WO2014010569A1 - Condensateur électrolytique - Google Patents
Condensateur électrolytique Download PDFInfo
- Publication number
- WO2014010569A1 WO2014010569A1 PCT/JP2013/068688 JP2013068688W WO2014010569A1 WO 2014010569 A1 WO2014010569 A1 WO 2014010569A1 JP 2013068688 W JP2013068688 W JP 2013068688W WO 2014010569 A1 WO2014010569 A1 WO 2014010569A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat conductive
- meth
- capacitor element
- mass
- acrylate
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 139
- 239000003566 sealing material Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 239000000178 monomer Substances 0.000 claims description 114
- 239000000853 adhesive Substances 0.000 claims description 58
- 230000001070 adhesive effect Effects 0.000 claims description 57
- 239000002245 particle Substances 0.000 claims description 34
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 21
- 239000010410 layer Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 229920000058 polyacrylate Polymers 0.000 claims description 7
- 230000000379 polymerizing effect Effects 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 66
- 239000000203 mixture Substances 0.000 description 66
- -1 polyethylene terephthalate Polymers 0.000 description 40
- 239000003999 initiator Substances 0.000 description 26
- 239000010408 film Substances 0.000 description 22
- 239000003505 polymerization initiator Substances 0.000 description 22
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 18
- 239000012790 adhesive layer Substances 0.000 description 18
- 230000002093 peripheral effect Effects 0.000 description 17
- 229910052757 nitrogen Inorganic materials 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 12
- 229920000139 polyethylene terephthalate Polymers 0.000 description 11
- 239000005020 polyethylene terephthalate Substances 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 238000012719 thermal polymerization Methods 0.000 description 10
- 230000017525 heat dissipation Effects 0.000 description 9
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000013039 cover film Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- 229920006267 polyester film Polymers 0.000 description 5
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- SBVKVAIECGDBTC-UHFFFAOYSA-N 4-hydroxy-2-methylidenebutanamide Chemical compound NC(=O)C(=C)CCO SBVKVAIECGDBTC-UHFFFAOYSA-N 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 150000002736 metal compounds Chemical class 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 4
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 3
- NLGDWWCZQDIASO-UHFFFAOYSA-N 2-hydroxy-1-(7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-yl)-2-phenylethanone Chemical compound OC(C(=O)c1cccc2Oc12)c1ccccc1 NLGDWWCZQDIASO-UHFFFAOYSA-N 0.000 description 3
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 150000003926 acrylamides Chemical class 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical group C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 2
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 2
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 2
- 125000004200 2-methoxyethyl group Chemical group [H]C([H])([H])OC([H])([H])C([H])([H])* 0.000 description 2
- QOXOZONBQWIKDA-UHFFFAOYSA-N 3-hydroxypropyl Chemical group [CH2]CCO QOXOZONBQWIKDA-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 102100026735 Coagulation factor VIII Human genes 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 101000911390 Homo sapiens Coagulation factor VIII Proteins 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000005907 alkyl ester group Chemical group 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- AQTIRDJOWSATJB-UHFFFAOYSA-K antimonic acid Chemical compound O[Sb](O)(O)=O AQTIRDJOWSATJB-UHFFFAOYSA-K 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 2
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
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- 229920002554 vinyl polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 description 1
- PEVRKKOYEFPFMN-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene;1,1,2,2-tetrafluoroethene Chemical group FC(F)=C(F)F.FC(F)=C(F)C(F)(F)F PEVRKKOYEFPFMN-UHFFFAOYSA-N 0.000 description 1
- MSAHTMIQULFMRG-UHFFFAOYSA-N 1,2-diphenyl-2-propan-2-yloxyethanone Chemical compound C=1C=CC=CC=1C(OC(C)C)C(=O)C1=CC=CC=C1 MSAHTMIQULFMRG-UHFFFAOYSA-N 0.000 description 1
- QWQFVUQPHUKAMY-UHFFFAOYSA-N 1,2-diphenyl-2-propoxyethanone Chemical compound C=1C=CC=CC=1C(OCCC)C(=O)C1=CC=CC=C1 QWQFVUQPHUKAMY-UHFFFAOYSA-N 0.000 description 1
- DKEGCUDAFWNSSO-UHFFFAOYSA-N 1,8-dibromooctane Chemical compound BrCCCCCCCCBr DKEGCUDAFWNSSO-UHFFFAOYSA-N 0.000 description 1
- IQDDSZGPEUBKEM-UHFFFAOYSA-N 1-[4-(2-hydroxyethyl)phenyl]-2-methylpropan-1-one Chemical compound CC(C)C(=O)C1=CC=C(CCO)C=C1 IQDDSZGPEUBKEM-UHFFFAOYSA-N 0.000 description 1
- XTKZBPGQKMDFMC-UHFFFAOYSA-N 1-butyl-3-methylidenepyrrolidine-2,5-dione Chemical compound CCCCN1C(=O)CC(=C)C1=O XTKZBPGQKMDFMC-UHFFFAOYSA-N 0.000 description 1
- BQTPKSBXMONSJI-UHFFFAOYSA-N 1-cyclohexylpyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1CCCCC1 BQTPKSBXMONSJI-UHFFFAOYSA-N 0.000 description 1
- PBGPBHYPCGDFEZ-UHFFFAOYSA-N 1-ethenylpiperidin-2-one Chemical compound C=CN1CCCCC1=O PBGPBHYPCGDFEZ-UHFFFAOYSA-N 0.000 description 1
- PBDXUGSZYRYWMI-UHFFFAOYSA-N 1-ethyl-3-heptylidenepyrrolidine-2,5-dione Chemical compound CCCCCCC=C1CC(=O)N(CC)C1=O PBDXUGSZYRYWMI-UHFFFAOYSA-N 0.000 description 1
- BMZZOWWYEBTMBX-UHFFFAOYSA-N 1-ethyl-3-methylidenepyrrolidine-2,5-dione Chemical compound CCN1C(=O)CC(=C)C1=O BMZZOWWYEBTMBX-UHFFFAOYSA-N 0.000 description 1
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
- GKMWWXGSJSEDLF-UHFFFAOYSA-N 1-methoxyethane-1,2-diol;prop-2-enoic acid Chemical compound OC(=O)C=C.COC(O)CO GKMWWXGSJSEDLF-UHFFFAOYSA-N 0.000 description 1
- QSWFISOPXPJUCT-UHFFFAOYSA-N 1-methyl-3-methylidenepyrrolidine-2,5-dione Chemical compound CN1C(=O)CC(=C)C1=O QSWFISOPXPJUCT-UHFFFAOYSA-N 0.000 description 1
- XLPJNCYCZORXHG-UHFFFAOYSA-N 1-morpholin-4-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCOCC1 XLPJNCYCZORXHG-UHFFFAOYSA-N 0.000 description 1
- HIDBROSJWZYGSZ-UHFFFAOYSA-N 1-phenylpyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC=C1 HIDBROSJWZYGSZ-UHFFFAOYSA-N 0.000 description 1
- WLPAQAXAZQUXBG-UHFFFAOYSA-N 1-pyrrolidin-1-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCCC1 WLPAQAXAZQUXBG-UHFFFAOYSA-N 0.000 description 1
- BRXKVEIJEXJBFF-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)-3-methylbutane-1,4-diol Chemical compound OCC(C)C(CO)(CO)CO BRXKVEIJEXJBFF-UHFFFAOYSA-N 0.000 description 1
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 description 1
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- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
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- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 description 1
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- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
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- BQZJOQXSCSZQPS-UHFFFAOYSA-N 2-methoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OC)C(=O)C1=CC=CC=C1 BQZJOQXSCSZQPS-UHFFFAOYSA-N 0.000 description 1
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- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- YYIOIHBNJMVSBH-UHFFFAOYSA-N 2-prop-2-enoyloxynaphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=C(OC(=O)C=C)C=CC2=C1 YYIOIHBNJMVSBH-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- XPVKTZNEWSRWDI-UHFFFAOYSA-N 3-[(1-amino-2-methylpropylidene)amino]propanoic acid;hydrate Chemical compound O.CC(C)C(N)=NCCC(O)=O XPVKTZNEWSRWDI-UHFFFAOYSA-N 0.000 description 1
- GAVHQOUUSHBDAA-UHFFFAOYSA-N 3-butyl-1-ethenylaziridin-2-one Chemical compound CCCCC1N(C=C)C1=O GAVHQOUUSHBDAA-UHFFFAOYSA-N 0.000 description 1
- DFSGINVHIGHPES-UHFFFAOYSA-N 3-ethenyl-4h-1,3-oxazin-2-one Chemical compound C=CN1CC=COC1=O DFSGINVHIGHPES-UHFFFAOYSA-N 0.000 description 1
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- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- GGROONUBGIWGGS-UHFFFAOYSA-N oxygen(2-);zirconium(4+);hydrate Chemical compound O.[O-2].[O-2].[Zr+4] GGROONUBGIWGGS-UHFFFAOYSA-N 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- PWGIEBRSWMQVCO-UHFFFAOYSA-N phosphono prop-2-enoate Chemical compound OP(O)(=O)OC(=O)C=C PWGIEBRSWMQVCO-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000007717 redox polymerization reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 235000010378 sodium ascorbate Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium ascorbate Substances [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 0.000 description 1
- 229960005055 sodium ascorbate Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- 239000004711 α-olefin Substances 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
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
-
- 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
- H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/14—Structural combinations or circuits for modifying, or compensating for, electric characteristics of electrolytic capacitors
Definitions
- the present invention relates to an electrolytic capacitor.
