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WO2008138268A1 - Bouilloire/grille-pain combinés et bouilloire électrique sans cordon - Google Patents

Bouilloire/grille-pain combinés et bouilloire électrique sans cordon Download PDF

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Publication number
WO2008138268A1
WO2008138268A1 PCT/CN2008/070933 CN2008070933W WO2008138268A1 WO 2008138268 A1 WO2008138268 A1 WO 2008138268A1 CN 2008070933 W CN2008070933 W CN 2008070933W WO 2008138268 A1 WO2008138268 A1 WO 2008138268A1
Authority
WO
WIPO (PCT)
Prior art keywords
kettle
toaster
steam
cordless
sensor
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.)
Ceased
Application number
PCT/CN2008/070933
Other languages
English (en)
Inventor
Shufen Yang
Kwanpui Law
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.)
LEDOR Ltd
Original Assignee
LEDOR Ltd
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 LEDOR Ltd filed Critical LEDOR Ltd
Publication of WO2008138268A1 publication Critical patent/WO2008138268A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • A47J27/21—Water-boiling vessels, e.g. kettles
    • A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
    • A47J27/2105—Water-boiling vessels, e.g. kettles electrically heated of the cordless type, i.e. whereby the water vessel can be plugged into an electrically-powered base element
    • 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
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/08—Bread-toasters
    • A47J37/0871—Accessories

