Heat exchanger, in particular a charge intercooler or coolant cooler for motor vehicles

A technology of heat exchangers, stiffeners, applied in the field of charge air cooler or coolant radiator

Inactive Publication Date: 2009-11-11
BEHR GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In particular, as described in DE-A 198 57 435, in charge air coolers, the pressure inside the plastic box becomes higher, and with future developments, the pressure tends to become higher, so that conventional plastic The box will not be able to withstand this pressure

Method used

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  • Heat exchanger, in particular a charge intercooler or coolant cooler for motor vehicles
  • Heat exchanger, in particular a charge intercooler or coolant cooler for motor vehicles
  • Heat exchanger, in particular a charge intercooler or coolant cooler for motor vehicles

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Embodiment Construction

[0021] FIG. 1 shows a heat exchanger 1 according to the invention with a tube plate 2 , a plastic box 3 and flat tubes 4 which are fastened in openings 2 a of the tube plate 2 . As is known from the prior art, the tube base 2 has on the outside a circumferential groove 2b, to which an outer edge region 2c adjoins. The plastic box 3 has a U-shaped profile, not fully shown, which comprises a wall 3a which transitions into a thicker-walled flange 3b. Flange 3b with a seal (not shown) is inserted into groove 2b of tube base 2 and clamped to tube base 2 via deformable edge region 2c in a crimping or clamping connection (not shown in detail). Such a tank / tube-sheet connection is known from the aforementioned prior art, for example DE-A 38 41 470 . The flat tube 4 is brazed with corrugated fins not shown in the figure and the opening on the tube plate (only part of the tube plate 2 can be seen in the tube plate) to form a core body. The plastic box (in which again only a section of...

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PUM

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Abstract

The invention relates to a heat exchanger ( 1 ), in particular a charge intercooler or coolant cooler for motor vehicles, which comprises a soldered block which is made of pipes ( 4 ), ribs and at least one pipe base ( 2 ), in addition to at least one plastic box ( 3 ) which has a wall ( 3 a) which extends in the cross-section and which is approximately U shaped and a surrounding flange ( 3 b). The box is mechanically connected to the pipe base over flange ( 3 b). According to the disclosure, reinforcing ribs are arranged on the inner side of the plastic box ( 3 ) in a transition area between the flange ( 3 b) and the wall ( 3 a).

Description

technical field [0001] The invention relates to a charge air cooler or coolant radiator for motor vehicles. Background technique [0002] Known heat exchangers, in particular for motor vehicles, often have a brazed core consisting of tubes, fins and tube sheets, on which the plastic collecting tanks are placed. The connection between the plastic box and the tube sheet is a clamping connection or a crimping connection. Here, a seal is placed between the flange of the plastic box and the tube sheet, and it is clamped through the connection of the box / tube sheet. In this way, the plastic box is firmly and hermetically connected to the metal tube sheet. [0003] Such a tank / tube sheet connection is known from DE-B 28 52 408, in which the deformable edge region of the tube sheet is clamped on the flange of the tank so that a form-fitting connection is formed. In case of internal pressure rise, the plastic box is prone to deformation and stresses, especially above the pinched ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F9/02F28D1/053
CPCF28D2021/0094F28F2225/08F28D2021/0082F28D1/05366F28F21/067F28F9/0226
Inventor 霍尔格·勒韦弗兰克·冯吕茨奥约尔格·威廉
Owner BEHR GMBH & CO KG
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