Cooling device for cooling individual objects to be cooled

Abstract

The invention relates to a cooling device (1) for cooling a single object to be cooled, in particular a technical component. The cooling device (1) comprises: at least one heat sink body (3, 3'), which comprises a plurality of heat sinks (2, 2'); and at least one main body (4, 4'), which is open at least on one side, in particular when viewed in cross section, and which defines a receiving space (8, 8') designed to receive the at least one heat sink body. The at least one heat sink body comprises at least one fastening element (9, 9') designed to interact with at least one main body-side fastening element (10) so as to establish a fastening structure (11) of the at least one heat sink body (3, 3') received in the receiving space (8, 8') to the main body (4, 4'). The main body (4, 4') comprises at least one fastening element (10) designed to interact with at least one heat sink body-side fastening element (9, 9') so as to establish a fastening structure (11) of the at least one heat sink body (3, 3') received in the receiving space (8, 8') to the main body (4, 4').

Description

Technical Field

[0001] The invention relates to a cooling device for cooling a single object to be cooled, in particular a technical component. Background Art

[0002] Corresponding cooling devices are generally known from the prior art. Here, the cooling device is usually fastened to a separate object and has an enlarged surface area, for example the surface area produced by cooling fins, so that heat energy can be transferred between the cooling device or a separate object to be cooled provided with the cooling device and the ambient air around the cooling device. Summary of the invention

[0003] The object of the invention is to provide a cooling device which can be produced in an especially simple, quick and cost-effective manner.

[0004] This object is achieved by a cooling device according to an embodiment of the invention for cooling a single object to be cooled, in particular a technical component.

[0005] The present invention relates to a cooling device for cooling a single object to be cooled, in particular a technical component, the cooling device comprising at least one heat sink body and at least one main body, the heat sink body comprising a plurality of heat sinks. The cooling device is characterized in that the cooling device comprises at least one main body, the main body is open on at least one side, in particular when viewed from a cross section, and the main body defines a receiving space configured to receive at least one heat sink body, the at least one heat sink body comprises at least one fastening element, which is configured to interact with at least one main body side fastening element to form a fastening structure between at least one heat sink body received in the receiving space and the main body, and the main body comprises at least one fastening element, which is configured to interact with at least one heat sink body side fastening element to form a fastening structure between at least one heat sink body received in the receiving space and the main body. In other words, with this structure, a connection method for a multi-part cooling device is provided, wherein the cooling device can be manufactured in a simple and cost-effective manner. The main body side fastening element can be arranged or formed on the main body. Similarly, the heat sink body side fastening element can be arranged or formed on the heat sink body. In other words, the relevant fastening element can be arranged on the main body and / or the heat sink body as a component element (i.e. as an element made of, for example, a single piece of material). As an alternative, at least one fastening element of the main body and / or the heat sink body can be fastened to the main body and / or the heat sink body as a separate component, in particular so that it cannot be disassembled without being destroyed. The heat sink body can be fastened to the main body directly or indirectly. Preferably, the main body and / or the heat sink body are produced in an extrusion process, in particular in the process of forming an aluminum extruded profile. Here, this can be, for example, an aluminum extruded profile made of aluminum and / or another metal, such as magnesium, copper, etc. Since the cooling device is constructed as a multi-part cooling device by at least one main body and at least one heat sink body, a compact cooling device can be obtained, which has a surface area that is efficiently cooled at the same time. In particular, when the main body and / or at least one heat sink body is formed as an extruded profile, in particular composed of aluminum, the cooling device can still obtain good cooling performance despite any potential manufacturing-related limitations in the geometric configuration of the cooling device due to the extrusion process used. Because the cooling device is constructed in multiple parts, more complex shapes of the multi-part cooling device, in particular complex cross-sectional shapes, can be obtained in a simple manner. Compared to cooling devices produced in one piece in an extrusion process, in the case of cooling devices constructed in multiple parts from at least one extruded profile, more design options are provided for their shape and cross-sectional profile. Here, an optional cross-sectional view of a body open on at least one side can represent an opening on a side surface of the body, the basic shape of the body being prismatic. In particular, the opening or the opening area can also be present in the assembled state and / or in the final assembled state. Preferably, at least one opening on the side surface of the prismatic body extends along its manufacturing axis, wherein the manufacturing axis constitutes the direction of movement during extrusion forming.For example, the prismatic body has the shape of an irregularly shaped prismatic profile, which is formed open or recessed on one side. Here, in an extrusion process, a die can be used which comprises at least one shaped element, in particular a raised element, which in the extrusion process forms an opening in the body which is open at least on one side at least in the region. The longitudinal axis of the cooling device component produced in the extrusion process can be oriented corresponding to the manufacturing axis or parallel thereto and / or can extend at right angles to the manufacturing axis.

[0006] The individual object to be cooled by the cooling device may be an electrical and / or electronic component, in particular a power electronic device. The cooling device may be connected to the individual object so as to be in thermal contact therewith, preferably in thermal contact with its plane. For example, the contact between the cooling device and the individual object may be configured to be in direct contact at least in part. The cooling device may be fastened or connected to the individual object in a form-fitting, material-bonded and / or force-locked manner. Typically, the cooling device may be coupled to a surface of the individual object, which surface corresponds to the contact surface of the cooling device. In summary, a cooling device is obtained that can be manufactured with reduced material complexity, has a compact form, and is also characterized by high cooling performance.

