Heating device and cooking utensil

Abstract

The utility model discloses a heating device and a cooking utensil, the heating device comprises a main body and a heating assembly, the main body is provided with a heating area, and the heating area comprises a first heating area and a second heating area which is similar to a square ring and surrounds the first heating area; the heating assembly comprises an electromagnetic heating assembly and an infrared heating assembly, the electromagnetic heating assembly is arranged corresponding to the first heating area, the infrared heating assembly is arranged corresponding to the second heating area, and the main body is provided with a square-like heating area which is matched with shells of most cooking utensils in the market so as to have the heating area as large as possible; a larger heating area can be provided for larger cookware, the electromagnetic heating assembly conducts electromagnetic heating on the pot bottom arranged in the first heating area, the infrared heating assembly heats the pot wall arranged in the second heating area, and therefore the pot wall of the cookware is continuously heated, the experience feeling of a user during cooking is improved, and the cooking efficiency is improved. The heating device is large in heating area and capable of heating the wall of the frying pan.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking utensils, in particular to a heating device and a cooking utensil. Background Art

[0002] IH heating uses a coil disk as a magnetic field provider, and generates a heating current through the effect of the magnetic field on the pot. The heating current acts on the cooking pot to generate heat. Since the IH heating induction cooker uses electromagnetic heating, its thermal efficiency is much higher than that of traditional open flames, so the induction cooker has always been a popular cooking appliance for modern people.

[0003] However, in ordinary flat induction cookers, the magnetic field is stronger in the area closer to the surface of the wire coil, and the magnetic field weakens rapidly as it moves away from the surface of the wire coil. When this type of induction cooker heats the wok, the pot wall is tilted. Compared with the bottom, the pot wall gradually moves away from the bottom and is farther and farther away from the panel and the wire coil below the panel. Therefore, the magnetic field sensed by the pot wall decays rapidly with increasing height, and users can clearly feel that the food is heated slowly on the pot wall. Utility Model Content

[0004] The main purpose of the utility model is to provide a heating device and a cooking utensil, aiming to provide a heating device with a large heating area and capable of heating the wall of a frying pan.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a heating device, which comprises:

[0006] A main body, wherein a heating area is arranged on the main body, and the heating area includes a first heating area and a second heating area which is in a square ring shape and surrounds the first heating area;

[0007] A heating component is arranged on the main body and is used to heat the pot placed in the heating area. The heating component includes an electromagnetic heating component and an infrared heating component. The electromagnetic heating component is arranged corresponding to the first heating area, and the infrared heating component is arranged corresponding to the second heating area.

[0008] Optionally, the first heating area is configured to be square-shaped.

[0009] Optionally, the electromagnetic heating component includes an electromagnetic heating element arranged in a quasi-square shape, and the infrared heating component includes an infrared heating element arranged in a ring shape and ring-shaped around the periphery of the electromagnetic heating element.

[0010] Optionally, the main body includes a base and a panel covering the base, and the panel is provided with the heating area;

[0011] The heating component is arranged between the base and the panel.

[0012] Optionally, the panel includes a first plate portion and a second plate portion respectively arranged corresponding to the first heating area and the second heating area, and the second plate portion is arranged to protrude from the first plate portion on a side away from the base.

[0013] Optionally, a side of the second plate portion facing the base is concavely provided with an annular groove arranged around the periphery of the first plate portion;

[0014] The electromagnetic heating component is arranged corresponding to the first plate portion, and the infrared heating component is arranged in the annular groove.

[0015] Optionally, the electromagnetic heating assembly further comprises a mounting bracket for mounting the electromagnetic heating element, and the mounting bracket is arranged in a quasi-square shape.

[0016] Optionally, the infrared heating assembly further comprises an installation frame for installing the electromagnetic heating element, and the installation frame is arranged in a quasi-square shape.

[0017] Optionally, an annular mounting groove for mounting the infrared heating element is provided on the top of the mounting frame.

[0018] Optionally, the infrared heating assembly further comprises an annular heat insulating portion disposed in the annular mounting groove, an annular groove is formed on the top of the annular heat insulating portion, and the infrared heating element is disposed in the annular groove.

[0019] Optionally, the quasi-square shape includes one of a rectangle, a square and a racetrack shape.

