HIGH POWER PPTC HEATER FOR LOW LIMITING TEMPERATURE OPERATION

• Main Authors: ZHOU, Zhiyong, CHEN, Jianhua, FU, Yingsong
• Format: Patent
• Language: English
• Published: 22.02.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A resistance heater may include a polymer positive temperature coefficient (PPTC) material, arranged in a PPTC body defining a heater main surface. The PPTC material may include a polymer matrix, the polymer matrix defining the PPTC body, and a graphene filler component, disposed in the polymer matrix. The resistance heater may include an electrode assembly, comprising a first electrode and a second electrode arranged in contact with the heater body at two or more locations, a first lead, connected to the first electrode, and a second lead, connected to the second electrode. As such, the electrode assembly may define a current path between the first lead and the second lead, the current path comprising a first portion, extending along the heater main surface, and a second portion, extending through the heater body.