DE202009006157U1 - Heat exchanger - Google Patents

Abstract

Heat exchanger (1) for passing a fluid to be cooled or heated, in particular coolant evaporator (1) of an automotive air conditioning system with coolant as a fluid to be heated, comprising
At least one collecting tube (2) having at least one channel (3), wherein the at least one channel (3) is provided with an opening (16) for introducing the fluid and / or with an opening (17) for discharging the fluid,
At least one tube (4), in particular flat tube (5), which is connected to the at least one collecting tube (2),
- Preferably between at least two tubes (4) arranged ribs (6), in particular corrugated fins (7), to increase the surface of the heat transfer (1),
characterized in that
the at least one channel (3) is provided with at least two openings (16) for introducing the fluid and / or with at least two openings (17) for discharging the fluid.

Description

The The invention relates to a heat exchanger according to the Preamble of claim 1 and an automotive air conditioning system.

Motor vehicle air conditioners serve to the supplied to the interior of a motor vehicle air to heat and / or cool. The motor vehicle air conditioner has a refrigeration system with a coolant evaporator as a heat exchanger for cooling the through the automobile air conditioner conducted air, a compressor, an expansion device and a capacitor as a heat exchanger. The coolant evaporator is generally made of aluminum manufactured and the components of the coolant evaporator are generally soldered in a soldering oven connected with each other. In this case, the coolant evaporator two manifolds, which are covered by a large number of flat tubes are fluidly connected to each other. Between the flat tubes Corrugated ribs are arranged around the surface for transmission to increase heat.

The DE 10 2005 004 284 A1 shows a heat exchanger or a heat exchanger, in particular a flat-tube evaporator for an automotive air conditioning system with at least one collecting box or a collection tube made of sheet metal, which is divided in the longitudinal direction in at least two chambers or channels and in the bottom of the ends of tubes, in particular of Flat tubes, are introduced and the collection box a tunnel-shaped collection box part, a substantially flat collection box part, which forms the bottom, and frontally each lid, wherein at least one lid is at least in its outer edge region formed flat and positively positioned in the collection box. Disadvantageously, the heat exchanger is structurally complex and therefore expensive to manufacture.

The Object of the present invention is therefore a Heat exchanger and motor vehicle air conditioning for To provide at or at which these disadvantages do not occur. The automotive air conditioning should be inexpensive to manufacture be and work reliably in operation.

These Task is solved with a heat exchanger for passing a to be cooled or heated Fluids, in particular coolant evaporator of a motor vehicle air conditioning system with coolant as the fluid to be heated, comprising at least one collecting tube with at least one channel, wherein the at least one channel with an opening for introducing the Fluids and / or with an opening for discharging the fluid is provided, at least one tube, in particular flat tube, with the at least one manifold, preferably fluid-conducting, connected is, preferably arranged between at least two tubes ribs, in particular corrugated ribs, to increase the Surface of the heat transfer, where the at least one channel with at least two openings for introducing the fluid and / or with at least two openings for Discharging the fluid is provided.

In In another embodiment, at least one channel has an opening on one longitudinal side and an opening on one Connected to the transverse side, so that the at least one channel both a longitudinal connection as well as a side connection for a supply and / or discharge of the fluid is possible.

In a complementary variant is at least one opening closed by a cap.

invention Automotive air conditioning system, wherein the motor vehicle air conditioning at least one Heat exchangers described in this patent application includes.

In A further embodiment comprises the motor vehicle air conditioning system a refrigerant evaporator and / or an air damper and / or a fan and / or a heater for heating the air and / or an air filter and / or a compressor and / or a capacitor as a heat exchanger.

in the The following will be an embodiment of the invention with reference to the accompanying drawings described. It shows:

1 a perspective view of the manifold of the heat exchanger

In 1 is a perspective view of the manifold 2 a heat exchanger 1 shown in an embodiment. Here are on a first channel 3 two openings 16 for introducing the fluid and at a second channel 3 two openings 17 for discharging the fluid present. The openings 16 respectively. 17 are each on a transverse side and on a longitudinal side of the manifold 2 available. The in 1 Right port shown 3 has an opening at its transverse side 16 and on its longitudinal side also an opening 16 on, with the opening 16 on the long side of a cap 18 is closed. The in 1 left channel shown 3 has an opening on its longitudinal side 17 for discharging the fluid and at its transverse side an opening 17 for discharging the fluid, wherein the opening 16 at the transverse side of the cap 18 is closed. In a heat exchanger 1 with this manifold 2 is thus both a side port and a longitudinal port by means of a supply line 19 and a derivative 20 (not shown) possible, because in each case an opening 16 . 17 which is not needed by means of the cap 18 can be closed. This is with an identical manifold 2 by installing different caps only 18 both a side connection and a longitudinal connection with the supply line 19 and the derivative 20 possible. This can advantageously with an identical manifold 2 the heat exchanger 1 be used in a motor vehicle air conditioning system with different connection requirements for a side or a longitudinal connection, although structurally essentially no changes are necessary. Thus, the manufacturing cost can be reduced because with an identical heat exchanger 1 with this manifold 2 these different connection options with the supply line 19 and the derivative 20 possible are.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 102005004284 A1 [0003]

Claims (3)

Heat exchanger ( 1 ) for passing a fluid to be cooled or heated, in particular coolant evaporator ( 1 ) an automotive air conditioning system with coolant as the fluid to be heated, comprising - at least one collecting tube ( 2 ) with at least one channel ( 3 ), wherein the at least one channel ( 3 ) with an opening ( 16 ) for introducing the fluid and / or with an opening ( 17 ) is provided for discharging the fluid, - at least one tube ( 4 ), in particular flat tube ( 5 ), which with the at least one collecting tube ( 2 ), preferably between at least two tubes ( 4 ) arranged ribs ( 6 ), in particular corrugated ribs ( 7 ), to increase the surface of the heat transfer ( 1 ), characterized in that the at least one channel ( 3 ) with at least two openings ( 16 ) for introducing the fluid and / or with at least two openings ( 17 ) is provided for discharging the fluid. Heat exchanger according to claim 1, characterized in that at least one opening ( 16 . 17 ) of a cap ( 18 ) is closed. Motor vehicle air conditioning system, characterized in that the motor vehicle air conditioning at least one heat exchanger ( 1 ) according to one or more of the preceding claims.