[0020] The utility model also provides a cooking utensil, the cooking utensil comprising a heating device, the heating device comprising:

[0021] A main body, wherein a heating area is arranged on the main body, and the heating area includes a first heating area and a second heating area which is in a square ring shape and surrounds the first heating area;

[0022] A heating component is arranged on the main body and is used to heat the pot placed in the heating area. The heating component includes an electromagnetic heating component and an infrared heating component. The electromagnetic heating component is arranged corresponding to the first heating area, and the infrared heating component is arranged corresponding to the second heating area.

[0023] Optionally, the cooking utensil comprises an induction cooker or an induction range.

[0024] In the technical solution provided by the utility model, a first heating area and a second heating area in a square ring shape and surrounding the first heating area are arranged on the main body, forming a heating area that is square in shape as a whole, which can be adapted to the shells of most cooking utensils on the market to have a heating area as large as possible, and can provide a larger heating area for larger pots; at the same time, the bottom wall of the pot is placed on the main body, and the electromagnetic heating component heats the first heating area. The electromagnetic heating component generates a high-frequency alternating magnetic field acting on the bottom wall of the pot, so that the bottom of the pot induces eddy currents to generate heat, which can quickly heat the food in the pot, and the infrared heating component heats the bottom wall of the pot. The second heating area is heated, and the temperature is gradually increased while the electromagnetic heating component is working, and finally a stable heat output can be provided. Because the infrared heating component heats in the form of heat radiation, the heating area with a square-shaped periphery can not only efficiently heat the pot wall of a round-bottomed wok, but also can match a square pot, especially a larger square frying pan, to avoid the weak thermal field at the corner of the square frying pan, so that the pot wall of the pot can be continuously heated, so that the food at the bottom of the pot can be heated by the electromagnetic heating component, and the food at the pot wall can be heated by the infrared heating component, so as to provide a heating device with a large heating area and capable of heating the pot wall of a wok. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 A three-dimensional schematic diagram of an embodiment of a heating device provided by the utility model;

[0027] Figure 2 for Figure 1 Schematic diagram of the explosion of the heating device;

[0028] Figure 3 for Figure 2 An exploded schematic diagram of an electromagnetic heating component in FIG.

[0029] Figure 4 for Figure 2 An exploded schematic diagram of the infrared heating assembly in FIG.

[0030] Figure 5 for Figure 1 Cross-sectional view of the heating device in FIG.

[0031] Description of Figure Numbers:

[0032]

[0033]

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] In ordinary flat induction cookers, the magnetic field is stronger in the area closer to the surface of the wire coil, and the magnetic field weakens rapidly as it moves away from the surface of the wire coil. When this type of induction cooker heats the wok, the pot wall is tilted. Compared with the bottom, the pot wall gradually moves away from the bottom and farther away from the panel and the wire coil below the panel. Therefore, the magnetic field sensed by the pot wall decays rapidly with increasing height, and users can clearly feel that the food is heated slowly on the pot wall.

[0039] In order to solve the above problems, the utility model provides a heating device and a cooking utensil. Figure 1A three-dimensional schematic diagram of an embodiment of a heating device provided by the utility model; Figure 2 for Figure 1 Schematic diagram of the explosion of the heating device; Figure 3 for Figure 2 An exploded schematic diagram of an electromagnetic heating component in FIG. Figure 4 for Figure 2 An exploded schematic diagram of the infrared heating assembly in FIG. Figure 5 for Figure 1 Cross-sectional view of the heating device in FIG.

[0040] See also Figure 1 to Figure 2 The heating device includes a main body 1 and a heating component 2. The main body 1 is provided with a heating area a, and the heating area a includes a first heating area a1 and a second heating area a2 which is in a square ring shape and surrounds the first heating area a1; the heating component 2 is provided on the main body 1 to heat the pot placed in the heating area, and the heating component 2 includes an electromagnetic heating component 21 and an infrared heating component 22. The electromagnetic heating component 21 is provided corresponding to the first heating area a1, and the infrared heating component 22 is provided corresponding to the second heating area a2.

[0041] It should be noted that in the prior art, for the convenience of processing and subsequent assembly, and subject to certain technical limitations, the outer shell body 1 of most cooking utensils 100 such as general induction cookers or induction stoves is set to a square shape. In order to make the magnetic field distribution during electromagnetic heating more uniform, and to simplify the design and manufacturing, and to make wiring, connection and installation easier, the electromagnetic coil disk is generally set to a circular shape. Then, when the circular electromagnetic coil disk is set in the square body 1, the magnetic field coupled with the pot is circular. When the pot is a square frying pan or other square pot type, the pot can be adapted to the square shape of the outer shell body 1, but the circular electromagnetic coil disk cannot be fully coupled with the square pot. The square pot has the problem of being heated in the middle and not heated at the corners.

