![]() COOKING OVEN AND PROCEDURE FOR THE FUNCTIONING OF A COOKING OVEN (Machine-translation by Google Tran
专利摘要:
The invention relates to a cooking oven (10) with a muffle (12) defining at least one cooking space (16), and with at least one heating element (18) which is provided to at least partially heat the cooking space (16). In order to improve the supply of power to a generic cooking oven, it is proposed that the cooking oven (10) has at least one connection unit (20) which is provided for connecting the heating element (18) to the minus a first operating state to at least one first supply voltage (22) and, in at least one second operating state, to be connected to at least one second supply voltage (24) different from the first supply voltage (22)). (Machine-translation by Google Translate, not legally binding) 公开号:ES2673693A1 申请号:ES201631677 申请日:2016-12-23 公开日:2018-06-25 发明作者:Juan Jose Galindo Perez;Sergio Llorente Gil;Carlos OBON ABADIA;Jose Manuel PALACIOS GASÓS;Edgar Jorge RAMIREZ LABOREO;Alvaro RIGUAL ITURRIA;Fernando SANZ SERRANO;Rebeca SORIA RUIZ 申请人:BSH Hausgeraete GmbH;BSH Electrodomesticos Espana SA; IPC主号:
专利说明:
5 10 fifteen twenty 25 30 COOKING OVEN AND PROCEDURE FOR THE OPERATION OF A COOKING OVEN DESCRIPTION The present invention refers to a cooking oven with a muffle that defines at least one cooking space, and with at least one heating element that is intended to at least partially heat the cooking space and to a method for putting into operation of a cooking oven. Through the state of the art, cooking device devices with a flask that delimit a cooking space are already known. In an operating state, a heating element partially heats the cooking space. The heating element is directly connected to a supply voltage, which is supplied by a power supply network. In order to increase the power that the heating element can emit, the total resistance of a system consisting of heating element and resistor is reduced, for example, by connecting several resistors in parallel. In order to reduce the power that the heating element can emit, the control unit drives the heating element in a pulsed operation. The present invention solves the technical problem of improving the power supply to a generic cooking oven. According to the invention, this technical problem is solved by means of a cooking oven, in particular an induction cooking oven, with a flask that defines at least one cooking space, and with at least one heating element which is intended to heat the less partially the cooking space, where the cooking oven has at least one connection unit that is intended to connect the heating element in at least a first operating state to at least a first supply voltage and, in at least one second operating state, to connect it to at least a second supply voltage different from the first supply voltage. The cooking oven could be a grill appliance and / or a steam cooking appliance and / or a microwave appliance. The induction cooker, in particular, induction cooker, has at least one inductive operating state and, in addition to the inductive operating state, it could have at least one operating state. 5 10 fifteen twenty 25 30 35 which differs from inductive heating, for example, at least one operating state of resistance heating. The muffle has at least one muffle wall, which at least partially defines the cooking space. Specifically, the muffle has at least two, preferably, at least three, advantageously, at least four and, preferably, at least five muffle walls. The muffle wall could be, for example, a muffle back wall and / or at least one muffle side wall and / or, preferably, at least one muffle cover wall and / or, preferably, at minus a muffle floor wall. The flask delimits the cooking space partially or completely and, advantageously, in at least one state of operation largely or completely together with at least one cooking oven appliance door. The cooking oven has at least one appliance door, which at least partially defines the cooking space in at least one operating state. The cooking space is provided so that at least one cooking product, for example food, is introduced into it to heat and / or heat and / or keep the cooking product warm. The muffle wall is a wall that delimits the cooking space at least to one side. The cooking oven has at least one rear wall of the cooking appliance. The rear wall of the cooking apparatus is arranged at least to a large extent and, advantageously, completely within the cooking space. Also, the rear wall of the cooking apparatus is made differently with respect to a muffle wall made as a rear wall of muffle and, advantageously, it is arranged in an area close to at least one muffle wall made as a rear wall. of muffle. The heating element is an element that is intended to transform energy, preferably electrical energy, into heat, and that supplies it to at least one object to be heated. The object to be heated could be, for example, at least one muffle wall of the muffle. Alternatively or additionally, the object to be heated could be, for example, at least one cooking battery arranged and / or introduced into the cooking space. The heating element is provided to at least partially heat the cooking space directly and / or indirectly. By way of example, in the case of a direct heating of the cooking space, the heating element can heat a fluid located within the cooking space, in particular air, and / or a gas-liquid mixture, for example, steam. The heating element could be 5 10 fifteen twenty 25 30 