[0007] In a preferred embodiment, the body comprises a plurality of additional fins, which are particularly oriented in parallel and are arranged or formed on the wall of the cooling body defining the receiving space so as to extend into the receiving space. Thus, the body can consist of a first region that primarily ensures the stability of the body itself and another region provided with additional fins. Here, the additional fins of the body mean that, in addition to the plurality of fins of the fin body, the cooling device provides additional fins on the body, in particular, these additional fins are formed integrally with the body or are made of a single piece of material. Because the fins of the body are oriented parallel to each other, a compact arrangement of the fins can be achieved simultaneously with a high surface-to-volume ratio of the cooling device. For example, the body can provide a wall adjacent to the receiving space with a greater wall thickness than the fins. Thus, at least one wall of the body defining the receiving space has a stabilizing function for the cooling device. The wall of the body can be formed to be at least partially closed. In particular, a portion of the wall of the body forming the defining receiving space can be provided as a contact area, in particular for direct contact with a separate object to be cooled. The wall defining the receiving space can usually be provided with through holes or openings in part. Such a through hole or hole in at least one wall portion of the body defining the receiving space may increase the surface area of ​​the cooling device and / or may improve the transfer of thermal energy between the cooling device and, in particular, a liquid or gaseous medium flowing around and / or through the cooling device. The latter effect may be achieved by a targeted flow profile of the medium guided around or through the hole.

[0008] For example, at least one main body-side fastening element can be arranged or formed on at least one fin of the main body. As a result, the fin body is fastened to the main body at least partially via the fins of the main body. The fins of the main body are thus endowed with a dual function, i.e., both a function as a heat exchanger or for transferring thermal energy between the main body and a medium surrounding the main body and a function of fastening the fin body to the main body.

[0009] In another optional configuration, it can be provided that at least one main body-side fastening element is arranged or formed in the region of the free end of at least one heat sink. Thus, for example, the fastening element for attaching the heat sink body to the main body can be formed at least partially at the free tip or free end of the heat sink of the main body.

[0010] At least one heat sink body-side fastening element can be arranged or formed on at least one heat sink of at least one heat sink body. For example, the heat sink body comprises a plurality of heat sinks, which are at least partially connected to each other via a connection region, wherein the connection or fastening between the heat sink body and the main body is achieved by fastening elements arranged on the heat sink, in particular on the free ends of the heat sink.

[0011] Alternatively or additionally, it can be provided that at least one heat sink body-side fastening element is arranged or formed in the region of an end of at least one heat sink of at least one heat sink body, which end is not exposed in the assembled state of the cooling device, in which the at least one heat sink body is received in a receiving space defined on the main body side. Therefore, it can be provided that, in particular in the assembled state, the fastening element of the heat sink body is arranged at the end of the heat sink body close to the main body. For example, the heat sink body is comb-shaped in cross section, and a connection area or a main part is provided according to this shape, and each heat sink (preferably all heat sinks) extends from the connection area or the main part substantially at right angles to one side, in particular one side. In this embodiment, the fastening element of the heat sink body can be arranged on one side of the connection area of ​​the comb-shaped heat sink body opposite to the heat sink. Therefore, in the assembled state of the comb-shaped heat sink body, the heat sink or the free end of the heat sink can extend in a direction away from the connection area. When the assembly state is mentioned in the description, this may include an intermediate assembly state and / or a final assembly state of the multi-part cooling device.

[0012] It can prove to be advantageous if the length ratio of the main body-side heat sink to the heat sink body-side heat sink is in the range of 0.30 to 3.00, preferably in the range of 0.50 to 2.0, particularly preferably in the range of 0.65 to 1.55. Furthermore, it can be provided that the length ratio of the main body-side heat sink to the heat sink body-side heat sink corresponds at least approximately to 1.0. In other words, the length ratio of the main body-side heat sink to the heat sink body-side heat sink can be between 0.95 and 1.05. In particular, a more uniform medium flow through and / or around the heat sink can be achieved when the main body-side heat sink and the heat sink body-side heat sink are formed to be geometrically similar and / or identical or have the same or similar length ratio.

[0013] The cooling device may include a first heat sink body having a plurality of heat sinks and a second heat sink body having a plurality of heat sinks, the first heat sink body including at least one fastening element configured to interact with at least one main body side fastening element to form a fastening structure between the heat sink body received in the receiving space and the main body, and the second heat sink body including at least one fastening element configured to interact with at least one fastening element of the first heat sink body to form a fastening structure between the second heat sink body and the first heat sink body. Thus, a configuration is obtained in which the second heat sink body is at least partially connected to the main body or can be at least partially connected to the main body, and in particular is at least partially connected to the main body only via its fastening structure with the first heat sink body. The second heat sink body can, for example, be supported only by the first heat sink body. Assuming that the first heat sink body is fastened to the main body at this time, this results in the second heat sink body and the main body being fastened only via the first heat sink body. In other words, the second heat sink body is only indirectly connected or fastened to the main body via the first heat sink body. In particular, when at least two heat sink bodies are directly interconnected or placed together, it is advantageous that, in the assembled position, the heat sinks of the first heat sink body and the heat sinks of the second heat sink body are arranged or oriented parallel to each other relative to their respective main extension axis or their respective longitudinal axis. Alternatively, it can also be provided that at least some of the heat sinks of the first heat sink body, in particular all of the heat sinks, are parallel to and offset from the heat sinks of the second heat sink body or are arranged or oriented parallel thereto.

[0014] For example, it can be provided that, in the assembled state of the cooling device, the fins of the main body and the fins of the first fin body are oriented to be flush with each other in the longitudinal direction, in the assembled state, the fin body is received in a receiving space defined on the side of the main body, and / or the fins of the second fin body and the fins of the first fin body are oriented to be flush with each other in the longitudinal direction in a state in which they are fastened to the first fin body as expected. The two groups of fins are oriented to be flush with each other, which means that the longitudinal extension axes of the corresponding fins of the first fin body and the second fin body or the main body and the corresponding fins of at least one fin body are on a common axis or in a common plane. In particular, if the fins of the first and second fin bodies and / or the fins of the main body and at least the first fin body are flush with each other in the assembled state, this can have the advantage of more uniformly arranging the fins in the assembled state or in the use state of the cooling device. A more uniform arrangement of the fins can lead to a more uniform flow state of the medium flowing around and / or through the cooling device, and / or to a uniform heat energy exchange between the cooling device and the medium flowing around and / or through the device.

