EP3471584A1 - Cuiseur électrique - Google Patents

Cuiseur électrique

Info

Publication number
EP3471584A1
EP3471584A1 EP17732058.7A EP17732058A EP3471584A1 EP 3471584 A1 EP3471584 A1 EP 3471584A1 EP 17732058 A EP17732058 A EP 17732058A EP 3471584 A1 EP3471584 A1 EP 3471584A1
Authority
EP
European Patent Office
Prior art keywords
spill detection
detection electrode
spill
insulated housing
electric cooker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17732058.7A
Other languages
German (de)
English (en)
Inventor
Chao Ma
Hua Lu
Jean-Marie Bourgeois-Jacquet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEB SA
Original Assignee
SEB SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP3471584A1 publication Critical patent/EP3471584A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam

Definitions

  • the present invention relates to the field of cooking equipment and in particular to an electric cooker.
  • Electric cookers for steaming rice such as electric rice cookers of the prior art, are equipped with an internal pot, which is in turn equipped with a steamer. Rice is placed within the steamer and water is contained within the internal pot. By heating the internal pot, water within the pot is brought to boil and boiling water then enters the steamer to wash the rice. When water level falls below the steamer, rice and water will be separated. Heating is then continued, and the steam produced is used to cook the rice through steaming. As part of the sugar content of the rice is washed into the rice soup by the water, the cooked rice will have low GI (Glycemic Index).
  • the object of the present invention is to provide an electric cooker that can overcome the current problems of potential safety hazards and compromise in taste of cooked rice caused by the vigorous boiling of water in the internal pot.
  • the present invention provides an electric cooker that comprises an internal pot; a steamer housed within the internal pot, and the bottom of the steamer has an open structure that extends towards the bottom wall and/or side wall of the internal pot, the steamer comprises a water permeable area and a bearing cavity positioned above said water permeable area, an open top space formed by said open structure is interconnected with the bearing cavity through the water permeable area, a separating cavity exists between the exterior wall of the steamer and the interior wall of the internal pot, and this separating cavity is interconnected with the bearing cavity through the open top space; a spill detection unit that is used for detecting the water level in the bearing cavity, and which has its detection end connected with the bearing cavity.
  • top of the steamer can be connected to the mouth of the internal pot through a sealed connection.
  • the electric cooker also comprises an external housing which holds the internal pot; a top cover that is positioned on the external housing, and which is connected to the first end of the spill detection unit, and the second end of the spill detection unit extends towards the base of the internal pot.
  • the spill detection unit is at least one probe selected from the group comprising a spill detection probe, temperature probe, water level detector, infrared probe and ultrasound probe.
  • the spill detection unit comprises: an insulated housing; a first spill detection electrode, which is positioned on the insulated housing; a second spill detection electrode, which is positioned on the insulated housing, and the detection ends of the first and second spill detection electrodes are positioned at different locations along the height of the bearing cavity, such that there is a difference in height between the two electrodes.
  • the first end of the insulated housing is connected with the top cover, and the second end of the insulated housing extends towards the bottom wall of the internal pot.
  • the insulated housing has a hollow cavity that extends from the first end to the second end of the insulated housing along its length; the first spill detection electrode takes the shape of a rode and is positioned within said hollow cavity, and the detection end of this first spill detection electrode extends outwards from the second end of the insulated housing; the detection end of the second spill detection electrode is positioned on the side wall of the insulated housing, and the detection ends of the first and second spill detection electrode are positioned at different locations along the height of the bearing cavity, such that there is a height difference of H I between the two electrodes.
  • this height difference H I is at least 1 millimetre and at most 50 millimetres. Further, H I is at least 3 millimetre and at most 30 millimetres.
  • the first end of the insulated housing is connected with the top cover, and the second end of the insulated housing extends towards the bottom wall of the internal pot.
  • the insulated housing has a hollow cavity that extends from the first end to the second end of the insulated housing along its length;
  • the first spill detection electrode takes the shape of a rode and is positioned within said hollow cavity, and the detection end of this first spill detection electrode extends outwards from the second end of the insulated housing;
  • the detection end of the second spill detection electrode is positioned on the side wall of the insulated housing, and the detection ends of the first and second spill detection electrode are positioned at different locations along the height of the bearing cavity, such that there is a height difference of H2 between the two electrodes;
