WO2012105496A1 - Condensateur à film - Google Patents
Condensateur à film Download PDFInfo
- Publication number
- WO2012105496A1 WO2012105496A1 PCT/JP2012/051990 JP2012051990W WO2012105496A1 WO 2012105496 A1 WO2012105496 A1 WO 2012105496A1 JP 2012051990 W JP2012051990 W JP 2012051990W WO 2012105496 A1 WO2012105496 A1 WO 2012105496A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylindrical case
- capacitor
- concave terminal
- insulating resin
- terminal cover
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 99
- 229920005989 resin Polymers 0.000 claims abstract description 74
- 239000011347 resin Substances 0.000 claims abstract description 74
- 229910052751 metal Inorganic materials 0.000 abstract description 26
- 239000002184 metal Substances 0.000 abstract description 26
- 239000010408 film Substances 0.000 description 23
- -1 polypropylene Polymers 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 description 8
- 239000005020 polyethylene terephthalate Substances 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920001955 polyphenylene ether Polymers 0.000 description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229930040373 Paraformaldehyde Natural products 0.000 description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000011104 metalized film Substances 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 229920006324 polyoxymethylene Polymers 0.000 description 4
- 229920006389 polyphenyl polymer Polymers 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 239000004840 adhesive resin Substances 0.000 description 3
- 229920006223 adhesive resin Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000011888 foil 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
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-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
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
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
Definitions
- the present invention relates to a film capacitor.
- the present invention relates to a film capacitor using a plurality of capacitor elements.
- a film capacitor is formed by depositing aluminum or zinc on a dielectric film such as PP (polypropylene), PET (polyethylene terephthalate) or PS (polystyrene) to form an electrode, and laminating or winding this to form a capacitor element.
- a dielectric film such as PP (polypropylene), PET (polyethylene terephthalate) or PS (polystyrene)
- the aluminum foil electrode was laminated
- a metallicon electrode formed by metal spraying is applied to both ends of the capacitor element thus formed, a lead wire is welded or soldered to the metallicon electrode, and a terminal fitting is attached to the tip of the lead wire.
- the insulating resin was poured into the container, and the insulating resin was filled in the capacitor element and the lead wire portion.
- large-capacity film capacitors used for vehicles, rolling mills, industrial equipment such as DC power transmission, power factor improvement, etc. use a plurality of capacitor elements, and externally extract the metallicon electrodes on the end faces of these capacitor elements. After being connected in parallel with terminals and housed in a container having an open top surface, the container was filled with an insulating resin.
- Patent Document 1 discloses that an insulating adhesive resin tape is wound around the outer peripheral portion of the capacitor element or After covering with a heat shrink resin tube, connect it in parallel, connect it in parallel with the external lead terminal, and then insulate the inside of the concave terminal cover with insulating resin so that both ends of the capacitor element are hidden together with a pair of concave terminal covers.
- a film capacitor is described which is provided with a pair of insulating plates on both ends of the concave terminal cover to form a column.
- an insulating adhesive resin tape is wound around the outer periphery of the side surface of the capacitor element as in Patent Document 1, or a heat shrink resin tube is provided.
- the capacitor element expands and contracts depending on the environment used at a high temperature and a low temperature, and the adhesive resin tape is displaced to reduce the adhesive force. Therefore, the moisture resistance tends to be reduced.
- the capacitor element may be tightened more than necessary due to heat shrink, and the electrode spacing in the capacitor element may be increased.
- the insulation resistance deteriorates due to pressure reduction or, in some cases, folding.
- Patent Document 1 in order to maintain a distance between a pair of concave terminal covers, when a pair of insulating plates are provided at both ends of the concave terminal cover to form a support, a support is provided at both ends as a capacitor. Since there is only a small, there is a structural restriction in strength, and it is difficult to increase the size.
- the present invention provides the following film capacitor.
