DE102017208816B3 - Heat transfer element, tempering device and battery housing with at least one heat transfer element - Google Patents

Abstract

The invention relates to a particular plate-shaped heat transfer element for a temperature control device for a vehicle battery, in particular an e-vehicle. Furthermore, the invention relates to a tempering device for a composite of one or more battery modules vehicle battery and a battery case for receiving a composite of one or more battery modules vehicle battery for a vehicle.

Description

Technical area

The invention relates to a particular plate-shaped heat transfer element for a temperature control device for a vehicle battery, in particular an e-vehicle. Furthermore, the invention relates to a tempering device for a composite of one or more battery modules vehicle battery and a battery case for receiving a composite of one or more battery modules vehicle battery for a vehicle.

Technical background

The increasing electrification of vehicles, especially automobiles, and the simultaneous customer desire for a high range of such vehicles require the development of powerful battery concepts. The battery of electric vehicles, in short E-vehicles, is the crucial component for the range of e-vehicles. The battery, which consists of one or more battery modules, is usually placed in a crash-proof designed battery housing and mounted under the floor of an e-vehicle.

The performance of a battery depends on the influences such as charging and driving cycles, time of use, environmental influences and mechanical loads. In the context of these factors, the module temperature, i. H. the temperature of the battery modules a crucial role. The battery loses power when the ambient temperature is too high or the heat generated when charging or discharging the battery can not be dissipated from the battery modules. The battery also loses power when outside temperatures drop too much in winter weather conditions. In this case, the battery modules must be heated to ensure the performance.

Different cooling systems and their arrangement for dissipating heat from the battery modules or from the interior of the arranged in a battery housing battery modules are known from the prior art, s. for example, the German patent application DE 10 2014 202 162 A1 , Important requirements of the temperature control device or heat transfer elements are that this takes up little space, is placed close to the battery modules and is sealed. To ensure tightness and economy, the temperature control device or heat transfer elements must consist of a few components - in this regard, there is room for improvement.

Furthermore, in the German Offenlegungsschriften DE 10 2013 215 358 A1 and DE 10 2013 209 980 A1 discloses generic heat transfer elements for temperature control for vehicle batteries.

Summary of the invention

The object of the invention is to provide a heat transfer element for a temperature control device for a vehicle battery, in particular an e-vehicle, which can be produced economically and from a few parts.

This problem is solved by the features of patent claim 1.

Provided according to the invention is a particular plate-shaped heat transfer element for a temperature control device for a vehicle battery, in particular an e-vehicle, which defines at least one hollow profile-like element having a substantially rectangular cross-section which defines a passageway through a liquid interior, and at least one at an open end of the hollow profile-like Element for closing the hollow profile-like element arranged closing element, wherein in the at least one end element at least one connection for connecting a supply and / or drain line is provided comprises.

The inventors have found that a relatively plate-shaped heat transfer element with an effective heat transfer from a few parts can be produced economically by a relatively simple structure. In the simplest embodiment, the heat transfer element may consist of at least one hollow profile-like element with a substantially rectangular cross-section and a closing element arranged at least on one side for closing the hollow-profile-like element open on both sides. The opposite open side can be closed, for example by appropriate shaping of the material at the end of the hollow profile-like element, for example by squeezing and / or joining, in particular gluing or welding. As a result, only two parts are required for the production of a heat transfer element according to the invention. In order to provide a sufficiently high heat conduction, the hollow profile-like element consists of a metal, preferably of steel, stainless steel or aluminum. Sheets or strips of steel or stainless steel can be mass produced and cost-effective to form a slot profile, the Slot profile then reproducibly tight, the leak test can be carried out easily automated, can be joined by a longitudinal seam by welding or flanging to form a closed hollow profile. The end cross-section, in particular the substantially rectangular cross-section of the hollow profile-like element can already be considered in the course of the shaping to a slot profile or alternatively finally provided in a final step, for example by a defined squeezing, wherein a defined interior space (inner dimension) for passing Liquid must remain. Alternatively, in particular when using aluminum as the material, a hollow profile-like element with a substantially rectangular cross-section can be produced by means of seamless drawing or extrusion. As a result of the manufacturing process, the corners of the rectangular cross section do not necessarily have a right angle, ie r = 0.0 mm, but in the context of the invention, radii in the corners of up to r = 4 mm can also be included. In order to operate lightweight, depending on the embodiment and size of the plate-shaped heat transfer element, the wall thickness of the hollow-profile-like element between 0.1 and 0.4 mm. If steel is used as the material, it can also be provided with an inorganic coating, in particular a metallic corrosion protection coating based on zinc, aluminum or tin. To further save weight, the connecting element made of plastic, preferably made of a plastic injection molded part or an injection molded part made of fiber-reinforced plastic. Plastic injection-molded parts and injection-molded parts made of fiber-reinforced plastic can be mass-produced, cost-effectively and individually manufactured and enable the integration of multiple functions in one component.

