Vehicle electronics module arrangement and vehicle

Abstract

The present invention relates to a vehicle electronics module arrangement (100) comprising: a vehicle electronics module holder (1) which is designed to be fastened to a vehicle body shell (201), and a vehicle electronics module (2) which is fastened to the vehicle electronics module holder (1), wherein the vehicle electronics module (2) has a bottom surface (2.4) facing the vehicle electronics module holder (1), wherein the vehicle electronics module (2) is fastened to the vehicle electronics module holder (1) in such a way that the bottom surface (2.4) is arranged at a distance from the vehicle electronics module holder (1), and wherein the vehicle electronics module holder (1) has at least one protruding vehicle electronics module-side heat transfer structure (1.3) which is arranged flatly on a side surface (2.5) of the vehicle electronics module (2) running transversely to the bottom surface (2.4) and / or flatly on a shoulder surface (2.5) arranged adjacent to the bottom surface (2.4).6) of the vehicle electronics module (2). The present invention further relates to a vehicle (200) comprising a vehicle body shell (201) and such a vehicle electronics module arrangement (100), wherein the vehicle electronics module holder (1) is fastened to the vehicle body shell (201), and wherein insulation (202) is arranged between the vehicle electronics module (2) and the vehicle body shell (201), through which insulation the vehicle electronics module holder (1) extends.

Description

[0001] The present invention relates to a vehicle electronics module assembly comprising: a vehicle electronics module holder configured to be attached to a vehicle body shell, and a vehicle electronics module attached to the vehicle electronics module holder, wherein the vehicle electronics module has a bottom surface facing the vehicle electronics module holder. The present invention further relates to a vehicle comprising a vehicle body shell and such a vehicle electronics module assembly.

[0002] A vehicle with a vehicle electronic module arrangement of the type mentioned above is known, for example, from DE 10 2012 005 585 B4.

[0003] DE 10 2014 220 489 A1 suggests a vehicle electronic module arrangement according to the preamble of claim 1.

[0004] From DE 10 2022 127 273 A1 it is known to use a stamped and bent part as a heat conducting plate for cell monitoring electronics of an energy storage device.

[0005] The present invention is based on the object of realizing a fastening of a vehicle electronics module with a pressure-sensitive bottom surface that enables effective heat dissipation from the vehicle electronics module.

[0006] This object is achieved according to the invention by a vehicle electronics module arrangement having the features of claim 1 and by a vehicle having the features of claim 8.

[0007] The vehicle electronics module assembly according to the invention comprises a vehicle electronics module holder designed to be attached to a vehicle body shell, and a vehicle electronics module attached to the vehicle electronics module holder.

[0008] The vehicle electronics module is preferably a vehicle control unit, but can in principle be any electronic vehicle module. The vehicle electronics module has a pressure-sensitive base surface and is therefore attached to the vehicle electronics module holder in such a way that the base surface is arranged at a distance from the vehicle electronics module holder, i.e. is not touched by the vehicle electronics module holder. The vehicle electronics module can be attached to the vehicle electronics module holder, for example, via fastening structures arranged laterally on a module housing of the vehicle electronics module and projecting downwards beyond the base surface. The vehicle electronics module is preferably attached to the vehicle electronics module holder via expanding rivets, but can in principle also be attached to the vehicle electronics module holder in any other suitable manner, for example via screws and / or bolts.

[0009] The vehicle electronics module holder is preferably made of metal, but can in principle also be made of another material with a relatively high thermal conductivity. The vehicle electronics module holder is preferably formed in one piece. The vehicle electronics module holder comprises at least one, preferably several, fastening structures, for example fastening tabs, which are designed to be fastened to the vehicle body shell, preferably via bolts.

[0010] According to the invention, the vehicle electronics module holder comprises at least one protruding heat transfer structure on the vehicle electronics module side, which bears flatly against a side surface of the vehicle electronics module running transversely to the base surface and / or flatly against a shoulder surface of the vehicle electronics module arranged adjacent to the base surface. The heat transfer structure creates a relatively large contact surface between the vehicle electronics module and the vehicle electronics module holder, whereby effective heat transfer between the vehicle electronics module and the vehicle electronics module holder can be achieved. The at least one heat transfer structure is preferably formed by a tab-shaped bent part of the vehicle electronics module holder.

