CN117423926A

CN117423926A - Cooling component and method for producing a cooling component

Info

Publication number: CN117423926A
Application number: CN202310882554.8A
Authority: CN
Inventors: A·海特布林克; G·西韦特
Original assignee: Elwin Quald Systems Technology Co ltd
Current assignee: Elwin Quald Systems Technology Co ltd
Priority date: 2022-07-18
Filing date: 2023-07-18
Publication date: 2024-01-19

Abstract

The invention relates to a cooling component and a method for producing such a cooling component, comprising an in particular elongate cooling body made of metal or metal alloy, by means of which an object can be cooled, and a connecting piece which is connected to the cooling body in a fluid-tight manner, the cooling body having one or more medium channels for the flow of a cooling medium, via which the cooling medium can be introduced into the cooling body and/or via which the cooling medium can be removed from the cooling body. The invention is characterized in that the connecting element is composed of plastic, and in order to connect the connecting element to the cooling body, a first connecting region of the cooling body having a plurality of connecting surfaces each having a three-dimensional nano-microstructure and/or microstructure is introduced into a receiving space of the receiving part of the connecting element and is connected thereto in a fluid-tight manner, in that each connecting surface of the cooling body is respectively opposite to and pressed against an associated connecting surface of the receiving part.

Description

Cooling component and method for producing a cooling component

Technical Field

The invention relates to a cooling element having a particularly elongate, preferably coated, cooling body made of metal or a metal alloy, particularly aluminum, and having a connection piece that is connected to the cooling body in a fluid-tight manner, with which the object can be cooled, the cooling body having one or more preferably parallel, particularly elongate and/or rectilinear, medium channels for the flow of a cooling medium through them, via which connection piece the cooling medium can be introduced into the cooling body and/or via which connection piece the cooling medium can be removed from the cooling body. The invention also relates to a method for manufacturing such a cooling member.

Background

Cooling means for conducting heat away from an object to be cooled are also known as heat exchangers and are used in many technical fields. Such a cooling component is also particularly important when cooling a battery system or an accumulator system for an electric vehicle, but is also particularly important when cooling power electronics components, bus bars or processor chips. The cooling element mentioned above is generally a component of a cooling device for continuously guiding a cooling medium, such as water or the like, through an upper stage of the cooling element.

The cooling body, which is usually placed against the object to be cooled during operation but at least in close proximity to the object to be cooled, is usually made of individual components made of metal or metal alloys (e.g. steel) in such a way that the individual components are welded or soldered to one another in a costly manner. The connection piece for introducing and/or removing the cooling medium, which is connected to the cooling body, is usually made of the same metal or metal alloy as the cooling body and is welded or soldered in the same way as the cooling body. However, because such connectors are not generally used for directly transferring heat from the object to be cooled to the cooling member, it is not actually necessary to manufacture the connector also from a metallic material of high thermal conductivity. This is even functionally counterproductive.

Disclosure of Invention

The object of the invention is to expand the cooling component mentioned in the introduction and to provide a method for producing such an expanded cooling component.

This object is achieved by a cooling element having the features of claim 1 and a method of manufacturing having the features of claim 14.

The cooling component according to the invention is therefore characterized in that the connecting piece is formed from plastic (preferably in the form of a plastic injection molding), and in order to connect the connecting piece to a cooling body, preferably made of aluminum or formed, a first connecting region of the cooling body, in particular at the end, is introduced into the receiving space of the receiving part of the connecting piece and is connected to the latter in a fluid-tight manner, the connecting region having a plurality of connecting surfaces, which each have a three-dimensional nanostructure and/or microstructure, in particular introduced by a physical and/or chemical nanostructure method or a microstructured method. The connecting region of the cooling body is connected to the receiving portion in a fluid-tight manner in that each connecting surface of the cooling body is located opposite one associated connecting surface of the receiving portion and is pressed against the connecting surface (in the case of direct thermal bonding).

According to the invention, the method mentioned at the outset for producing such a cooling component comprises the following measures:

a) By means of a relative movement between the cooling body and the connecting piece, the prefabricated, in particular produced by extrusion, in particular one-piece, or one-piece, connecting region of the cooling body, in particular at the end, is introduced into the receiving space of the prefabricated, in particular injection-molded, receiving portion of the cooling body, so that a plurality of respectively parallel, in particular opposite, respectively in particular by physical and/or chemical, nanostructured or microstructured joining surfaces of the connecting region of the cooling body, each of which faces is opposite to an associated one of the receiving portions of the connecting piece, in particular one of the joining surfaces provided on the inner side of the wall of the receiving portion,

b) In particular before the introduction of the connection region of the cooling body into the receiving space of the receiving portion and/or during the positioning of the connection region in the receiving space, the connection surface of the cooling body is heated, in particular by induction, to a temperature at least corresponding to the melting temperature of the plastic of the connecting piece,

c) In the case of the heat of the connection surfaces of the cooling body melting the connection surfaces of the connecting piece, all the heated connection surfaces of the cooling body are connected in a fluid-tight manner to the respectively opposite connection surfaces of the connecting piece by pressing these opposite connection surfaces.

The use of a connection piece made of plastic according to the invention is on the one hand considerably less costly than the use of a connection piece made of metal or metal alloy, and on the other hand the relatively low thermal conductivity of plastic can be functionally advantageous in this respect, in order to avoid, for example, undesired heat transfer to the cooling medium in the region of the connection piece.

