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:
May. 16, 2017
Filed:
Apr. 20, 2010
Young MO Kim, Gyeonggi-do, KR;
Young Sik Choi, Seoul, KR;
Young Mo Kim, Gyeonggi-do, KR;
Young Sik Choi, Seoul, KR;
KYUNGDONG NAVIEN CO., LTD., Gyeonggi-Do, KR;
Abstract
The present invention relates to a method for braze-welding a fixing plate and a flow channel cap in a heat exchanger, and to a heat exchanger produced by same. The method includes: providing a fixing platehaving a plurality of resilient protrusionsfor snap-fitting; providing a flow channel cap, one endof which is L-shaped to be snap-fitted onto the resilient protrusionand the other end of which has a stepped portion; inserting the stepped portionof the flow channel capinto the resilient protrusionsuch that an endof the stepped portioncontacts an end of the resilient protrusion; pressing the L-shaped endof the flow channel capagainst the resilient protrusionof the fixing platesuch that the L-shaped endis snap-fitted onto the resilient protrusionand thus tightly contacts the fixing plate, and the resilient protrusionthus press-contacts the endof the stepped portionto enable an endof the stepped portionto tightly contact the fixing plate; and braze-welding the fixing plateand the flow channel cap. The above-described method eliminates a spot-welding process which might otherwise be performed prior to the process of braze-welding the fixing plate and the flow channel cap in conventional heat exchangers, to thereby reduce manufacturing costs and labor and to improve productivity.