Definitions

  • the present invention relates to an electric kettle of cordless type, and to a combination toaster/kettle.
  • the present invention is directed at further integrating the components of the appliance.
  • a combination kettle/toaster comprising a toaster having a main body provided with at least one cavity for receiving a foodstuff to be toasted, an electric kettle having a water-carrying vessel, a cordless power-supplying base for the kettle joined to or integrated with the toaster main body, an electrical connector having first and second cooperating parts arranged respectively on the kettle and the cordless power-supplying base, control means provided on the toaster for controlling the operation of toaster and kettle, wherein a sensor for detecting boiling of the kettle is provided on the toaster main body or cordless base.
  • the sensor may take a variety of forms being a thermistor, or alternatively an infra-red sensor or thermocouple, or a vibration-detecting sensor.
  • the senor may be arranged to detect steam from the boiling kettle with the main toaster body configured to include a steam-receiving portion arranged at an upper region thereof which faces a spout of the kettle, said sensor being positioned in said steam-receiving portion.
  • the cordless base may be provided with a steam-receiving portion, the kettle being provided with an internal steam duct to direct steam from the interior of the water-carrying vessel to a steam opening which faces said steam- receiving portion in said cordless base, said sensor being provided in said steam-receiving portion.
  • the connector between kettle and base is preferably of a type exhibiting rotational symmetry whereby one part may pivot relative to the other and allowing interconnection over a range of angles.
  • a steam-receiving portion is provided in the base this may then take the form of an annular or part-annular groove within which is disposed at least one steam sensor, and more preferably two spaced sensors.
  • the control means is preferably adapted to supply power to both kettle and toaster so that both can be operated simultaneously, with a power sharing arrangement.
  • a further aspect of the invention is directed at improvements more generally in cordless electric kettles, although which may have particular applicability in relation to combination toaster/kettles.
  • a cordless electric kettle comprising a kettle body and cordless power-supplying base, wherein the cordless base comprises a steam-receiving portion in which is disposed a steam sensor, and wherein said kettle is provided with an internal steam duct to direct steam from the interior of the kettle body to the steam- receiving portion.
  • the steam-receiving portion may be a recess or groove in the cordless base within which the steam sensor is disposed, which is preferably annular or part-annular, particularly if the electrical connector between kettle and base is of a type exhibiting rotational symmetry, whereby kettle and body may be connected over a range of relative angles.
  • the cordless kettle may be part of a combination kettle/toaster as described above, with the cordless base being joined to or integrated with the toaster main body.
  • Figure 1 shows an embodiment of a combination electric kettle/toaster in accordance with a first aspect of the invention
  • FIG. 1 shows the kettle/toaster combination of Figure 1 with kettle removed
  • Figure 3 is an enlarged view of a cordless base part
  • Figure 4 illustrates, part-schematically, the disposition of a boiling sensor, and the main electrical circuit components
  • Figure 5 shows an alternative arrangement of a combination kettle/toaster
  • Figure 6 shows a still further alternative arrangement of combination kettle/toaster provided with a pair of toaster housings
  • FIG. 7 shows a still further arrangement of combination kettle/toaster
  • FIG. 8 shows a still further arrangement of combination kettle/toaster, employing a spout-positioned steam sensor
  • Figure 9 shows a still further arrangement of a combination kettle/toaster employing a steam sensor in the cordless base
  • Figure 10 shows a further alternative arrangement of combination kettle/toaster employing a thermal sensor
  • FIG. 11 shows a still further version of combination kettle/toaster employing a vibration sensor
  • Figure 12 is a schematic circuit diagram of the electrical components of the combination kettle/toaster
  • Figure 13 shows a cordless kettle according to a further aspect of the invention, employing a steam sensor within its cordless base;
  • Figure 14 is an enlarged view of a cordless base employed in the kettle of Figure 13;
  • Figure 15 is a view of the underside of the kettle removed from the cordless base;
  • Figure 16 is a schematic diagram illustrating the electrical components of the cordless kettle of Figure 13.
  • a first aspect of the invention resides in a combination cordless kettle/toaster with a first embodiment of such an appliance illustrated in Figures 1 to 4.
  • a combination kettle/toaster is generally indicated 1.
  • the combination kettle/toaster 1 has a kettle 2 and a toaster part 30.
  • the toaster part 30 is integrated with a cordless base 32 for the kettle 2, as discussed further below.
  • the kettle 2 comprises a body which is divided by a horizontal partition 4 into an upper water-carrying part 6, and a lower part in which is arranged a heating element 8 and other electrical control components, such as those providing dry-boil protection as is well-known to the skilled person.
  • the heating element 8 is of an underfloor type, but it will be appreciated that other types, such as immersion type elements might equally be employed.