Since the plastic part according to the invention has a receptacle with a receptacle space for the cooling body or for a connection region of the cooling body, a stable and fluid-tight connection is achieved between the metal cooling body (for simplicity, "metal" includes not only metal but also metal alloys in the context of the present application) and the connection part made of plastic by direct thermal bonding in the context of the use of nanostructures and microstructures in particular in the context of a spatially precise production process.

Advantageously, the cooling body can be an elongated, in particular extruded, preferably cuboid, preferably one-piece or one-piece profile body having a plurality of profile body walls forming the outer or outer wall of the profile body. The profile body wall can be, for example, a so-called pocket profile body

For such an external cooling body wall, a large-area first wall and a large-area second wall, which extends at a distance from the first wall, in particular parallel, can thus be provided. Furthermore, two narrow side walls, which are spaced apart from each other and connect the large-area first wall and the large-area second wall to each other, respectively, may be provided.

One, more or all of these cooling body outer walls can be configured flat (or unbent), arched (or curved) or wave-shaped.

In this case, the use of one or more of such curved or corrugated cooling body outer walls can, for example, improve or firstly achieve an abutment with the object to be cooled, which likewise has a curved outer wall, for example with a so-called cell or battery cell.

Furthermore, the cooling body, in particular one, several or each outer cooling body wall, which is composed of metal, can be coated completely or partially on one, several or all outer sides, in particular (if necessary respectively) with an electrically insulating layer. This prevents, for example, short circuits when the cooling body is brought into contact with a non-electrically insulating object to be cooled. The insulating layer or the corresponding electrically insulating layer may be, for example, a (suitable) lacquer layer, a film layer, a powder coating or the like.

As far as the connection surfaces of the cooling body are concerned, these connection surfaces can therefore form the outer (end-located) region of the profile body wall or be arranged in this outer (end-located) region.

Expediently, the receptacle of the connecting element further has a receptacle wall, which delimits a receptacle space, and on the inner side of the receptacle wall a connection surface of the connecting element or of the receptacle is provided, or the inner side of the receptacle wall forms the connection surface of the receptacle.

In a further embodiment of the invention, the connection piece can have an inflow chamber with an inflow opening for introducing the cooling medium into the cooling element.

Preferably, provision can also be made for: the openings or open ends or open sides (in particular open lateral sides) of the first groups of medium channels, via which a cooling medium can be introduced into the inflow space, can be introduced into the cooling element via the inflow openings and the inflow space.

In a further embodiment of the invention, the connection piece can also have an outflow chamber, in particular separated from the inflow chamber, which has an outflow opening for guiding the cooling medium out of the cooling component.

Here, provision can be made for: the outlet chamber is open or has an open end or open side of a (further) second group of medium channels, via which cooling medium can flow from these medium channels, in particular of the second group of medium channels, which are separate from the first group, into the outlet chamber, from where the cooling medium can be led out of the cooling component via the outlet opening.

Furthermore, provision may be made for: the first connecting region is arranged at one end of the cooling body and a second connecting region of the cooling body having a plurality of connecting surfaces is arranged at the other or the other second end of the cooling body, which connecting surfaces each have a three-dimensional nanostructure and/or microstructure introduced, in particular by a physical and/or chemical nanostructure method or a microstructure method, which second connecting region is introduced into the receiving space of the receiving part of the steering cap or into the receiving space of a further connecting piece made of plastic, via which a cooling medium can be introduced into the cooling body and/or via which the cooling medium can be conducted out of the cooling body, and where the second connecting region is connected in a fluid-tight manner to the receiving part of the steering cap or to the receiving part of the further connecting piece, in such a way that each connecting surface of the cooling body is in each case opposite to an associated connecting surface of the receiving part and in direct thermal contact with the connecting surface.

The further connection element can be functionally identical or similar to the previously described (first) connection element. Thus, it is conceivable that: for example, a (first) connection is provided on one end of the cooling body, via which (first) connection the cooling medium is introduced into the cooling element, and on the other end a further or second connection is provided, via which the cooling medium is led out of the cooling element. Different embodiments are conceivable here.

Furthermore, it is also conceivable that: the cooling element has a connection with two or more receiving spaces, which then correspondingly also has a plurality of cooling bodies (one for each receiving space), as described in the present application, and one end of the cooling bodies then each has a first connection region which is then connected in a fluid-tight manner to the assigned receiving space in the manner described in the present application. The respective further second end of the respective cooling body can then each have a second connection region which is connected in the manner described to such a deflector cap and/or to such a further connection piece.

The medium channels of the first and second sets of medium channels may also have open sides or open ends or openings in the region of the other end of the cooling body, which open sides/ends or openings are arranged in or open into the deflection space of the deflection cap. The deflector cap is configured such that the cooling medium flowing from the open sides/ends or openings of the medium channels of the first group of medium channels arranged there or flowing into the deflector chamber is deflected in the deflector chamber to the open sides/ends or openings of the second group of medium channels and can enter the second group of medium channels, then flows through the medium channels of the second group of medium channels and flows further into the outflow chamber via the open sides/ends or openings of these medium channels arranged in the outflow chamber.

Furthermore, the medium channels or all medium channels can be configured in an elongated and rectilinear manner and extend in the cooling body in a side-by-side manner parallel to the main direction of extension of the cooling body.

Preferably, each (elongated) medium channel can be open on two (opposite) lateral sides or ends.

Furthermore, each (elongated) medium channel may be delimited on (all) its longitudinal sides (with respect to the main extension direction of the medium channel) by a medium channel wall. This is achieved in particular by a pair or two pairs of medium channel walls which are arranged opposite one another at a distance from one another, one of the pairs or the pair of medium channel walls being formed by a large-area first wall or a large-area second wall of the cooling element, respectively.

