A PRESSURE COOKING DEVICE
A pressure cooking device ( 10, 100 ) for cooking food materials ( 80 ), comprising: a sealed cooking chamber ( 20 ) arranged to accommodate food materials ( 80 ); a steam supplying unit ( 30, 130 ) arranged to supply steam to the sealed cooking chamber ( 20 ); and a steam channel ( 40 ) arranged to interconnect the steam supplying unit ( 30, 130 ) and the sealed cooking chamber ( 20 ); wherein the pressure cooking device ( 10, 100 ) further comprises a control unit ( 11 ) adapted to control the cooking process based on the liquid water content and/or the humidity in the sealed cooking chamber ( 20 ). By virtue of this invention, the liquid water content and/or the humidity in the sealed cooking chamber ( 20 ) could be adjusted conveniently.
1 . A pressure cooking device ( 10 , 100 ) for cooking food materials ( 80 ), comprising:
a sealed cooking chamber ( 20 ) arranged to accommodate food materials ( 80 );
a steam supplying unit ( 30 , 130 ) arranged to supply steam to the sealed cooking chamber ( 20 ); and
a steam channel ( 40 ) arranged to interconnect the steam supplying unit ( 30 , 130 ) and the sealed cooking chamber ( 20 );
wherein the pressure cooking device ( 10 , 100 ) further comprises a control unit ( 11 ) adapted to control the cooking process based on the liquid water content and/or the humidity in the sealed cooking chamber ( 20 ).
2 . The pressure cooking device ( 10 , 100 ) according to claim 1 , which further comprises a first heater ( 51 ) adapted to heat the sealed cooking chamber ( 20 ) under the control of the control unit ( 11 ) based on the liquid water content and/or the humidity in the sealed cooking chamber ( 20 ).
3 . The pressure cooking device ( 10 , 100 ) according to claim 1 , which further comprises a cooling element ( 52 ) adapted to cool down the sealed cooking chamber ( 20 ) or a water filler adapted to fill liquid water into the sealed cooking chamber ( 20 ) under the control of the control unit ( 11 ) based on the liquid water content and/or the humidity in the sealed cooking chamber ( 20 ).
4 . The pressure cooking device ( 10 , 100 ) according to claim 1 , wherein the steam supplying unit ( 30 , 130 ) comprises a heating element ( 31 , 34 , 131 ) adapted to adjust the status of the steam introduced into the cooking chamber ( 20 ) under the control of the control unit ( 11 ) based on the liquid water content and/or the humidity in the sealed cooking chamber ( 20 ).
5 . The pressure cooking device ( 10 , 100 ) according to claim 1 , which further comprises a drainage channel ( 152 ) adapted to drain out the accumulated liquid water under the control of the control unit ( 11 ) based on the liquid water content in the sealed cooking chamber ( 20 ).
6 . The pressure cooking device ( 10 , 100 ) according to claim 5 , wherein a buffer space ( 153 ) is arranged in the middle of the drainage channel ( 152 ).
7 . The pressure cooking device ( 10 , 100 ) according to claim 1 , wherein the temperature in the sealed cooking chamber ( 20 ) is set above the dew point temperature of the steam contained therein.
8 . The pressure cooking device ( 10 , 100 ) according to claim 1 , which further comprises a sensing unit ( 16 , 17 , 116 ) adapted to indicate the amount of liquid water and/or the humidity in the sealed cooking chamber ( 20 ).
9 . The pressure cooking device ( 10 , 100 ) according to claim 1 , wherein the steam supplying unit ( 30 ) comprises a connection to an independent steam source or a steam generation element.
10 . The pressure cooking device ( 10 , 100 ) according to claim 1 , which further comprises a valve ( 41 ) arranged in the steam channel ( 40 ) to control the supply of steam.
11 . The pressure cooking device ( 10 , 100 ) according to claim 10 , wherein the steam supplying unit ( 30 ) is arranged to pre-heat steam before cooking.
12 . The pressure cooking device ( 10 , 100 ) according to claim 1 , further comprising:
a second sealed cooking chamber adapted to accommodate food materials;
a steam switch arranged to switch the supply of steam from the steam supplying unit ( 30 , 130 ) to the sealed cooking chamber ( 20 ) and/or the second sealed cooking chamber.
13 . A cooking method with a pressure cooking device ( 10 , 100 ) comprising a sealed cooking chamber ( 20 ) arranged to accommodate food materials ( 80 ); a steam supplying unit ( 30 , 130 ) arranged to supply steam to the sealed cooking chamber ( 20 ); and a steam channel ( 40 ) arranged to interconnect the steam supplying unit ( 30 , 130 ) and the sealed cooking chamber ( 20 );
comprises:
supplying steam from the steam supplying unit ( 30 , 130 ) to the sealed cooking chamber ( 20 );
sensing the humidity and/or the liquid water content in the sealed cooking chamber ( 20 );
controlling the cooking process based on the humidity and/or the liquid water content in the sealed cooking chamber ( 20 ).
14 . A cooking method according to claim 13 , comprising:
heating or cooling the sealed cooking chamber ( 20 ) based on the humidity and/or the liquid water content in the sealed cooking chamber ( 20 ).
15 . A cooking method according to claim 13 , comprising:
adjusting the status of the steam introduced into the cooking chamber ( 20 ) by a heating element in the steam supplying unit ( 30 , 130 ).