- a plurality of capacitor elements provided with metallicon electrodes at both ends are accommodated in a cylindrical case with both ends open and arranged in parallel, and the metallicon electrodes are connected in parallel with external lead terminals, and both end portions of the cylindrical case
- a plurality of capacitor elements provided with metallicon electrodes at both ends are accommodated in a cylindrical case with both ends open and arranged in parallel, and the metallicon electrodes are connected in parallel with external lead terminals, and both ends of the cylindrical case
- the film capacitor according to (4), wherein the notch or the through-hole has a narrower opening toward the center side in the length direction of the cylindrical case.
- the structure of the present invention can provide a film capacitor excellent in moisture resistance, insulation resistance and strength in providing a large-capacity capacitor having a plurality of capacitor elements in a small size and light weight.
- a set of metallized films in which a metal vapor deposition electrode is provided on the surface of a dielectric film such as PP (polypropylene), PET (polyethylene terephthalate), PS (polystyrene), etc. the metal surfaces do not overlap.
- a metal vapor deposition electrode is provided on the surface of a dielectric film such as PP (polypropylene), PET (polyethylene terephthalate), PS (polystyrene), etc.
- a metallicon electrode generally used for a film capacitor can be used, and is made of a metal or an alloy such as copper, zinc, aluminum, tin, or solder, and is formed by thermal spraying. In some cases, the surface of the metallicon electrode may be plated.
- the present invention is not limited to this, but metallization with metal vapor deposition electrodes formed on both sides It may be a capacitor element produced by stacking and winding a film and a dielectric film on which no metal vapor deposition electrode is formed.
- the cylindrical case described in the present invention is a cylindrical body that is open at both ends, and accommodates a capacitor element therein and protects it in terms of weather resistance and strength.
- a cutout portion or a through hole filled with the following insulating resin may be provided on at least one side of the side surface of the end portion of the cylindrical case.
- the notch or the through hole provided in the cylindrical case is provided on the side surface of the end of the cylindrical case as a means for passing the insulating resin shown below. .
- the shape is formed of a notch or a through hole, and is hidden by an insulating resin filling the inside of the concave terminal cover shown below. By doing so, the insulating resin is also filled in the insulating resin inlet. It is preferable that the number of notches or through-holes is so large that the strength of the cylindrical case does not decrease, because the insulating resin easily enters the cylindrical case.
- the width of the notch or the diameter of the through hole is increased or decreased according to the diameter of the cylindrical case, which is about 1 mm to 20 mm. Moreover, it is preferable that the shape of the notch or the through hole has a narrow opening toward the center in the length direction of the cylindrical case.
- the capacitor element to be accommodated is accommodated so that both ends provided with the metallicon electrodes are the open ends of the cylindrical case.
- the gap between the cylindrical case and the capacitor element after the housing is preferably as narrow as possible in terms of heat transfer.
- resin molded products such as PET (polyethylene terephthalate), PPS (polyphenylene sulfide), PPE (polyphenylene ether) PBT (polybutylene terephthalate), POM (polyoxymethylene), PPO (polyphenyl oxide), etc.
- a vacuum resin molded product such as polyvinyl chloride or polycarbonate, a metal such as aluminum, iron or stainless steel, or a laminate of resin and metal. You don't have to worry about this. However, the adhesion at the resin / resin interface is often greater than the adhesion at the metal / resin interface, and in this respect, a resin molded product is preferable.
- the metal portion does not contact the metallicon electrode or the external lead terminal.
- the thickness is 0.3 mm to 10 mm, preferably about 1 mm to 5 mm for a resin-based material, and 0.2 mm to 5 mm, preferably about 0.3 to 3 mm for a metal-based material. Getting worse. If it is thick, the heat dissipation / cooling performance or small size / lightness of the capacitor element will deteriorate.
- an uneven surface may be provided on the external surface, or a material with good heat dissipation may be provided on the external surface.
- a material with good heat dissipation a radiation type is preferable to a conduction type.
