A power appliance, comprising a split bobbin assembly for holding an electrical coil portion of a driving assembly used in the power appliance, the split bobbin assembly comprising: a first portion which is mated with a base part of the driving assembly and is made from the same material as the base part, namely a material which is sufficiently heat-resistant as to permit attachment of coil wires to terminal pins located in the base part and has sufficiently high strength to withstand the coil being wound there around; a second, opposing portion which is mated with a part of the appliance exposed to the operating environment of the appliance, wherein the second portion is made from the same material as the part, namely a material which can withstand exposure to the operating environment; and connecting elements (84, 88) on the first and second portions joining the first and second portions together, wherein the connecting elements interlock together, and wherein the first and second portions define a complete bobbin member around which the coil is wound, wherein the first portion includes a first section which extends from the base and a second section which extends from the end of the first section, and includes ears extending outwardly from the top and bottom surfaces (80, 81) of the first portion, said ears having each a slight outward bulge at a forward end thereof and slightly different configurations the second portion has internal dimensions to receive the second section of the first portion, and includes two slots extending inwardly from the outer edge 85 of the second portion in respectively the upper and lower opposed surfaces thereof, said two slots being configured to receive said ears of the first portion, said two slots having slightly different configurations, and being arranged to mate with their associated ears so that each ear uniquely fits its associated slot and not the other. a first portion which is mated with a base part of the driving assembly and is made from the same material as the base part, namely a material which is sufficiently heat-resistant as to permit attachment of coil wires to terminal pins located in the base part and has sufficiently high strength to withstand the coil being wound there around; a second, opposing portion which is mated with a part of the appliance exposed to the operating environment of the appliance, wherein the second portion is made from the same material as the part, namely a material which can withstand exposure to the operating environment; and connecting elements (84, 88) on the first and second portions joining the first and second portions together, wherein the connecting elements interlock together, and wherein the first and second portions define a complete bobbin member around which the coil is wound, wherein the first portion includes a first section which extends from the base and a second section which extends from the end of the first section, and includes ears extending outwardly from the top and bottom surfaces (80, 81) of the first portion, said ears having each a slight outward bulge at a forward end thereof and slightly different configurations the second portion has internal dimensions to receive the second section of the first portion, and includes two slots extending inwardly from the outer edge 85 of the second portion in respectively the upper and lower opposed surfaces thereof, said two slots being configured to receive said ears of the first portion, said two slots having slightly different configurations, and being arranged to mate with their associated ears so that each ear uniquely fits its associated slot and not the other.