WO2016087299A1 - Household appliance, household appliance arrangement and cooking system - Google Patents
Household appliance, household appliance arrangement and cooking system Download PDFInfo
- Publication number
- WO2016087299A1 WO2016087299A1 PCT/EP2015/077737 EP2015077737W WO2016087299A1 WO 2016087299 A1 WO2016087299 A1 WO 2016087299A1 EP 2015077737 W EP2015077737 W EP 2015077737W WO 2016087299 A1 WO2016087299 A1 WO 2016087299A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- household appliance
- antenna
- indicator
- signal strength
- sensor device
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/007—Details of, or arrangements associated with, antennas specially adapted for indoor communication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2207/00—Application of thermometers in household appliances
- G01K2207/02—Application of thermometers in household appliances for measuring food temperature
- G01K2207/06—Application of thermometers in household appliances for measuring food temperature for preparation purposes
Definitions
- An operating device is inductively coupled to a supply unit, and the operating unit may communicate an induction power level to the supply unit in order to control the power supply to the operating unit.
- the invention is based on the problem to improve the reliability of a household appliance e.g. kitchen hob, in particular in the case when a wireless sensor is used to control the progress re ⁇ spectively parameters of the cooking process.
- a household appliance according to claim 1 a household appliance arrangement according to claim 9 and a cooking system according to claim 14. Further developments of the invention are given in the dependent claims .
- the household appliance e.g. kitchen hob accord ⁇ ing to the present invention incorporates a technically simple solution to control the proper operation of the hob and the availability of sensor information at the hob.
- the solution according to the present invention requires no addi ⁇ tional parts and only modifications to existing parts. It is thus reliable, not more complicated to manufacture than existing solutions, while at the same time providing better information and control of the cooking process.
- an amplifier in the receiver is used that provides an amplification factor as a value for signal strength information.
- an electronic circuit respectively a con- troller e.g. is present that is adapted to process the signal strength information to generate an indication signal.
- a component that is already present in advanced kitchen hobs to control cooking functions and automated cooking programs is made available for further use to provide additional benefits to the customer and the operator of the oven in providing additional information to safeguard the proper operation of the cooking process.
- the indicator is constructed as a dis ⁇ play.
- visible information can be provided to su ⁇ pervise the proper operation of the kitchen hob and the wire- lessly attached sensor unit.
- a dedicated antenna is provided with spe ⁇ cific geometric properties, because such an antenna is particu ⁇ larly suitable for reliable use in a kitchen environment, and beneficially such an antenna can be technically simple manufac ⁇ tured from a sheet metal and thus imposes no high additional costs on the kitchen hob.
- the antenna is operating in frequency ranges of the ISM band - industrial Scientific and Medical band, e.g. 433.05 to 434.79 MHz, 902 to 928 MHz, 2.4 to 2,5 GHz. Other frequencies are also conceivable. In this frequency range, reli ⁇ able wireless communication is possible, in particular considering operation at an induction hob.
- the household appliance e.g. kitchen hob accord ⁇ ing to an embodiment of the present invention is an induction hob and/or comprises a Superhet-receiver .
- a mod- ern cooking technology can be combined with a reliable receiver that at the same time allows to readily provide an amplification factor as a signal strength information.
- An oven, a dishwasher, a fridge, a washing machine or a tumble dryer may also be con ⁇ sidered as household appliance in this context.
- a household appliance- e.g. cooking arrangement comprises a kitchen hob ac ⁇ cording to the present invention and a sensor device coupled via a wireless communication line.
- the proper opera- tion of the sensor device can be supervised and thus reliability of the cooking process overall be improved, while at the same time safeguarding the proper operation of automated cooking programs that may use the sensor information provided by the sensor device .
- the sensor device is a temperature and/or flavor sensor.
- the control of a cooking process and the automated preparation of special meals can be improved and better cooking results as a consequence of the improved reliability can be provided.
- the sensor device comprises a receiver for inductive energy, as in this manner, no separate power supply is required, in particular an accumulator, when an induction hob is used for cooking.
