Vehicle module with a housing and a cooling device for cooling an electronic device of the vehicle module

Abstract

The invention relates to a vehicle module (1) and a motor vehicle (20) with the vehicle module (1). The vehicle module (1) comprises a housing (2), in which an electronic device (5) is arranged, and a cooling device (6) for cooling the electronic device (5). The cooling device (6) comprises a cooling channel (7) for conducting a cooling fluid. At least one cooling block (8) is inserted into the cooling channel (7), which comprises at least one continuous elongated hole (9). A main direction of extension of the at least one hole (9) goes along a main direction of flow (10) of the cooling fluid.

Description

[0001] 2024PF00334

[0002] 1

[0003] Vehicle module with a housing and a cooling device for cooling an electronic device of the vehicle module

[0004] The invention relates to a vehicle module with a housing in which an electronic device is arranged and a cooling device for cooling the electronic device. The cooling device comprises a cooling channel for guiding a cooling fluid. The invention also relates to a motor vehicle with such a vehicle module.

[0005] A motor vehicle typically comprises at least one vehicle module with an electronic device, such as an electronic control unit (ECU). Particularly in connection with at least partially automated vehicles, there is a high power requirement of the vehicle module, which means that cooling of the electronic device of the vehicle module is becoming increasingly relevant. Passive cooling systems are often not sufficient to cool the vehicle module sufficiently. For this reason, active cooling systems are particularly relevant, in which a cooling fluid, such as a cooling liquid, is guided through a cooling channel of a cooling device in order to quickly and reliably dissipate heat generated by the electronic device.

[0006] CN 117360207 A discloses a heat dissipation cooling device with a base and an air door assembly, the base comprising a cooling cavity for receiving a cooled component and a liquid channel connected to the cooling cavity. The cooling cavity is provided with an opening connected to an outside which can be opened or closed by means of the air door assembly.

[0007] US 2023 / 0292459 A1 discloses an electronic control unit with separable cooling and storage modules. The cooling module has an integrated liquid cooling circuit with a direct connection to a cooling circuit. The cooling module and the storage module touch each other at thermal contact surfaces at which the cooling module can cool the storage module.

[0008] It is the object of the invention to provide a solution by means of which a vehicle module can be cooled with high cooling efficiency.

[0009] The object is solved by the subject matter of the independent claims.

[0010] A first aspect of the invention relates to a vehicle module with a housing in which an electronic device is arranged. The vehicle module also comprises a cooling device for 2024PF00334

[0011] 2 cooling the electronic device. The cooling device comprises a cooling channel for guiding a cooling fluid. The cooling channel guides the cooling fluid. The cooling fluid therefore flows or streams through the cooling channel. The cooling fluid may, for example, be water, a cooling liquid and / or an oil suitable for cooling. Alternatively, the cooling fluid may be air, in particular cooled air, or another gas. The cooling channel may, for example, be at least partially integrated into a housing wall of the housing. For example, a bottom of the cooling channel may be formed by an outer wall of the housing, with this outer wall being opposite an inner wall of the housing, which faces an interior of the housing in which the electronic device is arranged.

[0012] The invention is based at least on the realization that a cooling channel of a cooling device should be designed in such a way that a flow rate of the cooling fluid is sufficient to at least partially dissipate the heat emitted, for example, by the electronic device. However, the amount of heat that may be dissipated by the cooling fluid is limited. In addition, the heat emitted may vary locally, meaning that some section of the cooling channel require more cooling than other sections of the cooling channel. The cooling device should therefore dissipate a high and / or locally increased amount of heat overall.

[0013] At least one cooling block is inserted into the cooling channel. The cooling block is arranged or positioned in the cooling channel. The cooling block is an additional component that is part of the cooling device. By means of the cooling block, a high cooling capacity may be achieved, at least locally in the section of the cooling block, compared to a cooling device without a cooling block. The cooling block is therefore suitable for cooling or at least suitable for contributing to the cooling of the electronic device.