- Electrolytic capacitors may generate heat due to ripple current. When the heat is stored inside the electrolytic capacitor, the life of the electrolytic capacitor is shortened. Therefore, it is known that the heat generated by the electrolytic capacitor is radiated to the outside by the radiation fin.
- Patent Document 1 listed below discloses an electrolytic capacitor in which a capacitor element is housed in a bottomed cylindrical outer case, and a gap between the outer case and the capacitor element is filled with silicone oil.
- the electrolytic capacitor described in Patent Document 1 is insufficient in terms of heat dissipation, and further improvement in heat dissipation is required.
- An object of the present invention is to provide an electrolytic capacitor having excellent heat dissipation and stability.
- the electrolytic capacitor of the present invention includes a capacitor element, an exterior case in which the capacitor element is accommodated, having a side wall and a bottom wall, with one end opened, and a sealing material for sealing the opening at the one end.
- An electrolytic capacitor is characterized in that a thermally conductive sheet is disposed between the capacitor element and the inner surface of the outer case and / or the sealing material.
- the thermal conductive sheet has a thermal conductivity of 0.3 W / m ⁇ K or more.
- the heat conductive sheet has an adhesive strength of 0.1 N / 20 mm or more.
- the thermally conductive sheet preferably contains a resin and thermally conductive particles, and the blending ratio of the thermally conductive particles is preferably 50 to 1200 parts by mass with respect to 100 parts by mass of the resin. is there.
- the resin is preferably an acrylic polymer obtained by polymerizing a monomer component containing a (meth) acrylic acid alkyl ester monomer.
- the heat conductive sheet preferably includes a base material and a heat conductive pressure-sensitive adhesive layer laminated on both surfaces of the base material.
- the heat conductive sheet has one surface in the thickness direction attached to the capacitor element, and the other surface in the thickness direction attached to at least one of the side wall, the bottom wall, and the sealing material. It is preferable that
- the thermal conductive sheet is disposed between the capacitor element and the inner surface of the bottom wall.
- a heat conductive sheet is disposed between the capacitor element and the inner surface of the outer case and / or the sealing material. Therefore, the heat generated by the capacitor element can be efficiently conducted to the exterior case. As a result, heat dissipation is excellent.
- the gap between the outer case and the capacitor element is blocked by the heat conductive sheet. Therefore, it is possible to suppress the capacitor element from vibrating in the outer case. Therefore, the stability of the capacitor element is excellent.
- FIG. 1 shows a cross-sectional view of a first embodiment of the electrolytic capacitor of the present invention.
- FIG. 2 shows a cross-sectional view of a second embodiment of the electrolytic capacitor of the present invention.
- FIG. 3 shows a cross-sectional view of a third embodiment of the electrolytic capacitor of the present invention.
- FIG. 4 shows a cross-sectional view of a fourth embodiment of the electrolytic capacitor of the present invention.
- FIG. 5 is an explanatory view of a thermal characteristic evaluation apparatus, in which FIG. 5 (a) shows a front view and FIG. 5 (b) shows a side view.
- the electrolytic capacitor 1 of the first embodiment of the present invention includes an outer case 3, a capacitor element 2, and a sealing material 4.
- the exterior case 3 has a side wall 10 and a bottom wall 11, and an upper end portion (one end portion) 13 is opened to form a bottomed cylindrical shape.
- the side wall 10 is formed in a substantially cylindrical shape, the inner diameter thereof is slightly larger than the outer diameter of the capacitor element 2, and the vertical length thereof is larger than the vertical length of the capacitor element 2.
- the upper end 13 of the side wall 10 is formed in an S-shaped cross section or an inverted S-shaped cross section. Specifically, the upper end portion 13 has a concave portion 16a that is recessed in a substantially arc shape in cross section in the radial direction of the side wall 10 and extends upward continuously from the concave portion 16a. And a convex portion 16b bulging in an arc shape.
- the lower end portion of the concave portion 16a is continuous with the substantially cylindrical side wall 10 below the concave portion 16a, and the free end portion 14 of the convex portion 16b is formed to face downward.
- the bottom wall 11 is formed in a substantially circular shape in plan view.
- the diameter of the bottom wall 11 coincides with the outer diameter of the side wall 10, and the peripheral edge portion of the bottom wall 11 is formed continuously with the lower end portion of the side wall 10.
- the inner diameter (diameter) A1 of the inner surface 26 of the bottom wall 11 is, for example, 1 mm or more, preferably 5 mm or more, more preferably 10 mm or more, and for example, 100 mm or less, preferably 80 mm or less, more preferably. Is also 50 mm or less.
- the capacitor element 2 is formed in a substantially cylindrical shape by winding an anode foil, a cathode foil, and a separator (not shown) interposed therebetween around a metal core 8.
- a winding fastener (not shown) is attached to the outer peripheral surface 9 of the capacitor element 2.
- the diameter A2 of the capacitor element 2 is, for example, 1 mm or more, preferably 5 mm or more, more preferably 10 mm or more, and for example, 100 mm or less, preferably 80 mm or less, more preferably 50 mm or less.
- condenser element 2 is accommodated in the exterior case 3, and is mounted in the center part of the bottom part of the bottom wall 11 so that the axial direction and the side wall 10 of the core 8 may become parallel in cross section. .
- the upper surface 28 of the capacitor element 2 is disposed so as to be lower than the recess 16a.
- the sealing material 4 is disposed on the upper end portion 13 of the outer case 3.
- the sealing material 4 is formed in an approximately circular shape with a thick wall from an elastically deformable insulating material such as rubber.
