| 摘要 |
A control unit (3) for controlling the service functions of an electric household appliance (e.g. a refrigerator) is connected in series with a positive temperature coefficient (PTC) resisting unit (4) which, when suppli ed with electric current, generates sufficient heat to activate thermally activated actuating means (6) for selectively connecting/disconnecting respective auxiliary switches (9) of service loads (2) corresponding to the service functions of the electric household appliance. The thermally activat ed actuating means (6) include a temperature-deformable element (7) (e.g. a bimetallic plate), the deformation of which is transmitted by kinematic connecting means (10) to a camshaft (8), the cams (12) of which cooperate wi th the auxiliary switches (9) of the service loads (2) to selectively connect/disconnect the auxiliary switches.
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