35 provided, for example, to heat a fluid that is in an area close to the heating element. The cooking oven could have, for example, at least one fan unit, which could be provided for distributing into the cooking space and / or introducing into the cooking space by means of convection a fluid heated by the heating element. In the case of indirect heating of the cooking space, the heating element could be provided to heat at least one cooking battery arranged within the cooking space. Alternatively or additionally, in the case of indirect heating of the cooking space, the heating element could, for example, be provided to heat at least one muffle wall of the muffle. A muffle wall heated by the heating element could heat the cooking space by heating a fluid located within the cooking space, specifically, the air located within the cooking space. The connection unit is a unit that has at least one connection element and which is intended to modify a current conduction property and / or at least one current path when its connection position is modified. The connection unit could have at least two, advantageously, at least three, particularly advantageously, at least four and, preferably, more connection elements, which could be arranged in a connection matrix. The connection elements arranged in a connection matrix could be connected side by side and / or one behind the other. The connection matrix is a unit defined by a composition of several connection elements. The connection elements connected next to each other comprise connection elements of the same hierarchy and / or of the same category. The connection elements connected one after the other comprise connection elements of different hierarchy and / or of different categories, which are connected one after the other and / or in series. The connection element can be connected through the control contact, where the connection element can be provided to receive a control signal from at least one control unit via the control contact and to modify its connection position depending on the control signal As an example, the connection element could be realized as a connection element, in particular, as a relay, mechanical and / or electromechanical and / or electromagnetic. The cooking oven has at least one control unit, which is intended to drive the connection unit, in particular, the connection element of the connection unit. 5 10 fifteen twenty 25 30 In the first operating state, the connection unit is arranged in a first connection position and, in the second operating state, it is arranged in a second connection position other than the first connection position. The first supply voltage and the second supply voltage differ in at least one property, for example, in the frequency and / or in the peak value of the voltage and / or in the sign of the voltage and / or in the phase position of the voltage. By means of the embodiment according to the invention, the power supply of the cooking oven can be improved, achieving great comfort of use. Also, high flexibility can be achieved. The heating element can be easily connected to different supply voltages, so that different degrees of power of the heating element can be adjusted particularly easily. In at least one operating state, the heating element can be operated with a higher power, and a high total power could be achieved, so that rapid heating of the cooking space and / or a heating time could be made possible reduced, which could be inversely proportional to the increase in total power. Likewise, it is proposed that the first supply voltage and the second supply voltage differ in at least one operating state at least in relation to the frequency. The first supply voltage has a first frequency and the second supply voltage has a second frequency, different from the first frequency. The second frequency is 2 times to 1,000 times higher than the first frequency. The cooking oven has at least a second power supply unit, which supplies the second supply voltage. In this way, particularly high flexibility can be achieved in relation to the power that the heating element can emit at most. In addition, it is proposed that the first supply voltage be a mains voltage supplied by a single phase of a mains supply current network. Thus, an optimum power supply can be achieved. By way of example, the second supply voltage could be another mains voltage supplied by another single phase of a mains supply network, which differs from the mains voltage by at least one property, in 5 10 fifteen twenty 25 30 35 in particular, in the phase position of the voltage. Preferably, the cooking oven has at least one high frequency current supply unit, which supplies the second supply voltage. The supply voltage supplied by the high frequency power supply unit has a frequency with a value between at least 1 kHz to at least 20 kHz. The high frequency supply voltage could, for example, have at least one step of the lifting drive, which could be provided to transform an input voltage into an output voltage that is greater than the input voltage. The high frequency power supply unit matches the second power supply unit. In this way, a high power application can be provided, whereby at least one high power building unit can be fed, such as an induction heating element. It is also proposed that the cooking oven has at least one other heating element, which is connected to the high frequency power supply unit in at least one operating state. By way of example, the other heating element