According to one embodiment, a channel is formed within the closure element, which fluidly connects the connection with the interior of the hollow profile-like element. Via a first channel, which is connected to the connection for connecting a supply line, liquid is led into the interior of the hollow profile-like element and via a second channel, which is connected to the connection for connecting a drain line, the liquid from the interior of the hollow profile-like element is derived again. The connection, both for the supply and the drain line can be in the form of an opening or a hole, in which the line can be inserted. Inside the opening or the hole inner circumferential seals, z. B. be provided in the form of O-rings and / or a lock for sealing connection of the line. Alternatively, the opening or the hole can also be designed with an internal thread and an outer sealing surface. The design opening / hole has the advantage that it requires a small space, so that several heat transfer elements can be used almost directly next to each other in later use. In an alternative embodiment, the connection for connecting a line can also be designed in the form of a spout, via which the line can be pulled over it. According to this embodiment, it is possible to use lines having a larger cross-sectional area compared to the aforementioned embodiment and, associated therewith, less flow resistance. The connection of the line to a spout could be secured permanently by means of a clamp or a union nut.

According to the invention, the at least one end element has at least one web projecting at right angles from the end element, which is in particular integrally formed with the end element or is connected as a separate component to the end element and protrudes into the hollow profile-like element for deflecting the liquid within the hollow profile-like element. Depending on the design and dimension of the plate-shaped heat transfer element, one or more webs may be arranged within the hollow profile-like element, which or force a deflection of the liquid and thus a substantially complete flow through the interior of the hollow profile-like element, whereby the efficiency of the plate-shaped heat transfer element can be increased. On the web or on the webs structures, such as bulges may be provided, which can in particular even out the flow velocity of the liquid in the entire interior of the hollow profile-like element. The web or the webs are formed integrally with the end element, for example, in a short design of the plate-shaped heat transfer element. Alternatively, in particular with a longer design and dimension, the web or the webs can be designed as additional parts or components and in particular be connected to the end element. To increase the stability of the web is not only dimensioned such that the height of the web substantially corresponds to the clear height of the inner dimension of the hollow profile-like element and thereby rests against the inner wall of the hollow profile-like element, but in addition to the inner wall cohesively, for example glued.

According to a preferred embodiment, at least one of the end elements has a connection surface which can be inserted into the open end of the hollow profile-like element and is adapted to be connected to the hollow profile-like element in a material, positive and / or non-positive manner become. The connection surface is provided by the outside of one in the form of a circumferential collar, which serves in particular for material and positive connection with the hollow profile-like element, wherein preferably the peripheral outer edge of the collar substantially corresponds to the inner dimension of the hollow profile-like element, so that a positive connection with the Inner wall of the hollow profile-like element can be produced and can be ensured by preferably additional application of adhesive on the pad or surfaces in addition to a material connection and a tightness of the connection. Between the circumferential collar, one or more openings and / or one or more holes and / or one or more oblong holes are provided, which are or are fluidly connected to the channel integrated in the terminating element. Depending on the design and dimension of the plate-shaped heat transfer element, the connection surface does not have to extend completely along the termination element, but the collar can also be formed only in sections along the termination element. The connection surface may optionally be designed to be at least partially conical in order to facilitate the assembly or the insertion into the hollow profile-like element.