[0014] The cooling block comprises at least one continuous elongated hole. The hole is continuous because it goes from a first side of the cooling block to an opposite second side of the cooling block and connects a section of the cooling channel on the first side to a section of the cooling channel on the second side. A main direction of extension of the at least one hole goes along a main direction of flow of the cooling fluid. The main direction of extension therefore follows or corresponds to the main direction of flow. At least part of the cooling fluid is therefore guided through the hole, meaning streams or flows through the hole. For example, if the cooling block comprises a single continuous elongated hole and the cooling block completely fills the cooling channel when viewed in an upward direction and a transverse direction of the cooling channel, the entire cooling fluid is guided through the hole. The cooling block conducts heat, for example, from at least one wall of the cooling channel adjacent to the cooling block to the walls of the at 2024PF00334

[0015] 3 least one hole in the cooling block and transfers the heat there to the cooling fluid, which transports the heat further through the cooling channel. The cooling block therefore enables heat conduction and thus contributes to heat dissipation, meaning heat transfer from, for example, the electronic device in the housing via the walls of the cooling channel to the cooling block and from the cooling block to the cooling fluid.

[0016] A cross section of the hole perpendicular to the main direction of extension is, for example, round, in particular oval or circular. Alternatively, the cross section may have at least one corner. The cross section may then be square, in particular quadratic or rectangular, for example.

[0017] By inserting the cooling block, for example, a pressure drop along the cooling channel may be increased compared to a cooling channel without a cooling block, for example from 7 millibar to 8 millibar up to 8 millibar to 9 millibar. However, the lower pressure is sufficient to maintain the movement of the cooling fluid in the cooling channel. In addition, the at least one hole locally in the section of the cooling block increases the flow velocity of the cooling fluid compared to a cooling channel without a cooling block. This increases the local heat transport by convection. The vehicle module may therefore be cooled with high cooling efficiency using the cooling device with the cooling block.

[0018] In an embodiment, the cooling block comprises a plurality of holes. These are arranged next to each other when viewed in a transverse direction of the cooling channel. The transverse direction is arranged perpendicular to the main direction of flow of the cooling fluid and to the upward direction of the cooling channel. For example, the plurality of holes may be arranged in a row or a line, which is arranged at a first end adjacent to a first side wall of the cooling channel and at a second end opposite the first end adjacent to a second side wall of the cooling channel opposite the first side wall. The cooling block may, for example, comprise at least two, in particular at least four, holes arranged next to each other. The holes go parallel to each other, for example. A distance between two adjacent holes viewed in the transverse direction is therefore constant, for example, for different points along the main direction of extension. The plurality of holes allow the cooling fluid flow or cooling fluid stream to be distributed over multiple holes, thereby increasing heat dissipation by convection compared to a single hole.

[0019] Another embodiment provides for the cooling block to comprise a plurality of holes that are arranged next to each other when viewed in an upward direction of the cooling channel. The upward direction is arranged perpendicular to the main direction of flow of 2024PF00334

[0020] 4 the cooling fluid and to the transverse direction of the cooling channel. For example, the plurality of holes may be arranged in a row or column, which is arranged at a first end adjacent to a bottom of the cooling channel and at a second end opposite the first end adjacent to a top opposite the bottom or a cover of the cooling channel opposite the bottom. The cooling block may, for example, comprise at least two holes arranged next to each other. The plurality of holes allow the cooling fluid flow or cooling fluid stream to be distributed over multiple holes, thereby increasing heat dissipation by convection compared to a single hole.

[0021] For example, a plurality of holes are possible both in the transverse direction and in the upward direction, so that the cooling fluid may flow through the cooling block at numerous spots. This enables particularly advantageous heat dissipation. The number of holes and / or their arrangement in the transverse and / or upward direction may be specified depending on the cross section of the cooling channel perpendicular to the main direction of flow. The larger the cross section, the more holes may be present, for example.

[0022] An additional embodiment provides that a length of the cooling block, viewed in the main direction of extension of the at least one hole, is smaller than an overall length of the cooling channel. The total length of the cooling channel extends at least from an inlet of the cooling channel to an outlet of the cooling channel. The main direction of extension may alternatively be referred to as the longitudinal direction of the cooling block. The cooling block therefore only extends over part of the cooling channel. The cooling block therefore does not completely fill the cooling channel when viewed in the main direction of expansion of the hole or in the main direction of flow of the cooling fluid. This means that the increased heat removal achieved by the cooling block is limited locally, meaning only in the section of the cooling channel in which the cooling block is arranged. The cooling block may therefore be arranged specifically in a section in which more heat needs to be dissipated than in other sections, without the length of the cooling block having to correspond to the total length of the cooling channel. This reduces the cost of the cooling block, for example, as it does not have to have the total length of the cooling channel.

