MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202621096366 A) filed by Dr. D. Y. Patil Institute Of Technology, Pimpri, Pune- on August 10, 2026, for Design And Development Of Positive Temperature Coefficient (ptc) Based Self-Regulating Heater.
Inventors include Prof. Shivaji Jadhav; Jay Shirsath; Krushna Adhav; and Soham Narawade.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: The present invention relates to a Positive Temperature Coefficient (PTC) Based Self-Regulating Heater System designed for intelligent thermal management, energy- efficient heating, and enhanced operational safety across automotive, industrial, commercial, and consumer applications. The invention utilizes a ceramic PTC heating element exhibiting a positive temperature coefficient characteristic whereby the electrical resistance of the material increases automatically with increasing temperature. This unique characteristic enables automatic regulation of current flow and heat generation without requiring complex external temperature control circuitry. The disclosed heater system comprises a ceramic PTC heating element, conductive electrodes, thermal insulation layers, heat transfer components, protective housing structures, and optional airflow enhancement devices including blower fans and ventilation modules. Upon application of electrical power, the PTC element generates heat through resistive heating. As the operating temperature rises toward a predetermined limit, the electrical resistance of the PTC material increases significantly, thereby reducing current flow and automatically stabilizing the temperature. This self-regulating mechanism prevents overheating, thermal runaway, and excessive power consumption while improving operational reliability. In one preferred embodiment, the heater assembly incorporates aluminum heat sink fins and forced-air circulation arrangements to enhance heat transfer efficiency and provide uniform thermal distribution. The modular design enables operation across a wide range of voltage ratings extending from low-voltage consumer applications to high-voltage industrial and electric vehicle systems. The heater may be manufactured in flat plate, tubular, circular disc, finned, or customized configurations depending upon application requirements.
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