WO2017193531A1 - 烹饪器具 - Google Patents

烹饪器具 Download PDF

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Publication number
WO2017193531A1
WO2017193531A1 PCT/CN2016/101196 CN2016101196W WO2017193531A1 WO 2017193531 A1 WO2017193531 A1 WO 2017193531A1 CN 2016101196 W CN2016101196 W CN 2016101196W WO 2017193531 A1 WO2017193531 A1 WO 2017193531A1
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WO
WIPO (PCT)
Prior art keywords
conductive
ring
magnetic
hair
tropics
Prior art date
Application number
PCT/CN2016/101196
Other languages
English (en)
French (fr)
Inventor
徐腾飞
吴培洪
黄宇华
Original Assignee
佛山市顺德区美的电热电器制造有限公司
美的集团股份有限公司
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
Priority claimed from CN201620443383.4U external-priority patent/CN205831627U/zh
Priority claimed from CN201610323141.6A external-priority patent/CN107361620B/zh
Application filed by 佛山市顺德区美的电热电器制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的电热电器制造有限公司
Priority to EP16901486.7A priority Critical patent/EP3456224B1/en
Publication of WO2017193531A1 publication Critical patent/WO2017193531A1/zh
Priority to US16/188,320 priority patent/US11304269B2/en

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    • 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
    • A47J37/0611—Roasters; Grills; Sandwich grills the food being cooked between two heating plates, e.g. waffle-irons
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/44—Coil arrangements having more than one coil or coil segment
    • 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
    • A47J37/10—Frying pans, e.g. frying pans with integrated lids or basting devices

Definitions

  • the present invention relates to the field of kitchen appliance technology, and more particularly to a cooking appliance.
  • Cooking utensils such as rice cookers, grilling machines, etc.
  • Cooking utensils generally have three-dimensional heating, that is, while heating elements are placed at the bottom of the pot body (or the lower baking pan), heating elements are often placed on the lid body (upper baking pan).
  • the three-dimensional heating is realized, so that the upper and lower sides of the conditioning material are heated uniformly, and the mouthfeel is good.
  • this requires the installation of two or more heating elements, which not only increases the cost of manufacturing, but also causes the products produced to be too large and does not meet the requirements of the market.
  • the cooking appliance is IH (electromagnetic) heating or electric heating tube heating
  • the part opposite to the induction coil or the electric heating tube receives more heat
  • the part farther from the heating source receives less heat, which causes uneven heating area.
  • a thermal diffusion layer (usually made of a metal having a strong thermal conductivity, such as aluminum) is added between the heating source and the conditioning material, and the heat is uniformly uploaded through the thermal diffusion layer.
  • the conditioning agent is added to reduce the difference in heat of the conditioning material, but this does not substantially solve the uneven heating of the conditioning material.
  • the present invention aims to solve at least one of the technical problems existing in the prior art.
  • the invention consists in proposing a cooking appliance which can achieve a three-dimensional heating and a uniform heating.
  • the cooking appliance according to the present invention comprises: a pot body, the pot body is provided with a first magnetic conductive ring and a first conductive hair tropic, and the first conductive tropical tropic is connected with the first magnetic conductive ring to form a closed loop a cover body, the cover body can openly cover the pot body, the cover body is provided with a second magnetic conductive ring and a second conductive hair tropic, the second conductive tropics and the second guide
  • the magnetic rings are connected to form a closed loop; an induction coil is disposed between the first magnetically conductive ring and the second magnetically conductive ring, and the induction coil and the first magnetically conductive ring respectively The second magnetically permeable ring is opposite.
  • the induction coil is disposed between the first magnetically permeable ring and the second magnetically permeable ring, and when the induction coil is energized, the induced electromotive force can be generated simultaneously on the first magnetically permeable ring and the second magnetically permeable ring.
  • the pot body and the lid body are heated, thereby not only reducing the use of the induction coil, saving cost, improving the utilization rate of the electromagnetic induction energy, but also making the cooking utensil thinner.
  • a cross section of the first magnetically permeable ring has an arc shape with an opening upward
  • a cross section of the second magnetic permeable ring has an arc shape with an opening downward
  • the induction coil is located at the first The inner side of the magnetically permeable ring and the second magnetically permeable ring.
  • the inner circumference of the first magnetically permeable ring and the inner circumference of the second magnetically permeable ring are vertically opposed and spaced apart, and the outer circumference of the first magnetically permeable ring and the second The outer circumference of the magnetically permeable ring is opposed to each other and spaced apart.
  • an inner circumference of the first magnetically permeable ring and an inner circumference of the second magnetically permeable ring and an outer circumference of the first magnetically permeable ring and the second magnetically permeable A slit having a size ranging from 1 mm to 20 mm is formed between the outer peripheral edges of the ring.
  • an inner circumference of the first magnetically permeable ring and an inner circumference of the second magnetically permeable ring and an outer circumference of the first magnetically permeable ring and the second magnetically permeable are separated by a spacer.
  • the cover body has a transparent cover shape
  • the second conductive hair tropic is a transparent band shape
  • the cover is a glass cover and the second conductive hair is an ITO conductive tape.
  • a distance between the induction coil and the first magnetically permeable ring is not greater than a distance between the induction coil and the second magnetically permeable ring.
  • the first magnetic flux guiding ring extends along the circumference of the pot body to form a ring having a notch
  • the two ends of the first conductive heat generating body respectively form a gap with the first magnetic conducting ring
  • the two ends are connected to each other and are located inside the first magnetically conductive ring
  • the second magnetic conductive ring extends along the circumference of the cover to form a ring having a notch
  • the two ends of the second conductive tropical It is connected to both ends of the notch of the second magnetically conductive ring and is located inside the second magnetically conductive ring.
  • the first conductive hair tropics are uniformly arranged on the pan body, and the second conductive hair tropics are evenly arranged on the cover body.
  • the first conductive hair dryer is circumferentially extended on the pot body, and the second conductive hair dryer is circumferentially extended on the lid body.
  • any one of the first conductive hair tropics and the second conductive hair tropics includes a plurality of spiral rings spaced apart from each other, each of the spiral rings being along the insulating cover
  • the circumferential direction extends from the outer to the inner spiral, and the plurality of spiral loops are spirally and nested, and the plurality of spiral loops are connected in series.
  • the first conductive hair tropics and the second conductive hair tropics each include two of the spiral loops connected at an inner end.
  • the first conductive tropical and the second conductive tropical are both magnetically conductive and tropical.
  • the width of the first magnetically conductive ring is greater than the width of the first conductive tropical hair
  • the width of the second magnetic conductive ring is greater than the width of the second conductive tropical.
  • the pot body is a ceramic pot body
  • the lid body is a ceramic lid body
  • At least one of the first conductive hair tropic and the first magnetic conductive ring includes a plurality, each of the first conductive hair tropics and at least one of the first magnetic conductive ring strings Forming a loop, and each of the first magnetically conductive loops is connected in series with at least one of the first conductive tropical belts, and at least one of the second conductive tropical and the second magnetically conductive loops comprises Multiple, each of the second conductive hair tropics is connected in series with at least one of the second magnetic conductive rings Forming a loop, and each of the second magnetically permeable rings is connected in series with at least one of the second conductive tropics to form a loop.