  • the spill detection unit further comprises: a third spill detection electrode with its detection end positioned on the side wall of the insulated housing.
  • the detection end of the second spill detection electrode is positioned in between the detection ends of the first and third spill detection electrodes, and there is a height difference of H3 between the
  • H2 is at least 1 millimetre and at most 30 millimetres
  • H3 is at least 1 millimetre and at most 40 millimetres.
  • the spill detection unit also comprises a fourth spill detection electrode which is positioned on the side wall of said insulated housing. The detection end of the third spill detection electrode is positioned between the detection ends of the second and fourth spill detection electrodes, and there is a height difference of H4 between the detection ends of the third and fourth spill detection electrodes along the height of the bearing cavity.
  • H4 is at least 1 millimetre and at most 40 millimetres.
  • H4 is at least 3 millimetres and at most 25 millimetres.
  • the fourth spill detection electrode is a plurality of electrodes, and the detection ends of this plurality of fourth spill detection electrodes are placed at intervals away from the first spill detection electrode.
  • H5 there is a height difference of H5 between two adjacent detection ends of the fourth spill detection electrodes, and H5 is equal to H4.
  • a steamer is housed within the internal pot, and the bottom of the steamer has an open structure that extends towards the bottom wall and/or side wall of the internal pot.
  • the steamer comprises a water permeable area and a bearing cavity positioned above said water permeable area.
  • An open top space formed by said open structure is interconnected with the bearing cavity through the water permeable area, and a separating cavity exists between the exterior wall of the steamer and the interior wall of the internal pot. This separating cavity is interconnected with the bearing cavity through the open top space.
  • the detection end of the spill detection unit that is used for detecting the water level in the bearing cavity is connected with the bearing cavity.
  • the water level in the bearing cavity can be effectively detected through the spill detection unit.
  • the operation of the heating element is stopped or its power is reduced, so as to lower the water level and prevent spillage.
  • heating of the heating element is resumed to ensure that the rice in the bearing cavity comes into adequate contact with water and thereby absorb a sufficient amount of water.
  • the rice washing and cooking step is completed in cycles.
  • the electric cooker can automatically subject the rice to washing and water absorption, as well as complete the cooking of the rice in the bearing cavity through boiling followed by steaming.
  • the cooker is hence able to produce cooked rice with low GI and improved taste and nutritional value, which generates a higher level of satisfaction among the users.
  • the electric cooker of this new invention has strengths such as providing multiple functions, high level of automation and good usability.
  • FIG. 1 is a schematic view of the structure of an electric cooker according to an optional embodiment of the present invention.
  • FIG. 2 depicts the relative positions of the internal pot, steamer and spill detection unit in FIG. 1 before the rice comes into contact with water
  • FIG. 3 depicts the relative positions of the internal pot, steamer and spill detection unit in FIG. 1 when water comes into contact with the rice and spill detection unit;
  • FIG. 4 is a schematic view of the structure of an electric cooker according to another optional embodiment of the present invention.
  • FIG. 5 shows a partial enlarged view of area P in FIG. 4.
  • FIG. 6 is a schematic view of the structure of the spill detection unit according to another optional embodiment of the present invention.
  • FIG. 7 is a schematic view of the structure of the spill detection unit according to another optional embodiment of the present invention.
  • orientation or direction such as “up, down, top or bottom” are not intended to be absolute terms unless the context requires or indicates otherwise. These terms will normally refer to orientations shown in the drawings. Similarly, to facilitate understanding and description, “internal” and “external” refer to a positioning with respect to the boundary of the part itself. The above terms are not intended to restrict the scope of this invention.
  • the present invention provides an electric cooker that can overcome the current problems of potential safety hazards and compromise in taste of cooked rice caused by the vigorous boiling of water in the internal pot.
  • the electric cooker comprises internal pot 1 0; steamer 20 housed within internal pot 10; spill detection unit 40 for detecting the water level in bearing cavity 23.
  • the bottom of steamer 20 has an open structure 2 1 that extends towards the bottom wall and/or side wall of internal pot 10.
  • Steamer 20 comprises water permeable area 22 and bearing cavity 23, which is positioned above water permeable area 22.
  • the open top space 21 1 formed by open structure 21 is interconnected with bearing cavity 23 through water permeable area 22.