  • a lower face of the kettle body is closed by a lower wall 10, a central region of which carries a male plug part 12 of an electrical connector 13, for providing mating electrical connection with a female socket connector part 14 disposed on the cordless base 32.
  • the connector 13 is preferably of a type which allows connection over a wide range of relative dispositions.
  • the female socket part 14 comprises an upstanding moulded component defining a series of concentric annular recesses 16, 18, 20 as more clearly seen in Figure 14. Disposed within these recesses 16, 18, 20 are respective electrical contacts 21, 22 and 23, preferably in the form of sprung terminals the position of which is indicated schematically in Figure 13.
  • the male plug part 12 comprises a moulded component which carries three concentric annular contact rings 26, 28, 29 for engaging within the recesses 16, 18, 20 respectively making electrical connection to the contacts 21, 22 and 23 as the male and female connector parts are engaged.
  • the connector 13 itself allows the male and female parts to be interconnected and swivelled over a full 360° of relative disposition; however, the structure of kettle 2 and toaster housing may limit the range of relative movement as discussed below.
  • the base 32 may include an upstanding locating ring 31 which engages a corresponding recess 33 in the underside of the kettle, facilitating accurate positioning of the kettle 2 on the base 32.
  • the toaster part 30 has an outer main housing 34 which defines a pair of elongate openings 36 for receiving bread or the like for toasting, within a conventional bread-receiving carriage.
  • a user accessible knob 38 is provided for moving the carriage into a lower toasting position, as is conventional.
  • Extending from the outer main housing 34 is a platform which constitutes the cordless base 32.
  • This is structurally integrated with the toaster main housing 34, and may be a unitarily formed therewith as a single moulded part, or may be fixedly secured thereto .
  • the toaster main housing 34 is arranged directly adjacent the cordless base 32 the kettle 2, when fitted, being received adjacent a curved region 40 of the housing. In consequence the kettle cannot be fitted on the base over a full range of 360°, but there is an angular region of about 90° where the kettle handle would interfere with the curved region 40 of the main housing 34.
  • the embodiment illustrated in Figures 1 to 4 employs an electronic boiling sensor 48 arranged in the curved region 40 of the toaster main housing 34 so as to be close to the outer wall of the kettle body, as best seen in Figure 4.
  • the sensor 48 may take a variety of forms able to respond to temperature of water in the kettle. Sensors such as thermistors or thermocouples may be used, with the requirement that the sensor must touch the kettle wall. Alternatively, an infra-red sensor might be used, which need not actually contact the kettle wall but may be closely spaced therefrom.
  • the main housing 34 carries appropriate electrical or electronic controls for the kettle 2 and toaster 30 including a central controller 49 which has processing capability to control the kettle and toaster functions in response to various inputs, including sensor signals and user-activated on/off switches, and other possible user controls for example keep warm functions. These functions are activated by user- operated buttons 42, and rotary knob 44 in the case of the toaster 30 and user-operated button 46 which controls the kettle function. Visual indicators may indicate to a user the operational status of the kettle by means of individual LED's or by a display of LED or LCD type.
  • the electronic components are mounted on one or more printed circuit boards (PCB) 45.
  • the toaster 30 is connected to a source of external electrical power such as mains power supply, via a single cable and plug 47. Disposed between the input of the mains power and the connector part 14 there is a power interrupt device 50.
  • PCB printed circuit boards
  • the controller On receipt of a signal from the sensor 48 indicative of a temperature indicating a boiling condition, the controller controls the power interrupt device 50 to interrupt one or more of the live or neutral electrical lines, interrupting the supply of power to the kettle element, until re-setting by a user.
  • the controller 49 intercepts the power supply to both kettle 2 and toaster 30.
  • the controller 49 may be programmed to effect a power sharing control between kettle 2 and toaster 30 so that both may be operated simultaneously, if so desired.
  • the circuit is configured whereby if the kettle is lifted off the base, so that no current is drawn, the controller goes through a re-set, whereby power to the connector 13 can only be resumed by the user switching the kettle back on with the main on/off switch 46.
  • the same may apply if the dry boil switch or switches in the kettle activate.
  • the action of switching on boiling can start a pre-set or user-selectable keep warm cycle, can activate one or more of the LED's to indicate that boiling is complete, and that another cycle has started, or provide an audible indication such as by means of a buzzer, whistle, music or other sound.
  • Figure 5 shows an alternative arrangement of combination kettle/toaster with a kettle of greater capacity, and where the toaster has its toast-receiving openings 36 arranged in parallel besides the kettle.
  • the structure of this embodiment is identical to that of Figures 1 to 4.
