DE102020205385A1 - Plate-like fluid container - Google Patents

Abstract

The present invention relates to a plate-like fluid container for guiding a fluid, in particular for controlling the temperature of a storage device for electrical energy or for controlling the temperature of an electronic control or regulating device, preferably in a motor vehicle, as well as a battery temperature control arrangement which comprises such a plate-like fluid container. The plate-like fluid container according to the invention can be used, for example, for cooling and / or heating batteries or power electronics in an electric vehicle. According to the invention it is provided that the plate-like fluid container is composed of different elements that are connected to one another. The composite or the connection of at least one adjacent pair of elements consisting of different materials is characterized by an extremely high peel strength.

Description

The present invention relates to a plate-like fluid container for guiding a fluid, in particular for controlling the temperature of a storage device for electrical energy or for controlling the temperature of an electronic control or regulating device, preferably in a motor vehicle, as well as a battery temperature control arrangement which comprises such a plate-like fluid container. The plate-like fluid container according to the invention can be used, for example, for cooling and / or heating batteries or power electronics in an electric vehicle. According to the invention it is provided that the plate-like fluid container is composed of different elements that are connected to one another. The composite or the connection of at least one adjacent pair of elements consisting of different materials is characterized by an extremely high peel strength.

In the prior art, temperature control plates are known which are arranged on a base plate, in a frame or in a tub for batteries or battery packs and cool and / or heat the batteries or battery packs flat, for example from below and / or laterally depending on the operating state . The known temperature control plates have a plate close to the battery and a plate remote from the battery, with channel structures embossed in at least one of these plates for conducting a cooling liquid.

In the prior art, the at least two plates, i.e. the plate close to the battery and the plate remote from the battery, usually made of the same material. In particular, both plates are often made of aluminum and are usually connected to one another by means of soldering processes.

In addition, such temperature control plates are known from the prior art in which an aluminum plate is combined with a thermoplastic plate. Here, the thermoplastic material is used in particular to form the plate containing the channel-like depressions, since more degrees of freedom are available in the shaping by means of injection molding than with the usual forming processes for aluminum sheets. These temperature control plates known from the prior art are constructed here, for example, by joining these two plates, whereby the respective elements of the temperature control plates, for example the plates, but also connection elements, distributors, flow guide elements, etc. are made of different materials - for example thermoplastics on the one hand, and thermoplastics on the other Metals - are manufactured. The individual components of these temperature control plates are joined by joining methods known from the prior art, such as gluing or mechanical joining methods. Beading the edge of the aluminum plate around the edge of the plastic plate requires at least one additional sealing element inserted between the two plates, so that the manufacturing costs and the manufacturing effort are very high, sometimes not competitive.

Adhesive connections are not permanently stable due to the pressures and temperatures prevailing in a temperature control plate, in particular there is a high risk that the internal pressure of the temperature control plate will destroy the adhesive connection in the form of peeling of the thermoplastic plate from the aluminum plate. In addition, the joining processes mentioned are extremely complex to carry out, particularly with regard to the accuracy requirements.

The object of the present invention is therefore to provide a fluid temperature control plate, for example a battery temperature control plate, which does not have the aforementioned disadvantages. The bond between the individual elements of such a fluid temperature control plate system should be designed to be mechanically extremely stressable and should also have a reliable tightness over a long service life. The fluid temperature control plates should be able to be produced in a simple manner and, moreover, can be installed with little effort.

This object is achieved with regard to a plate-like fluid container with the features of claims 1 and 3 and with regard to a battery temperature control arrangement with the features of claim 24. The respective dependent claims for protection represent advantageous developments.

• mindestens zwei miteinander verbundene Platten, wobei in mindestens eine Platte mindestens eine kanalartige Vertiefung zum Führen des Fluids eingeformt ist, und diese mindestens eine Platte außerhalb der kanalartigen Vertiefungen mit der jeweiligen anderen Platte in Verbindungsbereichen derart verbunden ist, dass die mindestens eine kanalartige Vertiefung der mindestens einen Platte zusammen mit der jeweiligen anderen Platte jeweils mindestens einen Fluidkanal bildet und
• mindestens ein Anschlusselement und/oder mindestens ein Verteilerkanalbauteil, das bzw. die mit mindestens einer der mindestens zwei Platten verbunden ist bzw. sind.

According to a first embodiment, the present invention relates to a plate-like fluid container for guiding a fluid, comprising the following elements:

• at least two interconnected plates, wherein at least one channel-like recess for guiding the fluid is formed in at least one plate, and this at least one plate outside the channel-like recesses is connected to the other plate in connection areas in such a way that the at least one channel-like recess of the at least each plate forms at least one fluid channel together with the respective other plate and
• at least one connection element and / or at least one distribution channel component, which is or are connected to at least one of the at least two plates.

At least one pair of the interconnected elements, i.e. plates with one another, connection element with at least one of the plates and / or manifold component with one of the plates, is structurally adhesively connected to one another and one of the elements of the pair is made of a metal or a metal alloy and the other of the elements of the The pair is formed from a thermoplastic molding compound.

The structurally adhesive connection of the elements of the pair of interconnected elements is of such a quality according to the invention that a test of the assembly by means of peeling tension does not lead to a failure of the assembly. This means that with a peel tension above a load limit, failure of the thermoplastic molding compound occurs in the vicinity of the material boundary between structurally adhesively bonded metal or metal alloy on the one hand and thermoplastic molding compound on the other.

This is particularly intended for test conditions, i.e. at room temperature (20 ° C) apply. But even at extreme operating temperatures, such as when a traction battery is put into operation after a long period of standstill at high outside temperatures (40 ° C), this behavior occurs with a peeling pull.

A “structurally adhesive connection” is to be understood here as a connection in which the surface of a connected element has a structuring on the surface to be used for connection or in the associated interface layer prior to the connection, with surface material of the other connected during the production of the connection Element penetrates into this structured surface and there is permanently connected to this structured surface layer. For this purpose, the penetrating surface material is preferably softened before the connection is established and solidifies after penetration. So it is a mechanical, not a chemical compound.

In relation to a channel-like depression in a metal plate, the term “depression” means a deflection relative to the undeformed plate, so it also includes raised areas. With regard to a plate made from a thermoplastic molding compound, the term “molded-in channel-like depression” is used here with reference to a metal plate, even if the channel-like depression is originally formed, for example by means of injection molding. In relation to a channel-like depression in a plate made of a thermoplastic molding compound, the term “depression” is to be understood as a depression opposite the surface given on the observer's side.

A preferred variant provides that the plate-like fluid container has at least two plates, one of which is designed as a base plate and at least one plate arranged directly on one side of the base plate is designed as a channel plate, with at least one channel-like recess for guiding into the at least one channel plate of the fluid is formed, and the at least one channel plate outside the channel-like depressions is connected to the base plate in connection areas such that the at least one channel-like depression of the at least one channel plate together with the base plate each form at least one fluid channel, and
at least one connection element and / or at least one distribution channel component is present which is / are connected to the side of the base plate facing away from the channel plate and / or to the side of the channel plate facing away from the base plate,
wherein at least one pair of the interconnected elements is structurally adhesively connected to one another and one of the elements of this pair of interconnected elements is formed from a metal or a metal alloy and the other of the elements of the pair is formed from a thermoplastic molding compound.

According to an alternative embodiment, the present invention relates to a plate-like fluid container for guiding a fluid, comprising at least two interconnected plates, wherein at least one channel-like recess for guiding the fluid is formed in at least one plate, and this at least one plate outside the channel-like recesses with the respective other plate is connected in connection areas in such a way that the at least one channel-like recess of the at least one plate together with the respective other plate forms at least one fluid channel, as well as at least one connection element formed in one piece with one of the plates.

In this case, at least one plate is made of metal or a metal alloy and the at least one other plate is made of a thermoplastic molding compound and the plates are structurally adhesively connected to one another. As in the first embodiment, with a peel tension above a load limit, failure of the thermoplastic molding compound occurs in the vicinity of the material boundary between fluid-tightly connected metal or metal alloy on the one hand and thermoplastic molding compound on the other.
A preferred variant of the second embodiment includes
a plate designed as a base plate,
at least one plate designed as a channel plate arranged directly on one side of the base plate, at least one channel-like recess for guiding the fluid being formed in each of the at least one channel plate, and the at least one channel plate outside the channel-like recesses being connected to the base plate in connection areas in such a way, that the at least one channel-like recess of the at least one channel plate together with the base plate each forms at least one fluid channel,
as well as at least one connection element formed in one piece with the base plate and / or the at least one channel plate,
wherein the at least one channel plate is structurally adhesively connected to the base plate and one of the elements selected from the group consisting of the at least one channel plate and base plate is formed from a metal or a metal alloy and the respective other of the elements is formed from a thermoplastic molding compound.

