Tube for heat exchanger

Patent metadata

Field	Value
Publication number	US-10113813-B2
Application number	US-201515110413-A
Country	US
Kind code	B2
Filing date	Feb 13, 2015
Priority date	Feb 21, 2014
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

A tube for a heat exchanger, and more particularly, a tube for a heat exchanger, which has a first reinforcement portion corresponding to a curved section of a tube and a second reinforcement portion attached to the first reinforcement portion formed at both ends of an inner fin so as to increase the strength of both ends in the air flow direction of the tube.

First claim

The invention claimed is:

1. A tube for a heat exchanger, which is connected between a pair of header tanks of the heat exchanger to form a heat exchanging medium passage and has an inner fin disposed at an inside thereof, the tube comprising:
plane portions disposed in parallel to each other in an air flow direction;
curved portions integrally formed on both sides of the plane portions to connect the plane portions with each other; and
first reinforcement portions and second reinforcement portions formed on both end portions of the inner fin, the first reinforcement portions bonded to inner surfaces of the curved portions and the second reinforcement portions extended from the first reinforcement portions and bonded to inner surfaces of the first reinforcement portions, wherein one of the first reinforcement portions, one of the second reinforcement portions, and one of the curved portions share a common center of curvature, wherein the first reinforcement portions and the second reinforcement portions are continuously formed from both of the end portions of the inner fin without being broken and have a same curvature as each of the curved portions of the tube, and wherein the first reinforcement portions, the second reinforcement portions, and the inner fin have the same thickness and are formed thinner than the curved portions and the plane portions.

2. The tube for the heat exchanger according to claim 1 , wherein the tube is formed by bending a first plate, and the first plate has a first partition wall-forming portion and a second partition wall-forming portion formed on given areas of both end portions thereof and a partition wall formed by bonding the first partition wall-forming portion and the second partition wall-forming portion to each other to divide an internal space of the tube into a first space portion and a second space portion in the air flow direction of the tube.

3. The tube for the heat exchanger according to claim 2 , wherein the first plate comprises: a first extension portion extended from the end portion of the first partition wall-forming portion and bonded to an opposite surface of the first partition wall-forming portion to a surface of the first partition wall-forming portion contacted with the second partition wall-forming portion; and a second extension portion extended from the end portion of the second partition wall-forming portion and bonded to an opposite surface of the second partition wall-forming portion to a surface of the second partition wall-forming portion contacted with the first partition wall-forming portion.

4. The tube for the heat exchanger according to claim 3 , wherein the first partition wall-forming portion and the second partition wall-forming portion have a bonding area formed to bond given areas of the first partition wall-forming portion and the second partition wall-forming portion to each other on an outside of the tube and a space-forming area formed at a first angle on remaining areas of the first partition wall-forming portion and the second partition wall-forming portion to form a third space portion among the first partition wall-forming portion, the second partition wall-forming portion and the inner fin.

5. The tube for the heat exchanger according to claim 4 , wherein the first angle is in a range of 10 to 30°.

6. The tube for the heat exchanger according to claim 4 , wherein the first partition wall-forming portion and the second partition wall-forming portion have a second angle formed when coming into contact with an external surface of the tube, and the second angle is in a range of 5 to 15°.

7. The tube for the heat exchanger according to claim 6 , wherein the inner fin has a third angle formed between a reference line vertical to the air flow direction with respect to a center of a curvature radius of the curved portions of the tube and a line connecting an end of the second reinforcement portion and the center of the curvature radius of the curved portions of the tube, and the third angle is in a range of 10 to 45°.

8. The tube for the heat exchanger according to claim 2 , wherein the inner fin is formed by bending a second plate, and the second plate has bonding portions and partitioning portions alternately formed thereon, the bonding portions being bonded to the plane portions of the tube to partition the internal space of the tube into a plurality of space portions and the partitioning portions being bent from the bending portions to partition the internal space of the tube in the air flow direction.

9. The tube for the heat exchanger according to claim 8 , wherein the inner fin further comprises third reinforcement portions extended from the second reinforcement portions and bonded to the bonding portions.

10. The tube for the heat exchanger according to claim 8 , wherein a clad material is applied to an external surface of the first plate, and the clad material is applied to both side surfaces of the second plate, respectively.

11. The tube for the heat exchanger according to claim 8 , wherein a clad material is applied to both surfaces of the first plate and the clad material is not applied to both surfaces of the second plate.

12. The tube for the heat exchanger according claim 8 , wherein the first plate has a thickness in a range of 0.1 to 0.2 mm.

13. The tube for the heat exchanger according to claim 8 , wherein the second plate has a thickness in a range of 0.05 to 0.12 mm.

14. A tube for a heat exchanger, the tube connected between a pair of header tanks of the heat exchanger to form a heat exchanging medium passage, the tube having an inner fin disposed at an inside thereof, the tube comprising:
plane portions disposed in parallel to each other in an air flow direction;
curved portions integrally formed on both sides of the plane portions to connect the plane portions with each other; and
first reinforcement portions and second reinforcement portions formed on both end portions of the inner fin, the second reinforcement portions extending from the first reinforcement portions, one of the first reinforcement portions and the second reinforcement portions bonded to inner surfaces of the curved portions, and an other of the first reinforcement portions and the second reinforcement portions bonded to the one of the first reinforcement portions and the second reinforcement portions, wherein one of the first reinforcement portions, one of the second reinforcement portions, and one of the curved portions share a common center of curvature, and wherein the first reinforcement portions and the second reinforcement portions are continuously formed from both of the end portions of the inner fin without being broken and have a same curvature as each of the curved portions of the tube, and wherein the first reinforcement portions, the second reinforcement portions, and the inner fin have the same thickness and are formed thinner than the curved portions and the plane portions.

Assignees

• Hanon Systems

Inventors

• Lim Hong-Young
• Song Jun-Young
• Lee Dong-Suk
• Shin Sung-Hong
• Oh Kwang-Hun
• Jo Wi-Sam
• Kwon Yong-Sung
• Lee Sun-Mi
• Davidson Daniel
• Whitlow Greg
• Dobner Jiri
• Kim Young-Sang
• Kim Jung-Ho
• Jeong Sun-An
• Jin Yeong-Ho

Classifications

• F28F3/025 Primary

  the means being corrugated, plate-like elements · CPC title

• F28D1/0391

  a single plate being bent to form one or more conduits · CPC title

• F28F2225/04

  for conduits · CPC title

• F28F1/40 Primary

  the means being only inside the tubular element · CPC title