In addition or alternatively, each (elongated) medium channel can also be open on its lateral side (with respect to the main direction of extension of the medium channel), the open lateral side preferably forming an open side arranged in the outflow or inflow or diverting chamber.

It is further preferred that one of the pair of media channel walls or the pair of media channel walls, in particular the other pair of media channel walls, extends parallel to each other and/or perpendicular to the large-area first wall or the large-area second wall.

It is further preferred that the respectively adjacent medium channels share a common medium channel wall of the cooling body on the longitudinal side (laterally).

Furthermore, in the two outer medium channels of the medium channels arranged side by side (in rows), one of the medium channel walls may be formed by one of the narrow side walls of the cooling body.

It is further preferred that the medium channel extends in particular straight between a connecting piece connected to a connecting region at the end and a deflector cap connected to another connecting region at the end.

With the embodiments described above, it is possible, for example, to introduce via the connection, in particular via the inflow opening or the inflow chamber, a cooling medium via the open sides/ends or openings provided in the inflow chamber thereof, which cooling medium then flows through these medium channels, flows out of the other open sides/ends or openings provided in the turn chamber of the first group on the other end of the cooling body and into the turn cap, then turns into the medium channels of the second group via the open sides/ends or openings provided there of the second group of medium channels, then flows (back) into the connection, then flows out of the open sides/ends or openings provided therein into the outflow chamber thereof into the outflow chamber and finally is led out of the connection. On the described path within the cooling body, the cooling medium can absorb waste heat of the object to be cooled (via the outer wall or the outside of the cooling body) and lead the waste heat out.

Furthermore, the main flow direction of the cooling medium may extend within the inflow chamber at an angle, preferably transversely, with respect to the main direction of extension of the medium channels or the main flow direction in the medium channels. In this case, a guide wall, which is preferably integrally connected to the connecting element, in particular to the receptacle of the connecting element, extends at least in sections at an angle to the main flow direction in the inflow chamber (and in particular is at least in sections curved in the direction of the inflow opening), can project into the inflow chamber, in particular for optimizing the flow of the cooling medium from the inflow opening to the medium channel, said guide wall guiding/guiding the cooling medium flowing along or impinging thereon in the direction of the medium channel.

Alternatively or additionally, the main flow direction of the cooling medium can extend within the outflow chamber at an angle, preferably transversely, relative to the medium channel or its main direction of extension or the main flow direction within it (respectively, if appropriate), and a guide wall (also if appropriate) connected in one piece with the connecting piece, in particular with the receptacle of the connecting piece, at least in sections, extending at an angle relative to the main flow direction in the outflow chamber (and in particular at least in sections curved in the direction of the outflow opening) protrudes into the outflow chamber. This is also used in particular to optimize the flow of coolant, of course out of the medium channel towards the outflow opening.

Preferably, the inflow opening may be located on one end of the inflow chamber and the connection opening may be located on the other end, to which connection opening a connection of an identical or similar further cooling element can be connected, in particular for connecting the inflow opening of the further cooling element with the connection opening.

Additionally or alternatively, provision may be made for: the outflow opening is located on one end of the outflow chamber and the connection opening is located on the other end, to which connection opening a connection of a further cooling member of the same or similar type can be connected, in particular for connecting the outflow opening of the further cooling member with the connection opening.

Furthermore, the inflow opening and/or the connection opening may extend in a plane which extends at an angle, preferably transversely, with respect to the main direction of extension within the inflow chamber or with respect to the main direction of extension of the inflow chamber. Additionally and/or alternatively, the outflow opening and/or the connection opening may extend in a plane extending at an angle, preferably transversely, with respect to a main flow direction within the outflow cavity or a main extension direction of the outflow cavity.

In a further embodiment of the invention, it can be provided that: the cooling element has a connecting means, in particular a locking means, for releasably connecting the cooling element to the same further cooling element.

This is in particular such that after such a connection the connection opening of the inflow chamber of the cooling element is aligned with the inflow opening of the inflow chamber of the further cooling element with a flow-through connection between these openings and/or such that after such a connection the connection opening of the outflow chamber of the cooling element is aligned with the discharge opening of the outflow chamber of the further cooling element with a flow-through connection between these openings.

For the production method according to the invention, it can therefore also be provided that: all connection surfaces of the cooling body or only one pair of connection surfaces of the cooling body, in particular one pair of connection surfaces facing each other at a distance from each other, are pressed against the respectively facing connection surfaces of the connecting piece, in that each pressing means presses the respective connection surface of the connecting piece against the respectively facing connection surface of the cooling body.

Furthermore, it can generally be provided that: all connection surfaces of the cooling body or in particular only one pair of opposite connection surfaces of the cooling body are pressed against the respectively opposite connection surfaces of the connecting piece in such a way that the distance between the opposite connection surfaces of the cooling body and the distance between the opposite connection surfaces of the connecting piece are coordinated, so that by heating these connection surfaces of the cooling body, when the connection region of the cooling body is introduced into the receiving space of the connecting piece, a press fit is formed as a result of the thermal expansion of the cooling body material, during which the respective connection surfaces of the cooling body are pressed against the respectively opposite connection surfaces of the connecting piece.

Furthermore, provision may be made for: the connection surfaces of the connection elements, which are respectively opposite to the first wall part or the second wall part of the cooling body, are pressed onto the respectively opposite connection surfaces of the cooling body by corresponding pressing mechanisms, and/or the connection surfaces of the connection elements, which are respectively opposite to the connection surfaces of one narrow side wall of the cooling body, are connected with the corresponding connection surfaces of the cooling body by press fit.