  • a separating cavity 30 exists between the exterior wall of steamer 20 and the interior wall of internal pot 10. Separating cavity 30 is interconnected with bearing cavity 23 through open top space 21 1 .
  • Spill detection unit 40 has its detection end connected with the bearing cavity 23.
  • the electric cooker can automatically subject the rice to washing and water absorption, as well as complete the cooking of the rice in bearing cavity 23 through boiling followed by steaming.
  • the cooker is hence able to produce cooked rice with low GI and improved taste and nutritional value, which generates a higher level of satisfaction among the users.
  • the electric cooker according to the present invention has strengths such as providing multiple functions, high level of automation and good usability.
  • the electric cooker can be an electric rice cooker, pressure cooker, or general cooker, etc.
  • the electric cooker according to the present invention can also be a microwave oven, which is equipped with internal pot 10 and steamer 20.
  • the top of steamer 20 is connected to the mouth of internal pot 1 0 in a sealed connection. This effectively ensures that when pressure within separating cavity 30 rises, steam pushes the water smoothly through open structure 21 into bearing cavity 23, and steam is prevented from escaping through the top of steamer 20 and the mouth of internal pot 10.
  • first sealing ring 70 As shown in FIG. 1 , the top of steamer 20 and the mouth of internal pot 10 are sealed using first sealing ring 70.
  • the electric cooker further comprises external housing 50 and top cover 60, and internal pot 1 0 is housed within the external housing 50; top cover 60 is positioned on external housing 50, and the first end of spill detection unit 40 is connected with top cover 60, and the second end of spill detection unit 40 extends towards the base of internal pot 10.
  • the second end of spill detection unit 40 is the detection end. In this way, when the water level within bearing cavity 23 gradually rises, it will come into contact with the detection end of spill detection unit 40, and a spill-prevention signal will be sent by spill detection unit 40 to stop the heating of the heating element.
  • the heating element is a heating device selected from the group comprising a heating plate, heating tube, IH electromagnetic heating device and heating film.
  • spill detection unit 40 is at least one probe selected from the group comprising a spill detection probe, temperature probe, water level detector, infrared probe and ultrasound probe. This means that in addition to the probes and detectors listed above, any sensor that can detect water level or the rise in water level may also be used as spill detection unit 40.
  • spill detection unit 40 comprises insulated housing 41 , first spill detection electrode 42 and second spill detection electrode 43.
  • First spill detection electrode 42 is positioned on insulated housing 41 .
  • Second spill detection electrode 43 is also positioned on insulated housing 41 .
  • first spill detection electrode 42 and second spill detection electrode 43 are positioned at different locations along the height of bearing cavity 23 , such that there is a difference in height between the two electrodes.
  • the medium in the form of rice milk, will power both electrodes up upon contact, and trigger the sending of spill prevention signals to stop the heating of the heating element or to reduce the power with which it is being heated.
  • first end of insulated housing 41 is connected with top cover 60, and the second end of insulated housing 41 extends towards the bottom wall of internal pot 10.
  • the insulated housing 41 has a hollow cavity that extends from the first end to the second end of insulated housing 41 along its length.
  • First spill detection electrode 42 takes the shape of a rode and is positioned within said hollow cavity.
  • the detection end of first spill detection electrode 42 extends outwards from the second end of insulated housing 41 .
  • the detection end of second spill detection electrode 43 is positioned on the side wall of insulated housing 41 .
  • the detection ends of the first spill detection electrode 42 and second spill detection electrode 43 are positioned at different locations along the height of bearing cavity 23, such that there is a height difference of H I between the two electrodes.
  • insulated housing 41 acts as a base for integrating both spill detection electrodes into one unit, and ensures that a height difference of H I exists between the electrodes.
  • Insulated housing 41 provides a certain amount of coverage to first spill prevention electrode 42.
  • This first spill prevention electrode 42 is made of a metallic material and can be in the shape of a ring or other shapes.
  • the range of the height difference H I was optimized through repeated experiments, based on considerations on the operational efficiency of the electric cooker, its operational safety, taste of the cooked food and other factors.
  • H I is at least 1 millimetre and at most 50 millimetres.
  • H I is at least 3 millimetres and at most 30 millimetres.
  • spill detection unit 40 further comprises a third spill detection electrode 44.
  • the first end of insulated housing 41 is connected with top cover 60, and the second end of insulated housing 41 extends towards the bottom wall of internal pot 10.