could be connected to the high frequency supply voltage indirectly through the connection unit. However, the other heating element is connected to the high frequency supply voltage directly, in particular, immediately and / or without a connection unit and exclusively through electrical resistors. The other heating element is provided to at least partially heat the cooking space. Thus, the other heating element can be fed optimally, so that an optimum cooking result and / or great comfort of use is made possible. In addition, it is proposed that the high frequency current supply unit has at least one inverter, which is intended to feed the other heating element made as an induction heating element. The inverter could be realized, for example, as a transistor, in particular, as a power transistor and, preferably, as IGBT (Insulated-Gate Bipolar Transistor). The induction heating element is intended to generate an alternating electromagnetic field with a frequency between 17 kHz and 150 kHz. The other heating element made as an induction heating element is provided to generate heat in at least one metallic object, preferably ferromagnetic, by means of the alternating electromagnetic field generated by the other heating element made as an induction heating element, to through the induction of eddy currents and / or investment effects 5 10 fifteen twenty 25 30 35 magnetic, in particular, through the transformation into heat of the alternating electromagnetic field in the object to be heated. Thus, an economic realization can be achieved. It is also proposed that the connection unit be provided to connect the heating element in at least a third operating state to a third supply voltage. The third supply voltage is different from the first supply voltage and is different from the second supply voltage. The first supply voltage, the second supply voltage, and the third supply voltage differ in each case in at least one property, for example, in the frequency and / or in the peak value of the voltage and / or in the sign of the voltage and / or in the phase position of the voltage. In this way, particularly high flexibility can be achieved. The cooking oven could have at least one high frequency current supply unit, which could supply the third supply voltage. Preferably, the third supply voltage is another mains voltage supplied by another single phase of a mains supply current network. The phase and the other phase are two distinct phases of the power supply network. Thus, a high total power can be achieved, which makes it possible for the cooking space to heat quickly. In addition, it is proposed that the connection unit be provided to deactivate the heating element in at least one other operating state. In the other operating state, the connection unit separates the connection of the heating element with the supply voltages, in particular, with each of the supply voltages. The control unit is designed in particular to operate the other heating element in the other operating state and to deactivate the heating element by means of the connection unit. In this way, an embodiment can be achieved that saves energy and / or respects the environment. It is also proposed that the heating element be made as resistance heating element. The resistance heating element has at least one electrical resistance that is crossed by electric current in at least one operating state, and which is intended to transform energy, preferably electrical energy, into heat by means of the electrical resistance in at least one operating state. , and to supply this heat to at least one object to be heated. Thus, an economic realization becomes possible. 5 10 fifteen twenty 25 30 The power supply can be increased to a greater extent by a procedure for the operation of a cooking oven, with a muffle that defines at least one cooking space, and with at least one heating element through which it is heated at least partially the cooking space in at least one operating state, where the heating element is connected in at least a first operating state to at least a first supply voltage and, in at least a second operating state, is connected to at least a second supply voltage different from the first supply voltage. The cooking oven described is not limited to the application or to the embodiment described above, and may in particular have a number of elements, components, and particular units that differ from the amount mentioned herein, provided and when the purpose of fulfilling the functionality described here is pursued. Other advantages are taken from the following description of the drawing. An exemplary embodiment of the invention is shown in the drawing. The drawing, description and claims contain numerous features in combination. The person skilled in the art will consider the characteristics advantageously also separately, and will gather them in other reasonable combinations. They show: Fig. 1 a baking oven, in a schematic representation, Fig. 2 a muffle that delimits a cooking space, an element of heating, a fan unit, and two other heating elements of the cooking oven, in a schematic representation, and Fig. 3 the heating element, the other heating elements, a high frequency power supply unit, and a cooking oven connection unit, as well as a phase and another phase of a power supply network, in a schematic representation. Figure 1 shows a cooking oven 10 that could be made, for example, as a grill appliance and / or as a steam cooking appliance and / or as a microwave appliance. The