Patent Application
20140090824
The invention relates to an apparatus for conducting a fluid, such as a cooling fluid for cooling components to be cooled, in particular for cooling electronics components and/or battery cells and/or battery modules.
An apparatus for conducting a cooling fluid for cooling components to be cooled has been disclosed in the prior art, for example, by DE 10 2010 013 025 A1. Here, a pipeline is arranged between two covering plates, which pipeline is shaped in a serpentine-like manner, is received in a groove of the bottom-side covering plate and serves for the throughflow of the cooling fluid.
Apparatuses of this type are complicated to produce.
It is therefore the object of the present invention to provide an apparatus for conducting a fluid, which apparatus has satisfactory heat dissipation of components to be cooled and is nevertheless simple to produce.
The object of the present invention is achieved by an apparatus for conducting a fluid having the features according to Claim 1.
One exemplary embodiment of the invention relates to an apparatus for conducting a fluid, in particular a cooling fluid for cooling components to be cooled, in particular for cooling electronics components and/or battery cells and/or battery modules, having a first covering plate and a second covering plate and having a structural mesh between the two covering plates for defining a spatial region, through which flow can pass, a division being provided by reshaping of the structural mesh and/or by introduction of a sealant for at least partially sealing the spatial region with respect to an outer space and/or for dividing the spatial region into definable flow channels.
In one exemplary embodiment, the heat exchanger according to the invention serves to control the temperature of an energy store.
This has the advantage that the structural mesh can be designed very flexibly. Thus, for example, it can be arranged in one piece between an upper and a lower covering plate. Nevertheless, flow channels can be produced here in a very simple way by the introduction of the sealant and/or by edge sealing. There is therefore the general advantage here that a heat exchanger can be produced by means of only three different components, namely by way of the structural mesh, covering plates and a sealant.
It is advantageous if the structural mesh is a three-dimensional mesh which is formed from wire and/or sheet made from metal, glass fibers, carbon fibers and/or plastic. A wire mesh or a sheet mesh can be readily manufactured here. A mesh of this type can also be reshaped satisfactorily. A plastic mesh would be simple to produce by way of injection molding methods, which would bring about simple production. The provision of glass fibers or carbon fibers would improve the thermal conductivity properties.
It is also expedient if the structural mesh is a stamped and/or punched and/or reshaped wire material or metal sheet. This can be reshaped simply by way of punching or stamping.
It is also expedient if at least one of the covering plates is formed from metal, plastic, plastic composite film and/or from plastic composite panel. In the case of a covering plate made from plastic, an adhesive bonding or fusing process can be advantageous. In the case of a metal sheet, a soldering process can also be provided.
It is expedient here if the structural mesh is connected, such as is adhesively bonded and/or fused and/or soldered, to at least one of the covering plates. Both covering plates are advantageously connected to the structural mesh. Here, however, a covering plate made from metal can also be soldered, whereas the second covering plate made from plastic can also be fused and/or adhesively bonded. A covering plate made from metal or plastic can also be adhesively bonded and/or fused, whereas the second covering plate made from metal or plastic can be adhesively bonded and/or fused. As an alternative, both covering plates can be soldered or adhesively bonded. Both plates made from plastic can also be adhesively bonded and/or fused.
Here, the covering plate made from plastic can be composed as solid plastic or can be formed as a film; it can also be formed as a plastic composite panel with a metal foil, such as aluminum foil, etc., or with a fiber reinforced layer.
It is advantageous if a fluid inlet and a fluid outlet are provided, a fluid outlet being provided on one of the covering plates and a fluid outlet being provided on one of the covering plates, it being possible for the fluid inlet and the fluid outlet to be provided on the same covering plate or on different covering plates.
It is advantageous here if the fluid inlet and/or the fluid outlet are/is configured as a stub which is provided on one of the covering plates. As a result, a favorable connection to a line system can be provided.
It is also expedient if the stub is received in an opening of a covering plate or is molded onto the covering plate.