  • Insulated housing 41 has a hollow cavity that extends from the first end to the second end of insulated housing 41 along its length.
  • First spill detection electrode 42 takes the shape of a rode and is positioned within said hollow cavity, and the detection end of first spill detection electrode 42 extends outwards from the second end of insulated housing 41 .
  • the detection end of second spill detection electrode 43 is positioned on the side wall of insulated housing 41 , and the detection ends of the first spill detection electrode 42 and second spill detection electrode 43 are positioned at different locations along the height of bearing cavity 23, such that there is a height difference of H2 between the two electrodes.
  • the detection end of third spill detection electrode 44 is positioned on the side wall of insulated housing 41 .
  • the detection end of second spill detection electrode 43 is positioned in between the detection ends of first spill detection electrode 42 and third spill detection electrode 44, and there is a height difference of H3 between the detection ends of the second spill detection electrode 43 and third spill detection electrode 44 along the height of bearing cavity 23.
  • the working principle is similar to that of the spill detection unit 40 that is equipped with two spill detection electrodes. More control features are available with the use of three spill detection electrodes.
  • first spill detection electrode 42, second spill detection electrode 43 and third spill detection electrode 44 are all collected on insulated housing 41 . Further, insulated housing 41 provides a certain amount of coverage to first spill detection electrode 42, second spill detection electrode 43 and third spill detection electrode 44, to ensure that the electrodes do not detach easily. At this time, through the use of a combination of three spill detection electrodes, temperature and water level can be monitored so as to control the electric cooker through stopping the heating or reducing the power of the heating element, and other mechanisms. For example, first spill detection electrode 42 can be used to prevent spillage, and second spill detection electrode 43 and third spill detection electrode 44 can be used to detect water level and other information.
  • First spill detection electrode 42 and second spill detection electrode 43 can be used together to monitor if the water level within bearing cavity 23 has risen to a specified height; first spill detection electrode 42 and third spill detection electrode 44 can be used together to prevent spillage.
  • the ranges of the height differences H2 and H3 were optimized through repeated experiments, based on considerations on the operational efficiency of the electric cooker, its operational safety, taste of cooked food and other factors.
  • H2 is at least 1 millimetre and at most 30 millimetres
  • H3 is at least 1 millimetre and at most 40 millimetres.
  • H2 is at least 3 millimetres and at most 1 5 millimetres
  • H3 is at least 3 millimetres and at most 25 millimetres.
  • spill detection unit 40 further comprises fourth spill detection electrode 45 , and fourth spill detection electrode 45 is positioned on the side wall of insulated housing 41 .
  • the detection end of third spill detection electrode 44 is positioned between the detection ends of fourth spill detection electrode 45 and second spill detection electrode 43, and there is a height difference of H4 between the detection ends of the third spill detection electrode 44 and fourth spill detection electrode 45 along the height of bearing cavity 23.
  • the difference between this embodiment and that illustrated in FIG. 6 is that there is an additional fourth spill detection electrode 45 in this embodiment. In this way, more control features can be further realized.
  • first spill detection electrode 42, second spill detection electrode 43, third spill detection electrode 44, and fourth spill detection electrode 45 are all collected on insulated housing 41 .
  • insulated housing 41 provides a certain amount of coverage to first spill detection electrode 42, second spill detection electrode 43 , third spill detection electrode 44, and fourth spill detection electrode 45 to ensure that the electrodes do not detach easily. At this time, through the use of a combination of four spill detection electrodes, water level can be monitored so as to control the electric cooker through stopping the heating or reducing the power of the heating element, and other mechanisms.
  • the range of the height difference H4 was optimized through repeated experiments, based on considerations on the operational efficiency of the electric cooker, its operational safety, taste of cooked food and other factors.
  • H4 is at least 1 millimetre and at most 40 millimetres.
  • H4 is at least 3 millimetres and at most 25 millimetres.
  • fourth spill detection electrode 45 is a plurality of electrodes, and the detection ends of this plurality of fourth spill detection electrodes 45 are placed at intervals away from first spill detection electrode 42. In this way, any two adjacent fourth spill detection electrodes 45 will have consistent gradient changes, which facilitates processing, manufacturing and realization of the control features.
  • the height difference H5 between two adjacent detection ends of the fourth spill detection electrodes 45 is equal to H4.
  • H5 need not necessarily be equal to H4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)