  • the first conductive hair tropics include a plurality of, the plurality of first conductive tropics are connected in parallel to form a loop in series with the first magnetically permeable ring, and the second conductive tropics include A plurality of the plurality of second conductive hairs are connected in parallel to form a loop in series with the second magnetically conductive ring.
  • the first magnetic conductive ring includes a plurality of, and the plurality of the first magnetic conductive rings are connected in parallel to form a loop with the first conductive tropical connection, and the second magnetic conductive ring includes And a plurality of the second magnetically conductive rings are connected in parallel to form a loop with the second conductive tropical connection.
  • the first magnetic conductive ring includes a plurality of mutually independent ones
  • the first conductive tropical light includes a plurality of ones that are independent of each other and one-to-one corresponding to the plurality of the first magnetic conductive rings
  • each Each of the first conductive hair tropics is connected in series with the corresponding first magnetic conductive ring to form a loop
  • the second magnetic conductive ring comprises a plurality of independent ones
  • the second conductive tropical tropics comprise mutually independent
  • a plurality of the plurality of second magnetic flux guiding rings are arranged in a one-to-one correspondence
  • each of the second conductive natural heat sources is connected in series with the corresponding second magnetic conductive ring to form a loop.
  • the first magnetically permeable ring is a plurality of inner and outer nested arrangements
  • the second magnetically permeable ring is a plurality of inner and outer nested arrangements
  • the first magnetically permeable ring and the The second magnetic flux guiding ring is in one-to-one correspondence
  • the corresponding first magnetic conductive ring and the second magnetic conductive ring are vertically opposed to each other
  • the induction coil comprises a plurality of inner and outer nested arrangements, and each set of opposite first magnetic conductive rings At least one of the induction coils is disposed between the second magnetically conductive ring.
  • the plurality of induction coils are energized or de-energized independently of one another.
  • a total length of the first conductive hair tropics is greater than a length of the first conductive ring extending in a circumferential direction, and a total length of the second conductive tropics is greater than the second magnetic conductive ring The length extending in the circumferential direction.
  • the cooking appliance is a grilling machine.
  • FIG. 1 is a schematic view of a cooking appliance in accordance with an embodiment of the present invention.
  • Figure 2 is a schematic view of the first magnetically conductive ring and the first conductive heat generating body on the pot body shown in Figure 1;
  • FIG. 3 is a cross-sectional view of a first magnetically permeable ring and a second magnetically permeable ring and an induction coil, in accordance with one embodiment of the present invention
  • FIG. 4 is a cross-sectional view of a first magnetically permeable ring and a second magnetically permeable ring and an induction coil in accordance with another embodiment of the present invention.
  • a cooking appliance 100 in accordance with an embodiment of the present invention will now be described with reference to Figures 1-4.
  • a cooking appliance 100 includes a pot body 1, a cover body 2, and an induction coil 3.
  • the pot body 1 is provided with a first magnetic conductive ring 11 and a first conductive heat generating belt 12, and the first conductive heat generating belt 12 is connected with the first magnetic conductive ring 11 to form a closed loop;
  • the cover body 2 can openly cover the pot Body 2, the cover body 2 is provided with a second magnetic conductive ring 21 and a second conductive tropical belt 22, the second conductive tropical belt 22 is connected with the second magnetic conductive ring 21 to form a closed loop;
  • the induction coil 3 is arranged at the first magnetic conductive Between the ring 11 and the second magnetically conductive ring 21, and the induction coil 3 is opposite to the first magnetically conductive ring 11 and the second magnetically conductive ring 21, respectively.
  • the inductive coil 3 referred to in the present invention is respectively opposite to the first magnetic conductive ring 11 and the second magnetic conductive ring 21, and refers to the induction coil 3 generated when the induction coil 3 is energized.
  • the induced magnetic field will cover at least a portion of the first magnetically permeable ring 11 and the second magnetically permeable ring 21, respectively.
  • the induction coil 3 When an alternating current is passed through the induction coil 3, the induction coil 3 produces a variable magnetic field, and the alternating magnetic field passes through the first magnetically permeable ring 11 and the second magnetically permeable ring 21, respectively, so as to be respectively in the first magnetically permeable ring 11 and A potential difference is formed at both ends of the second magnetic flux ring 21, and the first conductive heat generating belt 12 and the first magnetic conductive ring 11 are connected in series to form a closed loop, so that the first conductive heat generating belt 12 and the first magnetic conductive ring 11 can be closed. A current is formed in the loop.
  • the second conductive heat generating belt 22 and the second magnetic conductive ring 21 are connected in series to form a closed loop, a current can be formed in the closed loop of the second conductive heat generating belt 22 and the second magnetic conductive ring 21, thereby The place where the electric current passes generates heat, and the pot body 1 and the lid body 2 are heated. Thereby, stereoscopic uniform heating of the cooking appliance 100 can be achieved.
  • the induction coil 3 is disposed between the first magnetically permeable ring 11 and the second magnetically permeable ring 21, and when the induction coil 3 is energized, the first magnetically permeable ring 11 and the second can be simultaneously An induced electromotive force is generated on the magnetic flux ring 21, and at the same time, the pot body 1 and the lid body 2 are heated, thereby not only reducing the use of the induction coil 3, but also saving cost and improving The utilization of electromagnetic induction energy can also make the cooker 100 thinner.
  • the first magnetic flux ring 11 has an arc shape with an opening upward
  • the second magnetic ring 21 has an arc shape with an open downward cross section
  • the induction coil 3 Located inside the first magnetically permeable ring 11 and the second magnetically permeable ring 21, that is, the induction coil 3 is wrapped between the first magnetically permeable ring 11 and the second magnetically permeable ring 21, thereby effectively avoiding magnetic lines of force
  • the leakage further improves the utilization of electromagnetic induction energy.
  • the inner circumference of the first magnetic flux ring 11 and the inner circumference of the second magnetic flux ring 21 are vertically opposed and spaced apart, and the outer circumference of the first magnetic flux ring 11 and the second guide The outer circumference of the magnetic ring 21 is opposed to each other and spaced apart.
  • a slit having a size ranging from 1 mm to 20 mm is formed between the inner circumference of the first magnetic flux ring 11 and the inner circumference of the second magnetic flux ring 21 and between the outer circumference of the first magnetic flux ring 11 and the outer circumference of the second magnetic flux ring 21.
  • the cover 2 is in the shape of a transparent cover 2 and the second conductive tropics 22 are in the form of a transparent strip.
  • the lid body 2 can be visualized, and at the same time, since the second conductive strip can generate heat, the probability that the lid body 2 forms dew due to steam can be effectively reduced, and it is more advantageous to observe the cooking condition of the conditioner in the cooking appliance 100.
