DE102020125450A1 - Cooling device for a rechargeable battery - Google Patents

Abstract

The invention relates to a device (2) for cooling or tempering at least one storage module (3) of a rechargeable battery (1), the device (2) having a first single-layer or multi-layer film (4) and a further single- or multi-layer film (5) which are partially connected to one another to form at least one coolant channel (6) for a cooling fluid, and which have at least one coolant inlet element (16) and at least one coolant outlet element (17) which are flow-connected to the at least one coolant channel (6), comprises, wherein the coolant inlet element (16) and the coolant outlet element (17) each have a passage channel (18) for the coolant. At least one web (19) is arranged in the through-channel (18) of the coolant inlet element (16) and/or in the through-channel (18) of the coolant outlet element (17).

Description

The invention relates to a device for cooling or temperature control for at least one storage module of a rechargeable battery, the device having a first single-layer or multi-layer film and a further single-layer or multi-layer film which are partially connected to one another to form at least one coolant channel for a cooling fluid , and which has at least one coolant inlet element and at least one coolant outlet element, which are flow-connected to the at least one coolant channel, wherein the coolant inlet element and the coolant outlet element each have a passage channel for the coolant.

The invention also relates to a rechargeable battery with at least one storage module for electrical energy and at least one device for cooling or temperature control for the at least one storage module.

In addition, the invention relates to a vehicle with at least one rechargeable battery.

The service life and effectiveness as well as the safety of a rechargeable battery for so-called e-mobility also depend, among other things, on the temperature during operation. For this reason, a wide variety of concepts for cooling or tempering the accumulators have already been proposed. Essentially, the concepts can be divided into two types, namely air cooling and water cooling or cooling with liquids in general.

Heat sinks in which at least one coolant channel is formed are used for water cooling. These heat sinks are arranged between the individual modules of the accumulator or on the modules. A module is an independent unit of the accumulator, i.e. not necessarily just a cell.

For example, from the DE 10 2013 216 513 A1 a device for conditioning a battery pack by cooling and/or heating is known, comprising a plurality of battery modules arranged in at least one conditioning level, with two or more rows arranged parallel to one another each having one or more battery modules being provided in each conditioning level, with each row of battery modules of at least one separate fluid line through which a liquid or gaseous medium flows, as a heat exchanger, is contacted directly or indirectly via carrier means for the battery modules, the fluid lines being connected in parallel in terms of flow and having a common fluid supply and a common fluid return, and wherein the Fluid lines acting as heat exchangers themselves are designed geometrically individually in such a way that the fluid volume flow penetrating the same in each case is adapted to an individual cooling or heating requirement of the respective contacted series battery modules (3) is adjusted. The carrier is formed by a thermally conductive surface element, preferably made of metal, in particular a light metal such as aluminum or an aluminum alloy. To adapt the fluid volume flow of each fluid line to the individual cooling or heating requirement of the row of battery modules that is contacted in each case, each fluid line can have an individual partial narrowing of the flow cross section that is constant over the length.

When arranged on the modules, metallic heat sinks are often designed in such a way that they cover all the modules of the accumulator. However, the problem arises that due to tolerances, etc., the heat sink does not rest evenly on the modules. To remedy this, the heat sink is screwed to each individual module. However, this has the disadvantage that the production of the accumulator is correspondingly complex and therefore expensive. This in turn worsens the acceptance of e-mobility itself.

In order to remedy this problem, cooling devices that are flexible and can therefore be adapted to the ground have also already been described in the prior art. For example, describes the AT 520 018 A1 an accumulator with at least one storage module for electrical energy and at least one cooling device for cooling or temperature control for the at least one storage module, wherein the cooling device has at least one coolant channel, at least one coolant inlet and at least one coolant outlet, and wherein the cooling device has single-layer or multi-layer films. The coolant channel is formed by and between the foils. Furthermore, the cooling device rests with one of the foils on the at least one storage module.

The present invention is based on the object of improving the usability of the described cooling device with the two films in an electric vehicle or the cooling of a battery in an electric vehicle.

The object of the invention is achieved with the device mentioned in the introduction, in which in the through-channel of the coolant inlet element and/or at least one web is arranged in the passage channel of the coolant outlet element.

The object of the invention is also achieved with the battery mentioned at the outset, in which the device for cooling or temperature control for the at least one storage module is designed according to the invention.