Furthermore, provision may be made for: the connection surfaces of all the walls of the cooling body and the respectively opposite connection surfaces of the connecting piece are connected by pressing the connection surfaces of the connecting piece to the corresponding pressing members of the corresponding wall.

Furthermore, provision may be made for: the respective connection surfaces of the connection elements are pressed by means of respective pressing means against the respectively opposite connection surfaces of the cooling body in that this pressure is applied to the wall of the receiving portion provided with the respective connection surfaces, in particular to the outside of the wall.

Drawings

Other features of the invention are apparent from the appended claims, the following description of the preferred embodiments, and from the accompanying drawings.

In the accompanying drawings:

fig. 1 shows an oblique view from below of an embodiment of a cooling member according to the invention, having a cooling body, a connection (on one end of the cooling body) and a deflector cap (on the other end of the cooling body),

figure 2 shows a bottom view of the cooling member of figure 1,

figure 3 shows a side view of the cooling member of figure 1,

figure 4 shows a (horizontal) longitudinal section through the cooling member of figure 1,

figure 5 shows a cross-sectional view of the connection of the cooling member in figure 1,

Fig. 6 shows a cross-sectional view of the deflector cap of fig. 1.

Detailed Description

In the figures, a cooling member 10 is shown, as it is used, for example, in the context of cooling a battery system or an accumulator system of an electric vehicle in order to cool a respective battery or a single battery cell.

Such a cooling component 10 is generally part of an upper-level cooling device for continuously guiding a cooling medium through the cooling component 10, which absorbs waste heat from the object to be cooled and then discharges the waste heat. For this purpose, the components of the cooling device required for this purpose, such as suitable pumps, inlet and outlet lines for the cooling medium, etc., are known from the prior art and are therefore not explained in detail.

In the present case, the cooling member 10 may be connected in use with a further cooling member of the same cooling device (not shown), which further cooling member may then simultaneously cool a plurality of objects to be cooled, such as a plurality of batteries or battery cells.

The cooling element 10 has a cooling body 11 made of metal, currently aluminum, which in use is placed against the object to be cooled or at least directly adjacent to the object.

The cooling body 11 is of elongate design, currently essentially in the form of a (very) flat cuboid.

With respect to the main extension direction of the cooling member 10 or cooling body 11, a connection 12 is provided at one end of the cooling member or cooling body, via which connection a cooling medium, for example cooling water or the like, can be introduced into the cooling member 10, which cooling medium is then guided within the first set 14a of elongated medium channels 14 in the main extension direction or in the longitudinal direction of the cooling body 11 to the other end of the cooling body 11, is then deflected in a deflector cap 13 provided at the other end of the cooling member 10 or cooling body 11 and flows in the opposite direction through the cooling body 10 in the opposite direction through the second set 14b of elongated medium channels until it in turn reaches the connection 12 and is led out or led out of the cooling member 10 via the connection 12.

In operation of the cooling device or cooling component 10, the cooling medium absorbs waste heat of the object to be cooled and carries the waste heat away on its way through the cooling body 11 or medium channel 14 while cooling the object to be cooled.

The heat sink 11 is currently constructed in one piece. The cooling body can be a profile body or a pocket profile (pocketprofile), which is produced by an (aluminum) extrusion method.

The heat sink 11 currently has four heat sink outer walls 15, namely a large-area first upper wall 15a, a large-area second lower wall 15b facing the upper wall at a distance therefrom in parallel, and two narrow side walls 15c and 15d extending parallel to each other and connecting the upper wall 15a and the lower wall 15b to each other.

The (elongated) medium channel 14 is arranged in the interior of the cooling body 11, i.e. in the interior of the space enclosed by the body outer wall 15. The medium channel 14 extends here parallel to the main direction of extension of the cooling body 11 or parallel to the narrow side walls 15c or 15d. Referring to the cross-sectional view of the cooling body 11, the individual medium channels 14 are arranged side by side in a row.

Furthermore, each (elongated) medium channel 14 is delimited on its (all) longitudinal sides (with respect to the main extension direction of the respective medium channel 14) by a medium channel wall 16. This is achieved in each case in particular by two pairs of medium channel walls 16 which are each arranged opposite one another at a distance.

Each medium channel 14 is delimited on two opposite longitudinal sides (extending perpendicularly or perpendicularly to the large-area upper wall 15a or lower wall 15 b), i.e. in the transverse direction or perpendicularly to the main direction of extension of the cooling body 11, by a first two respective pairs of medium channel walls 16 arranged at a distance from each other, each extending parallel to each other in the main direction of extension of the cooling body.

In this case, one of the two outer medium channels 14.1 or 14.2 of the first pair of medium channel walls 16 is formed by the respective outer wall 15 of the cooling body 11, in each case the narrow side wall 15c or the narrow side wall 15d.

Furthermore, each (elongated) medium channel 14 is delimited on its other two longitudinal sides by a further pair of medium channel walls 16, wherein one medium channel wall 16 of the pair of medium channel walls is formed by a large-area upper wall 15a and the other medium channel wall 16 of the pair of medium channel walls is formed by a large-area lower wall 15 b.

Furthermore, each media channel 14 is currently open on both ends or lateral sides thereof, i.e. on lateral sides 17a and 17 b. In other words, there is no wall, so that the cooling medium can flow into the medium channel 14 or out of the medium channel 14 via the lateral sides 17a and 17 b.

For the connection piece 12, it has an inflow chamber 18 with (upper) inflow openings 19, via which the cooling medium can be introduced into the medium channels 14 of the first group 14a of medium channels 14. For this purpose, the open lateral sides 17a of the medium channels 14 of the first group 14a of medium channels 14 are arranged within the inflow chamber 18, so that the cooling medium can flow directly from the inflow chamber 18 or into the medium channels 14 of the first group 14a via the open lateral sides 17 a.

