339699B (en) |
| WO (1) | WO2012105496A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6347768B2 (en) | 2015-01-22 | 2018-06-27 | カルソニックカンセイ株式会社 | Capacitor structure |
| JP6644983B2 (en) * | 2016-04-12 | 2020-02-12 | ニチコン株式会社 | Metallized film capacitor and method of manufacturing the same |
| JP6719409B2 (en) | 2017-03-17 | 2020-07-08 | 株式会社キトー | Electric hoist |
| JP7338181B2 (en) * | 2019-03-15 | 2023-09-05 | Tdk株式会社 | electronic components |
| FR3094833B1 (en) | 2019-04-05 | 2022-09-09 | Valeo Siemens eAutomotive France | CAPACITIVE BLOCK INCLUDING A SPACER |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4338256B2 (en) * | 1999-04-12 | 2009-10-07 | ニチコン株式会社 | Dry metallized film capacitor |
| JP4338259B2 (en) * | 1999-06-11 | 2009-10-07 | ニチコン株式会社 | Dry metallized film capacitor |
| JP2006196678A (en) * | 2005-01-13 | 2006-07-27 | Toyota Motor Corp | Capacitor device |
| JP2008204982A (en) * | 2007-02-16 | 2008-09-04 | Matsushita Electric Ind Co Ltd | Capacitor unit |
| JP5162919B2 (en) * | 2007-02-16 | 2013-03-13 | パナソニック株式会社 | Power storage unit |
| JP4968788B2 (en) * | 2007-06-29 | 2012-07-04 | ニチコン株式会社 | Metallized film capacitor and manufacturing method thereof |
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2012
- 2012-01-30 WO PCT/JP2012/051990 patent/WO2012105496A1/en active Application Filing
- 2012-01-30 CN CN201280007075.1A patent/CN103339699B/en active Active
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| Publication number | Publication date |
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| CN103339699A (en) | 2013-10-02 |
| WO2012105496A1 (en) | 2012-08-09 |
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