[0015] Furthermore, it can prove advantageous that at least one heat sink body comprises, in particular when viewed in cross section, a rectangular main portion on which the heat sinks on the heat sink body side are arranged or formed so as to extend, in particular away from the main portion, and that the main body comprises, in particular, a concave or concave-shaped receiving portion arranged for this purpose in the region of a wall defining a receiving space, in which the at least one heat sink body is received in the assembled state of the cooling device in a receiving space defined on the main body side. The receiving portion can form a section of the main body designed for fastening the heat sink body to be received in the receiving space. Here, the receiving portion can, for example, comprise a force-locking and / or form-fitting retaining element, which is designed, for example, in the manner of a clamp connection or a snap-lock connection and ensures that the heat sink body is retained on or in the main body. In order to improve the transfer of thermal energy from the main body to the heat sink body connected to the main body, it can be provided that a thermally conductive paste and / or a thermally conductive element, for example a thermally conductive foil, is at least partially applied or arranged between the main body and the heat sink body. Furthermore, the heat transfer between the main body and the heat sink body connected to the main body can be improved by the heat sink body forming a predominantly (in particular completely) planar contact area with the main body at the receiving portion.

[0016] For example, at least one main body side fastening element and / or at least one fin body side fastening element can be formed as a form-fitting and / or force-locking element, which is configured to form a form-fitting and / or force-locking fastening structure. Typically, at least one fastening element (especially the fin body side and main body side fastening elements for assembly) can be designed so that they are connected in an interference fit manner. Alternatively or additionally, the fin body side and / or main body side fastening elements can also be connected to each other by caulking the fastening elements to each other; here, at least one of the two fastening elements is especially plastically deformable during the connection. Thus, the two fastening elements can be wedged together, for example, so that they are not removable, or they cannot be removed without being destroyed. Alternatively or additionally, a material-bonded connection can be provided between the main body side fastening element and the fin body side fastening element and / or between the first fin body side fastening element and the second fin body side fastening element; in particular, the material-bonded connection can be formed in a welding process and / or bonding process. The examples set out in this document for a force-locking and / or form-fitting connection of two fastening elements may relate to the interconnection of two heat sink bodies and / or the connection of at least one heat sink body to a main body.

[0017] At least one main body-side fastening element can be formed as or at least include a protrusion, which is at least partially radially widened, especially when viewed in cross section, and at least one heat sink body-side fastening element is formed as or at least includes a recess and / or a receptacle for receiving a corresponding protrusion. Alternatively or additionally, at least one heat sink body-side fastening element can be formed as or at least include a protrusion, which is at least partially radially widened, especially when viewed in cross section, and at least one main body-side fastening element is formed as or at least includes a recess for receiving a corresponding protrusion. In the sense of the present invention, a radially widened protrusion "viewed in cross section" means that the protrusion extends transversely to the longitudinal extension of the heat sink, or that the protrusion extends radially from the longitudinal axis of the heat sink, especially perpendicular to the longitudinal axis.

[0018] At least one main body-side fastening element can be oriented and / or configured such that at least one main body-side fastening element and at least one heat sink body-side fastening element interact with each other in an operating direction parallel to the longitudinal extension of the heat sink body-side fins. In other words, the joining direction for joining the main body to at least one heat sink body and / or for joining at least two heat sink bodies can extend parallel to the longitudinal axis of the heat sink body-side fins and / or the main body-side fins, or the components of the cooling device can be configured accordingly. In particular, if the main body-side fastening elements are arranged on the heat sinks of the main body, it can prove to be advantageous if the heat sink body-side fins and the main body-side fins are oriented parallel to the joining direction, in particular additionally parallel to the longitudinal extension of the heat sink body-side fins. Since the fins of the heat sink body and the fins of the main body are oriented parallel to each other, during the joining process, the joining forces can act on the cooling device without causing bending or even buckling of the heat sink.

[0019] At least one heat sink body may include a main part, which is particularly designed to be wavy or meandering, and through which adjacently arranged heat sinks are connected to each other to form the heat sink body. Since the connecting part or main part of the individual heat sinks of the heat sink body extends in such a wavy or meandering manner, a compact form of the heat sink body can be achieved with little material. The main part or connecting part of the heat sink body may also include an insertion chamfer, which has a centering and / or guiding function when the heat sink body and the main part are assembled or joined together. In particular, if during this joining process, multiple protruding parts of a fastening element must be simultaneously joined to corresponding recesses of another fastening element of the connecting accessory as far as possible, it is advantageous that they are joined together with the aid or guidance of corresponding centering and / or insertion chamfers in the area of ​​the main part of the heat sink body.

[0020] Alternatively or additionally, at least one fin body side fastening element can be integrated in the main part. In other words, at least one fin body side fastening element, in particular all fin body side fastening elements, are formed as a component of the fin body or are integrally formed in the main part of the fin body.

[0021] In addition to the cooling device, the invention also relates to a heat sink body comprising a plurality of heat sinks and at least one fastening element, which is configured to be fastened or can be fastened to the fastening element of the cooling device described herein. Furthermore, the invention also relates to an assembly comprising the aforementioned cooling device and a separate object to be cooled, wherein the cooling device is connected or can be connected to the separate object in a planar manner. In order to improve the heat conduction function between the separate object and the cooling device, a heat conducting paste and / or a heat conducting element, such as a heat conducting foil, can be arranged between them.

[0022] According to the invention, a component can also be provided, which comprises a cooling device as described herein, wherein the body can be fastened to at least one first heat sink body and a second heat sink body, the second heat sink body being in particular different from the first heat sink body. Here, a group of a plurality of heat sink bodies can be provided, which can be designed to be different in appropriate positions as required and are received in a receiving space in the body.