In addition, the object of the invention is achieved with the vehicle mentioned at the outset, which has a rechargeable battery according to the invention.

The advantage here is that the inflow behavior or generally the flow behavior of the coolant into or in the at least one coolant channel can be positively influenced by the at least one web. With the at least one web, the pressure loss in the device can be reduced, in particular when the coolant flows into the coolant channel. As a result, the energy requirement of the device for cooling or temperature control and thus ultimately also of the vehicle can be reduced. In addition, this type of flow influencing is relatively simple and can therefore be implemented inexpensively without having to influence the coolant channel itself.

To further improve these effects, according to one embodiment variant of the invention, it can be provided that the at least one web extends over the entire cross-sectional width of the passage channel. As a side effect, the mechanical stability of the web can also be improved so that it can also be made thinner if necessary.

According to another embodiment variant of the invention, it can be provided that at least one transverse web is arranged on the at least one web, whereby according to one embodiment variant, the at least one transverse web is arranged at an angle to the web that is selected from a range of 20° to 90° °. With the at least one transverse web, turbulence of the coolant as it enters and/or exits the at least one coolant channel can be better avoided.

According to another embodiment variant of the invention, it can be provided that the coolant inlet element and/or the coolant outlet element has/have a section in which the cross section of the passage channel becomes larger, and that the at least one web is arranged in this section with the larger cross section. With the arrangement of the at least one web in the area of the cross-sectional enlargement, a pressure loss can be controlled better despite the increasing cross-sectional area.

It is advantageous if, according to one embodiment of the invention, the change in the cross-sectional area of the through-flow channel is not designed to be abrupt but rather continuous, in particular the section with the widening cross-section of the through-flow channel is designed in a funnel shape, since the effect of the at least one web in this Section of the passage channel can be improved.

In order to further improve the aforementioned effects, it can be provided according to a further embodiment variant of the invention that the at least one web is designed to taper in the direction of flow.

According to another embodiment variant of the invention, it can also be provided that the at least one web is designed with a curvature, which in particular can influence the flow behavior of the coolant when it flows into or out of the coolant channel.

According to a further embodiment variant of the invention, it can be provided that at least one spacer is arranged on the end region of the coolant inlet element and/or the coolant outlet element which adjoins the coolant duct or extends into the coolant duct, with which the coolant duct can be kept open and turbulence can thus be reduced.

For a better understanding of the invention, it is explained in more detail with reference to the following figures.

• 1 Eine wiederaufladbare Batterie in Schrägansicht mit einer Kühlvorrichtung;
• 2 Die Batterie nach 1 in Schrägansicht ohne Kühlvorrichtung;
• 3 Einen Ausschnitt aus einer Kühlvorrichtung im Querschnitt;
• 4 Ein Kühlmitteleinlasselement in Schrägansicht;
• 5 Eine Kühlvorrichtung in Seitenansicht;
• 6 Das Kühlmitteleinlasselement nach 4 im Längsschnitt;
• 7 Eine Ausführungsvariante des Kühlmitteleinlasselements in Frontansicht;
• 8 Eine weiter Ausführungsvariante des Kühlmitteleinlasselements in Frontansicht;
• 9 Eine andere Ausführungsvariante des Kühlmitteleinlasselements im Längsschnitt;
• 10 Eine weitere Ausführungsvariante des Kühlmitteleinlasselements in Frontansicht;
• 11 Ein Fahrzeug mit einer wiederaufladbaren Batterie.

They each show in a simplified, schematic representation:

• 1 A rechargeable battery in an oblique view with a cooling device;
• 2 The battery after 1 in oblique view without cooling device;
• 3 A section of a cooling device in cross section;
• 4 A coolant inlet element in oblique view;
• 5 A cooling device in side view;
• 6 The coolant inlet element after 4 in longitudinal section;
• 7 A variant of the coolant inlet element in front view;
• 8th Another variant of the coolant inlet element in front view;
• 9 Another embodiment variant of the coolant inlet element in longitudinal section;
• 10 A further variant of the coolant inlet element in front view;
• 11 A vehicle with a rechargeable battery.

As an introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numbers or the same component designations, it being possible for the disclosures contained throughout the description to be applied to the same parts with the same reference numbers or the same component designations. The position information selected in the description, such as top, bottom, side, etc., is related to the directly described and illustrated figure and these position information are to be transferred to the new position in the event of a change in position.

