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US 12,158,311 B2Granted
Fin of heat exchanger, method for manufacturing the same, heat exchanger, and air conditioning apparatus
AssigneeDaikin Industries, Ltd.
InventorMami Iwasaki
Life of this patent
Estimating the term…
Abstract
A fin of a heat exchanger includes: a substrate including aluminum or an aluminum alloy, the substrate including a plurality of holes or a plurality of cutout portions in which a plurality of heat transfer tubes are to be disposed respectively; and an organic layer disposed on an end face of the substrate.
Claims24
A fin of a heat exchanger comprising:
- a substrate including aluminum or an aluminum alloy, wherein the substrate comprises a plurality of holes or a plurality of cutout portions in which a plurality of heat transfer tubes are to be disposed respectively;
- and
- an organic layer disposed on an end face of the substrate,
- wherein the organic layer includes a first organic layer, a second organic layer, and a third organic layer,
- wherein the second organic layer and the first organic layer are disposed on the end face of the substrate in order from a substrate side,
- wherein the third organic layer, the second organic layer, and the first organic layer are disposed on a windward surface or a leeward surface of the substrate in order from the substrate side.
3 more elements
A method for manufacturing a fin of a heat exchanger, the method comprising:
- step (a) of preparing a metal plate including aluminum or an aluminum alloy having a third organic layer on a surface of the metal plate;
- step (b) of cutting the metal plate into a substrate;
- and
- step (c) of forming a first and a second organic layers on the third organic layer and a cut face of the substrate,
- wherein the second organic layer and the first organic layer are disposed on an end face of the substrate in order from a substrate side,
- wherein the third organic layer, the second organic layer, and the first organic layer are disposed on a windward or a leeward surface of the substrate in order from the metal plate, such that the third organic layer applied to a surface of the aluminum or the aluminum alloy.
3 more elements
Dependencies are inferred from the claim text.