- the concave terminal cover described in the present invention covers both ends so that the end portion of the cylindrical case containing the capacitor elements is hidden.
- the cylindrical cases each containing a plurality of capacitor elements are arranged in parallel, Connect in parallel at the lead-out terminals and cover both ends so that both ends of the cylindrical case are hidden together.
- Materials include resin molded products such as PET (polyethylene terephthalate), PPS (polyphenylene sulfide), PPE (polyphenylene ether) PBT (polybutylene terephthalate), POM (polyoxymethylene), PPO (polyphenyl oxide), or polychlorinated.
- Vacuum resin molded products such as vinyl and polycarbonate, such as aluminum, iron and stainless steel, or a laminate of resin and metal. You don't have to worry about this. Moreover, you may reinforce with fillers, such as glass fiber. In the case of a laminate of a resin and a metal or a metal, it is necessary to have a structure in which the metal portion does not contact the metallicon electrode or the external lead terminal.
- the external lead terminal described in the present invention is connected to the metallicon electrode of the capacitor element at one end and connected to the outside of the capacitor at the other end, and can be deformed such as a metal foil, thin plate, or wire, solder connection, welding Anything that can be pressed can be used without limitation.
- a foil-shaped metal plate In the case of a thin plate, compared to a linear lead wire that can be bent in any direction, a foil-shaped metal plate is easy to bend in the thickness direction, but is difficult to deform in the width direction, and it is easy to fix the position in a bent state. Therefore, the external lead terminal does not fluctuate and the external lead terminals having different potentials do not cross each other. Moreover, the allowable current value itself is higher for the foil-shaped terminal than for the lead wire terminal. Further, unlike a lead wire having a round cross section, the thickness of a foil-like metal plate is small, so that the thickness of a soldered portion can be reduced, which is advantageous for downsizing of a capacitor.
- the insulating resin described in the present invention is an insulating resin for filling the inner side of the concave terminal cover or the inner side of the cylindrical case, and examples thereof include insulating epoxy, urethane, and silicon resin. Good. Moreover, what mixed the filler etc. in the said resin is also preferable.
- the filler hydroxides such as silicon, titanium, aluminum, calcium, zirconium, and magnesium, oxides, carbides, nitrides, and composites thereof can be used. If necessary, a flame retardant and an antioxidant may be added. In particular, it is preferable that the heat dissipation is large.
- the insulating resin is filled in the inside of the concave terminal cover or in addition to the inside of the cylindrical case.
- it also includes a gap portion in the cylindrical case up to the same filling surface as the filling surface inside the concave terminal cover.
- gap parts in the cylindrical case are filled with an insulating resin is also included. Accordingly, it is preferable that the metallicon electrode part and the external lead terminal part in the vicinity thereof are covered with an insulating resin.
- the cylindrical case is fixed by fixing the concave terminal cover with a convex portion along the outer circumference of the cylindrical case, or by attaching a concave groove along the outer dimension of the cylindrical case. Means are mentioned.
- the cylindrical case and the capacitor element accommodated therein are fixed by filling the cylindrical case with an insulating resin inside or in addition to the concave terminal cover. be able to.
- a collar is provided on the outer side surface of the end of the cylindrical case, it becomes a wedge shape, and the cylindrical case can be more strongly fixed to the insulating resin filled.
- the thickness of the cylindrical case is increased by the flange portion, it is possible to fix the screw from the concave terminal cover side.
- FIG. 1 shows a longitudinal sectional view of a capacitor showing one embodiment of the present invention.
- three capacitor elements 2 each provided with a metallicon electrode 1 at both ends are arranged side by side in parallel.
- Each capacitor element 2 has a cylindrical case 3 with both ends open, and the metallicon electrode 1 is opened.
- Each is accommodated so as to be exposed at both ends.
- the metallicon electrodes 1 are connected in parallel by the external lead terminals 4 separately on the upper and lower sides.
