Patent ID: 6723966
Filing Date: 2004-04-20
Classification: F24H,H05B

Abstract:
A PTC heater which mainly comprises PTC ceramic sheets and cooling fins, wherein it comprising an inner support (10) in which the PTC sheets (4) are disposed, two electrode plates (9, 13) being disposed on both sides of the support (10) and the PTC sheets (4) to abut against the PTC sheets (4) tightly, the cooling fins (1, 8) being disposed at the exterior of the electrode plates, insulating plates (3, 12) being mounted between the cooling fins and the electrode plates, in the interior of upper and lower ends of the cooling fins (1, 8), corresponding clamping grooves (2) being formed through which the cooling fins (1, 8) are clamped together, and elastic rods (7) being inserted in the clamping grooves (2).