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FAN AND WATER HEATER PROVIDED WITH THE SAME, AND IMPELLER AND WATER HEATER PROVIDED WITH THE SAME
FAN AND WATER HEATER PROVIDED WITH THE SAME, AND IMPELLER AND WATER HEATER PROVIDED WITH THE SAME
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机译:风扇和水加热器具有相同的功能,而叶轮和水加热器具有相同的功能
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摘要
A fan includes: an impeller including a main plate having a first plane, a plurality of first blades each formed the first plane, and a shroud formed integrally with the plurality of first blades; a fan case; a drive source; and a rotation shaft. The first blades each include a linearly protruding region that is linearly increased in height from an outer circumferential side to an inner circumferential side, and a curvedly protruding region that is curvedly increased in height from the outer circumferential side to the inner circumferential side, the height extending in a direction in which each first blade protrudes. The linearly protruding region is welded to the main plate. Accordingly, a highly durable fan can be implemented that allows sufficient durability to be maintained even under a high temperature environment or an acid environment.
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