  • cover body 2 is a glass cover body 2
  • the second conductive hair growth zone 22 is an ITO (conductive glass) conductive tape, whereby the overall visualization of the cover body 2 can be realized, and the cooking condition in the cooking appliance 100 can be easily observed.
  • ITO conductive glass
  • the distance between the induction coil 3 and the first magnetically permeable ring 11 is not greater than the distance between the induction coil 3 and the second magnetically permeable ring 21, thereby ensuring the pot body. 1 can get enough induction energy to cook food.
  • the first magnetic conductive ring 11 extends along the circumference of the pot body 1 to form a ring shape having a notch, and the two ends of the first conductive heat-producing belt 12 are respectively The two ends of the gap of the magnetic flux ring 11 are connected and located inside the first magnetic flux ring 11, thereby reducing the influence of the first magnetic flux ring 11 on the intermediate position of the pot body 1 and causing the heat in the middle position of the pot body 1. More even.
  • the second magnetic flux guiding ring 21 extends along the circumference of the cover body 2 to form a ring having a notch.
  • the two ends of the second conductive heat generating belt 22 are respectively connected to the two ends of the notch of the second magnetic conductive ring 21 and are located at the second magnetic conductive portion.
  • the inner side of the ring 21 can thereby reduce the influence of the second magnetic flux ring 21 on the intermediate position of the lid body 2, and the heat generation at the intermediate position of the lid body 2 can be more uniform.
  • the first conductive hair tropics 12 are evenly arranged on the pot body 1 to make the heat on the pot body 1 more uniform, and the second conductive tropics 22 Evenly arranged on the cover 2, thereby being The heat on the cover 2 is made more uniform.
  • the uniform arrangement of the first conductive hair tropics 12 means that the width and the gap of the first conductive tropics 12 are substantially the same within the coverage of the first conductive tropics 12, thereby achieving uniform heating of the pot body 1;
  • the uniform arrangement of the second conductive hair tropics 22 means that the width and the gap of the second conductive tropics 22 are substantially the same within the coverage of the second conductive tropics 22, thereby achieving uniform heating of the cover 2.
  • the first conductive hair dryer 12 is circumferentially extended on the pot body 1 and the second conductive hair dryer 22 is circumferentially extended on the lid body 2.
  • the first conductive hair tropics 12 and the second conductive tropics 22 can respectively adapt to the different shapes of the pot body 1 and the lid body 2, and at the same time, the first conductive hair tropics 12 can be more evenly distributed on the pot body 1.
  • the distribution of the second conductive hair tropics 22 on the cover body 2 is more uniform, and the heating dead zone is avoided, thereby further improving the uniformity of heating of the pan body 1 and the cover body 2.
  • any one of the first conductive tropical belt 12 and the second conductive tropical belt 22 includes a plurality of spiral rings spaced apart from each other, each spiral ring extending from the outer to the inner spiral along the circumferential direction of the insulating cover 2
  • the plurality of spiral loops are spirally arranged in a nest and are arranged in a nest, and the plurality of spiral loops are connected in series. In this way, by a plurality of spiral rings arranged in a nest, the number of turns of the spiral ring can be increased without changing the length of the single spiral ring, thereby making the heating of the pot body 1 and the cover body 2 more uniform, respectively.
  • the plurality of spiral loops are connected in series, so that the first magnetic conductive ring 11 and the first conductive heat generating belt 12 form a closed current loop, and the second magnetic conductive loop 21 and the second conductive heat generating fluid 22 form a closed current loop, thereby passing current Heat is generated to heat the pot body 1 and the lid body 2.
  • the first conductive tropical zone 12 and the second conductive tropical zone 22 each include two spiral rings connected at the inner ends.
  • the structure of the first conductive hair tropics 12 and the second conductive tropics 22 can be simplified while improving the uniform heating of the pot body 1 and the lid body 2.
  • the first conductive hairspring 12 and the second conductive hair dryer 22 are both magnetically conductive and tropical. Thereby, the induced magnetic field generated by the induction coil 3 can be prevented from acting on the first conductive heat-generating tropics 12 and the second conductive heat-generating tropics 22, and the uniformity of heat of the pot body 1 and the lid body 2 can be ensured.
  • the width of the first magnetically permeable ring 11 is greater than the width of the first conductive tropics 12, and the width of the second magnetically permeable ring 21 is greater than the width of the second electrically conductive tropics 22.
  • both the pan 1 and the cover 2 are made of a non-magnetically conductive, non-conductive material.
  • the pot body may be a ceramic pot body
  • the cover body may be a ceramic cover body, thereby preventing the induced magnetic field generated by the induction coil 3 from affecting the pot body 1 and the cover body 2, thereby ensuring uniform heating of the pot body 1 and the cover body 2.
  • sexuality improves the safety of the cooking appliance 100 during use.
  • At least one of the first conductive tropical 12 and the first magnetically conductive ring 11 comprises That is to say, the first conductive hair tropics 12 may include a plurality of, the first magnetic conductive ring 11 may also include a plurality of, and the first conductive tropics 12 and the first magnetic conductive rings 11 may each include a plurality.
  • Each of the first conductive hair tropics 12 and the at least one first magnetic conductive ring 11 are connected in series to form a loop, that is, each of the first conductive tropics 12 may be connected in series with only one first magnetic conductive ring 11 to form a loop.
  • a plurality of first magnetically conductive rings 11 may be connected in series to form a loop; and each of the first magnetic conductive rings 11 is connected in series with at least one first conductive heat generating belt 12 to form a loop, that is, each first magnetic conductive ring 11 may form a loop only with one first conductive heat to be connected in series, or may form a loop in series with a plurality of first conductive hairs 12 . Thereby, the uniformity of heating of the pot body 1 can be further improved.
  • At least one of the second conductive tropics 22 and the second magnetically permeable ring 21 includes a plurality of, that is, the second conductive tropics 22 may include a plurality, and the second magnetically permeable ring 21 may also include a plurality of It is the second conductive hair tropics 22 and the second magnetic conductive ring 21 each including a plurality of.
  • Each of the second conductive tropics 22 and the at least one second magnetic permeable ring 21 are connected in series to form a loop, that is, each of the second conductive tropics 22 may be connected in series with only one second magnetically permeable ring 21 to form a loop.
  • a plurality of second magnetically conductive rings 21 may be connected in series to form a loop; and each of the second magnetic conductive rings 21 is connected in series with at least one second conductive heat generating belt 22 to form a loop, that is, each second magnetically conductive ring 21 may form a loop only with one second conductive heat to be connected in series, or may be connected in series with a plurality of second conductive heat sources 22. Thereby, the uniformity of heating of the lid body 2 can be further improved.
  • the first conductive hair tropics 12 includes a plurality of, and the plurality of first conductive tropics 12 are connected in series with the first magnetic conductive ring 11 to form a loop, and the second conductive tropics 22 include a plurality of The conductive hair tropics 22 are connected in parallel and connected in series with the second magnetic conductive ring 21 to form a loop.
  • the heat of the pan 1 and the lid 2 can be made more uniform.