- the diameter of the sealing material 4 is substantially the same as the inner diameter of the outer case 3.
- the sealing material 4 seals the upper end portion 13 of the outer case 3. Specifically, the sealing material 4 is in contact with the inner side of the boundary portion between the concave portion 16a and the convex portion 16b at the peripheral portion of the lower surface, and is in contact with the free end portion 14 at the peripheral portion of the upper surface. Thereby, the sealing material 4 is fixed to the outer case 3 by being sandwiched between the boundary portion between the concave portion 16 a and the convex portion 16 b and the free end portion 14, and seals the upper end portion 13 of the outer case 3. Yes.
- Two external terminals 21 are arranged on the upper surface 19 of the sealing material 4 with a gap therebetween.
- Two internal terminals 22 corresponding to the two external terminals 21 are arranged on the lower surface 17 of the sealing material 4 at an interval.
- Each external terminal 21 is electrically connected to the corresponding internal terminal 22 by a wiring (not shown) penetrating in the thickness direction of the sealing material 4.
- each of the two internal terminals 22 is electrically connected to the capacitor element 2 through the electrode lead wire 23. That is, one internal terminal 22 is connected to the anode foil of the capacitor element 2 via the electrode lead wire 23, and the other internal terminal 22 is connected to the cathode foil of the capacitor element 2 via the electrode lead wire 23. Yes.
- the distance A3 between the outer peripheral surface 9 of the capacitor element 2 and the inner surface 25 of the side wall 10 is, for example, 0.1 mm or more, preferably 0.5 mm or more, more preferably 1 mm or more, and for example, 20 mm or less. It is preferably 10 mm or less, more preferably 5 mm or less.
- the heat conductive adhesive sheet 30 is formed in a substantially circular flat plate shape, and more specifically, has substantially the same shape in plan view as the inner side surface 26 of the bottom wall 11 of the outer case 3.
- the heat conductive adhesive sheet 30 is disposed between the lower surface 27 of the capacitor element 2 and the inner side surface 26 of the bottom wall 11 of the outer case 3. That is, one surface in the thickness direction of the heat conductive adhesive sheet 30 is in contact with the lower surface 27 of the capacitor element 2, and the other surface in the thickness direction is in contact with the inner surface 26 of the bottom wall 11. Further, the peripheral end surface of the heat conductive adhesive sheet 30 is in contact with the inner side surface 25 of the side wall 10 of the exterior case 3.
- the heat conductive adhesive sheet 30 includes a base material 31 and a heat conductive adhesive layer 32 laminated on both surfaces of the base material 31.
- the substrate 31 is, for example, a polyester film (polyethylene terephthalate film or the like), for example, a fluorine-based polymer (for example, polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinyl fluoride, polyvinylidene fluoride, tetrafluoroethylene-hexafluoropropylene).
- a fluorine-based polymer for example, polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinyl fluoride, polyvinylidene fluoride, tetrafluoroethylene-hexafluoropropylene.
- Copolymer chlorofluoroethylene-vinylidene fluoride copolymer, etc.
- olefin resin film made of olefin resin (polyethylene, polypropylene, etc.), eg, polyvinyl chloride film, polyimide film, Plastic base film (synthetic resin film) such as polyamide film (nylon film) and rayon film, eg fine paper, Japanese paper, kraft paper, glassine paper, synthetic paper Paper such as top-coated paper, for example, and they were double layered composites and the like.
- a polyester film is used.
- the thickness of the base material 31 is, for example, 2 ⁇ m or more, preferably 12 ⁇ m or more, and for example, 100 ⁇ m or less, preferably 50 ⁇ m or less.
- the heat conductive adhesive layer 32 contains, for example, heat conductive particles and a resin, and is formed into a sheet shape that spreads in the surface direction (direction orthogonal to the thickness direction).
- the resin includes, for example, an acrylic polymer, and more specifically, an acrylic polymer obtained by polymerizing a monomer component containing a (meth) acrylic acid alkyl ester monomer.
- (meth) acrylic acid alkyl ester monomers examples include methacrylic acid alkyl ester monomers and / or acrylic acid alkyl ester monomers, such as methyl (meth) acrylate, ethyl (meth) acrylate, and propyl (meth) acrylate.
- (meth) acrylic acid alkyl ester monomers (meth) acrylic acid C2-12 alkyl ester is preferred, and (meth) acrylic acid C4- 9 alkyl esters.
- the (meth) acrylic acid alkyl ester monomer is blended in the monomer component in a proportion of, for example, 60% by mass or more, preferably 80% by mass or more, for example, 100% by mass or less, preferably 99% by mass or less. .
- the monomer component can contain, as optional components, a polar group-containing monomer, a polyfunctional monomer, and a copolymerizable monomer copolymerizable with these monomers.
- Examples of polar group-containing monomers include nitrogen-containing monomers, hydroxyl group-containing monomers, sulfo group-containing monomers, nitrogen / hydroxyl group-containing monomers, nitrogen / sulfo group-containing monomers, hydroxyl group / phosphate group-containing monomers, and carboxyl group-containing monomers. Etc.
- nitrogen-containing monomer examples include cyclic (meth) acrylamides such as N- (meth) acryloylmorpholine and N- (meth) acryloylpyrrolidine, such as (meth) acrylamide, N-substituted (meth) acrylamide (for example, N- N-alkyl (meth) acrylamides such as ethyl (meth) acrylamide and Nn-butyl (meth) acrylamide, for example, N, N-dimethyl (meth) acrylamide, N, N-diethyl (meth) acrylamide, N, N N, such as dipropyl (meth) acrylamide, N, N-diisopropyl (meth) acrylamide, N, N-di (n-butyl) (meth) acrylamide, N, N-di (t-butyl) (meth) acrylamide N-dialkyl (meth) acrylamide) Luamide such as N
- hydroxyl group-containing monomer examples include 2-hydroxyethyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, (meth ) 8-hydroxyoctyl acrylate, 10-hydroxydecyl (meth) acrylate, 12-hydroxylauryl (meth) acrylate, and the like.
- sulfo group-containing monomer examples include styrene sulfonic acid, allyl sulfonic acid, sulfopropyl (meth) acrylate, (meth) acryloyloxynaphthalene sulfonic acid, and the like.
- Examples of the monomer having both nitrogen and hydroxyl groups include N- (2-hydroxyethyl) (meth) acrylamide (HEAA / HEMA), N- (2-hydroxypropyl) (meth) acrylamide, and N- (1-hydroxypropyl).
- nitrogen / sulfo group-containing monomer examples include 2- (meth) acrylamide-2-methylpropanesulfonic acid and (meth) acrylamidepropanesulfonic acid.
- hydroxyl group / phosphate group-containing monomer examples include 2-hydroxyethyl (meth) acryloyl phosphate.
- Examples of the carboxyl group-containing monomer include (meth) acrylic acid, itaconic acid, maleic acid, fumaric acid, crotonic acid, and isocrotonic acid.
- Examples of the carboxyl group-containing monomer include carboxylic anhydrides such as maleic anhydride and itaconic anhydride.
- polar group-containing monomers from the viewpoint of imparting high adhesiveness and holding power to the pressure-sensitive adhesive layer, preferably, a hydroxyl group-containing monomer, a nitrogen-containing monomer, and a nitrogen / hydroxyl combination monomer are mentioned, and more preferably , NVP, HEAA / HEMA.
- the polar group-containing monomer is blended in the monomer component, for example, in a proportion of 2% by mass or more, preferably 5% by mass or more, and for example, 30% by mass or less, preferably 25% by mass or less. Blended. When the blending ratio of the polar group-containing monomer is within the above range, good adhesiveness and holding power can be imparted to the pressure-sensitive adhesive layer.