As in the first embodiment, the connection of at least one channel plate to the base plate according to the invention has such a quality that a test of the connection by means of peeling tension does not lead to a failure of the connection. This means that with a peel tension above a load limit, failure of the thermoplastic molding compound occurs in the vicinity of the material boundary between structurally adhesively bonded metal or metal alloy on the one hand and thermoplastic molding compound on the other. As mentioned above, this applies in particular at room temperature.

According to each of the aforementioned embodiments, the present invention thus provides a plate-like fluid container which is formed from at least one pair of different materials (metal or metal alloy and thermoplastic molding compound) by a joining process. The connection according to the invention has such a high peel strength that in an attempt to mechanically peel the two joined and connected elements of the respective pair of elements from one another by means of the action of force, the connection does not fail. If a force is applied beyond a load limit of the respective materials, a material failure results, e.g. in the form of a break or crack in the thermoplastic, but not at the point of connection of the materials. The connection thus has a higher tear strength compared to the tear strength of the thermoplastic material. When the connection is tested by means of a peel tension, the thermoplastic molding compound fails above a load limit in the vicinity of the material boundary between structurally adhesively bonded metal or metal alloy on the one hand and thermoplastic molding compound on the other.

The connection can in particular be established in that the metallic element of the pair is roughened in sections or over the entire surface, in particular by means of a chemical and / or mechanical, at least in the connection areas in which the structurally adhesive connection with the element of the pair formed from the thermoplastic molding compound takes place Roughening process, in particular by chemical etching, crystallographic etching and / or in the case of a metal alloy by alloying.

To establish the connection, the metal surface is structured in a first step, during which it is roughened. This is followed by the connection with the thermoplastic component, the thermoplastic material in the plasticized state (for example by heating to temperatures above the glass transition temperature or melting temperature) at least partially penetrating the cavities or depressions and / or undercuts in the metal surface created during roughening and afterwards Cooling enables a permanent and mechanical bond between metal and thermoplastic. The mechanical stability of this type of connection goes far beyond a purely adhesive as well as a purely form-fitting connection. In particular, there is no adhesive that can be easily peeled off in the area of the connection.

Particularly preferred is the surface roughened in the lower micrometer range or even in the nanometer range, which has depressions and / or cavities that are at least partially covered by the thermoplastic molding compound of the base plate or channel plate formed from a thermoplastic molding compound and / or of the at least one Connection element and / or the distribution channel component are filled. The connection is referred to here as a structural adhesive connection. The depth of the layer in which the thermoplastic molding compound protrudes into the roughened surface of the metal surface is 5 to 50 μm, preferably 8 to 25 μm.

According to the embodiments presented above, the channel plate can be arranged on one side of the base plate, while at least one connection element is arranged on the other side of the base plate. However, it is also possible that the connection element is connected to the duct plate. Furthermore, temperature control elements are also possible in which at least one connection element is connected to the base plate in sections and is connected to the channel plate in other sections, the connection element is preferably arranged between the base plate and the channel plate.

A preferred embodiment provides that at least one fluid channel inlet and / or at least one fluid channel outlet for the at least one fluid channel is arranged in the base plate or in the at least one channel plate. Here, at least one connection element enclosing the at least one fluid channel inlet and / or the at least one fluid channel outlet is arranged at the at least one fluid channel inlet and / or the at least one fluid channel outlet on the side of the base plate facing away from the channel plate and / or on the side of the channel plate facing away from the base plate in each case the at least one connection element is structurally adhesively connected to the base plate and / or the channel plate in a connection area and / or is formed in one piece with the base plate and / or the channel plate.

1. a) das mindestens eine Anschlusselement aus einem thermoplastischen Kunststoff und die Grundplatte sowie die mindestens eine Kanalplatte aus einem Metall oder einer Metalllegierung,
2. b) das mindestens eine Anschlusselement und die Grundplatte aus einem Metall oder einer Metalllegierung sowie die mindestens eine Kanalplatte aus einer thermoplastischen Formmasse,
3. c) das mindestens eine Anschlusselement und die mindestens eine Kanalplatte aus einer thermoplastischen Formmasse sowie die Grundplatte aus einem Metall oder einer Metalllegierung,
4. d) das mindestens eine Anschlusselement und die mindestens eine Kanalplatte aus einem Metall oder einer Metalllegierung sowie die Grundplatte aus einer thermoplastischen Formmasse,
5. e) das mindestens eine Anschlusselement und die Kanalplatte einstückig und aus einer thermoplastischen Formmasse sowie die mindestens eine Grundplatte aus einem Metall oder einer Metalllegierung,
6. f) das mindestens eine Anschlusselement und die Grundplatte einstückig und aus einer thermoplastischen Formmasse sowie die mindestens eine Kanalplatte aus einem Metall oder einer Metalllegierung,
7. g) das mindestens eine Anschlusselement aus einem Metall oder einer Metalllegierung und die Grundplatte und die mindestens eine Kanalplatte aus einer thermoplastischen Formmasse, oder
8. h) das mindestens eine Anschlusselement und die Grundplatte aus einer thermoplastischen Formmasse und die mindestens eine Kanalplatte aus einem Metall oder einer Metalllegierung,

gebildet. According to exemplary embodiments are

1. a) the at least one connection element made of a thermoplastic material and the base plate as well as the at least one channel plate made of a metal or a metal alloy,
2. b) the at least one connection element and the base plate made of a metal or a metal alloy and the at least one channel plate made of a thermoplastic molding compound,
3. c) the at least one connection element and the at least one channel plate made of a thermoplastic molding compound and the base plate made of a metal or a metal alloy,
4. d) the at least one connection element and the at least one channel plate made of a metal or a metal alloy and the base plate made of a thermoplastic molding compound,
5. e) the at least one connection element and the channel plate in one piece and made of a thermoplastic molding compound and the at least one base plate made of a metal or a metal alloy,
6. f) the at least one connection element and the base plate in one piece and made of a thermoplastic molding compound and the at least one channel plate made of a metal or a metal alloy,
7. g) the at least one connection element made of a metal or a metal alloy and the base plate and the at least one channel plate made of a thermoplastic molding compound, or
8. h) the at least one connection element and the base plate made of a thermoplastic molding compound and the at least one channel plate made of a metal or a metal alloy,

educated.

A particularly preferred variant of the first embodiment provides that at least one fluid channel inlet and / or at least one fluid channel outlet for the at least one fluid channel is arranged in the base plate or the at least one channel plate and
on the side of the base plate facing away from the channel plate and / or on the side of the channel plate facing away from the base plate, at least one distribution channel component, which surrounds the at least one fluid channel inlet and / or the at least one fluid channel outlet, is predominantly material and has a supply channel for supplying a fluid to the at least one fluid channel inlet and / or a discharge channel for discharging a fluid from the at least one fluid channel outlet is arranged. At least one fluid channel inlet is hydraulically connected to the feed channel of the distribution channel component and / or at least one fluid channel outlet is hydraulically connected to the discharge channel of the distribution channel component. Furthermore, the distribution channel component outside the supply channel and / or the discharge channel is structurally adhesively connected to the base plate and / or the channel plate in a connection area. Here, at least one of the elements is or are selected from the base plate, the at least one channel plate and the at least one distribution channel component made from a thermoplastic molding compound and at least one element not made from a thermoplastic molding compound made from a metal or a metal alloy.

