Heat exchanger, in particular water-air-heat exchanger or oil-water-heat exchanger

Abstract

The invention relates to a heat exchanger, in particular an water-air heat exchanger or oil-water heat exchanger, comprising at least one first fluid channel for guiding a first fluid, and at least one second fluid channel for guiding a second fluid, the at least one first fluid channel being joined to a fluid receiving volume, in particular on the outlet side, said fluid receiving volume being equipped with an electric heating coating (13).

Claims

1. A heat exchanger comprising at least one first fluid channel for conducting a first fluid, and at least one second fluid channel for conducting a second fluid, wherein the at least one first fluid channel is connected to a fluid-receiving volume at an outlet side, wherein the fluid-receiving volume is equipped with an electric heating coating, wherein the fluid-receiving volume is provided by a separate module, wherein the separate module is fastenable or fastened to the other constituent parts of the heat exchanger, and wherein the fluid receiving volume is defined by an outlet pipe.

2. The heat exchanger according to claim 1, wherein a turbulator is provided in the vicinity of an electric heating coating.

3. The heat exchanger according to claim 1, wherein the fluid-receiving volume is an integral constituent part of the heat exchanger.

4. The heat exchanger according to claim 1, wherein the electric heating coating is designed for operation in a low-voltage range, the low voltage range being one of 12 volts, 24 volts or 48 volts.

5. A method for producing a heat exchanger, comprising the steps: providing at least one first fluid channel for conducting a first fluid, and a second fluid channel for conducting a second fluid, wherein the at least one first fluid channel is connected to a fluid-receiving volume at an outlet side, wherein the fluid-receiving volume is equipped with an electric heating coating, wherein the fluid-receiving volume is provided by a separate module, wherein the separate module is fastenable or fastened to the other constituent parts of the heat exchanger, and wherein the fluid-receiving volume is defined by an outlet pipe.

6. The heat exchanger, according to claim 1, wherein the heat exchanger is a water-air heat exchanger or as an oil-water heat exchanger for the internal combustion engine of a motor vehicle.

7. The heat exchanger according to claim 1, wherein the heat exchanger is at least one of a water-air heat exchanger or an oil-water heat exchanger.

8. The method according to claim 5, wherein the heat exchanger is at least one of a water-air heat exchanger or an oil-water heat exchanger.

Description

(1) The invention will be described below on the basis of exemplary embodiments, which will be discussed in more detail on the basis of the figures. In the figures:

(2) FIG. 1 shows a schematic side view of an oil-water heat exchanger as per a first embodiment of the invention;

(3) FIG. 2 shows an oil-water heat exchanger as per an alternative embodiment of the invention; and

(4) FIG. 3 shows a water-air heat exchanger as per an alternative embodiment of the invention.

(5) In the following description, the same reference signs will be used for identical parts and parts of identical action.

(6) FIG. 1 shows, in a schematic view, an oil-water heat exchanger (as described for example in detail in EP 2 466 241 A1) with multiple (soldered) trough elements 10, a cover 19, an inlet pipe 11 and an outlet pipe 12 for the oil flowing in the heat exchanger. An electric heating coating 13 is applied at least to the outlet pipe 12 (possibly in the inlet pipe 11).

(7) In the alternative embodiment as per FIG. 2, an electric heating coating 13 is arranged on a fluid-receiving vessel 14. The fluid-receiving vessel 14 has a (considerably) enlarged diameter in relation to the outlet pipe 12 as per FIG. 1 or a fluid-receiving vessel outlet pipe 15, such that the fluid (oil) can be stored in the fluid-receiving vessel 14. The fluid-receiving vessel 14 may for example be a cuboidal or cylindrical body. In the specific embodiment as per FIG. 2, the fluid-receiving vessel 14 is provided as an auxiliary module which is connected to an outlet 20 of a heat exchanger main body 21. It would also be conceivable for the fluid-receiving vessel 14 to be formed as an integral constituent part of the oil-water heat exchanger, such that the outlet 20 can be omitted.

(8) FIG. 3 shows a water-air heat exchanger which has a collecting box 16 and heat exchanger pipes 17, wherein, both through the collecting vessel 16 and the heat exchanger pipes 17, water is provided for warming (or cooling) a gas (in particular air), which flows past the heat exchanger pipes 17. An electric heating coating 13 is situated on the collecting box 16. Multiple heat exchanger pipes 17 are connected by means of connection pieces 18 to the collecting box 16. It is possible for 3, or at least 5, or at least 20 heat exchanger pipes 17 to be connected to the same collecting box 16. The water can enter via an inlet (inlet pipe 11) and exit via an outlet (outlet pipe 12).

(9) It is pointed out at this juncture that all of the above-described parts both individually and in any combination, in particular the details illustrated in the drawings, may be claimed as being essential to the invention. Modifications in relation to this are familiar to a person skilled in the art.

REFERENCE SIGNS

(10) 10 Trough element 11 Inlet pipe 12 Outlet pipe 13 Electric heating coating 14 Fluid-receiving vessel 15 Fluid-receiving vessel outlet pipe 16 Collecting box 17 Heat exchanger pipe 18 Connection device 19 Cover 20 Outlet 21 Heat exchanger main body