The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2024
Filed:
Aug. 13, 2020
Lg Electronics Inc., Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A heat exchanger includes: a copper pipe forming a refrigerant circulation passage; and a plurality of fins arranged at positions spaced apart from each other along one direction and coupled to an outer circumferential surface of the copper pipe, wherein the copper pipe includes: a plurality of straight tubes extending along the arranged direction of the plurality of fins; and a plurality of return bends connected to one end of one of the plurality of straight tubes and one end of another one of the plurality of straight tubes by welding, wherein burrs having a circumference greater than an outer diameter of each straight tube are formed at both ends of the plurality of straight tubes, a distance between a rim of the burr and an outer surface of the straight tube is 0.4 mm to 1.8 mm.