Structure for detecting rotation of spray arms of household appliance and household appliance

A system for detecting rotation of spray arms of a household appliance including at least two spray arms spaced apart in the household appliance along a longitudinal axis, comprising:

• a first detection magnet arranged on a first spray arm of the at least two spray arms;
• a second detection magnet arranged on a second spray arm of the at least two spray arms, a magnetic field direction of the second detection magnet being different from a magnetic field direction of the first detection magnet;
• a first magnetic sensor arranged in a first position inside the household appliance and adapted to sense a motion status of the first detection magnet;
• and
• a second magnetic sensor, arranged in a second position inside the household appliance and adapted to sense a motion status of the second detection magnet.

A household appliance, comprising:

• two or more spray arms spaced apart in the household appliance along a longitudinal axis;
• and
• a system detecting a rotation of the two or more spray arms, comprising:
• a first detection magnet arranged on a first spray arm of the two or more spray arms;
• a second detection magnet arranged on a second spray arm of the two or more spray arms, a magnetic field direction of the second detection magnet is different from a magnetic field direction of the first detection magnet;
• and
• a magnetic sensor arranged in the household appliance and sensing a motion status of the first detection magnet and the second detection magnet.