Driving unit structure of drum washing machine

Abstract

The invention discloses a combining structure between a stator and a drum used for a washing device, which comprises a plurality of dropping height parts and non-dropping height parts formed through a radial shape on the posterior wall surface of the drum; a combining part which is formed respectively prominently at central side part for each dropping height part; a stator; a rotor which is arranged outside the stator and forms a motor together with the stator; a supporting rib, which is arranged along the integral position that the inner wall surface for the separation rib of the stator in the posterior wall surface of the drum is arranged, is used for supporting the inner wall surface of the separation rib. The invention has the advantages of correctly deciding the assembly position, deciding the combining position of the stator more easily when the stator is assembled due to the function of the supporting rib, avoiding dilapidation between the connecting parts for the stator and the drum even the vibration is produced during washing and minimizing damage danger for the combining position between the stator and 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

But in the weight of above-mentioned stator 6 just just be more than 1.5kg, and in the motor of large-capacity front-loading washing machine of about 600-2000RPM, because the weight of stator 6 and the vibration during high-speed rotation, and the rocking of 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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