- the carboxyl group-containing monomer is preferably blended in the monomer component at a ratio of, for example, 5% by mass or less, preferably 1% by mass or less, and more preferably 0% by mass (that is, not blended). .
- a ratio of, for example, 5% by mass or less, preferably 1% by mass or less, and more preferably 0% by mass (that is, not blended). By setting it as said mixture ratio, the corrosion of the metal which comprises the exterior case 3 etc. can be prevented.
- the polyfunctional monomer is a monomer having a plurality of ethylenically unsaturated hydrocarbon groups, for example, hexanediol di (meth) acrylate, (poly) ethylene glycol di (meth) acrylate, (poly) propylene glycol di (meth) Acrylate, neopentyl glycol di (meth) acrylate, pentaerythritol di (meth) acrylate, pentaerythritol tri (meth) acrylate, dipentaerythritol hexa (meth) acrylate, trimethylolpropane tri (meth) acrylate, tetramethylolpropane tri ( Bifunctional or higher, such as (meth) acrylate, allyl (meth) acrylate, vinyl (meth) acrylate, divinylbenzene, epoxy acrylate, polyester acrylate, urethane acrylate It includes polyfunctional monomer
- a tetrafunctional or higher polyfunctional monomer such as dipentaerythritol hexa (meth) acrylate is used.
- the polyfunctional monomer is blended in the monomer component in an amount of, for example, 2% by mass or less, preferably 1% by mass or less, and for example, 0.01% by mass or more, more preferably 0.02% by mass. It mix
- the blending ratio of the polyfunctional monomer is within the above range, the adhesive strength of the heat conductive composition can be improved.
- Examples of the copolymerizable monomer include epoxy group-containing monomers such as glycidyl (meth) acrylate and allyl glycidyl ether, such as 2-methoxyethyl (meth) acrylate, 3-methoxypropyl (meth) acrylate, (meth) Alkoxy group-containing monomers such as methoxyethylene glycol acrylate and methoxypolypropylene glycol (meth) acrylate, cyano group-containing monomers such as acrylonitrile and methacrylonitrile, styrene monomers such as styrene and ⁇ -methylstyrene, ⁇ -olefins such as ethylene, propylene, isoprene, butadiene and isobutylene, for example, isocyanate groups such as 2-isocyanatoethyl acrylate and 2-isocyanatoethyl methacrylate Monomers, for example, vinyl ester monomers
- an alkoxy group-containing monomer is preferable, and 2-methoxyethyl (meth) acrylate is more preferable.
- the copolymerizable monomer is blended in the monomer component in an amount of, for example, 30% by mass or less, preferably 20% by mass or less, and 0% by mass or more (0% by mass when not blended or blended). %), Preferably 5% by mass or more.
- These monomers can be used alone (only one kind) or in combination of two or more kinds.
- Resin can be used alone (only one kind) or in combination of two or more kinds.
- the thermally conductive particles are formed from a thermally conductive material in the form of particles, and examples of such thermally conductive materials include hydrated metal compounds, metal oxides, and metal nitrides. Preferably, a hydrated metal compound is used.
- the hydrated metal compound has a decomposition start temperature in the range of 150 to 500 ° C., and has a general formula M x O y ⁇ nH 2 O (M is a metal atom, x and y are integers of 1 or more determined by the valence of the metal, n is a compound represented by the number of contained crystal water) or a double salt containing the above compound.
- Examples of the hydrated metal compound include aluminum hydroxide [Al 2 O 3 .3H 2 O; or Al (OH) 3 ], boehmite [Al 2 O 3 .H 2 O; or AlOOH], magnesium hydroxide [MgO H 2 O; or Mg (OH) 2 ], calcium hydroxide [CaO ⁇ H 2 O; or Ca (OH) 2 ], zinc hydroxide [Zn (OH) 2 ], silicic acid [H 4 SiO 4 ; H 2 SiO 3 ; or H 2 Si 2 O 5 ], iron hydroxide [Fe 2 O 3 .H 2 O or 2FeO (OH)], copper hydroxide [Cu (OH) 2 ], barium hydroxide [BaO.
- metal oxide examples include aluminum oxide, magnesium oxide, titanium oxide, zinc oxide, tin oxide, copper oxide, nickel oxide, and antimonic acid doped tin oxide.
- metal nitrides examples include aluminum nitride and gallium nitride.
- the thermally conductive material includes, for example, boron nitride, silicon nitride, silicon carbide, silicon dioxide, calcium carbonate, barium titanate, potassium titanate, copper, silver, gold, nickel, aluminum Platinum and carbon (including diamond).
- aluminum hydroxide is preferably used from the viewpoint of imparting high heat conductivity and flame retardancy to the pressure-sensitive adhesive layer.
- the shape of the heat conductive particles is not particularly limited as long as it is particulate (powder), and may be, for example, a bulk shape, a needle shape, a plate shape, or a layer shape.
- the bulk shape includes, for example, a spherical shape, a rectangular parallelepiped shape, a crushed shape, or a deformed shape thereof.
- the size of the heat conductive particles is not particularly limited.
- the primary average particle diameter is, for example, 0.1 ⁇ m or more, preferably 0.5 ⁇ m or more, more preferably 1 ⁇ m or more. It is 1000 ⁇ m or less, preferably 200 ⁇ m or less, and more preferably 80 ⁇ m or less.
- the primary average particle size of the thermally conductive particles is based on the particle size distribution measured by the particle size distribution measurement method in the laser scattering method, and more specifically, the volume-based average particle size, more specifically, the D50 value (cumulative 50% median). (Diameter).
- heat conductive particles are commercially available.
- the trade name “Hijilite H-100-ME” (manufactured by Showa Denko KK)
- the trade name “Heidilite H— 10 “(manufactured by Showa Denko KK)
- trade name” Hijilite H-32 (manufactured by Showa Denko KK)
- Heidilite H-31 “(manufactured by Showa Denko KK)
- trade name Brightonlite H-42 “ (Manufactured by Showa Denko KK)
- trade name “Hijilite H-43M” (manufactured by Showa Denko KK)
- trade name “B103ST” (manufactured by Nippon Light Metal Co., Ltd.), etc.
- the product name “KISUMA 5A” (manufactured by Kyowa Chemical Industry Co., Ltd.) can be used.
- the thermally conductive particles made of boron nitride the product name “HP-40” (manufactured by Mizushima Alloy Iron Co., Ltd.) PT6 0 ”(made by Momentive Co., Ltd.) and the like, for example, as the thermally conductive particles made of aluminum oxide, the product name“ AS-50 ”(made by Showa Denko KK) and the product name“ AS-10 ”(made by Showa Denko KK).
- the heat conductive particles made of antimonic acid doped tin oxide the product name “SN-100S” (Ishihara Sangyo Co., Ltd.), the product name “SN-100P” (Ishihara Sangyo Co., Ltd.), the product The name “SN-100D (water-dispersed product)” (manufactured by Ishihara Sangyo Co., Ltd.) and the like are listed.
- thermally conductive particles made of zinc oxide the trade name “SnO-310” (manufactured by Sumitomo Osaka Cement Co., Ltd.), the trade name “SnO-350” (manufactured by Sumitomo Osaka Cement Co., Ltd.), 10 "(Sumitomo Osaka Cement Co.), and the like.
- These heat conductive particles can be used alone or in combination.
