Linen treatment device with imbalance monitoring, level monitoring or load monitoring
View Patent ↗An acceleration sensor for a household device which serves for leveling the appliance and also for weighing the material introduced into the appliance, for example on a laundry unit or crockery and furthermore, in particular for a linen treatment device, for monitoring imbalances. The sensor is based on the principle that a temperature profile, generated by a thermal source, for example, an immersion heater in a sealed chamber which contains a gas, undergoes a displacement as a result of the acceleration, which is measured by temperature sensors arranged on a flat plate.
1. A household appliance comprising:
at least one sensor that measures a temperature profile of a heating device integrated in the sensor,
wherein the temperature profile changes based on an acceleration of the household appliance caused by an imbalance or loading of the household appliance,
wherein the temperature profile changes based on a position of the household appliance relative to a direction of a vector of acceleration due to gravity, and
wherein the at least one sensor outputs a sensor signal for leveling the household appliance; and
a display connected to the at least one sensor that receives the sensor signal and displays instructions on an adjustment of the household appliance,
wherein the display displays a deviation of the household appliance from a horizontal position.
2. The household appliance according to claim 1 , wherein the display displays a centering cross when the horizontal position of the household appliance is completely level.
3. The household appliance according to claim 1 ,
wherein the household appliance includes a plurality of feet, and
wherein the display shows which of the plurality of feet of the household appliance need to be adjusted in height.
4. The household appliance according to claim 1 ,
wherein the at least one sensor comprises four sensors, and
wherein each one of the four sensors is assigned to a corner of the household appliance.
5. The household appliance according to claim 1 , wherein the display is one of:
on the household appliance, and
coupled to the household appliance by one of an electrical connection and a radio connection.
6. The household appliance according to claim 1 , comprising:
a plurality of positioning motors that adjust a height of the household appliance based on the sensor signal.
7. The household appliance according to claim 1 , comprising:
one of a pneumatic pressure line system and a hydraulic pressure line system that adjusts a height of the household appliance based on the sensor signal.
8. The household appliance according to claim 1 ,
wherein the household appliance includes one of a damper and a foot, and
wherein the one of the damper and the foot includes the at least one sensor.
9. The household appliance according to claim 1 , comprising:
a measuring device that determines a weight of an item introduced into the household appliance based on the sensor signal output by the at least one sensor.
10. The household appliance according to claim 1 , wherein the household appliance is a cooking appliance,
wherein the cooking appliance comprises:
a frame;
a sheet-metal guide frame suspended from the frame of the cooking appliance by a plurality of springs such that the sheet-metal guide frame is moveable vertically within the cooking appliance, and
wherein the temperature profile of the at least one sensor changes based on a vertical position of the sheet-metal guide frame within the cooking appliance.
11. The household appliance according to claim 1 ,
wherein the household appliance is a linen treatment device having a soapy water container, and
wherein the at least one sensor is disposed on the soapy water container.
12. The household appliance according to claim 11 , comprising:
a warning device that emits a warning signal when the linen treatment device is overloaded.
13. The household appliance according to claim 1 ,
wherein the household appliance is a linen treatment device having a soapy water container,
wherein the household appliance includes a lever device coupled to the soapy water container, and
wherein the sensor is coupled to the lever device.