[0023] The invention also relates to an assembly comprising a cooling device as described herein, the cooling device comprising a body, wherein the body can be fastened to at least one first heat sink body and a second heat sink body, the second heat sink body being in particular different from the first heat sink body. Thus, the assembly can, for example, comprise two heat sink bodies of different designs, which can be inserted into a receiving space in a body of different designs as required. For example, the second heat sink body is in particular only directly connected to the first heat sink body, and the first heat sink body is in particular only directly connected to the body. Alternatively or additionally, the first and second heat sink bodies can be arranged side by side with each other in the receiving space in the body. That is to say, for example, the first heat sink body is in particular only directly fastened on or in the body, and the second heat sink body is in particular only arranged and fastened on or in the same body. In other words, two heat sink bodies of in particular different designs can be arranged side by side with each other in the receiving space of the body.

[0024] In another advantageous embodiment, the cooling device is constructed modularly so that at least two identical or different heat sink bodies can be received in the receiving space of the main body as required. The at least two heat sink bodies can also be dimensioned and / or formed so that they have a grid dimension relative to each other, so that, for example, one large heat sink body or two small heat sink bodies can be received in the receiving space of the main body as required. Alternatively, the grid dimension can be taken into account in the dimensioning and / or construction of the main body and / or at least two heat sink bodies so that in the assembled state, a first group of identical heat sink bodies has an extension (in particular a longitudinal extension) that corresponds to an integer multiple of the extension (in particular a longitudinal extension) of a second group of identically formed heat sink bodies received in the recess of the main body in the assembled state. The modular construction makes it possible to use different or identical heat sink bodies for assembly in at least two identical or at least two different receiving spaces in the main body.

[0025] Preferably, in this embodiment, no matter whether one large heat sink body or two small heat sink bodies are arranged or formed in the receiving space of the main body, the boundary generated by the heat sink body and directed to the opening is the same.

[0026] All advantages, details, configurations and / or features of the cooling device according to the invention can be transferred or applied to the cooling body according to the invention and to the assembly according to the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The invention is explained in more detail based on the embodiments in the drawings, in which:

[0028] Figure 1 is a schematic diagram of a cooling device according to an embodiment;

[0029] Figure 2 is based on Figure 1 A schematic diagram of details of a cooling device;

[0030] Figure 3 is based on Figure 1 A schematic perspective view of a cooling device;

[0031] Figure 4 is a schematic diagram of a cooling device according to an embodiment;

[0032] Figure 5 is based on Figure 4 A schematic perspective view of a cooling device;

[0033] Figure 6 is a schematic diagram of a cooling device according to an embodiment;

[0034] Figure 7 is based on Figure 6 A schematic diagram of details of a cooling device;

[0035] Figure 8 is a schematic diagram of a cooling device according to an embodiment;

[0036] Fig. 9 is based on Figure 8 A schematic diagram of details of a cooling device;

[0037] Fig.10 is a schematic diagram of a cooling device according to an embodiment. DETAILED DESCRIPTION

[0038] Figure 1 A cooling device 1 is shown for cooling a single object to be cooled (not shown), in particular a technical component (not shown). The cooling device 1 comprises: at least one heat sink body 3, 3', which comprises a plurality of heat sinks 2, 2'; and at least one main body 4, which is open on at least one side, in particular when viewed in cross section. Figure 1 In the embodiment of the present invention, the body 4 comprises a single opening 5 on one side. In other words, the body 4 is U-shaped, wherein the two legs 6, 6' are connected to each other by a connecting portion 7, and the opening 5 is formed on the side of the cooling device 1 opposite to the connecting portion 7. The opening 5 is defined in the region of the free ends of the two legs 6, 6'.

[0039] As an alternative to a single opening 5, the body 4, 4' may also include at least two openings 5, wherein at least one of the legs 6, 6' and / or the connecting portion 7 may at least partially include a hole (not shown). The body 4, 4' defines a receiving space 8, 8', which is configured to receive at least one heat sink body 3, 3'. The receiving space 8, 8' is formed by an internal space in the substantially U-shaped body 4, 4'. At least one heat sink body 3, 3' includes at least one fastening element 9, 9', which is configured to interact with at least one body-side fastening element 10 to form a fastening structure 11 between at least one heat sink body 3, 3' received in the receiving space 8, 8' and the body 4. In addition, the body 4, 4' includes at least one fastening element 10, which is configured to interact with at least one heat sink body side fastening element 9, 9' to form a fastening structure 11 or connection between at least one heat sink body 3, 3' received in the receiving space 8, 8' and the body 4, 4'.

[0040] The body 4, 4' comprises a plurality of, for example at least two, additional cooling fins 12, which are particularly parallel-oriented and arranged or formed on a wall 13 of the body 4, 4' defining the receiving space 8, 8' so as to extend into the receiving space 8, 8'. Figure 1 As shown, the wall 13 is preferably formed by the surface of the connecting part 7 of the U-shaped body 4, 4' facing the receiving space 8, 8'. Alternatively, the wall 13 or the connecting part 7 and / or at least one leg 6, 6' may include holes (not shown) that allow, for example, the medium surrounding the cooling device 1 to pass through.

[0041] For example, at least one main body-side fastening element 10 is arranged or formed on at least one heat sink 3 of the main body 4. In particular, at least one main body-side fastening element 10 can be arranged or formed in the region of the free end 14 of at least one heat sink 12. As shown, it can prove advantageous that at least two, preferably at least half, and particularly preferably all main body-side heat sinks 12 are each provided with a main body-side fastening element 10. Here, all main body-side fastening elements 10 can, for example, be arranged or formed in a common plane. Alternatively or additionally, it can also prove advantageous that at least two, preferably at least half, and particularly preferably all main body-side fastening elements 10 are arranged or formed in a common plane, and that the common plane is oriented parallel to the main extension plane of the main body, the main extension plane of the connecting part and / or the main extension plane of at least one leg 6, 6'.

