SAFETY DEVICE, PARTICULARLY FOR HOUSEHOLD APPLIANCES
First Claim
1. A safety device for detecting the presence of living beings inside an housing area of a household appliance, particularly a washing machine or a clothes dryer, with:
- a first electrode device which, as such, is facing the housing area and is a component of a LC network, anda second electrode device which is also facing the housing area and is a component of a LC network, andan evaluation circuit for detecting electric field interactions with at least one of the two electrode devices.
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Accused Products
Abstract
The invention relates to a safety system for detecting the presence of living beings inside a lockable, or alternatively dangerous housing area, particularly the washing housing area of a washing machine or of a clothes dryer, of a stove, of a microwave oven, as well as particularly also in closets and chests. According to a first aspect of the present invention the aim at the beginning is solved by means of a safety device for detecting the presence of living beings inside a dangerous housing area with a first electrode device which, as such, is facing the housing area and is a component of a LC network, and a second electrode device which is also facing the housing area and is a component of a LC network, and an evaluation circuit for detecting the dynamics of electric field interactions with at least one of the two electrode devices in which the detected dynamics is compared with the comparison values provided for the current working condition of the housing area, so that, if the detected dynamics differs from the provided comparison values, a safety function is activated.
9 Citations
21 Claims
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1. A safety device for detecting the presence of living beings inside an housing area of a household appliance, particularly a washing machine or a clothes dryer, with:
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a first electrode device which, as such, is facing the housing area and is a component of a LC network, and a second electrode device which is also facing the housing area and is a component of a LC network, and an evaluation circuit for detecting electric field interactions with at least one of the two electrode devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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- 14. A safety device for detecting the presence of living beings inside a housing drum constructed as a washing housing drum and lockable by means of a door of a washing machine or of a clothes dryer in which a first electrode device is connected to the washing housing drum and a second electrode device is connected to the door in which, on the basis of the electric field coupling of the electrode device on the drum side with the electrode device on the door side, it is determined if a living being is situated in the housing area.
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16. A sensor device for detecting an approach of an object in an observation area monitored by the sensor device, presenting a server circuit with a LC oscillatory circuit with a signal-generating circuit, preferably a high-quality LC oscillatory circuit, for generating an electric field;
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an electrode device coupled with the LC oscillatory circuit in which the capacitance of the electrode device is a component of the oscillatory circuit capacitance and in which the electric field generated by the LC oscillatory circuit is radiated on the electrode device in the observation area; and an evaluation device, wherein the approach of an object in the observation area of the electrode device causes a change in the capacitive environment of the electrode device, which is detectable by the evaluation device. - View Dependent Claims (17, 18, 19, 20)
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21-44. -44. (canceled)
Specification