1. a) das mindestens eine Verteilerkanalbauteil aus einem thermoplastischen Kunststoff und die Grundplatte sowie die mindestens eine Kanalplatte aus einem Metall oder einer Metalllegierung,
2. b) das Verteilerkanalbauteil und die Grundplatte aus einem Metall oder einer Metalllegierung sowie die mindestens eine Kanalplatte aus einem thermoplastischen Kunststoff,
3. c) das Verteilerkanalbauteil und die mindestens eine Kanalplatte aus einem thermoplastischen Kunststoff sowie die Grundplatte aus einem Metall oder einer Metalllegierung,
4. d) das Verteilerkanalbauteil und die mindestens eine Kanalplatte aus einem Metall oder einer Metalllegierung sowie die Grundplatte aus einem thermoplastischen Kunststoff,
5. e) das Verteilerkanalbauteil aus einem Metall oder einer Metalllegierung und die mindestens eine Kanalplatte sowie die Grundplatte aus einem thermoplastischen Kunststoff, oder
6. f) das Verteilerkanalbauteil sowie die Grundplatte aus einem thermoplastischen Kunststoff und die mindestens eine Kanalplatte aus einem Metall oder einer Metalllegierung

gebildet sind.Exemplary embodiments thereof also provide that

1. a) the at least one distribution channel component made of a thermoplastic material and the base plate and the at least one channel plate made of a metal or a metal alloy,
2. b) the distribution channel component and the base plate made of a metal or a metal alloy and the at least one channel plate made of a thermoplastic material,
3. c) the distribution channel component and the at least one channel plate made of a thermoplastic material and the base plate made of a metal or a metal alloy,
4. d) the distribution channel component and the at least one channel plate made of a metal or a Metal alloy and the base plate made of a thermoplastic material,
5. e) the distribution channel component made of a metal or a metal alloy and the at least one channel plate and the base plate made of a thermoplastic material, or
6. f) the distribution channel component and the base plate made of a thermoplastic material and the at least one channel plate made of a metal or a metal alloy

are formed.

According to this variant of the first embodiment, at least one distribution channel component is arranged on the side of the base plate facing away from the channel plate or on the side of the channel plate facing away from the base plate, by means of which the flow channels formed between the channel plate and the base plate can be centrally supplied, for example. It is provided here that the fluid channels of the channel plate are connected to a common distribution channel component via which the fluid can be fed directly to the individual fluid channels and / or can be drawn off directly from the individual fluid channels, the distribution channel component having an at least regionally flat side wall and being arranged in such a way that that the side wall runs parallel to the base plate and / or the channel plate at least in its flat areas and overlaps with the base plate and the channel plate.

“Directly feedable” and “directly derivable” are to be understood here in particular as a parallel connection of the fluid channels via the distribution channel component. That is, the distribution channel component distributes the fluid individually from a common feed channel to each fluid container segment and / or discharges the fluid individually from each fluid container segment via a common discharge channel. However, it is also possible to use a distribution channel component for the supply line and a distribution channel component separate therefrom for discharging temperature control fluid.

The term “flat side wall” should be understood here to mean all walls and wall pieces delimiting a fluid channel of the distribution channel component, that is to say also a base or an upper part of the distribution channel component, etc. The term “at least“ partially flat side wall ”also includes walls which in several planes comprise essentially parallel offset areas, which are flat areas between which inclined or curved wall sections run for offset purposes. The term “partially flat side wall” can also be understood to mean a side wall which has one or more, non-contiguous flat areas.

Preferably the fluid channel inlet and the fluid channel outlet are immediate, i. connected without a separate connecting element to the supply channel and the discharge channel. This is possible in particular if the distribution channel component is arranged directly with the side wall on the base plate or on the channel plate and is structurally adhesively connected to it. A distribution channel outlet is assigned to each fluid channel inlet and a distribution channel inlet is assigned to each fluid channel outlet, the fluid channel inlet being aligned with the distribution channel outlet and the fluid channel outlet at least partially aligned with the distribution channel inlet. Preferably, each fluid channel inlet is assigned exactly one distribution channel outlet and / or each fluid channel outlet is assigned exactly one distribution channel inlet. Furthermore, several fluid channel inlets and / or several fluid channel outlets can be assigned to each distribution channel outlet. The fluid line is therefore advantageously carried out via openings in the distribution channel component and in the base plate or in the channel plate. If the distribution channel component and the base plate or channel plate are connected to one another with structural adhesive around the openings, no separate seal is required. If the connection around the openings is not structurally adhesive or not structurally adhesive around the circumference, an additional sealing element is required around the relevant opening (s), for example an O-ring. The structural adhesive connection thus makes it possible to save on additional sealing elements.

In the present description, the term “distributor channel inlet” and the term “distributor channel outlet” are understood to mean the distributor channel inlets and outlets connected to the fluid channels. The elements connected to the fluid supply and discharge line are referred to as distribution channel supply and discharge lines. The distribution channel inlets and outlets as well as the distribution channel inlet and outlet lines are preferably components of the distribution channel component.

The distribution channel component can also be made up of several layers. It is preferred that at least one fluid channel inlet and / or at least one fluid channel outlet for the at least one fluid channel is arranged in the base plate or the at least one channel plate,
on the side of the base plate facing away from the channel plate and / or on the side of the channel plate facing away from the base plate, a distribution channel component enclosing the at least one fluid channel inlet and / or at least one fluid channel outlet, which has a supply channel for supplying a fluid to the at least one fluid channel inlet and / or a discharge channel Having discharge of a fluid from the at least one fluid channel outlet, is arranged, wherein at least one The fluid channel inlet is connected to the feed channel of the distribution channel component and / or at least one fluid channel outlet is connected to the discharge channel of the distribution channel component,
wherein the distribution channel component comprises at least two layers, namely a first distribution layer and a second distribution layer,
wherein the distribution channel component is structurally adhesively connected outside of the supply channel and / or the discharge channel to the base plate or the at least one channel plate in a connection area, wherein
at least one of the elements selected from the base plate, the at least one channel plate, the first distribution layer and the second distribution layer made of a thermoplastic molding compound and at least one other of the elements selected from the base plate, the at least one channel plate, the first distribution layer and the second distribution layer made of a Metal or a metal alloy is formed or are.

It is particularly advantageous here if one of the first and second distributor layers is made from a metal or a metal alloy and the other of the first and second distributor layers is made from a thermoplastic material.

The plate-like fluid container preferably comprises a base plate and several channel plates arranged thereon, the distribution channel component taking over the supply and / or disposal for several or all channel plates. This segmented structure of the plate-like fluid container makes it possible in principle to produce a fluid container of unlimited size by arranging any number of channel plates on a base plate. The size limitation is only due to the maximum size of the base plate. At the same time, the structural rigidity of the plate-like fluid container is reduced only insignificantly, despite the segmented design, due to the continuous base plate.

For example, the plate-like fluid container can comprise further elements, in particular turbulizers and / or guide elements, wherein these further elements can be structurally adhesively connected to the base plate and / or the channel plate, at least one pair of structurally adhesively interconnected elements made of a metal or a metal alloy on the one hand and are formed from a thermoplastic molding compound on the other hand. As a result, temperature control fluid can be directed specifically in the channel-like depressions to the areas that require a higher temperature exchange rate, and temperature control fluid can also be passed particularly quickly through areas for whose temperature control a lower temperature exchange rate is sufficient.

The channel-like depressions are preferably formed predominantly or exclusively in the at least one channel plate, which means that deformation steps in the base plate can be saved.

According to a further advantageous embodiment it is provided that for a pair of structurally adhesively interconnected elements, in which one element is formed from a metal or a metal alloy and the other element is formed from a thermoplastic molding compound, the one formed from a metal or a metal alloy Element, at least in the connection areas in which the structurally adhesive connection with the element formed from a thermoplastic molding compound takes place, is partially or fully roughened, in particular by means of a chemical and / or mechanical roughening process, in particular by chemical etching, crystallographic etching and / or in the case a metal alloy by alloying.

For example, the metallic interface of the structurally adhesive connection can be roughened and have depressions and / or cavities which are at least partially filled by the thermoplastic molding compound.

The metal is preferably selected from the group consisting of aluminum, stainless steel and copper. The metal alloy is preferably selected from the group consisting of alloys of copper or aluminum, in particular aluminum of the series 3xxx (aluminum-manganese alloys), 5xxx (aluminum-magnesium alloys) and 7xxx (aluminum-zinc alloys). In particular, the metal can be designed as sheet metal.

In particular, it is advantageous if the thermoplastic molding compound has at least one thermoplastic polymer selected from the group consisting of polyamides, in particular aliphatic and / or partially aromatic polyamides, such as e.g. PA6, PA66, PA12, PA1212, PA6I, PA 6T, PA6I / 6T, made of polyimides, polyamide-imides, polyphthalamides, polyaryl ether sulfones, polyether sulfones, polypropylene carbonates, polyaryl ether ketones, polyphenylene sulfides, polyether ether ketones, polycarbonates, or blends of polypropylene homylene ethers, polycarbonates or blends of polypropylene homylene ethers, polycarbonates, polypropylene homylene ethers, or blends of polypropylene homylene ethers, polycarbonates, polypropylene homylene ethers, or blends of polypropylene homylene ethers, polycarbonates or blends of polypropylene homylene ethers contains or consists of at least two of the aforementioned thermoplastic polymers.