[0042] At least one fin body side fastening element 9, 9' can be arranged or formed, for example, on at least one fin 2, 2' of at least one fin body 3, 3'. As a result, a compact form of fin body 3, 3' can be obtained which is inserted or attached to the main body 4, 4'. Here, at least one fin body side fastening element 9, 9' can be arranged or formed in the region of an end 15, 15' of at least one fin 2, 2' of at least one fin body 3, 3', which end is not exposed in the assembled state of the cooling device 1, in which the at least one fin body 3, 3' is received in the receiving space 8, 8' defined on the main body side. In other words, the fin body side fastening element 9, 9' is arranged or formed on a particularly distal region of at least one fin 2, 2' of the fin body 3, 3', which region is far from the opening 5 in the assembled state, in particular, far from the opening 5 which allows the medium to pass through the fin body 3, 3' into the receiving space 8, 8' in the main body 4, 4'. In other words, the fin body-side fastening elements 9 , 9 may be arranged on the ends 15 , 15 ′ of the fins 2 , 2 ′ opposite the exposed ends and / or on the ends 15 , 15 ′ of the fins 2 , 2 ′ opposite the ends close to the openings.

[0043] exist Figure 1 In the embodiment shown, it can be provided that the length ratio of the main body side fins 12 to the heat sink body side fins 2, 2' is in the range of 0.30 to 3.00, preferably in the range of 0.50 to 2.0, particularly preferably in the range of 0.65 to 1.55, and most preferably in the range of 0.95 to 1.05. In other words, the heat sinks 2, 2', 12 are designed so that the ratio of the length 16 of the main body side fins 12 to the length 17 of the heat sink body side fins 2, 2' is in the above range. Here, in general, the maximum, minimum and / or average length 16, 17 of the heat sink body side fins 2, 2' and / or the main body side fins 12 (especially averaging using arithmetic mean, mean square and / or averaging through median values) can be taken into account, for example, for calculating the ratio. In the embodiment shown, all heat sink body side fins 2, 2' have the same length 17. All main body side fins 12 also have the same length 16. Thus, in principle, embodiments are possible in which the heat sink body side fins 2, 2' and / or the main body side fins 12 have the same length and thus have a ratio of at least approximately 1.0. In other words, the length ratio of the main body side fins 12 to the heat sink body side fins 2, 2' may be in the range of 1.0 to 1.5 and / or 1.5 to 1.0.

[0044] according to Figure 4, shows a cooling device 1, which includes a first heat sink body 3 with a plurality of heat sinks 2 and a second heat sink body 3' with a plurality of heat sinks 2', the first heat sink body 3 includes at least one fastening element 9, which is configured to interact with at least one main body-side fastening element 10 to form a fastening structure 11 between the heat sink body 3 received in the receiving space 8, 8' and the main body 4, 4', and the second heat sink body 3' includes at least one fastening element 9', which is configured to interact with at least one, especially additional fastening element 19 of the first heat sink body 3 to form a fastening structure 18 or connection between the second heat sink body 3' and the first heat sink body 3. It can be seen that in Figure 4 In the embodiment shown by way of example, the first heat sink body 3 disposed between the main body 4 and the second heat sink body 3' comprises two fastening elements 9, 19, the fastening element 9 being used to connect to the main body-side fastening element 10, and the (additional) fastening element 19 being used to connect to the fastening element 9' arranged on or in the second heat sink body 3'. Here, for example, in the assembled state, the additional fastening element 19 of the first heat sink body 3 close to the second heat sink body 3' and the main body-side fastening element 10 may be designed or configured to be at least of the same kind and / or similar and / or identical. Alternatively or additionally, for example, the fastening element 9 of the first heat sink body 3 close to the main body 4, 4' in the assembled state and the fastening element 9' of the second heat sink body 3' close to the first heat sink body 3 in the assembled state may be designed to be at least of the same kind and / or similar and / or identical. For example, this allows at least two heat sink bodies 3, 3' received in the receiving space 8, 8' in the main body 4, 4' to be formed to be of the same type and / or identical with respect to the fastening elements 9, 9', 19. Specifically, at least two heat sink bodies 3, 3' received in the internal space 8, 8' of the main body 4, 4' in the assembled state can be configured as the same part, that is, at least two heat sink bodies 3, 3' can be engaged with each other, and at least one heat sink body 3, 3' can be engaged to the main body 4, 4', regardless of the assembly order of the corresponding heat sink bodies 3, 3'. In addition, from Figure 4 It can be seen that the second heat sink body 3' is connected to the main body 4 only through its contact or connection 18 with the first heat sink body 3. Therefore, the second heat sink body 3' can be supported only by the first heat sink body 3, that is, the second heat sink body 3' is not directly connected to the main body 4.

[0045] Alternatively or additionally, the main body 4 , 4 ′ and / or the at least one heat sink body 3 , 3 ′ may have a mirror-symmetrical shape, in particular when viewed in cross section.

[0046] In the assembled state of the cooling device 1, the fins 12 of the main body 4, 4' and the fins 2 of the first fin body 3 or the additional fin body 3' can be oriented flush with each other in the longitudinal direction, wherein the fin body 3 is received in the receiving space 8, 8' defined on the main body side, and / or the fins 2' of the second fin body 3' and the fins 2 of the first fin body 3 are oriented flush with each other in the longitudinal direction in a state in which they are fastened to the first fin body 3 as intended; see Figures 1 to 5 In other words, the central longitudinal axis of the main body side heat sink 12 (especially when viewed in cross section) and the central longitudinal axis of the heat sink 2 of the first heat sink body 3 (especially when viewed in cross section) coincide with or lie on a common axis; see Figure 2 In a similar manner, the central longitudinal axis of the fins 2 of the first fin body 3 (especially when viewed in cross section) and the central longitudinal axis of the fins 2' of the second fin body 3' fastened to the first fin body 3 (especially when viewed in cross section) coincide with or are located on a common axis.

