Device for determining the conductance of laundry, dryers and method for preventing deposits on electrodes
First Claim
1. A laundry dryer, which comprises at least one receiving area for laundry and at least two electrodes for measuring the conductance of the laundry, whereby at least one of the electrodes at least partially borders on the receiving area, the laundry dryer including cooling means for cooling at least a part of at least one of the electrodes;
- a laundry drum defining the receiving area for receiving laundry;
a sensor for measuring the amount of moisture in the laundry, the sensor including the at least one of the electrodes, the at least one of the electrodes having an outer surface exposed to the receiving area;
an air intake receiving a cool air flow; and
an air passageway directing at least a portion of the cool air flow to the sensor to cool the at least one of the electrodes and resist formation of deposits on the at least one of the electrodes,wherein the sensor includes the at least one of the electrodes being connected to a base component defining an opening in fluid communication with the air passageway for providing the cool air flow to pass through the base component and contact the at least one of the electrodes, andthe at least one of the electrodes is formed as an elongated trough-shaped member defining an internal cavity, the outer surface of the at least one of the electrodes facing away from the base component and the internal cavity facing toward the base component and being in fluid communication with the opening and receiving the cool air flow from the opening.
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Accused Products
Abstract
A device for determining the conductance of laundry in a drier. The device comprises at least two electrodes and means for dissipating heat from at least one part of at least one of said electrodes. The invention further relates to a drier comprising at least one area for receiving laundry and at least two electrodes for measuring the conductance of the laundry, at least one of the electrodes at least partly bordering said receiving area. Means for cooling at least one part of at least one of the electrodes are also provided inside the drier. Also disclosed is a method for preventing the formation of layers on electrodes used for measuring conductance in a drier.
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Citations
20 Claims
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1. A laundry dryer, which comprises at least one receiving area for laundry and at least two electrodes for measuring the conductance of the laundry, whereby at least one of the electrodes at least partially borders on the receiving area, the laundry dryer including cooling means for cooling at least a part of at least one of the electrodes;
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a laundry drum defining the receiving area for receiving laundry; a sensor for measuring the amount of moisture in the laundry, the sensor including the at least one of the electrodes, the at least one of the electrodes having an outer surface exposed to the receiving area; an air intake receiving a cool air flow; and an air passageway directing at least a portion of the cool air flow to the sensor to cool the at least one of the electrodes and resist formation of deposits on the at least one of the electrodes, wherein the sensor includes the at least one of the electrodes being connected to a base component defining an opening in fluid communication with the air passageway for providing the cool air flow to pass through the base component and contact the at least one of the electrodes, and the at least one of the electrodes is formed as an elongated trough-shaped member defining an internal cavity, the outer surface of the at least one of the electrodes facing away from the base component and the internal cavity facing toward the base component and being in fluid communication with the opening and receiving the cool air flow from the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 20)
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11. A process for preventing deposit build-up on electrodes for measuring the conductance of laundry in a laundry dryer, the process comprising:
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providing in the laundry dryer a laundry drum that defines a receiving area for the laundry; providing at least two of the electrodes for measuring the conductance of the laundry, whereby at least one of the electrodes at least partially borders on the receiving area; providing the laundry drum with cooling means for cooling at least a part of at least one of the electrodes; measuring the amount of moisture in the laundry with a sensor, the sensor including the at least one of the electrodes, the at least one of the electrodes having an outer surface exposed to the receiving area; providing an air intake receiving a cool air flow; and directing at least a portion of the cool air flow through an air passageway to the sensor to cool the at least one of the electrodes and resist formation of deposits on the at least one of the electrodes, wherein the sensor includes the at least one of the electrodes being connected to a base component defining an opening in fluid communication with the air passageway for providing the cool air flow to pass through the base component and contact the at least one of the electrodes, and the at least one of the electrodes is formed as an elongated trough-shaped member defining an internal cavity, the outer surface of the at least one of the electrodes facing away from the base component and the internal cavity facing toward the base component and being in fluid communication with the opening and receiving the cool air flow from the opening. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification