Temperature sensor and method for adjusting such a temperature sensor
AssigneeE.G.O. Elektro-Geraetebau GmbH
InventorsPhilipp Pérez Castillo, Willi Reichert, Bruno Schlenker
Life of this patent
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Abstract
A temperature sensor for a radiant heater has a first tubular expansion element which is connected to its housing and contains a second rod-like expansion element, the two expansion elements having different coefficients of thermal expansion. The temperature sensor has two switching springs for different switching points. In order to adjust a second switching spring, which is fastened to a second switching spring base, the second switching spring base can be moved in the longitudinal direction of the rod and is then permanently fixed by bending or welding.
Claims18
A temperature sensor with a housing, said temperature sensor comprising
- a first expansion element connected to said housing and being in a form of a tube and containing a second expansion element in a form of a rod, said first and said second expansion elements having different coefficients of thermal expansion;
- a first switching spring pre-stressed with respect to a point and having a switching contact, said rod acting on one side of said switching spring;
- and
- a second switching spring provided in an effective direction of said rod or of an intermediate element as an extension of said rod, said second switching spring fastened to a second switching spring base,
- wherein said second switching spring base is configured to be movable with at least one direction component along a longitudinal direction of said rod thereby adjusting a switching point of said second switching spring, wherein locking means fixes a position of said second switching spring base.
A temperature sensor with a housing, said temperature sensor comprising:
- a first expansion element being connected to said housing comprising a tube containing a second expansion element comprising a rod, said first and second expansion elements having different coefficients of thermal expansion;
- a first switching spring pre-stressed with respect to a point and comprising a switching contact, said rod acting on one side of said switching spring;
- a second switching spring provided in an effective direction of said rod or of an intermediate element as an extension of said rod, said second switching spring fastened to a second switching spring base;
- a mating contact being assigned to said switching contact;
- and
- a counter-stop provided for stopping said switching contact when said switching spring is open, wherein said counter-stop is configured to adjustable either in a direction towards the mating contact or away from said mating contact prior to being fixed in position.
A method for adjusting a temperature sensor with a housing, said temperature sensor comprising
- a first expansion element connected to said housing and being in a form of a tube and containing a second expansion element in a form of a rod, said first and said second expansion elements having different coefficients of thermal expansion,
- a first switching spring pre-stressed with respect to a point and having a switching contact, said rod acting on one side of said switching spring, and
- a second switching spring provided in an effective direction of said rod or of an intermediate element as an extension of said rod, said second switching spring fastened to a second switching spring base,
- wherein said second switching spring base is configured to be movable with at least one direction component along a longitudinal direction of said rod thereby adjusting a switching point of said second switching spring, wherein locking means fixes a position of said second switching spring base, said method comprising the steps of:
- setting a switching point of said second switching spring at a particular temperature at which said second switching spring triggers or is intended to switch;
- and
- fixing a position of said second switch spring base by a locking means after said step of setting said switching point.
Dependencies are inferred from the claim text.