US 12,433,198 B2
Outdoor walking equipment
Dezhong Yang, Nanjing (CN); Yangzi Liu, Nanjing (CN); Li Li, Nanjing (CN); and Ju Li, Nanjing (CN)
Assigned to Nanjing Chervon Industry Co., Ltd., Nanjing (CN)
Filed by Nanjing Chervon Industry Co., Ltd., Nanjing (CN)
Filed on Jun. 8, 2022, as Appl. No. 17/835,623.
Claims priority of application No. 202110714441.8 (CN), filed on Jun. 25, 2021.
Prior Publication US 2022/0408648 A1, Dec. 29, 2022
Int. Cl. A01D 69/02 (2006.01); A01D 34/00 (2006.01); A01D 34/64 (2006.01); A01D 34/78 (2006.01); B60L 50/60 (2019.01); B60L 50/64 (2019.01); B60L 53/53 (2019.01); B60L 53/60 (2019.01); B60L 58/18 (2019.01); H01G 11/34 (2013.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/46 (2006.01); H01M 50/209 (2021.01); H01M 50/213 (2021.01); H01M 50/247 (2021.01); H01M 50/249 (2021.01); H01M 50/562 (2021.01); H02J 7/00 (2006.01); A01D 101/00 (2006.01); H01M 10/052 (2010.01)
CPC A01D 69/02 (2013.01) [A01D 34/001 (2013.01); A01D 34/64 (2013.01); A01D 34/78 (2013.01); B60L 50/64 (2019.02); B60L 50/66 (2019.02); B60L 53/53 (2019.02); B60L 53/60 (2019.02); B60L 58/18 (2019.02); H01G 11/34 (2013.01); H01M 10/4221 (2013.01); H01M 10/441 (2013.01); H01M 10/46 (2013.01); H01M 50/209 (2021.01); H01M 50/213 (2021.01); H01M 50/247 (2021.01); H01M 50/249 (2021.01); H01M 50/562 (2021.01); H02J 7/0013 (2013.01); H02J 7/0063 (2013.01); A01D 2101/00 (2013.01); B60L 2200/22 (2013.01); B60L 2200/40 (2013.01); H01M 10/052 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); H02J 2207/20 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A riding lawn mower, comprising:
a frame;
a seat mounted to the frame;
a walking assembly comprising at least one walking wheel supporting the frame;
a walking motor configured to drive the at least one walking wheel to rotate;
a cutting assembly comprising at least one cutting piece for cutting grass;
a driving motor configured to drive the cutting assembly;
a first energy storage device configured to supply power to at least one of the walking motor or the driving motor, the first energy storage device comprising at least one first energy storage unit, the first energy storage device detachably mounted to the frame and enabled to supply power to a handheld power tool when detached from the riding lawn mower; and
a second energy storage device configured to supply power to at least one of the walking motor or the driving motor, the second energy storage device comprising at least one second energy storage unit;
wherein a ratio of a total energy of the second energy storage device to a total energy of the first energy storage device is greater than or equal to 2 and less than or equal to 20 and the first energy storage device and the second energy storage device are discharged in combination only when a voltage difference between the first energy storage device and the second energy storage device is within a pre-defined range.