- the external lead terminals 4 are connected between the capacitor elements 2 by recesses 5 provided on both side surfaces of the cylindrical case 3 so that the capacitor elements 2 can be easily connected to each other and the metallized electrode 1 can be easily connected. is doing.
- the upper and lower open ends of the cylindrical case 3 are collectively covered with a pair of concave terminal covers 6 so that the concave side faces inward, and the inner side of the concave terminal cover 6 is filled with an insulating resin 7. .
- the filling range of the concave terminal cover 6 is such that the inside of the concave terminal cover 6 and the gap in the cylindrical case 3 up to the filling surface as much as the filling surface inside the concave terminal cover 6 are filled.
- FIG. 1A the filling range of the concave terminal cover 6 is such that the inside of the concave terminal cover 6 and the gap in the cylindrical case 3 up to the filling surface as much as the filling surface inside the concave terminal cover 6 are filled.
- the inside of the concave terminal cover 6 and the gap portion in the cylindrical case 3 are filled.
- the inside of the cylindrical case 3 is filled with the insulating resin 7 by the dent portions 5 provided on the side surfaces of both ends of the cylindrical case 3, and is cured and solidified by heating or the like.
- FIG. 2 is a cross-sectional view in the longitudinal direction of the capacitor showing the embodiment of the present invention.
- the difference from FIG. 1 is that a column 8 is additionally provided between the concave terminal covers 6 in the components shown in FIG.
- the support column 8 is provided between the capacitor elements 2 or around the capacitor.
- it is preferable in terms of fixing that the support column 8 is screwed with a screw 9 or the like from the concave terminal cover 6 side.
- the support 8 can help to temporarily fix the shape of the capacitor until the liquid insulating resin 7 is solidified. Further, after the liquid insulating resin 7 is solidified, the shape of the capacitor can be useful for maintaining the strength.
- the support column 8 is increased more than necessary, the shape of the capacitor is increased correspondingly, and the gap between the cylindrical cases 3 is reduced, which is not preferable in terms of heat dissipation.
- FIG. 3 is a cross-sectional view in the width direction of the capacitor showing the embodiment of the present invention.
- FIG. 3 shows a cross-sectional view perpendicular to the direction of FIG. 3A shows a method of fitting into the concave groove 10
- FIG. 3B shows a method of fitting into the convex portion 11
- FIG. 3C shows a method of providing a raised bottom. Insulating resin 7 to be filled is omitted.
- 3 (b) is a method of fitting the concave terminal cover 6 with the convex portion 11 along the outer periphery of the dimension of the cylindrical case 3.
- the convex part 11 may be partial in addition to the entire circumference.
- 3A or 3B when the end portion of the cylindrical case 3 contacts the concave terminal cover 6, both side surfaces of the cylindrical case 3 are arranged so that the external lead terminal 4 can be easily routed. It is preferable to provide a space such as a recess 5 through which the external lead terminal 4 passes.
- FIG. 4 shows a cross-sectional view of the capacitor in the width direction and a perspective view of the cylindrical case 3 showing the second embodiment of the present invention.
- the left figure shows a sectional view of the capacitor
- the right figure shows a perspective view in which the cylindrical case 3 of the capacitor is extracted and rotated 90 degrees in the length axis direction.
- 4A shows a case where a notch 13 is provided at the end of the cylindrical case 3
- FIG. 4B shows a case where a through hole 14 is provided at the end of the cylindrical case 3.
- FIG. 4 (a) or 4 (b) may be provided with a plurality of recesses 5 as appropriate in the cylindrical case 3, but in this figure, only one location is arbitrarily shown. Yes.
- the capacitor element 2 provided with the metallicon electrodes 1 at both ends is accommodated in a cylindrical case 3 with both ends open so that the metallicon electrodes 1 are exposed at both open ends.
- the metallicon electrode 1 is connected to the upper and lower terminals by external lead terminals 4 separately.
- the external lead terminal 4 is provided with a recessed portion 5 on the side surface of the end portion of the cylindrical case 3 so that it can be easily led out from the cylindrical case 3.