[0023] Another embodiment provides for the cooling block to be inserted exactly into the cooling channel. This means that the entire cooling fluid is guided through the at least one hole or the plurality of holes. A width of the cooling block viewed in the transverse direction of the cooling channel therefore corresponds to a cooling channel width, meaning a width of the cooling channel. In addition, a height of the cooling block viewed in the upward direction of the cooling channel corresponds to a cooling channel height, meaning a height of the 2024PF00334

[0024] 5 cooling channel. The cooling channel is therefore completely filled by the cooling block in the section in which the cooling block extends. If, for example, the cooling channel is spatially limited by the bottom, the side walls and the top or the cover, the cooling block abuts both the bottom and the side walls as well as the top or the cover of the cooling channel. This ensures that heat is transferred from the walls of the cooling channel to the cooling block at least by heat conduction and is then transferred from the inner walls of the at least one hole to the cooling fluid and then dissipated at least by convection. This achieves a particularly high cooling capacity of the cooling block.

[0025] Alternatively or additionally, it is possible for the cooling block to be placed in the cooling channel with the width of the cooling block being smaller than the cooling channel width and / or the height of the cooling block being smaller than the cooling channel height. In this case, the cooling fluid may be guided through at least one hole and also flow past or stream past the cooling block on at least one side.

[0026] Another embodiment provides for the cooling block to be curved when viewed in the main direction of extension of the at least one hole. The side walls of the curved cooling block have at least one curve, for example. This makes it possible to adapt the cooling block to the geometry of the cooling channel if it has a curved section. For example, the cooling block may be positioned in the curved section of the cooling channel. This enables versatile arrangements of the cooling block in differently shaped cooling channels.

[0027] Furthermore, one embodiment provides for the cooling channel to be U-shaped, at least in some sections. Due to the U-shaped form, it comprises two side channels and a center channel connecting the two side channels. The center channel is typically curved. The curved cooling block is at least partially arranged in the center channel. In the case of the U-shaped cooling channel, the curved cooling block is therefore located in the section in which the cooling channel is curved, meaning in the section in which the two side channels are connected to each other by the center channel. It is possible that the cooling block also extends at least partially over the side channels. The cooling block is therefore designed for frequently provided U-shaped cooling channels.

[0028] Alternatively or additionally, the cooling channel may be s-shaped, at least in some sections. Due to the s-shaped form, it has two side channels and a center channel connecting the two side channels. The curved cooling block is at least partially arranged in the center channel. 2024PF00334

[0029] 6

[0030] Another embodiment provides that the cooling block is arranged at least in a section of the cooling channel that is adjacent to a section of an interior of the housing in which at least one high-performance electronic unit of the electronic device is arranged. In particular, the section of the cooling channel with the cooling block is directly adjacent to the high- performance electronic unit. For example, both the cooling block and the high- performance electronic unit may be adjacent to a bottom of the cooling channel in the section with the cooling block. The high-performance electronic unit is to be understood as a component or part of the electronic device in which a lot of heat occurs compared to other components or parts of the electronic device. The high-performance electronic unit therefore requires particularly strong cooling, during which more heat is dissipated than from other components or parts of the electronic device. In a preferred example, the cooling block is adjacent to the high-performance electronic unit, separated by, for example, the bottom of the cooling channel. The high-performance electronic unit is thus cooled particularly strongly, as the cooling block is arranged in the cooling channel for it.

[0031] If several high-performance electronic units are arranged spatially separated from each other in the housing, several cooling blocks may be provided in the cooling channel, each of which is provided for one or more of the high-performance electronic units and is positioned at least in their vicinity.

[0032] An additional embodiment provides that the thermal conductivity of the cooling block is greater than or at least equal to the thermal conductivity of a material from which the cooling channel walls that spatially limit the cooling channel are made. The cooling channel walls are, for example, the bottom, the side walls and the top or cover of the cooling channel. The cooling channel walls limit the cooling channel in the upward direction and in the transverse direction. For example, the cooling channel walls may be made of a metal that has a lower thermal conductivity than a metal from which the cooling block is made. Alternatively or additionally, the cooling channel walls may be made of a plastic, but the cooling block may be made of a plastic and / or a metal with a greater thermal conductivity compared to the material of the cooling channel walls. This leads to an advantageous heat conduction within the cooling block and thus from the cooling channel walls to the inner walls of the at least one hole.