[0042] In the technical solution provided by the utility model, the main body 1 is provided with a first heating area a1, and a second heating area a2 which is in a square ring shape and surrounds the first heating area a1, forming a heating area a which is set as a square as a whole, which can be adapted to the shells of most cooking utensils 100 on the market, so as to have a heating area a as large as possible, and can provide a larger heating area a for larger pots; at the same time, the bottom wall of the pot is placed on the main body 1, and the electromagnetic heating component 21 is arranged corresponding to the first heating area a1, and the electromagnetic heating component 21 generates a high-frequency alternating magnetic field to induce eddy currents to generate heat in the bottom part of the pot of the pot in the first heating area a1, so as to quickly heat the food in the pot, and the infrared heating component 22 corresponds to the second heating area The hot area a2 is set, and the infrared heating component 22 heats the pot wall part of the pot in the second heating area a2, gradually heats up while the electromagnetic heating component 21 is working, and finally can provide stable heat output. Because the infrared heating component 22 heats in the form of thermal radiation, the heating area with a square-shaped periphery can not only efficiently heat the pot wall of round-bottomed woks, but also can match square pots, especially larger square frying pans, to avoid the weak thermal field at the corners of the square frying pan, and continuously heat the pot wall of the pot, so that the food at the bottom of the pot can be heated by the electromagnetic heating component 21, and the food at the pot wall can be heated by the infrared heating component 22, so as to provide a heating device with a large heating area and capable of heating the pot wall of a wok.

[0043] In one embodiment, the shape of the first heating area a1 is set to be circular, so that the electromagnetic heating coil disk corresponding to the middle portion can adopt the coil disk popular on the market, which can reduce the production cost accordingly.

[0044] It should be noted that when the shape of the first heating area a1 is set to be circular, if the second heating area a2 is a square ring, there will be a blank area between the first heating area a1 and the second heating area a2. Then, there will be a relatively weak thermal field in the area corresponding to the transition from the bottom of the pot to the wall of the pot. In order to avoid the blank area between the two heating areas and improve the overall heating uniformity of the heating device, the inner circle contour of the second heating area a2 is circular, and the outer circle contour is set to be square. Accordingly, the electromagnetic heating component 21 can be set to a circular electromagnetic coil disk, and the infrared heating component 22 needs to be set to a special-shaped structure with an inner circle and an outer square, which brings certain troubles during the production and assembly process.

[0045] In order to solve the above problems, in this embodiment, the first heating area a1 is set to a square shape, and accordingly, the inner circle of the second heating area a2 can be set to a square shape to match the first heating area a1 to ensure the uniformity of the thermal field of the entire heating area a.

[0046] For ease of production and assembly, please refer to Figure 2 In this embodiment, the electromagnetic heating component 21 includes an electromagnetic heating element 211 arranged in a square shape, and the infrared heating component 22 includes an infrared heating element 221 arranged in a square ring shape and arranged around the periphery of the electromagnetic heating element 211. In this way, the electromagnetic heating element 211 is set as a square coil winding, and the infrared heating element 221 is set as a ring-shaped infrared heating wire arranged around the periphery of the coil winding. Both heating components 2 are set in a square shape, which is convenient for production and assembly. In addition, the electromagnetic heating element 211 can be set closer to the pot, inducing a larger eddy current and generating a larger amount of heat. At the same time, the infrared heating element 221 is arranged around the periphery of the electromagnetic heating element 211 and is also closer to the pot wall. The infrared heating element 221 only heats the outer circle of the heating area a, avoiding the overlapping of infrared heating and electromagnetic heating, the temperature of the inner circle is too high, the temperature of the outer circle is low, and the pot is heated unevenly. At the same time, it also avoids the need for the main body 1 to be set too thick, which does not conform to the design trend of modern electronic appliances to be thin and light.

[0047] When the infrared heating element 221 is set to be a square ring, compared with when the infrared heating element 221 is set to be a circle, when the dimensions in the horizontal and vertical directions are the same, the circumference of the square is greater than the circumference of the circle, then the total length of the infrared heating element 221 corresponding to the square ring can be set longer, which is beneficial to a certain extent for the infrared heating element 221 to have a greater heating power output, thereby allowing the heating device to have a greater heating power.