- the sensor device itself also comprises an indicator for indicating the proper operation of the wireless communication line. In this manner, e.g. when the operator stirs the food, or uses a pot, he may be directly in ⁇ formed about the condition of the communication, e.g. a green light emitting diode may be provided or a vibrating actuator may be used that alerts the user to check for further information or control the proper positioning of the sensor device on the hob.
- a cooking system according to the present inven tion provides a simple solution to inform a user of the proper operation of the wireless communication line between a kitchen hob and a sensor device.
- the sensor device allows to indicate the presence of a weak wireless communication as well thereby being capable to immedi ⁇ ately alert a user to check all the cooking parameters.
- Fig. 1 shows a side view of an antenna
- Fig. 2 shows a top view of an antenna
- Fig. 3 shows a schematic representation of a kitchen appli ⁇ ance ;
- Fig. 4 shows an example of a cooking arrangement
- Fig. 5 shows examples of indications for a signal strength in formation
- Fig. 6 shows a type of an antenna
- Fig. 7 shows another type of an antenna.
- an antenna arrangement 100 that may benefi ⁇ cially form part of embodiments of the present invention com ⁇ prises a shape part consisting of the left shape 130 and the right shape 120.
- the antenna arrange ⁇ ment 100 measures preferably about 100 mm, more preferably 102 mm and most preferably 101,5 mm.
- the shaped parts have a curvature which is more closely shown in the following Fig. 2.
- the left and the right shaped part 130 and 120 are separated by a slit that comprises a tongue 160, which is connected to a coaxial feeding 155.
- the slit has an overall width of about 20 mm, more preferably 24 mm and most preferably 23 mm.
- the tongue 160 beneficially serves to further adapt the transmission characteristics of the antenna arrange ⁇ ment 100. Therefore in different embodiments of the antenna ar ⁇ rangement 100 the tongue 160 may have different proportions.
- the tongue 160 ends inside the slit.
- the overall length of an antenna body according to this structure is about 160 mm, more preferably 156 mm, and most preferably 158,5 mm.
- the length of the resonating part is about 145 mm, more preferably 141 mm, and most preferably 143,5 mm.
- the tongue 160 has a length of about 60 mm, more preferably 64 mm, and most prefera ⁇ bly 62 mm.
- the tongue comprises a step reaching downward towards the ground plane 105. Preferably this step is used to attach a connector for the coax ⁇ ial feeding.
- the feeding by means of a coaxial cable is beneficially provided here.
- the left shaped part 130 is beneficially supported by an isolated spacer 150 and the right shaped part 120 is beneficially sup ⁇ ported by an isolated spacer 140.
- the distance between the ground plane 105 and resonating structure is about 14 mm, more preferably 10 mm, and most preferably 12 mm.
- an antenna body ac- cording to this construction is about 173 mm, more preferably
- the length of the resonating part is about 158 mm, more preferably 154 mm, and most preferably 156,5 mm.
- the tongue 160 here has a length of about 86,5 mm, more preferably 90,5 mm, and most preferably 88,5 mm.
- the tongue comprises a step reaching downward towards the ground plane 105.
- this step is used to attach a connector for the coaxial feeding.
- it goes downward from the level of the tongue 160 about 5 mm, preferably 5,5 mm, has a length of about 8 mm, preferably 8,5 mm and conforms to the width of the tongue 160.
- the length of the tongue of this structure without the step is thus about 78 mm, more preferably 82 mm, and most preferably 80 mm.
- a trapezoidal shape 110 can be identified which extends from the end of the slit to the step at the rectangular part 170 next to the left end of the antenna arrangement 100.
- the trapezoidal shape 110 has a length of about 64,8 mm, more preferably 88,8 mm, and most pref ⁇ erably 66,8 mm.
- a ground plane 105 can be identified.
- a ground connecting part 165 and a rectangular part 170.
- the rectangular part has a height 190 and the ground- connecting part has a width 182.
- the width 182 is about 13 mm, more preferably 17 mm, and most preferably 15 mm.
