초록 ▼

Electrical heating apparatus, including a frame formed of insulating material having an opening formed therethrough, a heating element formed of positive temperature coefficient material having two opposing outer surfaces and being disposed in the opening formed in the frame, an electrically-conduct

Electrical heating apparatus, including a frame formed of insulating material having an opening formed therethrough, a heating element formed of positive temperature coefficient material having two opposing outer surfaces and being disposed in the opening formed in the frame, an electrically-conducting current supply contact layer disposed on each of the two opposing outer surfaces of the heating element, an electrically conducting current input electrode plate formed of yieldable material being anchored in the frame and being disposed on each of the contact layers forming an integral structural unit enclosing the heating element, and a heat conducting plate formed of insulating material disposed on each of the electrode plates receiving heat transfered through the contact layers and clamping the heating element under pressure.

대표청구항 ▼

Electrical heating apparatus, comprising a frame formed of insulating material having an opening formed therethrough, a heating element formed of positive temperature coefficient material having two opposing outer surfaces and being disposed in said opening formed in said frame, an electrically-cond

Electrical heating apparatus, comprising a frame formed of insulating material having an opening formed therethrough, a heating element formed of positive temperature coefficient material having two opposing outer surfaces and being disposed in said opening formed in said frame, an electrically-conducting current supply contact layer disposed on each of said two opposing outer surfaces of said heating element, an electrically conducting current input electrode plate formed of yieldable material and being disposed in electrical contact on the outer surface of each of said contact layers, said electrode plates being anchored in said frame forming an integral structural unit enclosing said heating element, and a heat conducting plate formed of electrically insulating material disposed on each of said electrode plates receiving heat transferred through said contact layers.