[0033] According to an additional embodiment, it is intended that the cooling block is made of copper and / or aluminum. Alternatively, the cooling block may be made of a material with a thermal conductivity that essentially corresponds to the thermal conductivity of aluminum or copper. The term "essentially" here includes deviations of up to 1 percent, 2 percent, 3 2024PF00334

[0034] 7 percent, 5 percent, 10 percent, 15 percent or, in particular, 20 percent. Alternatively, the cooling block may be made of an alloy comprising at least aluminum and / or copper. The cooling block is thus made of a material that has a particularly high thermal conductivity compared to other metals or materials. Copper and / or aluminum are therefore particularly suitable to be used for the cooling block in the cooling channel.

[0035] In an additional embodiment, the cooling channel comprises the bottom, the side walls and the cover. The bottom and at least some of the side walls are formed by the housing. The cover is attached to the housing in a fluid-tight manner, in particular to the side walls or to at least parts of the side walls. The cover may be designed as a flat plate, for example. Alternatively, the housing may form a first half-side of the cooling channel, which comprises, for example, the bottom and parts of the side walls, while the cover forms a second half-side that matches the first half and is therefore complementary, comprising the cover and remaining parts of the side walls. In this case, the two half-sides are attached to each other in a fluid-tight manner. The cover may be attached to the housing using friction stir welding or another welding technique, for example. When building the vehicle module, for example, the cooling block may first be inserted with the cover not yet attached in a fluid-tight manner to the housing and then the cooling channel may be closed using the cover. This clarifies the structure of the fluid channel and why no cooling fluid leaks out of it.

[0036] In a further embodiment, a cross section of the cooling channel in an inlet section, which in particular adjoins the inlet of the cooling channel, and / or a cross section of the cooling channel in an outlet section of the cooling channel, which in particular adjoins the outlet of the cooling channel, has a smaller area than the cross section in a center section between the inlet section and the outlet section. The cross section in the inlet section and / or in the outlet section is therefore smaller than the cross section in the center section between the inlet section and the outlet section. This means that, starting from the center section, the cross section of the cooling channel tapers in the direction of the inlet section and / or the outlet section. If the center section is now located in the section of the center channel of the U-shaped cooling channel, for example, the cooling block may be located in this larger section compared to the inlet section and outlet section. This results in particularly large area cooling by means of the cooling block.

[0037] Furthermore, in the U-shaped design, for example, the respective side channel may have at least one side wall that is curved. For example, the curved side wall may form an inner wall of the U-shape, whereas a straight opposite side wall forms an outer wall of the U- 2024PF00334

[0038] 8 shape, or vice versa. Any design of the fluid channel is possible, which may, for example, depend on the design of the housing, the electronic device and / or the module.

[0039] Another embodiment provides for the inlet and outlet of the cooling channel to be formed on a common side surface of the housing. This makes it possible, for example, to create a U-shaped cooling channel. This simplifies the connection of other components of the cooling device, such as a cooling fluid pump.

[0040] Furthermore, an embodiment provides that the electronic device comprises a system-on- a-chip unit. This may be referred to as a system-on-a-chip. The system-on-a-chip unit is typically a highly heat-producing component of an electronic device, for example in a vehicle, so it may require cooling using the cooling block. The high-performance electronic unit of the electronic device may be or comprise the system-on-a-chip unit. Alternatively or additionally, the vehicle module may be an electronic control unit (ECU). The cooling device may therefore be provided for an electronic control unit of a motor vehicle.

[0041] Another aspect of the invention relates to a motor vehicle with a vehicle module as described above. The motor vehicle is, for example, a passenger car, a truck, a bus, a motorcycle and / or a moped.

[0042] The embodiments described in connection with the vehicle module according to the invention, both individually and in combination with one another, apply accordingly, insofar as applicable, to the motor vehicle according to the invention. The invention comprises combinations of the described embodiments.

[0043] The figures show in:

[0044] Fig. 1 a schematic exploded view of a vehicle module; and

[0045] Fig. 2 a schematic representation of a motor vehicle with a vehicle module.

[0046] Fig. 1 shows an exploded view of a vehicle module 1 , which comprises a housing 2. An electronic device 5 is arranged in the housing 2. The housing 2 is here designed in two parts and comprises an upper part 3 and a lower part 4. In an assembled state, the upper part 3 and the lower part 4 form a volume space in which the electronic device 5 is arranged. In addition, the vehicle module 1 comprises a cooling device 6 for cooling the 2024PF00334

[0047] 9 electronic device 5. The cooling device 6 comprises a cooling channel 7 for guiding a cooling fluid. The cooling fluid is, for example, a liquid, in particular water or another cooling liquid. Alternatively or additionally, the cooling fluid may be a gas, for example cooled air.

