US 12,366,290 B2
Speed reducer casing and electric drive assembly
Yang Liu, Beijing (CN); Jianwen Li, Beijing (CN); Fayu Pan, Beijing (CN); and Yanan Huang, Beijing (CN)
Assigned to JING-JIN ELECTRIC TECHNOLOGIES CO., LTD., Beijing (CN)
Appl. No. 18/293,964
Filed by Jing-Jin Electric Technologies Co., Ltd., Beijing (CN)
PCT Filed May 16, 2022, PCT No. PCT/CN2022/093088
§ 371(c)(1), (2) Date Jan. 31, 2024,
PCT Pub. No. WO2023/010946, PCT Pub. Date Feb. 9, 2023.
Claims priority of application No. 202121795244.5 (CN), filed on Aug. 3, 2021.
Prior Publication US 2024/0337314 A1, Oct. 10, 2024
Int. Cl. F16H 57/04 (2010.01); B60K 1/00 (2006.01); F16H 57/029 (2012.01); F16H 57/031 (2012.01); F16H 57/02 (2012.01)
CPC F16H 57/0417 (2013.01) [B60K 1/00 (2013.01); F16H 57/029 (2013.01); F16H 57/031 (2013.01); F16H 57/0424 (2013.01); F16H 57/045 (2013.01); F16H 57/0457 (2013.01); F16H 57/0476 (2013.01); F16H 2057/02026 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02043 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A reducer housing comprising:
a liquid cooled heat dissipation structure at a bottom of the reducer housing and/or on a side wall of the reducer housing through which lubricating oil flows;
the liquid cooled heat dissipation structure including a coolant tank and a cover plate configured to seal the coolant tank, the coolant tank including two ends that are respectively provided with a liquid inlet and a liquid outlet; and
a plurality of convex structures and concave structures that are alternately disposed on a bottom of coolant tank so that two sides of the bottom of the coolant tank are both in a wavy shape,
wherein the cover plate or the side wall of the coolant tank are provided thereon with a plurality of flow guiding plates that are vertical to the bottom of the coolant tank and are disposed at positions that correspond to positions of the concave structures, the flow guiding plates configured to cooperate with the convex structures to form a continuous S-shaped passage for coolant to flow through.