[0048] It should be noted that the electromagnetic heating element 211 can be formed by winding a wire on a mounting bracket 212 so that the coil winding is finally wound in a square-like form, and the electromagnetic heating component 21 can finally generate a square electromagnetic field. In this embodiment, in order to improve the uneven electromagnetic field at the corners of the square coil winding so that the electromagnetic heating element 211 can generate a uniform electromagnetic field, a magnetic strip with strong magnetic conductivity can be set at the corner to help guide the magnetic lines of force to the corner, and a certain chamfer can be set at the corner of each turn of the coil winding, etc., to improve the disadvantages of the square electromagnetic coil disk in the prior art, thereby achieving electromagnetic heating of the square area.

[0049] In this example, see Figure 2The main body 1 includes a base 11 and a panel 12 covering the base 11, and the panel 12 is provided with the heating area a; the heating component 2 is provided between the base 11 and the panel 12. In this way, the pot can be placed directly on the panel 12 without providing a support part on the main body 1 to support the pot. The electromagnetic heating component 21 and the infrared heating component 22 can be set at a distance from the panel 12 according to actual needs and the heat resistance of the panel 12.

[0050] Furthermore, in order to make the heating device more suitable for the actual application scenario, in this embodiment, please refer to Figure 1 , Figure 2 and Figure 5 The panel 12 includes a first plate portion 121 and a second plate portion 122 respectively arranged corresponding to the first heating area a1 and the second heating area a2, and the second plate portion 122 is arranged on the side away from the base 11 to protrude from the first plate portion 121. In this way, the top of the panel 12 forms a step form. When the electromagnetic heating component 21 and the infrared heating component 22 are arranged on the side of the panel 12 facing the base 11, the infrared heating component 22 can be arranged to protrude from the electromagnetic heating component 21, so that the infrared heating component 22 can be closer to the side of the pot, thereby improving the heating utilization rate of the infrared heating component 22 and further improving the heating effect of the pot wall.

[0051] In a specific application scenario, when the pot is a round-bottomed arc-surface frying pan, when the pot is placed on the main body 1, the bottom of the pot is supported on the first plate portion 121, and the side of the pot is heated by the infrared heating assembly 22 arranged corresponding to the second plate portion 122. The electromagnetic heating element 211 has a high heating efficiency, heats up quickly, and provides a large firepower. The infrared heating element 221 can gradually heat up and heat the pot wall, which can adapt to the firepower requirements for cooking. When the pot is a square frying pan, the pot is placed on the panel 12, The entire bottom of the cookware is supported on the second plate portion 122, and there is a certain gap between the second plate portion 122 and the first plate portion 121. When frying food, in order to avoid burning the food, a large firepower is generally not required. Since there is a certain gap between the middle of the cookware and the first plate portion 121, when the electromagnetic heating element 211 is coupled with the middle of the bottom of the pot, the heating efficiency is reduced due to the distance. The infrared heating element 221 heats up slowly, and the instantaneous firepower is also lower than that of electromagnetic heating. Therefore, it is more suitable for the use scenario of a square frying pan.

[0052] In this embodiment, a circular groove is recessed on the side of the second plate portion 122 facing the base 11 and is arranged around the periphery of the first plate portion 121; the electromagnetic heating component 21 is arranged corresponding to the first plate portion 121, and the infrared heating component 22 is arranged in the circular groove. In this way, the heat radiated from the infrared heating component 22 to the top is gathered by the inner and outer walls of the circular groove, which more effectively isolates the heat source of infrared heating from radiating in other directions, and radiates more toward the direction of the pot above, thereby improving the heating efficiency.

[0053] In this example, see Figure 3 The electromagnetic heating assembly 21 further includes a mounting bracket 212 for mounting the electromagnetic heating element 211, and the mounting bracket 212 is arranged in a quasi-square shape. In this way, the mounting bracket 212 can fully adapt to the shape of the main body 1, and the electromagnetic heating element 211 can cover the mounting bracket 212 as much as possible, so that the electromagnetic heating assembly 21 can generate as large a heating surface as possible.

[0054] In this example, see Figure 4 The infrared heating assembly 22 also includes a mounting frame 222 for mounting the electromagnetic heating element 211, and the mounting frame 222 is arranged in a quasi-square shape. In this way, the mounting frame 222 is sleeved on the outer periphery of the mounting bracket 212 to form a quasi-square mounting base 11, which matches the square shell of the main body 1, effectively increasing the effective heating area of ​​electromagnetic heating and infrared heating, improving the cooking experience; and can effectively increase the length of the electromagnetic heating winding coil and the length of the infrared heating wire to ensure the heating effect.