Abstract

La présente invention concerne un cuiseur électrique comprenant un pot interne (10) ; un cuiseur à vapeur (20) logé à l'intérieur du pot interne (10), et le fond du cuiseur à vapeur a une structure ouverte (21) qui s'étend vers la paroi inférieure et/ou la paroi latérale du pot interne (10), le cuiseur à vapeur (20) comprend une zone perméable à l'eau (22) et une cavité de support (23) positionnée au-dessus de ladite zone perméable à l'eau, un espace supérieur ouvert (211) formé par ladite structure ouverte est interconnecté à la cavité de support (23) à travers la zone perméable à l'eau (22), une cavité de séparation (30) existe entre la paroi extérieure du cuiseur à vapeur (20) et la paroi intérieure du pot interne (10), et cette cavité de séparation (30) est interconnectée à la cavité de support (23) à travers l'espace supérieur ouvert (211) ; une unité de détection de débordement (40) qui est utilisée pour détecter le niveau d'eau dans la cavité de palier (23), et dont l'extrémité de détection est reliée à la cavité de palier. La présente invention surmonte les problèmes associés aux fours de la technique, tels que les risques de sécurité potentiels et le goût du riz cuit provoqué par l'ébullition vigoureuse de l'eau dans le pot interne.
EP17732058.7A 2016-06-15 2017-06-14 Cuiseur électrique Withdrawn EP3471584A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201620589636.9U CN206006892U (zh) 2016-06-15 2016-06-15 电炊具
PCT/EP2017/064647 WO2017216276A1 (fr) 2016-06-15 2017-06-14 Cuiseur électrique

Publications (1)

Publication Number Publication Date
EP3471584A1 true EP3471584A1 (fr) 2019-04-24

Family

ID=58241906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17732058.7A Withdrawn EP3471584A1 (fr) 2016-06-15 2017-06-14 Cuiseur électrique

Country Status (5)

Country Link
EP (1) EP3471584A1 (fr)
CN (1) CN206006892U (fr)
AU (1) AU2017286363A1 (fr)
CA (1) CA3027451A1 (fr)
WO (1) WO2017216276A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110432762B (zh) * 2018-05-03 2021-11-02 佛山市顺德区美的电热电器制造有限公司 烹饪装置的控制方法、系统、计算机设备及存储介质
CN110960077B (zh) * 2018-09-30 2021-07-20 佛山市顺德区美的电热电器制造有限公司 烹饪器具及其控制方法
CN112006518B (zh) * 2019-05-31 2021-09-21 佛山市顺德区美的电热电器制造有限公司 烹饪器具及其烹饪控制方法和装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102805552A (zh) * 2012-09-01 2012-12-05 广东伊立浦电器股份有限公司 基于饭煲烹饪荞米的方法
CN104510325B (zh) * 2013-10-08 2017-11-10 美的集团股份有限公司 电饭煲及其控制方法
CN203914529U (zh) * 2014-04-09 2014-11-05 浙江绍兴苏泊尔生活电器有限公司 电磁炉用锅具
CN204245902U (zh) * 2014-11-28 2015-04-08 佛山市顺德区美的电热电器制造有限公司 烹饪器具
CN204600222U (zh) * 2015-04-13 2015-09-02 佛山市顺德区美的电热电器制造有限公司 内锅及烹饪器具

Also Published As

Publication number Publication date
AU2017286363A1 (en) 2019-02-07
WO2017216276A1 (fr) 2017-12-21
CA3027451A1 (fr) 2017-12-21
CN206006892U (zh) 2017-03-15

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