Villinger Heating Technology
We have developed electrically heated, semi-conductive coatings that are applicable on various surfaces as an ultra-thin heater layer (<0,2mm thickness, <150g/m2). When voltage is applied, the heater layer provides an even, full-face heat build-up and emits infrared radiation heat. Matching the exact 3D shape of the part and only adding 0,2mm in thickness, our heater layer forms the most versatile heating technology available.
Heater Design
The Villinger heating technology is characterized by great versatility and easy application, which allows us to put heat directly exactly where it is needed. Depending on application needs and/or customer requirements, the heater layer can be applied onto almost any desired base material either directly, or as a foil heater. Where conventional heating technologies fail is where we step in to solve the problem.
Damage
Resistance
The heater layer is characterized by a very high damage tolerance and can readily continue to operate after being punctured repeatedly. As long as the contact wires keep in an undamaged state, the heater withstands several partial broken areas, such as holes in the heating zone.
Self- Regulation &
System Safety
Villinger R&D systems are safe by design:
The heater layer provides an even and homogeneous heat-up process and self-regulating capabilities, preventing heater failure due to “hot spots” that can quickly develop with conventional heaters. This behaviour is attributed to the material’s light positive temperature coefficient (PTC). Materials with a PTC experience an increase in electrical resistance when their temperature is raised. Therefore the heat is regulated properly and the formation of hot spots, or an uncontrolled heat build-up are prevented. As a result, our heater layer can be designed to reach a maximum temperature for a given input voltage, since at some point any further increase in temperature would only be met with greater electrical resistance.
Another advantage is the coating’s smooth exhibition of distributed heating over the entire energized zone. Due to these self-limiting capabilities, on many occasions there is no need for thermal sensing of the heater, further reducing system complexity and still featuring full system safety.
Infrared
Emission
Among other benefits, the Villinger heater layer offers high emission of infrared radiation heat. Infrared (IR) is a type of electromagnetic radiation that transfers heat to an object without the need of direct contact between the heat source and the object. This effect enables us to manufacture heating systems in such way, that the heater itself does not necessarily have to be in touch with the part or area to be heated.
Furthermore, the IR emission of the heater layer makes it the ideal solution for interior heating systems. Other than convection heat, IR passes through the outer skin and warms the human body directly from the inside, just like the warm-up process given by the sun. A much more convenient and efficient way of interior heating for car interiors, aircraft cabins and rooms of all kinds is guaranteed.
Note: If mainly contact heat is required, the heater can be manufactured in such way that contact heat is generated only.
Technical Parameters
Advantages:
- PTC effect: self controlling and works against hot spots
- Heaters safe by design – Heating systems with or without ECU
- High damage tolerance
- Low power consumption
- Flexible and easy application
– Applicable to various base materials & shapes
- DO-160 approved (Aviation standards)
Technical Parameters:
- Coating Thickness: < 0,2mm
- Coating Weight: < 150g/m2
- Max. Temperature (active or passive): 180°C
- Max. Power Density: 120.000 W/m2
- Max. Input Voltage: 1000 Volts (AC or DC)