In addition, the thermoplastic molding compound can additionally contain at least one filler and / or reinforcing material, in particular selected from the group consisting of glass fibers; Carbon fibers; Aramid fibers; Minerals; in particular sheet silicates; Graphite; Hollow glass spheres; Ceramic particles and / or fibers, in particular made of aluminum oxide and / or beryllium oxide, for modifying the thermal conductivity.

The plate-like fluid container can be designed as a temperature control plate, in which a temperature control means can be guided, for temperature control of power electronics of a vehicle or of an electrochemical system, in particular a battery or a battery pack, in particular a vehicle.

It is particularly advantageous if the base plate has a contact surface, in particular a flat contact surface, on a side opposite the at least one channel plate, via which one or more batteries that can be arranged on the side of the base plate opposite the channel plates or a battery on the side opposite the channel plate Battery pack that can be arranged on the base plate are directly contactable, in particular are thermally contactable.

The present invention further comprises a battery temperature control arrangement, which comprises a plate-like fluid container as described above and one or more batteries or a battery pack, wherein the one or more batteries or the battery pack are preferably arranged on a side of the base plate opposite the channel plate and directly via the contact surface of the base plate or contacted indirectly, e.g. are glued. An adhesive connection is sufficient here, since no fluid pressure is applied to the relevant contact surface.

In the following, steps of a method for producing the plate-like fluid container described above are described, that is to say in particular for forming the structurally adhesive connection of elements of the plate-like fluid container.

• - Ausschneiden der Grundplatte aus einer Metallplatte;
• - Strukturierung der zur Verbindung vorgesehenen Oberfläche der Metallplatte mittels eines chemischen und/oder mechanischen Aufrauverfahrens, insbesondere durch chemisches Ätzen, kristallographisches Ätzen und/oder im Falle einer Metalllegierung durch Ablegieren;
• - Formen der Kanalplatte aus einer thermoplastischen Formmasse wobei ggf. ein Anschlussbauteil einstückig mitgeformt wird;

• - Plastifizieren der zur Verbindung vorgesehenen Oberfläche bzw. Oberflächenabschnitte der Kanalplatte
• - Aufpressen der Kanalplatte auf die strukturierte Oberfläche der Metallplatte.

A first variant of such a method for producing the plate-like fluid container described above comprises at least the following steps for producing a plate-like fluid container:

• - Cutting out the base plate from a metal plate;
• Structuring of the surface of the metal plate provided for connection by means of a chemical and / or mechanical roughening process, in particular by chemical etching, crystallographic etching and / or in the case of a metal alloy by alloying;
• - Shaping the channel plate from a thermoplastic molding compound, with a connection component possibly also being formed in one piece;

• - Plasticizing the surface or surface sections of the channel plate provided for connection
• - Pressing the channel plate onto the structured surface of the metal plate.

The channel plate can be molded from a thermoplastic molding compound and the connecting component optionally molded at the same time, for example by means of injection molding.

• - Ausschneiden der Kanalplatte aus einer Metallplatte;
• - Einformen der kanalartigen Vertiefungen in die Kanalplatte;
• - Strukturierung der zur Verbindung vorgesehenen Oberfläche der Metallplatte mittels eines chemischen und/oder mechanischen Aufrauverfahrens, insbesondere durch chemisches Ätzen, kristallographisches Ätzen und/oder im Falle einer Metalllegierung durch Ablegieren;
• - Formen der Grundplatte aus einer thermoplastischen Formmasse wobei ggf. ein Anschlussbauteil einstückig mitgeformt wird;
• - Plastifizieren der zur Verbindung vorgesehenen Oberfläche bzw. Oberflächenabschnitte der Grundplatte
• - Aufpressen der Grundplatte auf die strukturierte Oberfläche der Metallplatte.

A second variant of such a method for producing the plate-like fluid container described above comprises, for. B. at least the following steps to manufacture a plate-like fluid container:

• - Cutting out the channel plate from a metal plate;
• - Shaping the channel-like depressions in the channel plate;
• Structuring of the surface of the metal plate provided for connection by means of a chemical and / or mechanical roughening process, in particular by chemical etching, crystallographic etching and / or in the case of a metal alloy by alloying;
• - Shaping the base plate from a thermoplastic molding compound, with a connection component possibly also being formed in one piece;
• - Plasticizing the surface or surface sections of the base plate provided for connection
• - Pressing the base plate onto the structured surface of the metal plate.

• - Ausschneiden der Grundplatte aus einer Metallplatte;
• - Ausschneiden der Kanalplatte aus einer Metallplatte;
• - Einformen der kanalartigen Vertiefungen in die Kanalplatte;
• - Strukturierung der zur Verbindung vorgesehenen Oberfläche der Metallplatte mittels eines chemischen und/oder mechanischen Aufrauverfahrens, insbesondere durch chemisches Ätzen, kristallographisches Ätzen und/oder im Falle einer Metalllegierung durch Ablegieren;
• - Formen eines Anschlussbauteils, eines Verteilerkanalbauteils oder einer Verteilerlage aus einer thermoplastischen Formmasse;
• - Plastifizieren der aus thermoplastischer Formmasse gebildeten zur Verbindung vorgesehenen Oberfläche bzw. Oberflächenabschnitte
• - Aufpressen des aus thermoplastischer Formmasse gebildeten Elements auf die strukturierte Oberfläche der Metallplatte.

A third variant of such a method for producing the plate-like fluid container described above comprises at least the following steps for producing a plate-like fluid container:

• - Cutting out the base plate from a metal plate;
• - Cutting out the channel plate from a metal plate;
• - Shaping the channel-like depressions in the channel plate;
• Structuring of the surface of the metal plate provided for connection by means of a chemical and / or mechanical roughening process, in particular by chemical etching, crystallographic etching and / or in the case of a metal alloy by alloying;
• - Molding of a connection component, a distribution channel component or a distribution layer from a thermoplastic molding compound;
• - Plasticizing the surface or surface sections formed from thermoplastic molding compound intended for connection
• - Pressing the element formed from thermoplastic molding compound onto the structured surface of the metal plate.

• - Zumindest die Bereiche des jeweiligen aus einer thermoplastischen Formmasse gebildeten Elements, die beim Anpressen in Kontakt mit dem jeweiligen aus Metall oder einer Metalllegierung gebildeten Element treten, werden vor Herstellen des Kontakts auf Temperaturen oberhalb der Glasübergangstemperatur der thermoplastischen Formmasse erwärmt.

The aforementioned method steps can advantageously be supplemented by the following step:

• - At least the areas of the respective element formed from a thermoplastic molding compound which come into contact with the respective element formed from metal or a metal alloy when pressed are heated to temperatures above the glass transition temperature of the thermoplastic molding compound before making contact.

• - Erwärmen des aus einem Metall oder einer Metalllegierung gebildeten Elements auf eine ausreichende Temperatur, so dass beim Kontaktieren des jeweiligen aus einer thermoplastischen Formmasse gebildeten Elements mit dem jeweiligen aus Metall oder einer Metalllegierung gebildeten Element die Kontaktflächen des aus einer thermoplastischen Formmasse gebildeten Elements auf eine Temperatur oberhalb der Glasübergangstemperatur der thermoplastischen Formmasse erwärmt werden.

In addition, the first three process steps of all three variants can be supplemented by the following step:

• - Heating the element formed from a metal or a metal alloy to a sufficient temperature so that when the respective element formed from a thermoplastic molding compound comes into contact with the respective element formed from metal or a metal alloy, the contact surfaces of the element formed from a thermoplastic molding compound to a temperature be heated above the glass transition temperature of the thermoplastic molding composition.

• - Abkühlen der verbundenen Bauteile zur Verfestigung der Verbindung.

Likewise or alternatively, the first three process steps of all three variants can be supplemented by the following step:

• - Cooling of the connected components to solidify the connection.

In addition, the present invention relates to the use of a plate-like fluid container according to the invention for temperature control, in particular cooling of power electronics, e.g. a vehicle, or for temperature control, in particular for cooling or heating an electrochemical system, in particular a battery or a battery pack, in particular a vehicle.