In the 1 and 2 is a rechargeable battery 1, also referred to as an accumulator (hereinafter referred to as battery 1), shown in an oblique view, wherein the 1 the battery 1 with a device 2 for cooling or tempering (hereinafter referred to as device 2) and the 2 the battery 1 without this device 2 shows.

The battery 1 includes a plurality of storage modules 3 for electrical energy. In the example shown there are 16 memory modules 3. However, this number is not to be understood as limiting.

The memory modules 3 can have several cells.

Since the basic structure of such batteries 1 for e-mobility is known from the relevant prior art, reference is made to this in order to avoid repetition.

As from the comparison of the two 1 and 2 As can be seen, the device 2 is arranged on one side of the battery 1, in particular at the top. However, it can also be provided that the device 2 is arranged on several sides of the battery 1 and extends over at least two surfaces of the battery 1, for example on the top and on the side and optionally on the bottom.

The device 2 can extend over all memory modules 3, in particular their upper side (as shown in 1 can be seen) so that all memory modules 3 can be cooled with only one device 2. In principle, however, it is also possible to provide multiple devices 2 in battery 1 or on battery 1, for example two or three or four, so that for example memory modules 3 are divided between two or three or four, etc. devices 2.

It should be pointed out that the terms top, etc. refer to the installation position of the battery 1 in a vehicle or motor vehicle.

In 3 a section of the device 2 is shown in cross section.

In general, the device 2 in all embodiment variants of the invention comprises a first single-layer or multi-layer film 4. With this first film 4, the device 2 is in contact with the storage module 3 or the storage modules 3, in particular directly. The installation takes place, for example, on the upper side of the storage modules 3, as was explained above. Since the first film 4 is flexible, that is to say is not stiff, this first film 4 can adapt better to unevenness in the storage modules 3 or between the storage modules 3 . A balancing mass between the device 2 and the memory modules 3 is not required. The heat transfer from the storage modules 3 to the device 2 can thus be improved.

In the embodiment of the device 2 after 3 this first film 4 is connected to a further film 5. This further film 5 is also multi-layered, but can also be single-layered. At least one coolant channel 6 is formed between the additional film 5 and the first film 4 . For this purpose, the additional film 5 can be connected to the first film 4 via webs 7 . The webs 7 can be formed, for example, during the connection of the first film to the other film 4, 5, for example by heat sealing or gluing. However, versions of the device 1 without these webs 7 are also possible.

The first film 4 can be glued to the other film 5 . However, other connection techniques can also be used to connect the first film 4 to the other film 5 . The connection techniques are preferably chosen in such a way that no additional measures have to be taken in order to obtain a liquid-tight design of the connection.

The respectively optimized course of the at least one coolant channel 6 or the coolant channels 6 depends, among other things, on the amount of heat that is to be dissipated, the geometry of the battery 1, etc., so that this is not discussed further.

As already stated, the first film 4 and optionally the further film 5 are multi-layered. In particular, they can consist of a laminate.

In the preferred embodiment variant, the first film 4 has or consists of a first plastic layer 8, a second plastic layer 9, and a layer 10 arranged between the two plastic layers. As already mentioned, the first film 4 can also be formed in one layer and then has the first plastic layer 8, which is optionally (fiber) reinforced.

If the further film 5 has the same structure, it can have or consist of a first plastic layer 11, a second plastic layer 12, and a layer 13 arranged between the two plastic layers. However, it can also consist of only one or both of the plastic layer(s) 11, 12, optionally (fiber) reinforced.

If necessary, the first film 4 and/or the further film 5 can have a reinforcement layer 14, 15, in particular connected to the first plastic layer 8, 11, which can also be connected to the layer 10, 13 or replace it. It is also possible that the first plastic layer 8, 11 or the second plastic layer 9, 12 is replaced by the reinforcement layer 14, 15.

In principle, other laminates can also be used. For example, only the first film 4 can be provided with the layer 10 or only the further film 5 with the layer 13. Two-layer or more than three-layer structures of the first film 4 and/or the further film 5 are also possible. However, the foil 4 and the further foil 5 are preferably of the same design.

