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US 9,062,406 B2Granted
Water level/vibration detection apparatus for washing machine and washing machine having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsDong Il Back, Song Yik Lee
Life of this patent
Estimating the term…
Abstract
A water-level/vibration detection apparatus includes a diaphragm adapted to be moved by air pressure applied through an air hose and a core slidably placed on a support shaft of the diaphragm while being elastically supported by an elastic member. The water-level/vibration detection apparatus detects the level of water and vibration via movement of the core into a coil which constitutes a resonance circuit.
Claims19
A washing machine comprising:
- a water tub;
- a rotating tub rotatably installed in the water tub;
- and
- a water-level/vibration detection apparatus connected to an air hose communicating with the water tub and serving to detect the level of water and vibration of the water tub,
- wherein the water-level/vibration detection apparatus includes
- a housing having a compression chamber communicating with the air hose;
- a bobbin placed in the housing, on an outer circumference of which a coil to create a resonance circuit is supported;
- a diaphragm, both ends of which are supported by coil springs, the diaphragm having a support shaft to be moved in the bobbin based on a change in pressure within the compression chamber;
- a core placed on an outer surface of the support shaft so as to be slidably moved on the support shaft, the core being configured to move independently of the diaphragm;
- and
- an elastic member placed on the support shaft to elastically support the core, the elastic member having elastic restoration force less than that of the coil springs.
8 more elements
A water-level/vibration detection apparatus comprising:
- a housing having an air inlet and a sealed compression chamber communicating with the air inlet;
- a bobbin, on an outer circumference of which a coil to create a resonance circuit is supported;
- an expandable bellows forming one side of the compression chamber;
- a diaphragm coupled to the bellows and having a support shaft to be moved in the bobbin based on a change in pressure within the compression chamber;
- coil springs supported respectively at opposite ends of the diaphragm to enable linear movement of the diaphragm;
- a core placed on an outer surface of the support shaft so as to be slidably moved on the support shaft when external force is applied to the housing, the core being configured to move independently of the diaphragm;
- and
- an elastic member placed on the support shaft to return the core moved by the external force to an original position thereof, the elastic member having elastic restoration force less than that of the coil springs.
5 more elements
Dependencies are inferred from the claim text.