cooking oven 10 has a muffle 12, which defines a space 5 10 fifteen twenty 25 30 of cooking 16. The flask 12 delimits the cooking space 16 partially. In an operating state, the flask 12 defines the cooking space 16 together with a cooking appliance door 34 completely. The cooking oven 10 has the cooking appliance door 34. The muffle 12 has five muffle walls 14. Only one of each of the objects present several times is accompanied by a reference symbol in the figures. In the operating state, the muffle walls 14 define the cooking space 16 together with the cooking appliance door 34 completely. One of the muffle walls 14 is made as a muffle floor wall 36. One of the muffle walls 14 is made as a muffle cover wall 38. One of the muffle walls 14 is made as a muffle back wall 40. Two of the muffle walls 14 are made as a muffle side wall 42, 44. Next, only one of the muffle walls 14 is described. The cooking oven 10 has a user interface 46 for the introduction and / or selection of operating parameters (see Figure 1), for example, the heating power and / or the density of the heating power and / or the heating zone Also, the user interface 46 is intended to give the user the value of an operating parameter. In addition, the cooking oven 10 has a control unit 30, which is intended to execute actions and / or modify settings depending on the operating parameters entered via the user interface 46. In an operating state, the control unit control 30 regulates the power supply to at least one heating element 18. The cooking oven 10 has the heating element 18 (see Figures 1 and 2). The heating element 18 is made as resistance heating element. In the operating state, the heating element 18 is provided to partially heat the cooking space 16. In the present embodiment, the cooking oven 10 has two other heating elements 52. Alternatively, the cooking oven 10 could have a different amount of other heating elements 52. As an example, the cooking oven 10 it could have exactly another single heating element 52. Alternatively, the cooking oven 10 could have, for example, at least three, preferably, at least four, advantageously, at least five and, preferably, more than other heating elements 52. 5 10 fifteen twenty 25 30 In an operating state, the other heating elements 52 are disposed outside the cooking space 16. In the installation position, the other lower heating element 52 of the other heating elements 52 is arranged below the muffle wall 14 made as a muffle floor wall 36. The other lower heating element 52 is arranged next to the muffle wall 14 made as a muffle floor wall 36. In the installation position, the other upper heating element 52 of the other heating elements 52 is disposed above the muffle wall 14 made as a muffle cover wall 38. The other upper heating element 52 is arranged next to the muffle wall 14 made as muffle cover wall 38. Alternatively, at least one other heating element 52 could be arranged next to a muffle wall 14 made as a muffle side wall 42, 44 and / or next to a muffle wall 14 made as a muffle back wall 40. Next, only one of the other heating elements 52 is described. In this exemplary embodiment, the other heating element 52 is provided to heat the muffle wall 14 next to which the other heating element 52 is arranged. In the present embodiment, the other heating element 52 heats the wall of muffle 14 inductively. The other heating element 52 is made as an induction heating element. The cooking oven 10 has a fan unit 48 (see Figures 1 and 2). The fan unit 48 has a rotating fan wheel about an axis of rotation. In the operating state, the fan unit 48 generates a fluid flow through the fan wheel and circulates the fluids within the cooking space 16. When viewed from the front side, the fan unit 48 is arranged in the rear area of the cooking space 16. The fan unit 18 is arranged in an area close to the rear wall of muffle 40. The cooking oven 10 has a rear wall of cooking device 50. The rear wall of cooking device 50 is arranged inside the cooking space 16. When viewed from the front side, the rear wall of cooking device 50 is arranged in front. of the fan unit 48. The rear wall of cooking apparatus 50 is arranged in an area close to the rear wall of muffle 40. 5 10 fifteen twenty 25 30 The fan unit 48 is arranged in an area close to the heating element 18. When viewed from a front side, the heating element 18 is arranged behind the rear wall of cooking apparatus 50. The heating element 18 is arranged in an area near the back wall of muffle 40. The cooking oven 10 has a connection unit 20 (see Figure 3). The connection unit 20 connects the heating element 18 in different operating states to different supply voltages 22, 24, 56. In a first operating state, the connection unit 20 connects the heating element 18 to a first supply voltage 22. In the first operating state, the heating element 18 could emit, for example, a power of approximately 2, 2 kW In a second operating state, the connection unit 20 connects the heating element 18 to a second supply voltage 24 other than the first supply voltage 22. In the second operating state, the heating element 18 could emit, by example, a power of approximately 3.7 kW. In the present embodiment, the first supply voltage 22 and the second supply voltage 24 differ in an operating state with respect to the frequency. The first supply voltage 22 is a mains voltage supplied by a phase 26 of a power supply network. In this exemplary embodiment, the first supply voltage 22 has a frequency of approximately 50 