  • FIG 6 shows a further alternative embodiment where a pair of toasters are disposed on opposite sides of a kettle-receiving base.
  • One of the toasters (the right-hand side, as illustrated) indicated 34 is provided with the controls 46 for the kettle as well as controls for that toaster, including an electric sensor as desired above.
  • the other toaster, indicated 35 may be provided with controls 43 only for that toaster.
  • Figure 7 shows a further alternative arrangement where the toaster has a single elongate toasting slot 36.
  • This structure is particularly useful for toasting thicker or longer slices of bread, muffins or crumpets or may toast two slices in an in-line disposition.
  • FIG 8 shows an alternative arrangement where a different sensor arrangement is used, but in other respects is identical to the structure of Figures 1 to 4.
  • the toaster housing 34 is provided with a steam sensing station 52 which includes a formation protruding from the toaster housing 34 which faces a spout of the kettle 2 when the kettle 2 is fitted on the cordless base 32.
  • the steam sensing station 52 includes a steam sensor 54 which may take a variety of forms, such as a thermistor, infra ⁇ red detector or mechanical type element such as a conventional bimetal. It may also be arranged that a visual indicator is provided such as an LED 56 which changes colour in response to a signal from the controller, following detection by sensor 54 of boiling.
  • the kettle body carries an internal steam duct 58, an upper end 60 of which opens into the water-carrying part 6 at an upper region thereof.
  • the duct 58 extends downwardly through the element-carrying partition 4 to the lower kettle body wall 10 emerging at opening 62 on the underside of the lower body wall 10.
  • the cordless base part 32 is provided with an annular or part- annular channel 64 for receiving steam from the steam duct 58, within which are arranged one or more steam sensors 66. It is preferably arranged that the mouth of the steam duct opening 62 makes close engagement with the steam channel 64 in the base 32, facing directly into the channel 64. It may also be arranged that the channel 64 has a slightly upstanding lip which reduces the clearance between opening 62 and channel 64 to minimize or at least controllably limit the escape of steam.
  • the channel 64 dimension should also be selected so as to not require an overly large volume of steam for operation, which would reduce response time, nor should it be too small whereby a large surface area to volume ratio would result, which would increase condensation.
  • the base channel 64 is also provided with appropriate means for removing condensed water from the channel, in the form of drainage openings and appropriate internal channels (not illustrated) arranged to direct condensed water safely away from the channel 64 and externally of the base, without coming into contact with any of the electrical contacts or other electrical or electronic components.
  • the steam sensor or sensors 66 may take a variety of forms, such as a thermistor or thermocouple, or other kind of semiconductor device whose properties change with temperature.
  • a simple bimetal-type sensing device can be used where the ingress of the steam causes the bimetal to change shape with a snap- action, acting on a user-resettable mechanism which serves to break an electrical contact pair.
  • a variety of sensor types are found to operate effectively, with a range of switching temperatures also being effective, for example temperatures in the range 60 0 C to 85°C are found particularly effective.
  • the base channel 64 extends through an arc of about 270°, being absent from the portion adjacent the upstanding toaster housing 34 within which the steam duct opening 62 cannot travel owing to interference of the kettle handle with this upstanding part.
  • the base channel extends through 360°.
  • a single sensor 66 may be employed, it is preferred that two (or more) sensors are arranged within the base channel 64 spaced by a significant angular separation, thereby reducing the maximum distance between steam duct opening 62 and sensors 64 and shortening the switching response time.
  • FIG 10 illustrates a still further embodiment of a combination kettle/toaster.
  • This embodiment is similar to the first embodiment of Figure 1 with the difference that the sensor is a thermal sensor 68 which directly abuts the outer wall of the kettle body.
  • the thermal sensor 68 is connected to the controller, providing a signal indicative of sensed temperature, which is utilized by the controller as an indication of boiling, the power interrupt device 50 being activated when a predetermined temperature is indicated, to interrupt power supply to the kettle until re-setting by the user.
  • a visual indicator such as an LED 70 may be positioned on the toaster housing close to the sensor 68, also connected to the controller. It may be arranged that the LED 70 activates or changes colour when the water has boiled, providing a useful indication of boiling to the user.
  • FIG 11 illustrates a still further embodiment of a combination kettle/toaster.
  • This embodiment is similar to the first embodiment of Figure 1 with the difference that the sensor is a vibration-sensitive device 72 which is able to detect the vibration caused as the water starts to boil, providing a signal to the controller on boiling.
  • the controller On receipt of the signal indicative of boiling, the controller arranges the power interrupt device 50 to interrupt the power supplied to the kettle 2, until resetting by the user.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