The connection piece 12 also has an outflow chamber 20, which is separated from the inflow chamber 18 and has an outflow opening 21, via which cooling medium can be led out of the medium channels 14 of the second group 14b of medium channels 14. For this purpose, the open lateral sides 17a of the medium channels 14 of the second group 14b are arranged within the outflow chamber 20, so that the cooling medium can flow directly from the outflow chamber 18 or into the medium channels 14 of the second group 14b via the open lateral sides 17 a.

As can be seen, for example, in fig. 5, in the present case the main extension direction of the medium channel 14 extends perpendicularly to the main extension direction or main flow direction of the inflow chamber 18 or outflow chamber 20, respectively.

However, in order to be able to introduce the cooling medium introduced into the inflow chamber 18 via the inflow opening 19 into the medium channels 14, i.e. the first group 14a of medium channels 14, in an efficient manner, a guide wall 22 is provided in the inflow chamber 18, which is currently connected to the connecting piece 12 in one piece, extends at least in sections at an angle to the main flow direction or main extension direction of the inflow chamber 18 (and in particular is at least in sections curved in the direction of the inflow opening 19).

This coolant channel, starting from its end integrally connected to the connection piece 12, now protrudes completely into the inflow chamber 18 in the direction of the flow inflow opening 19 and serves to divert the coolant impinging thereon (from above in fig. 5) to the first group 14a of coolant channels 14.

In a completely similar manner (not shown), there is also a corresponding guide wall in the outflow chamber 20, which serves there to divert the cooling medium flowing from the second group 14b of medium channels 14 into the outflow chamber 20 in the direction of the outflow opening 21.

Furthermore, the inflow opening 19 is now located on one end of the inflow chamber 18 and the connection opening 33 is located on the other end, to which connection opening a connection of the same further cooling member (not shown) can be connected, in particular for connecting the inflow opening of the further cooling member with the connection opening 33.

The outflow opening 21 is in a similar way located on one end of the outflow chamber 20 and on the other end of the connection opening 34 of the outflow chamber 20, to which the same connection of the further cooling member can be connected, in particular for connecting the outflow opening 21 of the further cooling member with the connection opening 34.

Furthermore, the cooling component 10 or the current connection 12 has a connecting means 35, in particular a locking means, for releasably connecting the cooling component with the same further cooling component. This is in particular such that after connection the connection openings 33 of the inflow chamber 18 are aligned with the inflow openings of the inflow chamber of the further cooling element in a flow-through connection between these openings, or after connection the connection openings 34 of the outflow chamber 20 are aligned with the outflow openings of the outflow chamber of the further cooling element in a flow-through connection between these openings.

Of particular importance now is: unlike the cooling body 11, both the connecting piece 12 and the deflector cap 13 are not composed of metal (or metal alloy if necessary), but are composed of plastic. In this case, these components are currently each constructed in one piece and are constructed as plastic injection molded parts, which are made of thermoplastic, for example.

In a particular manner, the cooling body 11 and the connecting piece 12 or the deflector 13 are each connected fixedly and fluid-tightly to one another.

For connecting the connecting piece 12 to the cooling body 11, the first connecting region 23a of the cooling body 11 at the end is therefore introduced into the receiving space 24 of the (hollow cuboid-shaped) receptacle 25 of the connecting piece 12 (which is currently matched to the substantially cuboid-shaped first connecting region 23a of the cooling body 11, which is substantially cuboid-shaped) and is there connected in a fluid-tight manner to the inner side of the receptacle 25, more precisely to the connecting surface 27 of the receptacle 25 arranged on the inner side.

The metallic heat sink 11 (likewise) has a connection surface, i.e. a connection surface 26 in the first connection region 23 a. Each of these (metallic) connection surfaces 26 of the cooling body 11 has a three-dimensional nanostructure and/or microstructure, respectively, which is introduced into the respective surface by a physical and/or chemical nanostructure or microstructure method (e.g., chemical etching or laser beam structuring).

In the present case, the connection surfaces 26 of the cooling body 11 are arranged in particular on the outside of the external wall 15, in each case in the first connection region 23a, i.e. in the end regions or end sections of the cooling body 11 which are introduced into the receiving space 24 of the receiving space 25 and directly abut/abut against the wall 28 forming the receiving space 25 or directly against the wall 28 forming or bounding the receiving space 24, as already explained.

Each of the connecting surfaces 26 of the cooling body 11 structured in the manner described is in each case opposite an associated one of the connecting surfaces 27 of the receiving portion 25 and is connected thereto, more precisely (in the case of direct thermal bonding), pressed against it, as will be explained in more detail below.

Furthermore, the deflector cap 13 is also connected to the cooling body 11 in a similar manner. For this purpose, the cooling body 11 has a second connection region 23b at its other end located at the deflector cap 13, which likewise has a plurality of connection surfaces 26 and three-dimensional nanostructures and/or microstructures, which are each introduced into the respective surface, in particular by the described physical and/or chemical nanostructure or microstructure method.

Like the connecting piece 12, the deflector cap 13 here likewise has a receptacle 31 which has a receptacle space 30 into which the second connection region 23b of the cooling body 11 is introduced and which is connected in a fluid-tight manner to the receptacle 31 of the deflector cap 13 in a manner similar to that described above for the connection of the cooling body 11 to the receptacle 25 of the connecting piece 12, for the city of bergamot, each connection surface 26 of the cooling body 11 being in each case opposite an associated connection surface of the receptacle 31 and being pressed against this connection surface in the manner described above.