- the content ratio of the heat conductive particles is, for example, 50 parts by mass or more, preferably 100 parts by mass or more, more preferably 300 parts by mass or more, and, for example, 1200 parts by mass with respect to 100 parts by mass of the resin. It is 1 part by mass or less, preferably 1100 parts by mass or less, and more preferably 1000 parts by mass or less.
- the heat conductive pressure-sensitive adhesive layer 32 can be provided with excellent heat conductivity and excellent adhesion (stickiness).
- the heat conductive adhesive layer 32 can also contain a known additive (described later).
- a heat conductive composition is prepared.
- the heat conductive composition is prepared, for example, by preparing a monomer composition containing the above-described monomer component and a polymerization initiator, or preparing a polymer composition in which the above-described resin is dissolved in a solvent such as an organic solvent. Then, heat conductive particles are blended.
- a polymerization initiator is blended with the above-described monomer component.
- polymerization initiator examples include a photopolymerization initiator and a thermal polymerization initiator.
- the photopolymerization initiator examples include a benzoin ether photopolymerization initiator, an ⁇ -ketol photopolymerization initiator, an acetophenone photopolymerization initiator, an aromatic sulfonyl chloride photopolymerization initiator, and a photoactive oxime photopolymerization initiator.
- Agents benzoin photopolymerization initiators, benzyl photopolymerization initiators, benzophenone photopolymerization initiators, thioxanthone photopolymerization initiators, and the like. Preferred are benzoin ether photopolymerization initiators and ⁇ -ketol photopolymerization initiators.
- benzoin ether photopolymerization initiator examples include benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, benzoin isopropyl ether, benzoin isobutyl ether, 2,2-dimethoxy-1,2-diphenylethane-1-one, and anisole.
- examples include methyl ether.
- Examples of ⁇ -ketol photopolymerization initiators include 2-methyl-2-hydroxypropiophenone, 1- [4- (2-hydroxyethyl) phenyl] -2-methylpropan-1-one, and 1-hydroxy. Examples include cyclohexyl phenyl ketone.
- thermal polymerization initiator examples include 2,2′-azobisisobutyronitrile, 2,2′-azobis-2-methylbutyronitrile, 2,2′-azobis (2-methylpropionic acid) dimethyl, 4,4'-azobis-4-cyanovaleric acid, azobisisovaleronitrile, 2,2'-azobis (2-amidinopropane) dihydrochloride, 2,2'-azobis [2- (5-methyl-2- Imidazolin-2-yl) propane] dihydrochloride, 2,2'-azobis (2-methylpropionamidine) disulfate, 2,2'-azobis (N, N'-dimethyleneisobutylamidine) hydrochloride, 2, Azo polymerization initiators such as 2′-azobis [N- (2-carboxyethyl) -2-methylpropionamidine] hydrate, Peroxide polymerization initiators such as zoyl peroxide, t-butyl permaleate, t-butyl hydro
- These polymerization initiators can be used alone (only one kind) or in combination of two or more kinds.
- a photopolymerization initiator is preferable because of the advantage that the polymerization time can be shortened.
- the photopolymerization initiator is not particularly limited, but is, for example, 0.01 parts by mass or more, preferably 0 with respect to 100 parts by mass of the monomer component. .05 parts by mass or more, and for example, 5 parts by mass or less, preferably 3 parts by mass or less.
- thermal polymerization initiator when a thermal polymerization initiator is blended as a polymerization initiator, the thermal polymerization initiator is not particularly limited and is blended in an available ratio.
- the mixture of the monomer component and the photopolymerization initiator is irradiated with ultraviolet rays.
- the monomer composition has a viscosity (BH viscometer, No. 5 rotor, 10 rpm, measurement temperature 30 ° C.) with irradiation energy that excites the photopolymerization initiator, for example, 5 Pa ⁇ s.
- irradiation is preferably performed until the pressure reaches 10 Pa ⁇ s or more, for example, 30 Pa ⁇ s or less, preferably 20 Pa ⁇ s or less.
- the mixture of the monomer component and the thermal polymerization initiator is polymerized at, for example, a temperature higher than the decomposition temperature of the thermal polymerization initiator, specifically about 20 to 100 ° C.
- the viscosity of the monomer composition is, for example, 5 Pa ⁇ s or more, preferably Heating is performed until the pressure reaches 10 Pa ⁇ s or higher, for example, 30 Pa ⁇ s or lower, preferably 20 Pa ⁇ s or lower.
- a monomer selected from a (meth) acrylic acid alkyl ester monomer, a polar group-containing monomer and a copolymerizable monomer, and polymerization start As described above, a part of the monomer can be polymerized and then a polyfunctional monomer can be blended.
- a polymerization initiator and an organic solvent are blended with the above-described monomer component, and the monomer component is polymerized, or the above-described resin is blended with the organic solvent.
- the polymerization initiator and the blending ratio thereof are the same as the polymerization initiator and the blending ratio described above for the monomer component.
- the solvent is an organic solvent or water
- examples of the organic solvent include ketones such as acetone and methyl ethyl ketone (MEK), aromatic hydrocarbons such as toluene, xylene, and ethylbenzene, esters such as ethyl acetate, and the like. And amides such as N, N-dimethylformamide.
- solvents can be used alone or in combination of two or more.
- the mixing ratio of the solvent is, for example, 1 part by mass or more, preferably 50 parts by mass or more, and for example, 500 parts by mass or less, preferably 200 parts by mass with respect to 100 parts by mass of the monomer component or resin. It is also below the department.
- ultraviolet rays are irradiated when a photopolymerization initiator is blended, and heating is performed when a thermal polymerization initiator is blended.
- the monomer composition and the polymer composition include a dispersant, a tackifier, a crosslinking agent, a silane coupling agent, a fluorosurfactant, a plasticizer, a filler, an anti-aging agent, a colorant, and the like as necessary. Additives can also be blended.
- the blending ratio of the additive is, for example, 0.1 to 10 parts by mass for the dispersant and 1 to 50 parts by mass for the tackifier with respect to 100 parts by mass of the monomer component and the resin.
- the agent is, for example, 0.1 to 10 parts by mass.
- heat conductive particles are blended into the monomer composition and polymer composition obtained and mixed.
- the thermally conductive particles and additives can be blended in the monomer composition or polymer composition in a state of being dispersed or dissolved in a solvent such as an organic solvent.
- a heat conductive composition is apply
- the base film is the same as that described above for the base material 31, for example.
- transmits an ultraviolet-ray is used so that ultraviolet irradiation with respect to a heat conductive composition may not be prevented.
- heat conductive composition for example, roll coat, kiss roll coat, gravure coat, reverse coat, roll brush, spray coat, dip roll coat, bar coat, knife coat, air knife coat, Examples include curtain coats, lip coats, and die coaters.
- the coating thickness of the heat conductive composition is, for example, 1 ⁇ m or more, preferably 10 ⁇ m or more, and for example, 1000 ⁇ m or less, preferably 500 ⁇ m or less.
- a cover film (for example, a release sheet) is disposed on the surface (one surface in the thickness direction) of the coating film of the heat conductive composition.
- the cover film is arranged so that the surface on which the cover film is peeled is in contact with the coating film.
- cover film examples include films similar to the above-described base film. Moreover, when the heat conductive composition contains the photoinitiator, the cover film which permeate
- the monomer component of the heat conductive composition is then polymerized.
- the thermal conductive composition is irradiated with ultraviolet rays and blended with the thermal polymerization initiator. If so, the thermally conductive composition is heated.
- the heat conductive composition when a heat conductive composition is prepared from the polymer composition, the heat conductive composition is applied and dried by heating to remove the solvent.