- the drawing direction of the external lead terminal 4 is different from that shown in FIG. 1 or FIG. 2 and is drawn in the width direction instead of the length direction of the capacitor.
- the sets of the capacitor element 2 and the cylindrical case 3 are arranged in parallel on the back side and the front side in the same manner, and are connected to the upper and lower sides separately by the external lead terminals 4. It is summarized in.
- the upper and lower open ends of the cylindrical case 3 are collectively covered with a pair of concave terminal covers 6 so that the concave side faces inward, and the inner side of the concave terminal cover 6 is filled with an insulating resin 7. .
- the filling portion of the insulating resin 7 inside the cylindrical case 3 is the gap portion in the cylindrical case 3 from the inner side of the concave terminal cover 6 to the same filling surface as the inner filling surface of the concave terminal cover 6.
- 4A a notch 13 is provided at the lower end of the cylindrical case 3, and a through hole 14 is provided at the lower end side of the cylindrical case 3 in FIG. 4B. .
- the insulating resin 7 is easily filled into the cylindrical case 3 by the notch 13 or the through hole 14.
- the cutout portion 13 and the through hole 14 are not necessarily provided in the structure of the cylindrical case 3.
- the concave terminal cover 6a side is thermoset by resin filling and then inverted 180 degrees, and the other concave terminal cover 6b is covered with the cylindrical case 3, the cylindrical case 3 is hermetically sealed. Therefore, the replacement of the internal air and the insulating resin 7 is not easy.
- the notch part 13 and the through hole 14 provided in the cylindrical case 3 play a role as exhaust passage in the sealed space and a passage for injecting the insulating resin 7. Therefore, vacuum injection is preferable on the concave terminal cover 6b side to be filled with resin later.
- FIG. 5 shows another cylindrical case 3 of the capacitor showing the embodiment of the present invention.
- FIG. 5A shows a cylindrical case 3 provided with a notch 3 having a triangular cross-section
- FIG. 5B shows a through-hole 14 with a circular cross-section having a different diameter.
- the notch 13 is a rectangular parallelepiped as in the case of FIG. 4A
- the cutting process is performed by a mold.
- cutting with a blade or drilling can be performed in the through hole 14 to easily cope with dimensional changes.
- the notch 13 or the through hole 14 provided at the end of the cylindrical case 3 has a narrow opening toward the central portion in the length direction of the cylindrical case 3.
- the opening of the insulating resin 7 becomes wider toward the end portion in the length direction of the cylindrical case 3, the initial filling speed is high in the gap portion in the cylindrical case 3, and the cylindrical case 3 Since the frontage becomes narrower toward the central portion in the length direction, it is easy to block moisture entering from the filling surface in a high humidity environment after filling with the insulating resin 7. 5 may be provided as appropriate in the cylindrical case 3, but in this figure, only one location is arbitrarily shown.
- FIG. 6 shows an example of the manufacturing method of the present invention.
- three capacitor elements 2 provided with metallicon electrodes 1 at both ends are arranged side by side in parallel.
- the notch parts 13a and 13b are provided in the both ends of the cylindrical case 3 which both ends opened, respectively.
- each capacitor element 2 is accommodated in the cylindrical case 3 so that the metallicon electrode 1 is exposed at both open ends.
- the metallicon electrodes 1 are connected in parallel by the external lead terminals 4a and 4b separately on the upper and lower sides.
- FIG. 6C the lower open end of the cylindrical case 3 is collectively covered with the concave terminal cover 6a so that the concave side faces inward.
- the inside of the concave terminal cover 6a is filled with the insulating resin 7 so that the notch 13a is hidden, and the insulating resin 7 is cured.
- it is rotated 180 degrees so that the concave terminal cover 6a is on the upper side.
- the lower open end of the cylindrical case 3 is collectively covered with the concave terminal cover 6b so that the concave side faces inward.