In this embodiment variant, the at least one coolant channel 6 is not formed by separate components, but rather by the only partial connection of the first film 4 to the further film 5 . The wall or the walls of the at least one coolant channel 6 are thus formed by the first film 4 and the further film 5, preferably half in each case.

The layer 10, 13 can be electrically conductive. It can consist, for example, of an electrically conductive plastic, an electrically conductive elastomer, or be made of an electrically conductive paint. For this purpose, electrically conductive particles, such as graphite, metal particles, etc., can be mixed into the respective base material. The layer 10, 11 can also be in the form of a metal layer or a metalized plastic layer.

The first plastic layer(s) 8, 11 and/or the further plastic layer(s) 9, 12 and/or the metalized plastic layer(s) preferably consists of at least 80% by weight, in particular at least 90% by weight. , made of a thermoplastic material or an elastomer. The thermoplastic can be selected, for example, from a group comprising or consisting of polyethylene (PE), polyoxymethylene (POM), polyamide (PA), in particular PA 6, PA 66, PA 11, PA 12, PA 610, PA 612, polyphenylene sulfide (PPS), polyethylene terephthalate (PET), crosslinked polyolefins, preferably polypropylene (PP). The elastomer can be selected, for example, from a group comprising or consisting of thermoplastic elastomers, such as thermoplastic vulcanizates, olefin-, amine-, ester-based, thermoplastic polyurethanes, in particular thermoplastic elastomers based on ether/ester, styrene block copolymers , silicone elastomers.

It should be mentioned at this point that a plastic is understood to mean a synthetic or natural polymer that is produced from corresponding monomers.

The first plastic layer(s) 8, 11 and/or the further plastic layer(s) 9, 12 and/or the metalized plastic layer(s) preferably consists/consist of a so-called sealing film. This has the advantage that the respective layers can be connected directly to one another.

However, it is also possible to use other plastics, such as duroplastic plastics or duroplastic materials, which are then glued together, for example with an adhesive. Two-component adhesive systems based on polyurethane or silicone or also hot-melt adhesive systems are particularly suitable for this.

It should be mentioned at this point that to produce the first and/or the additional film 4, 5, individual films made from the respective materials can be used, which are connected to one another.

The reinforcement layer(s) 14, 15 that may be present preferably includes/comprise or consists/consist of a fiber reinforcement, which is preferably designed as a separate layer. The fiber reinforcement can be formed from fibers and/or threads selected from a group comprising or consisting of glass fibers, aramid fibers, carbon fibers, mineral fibers such as basalt fibers, natural fibers such as hemp, sisal, and combinations thereof.

Glass fibers are preferably used as the fiber reinforcement layer. The proportion of fibers, in particular glass fibers, in the fiber reinforcement can be at least 80% by weight, in particular at least 90% by weight. The fibers and/or threads of the fiber reinforcement preferably consist exclusively of glass fibers.

The fibers and/or threads can be present in the fiber reinforcement as a scrim, for example as a fleece. However, a woven or knitted fabric made from the fibers and/or threads is preferred. It is also possible for the woven or knitted fabric to be present only in certain areas and for the remaining areas of the fiber reinforcement to be formed by a scrim.

It is also possible for rubberized fibers and/or threads to be used as or for the fiber reinforcement.

When using a fabric, different types of weave are possible, in particular plain weave, twill or atlas weave. A plain weave is preferably used.

However, it is also possible to use an open-meshed glass fabric or glass scrim.

A coated paper can also be used as fiber reinforcement. The coating makes the paper liquid-resistant.

Alternatively or in addition to the fiber reinforcement, the reinforcement layer(s) 14, 15 can have a mineral filling. Calcium carbonate, talc, quartz, wollastonite, kaolin or mica, for example, can be used as the mineral filling (mineral filler).

The metal layer is formed in particular from aluminum or consists of it. However, other metals can also be used, such as copper or silver.

The metal layer can have a layer thickness between 5 μm and 200 μm, in particular between 60 μm and 200 μm.

The plastic layers 8, 9, 11, 12 can have a layer thickness of between 10 μm and 200 μm.

The layer thickness of the reinforcing layer(s) 14, 15 can be between 5 μm and 50 μm.

Although the foils 4, 9 can in principle be used in the form of the individual foils for the production of the device 2, so that the foil laminate(s) is/are only formed in the course of the production of the device 2, it is advantageous if the foils 4, 9 can be used as a (laminated) semi-finished product.