- the height 190 is about 10 mm, more preferably 14 mm, and most preferably 12 mm.
- the trapezoidal shape 110 ends at the bend 190 into the rectangular part 170.
- Fig. 2 shows a top view 200 of an antenna arrangement benefi ⁇ cially forming part in embodiments of the present invention which e.g. substantially resembles a heart shape.
- a ground plane 105 can be seen which is underneath the shape part.
- Fig. 2 depicts top ends of the isolating spacers 225 and 215 respectively mechanically connecting the right shaped part 120 and the left shaped part 130 with the ground plane 105.
- the left shaped part 130 has a curvature 255 and the right shaped part 120 has a curvature 250.
- this curvature is implemented as the section of an ellipse.
- a trapezoidal shape 110 is shown in the drawing.
- the ground-connecting part 165 is fixed by its screws 230 and 235, respectively, to the ground plane 105.
- the antenna arrangement at the bend 190 has a suitable width 290 in terms of desired transmission-/ reception characteristics .
- the width 290 is about 52 mm, more preferably 56 mm, and most preferably 54 mm.
- the width of the ground connecting part 165 corre ⁇ sponds to the width 290 of the bend. It may be smaller though about 32 mm, more preferably 36 mm, and most preferably 34 mm.
- the feeding 155 is provided by a coaxial cable 210 at the tongue 160.
- the slit of the antenna ar ⁇ rangement can be provided in the form of a left slit 275 and a right slit 270. However, these two slits can be seen as one slit that is separated by the tongue 160 as well.
- the slit has a length 284 about 74,7 mm, more preferably 78,7 mm, and most preferably 76,7 mm in the structure of the shorter an ⁇ tenna arrangement .
- the slit has a length 284 about 78 mm, more prefera ⁇ bly 82 mm, and most preferably 80 mm in the embodiment of the longer antenna arrangement and a width 280, respectively 282, which can be different for the left slit 275 and the right slit 270.
- the left width 280 plus the right width 282 is about 21 mm, more preferably 25 mm, and most pref ⁇ erably 23 mm.
- the width 286 of the tongue is adapted to the transmission frequencies and measures about 3,8 mm, more preferably 5,8 mm, and most preferably 4,8 mm, Thus generally about 5 mm.
- the antenna design is technically simple, easy to manufacture and provides wideband characteristics.
- a corresponding antenna may preferably be designed for transmis- sion / reception in frequency ranges of the ISM bands - Indus ⁇ trial, Scientific and Medical Band -, e.g. 433,05 - 434,79 MHz, 902 - 928 MHz, 2,4 - 2,5 GHz.
- Other frequency ranges are also conceivable. In particular frequencies that are commonly associ ⁇ ated to Wi-Fi communication or wireless LAN.
- a kitchen appli ⁇ ance such as a hob to communicate with a sensor that is used in combination with the household appliance, respectively the kitchen hob.
- the e.g. elliptically tapered resonating metallic plate consisting of the left shaped part 130, the right shaped part 120 and the trapezoidal shaped part 110 allows the increase of the antenna bandwidth of the antenna arrangement and thus permits communication between e.g. a hob and the wireless sen- sor.
- a kitchen apparatus 300 according to an embodi ⁇ ment of the present invention has an antenna arrangement 100, a cooking vessel 310. Further beneficially it is completed by a cooking sensor 350 that is capable of wirelessly 360 communi ⁇ cating with the antenna arrangement 100. This beneficially pro ⁇ vides for a minimum configuration to adapt a sensor application in a kitchen environment and in particular to use sensors to im ⁇ prove cooking results and to control cooking results by an aver- age customer.
- a cooking arrangement according to an embodi ⁇ ment of the present invention 400 beneficially comprises an in ⁇ duction hob 300, a sensor device 350, a cooking pot 310, and a wireless communication line 360. Further, cooking zones in the form of and associated to induction coils 430, 440, 450 and 460 are shown. Also in this case, two antennas 410 and 420 are shown. The antennas preferably operate in the ISM band and may transmit /receive in frequency ranges of this Industrial S_cien- tifical and Medical band defined e.g. from 330.06 to 334.79 MHz, as well as 902 to 928 MHz, while as well as from 2.4 to 2.5 GHz frequency ranges.
