HOW TO REDUCE THE RISK OF HEAT-RELATED ACCIDENTS IN THE PASSENGER COMPARTMENT: THE IMPORTANCE OF THE UNDERBODY HEAT SHIELD IN THE AUTOMOTIVE INDUSTRY

Temperature control within the cabin is a critical factor in overall road safety, as driving at over 35°C inside the vehicle increases the risk of accidents by 25%. The impact of extreme heat on a driver’s reflexes and fatigue levels is comparable to driving under the influence of alcohol.

For original equipment manufacturers (OEMs) and Tier 1 suppliers, ensuring thermal comfort within the cabin is no longer just a matter of passenger comfort; it is a fundamental requirement for active safety, energy efficiency, and operational excellence.

The Challenge of Underbody Thermal Management

While the first line of defense is typically the heating, ventilation, and air conditioning (HVAC) system, true thermal efficiency starts with passive insulation in the vehicle’s structure. The thermal energy generated by the exhaust system can penetrate directly into the passenger compartment if an efficient heat shield is not installed on the vehicle’s underbody.

Components in the exhaust line, such as mufflers and exhaust pipes, reach extremely high temperatures during operation. Without adequate protection, this radiant heat transfers directly toward the floor of the vehicle and surrounding components, leading to:

• Increased passenger compartment temperature: Forces the HVAC system to operate at higher power, increasing fuel consumption or reducing EV battery range.
• Degradation of adjacent components: Premature exposure to thermal wear on wiring, sensors, and chassis elements.
• Reduced acoustic comfort: Transmission of vibrations and noise from the exhaust line directly into the cabin.

Neklar’s Underbody Heat Shield: Precision Engineering for OEMs and Tier 1s

To address these challenges, Neklar designs and manufactures the Underbody Heat Shield: An advanced thermo-acoustic metal stamping solution specifically engineered to cover critical exhaust system elements.

Technical Features and Product Benefits:

• High-Efficiency Materials: Manufactured from embossed aluminium alloys with an optimized thickness ranging from 0.3 to 0.8 mm. This lightweight structure maximizes radiant heat dissipation without adding unnecessary weight to the vehicle.
• Comprehensive Thermal Insulation: Acts as a reflective barrier to protect the passenger compartment area and surrounding chassis parts.
• Optional Dual Thermo-Acoustic Function: By incorporating microperforation, the shield adds acoustic absorption and isolation capabilities, significantly reducing cabin noise levels and enhancing the driving experience.

At Neklar, we support our customers through every stage, from product design, simulation, and fast prototyping to hands-on testing, accelerating the evolution of their platforms with nimble methodologies and automated manufacturing processes.

Strategic Partnership for the New Mobility Era

As a preferred global partner for leading auto brands and system packagers, Neklar works side by side with OEMs and Tier 1s to integrate solutions that optimize costs, reduce environmental impact, and ensure the highest standards of safety and operational excellence.

Through pioneering thermo-acoustic metal stamping solutions, we help turn climate and regulatory challenges into competitive opportunities for the automotive industry.

The Importance of the Underbody Heat Shield for Vehicle Safety and Comfort