- the inside of the concave terminal cover 6b is filled with the insulating resin 7 so that the notch 13b is hidden, and the insulating resin 7 is cured.
- a capacitor with a rated voltage of 1100 V and a capacitance of 1600 ⁇ F was produced.
- the capacitor element has a diameter of a single-sided metallized film with a metal-deposited electrode on the surface of a 5 ⁇ m thick polypropylene film dielectric film and a similar metallized film that are stacked in layers so that the metal surfaces do not overlap.
- the metallicon electrodes were connected in parallel by external lead terminals that were tin-plated on a copper foil having a thickness of 200 ⁇ m and a width of 29 mm separately on the upper and lower sides.
- the lower open end of the cylindrical case was covered with a concave terminal cover made of polyphenylene ether having a thickness of 3.5 mm and a depth of 21.5 mm so that the concave side faces inward.
- the inside of the concave terminal cover is filled with an insulating urethane resin so that the notch is hidden, and the resin is thermoset.
- it is rotated 180 degrees so that the concave terminal cover is on the upper side.
- the lower open end of the cylindrical case was collectively covered with a concave terminal cover so that the concave side faced inward.
- the inside of the concave terminal cover is filled with an insulating urethane resin, and the resin is thermoset. In filling the insulating resin, vacuum defoaming and vacuum injection treatment were performed.
- the inside of the concave terminal cover was filled with an insulating urethane resin, and after curing the resin, the cylindrical case was fully filled with the same insulating urethane resin and cured in the same manner as in Example 1 except that the resin was cured. .
- the structure of the present invention can provide a film capacitor excellent in moisture resistance, insulation resistance and strength in a large-capacity capacitor having a plurality of capacitor elements.
- the present invention can be used for a large-capacity film capacitor using a plurality of capacitor elements used for industrial equipment such as vehicles, rolling mills, DC power transmission, and power factor improvement, etc. It can also be applied to industrial fields that require small size and light weight.
- DESCRIPTION OF SYMBOLS 1 Metallicon electrode, 2 ... Capacitor element, 3 ... Cylindrical case 4, 4a, 4b ... External extraction terminal, 5 ... Recessed part, 6, 6a, 6b ... Concave terminal cover, 7 ... Insulating resin, 8 ... Support
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
La présente invention a pour objet une structure de stockage capable de conserver des dimensions réduites, un faible poids, une bonne résistance à l'humidité et à la pression afin d'obtenir un condensateur de grande capacité comportant une pluralité d'éléments capacitifs au moyen d'un film muni d'électrodes métalliques déposées en phase vapeur sur la surface d'un film diélectrique. L'invention concerne un condensateur à film dans lequel une pluralité d'éléments capacitifs comprenant des électrodes de métallisation des deux extrémités sont logés dans un boîtier cylindrique et agencés parallèlement, les deux extrémités du boîtier cylindrique étant ouvertes. Les éléments capacitifs sont connectés en parallèle par des bornes de sortie externes. Les deux parties d'extrémité du boîtier cylindrique sont recouvertes d'une paire de capots de bornes concaves de sorte que les deux parties d'extrémité soient recouvertes ensemble. L'intérieur des capots de bornes concaves est rempli d'une résine isolante. Des encoches ou des trous traversants remplis de résine isolante sont ménagés sur au moins une surface d'extrémité du boîtier cylindrique.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201280007075.1A CN103339699B (zh) | 2011-02-01 | 2012-01-30 | 薄膜电容器 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2011019697A JP5111630B2 (ja) | 2011-02-01 | 2011-02-01 | フィルムコンデンサ |