- this Industrial S_cien- tifical and Medical band defined e.g. from 330.06 to 334.79 MHz, as well as 902 to 928 MHz, while as well as from 2.4 to 2.5 GHz frequency ranges.
- the antenna can be also designed to oper- ate in the frequencies of the Wi-Fi band as this is a commonly available technology, widespread and reliable.
- implementa ⁇ tion of this technology is not overly complicated in a household environment .
- in the presence of an induction coil emanating electromagnetic waves and at induction cooking a condition has to be met that no interference occurs between the electromagnet ⁇ ic waves emanated from the induction coils for the purpose of cooking and the electromagnetic waves used on the wireless com- munication line 360.
- a receiver 485 is comprised, also an indicator 480 is shown, which can also be an acoustical indicator or a simple LED or for instance a meter showing a received signal strength with a hand in form of a bar charge or in form of a seven segment digits display.
- a controller may be present that may bene ⁇ ficially receive signal strength information in form of an amplification sector from the receiver and processes it into a signal strength information that is indicated on the indicator 480.
- Also input keys 470 are depicted that allow the input of cooking parameters to control the kitchen hob 300, e.g. to start a par ⁇ ticular one of the cooking zones 430 to 460 or to initiate an automated cooking program e.g. by also activating a wireless communication line between the sensor and the kitchen hob in order to supervise certain cooking parameters, such as a tempera ⁇ ture, or to receive information about the taste of the food when the sensor is equipped with taste sensors in order to further allow proper spicing of the food to be prepared and control of the result.
- certain cooking parameters such as a tempera ⁇ ture
- the sensor device 350 may be equipped with a coil in order to receive the induction energy emanated from the cooking zones 430-460 and to allow energy supply of the sensor in this manner.
- the sensor may be equipped with a transmit ⁇ ter/receiver in order to communicate information via the wireless communication line 360, respectively receive control infor ⁇ mation from the controller 465 of the kitchen hob.
- the sensor device 350 may be also equipped with an indica ⁇ tor, such as a light, an acoustic indicator or a vibrating device in order to indicate that an action is required regarding the food to be prepared or in order to indicate that something is wrong with the wireless communication line and to e.g. posi ⁇ tion the sensor differently in order to improve the wireless communication line.
- the cooking arrangement according to e.g. a preferred em- bodiment of the invention allows it to properly supervise the operation of the cooking arrangement in a facilitated manner, while at the same time improving the reliability of automated cooking programs, e.g. supervision of cooking parameters by the kitchen hob, as a failure can be quickly identified and counter- measures be taken by the user with proper effect to ensure cor ⁇ rect operation.
- the receiver 485 may be e.g. operated according to the Superhet principle, e.g. indicates of dynamically ampli ⁇ fying intermediate amplification stages using automated gain control, the amplification factor as a value for the received signal strength on the wireless communication line.
- the indication of a received signal strength may be implemented in different forms.
- several alterna ⁇ tives 500 are shown.
- a classic instrument 520 with a hand 525 may indicate the received signal strength.
- a bar chart indicating the received signal strength of a wireless signal by presenting bars of different lengths may be used.
- a short bar 530, a longer bar 532, a medium-sized bar 534 and the long bar 536 are shown to indicate a lower or higher received signal strength in the sequence of the recited numbers.
- signal strength information may be given in the form of seven segment displays.
- any value between 0 and 100 may be shown depending on the number of segments elements used for displaying the information. Also a percentage indication can be given in terms of maximum received signal strength. Further, other optical or acoustical means can be used in order to inform the user of the kitchen hob of the proper information of the wireless communication line.
