Fan subassembly for gas water heater

Abstract

The invention discloses a fan subassembly for a gas water heater. The fan subassembly comprises a smoke inlet duct, a volute mounting plate, a volute module, a centrifugal wind wheel, a motor support and a motor. The smoke inlet duct is provided with a front side plate, a left side plate, a right side plate and a rear side plate. The volute module is provided with a volute front plate, a volute air channel plate, a volute rear plate, a smoke outlet connecting plate and an outlet flue. Volute air channel plate protruding parts penetrate volute front plate long-thin holes to be bent and fastened; and the volute air channel plate protruding parts penetrate volute rear plate long-thin holes to be bent and fastened. Front side plate protruding parts respectively penetrate left side plate long-thin holes and right side plate long-thin holes to be bent and fastened, and rear side plate protruding parts respectively penetrate left side plate long-thin holes and right side plate long-thin holes to be bent and fastened. By the adoption of the technical scheme, the fan subassembly effectively resists oil fume corrosion and prolongs service life; the product is simple in structure, the tooling die cost is low, a motor capacitor is convenient to install, the production efficiency is improved, no gap is formed at the bent position of the smoke inlet duct, and the problem of smoke leakage is solved.

Description

technical field [0001] The invention relates to a gas water heater, in particular to a fan unit for a fan of a gas water heater. Background technique [0002] At present, in the existing technology, the relevant parts installed in the fan part of the gas water heater are fixedly connected by welding or riveting, and the welding or riveting is easily corroded and damaged; the patent with the publication number of 203586551U discloses a forced exhaust ventilation device for a gas water heater. Although it solves the problem of easy corrosion and damage of welding or riveting joints, the fixed connection method of the outer buckle wrapping the outer flanging used in this invention patent has complicated product structure, high cost of tooling and mold, and low production efficiency. Due to the insufficient wrapping of the structure at the bend of the smoke inlet duct, there are certain gaps, and there is smoke leakage. Contents of the invention [0003] The technical problem...

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Problems solved by technology

[0002] At present, in the existing technology, the relevant parts installed in the fan part of the gas water heater are fixedly connected by welding or riveting, and the welding or riveting is easily corroded and damaged; the patent with the publication number of 203586551U discloses a forced exhaust ventilation device for a gas water heater. Although it solves the problem of easy corrosion and damage of welding or riveting joints, the fixed connection method of the outer buckle wrapping the outer flanging used in this invention patent has complicated product structure, high cost of tooling and mold, and low production efficiency. Due to the insufficient wrapping of the structure at the bend of the smoke inlet duct, there is a certain gap, and there is a phenomenon of smoke leakage

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