As already explained above, the medium channel 14 also has an open lateral side 17b in the region of the other end of the cooling body 11, which open lateral side 17b is arranged in the deflection chamber 36 of the deflection cap 13. The deflector cap 13 is configured in such a way that the cooling medium flowing from the open lateral side 17b of the first group 14a of medium channels 14 arranged in the other end region into the deflector chamber 36 is deflected in the deflector chamber 36 to the open side 17b of the second group 14b of medium channels 14, enters into the latter and flows back in the opposite direction (in the second group 14b of medium channels) through the cooling body 11 to the connection piece 12.

The specific production of the cooling element 10 and the above-described connection of the metal cooling element 10 to the plastic-made connection 12 and to the plastic-made deflector cap 13 are achieved in a special manner.

First, the cooling body 11, the connection piece 12 and the deflector cap 13 are separately prefabricated.

The members 11, 12, 13 are then connected to each other. This is described below by way of example by means of the connection of the connecting piece 12 to the cooling body 11. The connection of the cooling body 11 to the deflector cap 13 is effected in a similar manner.

To connect the cooling body 11 and the connecting piece 12, the two components are first moved relative to one another. For example, by fixedly holding the connecting piece 12 in place and moving the cooling body 11 in the direction of the connecting piece 12 by means of a suitable conveying mechanism. It goes without saying that the process can also be carried out inversely or the two components can be moved toward each other.

In the region of the above-described relative movement, the cooling body 11 is then moved relative to the connecting piece 12 in such a way that the first connecting region 23a of the cooling body is positioned in the receptacle 25 or the receptacle 24 in a precisely fitting manner in such a way that each connecting surface 26 of the first connecting region 23a of the cooling body 11 is in each case opposite an associated connecting surface 27 of the receptacle 25 of the connecting piece 12.

After, during and/or before this, the metallic heat sink 11, but at least the connection surface 26 of the first connection region 23a of the heat sink 11, is heated or warmed to a temperature at least corresponding to the softening temperature or melting temperature of the plastic of the connecting piece 12 or of the receptacle 25 of the connecting piece 12, in particular by means of induction heating (other heating techniques are of course also conceivable) known from the prior art.

When the first connection region 23a of the cooling body 11 is located in the receptacle 25 in its desired end position, the heat of the cooling body 11 is transferred to the connection piece 12 or its connection surface 27, which then causes the connection surface 27 to melt.

For example, by means of one or, if appropriate, one pressing means, for example a pressing clamp (not shown), which presses from the outside onto the wall 28 of the receptacle 25 to be connected, and then presses or presses the corresponding connecting surface 27 of the receptacle 25, which is to be arranged on the inner side of the corresponding wall 28 of the receptacle 25, onto the corresponding (structured) connecting surface 26 of the cooling body 11 during and/or directly before and/or directly after the melting, and thus connects this connecting surface in a fluid-tight manner (direct thermal bonding).

Furthermore, it can also be provided for one or more surfaces to be connected to: a pair of mutually spaced-apart, opposite connection surfaces 26 of the cooling body 11 are each connected to the corresponding opposite wall by an alternative press fit.

The connecting surfaces 26 of the narrow side walls 15c, 15d or the connecting surfaces 26 provided on the narrow side walls 15c, 15d can be pressed against the connecting surfaces 27 of the walls 28 of the receptacle 25 of the connecting element 12, which are opposite to the connecting surfaces, for example, in that the distance between the connecting surfaces 26 of the narrow side walls 15c, 15d relative to one another and the distance between the opposite connecting surfaces 27 of the connecting element 12 are coordinated or matched in such a way that, when the connecting surfaces 26 are located in the receptacle 24 of the connecting element 12 in their final position or in their respective final position, they thermally expand by heating 6 the connecting surfaces 2 of the cooling body 11 (which is only performed in this position), so that they are pressed/pressed (i.e. without external pressing means) against the respective opposite connecting surfaces 27 of the receptacle 25 or the walls 28 of the receptacle 25 and in this case heat or melt the connecting surfaces 27 of the receptacle 25, so that a respective press fit is formed (after cooling).

For example, it may also be provided that: by means of the respective pressing means, only the connection surface 27 of the receiving portion 25 facing the connection surface 26 of the cooling body 11, which is respectively facing the large-area first wall 15a or the large-area second wall 15b of the cooling body 11, is pressed, and the other connection surface 27 of the receiving portion 25 facing the connection surface 26 of the respective narrow side wall 15c or 15d of the cooling body 11 is connected to the respective connection surface 26 of the cooling body 11 by means of the press fit.

List of reference numerals:

10. the cooling member 19 flows into the opening

11. The cooling body 20 flows out of the cavity

12. Outflow opening of the connecting piece 21

13. Deflector wall of deflector cap 22

14. The medium channel 23a first connection region cooling body

14.1 external Medium channel 23b second connection area Cooling body

14.2 accommodation space for external Medium channel 24 connection

14a receiving portion of the first set of media channel 25 connectors

14b second group of medium channels 26 cooling body connection surfaces

15. Connection surface of outer wall 27 connector housing

15a wall of the large-area first wall 28 receptacle

15b large-area second wall 30 accommodating space steering cap

15c narrow side wall 31 turning cap receiving portion

15d narrow side wall 32 connection surface of the receiving part of the steering cap