  • the first magnetic flux ring 11 includes a plurality of, and the plurality of first magnetic conductive rings 11 are connected in parallel to form a loop with the first conductive heat generating belt 12, and the second magnetic conductive ring 21 includes a plurality of After the two magnetic rings 21 are connected in parallel, they are connected to the second conductive heat source 22 to form a loop.
  • the current in the first conductive hair tropics 12 and the second conductive tropics 22 can be increased, and the heating efficiency of the pot body 1 and the lid body 2 can be improved.
  • the first magnetic conductive ring 11 includes a plurality of mutually independent ones
  • the first conductive natural heating 12 includes a plurality of ones that are independent of each other and one-to-one corresponding to the plurality of first magnetic conductive rings 11
  • each of the first conductive tropical waves 12 is connected in series with the corresponding first magnetic flux ring 11 to form a loop, thereby further improving the uniformity of heating of the pot body 1.
  • the second magnetic conductive ring 21 includes a plurality of mutually independent ones, and the second conductive tropical heat source 22 includes a plurality of ones that are independent of each other and one-to-one corresponding to the plurality of second magnetic conductive rings 21, and each of the second conductive tropical regions 22 corresponds to
  • the second magnetically permeable ring 21 is connected in series to form a loop, thereby further improving the uniformity of heating of the cover 2.
  • the first magnetically conductive ring 11 is a plurality of inner and outer nested arrangements
  • the second magnetic conductive ring 21 is a plurality of inner and outer nested arrangements
  • the first magnetic conductive ring 11 and the second magnetic conductive ring 21 are one by one.
  • the first magnetically conductive ring 11 and the second magnetically conductive ring 21 are vertically opposed to each other
  • the induction coil 3 includes a plurality of inner and outer nested arrangements, and each set of opposite first magnetically conductive rings 11 and second magnetically conductive At least one induction coil 3 is provided between the rings 21.
  • the plurality of induction coils 3 are energized or de-energized independently of each other. Thus, when different functions of the cooking appliance 100 are used, a single induction coil 3 or a plurality of induction coils 3 can be energized to achieve heating requirements for different functions.
  • the total length of the first conductive hair tropics 12 is greater than the length of the first magnetic conductive ring 11 extending in the circumferential direction, and the total length of the second conductive tropics 22 is greater than the circumference of the second magnetic conductive ring 21 The length of the extension.
  • a cooking appliance 100 in accordance with one embodiment of the present invention will now be described with reference to Figures 1-4.
  • the cooking appliance 100 is a grilling machine.
  • the grilling machine includes an upper baking pan (such as the lid body 2 shown in FIG. 1), a lower baking pan (such as the pan body 1 shown in FIG. 1), and an induction coil 3.
  • the first conductive ring 11 and the first conductive heat-producing belt 12 are disposed on the lower baking tray, wherein the first magnetic conductive ring 11 is located outside the first conductive heat-producing belt 12, and the first conductive The hair tropics 12 are evenly arranged on the lower baking pan, the first magnetic conductive ring 11 is formed as a ring having a notch, and the first conductive tropics 12 includes two co-directional spiral rings arranged in series and nested at the inner ends, two co-directional spirals The outer ends of the rings are respectively connected to the two ends of the first magnetically conductive ring 11.
  • the upper baking pan is made of transparent glass material
  • the second conductive hair tropic 22 is also made of transparent conductive glass (for example, ITO) to visualize the entire baking pan, and because the second conductive tropics 22 itself can generate heat. It greatly reduces the chance that the upper baking sheet will form dew due to steam, which is more conducive to observe the cooking condition of the conditioning material.
  • the cross section of the first magnetic conductive ring 11 has an arc shape with an opening upward
  • the interface of the second magnetic conductive ring 21 has an arc with an opening downward.
  • the outer circumferences of a magnetically conductive ring 11 and a second magnetically conductive ring 21 are vertically opposed, and the inner circumferences of the first magnetically conductive ring 11 and the second magnetically conductive ring 21 are vertically opposed, and the outer circumference of the first magnetically conductive ring 11 and the second A slit having a size ranging from 1 mm to 20 mm is formed between the outer peripheral edge of the magnetic flux ring 21 and the inner peripheral edge of the first magnetic conductive ring 11 and the inner peripheral edge of the second magnetic conductive ring 21.
  • the induction coil 3 is disposed inside the first magnetically permeable ring 11 and the second magnetically permeable ring 21 to avoid leakage of magnetic lines of force and further improve utilization of electromagnetic induction energy.
  • the distance between the induction coil 3 and the first magnetically conductive ring 11 is less than or equal to the distance between the induction coil 3 and the second magnetically conductive ring 21, so as to ensure that the lower baking tray can obtain sufficient induction energy to grill the food.
  • the induction coil 3 After the induction coil 3 is connected to the alternating current, since the induction coil 3 is opposite to the first magnetically conductive ring 11 and the second magnetically conductive ring 21, the second conductive tropical zone 22 located on the upper baking plate passes through the second upper baking plate.
  • the induced electromotive force at both ends of the magnetic flux ring 21 generates an induced current to heat the upper baking pan; the first conductive tropical fin 12 located in the lower baking pan passes through the first magnetic conductive ring of the lower baking pan
  • the induced electromotive force at both ends of the 11 produces an induced current to heat the lower baking pan.
  • the grilling machine of the embodiment of the present invention when the induction coil 3 is energized, heat generation of the upper and lower baking trays can be simultaneously achieved, thereby greatly reducing the cost, and the grilling machine can also be made thinner and the utilization ratio of the electromagnetic induction can be made. Also higher.
  • the first magnetic conductive ring 11 and the second magnetic conductive ring 21 are respectively disposed at the periphery of the baking tray of the grilling machine, and the first conductive tropical belt 12 and the second conductive tropical belt 22 are spirally formed for the loop. Main heating, thereby facilitating the uniform heating of the grilling zone as the main heating.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, electrical connection, or communication; can be directly connected, or indirectly connected through an intermediate medium, can be the internal connection of two components or the interaction of two components .
