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Heat exchanger, in particular a flat pipe evaporator for a motor vehicle air conditioning system

A technology of heat exchangers and flat tubes, applied in the field of flat tube evaporators, can solve problems affecting the water storage and discharge performance of evaporators, and achieve the effects of reducing the risk of sudden fogging, increasing power potential, and reducing costs

Inactive Publication Date: 2009-12-02
BEHR GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] For example, due to the existing fin shape, the fins in the evaporator are almost parallel or the opening angle between the fin segments is small, which affects the water storage and discharge performance of the evaporator

Method used

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  • Heat exchanger, in particular a flat pipe evaporator for a motor vehicle air conditioning system
  • Heat exchanger, in particular a flat pipe evaporator for a motor vehicle air conditioning system
  • Heat exchanger, in particular a flat pipe evaporator for a motor vehicle air conditioning system

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Embodiment Construction

[0045] As previously described in DE198 26 881 A1, the flat tube evaporator 1 of automobile air conditioning equipment (only a part in the figure) includes two collecting boxes 2 and flat tubes (not shown) between the two collecting boxes 2 and corrugated fins 3 arranged between the flat tubes. According to this embodiment, each collecting tank 2 is formed by a slab stamped from sheet material, and the slab forms a flat collecting tank part 4 and two tunnel-shaped Collecting box part 5 (see Figure 4 and 6 ). Its longitudinal edge is provided with a plurality of tabs distributed over its length, which are inserted into openings in the flat collecting tank part 4 and caulked on the outside facing the flat tube. The ends are closed by caps 6 which will be described in detail later.

[0046] A plurality of flange holes 7 are formed in the flat collecting tank part 4 , into which the flat tubes are inserted, wherein the shape of the openings of the flange holes 7 substantially...

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Abstract

The invention relates to a heat exchanger, in particular a flat tube evaporator (1) for a vehicle air-conditioning unit, having at least one collecting tank (2) made of plate material, which is divided longitudinally into at least two chambers , while the tubes, especially the ends of the flat tubes, are inserted into the bottom of the collecting tank. Said collecting tank (2) has a tunnel-shaped collecting tank part (5), a substantially flat collecting tank part (4) forming the bottom of the collecting tank, and caps ( 6). At least one cover (6) is flat in the region of its outer edge and is positively positioned in the collecting tank.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a flat tube evaporator used in an automobile air conditioner. Background technique [0002] DE 198 26 881 A1 discloses a heat exchanger, in particular an evaporator, in which a collecting tank made of sheet metal is provided, which is formed from a prefabricated blank. [0003] The plate blank consists of an aluminum alloy which also forms the flat tubes, corrugated fins and side parts and other elements of the heat exchanger. The slab is first stamped from a single plate and then shaped to form a flat base (essentially flat header tank part) and a curved part (tunnel-shaped header tank part) parallel to its longitudinal sides catch. The curved member is curved according to a radius into a cylindrical surface, and the longitudinal edges of the cylindrical surface are bent so that the edges are parallel to each other and close together, and substantially perpendicular to the base. The longit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F9/02F28D1/053F28F1/12F28F9/04
CPCF28F2265/32F28F2220/00F28D1/05366F28F9/0246F28F9/0204F28D2021/0085F28F1/126
Inventor 戈特弗里德·迪尔克劳斯·弗尔斯特米夏埃尔·科尔埃米尔·诺伊曼弗朗茨·奥托沃尔夫冈·泽瓦尔德
Owner BEHR GMBH & CO KG
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