[0048] At least one cooling block 8 is inserted into the cooling channel 7, which comprises at least one continuous elongated hole 9. A main direction of extension of the at least one hole 9 goes along a main direction of flow 10 of the cooling fluid in the cooling channel 7. The cooling block 8 may have a thermal conductivity that is greater than or at least equal to a thermal conductivity of a material from which cooling channel walls spatially limiting the cooling channel 7 are made. The cooling channel walls are, for example, a bottom, side walls and / or a cover 18 of the cooling channel 7. A material from which the cooling block 8 may be made is, for example, copper and / or aluminum.

[0049] In a preferred example, the cooling block 8 comprises a plurality of holes 9, which are arranged next to each other, for example, when viewed in a transverse direction 11 of the cooling channel 7. Alternatively or additionally, the plurality of holes 9 may be arranged next to each other when viewed in an upward direction 12 of the cooling channel 7. In this case, for example, two holes 9 are arranged next to each other in the upward direction 12 and four holes 9 are arranged next to each other in the transverse direction 11 . The number of holes 9 in the transverse direction 11 and / or in the upward direction 12 is to be understood as purely exemplary. More or fewer holes 9 in the upward direction 12 and / or in the transverse direction 11 are possible, for example depending on a height of the cooling block 8 in the upward direction 12 and / or a width of the cooling block 8 in the transverse direction 11 .

[0050] A length of the cooling block 8, viewed in the main direction of extension of the at least one hole 9, is smaller than a total length of the cooling channel 7. The cooling block 8 thus extends only in a section of the cooling channel 7. The total length of the cooling channel 7 extends from an inlet 13 to an outlet 14 of the cooling channel 7.

[0051] In a preferred example, the cooling channel 7 is inserted exactly into the cooling channel 7. In this case, the entire cooling fluid is guided through the at least one hole 9. This means that the width of the cooling block 8 in the transverse direction 11 and the height of the cooling block 8 in the upward direction 12 correspond to a cooling channel width, 2024PF00334

[0052] 10 meaning a width of the cooling channel 7, or a cooling channel height, meaning a height of the cooling channel 7. This case is sketched here.

[0053] It may be provided that the cooling block 8 is curved when viewed in the main direction of extension of the at least one hole 9. This case is sketched here, as the cooling block 8 is arranged in a curved section of the cooling channel 7. The cooling channel 7 may be at least partially U-shaped, meaning it has two side channels 15 and a center channel 16 connecting the two side channels 15. The curved cooling block 8 is at least partially arranged in the center channel 16, as shown here. The cooling block 8 may alternatively or additionally extend in at least a part of at least one of the side channels 15.

[0054] It may be provided that the cooling block 8 is arranged at least in the section of the cooling channel 7 which is adjacent to a section of an interior of the housing 2 in which a high- performance electronic unit 19 of the electronic device 5 is arranged. This high- performance electronic unit 19 is, for example, a system-on-a-chip unit. The high- performance electronic unit 19 is arranged on a printed circuit board, for example. In general, the electronic device 5 may have at least one system-on-a-chip unit.

[0055] The cooling channel 7 may comprise the cover 18. The bottom and at least parts of the side walls of the cooling channel 7 may be formed by the housing 2. The cover 18 may be attached to the housing 2, in this case to the upper part 3, in a fluid-tight manner. For this purpose, it is arranged at the ends of the side walls facing away from the bottom. The cover 18 may, for example, be welded to the housing 2, in particular by means of friction stir welding. In the example sketched, the cover 18 is designed as a plate, in particular as a flat plate. Alternatively, the cover 18 may form a first half-side, which is complementary to a second half-side formed by the bottom and parts of the side walls of the cooling channel 7. The first half-side then comprises a top of the cooling channel 8 and the remaining parts of the side walls.

[0056] It may be provided that a cross section of the cooling channel 7 is smaller in an inlet section adjacent to the inlet 13 and / or in an outlet section adjacent to the outlet 14 than in a center section. The center section is located between the inlet section and the outlet section. The center section is, for example, the section of the center channel 16. Starting from the center section in the direction of the inlet section and / or the outlet section, the cross section of the cooling channel 7 may be tapered. The cross section is therefore 2024PF00334

[0057] 11 larger in the center section than at the inlet section and / or outlet section. The inlet 13 and the outlet 14 may be formed on a common side surface 17 of the housing 2.

