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KR-20260067199-A - Heat exchanger for vehicles

KR20260067199AKR 20260067199 AKR20260067199 AKR 20260067199AKR-20260067199-A

Abstract

The heat exchanger comprises first and second header tanks arranged facing each other; and a heat exchanger comprising a plurality of first-row tubes and a plurality of second-row tubes fluidically connecting the first and second header tanks. Each of the first and second header tanks includes a first header to which the first-row tubes are connected; a second header to which the second-row tubes are connected; and a tank coupled to the first header and the second header. The first and second headers each include side walls that are in close contact with each other, and the first and second headers are coupled to the tank by a plurality of connecting tabs provided on the side walls.

Inventors

  • 김상욱
  • 김진수
  • 권준영

Assignees

  • 에스트라오토모티브시스템 주식회사

Dates

Publication Date
20260512
Application Date
20241105

Claims (14)

  1. First and second header tanks positioned facing each other; and It includes a heat exchanger comprising a plurality of single-row tubes and a plurality of double-row tubes fluidly connecting the first and second header tanks, and Each of the above first and second header tanks is A first header to which the above-mentioned single-row tube is connected; A second header to which the above two-row tube is connected; and It includes a tank combined with the first header and the second header, and The first and second headers each include side walls that are in close contact with each other, and The first and second headers are heat exchangers coupled to the tank by means of a plurality of fastening tabs provided on the side wall.
  2. In paragraph 1, A heat exchanger in which the plurality of fastening tabs are alternately arranged along the longitudinal direction of the first header tank and the second header tank and are bent in opposite directions to be in close contact with the outer surface of the tank.
  3. In paragraph 2, The above tank is provided with a fastening hole extending along the longitudinal direction, and The above plurality of fastening tabs are heat exchangers inserted into the fastening holes.
  4. In paragraph 1, The above side wall is a heat exchanger including a tank mounting portion on which the tank is mounted.
  5. In paragraph 4, A heat exchanger in which the tank seating portion is a stepped structure lower than the end of the side wall portion.
  6. In paragraph 1, The first and second header tanks above include baffles for closing the ends, and The above first and second header tanks are heat exchangers comprising a baffle assembly seating portion for assembling the baffles.
  7. In paragraph 6, The above baffle assembly seating portion is a heat exchanger that is a groove formed on the inner surface of the first and second header tanks.
  8. In paragraph 1, The first and second header tanks above include baffles for closing the ends, and The above baffle includes a fastening projection for fastening with the tank, the first header, and the second header, and The above tank, the above first header, and the above second header are heat exchangers having baffle assembly holes into which the above fastening projection is inserted.
  9. In paragraph 8, The above fastening projection has a portion inserted into the baffle assembly hole exposed to the outside, and A heat exchanger in which caulking is performed on the exposed portion above.
  10. In paragraph 1, The first and second header tanks above include baffles for closing the ends, and The above side wall is a heat exchanger having a baffle assembly groove for assembling the baffle.
  11. In paragraph 1, The above tank is configured so that its front end is in close contact with the inner surface of the first and second headers, and A heat exchanger configured such that the aforementioned tip portion performs a stopper function that restricts the insertion of the tube when the tube is inserted.
  12. First and second header tanks positioned facing each other; and It includes a heat exchanger comprising a plurality of single-row tubes and a plurality of double-row tubes fluidly connecting the first and second header tanks, and Each of the above first and second header tanks is A first header to which the above-mentioned single-row tube is connected; A second header to which the above two-row tube is connected; and It includes a tank combined with the first header and the second header, and Each of the above first and second headers is Bottom part; and It includes first and second side walls extending from each of the two ends of the bottom portion, and The second side wall of the first header and the second side wall of the second header are arranged to be in close contact with each other, The first and second headers are heat exchangers coupled to the tank by a plurality of first fastening tabs and second fastening tabs, respectively provided on the second side wall.
  13. In Paragraph 12, The above tank includes a fastening hole extending along the longitudinal direction, and A heat exchanger inserted into the fastening hole in a state where the first fastening tab and the second fastening tab are arranged alternately.
  14. In Paragraph 13, A heat exchanger configured such that the first and second fastening tabs are bent while inserted into the fastening holes and adhere to the outer surface of the tank.

Description

Heat exchanger for vehicles The present disclosure relates to a heat exchanger for automobiles. A heat exchanger, such as an evaporator, is a device that performs heat exchange with the surrounding air. For example, an evaporator is a device that absorbs heat from the surroundings to cause the evaporation of a refrigerant, and is configured to facilitate heat exchange between the refrigerant and the air through a core containing tubes through which the refrigerant flows and fins. Typically, a heat exchanger includes a pair of manifolds positioned facing each other and a core positioned between the manifolds. The core includes multiple tubes and fins positioned between the tubes. The manifolds of such a heat exchanger typically take the form of tanks and are formed by the combination of a header and a tank. In this respect, the manifold is also referred to as a header tank. A 3-piece manifold consisting of three parts has a large number of assembled components, which can cause the parts to come loose and separate during core assembly or product movement. Additionally, conventional 3-piece manifolds lack a function to stop the insertion of tubes when they are inserted into the manifold, which can result in the inserted tubes not being aligned properly, causing a problem that increases the pressure drop of the fluid. The matters described in the technical background section of this invention are written to enhance understanding of the background of the invention and may include matters that are not prior art already known in the field to which this technology belongs. FIG. 1 is a perspective view of a heat exchanger according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of a heat exchanger according to an embodiment of the present invention. FIG. 3 is a diagram illustrating the flow of a heat exchange fluid of a heat exchanger according to an embodiment of the present invention. FIG. 4 is a drawing for explaining a header tank with a three-piece structure of a heat exchanger according to an embodiment of the present invention. FIG. 5 is a drawing showing a first header tank with the inlet and outlet of a heat exchanger removed according to an embodiment of the present invention. FIG. 6 is a perspective view of the first header tank of a heat exchanger according to an embodiment of the present invention. FIG. 7 is an exploded perspective view of the first header tank of a heat exchanger according to an embodiment of the present invention. FIG. 8 is a bottom perspective view of the second header tank of a heat exchanger according to an embodiment of the present invention. FIG. 9 is a bottom exploded perspective view of the second header tank of a heat exchanger according to an embodiment of the present invention. FIGS. 10 and FIGS. 11 are drawings for explaining the assembly process of a second header tank of a heat exchanger according to an embodiment of the present invention. FIG. 12 is a cross-sectional view showing the assembly process of the second header tank of a heat exchanger according to an embodiment of the present invention. FIG. 13 is a drawing showing a baffle assembly hole and a baffle seating portion of a second header tank of a heat exchanger according to an embodiment of the present invention. FIG. 14 is a drawing showing the state in which a baffle is assembled in the second header tank of a heat exchanger according to an embodiment of the present invention. FIG. 15 is a drawing showing the header of the second header tank of a heat exchanger according to an embodiment of the present invention. Embodiments of the present invention are described below with reference to the attached drawings so that those skilled in the art can easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the described embodiments. The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the invention. As used herein, the singular form is intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and/or “comprising” as used herein indicate the presence of the specified features, integers, steps, operations, elements, and/or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, components, and/or groups thereof. As used herein, the term “and/or” includes any one or all combinations of one or more items listed in association. The term “combined” indicates a physical relationship between two components where the components are directly connected to each other or indirectly connected through one or more mediating components. In describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are intended only to distinguish the components from other compone