In the following, a plate-like fluid container according to the invention is described in more detail with reference to figures. Various elements that are essential to the invention or also advantageous further development elements are named in the context of a specific example, and some of these elements can also be used as such for further development of the invention - also removed from the context of the respective example and further features of the respective example. Furthermore, the same or similar reference symbols are used in the figures for the same or similar elements, and their explanation is therefore partially omitted.

• 1 bis 5 Schnittansichten eines erfindungsgemäßen plattenartigen Fluidbehälters gemäß einer ersten Ausführungsform,
• 6 eine Schnittansicht eines erfindungsgemäßen plattenartigen Fluidbehälters gemäß einer zweiten Ausführungsform,
• 7 eine Unteransicht eines erfindungsgemäßen plattenartigen Fluidbehälters
• 8 eine Draufsicht des plattenartigen Fluidbehälters aus 7,
• 9 eine Schnittansicht des plattenartigen Fluidbehälters aus 7 und 8,
• 10 eine weitere Schnittansicht eines plattenartigen Fluidbehälters in einer Variante zu 9,
• 11 eine Draufsicht eines erfindungsgemäßen plattenartigen Fluidbehälters gemäß einem weiteren Ausführungsbeispiel,
• 12 eine Schnittansicht des plattenartigen Fluidbehälters aus 11,
• 13 eine weitere Schnittansicht eines plattenartigen Fluidbehälters ähnlich 12,
• 14 eine Seitenansicht einer erfindungsgemäßen Batterietemperieranordnung,
• 15 eine Seitenansicht einer alternativen erfindungsgemäßen Batterietemperieranordnung,
• 16 eine Schnittansicht eines weiteren plattenartigen Fluidbehälters, und
• 17 eine Schnittansicht eines Abschnitts eines erfindungsgemäßen plattenartigen Fluidbehälters nach einem Schälversuch.

Show it

• 1 to 5 Sectional views of a plate-like fluid container according to the invention according to a first embodiment,
• 6th a sectional view of a plate-like fluid container according to the invention according to a second embodiment,
• 7th a bottom view of a plate-like fluid container according to the invention
• 8th a plan view of the plate-like fluid container 7th ,
• 9 FIG. 4 shows a sectional view of the plate-like fluid container 7th and 8th ,
• 10 a further sectional view of a plate-like fluid container in a variant 9 ,
• 11 a top view of a plate-like fluid container according to the invention according to a further embodiment,
• 12th FIG. 4 shows a sectional view of the plate-like fluid container 11 ,
• 13 a further sectional view of a plate-like fluid container similar to 12th ,
• 14th a side view of a battery temperature control arrangement according to the invention,
• 15th a side view of an alternative battery temperature control arrangement according to the invention,
• 16 a sectional view of another plate-like fluid container, and
• 17th a sectional view of a portion of a plate-like fluid container according to the invention after a peeling test.

1 shows a sectional view through a plate-like fluid container according to the invention 1 according to a first embodiment. The plate-like fluid container 1 is from a base plate 2 formed, which has a passage opening 21st having. With the base plate 2 is a connection element 8th (in the present case a nozzle 8th ) connected to the passage opening 21st surrounds. On the connecting element 8th facing away from the base plate 2 is a channel plate 3 arranged and with the base plate 2 connected. The channel plate 3 has a plurality of channel-like depressions 3a on that along with the base plate 2 one fluid channel each 4th form. At the in 1 The embodiment shown is the connection element 8th formed from a thermoplastic material, while the base plate 2 and the channel plate 3 are formed from metal or a metal alloy. The connection between the base plate 2 and the channel plate 3 takes place through welded connections 32 . This is in 1 by the triangles at the points of contact between the base plate 2 the channel plate 3 indicated. The structural adhesive connection 23 between the base plate 2 and the connection element 8th takes place in the manner according to the invention. The connection is established, for example, in such a way that at least in the connection areas, ie the areas in which the base plate 2 with the connector 8th is in contact, a roughening 20th the metallic surface of the base plate 2 takes place, for example by etching the surface of the base plate 2 in this area. The etching can also take place over the entire surface. Following this, the connection element 8th Made of a thermoplastic material, for example, heated at the joint and on the base plate 2 pressed on. As a result of the heating, the thermoplastic material is plasticized, which occurs when it is pressed into the roughened surface of the base plate 2 penetrates. As soon as the thermoplastic material has cooled down, it creates an extremely high tensile strength bond 23 between the thermoplastic material of the connection element 8th and the base plate 2 guaranteed. In the event of a tensile load and, in particular, a peel load on the structural adhesive connection between the base plate 2 and the connection element 8th Beyond the load limit of the materials, it is thus ensured that no breakage or failure of the material joint between the base plate 2 and connection element 8th he follows. There is more likely a break or crack in the connection element 8th expected.

2 Fig. 10 shows another example of a plate-like fluid container 1 according to the first embodiment of the present invention. The structural design is the plate-like fluid container 1 according to 2 identical to the plate-like fluid container 1 according to 1 . In contrast to the plate-like fluid container 1 according to 1 is the plate-like fluid sheet 1 according to 2 however, made of different materials. This is the case with the plate-like fluid container 1 according to 2 the channel plate 3 formed from a thermoplastic material, while the base plate 2 and the connection element 8th are formed from a metal or a metal alloy. The bond between the base plate 2 and connection element 8th takes place by means of welded connections 32 . The channel plate 3 is with the base plate 2 connected in a fluid-tight manner by means of a structurally adhesive connection. Im in 2 The section of the sectional illustration shown here are four connection points 23 shown in which the channel plate 3 facing surface of the base plate in each case roughening 20th having.

3 shows a further section through a plate-like fluid container according to the invention 1 , the structure of which is geometrically identical to the plate-like fluid containers 1 the 1 and 2 is. In contrast to the 1 and 2 are in the plate-like fluid container 1 according to 3 however, both the connection element 8th as well as the channel plate 3 formed from a thermoplastic material. The base plate 2 is made of metal or a metal alloy and has roughened areas on both surfaces 20th on. The structural adhesive connection 23 ' , 23 both of the connection element 8th as well as the channel plate 3 with the base plate 2 takes place in each case structurally adhesive as described above for the connections of different materials.

4th shows a further embodiment of a plate-like fluid container according to the invention 1 . In the 4th illustrated embodiment is with the embodiment according to 2 geometrically largely identical. The base plate 2 and the connection element 8th are both formed from a metal alloy, for example an aluminum alloy, and one below the other around the through opening 21st all around by means of a soldered connection 31 connected. The base plate 2 is on their entire the channel plate 3 facing surface with a roughening 20th provided, through which the structural adhesive connection between the base plate 2 and channel plate 3 is realized. In addition, there are flow elements here 6th (eg in the form of fins) into the respective fluid channels 4th brought in. The flow elements 6th are in turn made of thermoplastic material and at the corresponding connection areas 23 " with the base plate 2 connected. Also the flow elements 6th can use a structurally adhesive connection to the base plate 2 be connected.

5 shows a further embodiment of a plate-like fluid container according to the invention 1 . Here is the channel plate 3 formed from a thermoplastic material, while the connection element 8th like the base plate 2 is formed from metal. In contrast to the preceding exemplary embodiments, the connection element is 8th with the channel plate 3 connected. The one to the channel plate 3 facing surfaces of the base plate 2 and the connection element 8th Both show roughening over the entire surface 20th , 20 ' on. The connection 23 ' , 23 between connection element 8th and the channel plate 3 on the one hand or the base plate 2 and the channel plate 3 on the other hand, it is produced by means of a structurally adhesive connection.

6th Fig. 10 shows an example of a plate-like fluid container 1 according to the second embodiment of the present invention, which essentially corresponds to the embodiment according to 5 is trained. In contrast to the embodiment according to 5 are the connection element 8th and the base plate 2 formed in one piece. The element formed here as a whole from connection element 8th and base plate 2 is made of thermoplastic material. The fluid-tight connection 23 for only in the areas 20th roughened channel plate 3 takes place by means of a structurally adhesive connection.

7th shows a bottom view of a plate-like fluid container according to the invention 1 . The fluid container 1 has an approximately square base plate 2 and two rectangular ones next to each other on the same surface 2a the base plate 2 arranged channel plates 3 on. Any channel plate 3 points away from the base plate 2 lifting channel-like depressions 3a on which together with the base plate 2 Fluid channels 4th form. Outside the channel-like depressions 3a lie the channel plates 3 on the base plate 2 at. The fluid channels 4th are designed to take a fluid from a fluid inlet 3b to a fluid outlet 3c respectively.