- the polymer composition contains a crosslinking agent, the resin can be thermoset by heating.
- the heat conductive adhesive layer 32 is formed.
- the heat conductive adhesive layer 32 is formed as an acrylic adhesive layer, for example, when it contains a (meth) acrylic acid alkyl ester monomer as a monomer component.
- the content ratio of the resin in the heat conductive adhesive layer 32 is, for example, 1% by mass or more, preferably 10% by mass or more, and for example, 60% by mass or less, preferably 45% by mass or less, more preferably. Is 40% by mass or less.
- the content ratio of the heat conductive particles in the heat conductive pressure-sensitive adhesive layer 32 is, for example, 1% by mass or more, preferably 10% by mass or more, and more preferably 30% by mass or more. It is also not more than mass%, preferably not more than 80 mass%.
- the heat conductive pressure-sensitive adhesive sheet 30 can be obtained.
- the thickness of the heat conductive pressure-sensitive adhesive sheet 30 (total of the heat conductive pressure-sensitive adhesive layer 32 and the base material 31) is, for example, 5 ⁇ m or more, preferably 30 ⁇ m or more, and for example, 5000 ⁇ m or less, preferably 1000 ⁇ m. It is also below.
- the adhesive strength (measured by the method described in Examples described later) on the surface (thermal conductive adhesive layer 32) of the obtained heat conductive adhesive sheet 30 is, for example, 0.1 N / 20 mm or more, preferably 1N / 20mm or more, more preferably 5N / 20mm or more, for example, 40N / 20mm or less, preferably 30N / 20mm or less, and more preferably 20N / 20mm or less.
- the heat conductive adhesive sheet 30 adheres firmly to the capacitor element 2 and the inner side surfaces 25 and 26 of the outer case 3 and / or the sealing material 4, and the capacitor element 2 and the outer case 3. And can be securely fixed.
- the thermal conductivity of the heat conductive adhesive sheet 30 is 0.3 W / m ⁇ K or more, preferably 0.4 W / m ⁇ K or more. Preferably, it is 0.5 W / m ⁇ K or more, for example, 10 W / m ⁇ K or less.
- the heat conductive adhesive sheet 30 is excellent in heat conductivity, Therefore, the heat
- a heat conductive adhesive sheet 30 is disposed between the lower surface (bottom surface) 27 of the capacitor element 2 and the inner surface 26 of the bottom wall 11. Therefore, the heat generated by the capacitor element 2 can be efficiently conducted to the outer case 3. As a result, heat dissipation is excellent. Further, the gap between the outer case 3 and the capacitor element 2 is blocked by the heat conductive adhesive sheet 30. Therefore, it is possible to suppress the capacitor element 2 from vibrating in the outer case 3. As a result, the stability of the capacitor element 2 is excellent.
- a heat conductive sheet is the heat conductive adhesive sheet 30 laminated
- the heat conductive sheet is not necessarily required to have adhesiveness on one side or both sides in the thickness direction, and even in such a case, it is excellent in heat dissipation and stability with respect to the capacitor element 2.
- the thickness direction one surface of the heat conductive adhesive layer 32 is adhered to the capacitor element 2 and the thickness direction other surface is adhered to the inner surface of the bottom wall 11 as in the first embodiment.
- the capacitor element 2 and the outer case 3 can be more stably fixed.
- the heat conductive adhesive sheet 30 is laminated on the lower surface 27 of the capacitor element 2, but for example, a plurality of layers may be laminated, although not shown. That is, a plurality of layers (for example, 2 to 5 layers) of the heat conductive adhesive sheet 30 may be laminated in a gap between the lower surface 27 of the capacitor element 2 and the inner surface 26 of the bottom wall 11.
- the heat conductive adhesive sheet 30 is disposed on the entire inner surface 26 of the bottom wall 11 and the entire lower surface 27 of the capacitor element 2.
- the sheet 30 may be disposed only on a part of the inner surface 26 of the bottom wall 11 and / or the lower surface 27 of the capacitor element 2.
- the heat conductive adhesive sheet 30 is disposed between the lower surface 27 of the capacitor element 2 and the inner surface 26 of the bottom wall 11.
- the capacitor element 2 may be disposed between the outer peripheral surface 9 and the inner side surface 25 of the side wall 10 of the outer case 3.
- the heat conductive adhesive sheet 30 is formed in a substantially rectangular flat plate shape and is wound around the outer peripheral surface 9 of the capacitor element 2.
- the vertical length of the heat conductive adhesive sheet 30 is substantially the same as the vertical length of the capacitor element 2, and the upper end portion and the lower end portion of the heat conductive adhesive sheet 30 are the upper surface 28 and the lower surface of the capacitor element 2. 27 to be flush with each other.
- the heat conductive adhesive sheet 30 is wound once around the outer peripheral surface 9 of the capacitor element 2, but may be wound around a plurality of turns, for example, although not shown. That is, a plurality of layers (for example, 2 to 5 layers) of the heat conductive adhesive sheet 30 may be laminated in a gap between the outer peripheral surface 9 of the capacitor element 2 and the inner surface 25 of the side wall 10.
- the heat conductive adhesive sheet 30 is wound once around the outer peripheral surface 9 of the capacitor element 2.
- the heat conductive sheet is formed of the capacitor element 2. It may be arranged only on a part of the outer peripheral surface 9.
- the heat conductive adhesive sheet 30 may be wound around the outer peripheral surface 9 of the capacitor element 2 by a half circumference.
- the vertical length of the heat conductive adhesive sheet 30 is substantially the same as the vertical length of the capacitor element 2.
- the vertical direction of the heat conductive adhesive sheet 30 is The length may be longer or shorter than the vertical length of the capacitor element 2.
- the heat conductive adhesive sheet 30 is disposed between the lower surface 27 of the capacitor element 2 and the inner surface 26 of the bottom wall 11, but is shown in FIG. 3 (third embodiment). As shown, the capacitor element 2 may be disposed between the upper surface 28 and the lower surface 17 of the sealing material 4. In this case, the shape of the heat conductive pressure-sensitive adhesive sheet 30 is substantially the same in plan view as the upper surface 28 of the capacitor element 2 or the inside of the recess 16a.
- the heat conductive adhesive sheet 30 is formed with a plurality (two) of through holes penetrating in the thickness direction for inserting the electrode lead wires 23.
- the heat conductive adhesive sheet 30 is disposed between the outer peripheral surface 9 of the capacitor element 2 and the inner side surface 25 of the side wall 10, and the capacitor element.
- the two lower surfaces 27 may be disposed between the lower surface 27 and the inner surface 26 of the bottom wall 11 of the outer case 3.
- Example 1 (Preparation of heat conductive composition) A monomer component containing 70 parts by mass of 2-ethylhexyl acrylate, 30 parts by mass of n-butyl acrylate, 0.05 part by mass of 2-hydroxyethyl acrylate, and 3 parts by mass of acrylic acid was added to a thermal polymerization initiator (2′2 ′ -Azobisisobutyronitrile (AIBN), manufactured by Wako Pure Chemical Industries, Ltd.) 0.08 parts by mass and 150 parts by mass of toluene were mixed and dissolved, and then polymerized at 65 ° C. for 8 hours to obtain an acrylic polymer. A solution (polymer composition) was obtained. The viscosity of the acrylic polymer solution (BH viscometer, No. 5 rotor, 10 s ⁇ 1 , measurement temperature 30 ° C.) was about 25 Pa ⁇ s.