To connect the individual layers of the laminate or the laminates, they can be glued to one another using adhesives. The adhesives mentioned above are suitable for this. In addition to adhesives, coextrusion and extrusion coating can also be used as connection options. Of course, a combination is also possible in which several plastics are coextruded and adhesively laminated to one another with an extrusion-coated metal or (fiber) reinforcement layer. In general, all known methods for producing composite films or film laminates can be used.

The device 2 has at least one coolant inlet element 16 and at least one coolant outlet element 17 which are flow-connected to the coolant channel 6 . The coolant inlet element 16 and the coolant outlet element 17 are used to supply and remove the coolant to and from the device 2. For this purpose, the coolant inlet element 16 and the coolant outlet element 17 each have a through-channel 18 for the coolant.

Depending on the design of the coolant channel array, more than one coolant inlet element 16 and/or one coolant outlet element 17 can also be arranged.

It is provided that at least one web 19 is arranged in the through-channel 18 of the coolant inlet element 16 and/or in the through-channel 18 of the coolant outlet element 17, as can be seen from FIG 5 and 6 illustrated embodiment variant of the coolant inlet element 16 can be seen.

Only one coolant inlet element 16 is discussed below. However, the explanations relating thereto can also be applied, at least in part, to further or all coolant inlet elements 16 and to the coolant outlet element 17 and optionally further or all coolant outlet elements 17 .

At the in the 5 and 6 illustrated embodiment variant of the coolant inlet element 16, this is formed with a through-channel 18 with a circular cross-sectional area. The web 18 is preferably arranged centrally so that the cross-sectional area is divided into two halves. However, an eccentric arrangement is also possible.

Furthermore, the coolant inlet element 16 does not necessarily have to have a circular cross-sectional area. For example, the through-channel 18 can also be provided with a rectangular, square, generally polygonal, such as a hexagonal, etc. cross-sectional area. To make this clear, in 7 a coolant inlet element 16 with a rectangular cross-sectional area of the through-channel 18 is shown.

It is further preferred that the through-channel 18 maintains the cross-sectional shape over a length 20 of the coolant inlet element 16 in the direction of flow, although its size can change. However, it can also be provided that the shape of the cross-sectional area changes, that is to say, for example, changes from a round to a square or polygonal cross-sectional area shape.

At the in the 5 and 6 illustrated embodiment of the coolant inlet element 16, the web 19 extends over an entire cross-sectional width 21 of the passage 18. This is also the preferred embodiment. However, it can also be provided that the web 19 only extends over a partial area of the cross-sectional width 21, as is the case with the embodiment variant of the coolant inlet element 16 according to FIG 7 is shown. In this specific case, two webs 19 are provided, which extend towards one another from opposite side walls of the through-channel 18 in the direction of its center, but are spaced apart from one another.

The cross-sectional width 21 can be the maximum width of the cross-sectional area of the through-channel 18, for example the diameter of the through-channel 18. If the web 19 is arranged off-center, the cross-sectional width 21 can also be smaller than the maximum width of the cross-sectional area of the through-channel 18. Furthermore, the web 19 can also extend between two directly adjacent side walls of the through-channel 18, as shown in 7 is indicated by dashed lines. In this case, the cross-sectional width 21 is not to be equated with the width of the passage channel 18 . Rather, the cross-sectional width 21 is viewed in the direction of the width extension of the web 19 within the meaning of the invention. The width extension runs perpendicularly to the extension of the web 19 in the direction of the length 20 of the coolant inlet element 16.

According to a further embodiment of the coolant inlet element 16, which is also in the 5 and 6 is shown, it can be provided that the coolant inlet element 16 has a section 22 in which the cross section of the through-channel 18 becomes larger. In the specific embodiment shown, the section 22 is the end area of the coolant inlet element 16 which is connected to the coolant channel 16 of the device 2 . However, this section 22 can also be arranged along the length 20 of the coolant inlet element 16 in the direction of flow and at a distance from the two end regions of the coolant inlet element 16 .

The section 22 can extend from a first diameter or cross-sectional width 21 to a second diameter of the cross-sectional width 21 of the through-channel 18, which is larger than the first diameter. According to a preferred and in the 5 and 6 shown embodiment of the coolant inlet element 16, this section 22 can be funnel-shaped. However, there is also the possibility that the transition from the first diameter to the second diameter of the through-channel 18 takes place abruptly. In this case, the section 22 can have a constant diameter or constant cross-sectional area size. Mixing variants from the two mentioned variants of the change in diameter are also possible.