Any channel plate 3 has three fluid channels 4th on, with the associated fluid channel inlets 3b and the fluid channel outlet 3c on one short side of the channel plates 3 are arranged. The fluid channel inlets 3b and the fluid channel outlets 3c are in the base plate 2 arranged and with one on the the channel plates 3 opposite side of the base plate 2 arranged distribution channel component 5 connected The manifold component 5 is in 7th not shown because it is on the side facing away from the viewer. The fluid channel inlets 3b and outlets 3c are shown here with dashed lines for better understanding. Any fluid channel 4th extends from the fluid channel inlet 3b along a longitudinal axis of a channel plate 3 up to an opposite short side of the channel plate 3 . On the opposite short side of the channel plate 3 each fluid channel 4th forms a curve of 180 ° and extends back to the fluid channel outlet 3c . The fluid channel outlet 3c extends over almost the entire width of the channel plate 3 and is designed as a common fluid channel outlet for all three fluid channels. The fluid inlets 3b are through the canal walls 3d the channel-like depressions 3a from the fluid channel outlet 3c separated so that the fluid flowing into the fluid channels cannot flow directly to the fluid channel outlet. The arrows in 7th indicate a possible flow direction of the fluid. However, the direction of flow can also be the other way round, in which case the fluid channel outlet 3c a common fluid channel inlet and the fluid channel inlets 3b Form fluid channel outlets.

Here, too, as in the previous examples, the base plate 2 or the respective duct plate 3 be formed from metal, for example from aluminum or an aluminum alloy, while on the other hand the complementary component to this, ie the base plate 2 or the respective duct plates 3 are each formed from thermoplastic material. A similar combination of materials (metal / plastic) is also used for the distribution channel component, not shown 5 possible with the respective duct plates 3 connected is. The respective connection between the base plate 2 and the channel plates 3 or the manifold component 5 can also be done by means of a structurally adhesive connection, as described above.

8th Figure 13 shows a plan view of the plate-like fluid container 1 out 7th , d .H. from that of the surface 2a opposite contact surface 2 B . On the the channel plates 3 opposite side of the base plate 2 is on one edge of the base plate 2 a manifold component 5 on the base plate 2 attached. The manifold component 5 is arranged so that its longitudinal direction is perpendicular to the longitudinal direction of the channel plates 3 runs. The manifold component 5 extends over almost the entire width of the base plate 2 and covers the channel plates 3 in a transverse direction of the channel plates 3 so that the distribution channel component 5 the fluid channel inlets 3b and the fluid channel outlets 3c the channel plates 3 runs overlapping.

The manifold component 5 has a manifold plate 5g on, in which two stand out from the base plate 2 lifting, along the distribution channel 5 running, channel-like depressions 5a , 5b with sloping duct wall sections 5k are formed, which together with the base plate 2 two along the manifold component 5 extending, parallel fluid channels 7a and 7b form. Part of the base plate 2 , which from the manifold plate 5g is covered, thus forms a flat side wall of the distribution channel component. One to the center of the base plate 2 downward fluid channel 7a can thereby form a feed channel to the fluid to all fluid channel inlets 3b the channel plates 3 feed directly. One to the edge of the base plate 2 downward fluid channel 7b can thereby form a drainage channel to divert the fluid from the fluid channel outlets 3c the channel plates 3 to be discharged directly.

Centrally with respect to the longitudinal direction of the distribution channel component 5 is in the channel-like depression 5a of the supply duct 7a a distribution duct feed line 5d arranged. In the distribution duct feed line 5d is an inlet port 8a attached, which is connectable to a fluid supply line with which the fluid container 1 a fluid can be supplied. Analog is also in the middle of the channel-like depression 5b of the drainage channel 7b a manifold derivation 5c arranged. In the distribution channel derivation 5c is an outlet port 8b attached, which is connectable to a fluid discharge line with which from the fluid container 1 a fluid can be removed.

9 Fig. 13 shows a sectional view of the plate-like fluid container 1 out 8th along an inclined cross section AA through the base plate 2 , the manifold component 5 and one of the channel plates 3 , more precisely in the rectangular cutout K1 . The bottom plate is a channel plate 3 recognizable in the 8th lies below the drawing plane. On a right-hand side of the sectional view are the two fluid channels lying on the right 4th the channel plate 3 recognizable which of the channel-like depressions 3a and the base plate 2 are formed. On the base plate 2 is the manifold plate 5g of the manifold component 5 arranged.

In the middle of the fluid container 1 channel-like depression located towards it 5a the manifold plate 5g is the inlet port 8a attached. Via the inlet port 8a can a fluid the supply channel 7a are supplied, which extends here perpendicular to the plane of the drawing. On the to the edge of the fluid container 1 the drainage channel extends towards the side 7b also perpendicular to the plane of the drawing.

Like in particular from 9 can be seen, through the overlapping arrangement of the manifold plate 5g , the base plate 2 and the channel plate 3 in the plate-like fluid container according to the invention 1 a fluid connection between the individual plates and thus between the various fluid channels can be established without a large number of hoses and connecting elements.

In the in 9 The variant shown are the base plate 2 , and the distribution plate 5g , ie the manifold component 5 , each made of metal or a metal alloy, for example aluminum. They can be soldered to one another, for example 31 be connected. The channel plate 3 and the connecting piece 8a are each formed from a thermoplastic molding compound The connection piece 8a and the manifold component 5 are connected to one another by means of a structurally adhesive connection, the connection areas 23 ' run radially around the inner edge of the opening 21st in the manifold component 5 . The channel plate 3 and the base plate 2 are also by means of a structurally adhesive connection over the connection areas 23 connected to each other in a fluid-tight manner. The connecting plane E runs horizontally, ie parallel to the main plane of extent of the base plate 2 , Duct plate 3 and distributor plate 5g . The illustrated connection level E 'of the connection 23 ' runs perpendicular to this connecting plane E. Viewed three-dimensionally, this results around the passage opening 21st a cylindrically extending connecting surface.

10 shows an alternative variant of a plate-like fluid container according to the invention 1 according to the second embodiment. The section along the lines AA in FIG 8th inside the box K1 . It can be seen that the inlet port 8a integral with the manifold component 5 is trained. The one-piece component also includes - in 10 not recognizable - the outlet nozzle 8b . The one-piece component, formed from the inlet nozzle 8a , Outlet port 8b and manifold component 5 , is formed from a thermoplastic molding compound. The base plate 2 and the channel plate 3 are each made of a metal alloy and are connected to one another by means of a soldered joint 31 connected. In the example chosen, the one-piece component is comprising the distribution channel component 5 and the sockets 8a and 8b again by means of a structurally adhesive connection to the base plate 2 connected.

11 shows a further embodiment of a plate-like fluid container according to the invention 1 , in which, in contrast to the embodiment according to 8th only one channel plate 3 on the base plate 2 is present, the channel plate 3 and the manifold component 5 on the same side of the base plate 2 are arranged. The channel plate 3 is directly with the base plate 2 connected, while the manifold component 5 the supply and discharge of fluids into and out of the channel plate 3 is used via the respective inlet or outlet openings.

12th shows a section along the line BB inside the box K2 , as in 11 shown. Here is the base plate 2 in the in 12th selected representation the lowermost element of the plate-like fluid container 1 with the base plate 2 is in the connecting areas 23 directly the channel plate 3 connected. In the embodiment shown, the base plate is 2 formed from a metal such as aluminum. The channel plate formed from a thermoplastic molding compound 3 is structurally adhesive to the base plate as described above 2 connected. The manifold component 5 is in the present case made of two metallic layers, namely the manifold base plate 5h and the manifold plate 5g , which are welded together, formed and with the channel plate 3 in the connection area 23 ' around the through opening 21st circumferentially connected in a fluid-tight manner by means of a structurally adhesive connection. The inlet port 8a , for example the supply of the manifold component 5 is also made of a thermoplastic material and can be used with the metallic distribution channel component 5 also be structurally adhesively connected.

13 shows another variant of the in 12th illustrated fluid container 1 , the fluid distribution elements as a further element 6th in the fluid channels 4th having. These elements can for example also be formed from thermoplastic material and with the metallic base plate 2 be connected by means of structural adhesive connection.

14th shows a battery temperature control arrangement 100 with a plate-like fluid container 1 . The plate-like fluid container 1 has a channel plate 3 , a base plate 2 and on this base plate 2 connection elements on the left side 8a , 8b on. On the contact surface 2 B the base plate 2 are multiple batteries 101 arranged that together have a battery pack 102 form. This means that there is direct thermal contact between the contact surface 2 B the base plate and the battery pack 102 or the batteries 101 given. It would also be possible that between the contact surface 2 B the base plate 2 and the battery pack 102 an adhesive or other intermediate layer is present, so that the contact is only indirect.