Hz. The cooking oven 10 has a high frequency current supply unit 28. The high frequency current supply unit 28 supplies the second supply voltage 24. In the present embodiment, the first supply voltage 22 has a frequency of at least 1 kHz. The high frequency current supply unit 28 has an inverter 54. Alternatively, the high frequency current supply unit 28 could have a different number of inverters 54. As an example, the high current supply unit frequency 28 could have at least two, preferably at least four, advantageously, at least six and, preferably, more investors 54. In an operating state, inverter 54 supplies the frequency of at least 1 kHz. The inverter 54 is provided for feeding the other heating element 52 made as an induction heating element. The other heating element 52 is connected in an operating state 5 to the high frequency current supply unit 28. In the second operating state, the heating element 18 and the other heating element 52 are connected to the unit of high frequency power supply 28. In a third operating state, the connection unit 20 connects the heating element 18 to a third supply voltage 56. The third supply voltage 56 is another mains voltage supplied by another phase 58 of the power supply network . Phase 26 and other phase 58 are different phases of the same power supply network. In the third operating state, the heating element 18 could emit, for example, a power of approximately 2.2 kW, and the other heating element 52 could emit, for example, a power of approximately 3.6 kW. In another operating state, the connection unit 20 deactivates the heating element 18, connects it to a deactivation contact 60. The heating element 18 is not operating in the other operating state. In a procedure for putting the cooking oven 10 into operation, the cooking space 16 is partially heated by the heating element 18 in an operating state. In this exemplary embodiment, the cooking space 16 is partially heated by the other heating element 52 in an operating state. In the first operating state, the heating element 18 is connected to the first supply voltage 22 and, in the second operating state, it is connected to the second supply voltage 24 other than the first supply voltage 22. 10 12 14 16 18 twenty 22 24 26 28 30 3. 4 36 38 40 42 44 46 48 fifty 52 54 56 58 60 Reference symbols Mufla cooking oven Muffle wall Cooking space Heating element Connection unit First supply voltage Second supply voltage Phase High frequency power supply unit Control unit Cooking appliance door Muffle floor wall Muffle cover wall Muffle back wall Muffle side wall Muffle side wall User interface Fan unit Rear wall of cooking appliance Other heating element Investor Third supply voltage Other phase Deactivation contact
权利要求:
Claims (11) [1] 5 10 fifteen twenty 25 30 35 1. Cooking oven with a muffle (12) defining a cooking space (16), and with at least one heating element (18) that is intended to at least partially heat the cooking space (16), characterized by a connection unit (20) which is intended to connect the heating element (18) in a first operating state to a first supply voltage (22) and, in a second operating state, to connect it to a second supply voltage supply (24) different from the first supply voltage (22). [2] 2. Cooking oven according to claim 1, characterized in that the first supply voltage (22) and the second supply voltage (24) differ in at least one operating state at least in relation to the frequency. [3] 3. Cooking oven according to claims 1 or 2, characterized in that the first supply voltage (22) is a mains voltage supplied by a phase (26) of a power supply network. [4] 4. Cooking oven according to one of the preceding claims, characterized by a high frequency current supply unit (28), which supplies the second supply voltage (24). [5] 5. Cooking oven according to claim 4, characterized by at least one other heating element (52), which is connected to the high frequency current supply unit (28) in at least one operating state. [6] 6. Cooking oven according to claim 5, characterized in that the high frequency current supply unit (28) has at least one inverter (54), which is intended to feed the other heating element (52) made as an element induction heating. [7] 7. Cooking oven according to one of the preceding claims, characterized in that the connection unit (20) is intended to connect the heating element (18) in a third operating state to a third supply voltage (56). 10 fifteen twenty [8] 8. Cooking oven according to claim 7, characterized in that the third supply voltage (56) is another mains voltage supplied by another phase (58) of a power supply network. [9] 9. Cooking oven according to one of the preceding claims, characterized in that the connection unit (20) is provided to deactivate the heating element (18) in another operating state. [10] 10. Cooking oven according to one of the preceding claims, characterized in that the heating element (18) is made as a resistance heating element. [11] 11. Method for putting into operation a cooking oven (10) according to one of claims 1 to 10, with a muffle (12) defining at least one cooking space (16), and with at least one element of heating (18) through which the cooking space (16) is heated at least partially in at least one operating state, characterized in that the heating element (18) is connected in a first operating state to a first voltage of supply (22) and, in a second operating state, is connected to a second supply voltage (24) different from the first supply voltage (22).