The section 22 can be arranged immediately after a connection area 23 for a coolant line. The device 2 can be integrated into a coolant circuit via this coolant line. The connection area 23 can be provided for a hose line, for example. For this purpose, the connection area 23 can be designed in the form of a hose nipple, for example.

According to an embodiment variant of the coolant inlet element 6, the web 19 can be arranged in this section 22 with the larger or increasing cross-section or the larger or increasing cross-sectional width 21, in particular exclusively in this area. The web 19 can extend over a partial area or the entire length of the section 22 in the direction of flow. However, there is also the possibility that the web 19 extends beyond the section 22, for example into the connection area 23, as is shown, for example, in FIG 9 is evident. According to a further embodiment variant of the coolant inlet element 16 it can be provided that the at least one web 19 is designed to taper in the direction of flow, as is shown, for example, in FIG 9 is evident. However, the web can also be tapered in section 22 in the direction of flow if section 22 is cylindrical or funnel-shaped, for example, as in FIGS 5 and 6 is trained. Within the scope of the invention, the web 19 can therefore generally be designed to taper in the direction of flow. The reverse configuration is also possible, that is to say that the web 19 tapers against the direction of flow.

The taper itself can be extended to such an extent that the end of the web 19 tapers to a point, as is shown in 9 is shown in dashed lines. Optionally, instead of a point, the end area of the web 19 can be rounded.

However, provision can also be made for the web 19 to be designed, for example, in the shape of a trapezium.

According to another variant, which is exemplified in 8th is shown, it can be provided that at least one transverse web 24 is arranged on the at least one web. According to one embodiment variant, this transverse web 14 can be arranged at an angle 25 to the web 19 which is selected from a range of 20° to 90°, in particular from a range of 45° to 90°. The angular range from 90° to 180° is also considered as a range from 0° to 90° within the meaning of the invention.

At the in 8th shown embodiment, two transverse webs 24 are provided, which are each arranged at an angle 25 of 90 ° to the web 19 and each extend from the web 19 to the side wall of the passage channel 18 so that it is quartered. However, other configurations are also possible, for example that the at least one transverse web 24 is formed at a distance from the side wall of the passage channel 18 . It is also possible to arrange only one transverse web 24 or more than two transverse webs 24, which can optionally also be arranged eccentrically. Furthermore, the at least one transverse web 24 can extend over the entire length 20 of the coolant inlet element 16 or only a partial area thereof. The same applies in general to the at least one web 19 within the scope of the invention, so that it can also extend over the entire length 20 of the coolant inlet element 16 or only a portion thereof, for example the length of section 22 .

In the embodiment variants of the coolant inlet element 16 described so far, the at least one web 19 or the webs 19 and/or the transverse web or webs 24 is/are embodied as planar. How out 10 As can be seen, according to a further embodiment variant of the coolant inlet element 16 it can also be provided that the at least one web 19 is formed with at least one curvature. The concrete in 10 illustrated S-shape of the web 19 should not be understood as limiting. Other, possibly more complex, forms of curvature of the web 19 are also possible.

The explanations regarding the web 19 regarding the curvature can also be applied to the transverse web(s) 24, if appropriate.

The web(s) 19 and/or the transverse web(s) 24 can have a smooth or a rough surface with a defined surface roughness. It is thus possible to further influence the flow behavior of the coolant. For this reason, the web(s) 19 and/or the transverse web(s) 24 can also be provided with a friction-reducing coating. The term “friction-reducing” is understood here in relation to the friction/adhesion of the coolant to the wall of the through-channel 18 .

The web(s) 19 and/or the cross web(s) 24 can have a thickness that is selected from a range of 0.5 mm to 5 mm.