  • installation can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
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Abstract

一种烹饪器具(100)，包括：锅体(1)、盖体(2)和感应线圈(3)。锅体(1)上设有相连且形成闭合回路第一导磁环(11)和第一导电发热带(12)；盖体(2)上设有相连且形成闭合回路的第二导电发热带(22)与第二导磁环(21)；感应线圈(3)与第一导磁环(11)和第二导磁环(21)相对。

Description

烹饪器具 技术领域
本发明涉及厨房电器技术领域，尤其是涉及一种烹饪器具。
背景技术
烹饪器具(如饭煲、煎烤机等)一般具有立体加热，即在锅体(或者下烤盘)底部设置加热元件的同时，往往也会在盖体(上烤盘)上设置加热元件，实现立体加热，从而使调理物的上下面受热均匀，口感较好。但是这样就要求设置有两个或两个以上的加热元件，不但加大了制造的成本，也造成了生产出来的产品过于庞大，不适应市场的要求。
烹饪器具无论是IH(电磁)加热还是电热管加热，都是与感应线圈或者电热管相对的部位受热较多，距离加热源较远的部位受热较少，这样就会造成了加热区域的不均匀。为了解决该问题，相关技术中采用了在加热源与调理物之间加设一层热扩散层(通常由导热性较强的金属做成，如铝)，通过热扩散层把热量均匀地上传给调理物，以减少调理物受热的差异，但这并没有从本质上解决调理物的受热不均。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明在于提出一种烹饪器具，所述烹饪器具可以实现立体加热且加热均匀。
根据本发明的烹饪器具，包括：锅体，所述锅体上设有第一导磁环和第一导电发热带，所述第一导电发热带与所述第一导磁环相连形成闭合回路；盖体，所述盖体可打开地封盖所述锅体，所述盖体上设有第二导磁环和第二导电发热带，所述第二导电发热带与所述第二导磁环相连形成闭合回路；感应线圈，所述感应线圈设在所述第一导磁环和所述第二导磁环之间，且所述感应线圈分别与所述第一导磁环和所述第二导磁环相对。
根据本发明的烹饪器具，感应线圈设置在第一导磁环和第二导磁环之间，当感应线圈通电时，可以同时在第一导磁环和第二导磁环上产生感应电动势，并同时对锅体和盖体加热，由此不仅可以减少使用感应线圈，节约成本，提高电磁感应能量的利用率，还可以使烹饪器具做得更薄。
根据本发明的一个示例，所述第一导磁环的截面呈开口向上的弧形，所述第二导磁环的截面呈开口向下的弧形，且所述感应线圈位于所述第一导磁环和所述第二导磁环的内侧。
根据本发明的一个示例，所述第一导磁环的内周沿和第二导磁环的内周沿上下相对且间隔开，且所述第一导磁环的外周沿与所述第二导磁环的外周沿上下相对且间隔开。
根据本发明的一个示例，所述第一导磁环的内周沿与所述第二导磁环的内周沿之间以及所述第一导磁环的外周沿与所述第二导磁环的外周沿之间均形成有尺寸在1毫米到20毫米范围内的缝隙。
根据本发明的一个示例，所述第一导磁环的内周沿与所述第二导磁环的内周沿之间以及所述第一导磁环的外周沿与所述第二导磁环的外周沿之间均由隔离件隔开。
根据本发明的一个示例，所述盖体为透明盖体形状，且所述第二导电发热带为透明的带状。
根据本发明的一个示例，所述盖体为玻璃盖体，且所述第二导电发热带为ITO导电带。
根据本发明的一个示例，所述感应线圈与所述第一导磁环之间的距离不大于所述感应线圈与所述第二导磁环之间的距离。
根据本发明的一个示例，所述第一导磁环沿所述锅体的周沿延伸形成具有缺口的环形，所述第一导电发热带的两端分别与所述第一导磁环的缺口处的两端相连并位于所述第一导磁环的内侧，所述第二导磁环沿所述盖体的周沿延伸形成具有缺口的环形，所述第二导电发热带的两端分别与所述第二导磁环的缺口处的两端相连并位于所述第二导磁环的内侧。
根据本发明的一个示例，所述第一导电发热带在所述锅体上均匀布置，且所述第二导电发热带在所述盖体上均匀布置。
根据本发明的一个示例，所述第一导电发热带在所述锅体上迂回延伸，且所述第二导电发热带在所述盖体上迂回延伸。
根据本发明的一个示例，所述第一导电发热带和所述第二导电发热带中任一个均包括相互间隔开的多个螺旋环，每个所述螺旋环均沿所述绝缘盖体的周向由外到内螺旋延伸，多个所述螺旋环同向螺旋且嵌套设置，多个所述螺旋环串联。
根据本发明的一个示例，所述第一导电发热带和所述第二导电发热带均包括内端相连的两个所述螺旋环。
根据本发明的一个示例，所述第一导电发热带和所述第二导电发热带均为隔磁导电发热带。
根据本发明的一个示例，所述第一导磁环的宽度大于所述第一导电发热带的宽度，所述第二导磁环的宽度大于所述第二导电发热带的宽度。
根据本发明的一个示例，所述锅体为陶瓷锅体，且所述盖体为陶瓷盖体。
根据本发明的一个示例，所述第一导电发热带和所述第一导磁环中的至少一个包括多个，每个所述第一导电发热带与至少一个所述第一导磁环串接形成回路，且每个所述第一导磁环均与至少一个所述第一导电发热带串接形成回路，所述第二导电发热带和所述第二导磁环中的至少一个包括多个，每个所述第二导电发热带与至少一个所述第二导磁环串接 形成回路，且每个所述第二导磁环均与至少一个所述第二导电发热带串接形成回路。
根据本发明的一个示例，所述第一导电发热带包括多个，多个所述第一导电发热带并联后与所述第一导磁环串接形成回路，所述第二导电发热带包括多个，多个所述第二导电发热带并联后与所述第二导磁环串接形成回路。
根据本发明的一个示例，所述第一导磁环包括多个，且多个所述第一导磁环并联后与所述第一导电发热带连接形成回路，所述第二导磁环包括多个，且多个所述第二导磁环并联后与所述第二导电发热带连接形成回路。
根据本发明的一个示例，所述第一导磁环包括相互独立的多个，所述第一导电发热带包括相互独立且与多个所述第一导磁环一一对应的多个，每个所述第一导电发热带均与对应的所述第一导磁环串接形成回路，所述第二导磁环包括相互独立的多个，所述第二导电发热带包括相互独立且与多个所述第二导磁环一一对应的多个，每个所述第二导电发热带均与对应的所述第二导磁环串接形成回路。
根据本发明的一个示例，所述第一导磁环为内外嵌套布置的多个，所述第二导磁环为内外嵌套布置的多个，且所述第一导磁环与所述第二导磁环一一对应，且相互对应的第一导磁环和第二导磁环上下相对，所述感应线圈包括内外嵌套布置的多个，且每组相对的第一导磁环和第二导磁环之间均设有至少一个所述感应线圈。
根据本发明的一个示例，多个所述感应线圈相互独立地通电或断电。
根据本发明的一个示例，所述第一导电发热带的总长度大于所述第一导磁环沿周向延伸的长度，所述第二导电发热带的总长度大于所述第二导磁环沿周向延伸的长度。
根据本发明的一个示例，所述烹饪器具为煎烤机。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