JP2011-019697 | 2011-02-01 | ||
JP2011027059A JP5653242B2 (ja) | 2011-02-10 | 2011-02-10 | フィルムコンデンサ |
JP2011-027059 | 2011-02-10 |
Publications (1)
Publication Number | Publication Date |
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WO2012105496A1 true WO2012105496A1 (fr) | 2012-08-09 |
Family
ID=46602710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/051990 WO2012105496A1 (fr) | 2011-02-01 | 2012-01-30 | Condensateur à film |
Country Status (2)
Country | Link |
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CN (1) | CN103339699B (fr) |
WO (1) | WO2012105496A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2016139778A (ja) * | 2015-01-22 | 2016-08-04 | カルソニックカンセイ株式会社 | コンデンサ構造 |
JP2017191824A (ja) * | 2016-04-12 | 2017-10-19 | ニチコン株式会社 | 金属化フィルムコンデンサおよびその製造方法 |
CN111696785A (zh) * | 2019-03-15 | 2020-09-22 | Tdk株式会社 | 电子部件 |
WO2020201536A1 (fr) * | 2019-04-05 | 2020-10-08 | Valeo Siemens Eautomotive France | Bloc capacitif comprenant une entretoise |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6719409B2 (ja) * | 2017-03-17 | 2020-07-08 | 株式会社キトー | 電動巻上機 |
Citations (2)
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JP2008204982A (ja) * | 2007-02-16 | 2008-09-04 | Matsushita Electric Ind Co Ltd | キャパシタユニット |
JP2009010265A (ja) * | 2007-06-29 | 2009-01-15 | Nichicon Corp | 金属化フィルムコンデンサ |
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JP4338256B2 (ja) * | 1999-04-12 | 2009-10-07 | ニチコン株式会社 | 乾式金属化フィルムコンデンサ |
JP4338259B2 (ja) * | 1999-06-11 | 2009-10-07 | ニチコン株式会社 | 乾式金属化フィルムコンデンサ |
JP2006196678A (ja) * | 2005-01-13 | 2006-07-27 | Toyota Motor Corp | コンデンサ装置 |
JP5162919B2 (ja) * | 2007-02-16 | 2013-03-13 | パナソニック株式会社 | 蓄電ユニット |
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- 2012-01-30 CN CN201280007075.1A patent/CN103339699B/zh active Active
- 2012-01-30 WO PCT/JP2012/051990 patent/WO2012105496A1/fr active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008204982A (ja) * | 2007-02-16 | 2008-09-04 | Matsushita Electric Ind Co Ltd | キャパシタユニット |
JP2009010265A (ja) * | 2007-06-29 | 2009-01-15 | Nichicon Corp | 金属化フィルムコンデンサ |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016139778A (ja) * | 2015-01-22 | 2016-08-04 | カルソニックカンセイ株式会社 | コンデンサ構造 |
US10062515B2 (en) | 2015-01-22 | 2018-08-28 | Calsonic Kansei Corporation | Capacitor structure |
JP2017191824A (ja) * | 2016-04-12 | 2017-10-19 | ニチコン株式会社 | 金属化フィルムコンデンサおよびその製造方法 |
CN111696785A (zh) * | 2019-03-15 | 2020-09-22 | Tdk株式会社 | 电子部件 |
CN111696785B (zh) * | 2019-03-15 | 2022-03-08 | Tdk株式会社 | 电子部件 |
WO2020201536A1 (fr) * | 2019-04-05 | 2020-10-08 | Valeo Siemens Eautomotive France | Bloc capacitif comprenant une entretoise |
FR3094833A1 (fr) * | 2019-04-05 | 2020-10-09 | Valeo Siemens eAutomotive France | Bloc capacitif comprenant une entretoise |
JP7399186B2 (ja) | 2019-04-05 | 2023-12-15 | ヴァレオ、シーメンス、イーオートモーティブ、フランス | スペーサを備えた容量性ブロックおよび容量性ブロックを組み立てるための方法 |
US11854740B2 (en) | 2019-04-05 | 2023-12-26 | Valeo Siemens Eautomotive France Sas | Capacitor block having a spacer |
Also Published As
Publication number | Publication date |
---|---|
CN103339699B (zh) | 2016-10-05 |
CN103339699A (zh) | 2013-10-02 |
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