16. Connection opening of the medium channel wall 33 into the cavity

17a open lateral side 34 out of the connection opening of the cavity

17b open lateral side 35 connection means

18. Steering chamber of steering cap of inflow chamber 36

Claims

1. Cooling element with a particularly elongated, preferably coated, cooling body (11) made of metal or a metal alloy, particularly aluminum, and a connection (12) connected to the cooling body (11) in a fluid-tight manner, by means of which cooling body the object can be cooled, the cooling body (11) having one or more, preferably parallel, particularly elongated and/or rectilinear, medium channels for the flow of a cooling medium, via which connection the cooling medium can be introduced into the cooling body (11) and/or via which connection the cooling medium can be removed from the cooling body (11), characterized in that the connection (12) is made of plastic, preferably is constructed as a plastic injection molding, in order to connect the connection (12) to the cooling body (11), the cooling body (11) having, in particular at the end, a plurality of first connection areas with three-dimensional nanostructures and/or connection surfaces, respectively introduced by physical and/or chemical nanostructure methods, being arranged in a fluid-tight manner, and each connection area is connected to the cooling body (11) in a fluid-tight manner and is connected to the respective receiving area thereof.

2. The cooling component according to claim 1, characterized in that the cooling body (11) is a preferably elongated, in particular extruded, preferably cuboid, preferably one-piece profile body having a plurality of profile body walls forming an outer wall, in particular a pocket profile body, preferably having a large-area, in particular flat, curved or wavy first wall, a large-area, in particular flat, arched or wavy second wall extending in particular parallel to the first wall at a distance from the first wall, and two, in particular flat, arched or wavy narrow side walls, which are each spaced apart from one another and connect the large-area first wall and the second wall to one another, in particular flat, arched or wavy narrow side walls.

3. A cooling element according to claim 2, characterized in that the connection surface is constituted by and/or provided in an outer (end-located) region of the profile wall.

4. The cooling component according to any one or more of the preceding claims, characterized in that the accommodation has an accommodation wall which delimits the accommodation space and on the inner side of which a connection face of the accommodation is provided and/or the inner side of which constitutes the connection face.

5. The cooling component according to one or more of the preceding claims, characterized in that the connection (12) has an inflow chamber with an inflow opening, in which an opening or an open side, in particular an open lateral side, of a medium channel of a first group of medium channels is provided, via which opening or open side a cooling medium can be introduced into the cooling component via the inflow opening and the inflow chamber, and/or that the connection (12) has an outflow chamber, in particular separated from the inflow chamber, with an outflow opening, in which an opening or an open side, in particular an open lateral side, of a medium channel of a second group of medium channels is provided, via which opening or open side a cooling medium can flow from the second group of medium channels into the outflow chamber, which cooling medium can then be led out of the cooling component via the outflow opening.

6. The cooling component according to one or more of the preceding claims, characterized in that the first connection region and thus the connection piece (12) are arranged at one of the ends of the cooling body (11) and a second connection region of the cooling body (11) having a plurality of connection faces is arranged at the other or further second end, which connection faces each have a three-dimensional nanostructure and/or microstructure, in particular introduced by a physical and/or chemical nanostructure method or a microstructured method, which second connection region is introduced into the accommodation space of a receptacle of a steering cap (13) made of plastic or into the accommodation space of a receptacle of a further connection piece made of plastic, via which further connection piece the cooling medium can be introduced into the cooling body (11) and/or via which further connection piece the cooling medium can be led out of the cooling body (11), and where the connection of the second connection region with the receptacle of the steering cap (13) or the receptacle of a further connection piece is arranged in a fluid tight manner with respect to the respective receptacle face of the cooling body (11).

7. The cooling component according to claim 6, characterized in that the first and second sets of medium channels also have an open side or opening in the region of the other end of the cooling body (11), which open side or opening is provided in a turn-around chamber of the turn-around cap (13), and in that the turn-around cap (13) is configured such that cooling medium flowing or being able to flow into the turn-around chamber from the open side or opening of the medium channels of the first set of medium channels provided in this region of the other end is turned around in the turn-around chamber to the medium channel open side or opening of the second set of medium channels and is able to enter into the open side or opening.

8. The cooling component according to one or more of the preceding claims, at least according to claim 5, characterized in that a main flow direction of the cooling medium extends within the inflow chamber at an angle to the medium channel, preferably transversely to the medium channel, and that a guide wall, which is at least locally curved, in particular in the direction of the inflow opening, extending at an angle to the main flow direction, is connected in particular integrally with the connecting piece (12), in particular with a receiving portion of the connecting piece (12), extends into the inflow chamber, in particular for optimizing the flow of the cooling medium from the inflow opening to the medium channel, and/or that a main flow direction of the cooling medium extends within the outflow chamber (if necessary in each case) at an angle to the medium channel, preferably transversely to the medium channel, and that a guide wall, which is at least locally curved, in particular in the direction of the outflow opening, extends at an angle to the main flow direction, in particular extends from the outflow chamber to the cooling medium channel, in particular for optimizing the flow of the cooling medium from the outflow opening.

9. The cooling member according to any one or more of the preceding claims, at least according to claim 5, characterized in that the inflow opening is located on one end of the inflow chamber and a connection opening is located on the other end, to which connection opening a connection (12) of the same further cooling member can be connected, in particular for connecting the inflow opening of the further cooling member with the connection opening, and/or the outflow opening is located on one end of the outflow chamber and a connection opening is located on the other end, to which connection opening a connection (12) of the same further cooling member can be connected, in particular for connecting the outflow opening of the further cooling member with the connection opening.

10. A cooling member according to any one or more of the preceding claims, at least claim 5, characterized in that the inflow opening and/or the connection opening extend in a plane transverse to the main flow direction within the inflow cavity or transverse to the main extension direction of the inflow cavity and/or the outflow opening and/or the connection opening extend in a plane transverse to the main flow direction within the outflow cavity or transverse to the main extension direction of the outflow cavity.