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公开号 | 公开日 US20200068673A1|2020-02-27| WO2018116056A1|2018-06-28| CN110073720B|2022-02-15| CN110073720A|2019-07-30| ES2673693B1|2019-04-09|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 EP0291302A2|1987-05-12|1988-11-17|Aktiebolaget Electrolux|Electric cooking oven| JPH09245961A|1996-03-06|1997-09-19|Matsushita Electric Ind Co Ltd|Cooling apparatus with heater| DE19963079A1|1999-12-24|2001-07-05|Aeg Hausgeraete Gmbh|Electric cooker has power stage generating medium frequency alternating current suitable for induction heater and for supplying all heaters with required electrical power for heating| US20090294434A1|2007-12-28|2009-12-03|Julia Fonseca|Control system for an appliance|ES2766926A1|2018-12-13|2020-06-15|Bsh Electrodomesticos Espana Sa|Kitchen oven device |JPS5545659U|1978-09-20|1980-03-25| FR2839605B1|2002-05-07|2004-09-10|Elka|INDUCTION ELECTRIC COOKING MODULE AND METHOD FOR CONTROLLING THE MODULE| JP4310293B2|2005-05-30|2009-08-05|日立アプライアンス株式会社|Induction heating device| DE102005044466B4|2005-09-16|2008-09-18|Hüttinger Elektronik Gmbh + Co. Kg|Excitation arrangement for induction furnaces| DE102006058874A1|2006-12-06|2008-06-19|E.G.O. Elektro-Gerätebau GmbH|Method for controlling induction heating devices in an electric cooking appliance| JP5253902B2|2008-06-24|2013-07-31|株式会社東芝|Heating cooker and power supply method to heating cooker| US8309893B2|2009-02-24|2012-11-13|Electrolux Home Products, Inc.|Switching apparatus and controller for an electric appliance that promotes extended relay life| EP2506671B1|2011-03-29|2017-09-13|BSH Hausgeräte GmbH|Switch device| ES2602489T3|2011-03-29|2017-02-21|BSH Hausgeräte GmbH|Switching device| ES2441647B1|2011-12-05|2014-12-04|Bsh Electrodomésticos España, S.A.|Induction heating device with a control unit|CN110250935A|2017-08-09|2019-09-20|沙克忍者运营有限责任公司|Cooking system| USD914436S1|2018-06-19|2021-03-30|Sharkninja Operating Llc|Air diffuser with food preparation pot| USD903413S1|2018-08-09|2020-12-01|Sharkninja Operating Llc|Cooking basket| USD883014S1|2018-08-09|2020-05-05|Sharkninja Operating Llc|Food preparation device| USD883015S1|2018-08-09|2020-05-05|Sharkninja Operating Llc|Food preparation device and parts thereof| USD934027S1|2018-08-09|2021-10-26|Sharkninja Operating Llc|Reversible cooking rack| US20190254476A1|2019-02-25|2019-08-22|Sharkninja Operating Llc|Cooking device and components thereof| JP1677688S|2019-06-06|2021-01-25| USD918654S1|2019-06-06|2021-05-11|Sharkninja Operating Llc|Grill plate| US20210121012A1|2020-03-30|2021-04-29|Sharkninja Operating Llc|Cooking device and components thereof| DE102020109015A1|2020-04-01|2021-10-07|Rational Wittenheim Sas|Cooking device and system with one cooking device|
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申请号 | 申请日 | 专利标题 ES201631677A|ES2673693B1|2016-12-23|2016-12-23|COOKING OVEN AND PROCEDURE FOR THE OPERATION OF A COOKING OVEN|ES201631677A| ES2673693B1|2016-12-23|2016-12-23|COOKING OVEN AND PROCEDURE FOR THE OPERATION OF A COOKING OVEN| CN201780079821.0A| CN110073720B|2016-12-23|2017-12-12|Cooking appliance device| US16/466,047| US20200068673A1|2016-12-23|2017-12-12|Cooking appliance| PCT/IB2017/057816| WO2018116056A1|2016-12-23|2017-12-12|Cooking appliance| 相关专利
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