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公开(公告)号:EP4113554A1
公开(公告)日:2023-01-04
申请号:EP20920866.9
申请日:2020-02-28
摘要: A capacitor 1 includes a capacitor element 3 having a predetermined liquid preparation held between a pair of electrodes 5, 7 facing each other across a separator 6, a body case 2 for housing the capacitor element 3, and a sealing member 4 made of rubber for sealing seals the body case 2. A supplying portion is provided in contact with the sealing member 4 to supply the liquid preparation held in the capacitor element 3 to the sealing member 4. The liquid preparation has a lipid-soluble sealing member deterioration preventing agent dissolved in a lipophilic solvent. The sealing member deterioration preventing agent supplied by the supplying portion to the sealing member 4 permeates the sealing member 4. The ratio by weight of the sealing member deterioration preventing agent in the sealing member 4 to the sealing member 4 is 0.1% by weight to 25 % by weight.
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公开(公告)号:EP4113555A1
公开(公告)日:2023-01-04
申请号:EP20921528.4
申请日:2020-02-28
摘要: A capacitor 1 includes a capacitor element 3 that holds a predetermined solution between an anode foil 5 and a cathode foil 7 wound up with a separator 6 in between, a body case 2 that is formed in the shape of a bottomed tube closed at one end with a wall 2a and open at the other end to have an opening 2b, a liquid supply sheet 10 that is arranged between the inner face of the case 2 and the outer face of the element 3, and a sealing member 4 that seals the opening 2b. The solution has a sealing member deterioration preventing agent dissolved in a lipophilic solvent. The sheet 10 has an absorption portion 10a that makes contact with the separator 6 to absorb the solution and a supply portion 10b that makes contact with the sealing member 4 to supply it with the solution.
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公开(公告)号:EP4030453A1
公开(公告)日:2022-07-20
申请号:EP20862251.4
申请日:2020-07-29
摘要: A capacitor 1 includes a capacitor element 3 holding a predetermined solution between an anode foil 5 and a cathode foil 7 that are wound up with a separator 6 in between, a body case 2 for housing the capacitor element 3, and a sealing member 4 for sealing the body case 3. A part of the separator 6 makes contact, at a plurality of points or over an area, with the face of the sealing member 4 facing the capacitor element 3 so as to rest on that face. The solution contains, dissolved in a lipophilic solvent, a sealing member deterioration preventing agent that solidifies by oxidation. The solution is supplied through the separator 6 to the sealing member 4 and permeates the sealing member 4, so that a coating 17 resulting from the sealing member deterioration preventing agent solidifying coats the outer face of the sealing member 4, leaving the solution present in the part of the sealing member 4 closer to the capacitor element 3 than the coating 17.
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公开(公告)号:EP4394832A1
公开(公告)日:2024-07-03
申请号:EP22861347.7
申请日:2022-08-23
摘要: An electrolytic capacitor 1 includes: a capacitor element 3 in which an anode foil 5 and a cathode foil 7 each having a dielectric oxide film face each other across a separator 6; a body case 2 that houses the capacitor element 3; and a sealing member 4 that seals the body case 2. An electrolyte and a hydrophilic compound are held between the anode foil 5 and the cathode foil 7. A sealing member deterioration preventing agent immiscible with the hydrophilic compound is arranged inside the body case 2.
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公开(公告)号:EP4030452A1
公开(公告)日:2022-07-20
申请号:EP19945120.4
申请日:2019-09-13
摘要: A capacitor 1 includes a capacitor element 3 holding a predetermined solution between an anode foil 5 and a cathode foil 7 that are wound up with a separator 6 in between, a body case 2 for housing the capacitor element 3, and a sealing member 4 for sealing the body case 2. A part of the separator 6 makes contact, at a plurality of points or over an area, with the face of the sealing member 4 facing the capacitor element 3 so as to rest on that face. The solution contains, dissolved in a lipophilic solvent, a sealing member deterioration preventing agent that solidifies by oxidation. The solution is supplied through the separator 6 to the sealing member 4 and permeates the sealing member 4, so that a coating 17 resulting from the sealing member deterioration preventing agent solidifying coats the outer face of the sealing member 4, leaving the solution present in the part of the sealing member 4 closer to the capacitor element 3 than the coating 17.
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公开(公告)号:EP3855464A1
公开(公告)日:2021-07-28
申请号:EP18934106.8
申请日:2018-09-20
摘要: An electrolytic capacitor 1 comprises: a capacitor element 10 in which an anode foil 11 and a cathode foil 12 are wound, with a separator 13 sandwiched therebetween, and a prescribed solution is held between the anode foil 11 and the cathode foil 12; a body case 3 housing the capacitor element 10; and a sealing member 5 which seals the body case 3. The solution is a lipid-soluble antioxidant dissolved in a lypophilic solvent and the separator 13 is configured to be in contact with the sealing member 5.
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