[0047] In accordance with Figures 6 to 9 In an exemplary embodiment of the at least one heat sink body 3, 3' can, for example, comprise a main portion 20, 20' which is in particular rectangular when viewed in cross section, on which the heat sink body-side heat sinks 2, 2' are arranged or formed to extend, and the main body 4, 4' comprises a receiving portion 21, 21' which is in particular concave or concave-shaped and is provided for this purpose in the region of the wall 13 defining the receiving space 8, 8', receiving the at least one heat sink body 3, 3' in the assembled state of the device or cooling device 1, wherein the at least one heat sink body 3, 3' is received in the receiving space 8 defined on the main body side. In particular, the main portion 20, 20' of the heat sink body 3, 3' which is rectangular in cross section is arranged or configured so that the heat sink body 3, 3' produced during the extrusion process has a rectangular shape at least transversely to the extruded profile forming the main body, i.e. at least transversely to the movement of the blank through the die. Alternatively or additionally, the heat sink body 3, 3' may have a comb-like shape when viewed in cross section; in this case, the main portion 20, 20' may serve as a connection area for connecting at least two heat sinks 2, 2' to each other within the heat sink body 3, 3'. Figure 6 In the embodiment of the present invention, the main body 20 of the heat sink body 3 can be received or connected in a force-locked and / or form-fitting manner in the receiving part 21 of the main body 4. For this purpose, the main part 20 can be connected to the receiving part 21 by a shrink joint. A form-fitting element can also be provided, which is for example in the form of a latching tab 27, in particular a latching tab 27 or a latching strip extending in the longitudinal extension of the main body 4, 4' and / or the longitudinal extension of the heat sink body 3, 3' and is operatively connected to a corresponding mating latching element 28 or a mating latching strip. According to Figure 8 and Fig. 9 In the embodiment shown, fastening elements 10 operatively connected to corresponding fastening elements 9 of the heat sink body 3 are arranged on the wall 13 of the main body 4 , 4 ′.

[0048] At least one main body-side fastening element 10 and / or at least one heat sink body-side fastening element 9, 9', 19 can be formed as a form-fitting and / or force-locking element, which is configured to form a form-fitting and / or force-locking fastening structure 11, 18. Alternatively or additionally, the interaction of at least one fastening structure 11, 18 or fastening elements 9, 9', 10, 19 can have at least a material-bonded connection component. Alternatively or additionally, in addition to the form-fitting and / or force-locking element, there can also be a material-bonded connection at another contact area of ​​the main body 4, 4' with at least one heat sink body 3 directly in contact therewith, and / or a material-bonded connection at another contact area of ​​two heat sink bodies 3, 3' in contact with each other. It can prove to be advantageous that, at least in the assembled state, a paste (not shown) and / or a foil (not shown) having at least a heat-conducting function, in particular a heat-conducting film and / or a heat-conducting paste, is arranged between the main body-side receiving part 21, 21' and the heat sink body-side main part 20, 20'. In this case, the thermal conductivity function of the paste and / or foil used can at least correspond to a non-negligible effect of the paste or foil, and this is always the case when the thermal conductivity of the paste or foil is sufficiently high.

[0049] At least one body-side fastening element 10 can, for example, be formed as or at least include a protrusion 22, which in particular widens at least partially radially when viewed in a cross section (e.g. a cross section of the body 4, 4') and / or in a longitudinal section of the raised fastening element 10, and at least one heat sink body-side fastening element 9 can be formed as or at least include a recess 23 for receiving a corresponding protrusion 22. Alternatively, at least one heat sink body-side fastening element 9, 9', 19 can be formed as or at least include a protrusion (not shown), which in particular widens at least partially radially when viewed in a cross section (e.g. a cross section of the body 4, 4') and / or in a longitudinal section of the raised fastening element 19, and at least one body-side fastening element 10 can be formed as or at least include a recess for receiving a corresponding protrusion (not shown). In addition to the fastening structure 11 or the connection of the heat sink body 3 to the main body 4, 4', alternatively or additionally, a protrusion 22 received in a recess 23 of the connection fitting can be formed for the fastening structure 18 of the two heat sink bodies 3, 3' or for connecting them to each other. Generally, at least one protrusion 22 can be formed as a means for producing a force-locking connection. In particular, an interference fit and / or a caulking fit can be formed by a corresponding configuration of the protrusion 22 and the recess 23 receiving the protrusion.

[0050] The at least one body-side fastening element 10 may for example be oriented and / or configured such that the at least one body-side fastening element 10 and the at least one fin body-side fastening element 9 ′ interact in an operating direction parallel to the longitudinal extension of the fin body-side fins 2 , 2 ′.

[0051] At least one heat sink body 3, 3' may, for example, comprise a main part 20, 20' or a connection region, which is particularly designed to extend in a wavy manner and through which adjacently arranged heat sinks 2, 2' are connected to one another to form the heat sink body 3, 3'. Alternatively or additionally, the main part 20, 20' or the connection region may have a meandering shape, wherein the heat sink 2, 2' extends only on one longitudinal side, in particular away from the main part 20, 20' or the connection region. Preferably, in the assembled state, the heat sink 2, 2' extends on a side of the main part 20, 20' away from the main body 4, 4' and preferably extends from the main part 20, 20' in a direction pointing away from the main body 4, 4'.

[0052] The main part 20, 20' of the heat sink body 3, 3', in particular at least one recess 23 in the main part 20, 20' of the heat sink body 3, 3', may include at least one insertion chamfer 24 or a centering chamfer. The insertion chamfer 24 or the centering chamfer may in particular make it easier to bring the main body 4, 4' together or join the heat sink body 3, 3' and / or bring two heat sink bodies 3, 3' together to connect to each other, because the insertion chamfer 24 allows at least partially guiding the forward movement towards the final position when bringing the parts together.