- an antenna arrangement 600 that may benefi ⁇ cially form part of embodiments of the present invention com- prises a director 630, a reflector 610 and a radiator 620 the distances between the parts may be related to the wavelength ⁇ of reception / transmission of the antenna 600.
- the distance be ⁇ tween radiator and reflector 640 may be 0,25 ⁇ ; and the distance between radiator and director 650 may be 0,13 ⁇ . Any other rela- tions are conceivable.
- such an antenna is also called a Yagi-Uda Antenna. As shown in Fig.
- the length of the arms may be related to the wavelength ⁇ of reception / transmission of the antenna 700.
- the length 750 of both antenna arms together may for instance amount to a total length of 0,5 ⁇ ; any other relations to the wave ⁇ length are conceivable that suit the characteristics such an an ⁇ tenna design.
- An electrical field 740 associated to the antenna 700 is further depicted. In the art such an antenna is also called a Dipole Antenna.
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- General Engineering & Computer Science (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580060691.7A CN107076424B (en) | 2013-12-12 | 2015-11-26 | Household electrical appliance, household electrical appliance arrangement and cooking system |
US15/522,875 US10594413B2 (en) | 2013-12-12 | 2015-11-26 | Household appliance, household appliance arrangement and cooking system |
AU2015357340A AU2015357340B2 (en) | 2013-12-12 | 2015-11-26 | Household appliance, household appliance arrangement and cooking system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EPEP14195990.8 | 2014-12-03 | ||
EP14195990.8A EP2884249B2 (en) | 2013-12-12 | 2014-12-03 | Household appliance, household appliance arrangement and cooking system |
Publications (1)
Publication Number | Publication Date |
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WO2016087299A1 true WO2016087299A1 (en) | 2016-06-09 |
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Family Applications (1)
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PCT/EP2015/077737 WO2016087299A1 (en) | 2013-12-12 | 2015-11-26 | Household appliance, household appliance arrangement and cooking system |
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WO (1) | WO2016087299A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0619568A1 (en) * | 1993-04-05 | 1994-10-12 | Whirlpool Corporation | Diagnostic method and apparatus for a domestic appliance |
DE20003307U1 (en) * | 2000-02-23 | 2000-04-13 | Ego Elektro Geraetebau Gmbh | Device for monitoring a household appliance |
KR20070080934A (en) * | 2006-02-09 | 2007-08-14 | 엘지이노텍 주식회사 | Radio frequency identification reader |
CN202253825U (en) * | 2011-08-31 | 2012-05-30 | 美的集团有限公司 | Temperature measurement system of electromagnetic oven pan |
WO2013031518A1 (en) * | 2011-08-26 | 2013-03-07 | エスアイアイ移動通信株式会社 | Planar inverted f antenna |
WO2013098628A2 (en) * | 2011-12-30 | 2013-07-04 | Convotherm Elektrogerate Gmbh | Continuously monitored core temperature sensor and method |
-
2015
- 2015-11-26 WO PCT/EP2015/077737 patent/WO2016087299A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0619568A1 (en) * | 1993-04-05 | 1994-10-12 | Whirlpool Corporation | Diagnostic method and apparatus for a domestic appliance |
DE20003307U1 (en) * | 2000-02-23 | 2000-04-13 | Ego Elektro Geraetebau Gmbh | Device for monitoring a household appliance |
KR20070080934A (en) * | 2006-02-09 | 2007-08-14 | 엘지이노텍 주식회사 | Radio frequency identification reader |
WO2013031518A1 (en) * | 2011-08-26 | 2013-03-07 | エスアイアイ移動通信株式会社 | Planar inverted f antenna |
CN202253825U (en) * | 2011-08-31 | 2012-05-30 | 美的集团有限公司 | Temperature measurement system of electromagnetic oven pan |
WO2013098628A2 (en) * | 2011-12-30 | 2013-07-04 | Convotherm Elektrogerate Gmbh | Continuously monitored core temperature sensor and method |
Non-Patent Citations (1)
Title |
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DATABASE WPI Week 201244, Derwent World Patents Index; AN 2012-H21268, XP002753744 * |
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