Riding-type mower and current-limiting protection method thereof

A riding-type mower, comprising:

• a body frame;
• a seat disposed on the body frame;
• a mowing unit comprising a mowing element and a first motor configured to drive the mowing element;
• a walking unit comprising a road wheel and a second motor configured to drive the road wheel;
• a power supply device mounted on the body frame, wherein the power supply device comprises at least one battery pack configured to supply power to the riding-type mower;
• and
• an auxiliary function module comprising an universal serial bus interface for charging an electronic device;
• wherein electric energy output from the universal serial bus interface to the electronic device comes from the at least one battery pack.

A riding-type mower, comprising:

• a body frame;
• a seat disposed on the body frame;
• a mowing unit comprising a mowing element and a first motor configured to drive the mowing element;
• a walking unit comprising a road wheel and a second motor configured to drive the road wheel;
• a power supply device mounted on the body frame, wherein the power supply device comprises a plurality of battery packs configured to supply power to the riding-type mower, at least one of the plurality of battery packs is detachably mounted to the riding-type mower, each of the plurality of battery packs is provided with at least one battery cell group, and each battery cell group comprises a plurality of battery cells;
• and
• an auxiliary function module comprising an universal serial bus interface for charging an electronic device;
• wherein electric energy output from the universal serial bus interface to the electronic device comes from the plurality of battery packs.