Riding mower

A stand-on mower, comprising:

• a traveling mechanism, comprising a first drive wheel and a second drive wheel, configured to support the stand-on mower traveling on a ground;
• a frame configured to mount the traveling mechanism, the frame comprising a first longitudinal beam and a second longitudinal beam extending in a front-rear direction of the stand-on mower;
• a mowing mechanism comprising a mowing element for performing a mowing function;
• a power supply configured to supply power to at least the traveling mechanism and the mowing mechanism, the power supply comprising a plurality of battery packs;
• a support mechanism mounted on the frame, configured to carry an operator;
• and
• a circuit board assembly at least partially disposed between the first longitudinal beam and the second longitudinal beam, the circuit board assembly comprising a printed circuit board and a housing assembly accommodating the printed circuit board;
• wherein a maximum cutting width of the mowing mechanism is less than or equal to 40 inches;
• an angle α′ between an extension direction of the housing assembly and an extension direction of the first longitudinal beam is greater than or equal to 20° and less than or equal to 80°;
• and, in a width direction of the stand-on mower, a ratio of a maximum width L3′ of the housing assembly to a distance L1′ between an inner side of the first drive wheel and an inner side of the second drive wheel is greater than or equal to 0.8.

A stand-on mower, comprising:

• a traveling mechanism configured to support the stand-on mower traveling on a ground;
• a mowing mechanism comprising a mowing element for performing a mowing function;
• a support mechanism mounted on a frame, configured to carry an operator;
• and
• a power supply configured to supply power to the traveling mechanism and the mowing mechanism, the power supply comprising a plurality of battery packs, at least one of the plurality of battery packs being detachable;
• wherein the stand-on mower is configured with a minimum start-up state;
• in the minimum start-up state, at least one battery pack is installed and capable of providing current to the stand-on mower;
• and in the minimum start-up state, a weight of the stand-on mower is less than or equal to 320 kg.