According to another embodiment of the coolant inlet element 16, which is also in the 5 and 6 is shown, it can be provided that at least one spacer 26 is arranged on the end region of the coolant inlet element 16 adjoining the coolant duct or reaching into the coolant duct. In the embodiment variant of the coolant inlet element 16 specifically illustrated, several, in particular six, cylindrical spacers 26 are arranged distributed (uniformly) over the circumference of the coolant inlet element 16 . However, this number is not to be understood as limiting, but only has an exemplary character. It is also possible for only one spacer 26 to be provided in the form of a circular ring. Furthermore, the cylindrical shape is not to be understood as limiting. The spacer(s) 26 can, for example, also be cuboidal or cube-shaped, have the shape of a segment of a circular ring, etc.

As already mentioned, the device 2 is preferably used in a vehicle, in particular a motor vehicle. Only for the sake of completeness is in 11 Such a vehicle 27 with a built-in battery 1 is shown. The battery 1 can be held by at least one holding element, which is not shown in any more detail.

The exemplary embodiments show possible variants of the device 2, whereby it should be noted at this point that the invention is not limited to the specifically illustrated variants of the same, but rather that various combinations of the individual variants are also possible with one another and these possible variations are based on the teaching on technical action present invention lies in the skill of the person skilled in the art working in this technical field.

The scope of protection is determined by the claims. However, the description and drawings should be used to interpret the claims. Individual features or combinations of features from the different exemplary embodiments shown and described can represent independent inventive solutions. The task on which the independent inventive solutions are based can be found in the description.

All information on value ranges in the present description should be understood to include any and all sub-ranges, e.g. the information 1 to 10 should be understood to mean that all sub-ranges, starting from the lower limit 1 and the upper limit 10, are also included , ie all subranges start with a lower limit of 1 or greater and end with an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

Finally, for the sake of order, it should be pointed out that, for a better understanding of the structure of the device 2, it is not necessarily shown to scale.

Reference List

1

battery

2

contraption

3

memory module

4

foil

5

foil

6

coolant channel

7

web

8th

plastic layer

9

plastic layer

10

layer

11

plastic layer

12

plastic layer

13

layer

14

reinforcement layer

15

reinforcement layer

16

coolant inlet element

17

coolant outlet element

18

passageway

19

web

20

length

21

section width

22

section

23

connection area

24

cross bar

25

angle

26

spacers

27

vehicle

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102013216513 A1 [0006]
• AT 520018 A1 [0008]

Claims (11)

Device (2) for cooling or tempering at least one storage module (3) of a rechargeable battery (1), the device (2) having a first single- or multi-layer film (4) and a further single- or multi-layer film (5). which are partially connected to one another to form at least one coolant channel (6) for a cooling fluid, and which has at least one coolant inlet element (16) and at least one coolant outlet element (17), which are flow-connected to the at least one coolant channel (6), the Coolant inlet element (16) and the coolant outlet element (17) each have a passage (18) for the coolant, characterized in that in the passage (18) of the coolant inlet element (16) and/or in the passage (18) of the coolant outlet element (17) at least one web (19) is arranged. Device (2) after claim 1 , characterized in that the at least one web (19) extends over the entire cross-sectional width of the through-channel (18). Device (2) after claim 1 or 2 , characterized in that at least one transverse web (24) is arranged on the at least one web (19). Device (2) after claim 3 , characterized in that the at least one transverse web (24) is arranged at an angle (25) to the web (19) which is selected from a range of 20 ° to 90 °. Device (2) according to one of Claims 1 until 4 , characterized in that the coolant inlet element (16) and/or the coolant outlet element (17) has/have a section (22) in which the cross section of the through-channel (18) becomes larger, and that the at least one web (19) in this Section (22) is arranged with the larger cross section. Device (2) after claim 5 , characterized in that the section (22) with the widening cross section of the through-channel (18) is funnel-shaped. Device (2) according to one of Claims 1 until 6 , characterized in that the at least one web (19) is designed to taper in the direction of flow. Device (2) according to one of Claims 1 until 7 , characterized in that the at least one web (19) is formed with a curvature. Device (2) according to one of Claims 1 until 8th , characterized in that at least one spacer (26) is arranged on the end region of the coolant inlet element (16) and/or the coolant outlet element (17) adjoining the coolant duct (6) or reaching into the coolant duct (6). Rechargeable battery (1) with at least one storage module (3) for electrical energy and at least one device (2) for cooling or temperature control for the at least one storage module (3), characterized in that the device (2) according to one of Claims 1 until 9 is trained. Vehicle (22) with at least one rechargeable battery (1), characterized in that the rechargeable battery (1) according to claim 10 is formed.

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