[0053] At least one fin body-side fastening element 9, 9' can preferably be integrated in the main part 20, 20', i.e., for example, the fin body-side fastening element 9, 9' can be made of a single piece of material with the main part 20, 20' or can be formed integrally therewith. The fastening element 19 opposite the main part 20, 20' can be made of a single piece of material with the fin body 3, 3' or the fins 2, 2' of the fin body 3, 3' and can therefore be integral therewith.

[0054] The assembly may comprise a cooling device 1 as described herein and a separate object to be cooled (not shown), wherein the cooling device 1 is connected or connectable to the separate object in particular in a planar manner. In particular, the cooling device 1 and the separate object may each comprise a planar area which allows planar contact in the assembled state, so that they allow a good transfer of thermal energy between the cooling device 1 and the separate object.

[0055] For example, a component can also be provided, which comprises a cooling device 1 as described herein, wherein the body 4, 4' can be fastened or connected in particular directly to at least one first heat sink body 3, and preferably directly to at least one additional heat sink body, which is in particular different from or identical to the first heat sink body. It can prove to be advantageous if the heat sink bodies 3, 3' are dimensioned such that the dimensions correspond to the grid dimensions, i.e. the first heat sink body 3 can have a heat sink body length 25, 25" and / or a heat sink body height 26, 26" that is the same or different from a specific integer n times the additional heat sink body. As a result, as Figure 4 The first body 4 shown, for example, only receives two heat sink bodies 3, 3', each of which forms a layer. Fig.10 The second body 4' shown may be formed as follows with respect to the receiving space 8'. Figure 4 The receiving space 8 of the main body 4 shown in FIG. 4 is twice the length of the receiving space 8, and the heat sink body 3, 3' (already in the receiving space 8') can be received in or on the first part of the receiving space 8' (see right side) Figure 4), and two additional heat sink bodies 3, 3' can be received in or on an additional partial space of the receiving space 8' (see the left side), wherein the two additional heat sink bodies 3, 3' can be designed to be the same as the heat sink bodies 3, 3' on the left. In other words, a total of four heat sink bodies 3, 3' can be received in or on the main body 4' or in its receiving space 8', each heat sink body having a consistent heat sink body height 26 and a consistent heat sink body length 25. Therefore, the four heat sink bodies 3, 3' can be provided as the same part. The heat sink bodies 3, 3' arranged in one layer or plane can contact each other at their separation points 29, or can be arranged to be spaced apart from each other. If there is contact between at least two adjacent heat sink bodies 3, 3', the heat energy transfer between the at least two heat sink bodies 3, 3' at the separation point 29 can be promoted. This can improve the performance of the cooling device 1. Alternatively, it can be provided that two heat sinks 3, 3' are arranged or formed on the left side of the receiving space 8' of the main body 4', and a single additional heat sink (not shown) is arranged or formed on the right side, which has a heat sink height 26', which corresponds to a specific integer n times (here twice) the heat sink height 26 of the heat sinks 3, 3'. In particular, the additional heat sink can have a heat sink height 26', which corresponds to the heat sink height 26 of the at least two first heat sinks 3, 3'. Alternatively or additionally, two heat sinks arranged parallel to each other can also be received in the receiving space 8', each heat sink having a heat sink length 25' and a heat sink height 26. Typically, a group of fin bodies 3, 3' can be provided, which can be received in the receiving spaces 8, 8' of the main body 4, 4' according to the size of the main body 4, 4' and / or according to the desired performance of the cooling device 1 (e.g. not all partial spaces in the receiving spaces 8, 8' are "filled" with potentially receivable fin bodies 3, 3', and thus a smaller surface area of ​​the cooling device 1 is obtained). In short, a modular construction can be obtained, which makes it possible to join a plurality of identical or different fin bodies 3, 3' to a plurality of identical or different main bodies 4, 4'.

[0056] The cooling device 1 can have a cuboid shape, which is rectangular when viewed in cross section, wherein in the assembled state, the heat sink body 3, 3' arranged in the receiving space 8, 8' is oriented, arranged and / or dimensioned such that the heat sink body 3, 3' or the heat sinks 2, 2' of the heat sink body 3, 3' do not protrude beyond the cross-sectional rectangular shape. In other words, in the assembled state, the heat sink body 3, 3' is flush with the opening 5 or with the free ends of the legs 6, 6' of the body 4, 4'.

[0057] Reference numerals list

[0058] 1Cooling device

[0059] 2, 2'3, 3' heat sink

[0060] 3, 3' heat sink

[0061] 4,4' Main body

[0062] 5 Opening

[0063] 6, 6' legs

[0064] 7 Connection part

[0065] 8 Receiving Space

[0066] 9, 9'3, 3' fastening elements

[0067] 10 4 fastening elements

[0068] 11 Fastening structure

[0069] 12 4 heat sink

[0070] 13 4 Wall

[0071] 14 12 free end

[0072] 15, 15'2, 2' non-exposed end

[0073] Length of 16 12

[0074] 17 2, 2' length

[0075] 18 Fastening structure

[0076] 19 Fastening elements

[0077] 20, the main part of 20'3

[0078] 21, 21' receiving part

[0079] 22 Protrusion

[0080] 23 recess

[0081] 24 Insert chamfer

[0082] 25, 25' heat sink length

[0083] 26, 26' heat sink height

[0084] 27 Latch tab

[0085] 28 Mating latch element

[0086] 29 separation point.

Claims

1. A cooling device for cooling a single object to be cooled, characterized in that: a first heat sink body, the first heat sink body comprising a plurality of first heat sinks, a second heat sink body, the second heat sink body comprising a plurality of second heat sinks, and at least one body, the body comprising a plurality of body-side fins, the body being open on at least one side when viewed in cross section, and the body defining a receiving space configured to receive the first fin body and the second fin body, in, The first heat sink body includes at least one first heat sink body side fastening element, the first heat sink body side fastening element is configured to interact with at least one main body side fastening element to form a fastening structure between the first heat sink body and the main body, The second heat sink body comprises at least one second heat sink body side fastening element, the second heat sink body side fastening element being configured to interact with the at least one first heat sink body side fastening element to form a fastening structure between the second heat sink body and the first heat sink body, The main body includes at least one main body side fastening element configured to interact with the at least one first heat sink body side fastening element to form a fastening structure between the first heat sink body and the main body, and In the assembled state of the cooling device, the main body side heat sink and the first heat sink are oriented so as to be flush with each other in the longitudinal direction. In the assembled state, the first heat sink body is received in the receiving space defined on the main body side, and / or the second heat sink and the first heat sink are oriented so as to be flush with each other in the longitudinal direction in a state in which a fastening structure is formed between the second heat sink body and the first heat sink body.