[0011] The vehicle electronics module arrangement according to the invention enables the realization of a fastening of a vehicle electronics module with a pressure-sensitive bottom surface, wherein effective heat dissipation from the vehicle electronics module can be achieved due to the vehicle electronics module-side heat transfer structure of the vehicle electronics module holder.

[0012] According to the invention, the vehicle electronics module comprises a metallic housing cover, i.e. one made of metal, which forms both the bottom surface of the vehicle electronics module and the at least one side surface of the vehicle electronics module and / or the at least one shoulder surface of the vehicle electronics module against which the at least one vehicle electronics module-side heat transfer structure of the vehicle electronics module holder rests. The housing cover is preferably designed as a sheet metal part. The at least one shoulder surface is preferably formed by an edge region of the housing cover, with which the housing cover rests against another housing part of the vehicle electronics module. The metallic housing cover has a relatively high thermal conductivity and therefore enables effective heat transfer from the vehicle electronics module to the vehicle electronics module holder.

[0013] Preferably, the metallic housing cover is thermally coupled to an electronic component of the vehicle electronics module, for example to a microcontroller or another electronic chip, for example via a thermal paste or another suitable heat transfer medium, so that waste heat generated by the electronic component can be effectively transferred into the vehicle electronics module holder via the metallic housing cover.

[0014] Preferably, the vehicle electronics module holder is a stamped and bent part that can be manufactured relatively inexpensively by punching or cutting and then forming from a metal sheet.

[0015] Preferably, the heat transfer structure on the vehicle electronics module side is resiliently configured such that the heat transfer structure on the vehicle electronics module side is pressed against the side surface of the vehicle electronics module and / or against the shoulder surface of the vehicle electronics module by the spring action. This allows for reliable contact between the vehicle electronics module and the vehicle electronics module holder, and thus reliable heat transfer between the vehicle electronics module and the vehicle electronics module holder.

[0016] In a preferred embodiment, the vehicle electronics module holder has a plurality of vehicle electronics module-side heat transfer structures that rest against different side surfaces of the vehicle electronics module, each extending transversely to the bottom surface of the vehicle electronics module, and / or against different shoulder surfaces of the vehicle electronics module, each arranged adjacent to the bottom surface of the vehicle electronics module. The plurality of vehicle electronics module-side heat transfer structures allows for a particularly large contact area between the vehicle electronics module and the vehicle electronics module holder, and thus a particularly effective heat transfer between the vehicle electronics module and the vehicle electronics module holder.Furthermore, the vehicle electronics module-side heat transfer structures located on the different side surfaces of the vehicle electronics module and / or the different shoulder surfaces of the vehicle electronics module enable effective heat dissipation from different areas of the vehicle electronics module.

[0017] The vehicle electronics module holder preferably comprises at least one, preferably several, heat transfer structures on the vehicle body side, which are designed to lie flat against a surface of the vehicle body. The at least one heat transfer structure on the vehicle body side is preferably formed by a tab-shaped bent part of the vehicle electronics module holder. The at least one heat transfer structure on the vehicle body side is preferably designed to be resilient such that, when mounted on the vehicle body, the heat transfer structure on the vehicle body side is pressed against the surface of the vehicle body by the spring action. The at least one heat transfer structure on the vehicle body side makes it possible to achieve a particularly large contact area between the vehicle electronics module holder and the vehicle body, and thus particularly effective heat transfer between the vehicle electronics module holder and the vehicle body.

[0018] The vehicle according to the invention comprises a vehicle body shell and a previously described vehicle electronics module arrangement according to the invention, wherein the vehicle electronics module holder of the vehicle electronics module arrangement according to the invention is fastened to the vehicle body shell, and wherein an insulation is arranged between the vehicle electronics module of the vehicle electronics module arrangement according to the invention and the vehicle body shell, through which insulation the vehicle electronics module holder extends.