According to a preferred embodiment, the closing element has a region adjoining the connecting surface, which is adapted to the outer dimension of the hollow profile-like element, wherein the connecting surface and the adjacent region are separated by a shoulder having a height substantially equal to the wall thickness of the hollow profile-like Corresponds to elements. As a result, a plate-shaped heat transfer element is provided which has a uniform height in its longitudinal orientation. Alternatively, the adjacent region of the closure element can also have a greater height compared to the hollow profile-like element, whereby, for example, a connection and / or channel, which are particularly preferably integrated in the adjacent region of the closure element, can be made larger, and thus the flow resistance can be reduced ,

According to a particularly preferred embodiment, in each case a closing element for closing the hollow profile-like element is arranged at both open ends of the hollow profile-like element. Compared to closing the open side by appropriate shaping of the material at the end of the hollow profile-like element, for example by squeezing and / or joining, in particular gluing or welding, the provision of a second closure element can provide a process-assured and substantially dense and maintenance-free plate-shaped heat transfer element become.

According to a further embodiment, the first terminating element has a connection for connecting a supply line and the second terminating element has a connection for connecting a discharge line. Preferably, the two end elements are designed to be identical, which per design and dimension only one geometry must be made, which in turn has a cost-effective effect. It may be advantageous that the channel is performed by the closing element and the inlet and / or the outlet is accessible on both sides. As a result, the inlets or outlets of several heat transfer elements can be connected to one another and the heat transfer elements can be integrated into the (cooling) circuit in parallel. An advantageous variant of the closure element is to allow the connection of a plurality of hollow profile-like elements. On the one hand, a second connection surface can be arranged on the opposite side. On the other hand, several connection surfaces can be arranged one behind the other. As a result, the heat transfer element can cool and / or heat several battery modules and eliminate the expense of connecting a plurality of heat transfer elements. The heat transfer element comprises a plurality of hollow profile-like elements, wherein the termination element has a plurality of connection surfaces in order to be able to connect a plurality of hollow-profile-like elements, the connection surfaces facing and / or are arranged side by side.

According to one embodiment, the closing element provides means for fastening. These can preferably already be integrated in the course of the production of the connection element, for example in the form of through holes for receiving screws, bolts, pins, etc. and / or attachment areas, which are adapted to receive, for example, clips, in particular a mechanical, preferably detachable connection to provide with adjacent parts or components.

According to a further embodiment, the hollow profile-like element in the longitudinal direction at its ends, in particular in the region of the connection with the end elements have a clear height which is greater than that in its central portion. This has the advantage that in the subsequent use on the one hand reduces the amount of liquid in circulation and on the other hand, the flow rate and the associated heat transfer from the hollow profile-like element to the liquid can be improved.

A significant advantage is the modularity of the plate-shaped heat transfer element according to the invention. Due to different designs and dimensions of the plate-shaped heat transfer element different geometries of battery modules can be cooled and / or heated in the later use different geometries of battery modules with the same geometry of the end elements respectively the heat transfer elements. Thus, the dimension of the plate-shaped heat transfer member can be designed precisely for the area occupied by a battery module or a plurality of battery modules. In particular, the hollow profile-like element or at least one of the hollow profile-like elements of the heat transfer element can cover one or more battery modules.

According to a second aspect, the invention relates to a temperature control device for a vehicle battery composed of one or more battery modules, which can be arranged in a battery housing, through the tempering a liquid is passable, comprising one or more heat transfer elements according to at least one of the aforementioned embodiments, through which the liquid for receiving and discharging the heat generated by the battery module (s), a pump for circulating the liquid, a condenser for controlling the temperature of the liquid under heat, a conduit for circulating the liquid containing the pump, the condenser and the heat transfer element (s) fluidly interconnected and in particular forms a closed system. This system has a high cooling capacity, can be flexibly adapted to the available installation space and is maintenance-free. The above list is not to be considered as conclusive, since of course also other elements, components and / or units may be part of the tempering. The tempering device can cool the vehicle battery depending on the (set) operating temperature as well as heat.

