International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 07 | July 2023
p-ISSN: 2395-0072
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Designing a Heat sink for motor controller unit Aryan Raval1, Vishal Dagra2, Jaydip Prajapati3, Parth Prajapati4, Prof. Kalpesh Vaghela5 1-5Automobile dept, L.D. college of engineering,
Opp Gujarat university, Navrangpura, Ahmedabad, Gujarat, India, 380015 ---------------------------------------------------------------------***--------------------------------------------------------------------between heat dissipation efficiency and the overall mass of Abstract - This research paper presents a detailed
the heat sink. In this research, a case study is conducted to evaluate and compare the thermal performance of two different heat sink designs under various parameters. The case study provides insights into the effectiveness of different design choices in enhancing heat dissipation for the MCU in electric vehicles. By analyzing the performance of these designs under different operating conditions, this study aims to identify the most efficient heat sink design that optimally dissipates heat generated by the MCU while considering factors such as geometry, surface area, and overall dimensions.
investigation into the design and optimization of a heat sink specifically tailored for the motor control unit (MCU) in an electric vehicle which controls the motor of power rating of 1500 Watts, while taking into account constraints such as mass, temperature, and dimensions. The primary objective is to develop a heat sink design that efficiently dissipates the heat generated by the MCU, while simultaneously satisfying the thermal requirements and minimizing size and weight. A systematic and analytical approach is employed, including computational simulations and numerical analysis techniques to model and predict the thermal behavior of the heat sink. By iterating through different configurations, optimal dimensions are identified, balancing heat dissipation efficiency and the overall mass of the heat sink.
The design process begins with a thorough understanding of the thermal characteristics of the MCU, considering factors such as the power dissipation of the MCU and the ambient operating conditions. An accurate thermal model is established, serving as the foundation for conducting computational simulations to evaluate different heat sink designs under varying thermal loads. For the current study peak loads are considered which could be achieved at maximum output of 2500 W which produces 70A of peak current through the MCU circuit.
Key Words: Heat sink, MOSFETs, MCU, Electric Vehicles, Heat dissipation
1.INTRODUCTION The increasing demand for electric vehicles (EVs) has spurred remarkable advancements in the field of electric powertrain technology. Within an electric vehicle, the motor control unit (MCU) plays a crucial role in managing the power flow and ensuring efficient motor performance. However, the operation of the MCU generates substantial heat, which, if not properly dissipated, can lead to performance degradation, reliability issues, and even component failure. Therefore, effective thermal management of the MCU is of paramount importance to ensure its optimal functioning and longevity.
Through iterative simulations and analyses, the performance of each heat sink design is assessed in terms of its ability to dissipate heat effectively and maintain acceptable temperatures within the MCU. The simulations provide insights into the thermal behaviour of the heat sink, helping to identify areas of improvement and optimization. Furthermore, the numerical analysis techniques employed in this research aid in predicting the thermal performance of the heat sink under real-world operating conditions. Factors such as natural convection, forced convection, and radiation heat transfer are considered, leading to a more accurate representation of the heat sink's behavior and enhanced design decisions.
The investigation focuses on the design and optimization of a heat sink specifically tailored for the MCU in an electric vehicle. The aim is to develop a heat sink design that efficiently dissipates the heat generated by the MCU while simultaneously satisfying critical constraints such as mass, temperature, and dimensions. The ultimate goal is to minimize the size and weight of the heat sink while maintaining its thermal performance within acceptable limits.
The findings of this research contribute to the development of an optimized heat sink design that effectively dissipates the heat generated by the MCU in an electric vehicle having set to the current configuration of power outputs. The proposed design not only ensures the thermal reliability and longevity of the MCU but also aims to minimize the size and weight of the heat sink, addressing the weight and space constraints typically associated with electric vehicles.
To achieve this objective, a systematic and analytical approach is adopted, combining computational simulations and numerical analysis techniques to model and predict the thermal behaviour of the heat sink. By employing these methods, various heat sink configurations and dimensions are explored, enabling the identification of optimal designs that strike a balance
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