- AIBN thermal polymerization initiator
- thermally conductive particles aluminum hydroxide, trade name “Hijilite H-32”, shape: crushed, primary average particle size 8 ⁇ m, Showa Denko KK
- adhesive Giving agent rosin resin: trade name “superester”, weight average molecular weight 1520, softening point (ring-ball method) 95 to 105 ° C., Arakawa Chemical Industries, Ltd.
- crosslinking agent isocyanate crosslinking agent: The product name “Coronate L”, trimethylolpropane adduct of tolylene diisocyanate, solid content 75% by mass, 2.0 parts by mass
- thermoset (Preparation of heat conductive adhesive sheet) Using a roll coater, prepare the release sheet (polyethylene terephthalate, trade name “Diafoil MRF38”, thickness 38 ⁇ m, manufactured by Mitsubishi Plastics) so that the thickness after curing is 45 ⁇ m with a roll coater. Applied. Then, the heat conductive adhesive layer 32 was formed by heating a heat conductive composition at 110 degreeC for 3 minute (s), and making it thermoset. Next, another release sheet (polyethylene terephthalate, trade name “Diafoil MRN38”, thickness 38 ⁇ m, manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.) was laminated on the surface of the heat conductive adhesive layer 32.
- the release sheet polyethylene terephthalate, trade name “Diafoil MRF38”, thickness 38 ⁇ m, manufactured by Mitsubishi Plastics
- the heat conductive pressure-sensitive adhesive layer 32 is made of a polyethylene terephthalate substrate 31 (trade name “Lumirror S-10”, thickness 12 ⁇ m, manufactured by Toray Industries, Inc.).
- the total thickness including the polyethylene terephthalate substrate 31 and the heat conductive adhesive layer 32 laminated on both surfaces. That is, the polyethylene terephthalate substrate 31 is removed.
- a thermal conductive adhesive sheet 30 (length: 300 mm, width: 250 mm) of 102 ⁇ m was prepared. This heat conductive adhesive sheet 30 was cut into a circular shape with a diameter of 30 mm.
- An electrolytic capacitor 1 was prepared in which a cylindrical capacitor element 2 (diameter (A2) 28 mm, height 45 mm) was accommodated in a bottomed cylindrical outer case 3 (inner diameter (A1) 30 mm, height 50 mm).
- the distance A3 between the outer peripheral surface 9 of the capacitor element 2 and the inner side surface 25 of the side wall 10 of the bottomed cylindrical outer case 3 was 1 mm.
- the capacitor element 2 is taken out from the outer case 3, and one heat conductive adhesive sheet 30 (the release sheet is peeled off) cut into a circular shape is arranged (adhered) on the lower surface 27 of the capacitor element 2 so as to be concentric. Then, the capacitor element 2 was housed again in the outer case 3 to produce the electrolytic capacitor 1 of Example 1 (see FIG. 1).
- Example 2 (Preparation of heat conductive composition) 82 parts by mass of 2-ethylhexyl acrylate, 12 parts by mass of 2-methoxyethyl acrylate, 5 parts by mass of N-vinyl-2-pyrrolidone (NVP), and 1 part by mass of hydroxyethyl acrylamide (HEAA) were mixed and mixed. A mixture was obtained.
- a photopolymerization initiator (trade name “Irgacure 651”, 2,2-dimethoxy-1,2-diphenylethane-1-one, manufactured by Ciba Japan), and 0.05 parts by mass of a photopolymerization initiator (trade name “Irgacure 184”, 1-hydroxycyclohexyl phenyl ketone, manufactured by Ciba Japan Co., Ltd.) was blended.
- the mixture was irradiated with ultraviolet rays, and the viscosity (BH viscometer No. 5 rotor, 10 rpm, measurement temperature 30 ° C.) was about 20 Pa. Polymerization was performed until s was obtained, and a partial polymer obtained by polymerizing a part of the monomer component was obtained.
- the obtained monomer composition was mixed with 175 parts by mass of aluminum hydroxide (trade name “Hijilite H-32”, shape: crushed, primary average particle size: 8 ⁇ m, manufactured by Showa Denko KK), and aluminum hydroxide ( 175 parts by mass of a trade name “Hijilite H-10”, shape: crushed, primary average particle size: 55 ⁇ m) (manufactured by Showa Denko KK) was added to prepare a heat conductive composition.
- aluminum hydroxide trade name “Hijilite H-32”, shape: crushed, primary average particle size: 8 ⁇ m, manufactured by Showa Denko KK
- aluminum hydroxide 175 parts by mass of a trade name “Hijilite H-10”, shape: crushed, primary average particle size: 55 ⁇ m
- ultraviolet rays having an illuminance of about 5 mW / cm 2 are irradiated from both sides to the heat conductive composition for 3 minutes (corresponding to an irradiation energy of 900 mJ / cm 2 ), and the remaining monomer component is polymerized to thereby form a heat conductive adhesive layer.
- 32 was made between two release sheets.
- the heat conductive pressure-sensitive adhesive layer 32 is made of a polyethylene terephthalate substrate 31 (trade name “Lumirror S-10”, thickness 12 ⁇ m, manufactured by Toray Industries, Inc.).
- the total thickness including the polyethylene terephthalate substrate 31 and the heat conductive adhesive layer 32 laminated on both surfaces. That is, the polyethylene terephthalate substrate 31 is removed.
- a thermal conductive pressure-sensitive adhesive sheet 30 (length 300 mm, width 250 mm) having a thickness of 250 ⁇ m. This heat conductive adhesive sheet 30 was cut into a circular shape with a diameter of 30 mm.
- An electrolytic capacitor 1 was prepared in which a cylindrical capacitor element 2 (diameter (A2) 28 mm, height 45 mm) was accommodated in a bottomed cylindrical outer case 3 (inner diameter (A1) 30 mm, height 50 mm).
- the distance A3 between the outer peripheral surface 9 of the capacitor element 2 and the inner side surface 25 of the side wall 10 of the bottomed cylindrical outer case 3 was 1 mm.
- the capacitor element 2 is taken out from the outer case 3, and one heat conductive adhesive sheet 30 (the release sheet is peeled off) cut into a circular shape is arranged (adhered) on the lower surface 27 of the capacitor element 2 so as to be concentric. Then, the capacitor element 2 was housed again in the outer case 3 to produce the electrolytic capacitor 1 of Example 2 (see FIG. 1).
- Example 3 (Preparation of heat conductive composition) In the same manner as in Example 2, a monomer composition was obtained.
- aluminum hydroxide (trade name “Hijilite H-42”, manufactured by Showa Denko KK, shape: crushed, average particle diameter (volume basis) 1 ⁇ m) 170 parts by mass
- aluminum hydroxide (Product name “Hijilite H-10”, shape: crushed, primary average particle size 55 ⁇ m, Showa Denko KK) 170 parts by mass were blended and mixed to prepare a heat conductive composition.
- the prepared thermally conductive composition is dried and cured on the release-treated surface of a release sheet (polyethylene terephthalate film, trade name “Diafoil MRF38”, manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.) that has been subjected to a release treatment on one side. It apply
- a release sheet polyethylene terephthalate film, trade name “Diafoil MRF38”, manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.
- the monomer component in the heat conductive composition was polymerized to prepare a heat conductive pressure-sensitive adhesive sheet 30 (length 300 mm, width 250 mm).
- This heat conductive adhesive sheet 30 was cut into a circular shape with a diameter of 30 mm.
- An electrolytic capacitor 1 was prepared in which a cylindrical capacitor element 2 (diameter (A2) 28 mm, height 45 mm) was accommodated in a bottomed cylindrical outer case 3 (inner diameter (A1) 30 mm, height 50 mm).
