US 12,104,610 B2
Combined fan structure
Zixing Xie, Guangdong (CN); and Yong Wang, Guangdong (CN)
Assigned to SHENZHEN YONGYIHAO ELECTRONICS CO., LTD, Shenzhen (CN)
Filed by SHENZHEN YONGYIHAO ELECTRONICS CO., LTD., Guangdong (CN)
Filed on Nov. 27, 2023, as Appl. No. 18/520,504.
Application 18/520,504 is a continuation of application No. PCT/CN2022/138746, filed on Dec. 13, 2022.
Claims priority of application No. 202210966864.3 (CN), filed on Aug. 11, 2022.
Prior Publication US 2024/0151235 A1, May 9, 2024
Int. Cl. F04D 25/16 (2006.01); F04D 25/06 (2006.01); F04D 29/64 (2006.01)
CPC F04D 25/166 (2013.01) [F04D 25/0693 (2013.01); F04D 29/64 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A combined fan structure, comprising a plurality of sub-fans and a connector connected between each two adjacent sub-fans of the plurality of sub-fans, wherein each of the plurality of sub-fans comprises an impeller mounting shell and an impeller assembly mounted on the impeller mounting shell, each of two sidewalls of the impeller mounting shell away from each other is respectively configured with two sockets, two ends of the impeller mounting shell at each of the two sidewalls of the impeller mounting shell each are respectively configured with one of the two sockets, two sidewalls of the two sockets away from each other are each configured with an insertion opening configured for the connector to be inserted into the insertion opening of a respective one of the two sockets, two sidewalls of each of the two sockets adjacent to the insertion opening are respectively configured with a limiting bar, a limiting channel is formed between the limiting bar and a bottom of each of the two sockets, and the limiting channel is in communication with the insertion opening;
a snapping groove is defined at the bottom of each of the two sockets, the connector comprises a connecting plate body and two elastic stoppers on the connecting plate body, two ends of the connecting plate body away from each other are respectively configured with an operating hole, each of the two elastic stoppers comprises an elastic flap and a hook connected to the elastic flap, a first end of the elastic flap is connected to a wall of the operating hole, the hook is disposed at a second end of the elastic flap and extends out of the operating hole, and when the connecting plate body is inserted in a respective one of the two sockets, the hook can be snapped in the snapping groove,
wherein the impeller mounting shell comprises an inner mounting bracket and an outer mounting housing, the impeller assembly is disposed on the inner mounting bracket, the two sockets are defined at the outer mounting housing, the outer mounting housing is configured with a mounting hole, the inner mounting bracket is arranged in the mounting hole, the inner mounting bracket is connected to an inner wall of the mounting hole through a plurality of connecting blocks, and a closed and communicated wiring channel is formed between a circumferential surface of the inner mounting bracket and the inner wall of the mounting hole.