[0019] By means of the vehicle electronics module arrangement according to the invention, a fastening of a vehicle electronics module with a pressure-sensitive base surface can be realized, which, for the reasons described above, enables effective heat dissipation from the vehicle electronics module despite the insulation present between the vehicle electronics module and the vehicle body shell.

[0020] An embodiment of the present invention is described below with reference to the accompanying figures. Herein: Fig. 1 schematically shows a perspective view of a top side of a vehicle electronics module arrangement according to the invention, Fig. 2 schematically shows a perspective view of a bottom side of the vehicle electronic module arrangement from Fig. 1, Fig. 3 shows a simplified cross-section of the vehicle electronic module assembly Fig. 1 and Fig. 2 comprising part of a vehicle according to the invention.

[0021] The figures show a vehicle electronics module arrangement 100 according to the invention, which comprises a vehicle electronics module holder 1 and a vehicle electronics module 2, preferably a vehicle control unit, fastened to the vehicle electronics module holder 1.

[0022] The vehicle electronics module 2 comprises a two-part module housing 2.1 with a housing base body 2.1.1 and a metallic housing cover 2.1.2, which is attached to the housing base body 2.1.1.

[0023] The vehicle electronics module 2 comprises a chip-shaped electronic component 2.2, which is arranged in the module housing 2.1 and which is thermally coupled to the metallic housing cover 2.1.2.

[0024] The vehicle electronics module 2 comprises two fastening structures 2.3 arranged on opposite sides of the vehicle electronics module 2, via which the vehicle electronics module 2 is fastened to the vehicle electronics module holder 1 by means of expanding rivets 3.

[0025] The fastening structures 2.3 are designed such that a bottom surface 2.4 of the vehicle electronics module 2, which is formed by the metallic housing cover 2.1.2 and faces the vehicle electronics module holder 1, is arranged at a distance from the vehicle electronics module holder 1 and consequently does not touch the vehicle electronics module holder 1.

[0026] The vehicle electronics module holder 1 is a stamped and bent part made of a metal sheet.

[0027] The vehicle electronics module holder 1 comprises two fastening tabs 1.1 arranged on opposite sides of the vehicle electronics module holder 1 for fastening the vehicle electronics module holder 1 to a vehicle body shell 201, for example by means of a screw or a bolt.

[0028] The vehicle electronics module holder 1 comprises four tab-shaped heat transfer structures 1.2 on the vehicle body side, which are arranged in pairs adjacent to the two fastening tabs 1.1 and which are designed as shown in Fig. 3, to lie flat against a surface 201.1 of the vehicle body shell 202 in order to enable effective heat transfer from the vehicle electronics module holder 1 into the vehicle body shell 202.

[0029] The vehicle electronics module holder 1 comprises four tab-shaped vehicle electronics module-side heat transfer structures 1.3 that protrude in the direction of the vehicle electronics module 2 and that each lie flat against a side surface 2.5 of the vehicle electronics module 2 that runs transversely to the bottom surface 2.4 of the vehicle electronics module 2, wherein all four side surfaces 2.5 contacted by the four vehicle electronics module-side heat transfer structures 1.3 are formed by the metallic housing cover 2.1.2.

[0030] The four heat transfer structures 1.3 additionally or alternatively each lie flat against a shoulder surface 2.6 of the vehicle electronics module 2 arranged adjacent to the base surface 2.4, which shoulder surface is formed by an edge region 2.1.2.1 of the housing cover 2.1.2, with which the housing cover 2.1.2 lies against the housing base body 2.1.1.

[0031] The four vehicle electronics module-side heat transfer structures 1.3, each of which lies flat against the metallic housing cover 2.1.2, enable effective heat transfer from the metallic housing cover 2.1.2, which is thermally coupled to the electronic component 2.2, into the vehicle electronics module holder 1.

[0032] The four vehicle electronics module-side heat transfer structures 1.3 are arranged such that the four vehicle electronics module-side heat transfer structures 1.3 each rest in pairs on side surfaces 2.5 and / or shoulder surfaces 2.6 located on opposite sides of the base surface 2.4.

[0033] Furthermore, the four heat transfer structures 1.3 on the vehicle electronics module side are each designed to be resilient such that the four heat transfer structures 1.3 on the vehicle electronics module side are each pressed against the respective side surface 2.5 and / or shoulder surface 2.6 of the vehicle electronics module 2 by the spring action.

