Cooker hood

Abstract

The invention provides a double-wind wheel ventilator which comprises a lower body and an upper body. The upper body is provided with an electric motor as well as a rotor shaft, a left spiral case, a right spiral case, a left wind wheel and a right wind wheel arranged on the electric motor. A shockproof fixing ring is arranged between the electric motor and the spiral cases. The shockproof fixing ring consists of an inner ring, an outer ring and a shockproof elastic ring. The shockproof elastic ring is arranged between the inner ring and the outer ring. The electric motor is fixedly arranged on the inner ring end surface of the shockproof elastic ring. The rotor shaft of the electric motor extends out to the two side of the electric motor. The left end and the right end of the rotor shaft are fixedly provided with the left wind wheel and the right wind wheel correspondingly. The joint surface of the left spiral case and the right spiral case and the outer ring in the shockproof fixing ring are movably connected. The left spiral case and the right spiral case are respectively provided with a suction opening corresponding to the left wind wheel and the right wind wheel. After adopting the scheme, the invention can reach the advantages of increasing the air suction and exhaust amount, reducing the noise and being easy to disassemble and wash.

Description

Technical field: [0001] The invention relates to the technical field of range hoods, in particular to a range hood with double wind wheels that increases suction and exhaust volume, effectively reduces noise, and is easy to disassemble and clean. Background technique: [0002] Traditional range hoods are all single-wind wheel, and the corresponding motor has only one side to lead out the rotor shaft. When the range hood with this structure is working, due to its asymmetry, the wear and noise of the motor rotating bearing are increased. Moreover, the general stove is arranged with two stoves on the left and right, and the single suction port of the single wind wheel range hood can only be arranged between the two stoves, and the draft effect is not ideal; The generated noise is loud. [0003] The single-wheel range hood needs to ensure its suction and exhaust volume, so the length of the wind wheel is long, and it cannot be disassembled and cleaned after installation, so the...

AI Technical Summary

Problems solved by technology

[0002] Traditional range hoods are all single-wind wheel, and the corresponding motor has only one side to lead out the rotor shaft. When the range hood with this structure is working, due to its asymmetry, the wear and noise of the motor rotating bearing are increased. Moreover, the general stove is arranged with two stoves on the left and right, and the single suction port of the single wind wheel range hood can only be arranged between the two stoves, and the draft effect is not ideal; Generates a lot of noise

[0003] The single-wheel range hood needs to ensure its suction and exhaust volume, so the length of the wind wheel is long, and it cannot be disassembled and cleaned after installation, so the suction and discharge performance, noise and hygiene indicators of the range hood cannot be guaranteed after use

[0004] In addition, the existing volute is integrally formed by metal welding, and its air outlet has a rectangular structure. When the air outlet is connected to the circular check valve assembly, there will be a dead angle in the volute that is not conducive to the high-speed movement of the airflow, causing air movement to be blocked. , reduce the suction and discharge volume

[0005] In addition, the defects of the existing anti-shock structure lead to large resonant noise, and the traditional range hoods are all packaged in the whole machine, requiring multiple support frames in the package, which seriously wastes the packaging space and increases the packaging cost.

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