图1是根据本发明实施例的烹饪器具的示意图；
图2是图1中所示的锅体上的第一导磁环和第一导电发热带的示意图；
图3是根据本发明一个实施例的第一导磁环和第二导磁环与感应线圈的剖视图；
图4是根据本发明另一个实施例的第一导磁环和第二导磁环与感应线圈的剖视图。
附图标记：
烹饪器具100，
锅体1，第一导磁环11，第一导电发热带12，
盖体2，第二导磁环21，第二导电发热带22，
感应线圈3。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下文的公开提供了许多不同的实施例或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或字母。这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施例和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的可应用于性和/或其他材料的使用。
下面参考图1-图4描述根据本发明实施例的烹饪器具100。
如图1所示，根据本发明实施例的烹饪器具100，包括：锅体1、盖体2和感应线圈3。
具体地，锅体1上设有第一导磁环11和第一导电发热带12，第一导电发热带12与第一导磁环11相连形成闭合回路；盖体2可打开地封盖锅体1，盖体2上设有第二导磁环21和第二导电发热带22，第二导电发热带22与第二导磁环21相连形成闭合回路；感应线圈3设在第一导磁环11和第二导磁环21之间，且感应线圈3分别与第一导磁环11和第二导磁环21相对。
其中，本领域技术人员可以理解的是，本发明所称的感应线圈3分别与第一导磁环11和第二导磁环21相对是指：在感应线圈3通电时，感应线圈3产生的感应磁场将分别覆盖第一导磁环11和第二导磁环21的至少一部分。
当感应线圈3内有交变电流通过时，感应线圈3产交变磁场，交变磁场分别穿过第一导磁环11和第二导磁环21，从而分别在第一导磁环11和第二导磁环21的两端形成电势差，由于第一导电发热带12与第一导磁环11串接形成闭合回路，因此可以在第一导电发热带12与第一导磁环11的闭合回路中形成电流，由于第二导电发热带22与第二导磁环21串接形成闭合回路，因此可以在第二导电发热带22与第二导磁环21的闭合回路中形成电流，从而在电流经过的地方产生热量，使锅体1和盖体2加热。由此可以实现烹饪器具100的立体均匀加热。
根据本发明实施例的烹饪器具100，感应线圈3设置在第一导磁环11和第二导磁环21之间，当感应线圈3通电时，可以同时在第一导磁环11和第二导磁环21上产生感应电动势，并同时对锅体1和盖体2加热，由此不仅可以减少使用感应线圈3，节约成本，提高 电磁感应能量的利用率，还可以使烹饪器100具做得更薄。
在本发明的一个实施例中，如图4所示，第一导磁环11的截面呈开口向上的弧形，第二导磁环21的截面呈开口向下的弧形，且感应线圈3位于第一导磁环11和第二导磁环21的内侧，也就是说，感应线圈3包覆在第一导磁环11和第二导磁环21之间，由此可以有效地避免磁力线的泄漏，进一步提高电磁感应能量的利用率。
进一步地，如图4所示，第一导磁环11的内周沿和第二导磁环21的内周沿上下相对且间隔开，且第一导磁环11的外周沿与第二导磁环21的外周沿上下相对且间隔开。由此可以在避免磁力线泄漏和提高电磁感应能量利用率的前提下，避免第一导磁环11和第二导磁环21之间发生干涉。
可选地，第一导磁环11的内周沿与第二导磁环21的内周沿之间以及第一导磁环11的外周沿与第二导磁环21的外周沿之间均形成有尺寸在1毫米到20毫米范围内的缝隙。由此，可以减少磁感线的泄漏，提高电磁感应能量的利用率。
可选地，第一导磁环11的内周沿与第二导磁环21的内周沿之间以及第一导磁环11的外周沿与第二导磁环21的外周沿之间均由隔离件隔开。由此可以有效地避免第一导磁环11和第二导磁环21之间发生干涉，保证烹饪器具100可以安全正常使用。
在本发明的一个实施例中，盖体2为透明盖体2形状，且第二导电发热带22为透明的带状。由此，可以使盖体2可视化，同时，由于第二导电带可以发热，从而可以有效地减少盖体2因为蒸汽形成露水的几率，更有利于观察烹饪器具100内的调理物的烹饪情况。
进一步地，盖体2为玻璃盖体2，且第二导电发热带22为ITO(导电玻璃)导电带，由此可以实现盖体2的整体可视化，便于观察烹饪器具100内的烹饪情况。
在本发明的一个实施例中，参照图3，感应线圈3与第一导磁环11之间的距离不大于感应线圈3与第二导磁环21之间的距离，由此可以保证锅体1能够获得足够的感应能量烹饪食物。
在本发明的一个实施例中，如图1和图2所示，第一导磁环11沿锅体1的周沿延伸形成具有缺口的环形，第一导电发热带12的两端分别与第一导磁环11的缺口处的两端相连并位于第一导磁环11的内侧，由此可以减少第一导磁环11对锅体1中间位置的影响，使锅体1中间位置的发热更为均匀。第二导磁环21沿盖体2的周沿延伸形成具有缺口的环形，第二导电发热带22的两端分别与第二导磁环21的缺口处的两端相连并位于第二导磁环21的内侧，由此可以减少第二导磁环21对盖体2的中间位置的影响，使盖体2中间位置的发热更为均匀。
在本发明的一个实施例中，如图1和图2所示，第一导电发热带12在锅体1上均匀布置，以使锅体1上的受热更加均匀，且第二导电发热带22在盖体2上均匀布置，由此可以 使盖体2上的受热更加均匀。
这里，第一导电发热带12均匀布置是指，在第一导电发热带12的覆盖范围内，第一导电发热带12各处的宽度以及间隙均大体相同，从而实现锅体1的均匀加热；第二导电发热带22均匀布置是指，在第二导电发热带22的覆盖范围内，第二导电发热带22各处的宽度以及间隙均大体相同，从而实现盖体2的均匀加热。
在本发明的一个实施例中，第一导电发热带12在锅体1上迂回延伸，且第二导电发热带22在盖体2上迂回延伸。由此，第一导电发热带12和第二导电发热带22分别可以适应不同形状的锅体1和盖体2，同时，还可以使第一导电发热带12在锅体1上分布更为均匀，且第二导电发热带22在盖体2上的分布更为均匀，避免存在加热盲区，从而进一步提高锅体1和盖体2的加热的均匀性。
可选地，第一导电发热带12和第二导电发热带22中任一个均包括相互间隔开的多个螺旋环，每个螺旋环均沿绝缘盖体2的周向由外到内螺旋延伸，多个螺旋环同向螺旋且嵌套设置，多个螺旋环串联。这样，通过嵌套设置的多个螺旋环，可以在不改变单个螺旋环长度的前提下，增加螺旋环的圈数，由此可以分别使得锅体1和盖体2的受热更加均匀，此外，多个螺旋环串联，可以使得第一导磁环11和第一导电发热带12形成闭合的电流回路，第二导磁环21和第二导电发热带22形成闭合的电流回路，从而在电流经过处产生热量，加热锅体1和盖体2。
