Improved Structure of Air Duct of Volute of Blowing Suction Machine

Abstract

The invention discloses an improved structure of a blowing-sucking machine volute air channel. The improved structure comprises a volute, an electric motor chamber is formed in the upper side in the volute, the air channel is formed in the lower side in the volute, an electric motor is arranged in the electric motor chamber, an electric motor shaft stretches into the air channel and provided with an impeller, the impeller comprises an impeller disc, blades are arranged on the upper surface and the lower surface of the impeller disc, and ribs are arranged on the inner wall of the air channel and surround the outer edge of the impeller disc. Two air channel bodies are formed in the volute air channel by arranging the ribs inside, the volute air channel body above the ribs is used for collecting air which is sucked in through an electric motor air channel by the blades to achieve the purpose that heat of the electric motor is dissipated singly, and the volute air channel body below the ribs is the working air channel body for collecting the air and crushing leaves singly.

Description

technical field [0001] The invention relates to a leaf blower. Background technique [0002] The leaf blower is an outdoor cleaning tool, mainly used for cleaning and collecting fallen leaves. It blows away the leaves and dust on the ground by blowing air or puts the leaves into the bag by suction, and crushes the leaves before they enter the bag. [0003] Existing leaf blowing machines usually include a main casing, fan blades, motors, air ducts and control switches, etc. The fan blades connected to the motor are located in the volute air duct of the main casing, and it is driven by the motor in the volute wind. The high-speed rotation in the tunnel breaks the leaves and other sundries sucked into the room, and the broken sundries are discharged from the chip outlet and collected in the garbage bag. At the same time, the heat of the motor is sucked into the volute air duct to dissipate the heat of the motor. However, due to the pressure difference in the volute air duct f...

AI Technical Summary

Problems solved by technology

However, due to the pressure difference in the volute air duct formed by the left and right casings of the existing leaf blower, the heat of the motor is often difficult to be sucked into the volute air duct, resulting in poor heat dissipation of the motor. At the same time, in order to meet the temperature rise, The stack height and specifications of the motor are very large, which is a waste of cost and materials

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