Furthermore, it is expedient if the sealant is a sealing and/or adhesive compound, is advantageously a hydrolysis-resistant sealing and/or adhesive compound. As a result, injection of the sealant or adhesive as a sealing or adhesive track or a sealing or adhesive bead is possible, with the result that a wall is formed which separates the outer space from the inner space or which can define a fluid channel as wall.
It is advantageous if the sealant can be injected at least into part of the spatial region, it being possible for said part region to be filled completely or partially.
It is advantageous if at least one continuous flow channel or a plurality of flow channels which are separate from one another or are connected to one another are provided for the throughflow of a fluid.
It is also expedient if at least two flow channels which are separate from one another are provided for the separate throughflow of two fluids. As a result, a heat exchanger can also be formed which exchange heat in the apparatus.
Advantageous developments of the present invention are described in the subclaims and the following description of the figures.
In the following text, the invention will be explained in detail using one exemplary embodiment with reference to a drawing, in which:
The spatial region 6, through which flow can pass, is provided with a division 9 for sealing the spatial region 6 off from an outer space 7 and/or for dividing the spatial region into flow channels 8. The division 9 can be provided as a reshaped portion of the structural mesh 5 and/or the provision of a sealant.
In the exemplary embodiment of
Here, the structural mesh 5 has planar regions 10, 11 which are oriented substantially parallel to a plane of the covering plates 3, 4. Webs 12 which connect said planar regions 10, 11 to one another are provided between said planar regions 10, 11.
The apparatus 1 for conducting at least one fluid, also suitable as a heat exchanger for conducting two fluids, advantageously has a structural mesh 5 which is preferably produced from a metallic material, such as from a wire fabric or a structured metal sheet. Said structural mesh 5 advantageously has a high strength, with the result that it withstands tensile forces which acts on the structural mesh on account of internal pressure in the apparatus or external pressure on the apparatus 1.
The covering plates 3, 4 are preferably composed of plastic or metal. They are connected to the structural mesh 5.
The lateral sealing of the unit, comprising covering plate 3, structural mesh 5, covering plate 4, and the design of the fluid conducting means, such as flow dividers, parallel flutes and/or deflection means, are achieved either by targeted introduction of reshaped portions into the structural mesh and/or by targeted introduction of sealant and/or adhesive. The latter can be, for example, a hydrolysis-resistant adhesive or sealant which is introduced into the structural mesh or into a combination of structural mesh and reshaped portion. Here, a fluid-tight chamber is produced, for receiving a cooling or heating medium, for example coolant. It is advantageously provided here that at least one of the covering plates is in thermal contact with at least one of the components to be cooled or to be heated, such as an electric component, for example battery cell.
The covering plates 3, 4 being composed of plastic or of a material composite, for example a plastic/aluminum/plastic composite, or of a plastic which is reinforced with fibers or woven fabrics, for example glass or carbon fibers, for example an organosheet, the material thickness of at least one plate lying in the range from 0.2 to 1 mm, and the plastic having as high a coefficient of heat conductivity as possible, for example by way of suitable filler materials. However, a high dielectric strength is advantageous for safe electric insulation.
The structural mesh and at least one covering plate can be joined via a thermal process, for example by the structural mesh being fused partially into the covering plates or by them being welded to one another.
The structural mesh and at least one of the covering plates can be joined to one another via an adhesive bonding process. The structural mesh 5 is preferably produced from a metallic sheet by punching and reshaping.
Here, the structural mesh is preferably produced as a three-dimensional mesh from a metallic wire.
The spatial region 26, through which flow can pass, is provided with a division 29 for sealing the spatial region 26 off from an outer space 27 and/or for dividing the spatial region into flow channels 28. The division 29 can be provided as a reshaped portion of the structural mesh 25 and/or the provision of a sealant. The structural mesh 25 is formed as a wire structure.
The apparatus has connector stubs which are configured in one piece with a covering plate or are plugged into an opening or are molded onto at least one covering plate or are adhesively bonded as separate components into at least one covering plate.
The apparatus 1, 21 is preferably a battery cooler. The apparatus can also be a heat exchanger for conducting two fluids.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2012 217 874.0 | Sep 2012 | DE | national |