[0058] Fig. 2 shows a motor vehicle 20 with the vehicle module 1 . The vehicle module 1 here is an electronic control unit of the motor vehicle 20.

[0059] Overall, the examples show a fluid-cooled control unit (vehicle module 1) for a motor vehicle 20 with a partially hollow copper and / or aluminum block (cooling block 8). The cooling block 8 made of copper and / or aluminum with a layer of holes 9 is inserted into the cooling channel 7, in which an electronic device 5, in particular a high-performance electronic component (high-performance electronic unit 19), may be located. The cooling block 8 may be placed over the electronic device 5, in particular over the high- performance electronic component (high-performance electronic unit 19), and held in contact with the cooling channel 7 so as to provide a path for heat conduction as heat transfer from the electronic device 5, in particular the high-performance electronic component (high-performance electronic unit 19), to the cooling channel 7. The holes 9 in the cooling block 8 help to increase the flow velocity of the cooling fluid along the entire path in the cooling block 8, thereby improving local convective heat transfer. A combination of heat conduction and convection in the section of the electronic device 5 is therefore improved.

Claims

2024PF0033412Claims1. Vehicle module (1) with a housing (2), in which an electronic device (5) is arranged, and a cooling device (6) for cooling the electronic device (5), wherein the cooling device (6) comprises a cooling channel (7) for guiding a cooling fluid, characterized in that at least one cooling block (8) is inserted into the cooling channel (7) and comprises at least one continuous elongated hole (9), wherein a main direction of extension of the at least one hole (9) goes along a main direction of flow (10) of the cooling fluid.

2. Vehicle module (1 ) according to claim 1 , characterized in that the cooling block (8) comprises a plurality of holes (9) which are arranged next to one another when viewed in a transverse direction (11 ) of the cooling channel (7).

3. Vehicle module (1) according to any one of the preceding claims, characterized in that the cooling block (8) comprises a plurality of holes (9) which are arranged next to one another when viewed in an upward direction (12) of the cooling channel (7).

4. Vehicle module (1) according to any one of the preceding claims, characterized in that a length of the cooling block (8), viewed in the main direction of extension of the at least one hole (9), is smaller than a total length of the cooling channel (7).

5. Vehicle module (1) according to any one of the preceding claims, characterized in that the cooling block (8) is inserted exactly into the cooling channel (7).

6. Vehicle module (1) according to any one of the preceding claims, characterized in that the cooling block (8) is curved when viewed in the main direction of extension of the at least one hole (9).

7. Vehicle module (1) according to any one of the preceding claims, characterized in that the cooling channel (7) is at least partially U-shaped with two side channels (15) and a center channel (16) connecting the two side channels (15), wherein the curved cooling block (8) is arranged at least partially in the center channel (16).2024PF00334138. Vehicle module (1) according to any one of the preceding claims, characterized in that the cooling block (8) is arranged at least in a section of the cooling channel (7) which is adjacent to a section of an interior of the housing (2) in which a high- performance electronic unit (19) of the electronic device (5) is arranged.

9. Vehicle module (1) according to any one of the preceding claims, characterized in that a thermal conductivity of the cooling block (8) is greater than or at least equal to a thermal conductivity of a material from which cooling channel walls spatially limiting the cooling channel (7) are made.

10. Vehicle module (1) according to any one of the preceding claims, characterized in that the cooling block (8) is made of copper and / or aluminum.11 . Vehicle module (1) according to any one of the preceding claims, characterized in that the cooling channel (7) has a bottom, side walls and a cover (18), wherein the bottom and at least a part of the side walls are formed by the housing (2) and the cover (18) is attached to the housing (2) in a fluid-tight manner.

12. Vehicle module (1) according to any one of the preceding claims, characterized in that a cross section of the cooling channel (7) in an inlet section and / or in an outlet section of the cooling channel (7) is smaller than in a center section between the inlet section and the outlet section.

13. Vehicle module (1) according to any one of the preceding claims, characterized in that an inlet (13) and an outlet (14) of the cooling channel (7) are formed on a common side surface (17) of the housing (2).

14. Vehicle module (1) according to any one of the preceding claims, characterized in that the electronic device (5) comprises a system-on-a-chip unit (19) and / or the vehicle module (1 ) is an electronic control unit.

15. Motor vehicle (20) comprising a vehicle module (1 ) according to any one of the preceding claims.

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