According to a third aspect, the invention relates to a battery housing for accommodating a vehicle battery composed of one or more battery modules for a vehicle, comprising a box, which is formed by a frame and a bottom, which provides an interior area for the vehicle battery, a cover for covering the Box, and at least one heat transfer element according to at least one of the aforementioned embodiments. The above list is not to be considered exhaustive, since of course also other elements, components and / or units may be part of the battery case, such. As consoles or other elements for connecting the battery case to the underbody of a vehicle, transverse and / or longitudinal stiffening profiles etc ..

The inventive particular plate-shaped heat transfer element is versatile because of its design, so that in connection with the battery housing or the heat transfer elements under the bottom of the battery case, between the bottom of the battery case and the battery modules or between the battery modules and the lid and / or can be placed over the lid.

list of figures

• 1): ein Ausführungsbeispiel eines Wärmeübertragungselements in perspektivischer Darstellung a) und in b) einen Querschnitt durch B-B in 1a),
• 2): ein Teil des Ausführungsbeispiels gemäß 1 in perspektivischer Darstellung a) und in b) eine perspektivische Darstellung des Teils im Schnitt gemäß Linie A-A in 2a),
• 3): ein weiteres Ausführungsbeispiel eines Wärmeübertragungselements in perspektivischer Darstellung a) und in b) einen Querschnitt durch C-C in 3a),
• 4) ein weiteres Ausführungsbeispiel eines Wärmeübertragungselements in perspektivischer Darstellung,
• 5) ein weiteres Ausführungsbeispiel eines Wärmeübertragungselements in Draufsicht,
• 6): ein Ausführungsbeispiel eines Batteriegehäuses in einer perspektivischen Teilansicht und
• 7): ein Ausführungsbeispiel einer Temperiervorrichtung in einer schematischen Darstellung.

In the following the invention will be explained in more detail with reference to an illustrative drawing. Identical parts are provided with the same reference numerals. It shows:

• 1 ): an embodiment of a heat transfer element in perspective view a) and in b) a cross section through BB in 1a )
• 2 ): a part of the embodiment according to 1 in perspective view a) and in b) is a perspective view of the part in section along the line AA in 2a )
• 3 ): Another embodiment of a heat transfer element in perspective view a) and in b) a cross section through CC in 3a )
• 4 ) a further embodiment of a heat transfer element in a perspective view,
• 5 ) another embodiment of a heat transfer element in plan view,
• 6 ): An embodiment of a battery case in a perspective partial view and
• 7 ): An embodiment of a temperature control in a schematic representation.

Description of the Preferred Embodiments

In 1a ) is an embodiment of a plate-shaped heat transfer element ( 1 ) is shown in a perspective view. The plate-shaped heat transfer element ( 1 ) comprises a hollow profile-like element ( 2 ) having a substantially rectangular cross section ( 1b )), which one of a liquid, in particular cooling liquid durchleitbaren interior ( 2.1 ), and in each case one at both open ends of the hollow profile-like element ( 2 ) for closing the hollow profile-like element ( 2 ) arranged Conclusion element ( 3 . 4 ). The final element ( 3 ) has a connection ( 3.1 ) for connecting a supply and / or discharge line, not shown here. In the 1a ) drawn arrows to symbolize the flow direction of the liquid in the use of the heat transfer element. Dashed line is a bridge ( 5 ) indicating the liquid, in particular cooling liquid within the interior ( 2.1 ) forces a diversion. The hollow profile-like element ( 2 ) consists of a metal, in particular a steel coated with a corrosion protection coating or of a stainless steel or of an aluminum, and has a wall thickness ( d ) between 0.1 and 0.4 mm. The final elements ( 3 . 4 ) consist of a plastic, preferably of a plastic injection molded part or of an injection molded part made of fiber-reinforced plastic.