11. The cooling component according to one or more of the preceding claims, characterized in that it has connection means, in particular locking means, for releasably connecting, in particular connecting, the cooling component with the same further cooling component, such that after connection the connection opening of the inflow chamber is aligned with the inflow opening of the inflow chamber of the further cooling component with a flow-through connection between these openings and/or after connection the connection opening of the outflow chamber is aligned with the outflow opening of the outflow chamber of the further cooling component with a flow-through connection between these openings.

12. The cooling component according to one or more of the preceding claims, characterized in that each (elongated) medium channel is delimited on its (all) longitudinal sides by medium channel walls, in particular by two pairs of medium channel walls which are respectively arranged at a distance from each other, the medium channel walls of one of the pairs being formed by the first wall or the second wall of the cooling component, respectively, of large area and/or being open on its lateral sides, the open lateral sides preferably forming open sides which are arranged in the outflow chamber or the inflow chamber or the diverting chamber.

13. A cooling member according to any one or more of the preceding claims, at least claim 6, characterized in that the further connection has one, more or all of the features of the first connection.

14. Method for producing a cooling component, in particular according to one or more of the preceding claims, having a cooling body (11) made of metal or of a metal alloy, in particular aluminum, and having a connection (12) which is connected to the cooling body (11) in a fluid-tight manner and by means of which the object can be cooled, the cooling body (11) having one or more, preferably parallel, medium channels for the flow of a cooling medium, via which connection the cooling medium can be introduced into the cooling body (11) and/or via which connection the cooling medium can be removed from the cooling body (11), the method having the following measures:

a) By means of a relative movement between the cooling body (11) and the connecting piece (12), a prefabricated, in particular produced by profile extrusion, in particular integrally produced, connecting region of the cooling body (11), in particular at the end, is introduced into a receiving space of a receptacle of a plastic prefabricated, in particular injection molded, connecting piece (12) for the cooling body (11), so that each of a plurality of respectively in particular parallel opposite connection surfaces of the connecting region of the cooling body (11), in particular connection surfaces having three-dimensional nanostructures and/or microstructures introduced in particular by physical and/or chemical nanostructured or microstructured methods, is in each case opposite an associated connection surface of the receptacle of the connecting piece (12), in particular one connection surface provided on the inner wall of the receptacle,

b) In particular before introducing the connection region of the cooling body (11) into the receiving space of the receiving portion and/or during the positioning of the connection region in the receiving space, the connection surface of the cooling body (11) is heated, in particular by induction, to a temperature at least corresponding to the softening temperature or the melting temperature of the plastic of the connecting piece (12),

c) When the heat from the connection surfaces of the cooling body (11) melts the connection surfaces of the connecting piece (12), all the heated connection surfaces of the cooling body (11) are connected in a fluid-tight manner to the respectively opposite connection surfaces of the connecting piece (12) by pressing these opposite connection surfaces.

15. Method according to claim 14, characterized in that all connection surfaces of the cooling body (11) or only one pair of connection surfaces of the cooling body (11), which are in particular arranged at a distance from each other, are pressed against the respectively opposite connection surfaces of the connecting piece (12), in that each pressing means presses the respective connection surface of the connecting piece (12) against the respectively opposite connection surface of the cooling body (11).

16. Method according to claim 14 or 15, characterized in that all connection surfaces of the cooling body (11) or only one pair, in particular the opposite connection surfaces, of the cooling body (11) are pressed against the respectively opposite connection surfaces of the connecting piece (12) in that the distance of the opposite connection surfaces of the cooling body (11) from each other and the distance of the opposite connection surfaces of the connecting piece (12) from each other are coordinated, so that by heating these connection surfaces of the cooling body (11) a press fit is formed as a result of thermal expansion of the cooling body material in the connection region of the cooling body (11) when introduced into the receiving space of the connecting piece (12), during which press fit the respective connection surfaces of the cooling body (11) are pressed against the respectively opposite connection surfaces of the connecting piece (12).

17. Method according to claim 15 or 16, characterized in that the cooling body (11) is a profile body having a large-area first wall, a large-area second wall extending in particular parallel to the first wall at a distance from the first wall, and two narrow side walls connecting the large-area first wall and the second wall to each other at a distance from each other, the connecting surface of the cooling body (11) being the (end-located) region outside these profile walls.

18. Method according to claim 17, characterized in that the connection surfaces of the connection piece (12) which are respectively opposite to the first wall of large area or the second wall of large area are pressed onto the respectively opposite connection surfaces of the cooling body (11) by means of a respective pressing mechanism and/or the connection surfaces of the connection piece (12) which are respectively opposite to the connection surfaces of one of the narrow side walls of the cooling body (11) are connected with the respective connection surfaces of the cooling body (11) by means of a press fit.

19. Method according to claim 18, characterized in that the connection surfaces of all the walls of the cooling body (11) and the respectively opposite connection surfaces of the connecting piece (12) are connected by means of respective pressing means which press the connection surfaces of the connecting piece (12) against the respective walls.

20. Method according to one or more of the preceding claims 14 to 19, characterized in that the respective connection surface of the connection piece (12) is pressed onto the respectively opposite connection surface of the cooling body (11) by means of a respective pressing mechanism in that this pressure is applied to the wall of the receiving portion provided with the respective connection surface, in particular to the outside of this wall.

21. The method according to any one or more of the preceding claims, characterized in that the cooling member has one or more of the features of claims 1 to 13.