Fixing system, tolerance compensation assembly, and installation method
A fixing system and tolerance compensation technology, applied in battery pack parts, structural parts, power units, etc., can solve the problems of increased battery weight, large thermal resistance, and poor thermal conductivity of thermal paste.
Pending Publication Date: 2020-10-02
AUDI AG
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Problems solved by technology
[0006] However, this brings many disadvantages
On the one hand and the biggest disadvantage, the distance between the battery module and the cooling base filled with the thermal paste also becomes larger as a result
Although thermally conductive paste has a better thermal conductivity than air, the thermal conductivity of thermally conductive paste is significantly lower compared to, for example, metals, so that due to the relatively large, in particular still large, gaps between the battery modules and the cooling base Huge thermal resistance, which counteracts efficient module cooling
Furthermore, a further disadvantage is that on the one hand the thermal paste is very expensive, so that larger gaps are correspondingly more expensive, and on the other hand the increased demand for thermal paste significantly increases the cost of the entire battery, especially for motor vehicles. The weight of the high voltage battery
However, for electric vehicles, the high weight is particularly detrimental to their maximum range
Method used
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[0044] The embodiments set forth below are preferred embodiments of the invention. In the exemplary embodiments, the constituents of the description of the specific embodiment correspond to individual features of the invention which can be considered independently of one another and which respectively also develop the invention independently of one another. Therefore, the present disclosure shall also include combinations of features of the embodiments other than those shown. Furthermore, the described embodiments can also be supplemented by other features of the invention which have already been described.
[0045] In the figures, identical reference numerals denote corresponding functionally identical elements.
[0046] figure 1 A schematic diagram of a fastening system 10 according to an exemplary embodiment of the present invention is shown, which has a battery module 12 , a cooling device 14 and a fastening mechanism 16 for fastening the battery module 12 to the cooling...
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The invention relates to a fixing system (10), which is provided with a battery module (12) for a motor vehicle, a cooling device (14), and a fixing mechanism (13) for fixing the battery module (12) on the cooling device (14). The battery module (12) is arranged on the cooling device (14). A heat conducting element (22) is arranged between the battery module (12) and the cooling device (14). The battery module (12) is provided with a first fixing member (12a). The fixing system (10) has a second fixing member (18a). The second fixing member is part of the cooling device (14) and is connected to the cooling device (14). The first fixing member (12a) is fixed to the second fixing member (18a) through a fixing mechanism (16). The fixing mechanism (16) is configured so that through the fixingmechanism (16), along a determined fixing direction (-z), tolerance compensation is provided between the first fixing member (12a) and the second fixing member (18a); and the determined fixing direction extends from the battery module (12) to the cooling device (14).
Description
technical field [0001] The invention relates to a fastening system having a battery module for a motor vehicle, a cooling device for cooling the battery module and a fastening mechanism for fastening the battery module to the cooling device. Here, the battery module is arranged on a cooling device, a heat conducting element is arranged between the battery module and the cooling device, the battery module has a first fastening component, the fastening system has a second fastening component, the second fastening component is provided by a part of the cooling device Or it is connected with the cooling device, and the first fixing member is fixed to the second fixing member by means of a fixing mechanism. The present invention also relates to: a tolerance compensation assembly, which is used for a fixing mechanism for fixing the battery module at the cooling device; and an installation method for fixing the battery module at the cooling device. Background technique [0002] DE...
Claims
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IPC IPC(8): H01M2/10H01M10/613H01M10/625F16B13/12B60K1/04H01M50/264
CPCH01M10/613H01M10/625B60K1/04F16B13/124B60K2001/005H01M50/264Y02E60/10F16B2200/506F16B13/063F16B5/02H01M2220/20H01M10/6554F16B5/06
Inventor D·赫夫纳
Owner AUDI AG