可选地，第一导电发热带12和第二导电发热带22均包括内端相连的两个螺旋环。由此，可以在提高锅体1和盖体2受热均匀的前提下，简化第一导电发热带12和第二导电发热带22的结构。
在本发明的一个实施例中，第一导电发热带12和第二导电发热带22均为隔磁导电发热带。由此，可以避免感应线圈3产生的感应磁场作用在第一导电发热带12和第二导电发热带22上，保证锅体1和盖体2受热的均匀性。
在本发明的一个实施例中，第一导磁环11的宽度大于第一导电发热带12的宽度，第二导磁环21的宽度大于第二导电发热带22的宽度。由此，可以增大第一导磁环11和第二导磁环21两端所形成的感应电动势，提高加热效率，同时，还可以使盖体2和锅体1的受热更加均匀。
在本发明的一个实施例中，锅体1和盖体2均由非导磁非导电材料制成。例如锅体可以为陶瓷锅体，且盖体可以为陶瓷盖体，由此可以避免感应线圈3产生的感应磁场影响锅体1和盖体2，从而保证锅体1和盖体2受热的均匀性，提高烹饪器具100使用过程的安全性。
在本发明的一个实施例中，第一导电发热带12和第一导磁环11中的至少一个包括多 个，也就是说，第一导电发热带12可以包括多个，第一导磁环11也可以包括多个，还可以是第一导电发热带12和第一导磁环11均包括多个。每个第一导电发热带12与至少一个第一导磁环11串接形成回路，也就是说，每个第一导电发热带12可以仅与一个第一导磁环11串接形成回路，也可以与多个第一导磁环11串接形成回路；且每个第一导磁环11均与至少一个第一导电发热带12串接形成回路，也就是说，每个第一导磁环11可以仅与一个第一导电发热到串接形成回路，也可以与多个第一导电发热带12串接形成回路。由此可以进一步提高对锅体1加热的均匀性。
第二导电发热带22和第二导磁环21中的至少一个包括多个，也就是说，第二导电发热带22可以包括多个，第二导磁环21也可以包括多个，还可以是第二导电发热带22和第二导磁环21均包括多个。每个第二导电发热带22与至少一个第二导磁环21串接形成回路，也就是说，每个第二导电发热带22可以仅与一个第二导磁环21串接形成回路，也可以与多个第二导磁环21串接形成回路；且每个第二导磁环21均与至少一个第二导电发热带22串接形成回路，也就是说，每个第二导磁环21可以仅与一个第二导电发热到串接形成回路，也可以与多个第二导电发热带22串接形成回路。由此可以进一步提高对盖体2加热的均匀性。
可选地，第一导电发热带12包括多个，多个第一导电发热带12并联后与第一导磁环11串接形成回路，第二导电发热带22包括多个，多个第二导电发热带22并联后与第二导磁环21串接形成回路。由此，可以使锅体1和盖体2的受热更加均匀。
可选地，第一导磁环11包括多个，且多个第一导磁环11并联后与第一导电发热带12连接形成回路，第二导磁环21包括多个，且多个第二导磁环21并联后与第二导电发热带22连接形成回路。由此，可以增大第一导电发热带12和第二导电发热带22内的电流，提高锅体1和盖体2的加热效率。
可选地，第一导磁环11包括相互独立的多个，第一导电发热带12包括相互独立且与多个第一导磁环11一一对应的多个，每个第一导电发热带12均与对应的第一导磁环11串接形成回路，从而进一步提高对锅体1加热的均匀性。第二导磁环21包括相互独立的多个，第二导电发热带22包括相互独立且与多个第二导磁环21一一对应的多个，每个第二导电发热带22均与对应的第二导磁环21串接形成回路，从而进一步提高对盖体2加热的均匀性。
可选地，第一导磁环11为内外嵌套布置的多个，第二导磁环21为内外嵌套布置的多个，且第一导磁环11与第二导磁环21一一对应，且相互对应的第一导磁环11和第二导磁环21上下相对，感应线圈3包括内外嵌套布置的多个，且每组相对的第一导磁环11和第二导磁环21之间均设有至少一个感应线圈3。当每组相对的第一导磁环11和第二导磁环 21之间的感应线圈3通电时，相应的第一导磁环11和第二导磁环21的两端分别形成感应电动势，从而在与其串联的第一导电发热带12和第二导电发热带22上产生电流并发热。
进一步地，多个感应线圈3相互独立地通电或断电。由此，当使用烹饪器具100的不同功能时，可使单个感应线圈3或多个感应线圈3通电，从而实现不同功能下的加热需求。
在本发明的一个实施例中，第一导电发热带12的总长度大于第一导磁环11沿周向延伸的长度，第二导电发热带22的总长度大于第二导磁环21沿周向延伸的长度。由此，可以分别增大锅体1和盖体2的受热面积，从而进一步提高锅体1和盖体2受热的均匀性。
下面将参考图1-图4描述根据本发明一个实施例的烹饪器具100。
参照图1，烹饪器具100为煎烤机。其中，煎烤机包括上烤盘(如图1中所示的盖体2)、下烤盘(如图1中所示的锅体1)和感应线圈3。
具体地，如图2所示，下烤盘上设有第一导磁环11和第一导电发热带12，其中，第一导磁环11位于第一导电发热带12的外侧，第一导电发热带12在下烤盘上均匀布置，第一导磁环11形成为具有缺口的环形，第一导电发热带12包括内端串联且嵌套设置的两个同向螺旋环，两个同向螺旋环的外端分别与第一导磁环11的两端相连。
如图1所示，上烤盘上设有第二导磁环21和第二导电发热带22，其中，第二导磁环21位于第二导电发热带22的外侧，第二导电发热带22在上烤盘上均匀布置，第二导磁环21形成为具有缺口的环形，第二导电发热带22包括两个内端串联且嵌套设置的同向螺旋环，两个同向螺旋环的外端分别与第二导磁环21的两端相连。
优选地，上烤盘采用透明的玻璃材料，且第二导电发热带22也采用透明的导电玻璃(例如ITO)，以使整个上烤盘可视化，又因为第二导电发热带22本身可以发热，大大地减少了上烤盘因为蒸汽形成露水的机率，更利于观察调理物的烹饪情况。
如图4所示，当上烤盘盖设在下烤盘上时，第一导磁环11的截面呈开口向上的弧形，第二导磁环21的界面呈开口向下的弧形，第一导磁环11和第二导磁环21的外周沿上下相对，第一导磁环11和第二导磁环21的内周沿上下相对，第一导磁环11的外周沿与第二导磁环21的外周沿以及第一导磁环11的内周沿与第二导磁环21的内周沿之间形成有尺寸在1毫米到20毫米范围内的缝隙。感应线圈3设在第一导磁环11和第二导磁环21的内侧，以避免磁力线泄露，同时进一步提高电磁感应能量的利用率。且感应线圈3与第一导磁环11的距离小于或等于感应线圈3与第二导磁环21的距离，以保证下烤盘能够获得足够的感应能量煎烤食物。
当感应线圈3通上交变电流后，由于感应线圈3与第一导磁环11和第二导磁环21相对，位于上烤盘的第二导电发热带22则通过上烤盘的第二导磁环21两端的感应电动势产生感应电流，以加热上烤盘；位于下烤盘的第一导电发热带12则通过下烤盘的第一导磁环 11两端的感应电动势产生感应电流，以加热下烤盘。
根据本发明实施例的煎烤机，感应线圈3通电时，可以同时实现上下烤盘的发热，由此可以大大地节省了成本，同时煎烤机也可以做得更薄，电磁感应的利用率也更高。另外，将第一导磁环11和第二导磁环21分别设置在煎烤机上下烤盘的周边，把第一导电发热带12和第二导电发热带22做成螺旋状的回路用于主加热，由此有利于保证作为主加热的煎烤区发热均匀。
