Driving unit structure of drum washing machine

Abstract

The invention relates to a combining structure between a stator and a drum used for a washing device. The roller washing machine comprises a drum which has a posterior wall surface and is of drum shape with the inner part hollow; a stator comprises an iron core part forming a plurality of sawteeth, a coil reeved on the sawteeth, a posterior wall surface combined at the drum and surrounded around a first insulator at the front part of the iron core part and a second insulator at the rear part of the iron core part, a plurality of reeving ribs which protrude to the front side at the periphery in front of the first insulator and surround a part of the coil; the rotor which is arranged outside the stator and forms a motor together with the stator; a fixed part which is arranged between the posterior wall surface of the drum and each reeving rib of the stator; each reeving rib can be fixed on the posterior wall surface of the drum.

Description

technical field [0001] The present invention relates to a front-loading washing machine, and more specifically, to a drive unit of a direct-connection front-loading washing machine. Background technique [0002] Generally speaking, according to different driving methods, front-loading washing machines can be divided into the following types: the indirect connection type that indirectly transmits the driving force of the motor to the drum through the belt wound around the motor pulley and the drum pulley; the rotor of the BLDC motor A direct connection type that directly connects to the drum and directly transmits the driving force of the motor to the drum. [0003] In the method in which the driving force of the motor is not directly transmitted to the drum, but is transmitted through a belt wound around the motor pulley and the drum pulley, energy loss occurs during the driving force transmission process, and a lot of noise is generated during the power transmission process...

AI Technical Summary

Problems solved by technology

However, the weight of the above-mentioned stator 6 is more than 1.5kg, and the dehydration rotation speed is about 600-2000RPM in a large-capacity drum washing machine motor, due to the weight of the stator 6 and vibration during high-speed rotation, and the shaking of the rotor 5 and deformation, etc., the connection between the stator 6 and the barrel 2 is easily damaged

[0018] Moreover, in a drum washing machine using a BLDC motor and connecting the stator 6 to the rear wall of the tub 2, the diameter of the stator 6 is almost parallel to the ground, so the vibration generated during the operation of the washing machine will cause the stator 6 and the tub 2 to The damage of the connection between the more serious

[0019] Therefore, in order to prevent damage, it is necessary to have a barrel bracket (illustration omitted) made of metal in the conventional structure. will reduce productivity

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