In 2a ) is a perspective view of the upper end element in this case ( 3 ), which is a right angle from the end element ( 3 ) projecting web ( 5 ), which preferably in one piece with the closing element ( 3 ) is formed and in the hollow profile-like element ( 2 ) for deflecting the liquid within the hollow profile-like element ( 2 ), cf. 1a ). The final element ( 3 ) has a connection surface ( 3.3 ), which in the open end of the hollow profile-like element ( 2 ) is inserted and adapted to the hollow profile-like element ( 2 ) To be material, positively and / or non-positively connected. The connection area ( 3.3 ) may be at least partially conical in order to facilitate assembly in the hollow profile-like element ( 2 ) to facilitate. The connection area ( 3.3 ) is provided by the outside of one in the form of a circumferential collar, in particular for the material and form-fitting connection with the hollow profile-like element ( 2 ), wherein preferably the circumferential outer edge of the collar substantially the inner dimension of the hollow profile-like element ( 2 ), so that a positive connection with the inner wall ( 2.2 ) of the hollow profile-like element ( 2 ) can be produced and by preferably additional adhesive application on the pad ( 3.3 ) or surfaces in addition to a material connection and a tightness of the connection can be ensured. Furthermore, the closing element ( 3 ) one to the pad ( 3.3 ) adjacent area ( 3.2 ), which to the outer dimension ( 2.3 ) of the hollow profile-like element ( 2 ), the pad ( 3.3 ) and the adjacent area ( 3.2 ) by a paragraph ( 3.4 ) are separated. The amount of the paragraph ( 3.4 ) essentially corresponds to the wall thickness ( d ) of the hollow profile-like element ( 2 ) to a plate-shaped heat transfer element ( 1 ) to be provided with a uniform height. Within the final element ( 3 ) is a channel ( 3.5 ), which connects the connection ( 3.1 ) with the interior ( 2.1 ) of the hollow profile-like element ( 2 ) fluidly connects, 2 B ). Via a first channel ( 3.5 ) connected to the port ( 3.1 ) is connected to connect a supply line, liquid in the interior ( 2.1 ) of the hollow profile-like element ( 2 ) and via a second channel ( 3.5 ) connected to the port ( 3.1 ) is connected to connect a drain line, the liquid from the interior ( 2.1 ) of the hollow profile-like element ( 2 ) are derived again. The connection ( 3.1 ), both for the inlet and the drain line is formed in this example in the form of a hole into which a line can be inserted. It is not shown that a circumferential seal in the form of an O-ring is provided inside the hole. Between the circumferential collar are in this example two slots ( 3.6 ), which fluidly with their in the final element ( 3 ), integrated channel ( 3.5 ) are connected.

3a ) shows a further embodiment of a plate-shaped heat transfer element ( 1 ) in perspective view. In contrast to the embodiment in 1a ) are the two final elements ( 3 . 4 ) executed as common parts, which is a cost-effective production to good, each with two spaced-apart webs ( 5 ) in one piece with the closing element ( 3 . 4 ) are formed. The first closing element ( 3 ) has a connection ( 3.1 ) for connecting a feed line and the second terminating element ( 4 ) a connection ( 4.1 ) for connecting a drain line. The arrows are intended to indicate the direction of flow of the liquid in the use of the heat transfer element ( 1 ) symbolize. At the end elements ( 3 . 4 ) means are provided for fastening, in this example the means are in the form of through holes ( 3.7 . 4.2 ) for receiving screws, bolts, pins, etc., to allow a mechanical, preferably releasable connection with adjacent parts or components. To increase the stability of the heat transfer element ( 1 ), the webs, in particular their height are dimensioned so that they are substantially the clear height of the inner dimension of the hollow profile-like element ( 2 ) and thereby to the inner wall ( 2.2 ) of the hollow profile-like element ( 2 ), the webs ( 5 ) preferably in addition to the inner wall ( 2.2 ) are glued, 3b ). The hollow profile-like element ( 2 ) has preferably been converted from a steel plate coated with a zinc coating to a slot profile which has subsequently been tightly sealed along its edges by welding. The weld ( S ) can be particularly coated from the inside with an organic coating to withstand a corrosive attack by the liquid can.

4 ) shows a further embodiment of a plate-shaped heat transfer element ( 1 ) in perspective view. The two final elements ( 3 . 4 ) are designed as identical parts, wherein the first terminating element ( 3 ) a connection ( 3.1 ) for connecting a feed line and the second terminating element ( 4 ) a connection ( 4.1 ) for connecting a drain line. The arrows are intended to indicate the direction of flow of the liquid in the use of the heat transfer element ( 1 ) symbolize.

