Dryer with a heat pump and an electrical heating element and also a method for its operation
AssigneeBSH Bosch und Siemens Hausgerate GmbH
InventorsUwe-Jens Krausch, Andreas Stolze
Life of this patent
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Abstract
The invention relates to a dryer with a drying chamber for the items to be dried, a process air duct, a fan in the process air duct, a heat pump with a heat sink and a heat source thermally coupled to the process air duct, and also an electrical heating element. The electrical heating element is arranged in the direct vicinity of the heat source, with a first distance between the electrical heating element and the heat source being smaller than a second distance between the electrical heating element and an entry for the process air into the drying chamber. The invention also relates to a method for operating this dryer.
Claims11
A dryer comprising:
- a drying chamber;
- a process air duct in communication with the drying chamber;
- a fan in the process air duct;
- a heat pump with a heat sink and a heat source thermally coupled to the process air duct;
- and
- an electrical heating element in a direct vicinity of the heat source, wherein a first distance between the electrical heating element and the heat source is smaller than a second distance between the electrical heating element and an entry for the process air into the drying chamber.
A method for operating a dryer with a drying chamber for the items to be dried, a process air duct, a fan in the process air duct, a heat pump with a heat sink and a heat source thermally coupled to the process air duct, and also an electrical heating element which is arranged in the direct vicinity of the heat source, with a first distance between the electrical heating element and the heat source being smaller than a second distance between the electrical heating element and an entry for the process air into the drying chamber, the method comprising:
- heating up process air with the condenser;
- subsequently heating up the process air with the electrical heating element;
- and
- directing the heated air into the drying chamber.
Dependencies are inferred from the claim text.