- the distance A3 between the outer peripheral surface 9 of the capacitor element 2 and the inner side surface 25 of the side wall 10 of the bottomed cylindrical outer case 3 was 1 mm.
- the capacitor element 2 is taken out from the outer case 3, and one heat conductive adhesive sheet 30 (the release sheet is peeled off) cut into a circular shape is arranged (adhered) on the lower surface 27 of the capacitor element 2 so as to be concentric. Then, the capacitor element 2 was stored again in the outer case 3 to produce the electrolytic capacitor 1 of Example 3 (see FIG. 1).
- Comparative Example 1 The electrolytic capacitor 1 prepared in Example 1 (the electrolytic capacitor 1 in which the heat conductive adhesive sheet 30 is not wound around the capacitor element 2) was used as the electrolytic capacitor 1 of Comparative Example 1.
- Comparative Example 2 An electrolytic capacitor 1 (an electrolytic capacitor 1 in which the heat conductive adhesive sheet 30 is not wound around the capacitor element 2) is prepared, and silicone oil (trade name “TSF451”) is placed in the gap between the capacitor element 2 and the outer case 3. Momentive) was injected up to the upper surface 28 of the capacitor element 2. This was designated as electrolytic capacitor 1 of Comparative Example 2.
- silicone oil trade name “TSF451”
- the remaining release sheet is peeled off from the surface of the sample for evaluation and attached to an aluminum plate (# 1050) in an atmosphere of 23 ° C. and 50% RH.
- the adhesive sheet 30 was pressed against the aluminum plate.
- the thermal conductivity was measured using a thermal property evaluation apparatus shown in FIG.
- the heating element H is disposed on the upper block L
- the radiator C is disposed below the block L on the lower side.
- the pair of blocks L bonded together by the heat conductive adhesive sheet 30 is located between a pair of pressure adjusting screws T penetrating the heating element H and the radiator C.
- a load cell R is disposed between the pressure adjusting screw T and the heating element H, and is configured to measure the pressure when the pressure adjusting screw T is tightened.
- the pressure S applied to the heat conductive adhesive sheet 30 was used. Specifically, in this test, the pressure adjusting screw T was tightened so that the pressure applied to the heat conductive adhesive sheet 30 was 25 N / cm 2 (250 kPa).
- three probes P (diameter 1 mm) of a contact displacement meter were installed so as to penetrate the lower block L and the heat conductive adhesive sheet 30 from the radiator C side. At this time, the upper end portion of the probe P is in contact with the lower surface of the upper block L, and the distance between the upper and lower blocks L (the thickness of the heat conductive adhesive sheet 30) can be measured. .
- the temperature sensor D was attached to the heating element H and the upper and lower blocks L. Specifically, the temperature sensor D was attached to one place of the heating element H, and the temperature sensors D were attached to the five places of each block L at intervals of 5 mm in the vertical direction.
- the pressure adjusting screw T is tightened to apply pressure to the heat conductive adhesive sheet 30 to set the temperature of the heating element H to 80 ° C., and at the same time, 20 ° C. cooling water is applied to the radiator C. It was circulated.
- the temperature of the upper and lower blocks L is measured by each temperature sensor D, and the thermal conductivity (W / m ⁇ K) and temperature gradient of the upper and lower blocks L are measured.
- the temperature at the interface between the upper and lower blocks L and the heat conductive adhesive sheet 30 was calculated.
- the thermal conductivity (W / m ⁇ K) at the above pressure was calculated using the following thermal conductivity equation (Fourier's law).
- the heat dissipation was evaluated by measuring the temperature difference by (center temperature of capacitor element 2 (T1)) ⁇ (temperature of outer surface of bottom wall 11 (T2)). A case where the temperature difference was 25 ° C. or less was evaluated as “ ⁇ ”, and a case where the temperature difference exceeded 25 ° C. was evaluated as “X”.
- Electrolytic capacitor 1 was shaken lightly to the left and right, and a case where no vibration sound was heard was evaluated as ⁇ , and a case where vibration sound was heard was evaluated as x.
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Abstract
La présente invention porte sur un condensateur électrolytique qui comporte : un élément de condensateur ; un boîtier externe qui reçoit l'élément de condensateur, comprenant une paroi latérale et une paroi inférieure et ayant une extrémité ouverte ; et un matériau d'étanchéité pour sceller de manière étanche ladite extrémité ouverte. Le condensateur électrolytique comporte une feuille thermoconductrice qui est disposée entre l'élément de condensateur et la surface intérieure du boîtier externe et/ou le matériau d'étanchéité.
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JP2012157533A JP2014022442A (ja) | 2012-07-13 | 2012-07-13 | 電解コンデンサ |
JP2012-157533 | 2012-07-13 |
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PCT/JP2013/068688 WO2014010569A1 (fr) | 2012-07-13 | 2013-07-08 | Condensateur électrolytique |
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WO2023217701A1 (fr) * | 2022-05-09 | 2023-11-16 | Tdk Electronics Ag | Composant de condensateur, utilisation d'un composant de condensateur et procédé de fabrication |
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JP6078509B2 (ja) * | 2014-10-03 | 2017-02-08 | ルビコン株式会社 | 固体電解コンデンサ |
ITUB20154115A1 (it) * | 2015-10-01 | 2017-04-01 | Kendeil S R L | Configurazione di condensatore elettrolitico autoestinguente |
KR101897155B1 (ko) * | 2016-11-30 | 2018-09-10 | 주식회사 뉴인텍 | 리드선 중공 코어 삽입형 구조 개선 원통형 커패시터 |
CN117334474A (zh) * | 2022-06-23 | 2024-01-02 | 中兴通讯股份有限公司 | 铝电解电容器及其制造方法 |
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JPH11274001A (ja) * | 1998-01-19 | 1999-10-08 | Hitachi Ltd | 電力貯蔵装置及びこれを用いた電力変換装置 |
JP2001279196A (ja) * | 2000-03-30 | 2001-10-10 | Sliontec Corp | 無基材熱伝導性粘着テープ・シート及びその製造方法 |
JP2011219511A (ja) * | 2010-04-02 | 2011-11-04 | Somar Corp | 熱伝導性粘着シート |
WO2011145523A1 (fr) * | 2010-05-19 | 2011-11-24 | 日東電工株式会社 | Feuille adhésive thermoconductrice |
-
2012
- 2012-07-13 JP JP2012157533A patent/JP2014022442A/ja active Pending
-
2013
- 2013-07-08 WO PCT/JP2013/068688 patent/WO2014010569A1/fr active Application Filing
- 2013-07-12 TW TW102125156A patent/TW201403644A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11274001A (ja) * | 1998-01-19 | 1999-10-08 | Hitachi Ltd | 電力貯蔵装置及びこれを用いた電力変換装置 |
JP2001279196A (ja) * | 2000-03-30 | 2001-10-10 | Sliontec Corp | 無基材熱伝導性粘着テープ・シート及びその製造方法 |
JP2011219511A (ja) * | 2010-04-02 | 2011-11-04 | Somar Corp | 熱伝導性粘着シート |
WO2011145523A1 (fr) * | 2010-05-19 | 2011-11-24 | 日東電工株式会社 | Feuille adhésive thermoconductrice |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2023217701A1 (fr) * | 2022-05-09 | 2023-11-16 | Tdk Electronics Ag | Composant de condensateur, utilisation d'un composant de condensateur et procédé de fabrication |
Also Published As
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JP2014022442A (ja) | 2014-02-03 |
TW201403644A (zh) | 2014-01-16 |
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