2. The cooling device according to claim 1, characterized in that: The main body-side fins are arranged on a wall of the main body defining the receiving space so as to extend into the receiving space.

3. The cooling device according to claim 2, characterized in that: The at least one main body-side fastening element is arranged on at least one main body-side cooling fin of the main body.

4. The cooling device according to claim 3, characterized in that: The at least one body-side fastening element is arranged in the region of a free end of the at least one body-side cooling fin.

5. The cooling device according to any one of claims 1 to 4, characterized in that: The at least one first fin body-side fastening element is arranged on the at least one first fin; and the at least one second fin body-side fastening element is arranged on the at least one second fin.

6. The cooling device according to claim 5, characterized in that: The at least one first fin body-side fastening element is arranged in the region of an end portion of the at least one first fin, the end portion not being exposed in an assembled state of the cooling device, in which the first fin body is received in the receiving space defined on the body side; Furthermore, the at least one second heat sink body side fastening element is arranged in the area of ​​the end of the at least one second heat sink, and the end is not exposed in the assembled state of the cooling device. In the assembled state, the second heat sink body is received in the receiving space defined on the main body side.

7. The cooling device according to any one of claims 2 to 4, characterized in that: A length ratio of the main body side fin to the first fin is in a range of 0.30 to 3.00, and a length ratio of the main body side fin to the second fin is in a range of 0.30 to 3.

00.

8. The cooling device according to any one of claims 2 to 4, characterized in that: A length ratio of the main body side fin to the first fin is in a range of 0.50 to 2.0, and a length ratio of the main body side fin to the second fin is in a range of 0.50 to 2.

0.

9. The cooling device according to any one of claims 2 to 4, characterized in that: A length ratio of the main body side radiating fin to the first radiating fin is in a range of 0.65 to 1.55, and a length ratio of the main body side radiating fin to the second radiating fin is in a range of 0.65 to 1.

55.

10. The cooling device according to any one of claims 2 to 4, characterized in that: A length ratio of the main body side radiating fin to the first radiating fin is in a range of 0.95 to 1.05, and a length ratio of the main body side radiating fin to the second radiating fin is in a range of 0.95 to 1.

05.

11. The cooling device according to claim 1, characterized in that: The first heat sink body includes a first main part, which is rectangular and the first heat sink is arranged to extend on the first main part; the second heat sink body includes a second main part, which is rectangular and the second heat sink is arranged to extend on the second main part; and the main body includes a receiving part arranged in the area of ​​the wall defining the receiving space for this purpose, wherein in the assembled state of the cooling device, the first heat sink body and the second heat sink body are received in the receiving space defined on the main body side.

12. The cooling device according to any one of claims 1 to 4, characterized in that: The at least one main body side fastening element, and / or the at least one first heat sink body side fastening element and the at least one second heat sink body side fastening element are formed as form-fitting and / or force-locking elements configured to form a form-fitting and / or force-locking fastening structure.

13. The cooling device according to claim 12, characterized in that: The at least one main body side fastening element comprises at least a main body side protrusion, which is at least partially radially widened, and the at least one first heat sink body side fastening element comprises at least a heat sink body side recess for receiving a corresponding main body side protrusion, or The at least one first fin body-side fastening element comprises at least a fin body-side protrusion which at least partially widens radially when viewed in cross section, and the at least one main body-side fastening element comprises at least a main body-side recess for receiving a corresponding fin body-side protrusion.

14. The cooling device according to any one of claims 1 to 4, characterized in that: The at least one body-side fastening element is configured such that the at least one body-side fastening element and the at least one first fin body-side fastening element interact with each other in an operating direction parallel to a longitudinal extension of the first fin.

15. The cooling device according to claim 1, characterized in that: The first heat sink body includes a first main portion, and adjacent first heat sinks are connected to each other through the first main portion to form the first heat sink body; and the second heat sink body includes a second main portion, and adjacent second heat sinks are connected to each other through the second main portion to form the second heat sink body.

16. The cooling device according to claim 11 or 15, characterized in that: The at least one first fin body-side fastening element is integrated into the first main portion; and the at least one second fin body-side fastening element is integrated into the second main portion.

17. A cooling assembly comprising a cooling device according to any one of claims 1 to 16 and a separate object to be cooled, wherein the cooling device is connectable to the separate object.

18. A cooling assembly comprising a cooling device according to any one of claims 1 to 16.

19. A cooling device for cooling a single object to be cooled, characterized in that: at least one heat sink body, the heat sink body comprising a plurality of heat sinks, and at least one body, the body being open on at least one side and defining a receiving space configured to receive at least one heat sink body, in, The at least one heat sink body comprises at least one heat sink body side fastening element, the heat sink body side fastening element being configured to interact with at least one main body side fastening element to form a fastening structure between the at least one heat sink body received in the receiving space and the main body, The main body includes at least one main body side fastening element configured to interact with at least one heat sink body side fastening element to form a fastening structure between the at least one heat sink body received in the receiving space and the main body, and In an assembled state of the cooling device, the plurality of fins of the body and the fins of the at least one fin body are oriented so as to be flush with each other in the longitudinal direction, wherein the fin body is received in the receiving space defined on the body side.

20. The cooling device according to claim 1 or 19, wherein the object to be cooled is a technical component.

Images