[0034] Fig. 3 shows, in a highly simplified manner, a part of a vehicle 200 according to the invention comprising the vehicle electronics module arrangement 100, wherein the vehicle electronics module holder 1 is fastened to the vehicle body shell 201 and rests against the surface 201.1 of the vehicle body shell 201 with the vehicle body shell-side heat transfer structures 1.2.

[0035] An insulation 202 is arranged between the vehicle electronics module 2 and the vehicle body shell 201, through which the vehicle electronics module holder 1 extends and thus enables effective heat transfer from the vehicle electronics module 2 into the vehicle body shell 201 despite the presence of the insulation 202. List of reference symbols 100 vehicle electronics module arrangement 1 vehicle electronics module holder 1.1 Mounting tabs 1.2 Heat transfer structures on the vehicle body 1.3 Vehicle electronics module-side heat transfer structures 2 vehicle electronics module 2.1 Module housing 2.1.1 Housing body 2.1.2 metallic housing cover 2.1.2.1 Marginal area 2.2 Electronic component 2.3 Mounting structures 2.4 Floor area 2.5 Side surfaces 2.6 Sales area 3 expanding rivets 200 vehicles 201 Vehicle body shell 201.1 Surface 202 Insulation

Claims

[1] Vehicle electronic module arrangement (100) comprising: a vehicle electronics module holder (1) designed to be attached to a vehicle body shell (201), and a vehicle electronics module (2) which is fastened to the vehicle electronics module holder (1), wherein the vehicle electronics module (2) has a bottom surface (2.4) facing the vehicle electronics module holder (1), wherein the vehicle electronics module (2) is fastened to the vehicle electronics module holder (1) in such a way that the bottom surface (2.4) is arranged at a distance from the vehicle electronics module holder (1), and the vehicle electronics module holder (1) has at least one protruding vehicle electronics module-side heat transfer structure (1.3), which lies flat against a side surface (2.5) of the vehicle electronics module (2) running transversely to the base surface (2.4) and / or flat against a shoulder surface (2.6) of the vehicle electronics module (2) arranged adjacent to the base surface (2.4), characterized by , that the bottom surface (2.4) as well as the side surface (2.5) and / or the shoulder surface (2.6) are formed by a metallic housing cover (2.1.2) of the vehicle electronics module (2). [2] Vehicle electronic module arrangement (100) according to claim 1, wherein the metallic housing cover (2.1.2) is thermally coupled to an electronic component (2.2) of the vehicle electronic module (2). [3] Vehicle electronic module arrangement (100) according to one of the preceding claims, wherein the vehicle electronic module holder (1) is a stamped and bent part. [4] Vehicle electronics module arrangement (100) according to one of the preceding claims, wherein the vehicle electronics module-side heat transfer structure (1.3) is designed to be resilient such that the vehicle electronics module-side heat transfer structure (1.3) is pressed against the side surface (2.5) and / or the shoulder surface (2.6) by the spring action. [5] Vehicle electronics module arrangement (100) according to one of the preceding claims, wherein the vehicle electronics module holder (1) has a plurality of vehicle electronics module-side heat transfer structures (1.3) which bear against different side surfaces (2.5) of the vehicle electronics module (2) each extending transversely to the bottom surface (2.4) and / or against different shoulder surfaces (2.6) of the vehicle electronics module (2) each arranged adjacent to the bottom surface (2.4). [6] Vehicle electronics module arrangement (100) according to one of the preceding claims, wherein the vehicle electronics module holder (1) has at least one heat transfer structure (1.2) on the vehicle body shell side, which is designed to lie flat against a surface (201.1) of the vehicle body shell (201). [7] Vehicle (200) comprising a vehicle body shell (201) and a vehicle electronics module arrangement (100) according to one of the preceding claims, wherein the vehicle electronics module holder (1) is fastened to the vehicle body shell (201), and wherein an insulation (202) is arranged between the vehicle electronics module (2) and the vehicle body shell (201), through which insulation the vehicle electronics module holder (1) extends.

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