US 12,429,292 B2
Fin structure and heat exchanger
Wu Xiang, Guangdong (CN); Quyang Ma, Guangdong (CN); Ge Yu, Guangdong (CN); Kai Xia, Guangdong (CN); Weixue Lin, Guangdong (CN); and Shiqiang Zhang, Guangdong (CN)
Assigned to Gree Electric Appliances, Inc. of Zhuhai, Guangdong (CN)
Appl. No. 17/910,597
Filed by Gree Electric Appliances, Inc. of Zhuhai, Guangdong (CN)
PCT Filed Mar. 5, 2021, PCT No. PCT/CN2021/079352
§ 371(c)(1), (2) Date Sep. 9, 2022,
PCT Pub. No. WO2021/258775, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 202010588660.1 (CN), filed on Jun. 24, 2020.
Prior Publication US 2023/0136711 A1, May 4, 2023
Int. Cl. F28F 1/32 (2006.01)
CPC F28F 1/32 (2013.01) [F28F 2215/10 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A fin structure, comprising:
a fin base, wherein the fin base is provided with a tube hole for a heat exchange tube to passthrough, and the fin base is a corrugated fin; and
a plurality of convex parts, wherein the plurality of convex parts are disposed on the fin base, and the plurality of convex parts surround an outer circumference of the tube hole;
wherein the fin base comprises a plurality of first fin portions and a plurality of second fin portions, at least two of the plurality of second fin portions connected between two of the plurality of first fin portions, a dimension L1 of any one of the first fin portions along the corrugation length direction of the fin base is greater than a dimension L2 of any one of the second fin portions along the corrugation length direction of the fin base;
wherein the plurality of convex parts comprise an annular convex part and a lateral convex part, the annular convex part being convexly disposed on the one of the plurality of first fin portions, the lateral convex part being convexly disposed on the one of the plurality of second fin portions.