[0055] Specifically, in this embodiment, an annular mounting groove 222a for mounting the infrared heating element is provided on the top of the mounting frame 222. When the infrared heating element is set as an infrared heating wire, the annular mounting groove 222a supports the infrared heating wire to ensure a stable shape for the infrared heating wire.

[0056] Furthermore, in this embodiment, the infrared heating assembly 22 also includes an annular heat insulating portion 223 disposed in the annular mounting groove 222a, and an annular groove 223a is formed on the top of the annular heat insulating portion 223, and the infrared heating element is disposed in the annular groove 223a. In this way, the annular heat insulating portion 223 is disposed between the infrared heating element 221 and the base 11 to prevent the base 11 and heat-sensitive parts from being heated by high temperatures, and the base 11 can be made of other materials with lower costs, without using high-cost high-temperature resistant materials, thereby reducing production costs.

[0057] Specifically, in this embodiment, the quasi-square shape includes one of a rectangle, a square and a racetrack shape. Of course, the quasi-square shape may refer to a rectangle or a square with certain chamfers, and the chamfers may be arc angles or straight chamfers.

[0058] The present invention further provides a cooking utensil 100, which includes the above-mentioned cooking device. The pot is arranged in the heating zone. The bottom of the round-bottomed wok corresponds to the first heating area a1, and the pot wall corresponds to the second heating area a2. The bottom of the square frying pan corresponds to the first heating area a1 and the second heating area a2. Since the cooking utensil 100 includes the cooking device, the specific structure of the cooking device refers to the above-mentioned embodiment. Since the cooking device of the cooking utensil 100 adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0059] Specifically, the cooking utensil 100 includes an induction cooker or an induction cooker. When the cooking utensil 100 is set as an induction cooker, one heating device can be provided; when the cooking utensil 100 is set as an induction cooker, multiple heating devices can be provided to form multi-head heating. Of course, the setting form and application scenario of the heating device are not limited to the above examples, and can be specifically designed according to actual conditions, and the embodiments of this specification do not limit this.

[0060] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heating device, characterized in that: include: A main body, wherein a heating area is arranged on the main body, and the heating area includes a first heating area and a second heating area which is in a square ring shape and surrounds the first heating area; A heating component is arranged on the main body and is used to heat the pot placed in the heating area. The heating component includes an electromagnetic heating component and an infrared heating component. The electromagnetic heating component is arranged corresponding to the first heating area, and the infrared heating component is arranged corresponding to the second heating area.

2. The heating device according to claim 1, characterized in that The first heating area is configured in a quasi-square shape.

3. The heating device according to claim 1, characterized in that The electromagnetic heating component comprises an electromagnetic heating element arranged in a quasi-square shape, and the infrared heating component comprises an infrared heating element arranged in a ring shape and arranged around the periphery of the electromagnetic heating element.

4. The heating device according to any one of claims 1 to 3, characterized in that: The main body comprises a base and a panel covering the base, and the panel is provided with the heating area; The heating component is arranged between the base and the panel.

5. The heating device according to claim 4, characterized in that The panel includes a first plate portion and a second plate portion respectively arranged corresponding to the first heating area and the second heating area, and the second plate portion is arranged to protrude from the first plate portion at a side away from the base.

6. The heating device according to claim 5, characterized in that A side of the second plate portion facing the base is concavely provided with an annular groove arranged around the periphery of the first plate portion; The electromagnetic heating component is arranged corresponding to the first plate portion, and the infrared heating component is arranged in the annular groove.

7. The heating device according to claim 3, characterized in that The electromagnetic heating assembly also includes a mounting bracket for mounting the electromagnetic heating element, and the mounting bracket is arranged in a quasi-square shape.

8. The heating device according to claim 3, characterized in that The infrared heating assembly also includes an installation frame for installing the electromagnetic heating element, and the installation frame is arranged in a quasi-square shape.

9. The heating device according to claim 8, characterized in that The top of the installation frame is provided with an annular installation groove for installing the infrared heating element.

10. The heating device according to claim 9, characterized in that The infrared heating assembly also includes an annular heat insulating portion arranged in the annular mounting groove, an annular groove is formed on the top of the annular heat insulating portion, and the infrared heating element is arranged in the annular groove.

11. The heating device according to claim 3, characterized in that The quasi-rectangular shape includes one of a rectangular shape, a square shape and a racetrack shape.

12. A cooking utensil, characterized in that: Comprising a heating device as claimed in any one of claims 1 to 11.

13. The cooking device according to claim 12, characterized in that: The cooking utensil comprises an induction cooker or an induction range.

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