5 ) shows in a plan view a further embodiment of a particular plate-shaped heat transfer element ( 1 ). In contrast to the other embodiments, this heat transfer element ( 1 ) a plurality of hollow profile-like elements ( 2 ), eight hollow profile-like elements ( 2 ) in the upper area and eight hollow profile-like elements ( 2 ) in the lower part of the plan view, which are shorter in comparison to the upper region in their longitudinal orientation. To connect several hollow profile elements ( 2 ), the terminating element ( 3 ) several pads ( 3.3 ) to form a plurality of hollow profile-like elements ( 2 ) at least at one of its open sides to be able to connect, wherein the connecting surfaces ( 3.3 ) are arranged opposite and side by side. The opposite open sides of the hollow profile-like elements ( 2 ) are represented by the final elements ( 4 ), which are designed as common parts and also several side by side arranged connection surfaces ( 4.3 ), closed. The arrows are intended to indicate the direction of flow of the liquid in the use of the heat transfer element ( 1 ) symbolize. As indicated by the arrows inside the end elements ( 3 . 4 ) are only partially regional channels for fluidly connecting the individual hollow profile-like elements ( 2 ) in the final elements ( 3 . 4 ), in particular in the final elements ( 4 ) between I and II, between III and IV, between V and VI, and between VII and VIII. In the final element ( 3 ), however, channels are between the opening ( 3.1 ) of the inlet and I, between II and III, between IV and V, between VI and VII and between VIII and the opening ( 3.1 ) of the process be integrated.

6 ) shows in a perspective partial view of a battery case ( 30 ) for receiving a z. B. from several battery modules ( 31 ) assembled vehicle battery for a vehicle, comprising a box ( 32 ), which consists of a frame ( 33 ) and a floor ( 34 ) which forms an interior area ( 35 ) provides for the vehicle battery, a lid, not shown here, for covering the box ( 32 ) and at least one heat transfer element ( 1 ). The one or more heat transfer elements ( 1 ) are in this example between the battery module (s) ( 31 ) and lid arranged. Alternatively or additionally, and not shown here, heat transfer elements can also be arranged under the bottom of the battery housing, between the bottom of the battery housing and the battery modules and / or over the lid.

7 ) shows a schematic representation of a temperature control device ( 20 ) for a z. B. from several battery modules ( 1 ) composite vehicle battery, not shown here, which in a battery case, not shown here, can be arranged, by the temperature control device ( 20 ) a liquid is passable, symbolized by the arrow, comprising a plurality of heat transfer elements ( 1 ), through which the liquid for receiving and discharging the heat generated by the battery modules can be transmitted, a pump ( 21 ) for circulating the liquid, a cooler ( 22 ) for controlling the temperature of the heated liquid, a line system ( 23 ) for the circulation of the liquid which fluidly connects the pump, the cooler and the heat transfer element (s) and in particular a closed system ( 24 ). The inlet and outlet pipes for connection to the heat transfer elements ( 1 ) are part of the management system ( 23 ). In 7a ), the heat transfer elements are connected in series, in 7b ) they are connected in parallel.

The invention is not limited to the embodiments shown, but it can also heat transfer element in different dimensions. The above features are all combined with each other. The heat transfer elements can be used in addition to the cooling for heating the battery modules to ensure the performance of the vehicle battery. The use of the battery case is particularly preferred in passenger cars, commercial vehicles, trucks, special vehicles, buses, buses, whether with hybrid or pure electric drive.