L'invention concerne une bouilloire/grille pain combinés (1) qui comprend un grille-pain (30) avec un corps principal comportant au moins une cavité (36) pour recevoir les aliments à griller, une bouilloire électrique (2) avec un récipient contenant de l'eau, une base d'alimentation en courant sans cordon (32) pour la bouilloire liée ou intégrée au corps principal du grille-pain, un connecteur électrique (13) avec des première et seconde parties de coopération agencées respectivement sur la bouilloire (2) et la base d'alimentation en courant sans cordon (32), un moyen de commande (49) disposé sur le grille-pain (30) pour commander le grille-pain (30) et la bouilloire (2), et un détecteur (48, 54, 66, 68, 72) pour détecter l'ébullition de la bouilloire disposée sur le corps principal de grille-pain (30) ou la base sans cordon (32).
PCT/CN2008/070933 2007-05-09 2008-05-09 Bouilloire/grille-pain combinés et bouilloire électrique sans cordon Ceased WO2008138268A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200720148665.2 2007-05-09
CNU2007201486652U CN201119795Y (zh) 2007-05-09 2007-05-09 面包烘烤及煮水加热的合一器具

Publications (1)

Publication Number Publication Date
WO2008138268A1 true WO2008138268A1 (fr) 2008-11-20

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ID=40001705

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/070933 Ceased WO2008138268A1 (fr) 2007-05-09 2008-05-09 Bouilloire/grille-pain combinés et bouilloire électrique sans cordon

Country Status (2)

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CN (1) CN201119795Y (fr)
WO (1) WO2008138268A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011041654A (ja) * 2009-08-20 2011-03-03 Zojirushi Corp 加熱容器
US20220265080A1 (en) * 2017-10-05 2022-08-25 Dupray Ventures Inc. Toaster with steam system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102551546A (zh) * 2012-01-13 2012-07-11 宁波市佳音机电科技有限公司 电子控温加热装置
CN105433821A (zh) * 2015-12-09 2016-03-30 宁波欧焙佳厨具有限公司 一种多功能面包机
WO2021021899A1 (fr) * 2019-07-29 2021-02-04 Juli Lank Système et procédé pour chauffer des aliments

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709943A1 (de) * 1997-03-11 1998-09-17 Bosch Siemens Hausgeraete Wasserkocher mit Dampfkanal
JP2000245627A (ja) * 1999-02-26 2000-09-12 Narinori Kanari ミルク沸かし装置付きトースター
WO2002011590A1 (fr) * 2000-08-07 2002-02-14 Otter Controls Limited Ensemble capteur de vapeur monte dans un recipient utilise pour rechauffer de l'eau
CN1423538A (zh) * 2000-01-24 2003-06-11 爱德华·约瑟夫·库利 组合式装置
CN2722788Y (zh) * 2004-06-22 2005-09-07 翟永书 一种无绳家用液体加热器
CN1722543A (zh) * 2001-06-01 2006-01-18 E·库利 家电的供电设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709943A1 (de) * 1997-03-11 1998-09-17 Bosch Siemens Hausgeraete Wasserkocher mit Dampfkanal
JP2000245627A (ja) * 1999-02-26 2000-09-12 Narinori Kanari ミルク沸かし装置付きトースター
CN1423538A (zh) * 2000-01-24 2003-06-11 爱德华·约瑟夫·库利 组合式装置
WO2002011590A1 (fr) * 2000-08-07 2002-02-14 Otter Controls Limited Ensemble capteur de vapeur monte dans un recipient utilise pour rechauffer de l'eau
CN1722543A (zh) * 2001-06-01 2006-01-18 E·库利 家电的供电设备
CN2722788Y (zh) * 2004-06-22 2005-09-07 翟永书 一种无绳家用液体加热器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011041654A (ja) * 2009-08-20 2011-03-03 Zojirushi Corp 加熱容器
US20220265080A1 (en) * 2017-10-05 2022-08-25 Dupray Ventures Inc. Toaster with steam system
US11659950B2 (en) * 2017-10-05 2023-05-30 Dupray Ventures Inc. Toaster with steam system
US12042078B2 (en) 2017-10-05 2024-07-23 Dupray Ventures Inc. Toaster with steam system

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