在本发明的描述中，需要理解的是，术语“中心”、“长度”、“宽度”、“厚度”、“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接，还可以是通信；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特 征进行结合和组合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (24)

  1. 一种烹饪器具，其特征在于，包括：
    锅体，所述锅体上设有第一导磁环和第一导电发热带，所述第一导电发热带与所述第一导磁环相连形成闭合回路；
    盖体，所述盖体可打开地封盖所述锅体，所述盖体上设有第二导磁环和第二导电发热带，所述第二导电发热带与所述第二导磁环相连形成闭合回路；
    感应线圈，所述感应线圈设在所述第一导磁环和所述第二导磁环之间，且所述感应线圈分别与所述第一导磁环和所述第二导磁环相对。
  2. 根据权利要求1所述的烹饪器具，其特征在于，所述第一导磁环的截面呈开口向上的弧形，所述第二导磁环的截面呈开口向下的弧形，且所述感应线圈位于所述第一导磁环和所述第二导磁环的内侧。
  3. 根据权利要求2所述的烹饪器具，其特征在于，所述第一导磁环的内周沿和第二导磁环的内周沿上下相对且间隔开，且所述第一导磁环的外周沿与所述第二导磁环的外周沿上下相对且间隔开。
  4. 根据权利要求3所述的烹饪器具，其特征在于，所述第一导磁环的内周沿与所述第二导磁环的内周沿之间以及所述第一导磁环的外周沿与所述第二导磁环的外周沿之间均形成有尺寸在1毫米到20毫米范围内的缝隙。
  5. 根据权利要求3或4所述的烹饪器具，其特征在于，所述第一导磁环的内周沿与所述第二导磁环的内周沿之间以及所述第一导磁环的外周沿与所述第二导磁环的外周沿之间均由隔离件隔开。
  6. 根据权利要求1-5任一项所述的烹饪器具，其特征在于，所述盖体为透明盖体形状，且所述第二导电发热带为透明的带状。
  7. 根据权利要求6所述的烹饪器具，其特征在于，所述盖体为玻璃盖体，且所述第二导电发热带为ITO导电带。
  8. 根据权利要求1-7中任一项所述的烹饪器具，其特征在于，所述感应线圈与所述第一导磁环之间的距离不大于所述感应线圈与所述第二导磁环之间的距离。
  9. 根据权利要求1-8中任一项所述的烹饪器具，其特征在于，所述第一导磁环沿所述锅体的周沿延伸形成具有缺口的环形，所述第一导电发热带的两端分别与所述第一导磁环的缺口处的两端相连并位于所述第一导磁环的内侧，所述第二导磁环沿所述盖体的周沿延伸形成具有缺口的环形，所述第二导电发热带的两端分别与所述第二导磁环的缺口处的两端相连并位于所述第二导磁环的内侧。
  10. 根据权利要求1-9中任一项所述的烹饪器具，其特征在于，所述第一导电发热带在所述锅体上均匀布置，且所述第二导电发热带在所述盖体上均匀布置。
  11. 根据权利要求1-10中任一项所述的烹饪器具，其特征在于，所述第一导电发热带在所述锅体上迂回延伸，且所述第二导电发热带在所述盖体上迂回延伸。
  12. 根据权利要求11所述的烹饪器具，其特征在于，所述第一导电发热带和所述第二导电发热带中任一个均包括相互间隔开的多个螺旋环，每个所述螺旋环均沿所述绝缘盖体的周向由外到内螺旋延伸，多个所述螺旋环同向螺旋且嵌套设置，多个所述螺旋环串联。
  13. 根据权利要求12所述的烹饪器具，其特征在于，所述第一导电发热带和所述第二导电发热带均包括内端相连的两个所述螺旋环。
  14. 根据权利要求1-13中任一项所述的烹饪器具，其特征在于，所述第一导电发热带和所述第二导电发热带均为隔磁导电发热带。
  15. 根据权利要求1-14中任一项所述的烹饪器具，其特征在于，所述第一导磁环的宽度大于所述第一导电发热带的宽度，所述第二导磁环的宽度大于所述第二导电发热带的宽度。
  16. 根据权利要求1-15中任一项所述的烹饪器具，其特征在于，所述锅体为陶瓷锅体，且所述盖体为陶瓷盖体。
  17. 根据权利要求1-16中任一项所述的烹饪器具，其特征在于，所述第一导电发热带和所述第一导磁环中的至少一个包括多个，每个所述第一导电发热带与至少一个所述第一导磁环串接形成回路，且每个所述第一导磁环均与至少一个所述第一导电发热带串接形成回路，所述第二导电发热带和所述第二导磁环中的至少一个包括多个，每个所述第二导电发热带与至少一个所述第二导磁环串接形成回路，且每个所述第二导磁环均与至少一个所述第二导电发热带串接形成回路。
  18. 根据权利要求17所述的烹饪器具，其特征在于，所述第一导电发热带包括多个，多个所述第一导电发热带并联后与所述第一导磁环串接形成回路，所述第二导电发热带包括多个，多个所述第二导电发热带并联后与所述第二导磁环串接形成回路。
  19. 根据权利要求17或18所述的烹饪器具，其特征在于，所述第一导磁环包括多个，且多个所述第一导磁环并联后与所述第一导电发热带连接形成回路，所述第二导磁环包括多个，且多个所述第二导磁环并联后与所述第二导电发热带连接形成回路。
  20. 根据权利要求17-19中任一项所述的烹饪器具，其特征在于，所述第一导磁环包括相互独立的多个，所述第一导电发热带包括相互独立且与多个所述第一导磁环一一对应的多个，每个所述第一导电发热带均与对应的所述第一导磁环串接形成回路，所述第二导磁环包括相互独立的多个，所述第二导电发热带包括相互独立且与多个所述第二导磁环一 一对应的多个，每个所述第二导电发热带均与对应的所述第二导磁环串接形成回路。
  21. 根据权利要求17-20中任一项所述的烹饪器具，其特征在于，所述第一导磁环为内外嵌套布置的多个，所述第二导磁环为内外嵌套布置的多个，且所述第一导磁环与所述第二导磁环一一对应，且相互对应的第一导磁环和第二导磁环上下相对，所述感应线圈包括内外嵌套布置的多个，且每组相对的第一导磁环和第二导磁环之间均设有至少一个所述感应线圈。
  22. 根据权利要求21所述的烹饪器具，其特征在于，多个所述感应线圈相互独立地通电或断电。
  23. 根据权利要求1-22中任一项所述的烹饪器具，其特征在于，所述第一导电发热带的总长度大于所述第一导磁环沿周向延伸的长度，所述第二导电发热带的总长度大于所述第二导磁环沿周向延伸的长度。
  24. 根据权利要求1-23中任一项所述的烹饪器具，其特征在于，所述烹饪器具为煎烤机。
PCT/CN2016/101196 2016-05-13 2016-09-30 烹饪器具 WO2017193531A1 (zh)

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