15th shows a battery temperature control arrangement 100 with a plate-like fluid container 1 . The plate-like fluid container 1 has a channel plate 3 , a base plate 2 and on the channel plate 3 arranged on the left side edge and with this channel plate 3 overlapping a distribution channel component 5 with a manifold base plate 5h and a manifold plate 5g on. The manifold component 5 has connection elements 8a , 8b as well as a distribution channel drain 5c and a manifold feed line 5d on. On the contact surface 3k the channel plate 3 are multiple batteries 101 arranged that together have a battery pack 102 form. This means that there is direct thermal contact between the contact surface 3k the channel plate 3 and the battery pack 102 or the batteries 101 given.

In the 14th and 15th battery temperature control arrangements shown 100 can for example be installed in a tub.

16 Fig. 3 shows another plate-like fluid container 1 with a base plate 2 and a channel plate 3 , with the fluid channels here 4th through channel-like depressions 2c , 3a in both panels 2 , 3 are formed. Both the base plate 2 as well as the channel plate 3 are made of metal and are at many junctions 32 soldered together. The connection element 8th is formed from a thermoplastic molding compound and is between bulges 42 , 43 of the two metallic plates 2 , 3 inserted at the front and there with two metallic plates all around 2 , 3 structurally adhesively bonded. The connection is as in the example of 9 essentially cylindrical circumferential.

17th shows the result of a peel tensile test of a composite of an element made of thermoplastic material T and an element made of metal M, which are structurally adhesively connected to one another. To produce this structurally adhesive connection, the metal surface is first roughened. The thermoplastic material is then applied in the plasticized state to the metal surface or applied cold to the heated metal surface and plasticized there, after which the thermoplastic material penetrates at least partially into the cavities or depressions in the metal surface created during roughening. After cooling, a permanent, fluid-tight bond between metal and thermoplastic is made possible. The elements T and M are therefore structurally adhesively connected. The picture on the left shows the immediate and direct bond between the elements T and M. If the bond is exposed to a peel tension, ie a tensile test is carried out in which the elements T and M are from the same edge, here the right edge, beyond the load limit directions pointing away from the bond plane E are drawn in accordance with the two arrows, the bond does not fail at the point of direct bond between the elements T and M, i.e. the bond plane E, but tears within the element T made of thermoplastic material ( 17th , right side).

Claims (24)

