Method for testing a peltier element as well as a small electrical appliance with a peltier element and a safety device
AssigneeBraun GmbH
InventorJan Christian Langsdorf
Life of this patent
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Abstract
A method with the following steps is described for testing a Peltier element: applying a voltage to the Peltier element; switching off the voltage at the end of a defined period of time; measuring the voltage at the Peltier element; and comparing the measured voltage with a reference value. Furthermore, a small electrical appliance, such as an electric shaver, with a Peltier element is described, which small electrical appliance has a safety device which ensures that a malfunction of the Peltier element cannot result in danger to the user.
Claims9
A method for testing a Peltier element comprising the following steps:
- applying a voltage (V) to the Peltier element;
- switching off the voltage (V) at the end of a defined period of time;
- measuring the voltage (VP) at the Peltier element;
- and
- comparing the measured voltage (VP) with a reference value (VR).
An electrical appliance with a Peltier element, said Peltier element comprising a warm side and a cold side, the cold side of which is accessible to a user, said electrical appliance further comprising a safety device for testing said Peltier element by:
- applying a voltage (V) to the Peltier element;
- switching off the voltage (V) at the end of a defined period of time;
- measuring the voltage (VP) at the Peltier element;
- and
- comparing the measured voltage (VP) with a reference value (VR).
Dependencies are inferred from the claim text.