US 12,234,835 B2
Heat collecting pump and washing appliance
Jianqing Wu, Foshan (CN); Richao Liu, Foshan (CN); Xiang Li, Foshan (CN); Canhua Qiu, Foshan (CN); and Pingping Xu, Foshan (CN)
Assigned to FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING CO., LTD., Foshan (CN)
Filed by FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING CO., LTD., Foshan (CN)
Filed on Nov. 22, 2023, as Appl. No. 18/518,391.
Application 18/518,391 is a continuation of application No. 17/921,345, granted, now 11,879,479, previously published as PCT/CN2021/089998, filed on Apr. 26, 2021.
Claims priority of application No. 202010365913.9 (CN), filed on Apr. 30, 2020; application No. 202020714834.X (CN), filed on Apr. 30, 2020; application No. 202011241371.0 (CN), filed on Nov. 9, 2020; and application No. 202022578284.6 (CN), filed on Nov. 9, 2020.
Prior Publication US 2024/0084819 A1, Mar. 14, 2024
Int. Cl. F04D 29/44 (2006.01); A47L 15/42 (2006.01); F04D 29/58 (2006.01)
CPC F04D 29/447 (2013.01) [F04D 29/586 (2013.01); A47L 15/4225 (2013.01); A47L 15/4285 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A heat collecting pump, comprising:
a housing defining an accommodation cavity, the housing having a fluid inlet and a fluid outlet;
a heating device disposed in the accommodation cavity;
a drive device connected to the housing and configured to drive a fluid to flow from the fluid inlet to the fluid outlet; and
a flow guiding element disposed in the accommodation cavity, wherein:
the flow guiding element has an inner wall defining a fluid inlet channel in communication with the fluid inlet;
a fluid discharge channel is defined between an outer wall of the flow guiding element and an inner wall of the accommodation cavity;
the fluid discharge channel is in communication with the fluid inlet channel and the fluid outlet, respectively;
the flow guiding element comprises an annular portion, and a plurality of flow guiding pieces connected to a periphery of the annular portion and arranged at intervals in a circumferential direction of the annular portion, each of the plurality of flow guiding pieces spiraling upwards in the circumferential direction of the annular portion;
in the circumferential direction of the annular portion, each of the plurality of flow guiding pieces has a first end and a second end opposite to the first end;
the heating device surrounds peripheral space of the flow guiding element; and
in a radial direction of the annular portion, a gap is defined between the first end and the annular portion and/or between the second end and the annular portion.