LIST OF REFERENCE NUMBERS

1

Heat transfer element

2

hollow profile-like element

2.1

inner space

2.2

inner wall

2.3

external dimension

3

termination element

3.1

Opening / hole

3.2

adjacent area

3.3

terminal area

3.4

paragraph

3.5

channel

3.6

Long hole

3.7

Through opening

4

termination element

4.1

Opening / hole

4.2

Through opening

4.3

terminal area

5

web

20

tempering

21

pump

22

cooler

23

line system

24

closed system

30

battery case

31

battery module

32

box

33

frame

34

ground

35

inner space

d

Wall thickness

S

Weld

Claims (16)

Heat transfer element (1) for a temperature control device for a vehicle battery comprising - at least one hollow profile-like element (2) having a substantially rectangular cross-section which defines an interior (2.1) which can be passed through by a liquid, - at least one at an open end of the hollow profile-like element (2 ) for closing the hollow profiled element (2) arranged end element (3), wherein in the at least one end element (3) at least one connection (3.1) is provided for connecting a supply and / or drain line, characterized in that the closure element (3 ) has at least one perpendicularly projecting from the end element web (5), which projects into the hollow profile-like element (2) for deflecting the liquid within the hollow profile-like element (2). Heat transfer element after Claim 1 , characterized in that within the closure element (3) a channel (3.5) is formed, which connects the connection (3.1) with the interior (2.1) of the hollow profile-like element (2) fluidly. Heat transfer element after Claim 1 or 2 , characterized in that the closing element (3) consists of a plastic. Heat transfer element according to one of the preceding claims, characterized in that the hollow profile-like element (2) consists of steel, stainless steel or aluminum. Heat transfer element according to one of the preceding claims, characterized in that the at least one end element (3) has a connection surface (3.3), which in the open end of the hollow profile-like element (2) can be inserted and adapted to the hollow profile-like element (2) fabric - To be connected positively and / or non-positively. Heat transfer element after Claim 5 , characterized in that the terminating element (3) has a region (3.2) which adjoins the connection surface (3.3) and which is adapted to the outer dimension of the hollow profile-like element (2), wherein the connection surface (3.3) and the adjacent region (3.2) are separated by a shoulder (3.4) having a height corresponding to the wall thickness (d) of the hollow profile-like element (2). Heat transfer element according to one of the preceding claims, characterized in that at both open ends of the hollow profile-like element (2) in each case a closing element (3, 4) for closing the hollow profile-like element (2) is arranged. Heat transfer element after Claim 7 , characterized in that the first end element (3) has a connection (3.1) for connecting a supply line and the second end element (4) has a connection (4.1) for connecting a discharge line. Heat transfer element according to one of the preceding claims, characterized in that the closing element (3, 4) provides means for fastening. Heat transfer element according to one of the preceding claims, characterized in that the hollow profile-like element (2) in longitudinal alignment at its ends in the region of the connection with the end elements (3, 4) has a clear height which is greater than that in its central portion. Heat transfer element according to one of the preceding claims, characterized in that the channel (3.5) is performed by the end element (3) and the inlet and / or the outlet is accessible on both sides. Heat transfer element according to one of the preceding claims, characterized in that the end element (3) has a plurality of connection surfaces (3.3) to connect a plurality of hollow profile-like elements (2), wherein the connection surfaces (3.3) are arranged opposite and / or side by side. Heat transfer element according to one of the preceding claims, characterized in that the hollow profile-like element (2) or at least one of the hollow profile-like elements (2) of the heat transfer element (1) can cover one or more battery modules. Tempering device (20) for a vehicle battery composed of one or more battery modules (1), which can be arranged in a battery housing, by the temperature control device (20), a liquid is passable, comprising one or more heat transfer elements (1) designed according to one of the preceding claims, through which the liquid for receiving and removing the heat generated by the battery module (s) can be conducted, a pump (21) for circulating the liquid, a cooler (22) for cooling the heated liquid, - A conduit system (23) for the circulation of the liquid, which fluidly connects the pump, the heat exchanger and the one or more heat transfer elements together. A battery housing (30) for receiving a vehicle battery for a vehicle composed of one or more battery modules (31), comprising - a box (32) formed of a frame (33) and a floor (34) having an interior area (35 ) for the vehicle battery, - a cover for covering the box (32) and - at least one heat transfer element (1) according to one of Claims 1 to 13 , Battery housing after Claim 15 , characterized in that the heat transfer element (s) (1) under the bottom (34) of the battery housing (30), between the bottom (34) of the battery housing (30) and the or the battery modules (31), between the or the battery modules ( 31) and lid and / or are arranged above the lid.

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