Plate-like fluid container (1) for guiding a fluid, comprising the following elements: at least two interconnected plates (2, 3), at least one channel-like recess (3a) for guiding the fluid being formed in at least one plate (2, 3), and the at least one plate (2, 3) outside the channel-like depressions (3a) is connected to the respective other plate (3, 2) in connection areas in such a way that the at least one channel-like depression (3a) of the at least one plate (3) together forms at least one fluid channel (4) with the respective other plate (3, 2), as well as at least one connection element (8) and / or at least one distribution channel component (5) which is or are connected to at least one of the at least two plates (2, 3) is or are connected, with at least one pair of the interconnected elements (plates (2, 3) one below the other, connecting element (8) plate (2, 3) and / or distribution channel component (5) plate (2, 3) ) structure adhesively bonded together and one of the elements of the pair made of a metal or a metal alloy and the other of the elements of the pair are formed from a thermoplastic molding compound, characterized in that when a peel pull is performed at 293 K above a load limit, failure of the thermoplastic molding compound occurs in the vicinity of the material boundary between structurally adhesively bonded metal or metal alloy on the one hand and thermoplastic molding compound on the other. Plate-like fluid container (1) according to Claim 1 , characterized in that a plate designed as a base plate (2), at least one plate arranged as a channel plate (3) arranged directly on one side of the base plate (2), with at least one channel-like recess (3a ) is molded in for guiding the fluid, and the at least one channel plate (3) outside the channel-like depressions (3a) is connected to the base plate (2) in connection areas in such a way that the at least one channel-like depression (3a) of the at least one channel plate (3 ) together with the base plate (2) each forms at least one fluid channel (4), as well as at least one connection element (8) and / or at least one distribution channel component (5), the side of the base plate (3) facing away from the channel plate (3) 2) and / or are connected to the side of the channel plate (3) facing away from the base plate (2), at least one pair of the interconnected elements being structurally adhesive with connected to each other and one of the elements of the pair of a metal or a metal alloy and the other of the elements of the pair are formed from a thermoplastic molding compound. Plate-like fluid container (1) for guiding a fluid, comprising the following elements: at least two interconnected plates (2, 3), at least one channel-like recess (3a) for guiding the fluid being formed in at least one plate (2, 3), and the at least one plate (2, 3) outside the channel-like depressions (3a) is connected to the respective other plate (3, 2) in connection areas in such a way that the at least one channel-like depression (3a) of the at least one plate (3) together forms at least one fluid channel (4) with the respective other plate (3, 2), at least one connection element (8) formed in one piece with one of the plates (2, 3), the plates (2, 3) being structurally adhesively connected to one another and the at least one plate (2) made of metal or a metal alloy and the at least one other plate (3) are formed from a thermoplastic molding compound, characterized in that during a peeling pull durc At 293 K above a load limit, failure of the thermoplastic molding compound occurs in the vicinity of the material boundary between structurally adhesively bonded metal or metal alloy on the one hand and thermoplastic molding compound on the other. Plate-like fluid container (1) for guiding a fluid according to the preceding claim, comprising the following elements: a plate designed as a base plate (2), at least one plate designed as a channel plate (3) arranged directly on one side of the base plate (2), at least one channel-like recess (3a) for guiding the fluid being formed in each of the at least one channel plate (3), and the at least one channel plate ( 3) outside of the channel-like depressions (3a) is connected to the base plate (2) in connection areas in such a way that the at least one channel-like depression (3a) of the at least one channel plate (3) together with the base plate (2) each have at least one fluid channel (4 ) forms, as at least one connecting element (8) formed in one piece with the base plate (2) and / or the at least one channel plate (3), wherein the at least one channel plate (3) is structurally adhesively connected to the base plate (2) and one of the elements selected from the group consisting of the at least one channel plate (3) and base plate (2) made of a metal or a metal alloy and the other the elements are formed from a thermoplastic molding compound. Plate-like fluid container (1) according to one of the preceding claims, wherein at least one fluid channel inlet (3b) and / or at least one fluid channel outlet (3c) for the at least one fluid channel (4) is arranged in the base plate (2) or in the at least one channel plate (3), wherein at the at least one fluid channel inlet (3b) and / or the at least one fluid channel outlet (3c) on the side of the base plate (2) facing away from the channel plate (3) and / or on the side of the channel plate (3) facing away from the base plate (2) at least one connecting element (8) enclosing the at least one fluid channel inlet (3b) and / or the at least one fluid channel outlet (3c) is arranged and structurally adhesively connected to the base plate (2) and / or the channel plate (3) in a connecting area (23) and / or is formed in one piece with the base plate (2) and / or the channel plate (3).), Plate-like fluid container according to the preceding claim, characterized in that a) the at least one connection element (8) made of a thermoplastic material and the base plate (2) and the at least one channel plate (3) made of a metal or a metal alloy, b) the at least one connection element (8) and the base plate (2) a metal or a metal alloy and the at least one channel plate (3) made of a thermoplastic molding compound, c) the at least one connection element (8) and the at least one channel plate (3) made of a thermoplastic molding compound and the base plate (2) made of a metal or a Metal alloy, d) the at least one connection element (8) and the at least one channel plate (3) made of a metal or a metal alloy and the base plate (2) made of a thermoplastic molding compound, e) the at least one connection element (8) and the channel plate (3) ) in one piece and made of a thermoplastic molding compound and the at least one base plate (2) made of a metal or a metal alloy, f) the at least e A connection element (8) and the base plate (2) in one piece and made of a thermoplastic molding compound and the at least one channel plate (3) made of a metal or a metal alloy, g) the at least one connection element (8) made of a metal or a metal alloy and the base plate (2) and the at least one channel plate (3) made of a thermoplastic molding compound, or h) the at least one connection element (8) and the base plate (2) made of a thermoplastic molding compound and the at least one channel plate (3) made of a metal or a metal alloy , are formed. Plate-like fluid container (1) according to Claim 1 or 2 , wherein in the base plate (2) or the at least one channel plate (3) at least one fluid channel inlet (3b) and / or at least one fluid channel outlet (3c) for the at least one fluid channel (4) is arranged on which the channel plate (3) facing away On the side of the base plate (2) and / or on the side of the channel plate (3) facing away from the base plate (2), at least one distribution channel component (5) predominantly made of uniform material enclosing the at least one fluid channel inlet (3b) and / or the at least one fluid channel outlet (3c), which has a feed channel (7a) for feeding a fluid to the at least one fluid channel inlet (3b) and / or a discharge channel (7b) for discharging a fluid from the at least one fluid channel outlet (3c), wherein at least one fluid channel inlet (3b) with the Supply channel (7a) of the distribution channel component (5) and / or at least one fluid channel outlet (3c) with the discharge channel (7b) of the distribution channel component (5) hydraulically v is connected, wherein the distribution channel component (5) outside the supply channel (7a) and / or the discharge channel (7b) is structurally adhesively connected to the base plate (2) and / or the channel plate (3) in a connection area (23), characterized in that that at least one of the elements selected from the base plate (2), the at least one channel plate (3) and the at least one distribution channel component (5) is made from a thermoplastic molding compound and at least one element not made from a thermoplastic molding compound is made from a metal or a metal alloy or are. Plate-like fluid container according to the preceding claim, characterized in that a) the at least one distribution channel component (5) made of a thermoplastic material and the base plate (2) and the at least one channel plate (3) made of a metal or a metal alloy, b) the distribution channel component ( 5) and the base plate (2) made of a metal or a metal alloy as well as the at least one channel plate (3) made of a thermoplastic material, c) the distribution channel component (5) and the at least one channel plate (3) made of a thermoplastic material and the base plate ( 2) made of a metal or a metal alloy, d) the distribution channel component (5) and the at least one channel plate (3) made of a metal or a metal alloy and the base plate (2) made of a thermoplastic material, e) the distribution channel component (5) made of a Metal or a metal alloy and the at least one channel plate (3) and the base plate (2) made of a thermo plastic plastic, or f) the distribution channel component (5) and the base plate (2) made of a thermoplastic plastic and the at least one channel plate (3) made of a metal or a metal alloy. Plate-like fluid container (1) according to one of the Claims 1 or 2 and 5 to 8, with at least one fluid channel inlet (3b) and / or at least one fluid channel outlet (3c) for the at least one fluid channel (4) on which the channel plate (4) is arranged in the base plate (2) or the at least channel plate (3). 3) facing away from the base plate (2) and / or on the side of the channel plate (3) facing away from the base plate (2) a distribution channel component (5) enclosing the at least one fluid channel inlet (3b) and / or at least one fluid channel outlet (3c), which a feed channel (7a) for feeding a fluid to the at least one fluid channel inlet (3b) and / or a discharge channel (7b) for discharging a fluid from the at least one fluid channel outlet (3c), at least one fluid channel inlet (3b) with the feed channel (7a) of the distribution channel component (5) and / or at least one fluid channel outlet (3c) with the discharge channel (7b) of the Manifold component (5) is connected, the manifold component (5) comprising at least two layers, namely a first manifold layer (5a) and a second manifold layer (5b), wherein the manifold component (5) outside of the supply channel (7a) and / or the discharge channel (7b) is structurally adhesively connected to the base plate (2) or the at least one channel plate (3) in a connection area (23), characterized in that at least one of the elements is selected from the base plate (2), the at least one channel plate (3) , the first distribution layer (5a) and the second distribution layer (5b) made of a thermoplastic molding compound and at least one other of the elements selected from the base plate (2), the at least one channel plate (3), the first distribution layer (5a) and the second distribution layer (5b) element formed from a thermoplastic molding compound is or are formed from a metal or a metal alloy. Plate-like fluid container (1) according to the preceding claim, wherein one of the first and second distribution layers (5a, 5b) are made of a metal or a metal alloy and the other of the first and second distribution layers (5b, 5a) are made of a thermoplastic material. Plate-like fluid container (1) according to one of the preceding claims, comprising a base plate (2) and several channel plates (3) arranged thereon, wherein the distribution channel component (5) takes over the supply and / or disposal for several or all channel plates (3). Plate-like fluid container according to one of the preceding claims, characterized in that the plate-like fluid container comprises further elements, in particular turbulizers and / or guide elements, these further elements being structurally adhesively connected to the base plate and / or the channel plate, with at least one pair of structurally adhesively connected to one another Elements are formed from a metal or a metal alloy on the one hand and from a thermoplastic molding compound on the other hand. Plate-like fluid container (1) according to one of the preceding claims, characterized in that the channel-like depressions (3) are predominantly or exclusively formed in the at least one channel plate (3). Plate-like fluid container (1) according to one of the preceding claims, characterized in that for a pair of the structurally adhesively interconnected elements, in which one element is formed from a metal or a metal alloy and the other element is formed from a thermoplastic molding compound, the following applies: An element formed from a metal or a metal alloy, at least in the connection areas in which the structurally adhesive connection (23) is made with the element formed from a thermoplastic molding compound, or is roughened over the entire surface, in particular by means of a chemical and / or mechanical roughening process, in particular by chemical etching , crystallographic etching and / or in the case of a metal alloy by alloying. Plate-like fluid container (1) according to the preceding claim, characterized in that the metallic boundary surface of the structurally adhesive connection (23) is roughened and has depressions and / or cavities which are at least partially filled by the thermoplastic molding compound. Plate-like fluid container (1) according to one of the preceding claims, characterized in that the metal is selected from the group consisting of aluminum, stainless steel, copper or the metal alloy is selected from the group consisting of alloys of copper or aluminum, in particular aluminum Series 3xxx (aluminum-manganese alloys), 5xxx (aluminum-magnesium alloys) and 7xxx (aluminum-zinc alloys). Plate-like fluid container (1) according to one of the preceding claims, characterized in that the thermoplastic molding compound is at least one thermoplastic polymer selected from the group consisting of polyamides, in particular aliphatic and / or partially aromatic polyamides, such as PA6, PA66, PA12, PA1212, PA6I, PA 6T, PA6I / 6T, made of polyimides, polyamide-imides, polyphthalamides, polyaryl ether sulfones, polyether sulfones, polypropylene carbonates, polyaryl ether ketones, polyphenylene sulfides, polyether ether ketones, polycarbonates, polypropylene homopolymers, polyphenylene ethers or mixtures of the above-mentioned polyphenylene ethers or polybutylene terephthalate (PP) from at least two contains or consists of thermoplastic polymers. Plate-like fluid container (1) according to one of the preceding claims, characterized in that the thermoplastic molding compound additionally has at least one filler and / or reinforcing material, in particular selected from the group consisting of glass fibers; Carbon fibers; Aramid fibers; Minerals; in particular sheet silicates; Graphite; Hollow glass spheres; Ceramic particles and / or fibers, in particular made of aluminum oxide and / or beryllium oxide, for modifying the thermal conductivity. Plate-like fluid container (1) according to one of the preceding claims, characterized in that the connection element (8) is an originally formed, in particular injection-molded, additively manufactured connector or a deep-drawn, pressed, or machined, especially turned or milled connector. Plate-like fluid container (1) according to one of the preceding claims, characterized in that at least two adjoining elements made of a metal or a metal alloy are firmly connected to one another by means of soldering or welding, in particular laser welding. Plate-like fluid container (1) according to one of the preceding claims, characterized in that at least two adjoining elements made of a thermoplastic molding compound are connected to one another by means of ultrasonic welding, friction welding or gluing. Plate-like fluid container (1) according to any one of the preceding claims, characterized in that the plate-like fluid container (1) has a temperature control plate, in which a temperature control means can be guided, for temperature control of power electronics of a vehicle or of an electrochemical system, in particular a battery or a battery pack, in particular of a vehicle. Plate-like fluid container (1) according to one of the preceding claims, characterized in that the base plate (2) has a contact surface (2b) on a side opposite the at least one channel plate (3) via which one or more batteries (101) or a battery pack (102) can be contacted directly. Battery temperature control arrangement (100) comprising a plate-like fluid container (1) according to the preceding claim and one or more batteries (101) or a battery pack (102), wherein the one or more batteries (101) or the battery pack (102) on one of the channel plates ( 3) arranged opposite side of the base plate (2) and contacted directly or indirectly via the contact surface (2b) of the base plate (2), for example are glued.

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