Cooking utensil

Abstract

The utility model discloses a cooking utensil and relates to the technical field of cooking utensils, the cooking utensil comprises a main body, an electric heating device, an electromagnetic heating device and an electric control device, the main body comprises a panel, and a heating area is formed on the upper side of the panel; the electric heating device is arranged in the main body, corresponds to the heating area and is used for heating the cookware on the heating area, the electric heating device comprises a first heating part, a second heating part and a power connection terminal, the second heating part is annularly arranged on the periphery of the first heating part, and the power connection terminal is arranged in the area between the first heating part and the second heating part; the first heating part and the second heating part are electrically connected; the electromagnetic heating device is arranged in the main body and comprises a first heating coil, and the first heating coil is arranged on the lower side of the electric heating device; and the electric control device is electrically connected with the electric heating device and the electromagnetic heating device. The power connection terminal is arranged in the area between the first heating part and the second heating part, so that the problem of difficulty in wire outgoing is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cooking utensils, in particular to a cooking utensil. BACKGROUND

[0002] The existing cooking utensil with electromagnetic and infrared mixed heating is provided with two heating modes in the same heating area, and the main scheme is to use infrared electromagnetic upper and lower overlapping distribution for mixed heating. Since the infrared heating assembly and the electromagnetic heating assembly can be arranged to have a heating area corresponding to the size of the heating area, single electromagnetic and single infrared can realize large power heating, or mixed large power heating, and the heating performance is good.

[0003] In order to ensure the heating efficiency of the infrared heating assembly, the infrared heating assembly is usually arranged above the electromagnetic heating assembly, that is, close to the position of the panel. However, since the infrared heating assembly needs to be powered separately, the outlet path is easily affected by the internal structure of the cooking utensil, resulting in difficulty in wiring. SUMMARY

[0004] The main purpose of the utility model is to provide a cooking utensil, which aims to improve the existing cooking utensil with electromagnetic and infrared mixed heating, and the problem of difficulty in wiring of the infrared heating assembly.

[0005] To achieve the above purpose, the cooking utensil provided by the utility model comprises:

[0006] A cooking utensil, characterized in that it comprises:

[0007] A main body comprising a panel, wherein an upper side of the panel forms a heating area;

[0008] An electric heating device arranged in the main body and corresponding to the heating area, used to heat a pot on the heating area, wherein the electric heating device comprises a first heating part, a second heating part and an electric terminal, the second heating part is arranged around the periphery of the first heating part, and the electric terminal is arranged in the area between the first heating part and the second heating part and electrically connected with the first heating part and the second heating part;

[0009] An electromagnetic heating device arranged in the main body, wherein the electromagnetic heating device comprises a first heating coil, the first heating coil is arranged on the lower side of the electric heating device, and the electromagnetic field of the first heating coil can penetrate the electric heating device upwards to perform electromagnetic heating on the pot placed in the heating area; and

[0010] An electric control device electrically connected with the electric heating device and the electromagnetic heating device, used to control the electric heating device and the electromagnetic heating device to work, and capable of controlling the first heating part and the second heating part to work independently.

[0011] In an embodiment, the electric heating device comprises an infrared heating device, and the first heating part and the second heating part correspond to infrared heating wires.

[0012] In an embodiment, the first heating part and the second heating part are arranged in parallel.

[0013] In an embodiment, the power terminal comprises a first terminal, a second terminal and a common terminal;

[0014] The first heating part is connected with the common terminal and the first terminal;

[0015] The second heating part is connected with the common terminal and the second terminal.

[0016] In an embodiment, the cooking utensil further comprises a temperature control switch, which is connected in series between the common terminal and the electric control device.

[0017] In an embodiment, the first heating part and the second heating part are integrally connected at the common terminal.

[0018] In an embodiment, the electric heating device further comprises a heat insulation structure, the electromagnetic heating device is arranged on the lower side of the heat insulation structure, the first heating part and the second heating part are arranged on the upper side of the heat insulation structure, and the heat insulation structure is formed with a mounting hole.

[0019] The power terminal is arranged in the mounting hole.

[0020] In an embodiment, an insulating terminal seat is arranged in the mounting hole, and the power terminal is arranged on the insulating terminal seat.

[0021] In an embodiment, the insulating terminal seat is provided with a temperature probe, the temperature probe is exposed on the upper side of the heat insulation structure through the mounting hole, and is electrically connected with the electric control device.

[0022] In an embodiment, the heat insulation structure comprises:

[0023] A mounting seat mounted on the main body, the mounting seat is formed with a first through hole penetrating in the up-down direction; and,

[0024] A heat insulation seat arranged on the upper side of the mounting seat, the heat insulation seat is formed with a second through hole, the second through hole is communicated with the first through hole to form at least part of the mounting hole.

[0025] In an embodiment, the heat insulation structure further comprises a heat insulation sheet arranged between the mounting seat and the heat insulation seat, and the heat insulation sheet is formed with a third through hole;

[0026] The first through hole, the second through hole and the third through hole jointly form the mounting hole.

[0027] In an embodiment, the first heating coil and the first heating part or the second heating part are arranged at least partially staggered.

[0028] In an embodiment, the electromagnetic heating device further comprises a second heating coil arranged at the periphery of the first heating coil.

[0029] In an embodiment, the power connection terminal is arranged corresponding to the region between the first heating coil and the second heating coil.

[0030] In an embodiment, the second heating coil is arranged in a ring shape and comprises a plurality of turns of coils arranged in layers in the up-down direction; and / or,

[0031] The second heating coil is arranged at the periphery of the electric heating device; and / or,

[0032] The electric control device is electrically connected with the first heating coil and the second heating coil and can independently control the first heating coil and the second heating coil to work.

[0033] In an embodiment, the first heating coil and the second heating coil are arranged in parallel to be independently controlled to work by the electric control device.

[0034] The utility model discloses a technical scheme, to guarantee the heating performance of electric heating device, set up to the heating area of panel close to electric heating device, to make first heating part and second heating part close to heating area, when the cooking utensil needs to switch to mixed heating mode, electric control device controls electromagnetic heating device power on, and the electromagnetic field that electromagnetic heating device works can pass electric heating device upwards to couple with the pot placed at heating area and provide electromagnetic heating function for the pot, simultaneously, electric control device controls first heating part and second heating part in electric heating device independent work and provides electric heating function for the pot, set up like this, and the cooking utensil can switch different heating modes according to different size pot, thereby improving the cooking effect, not only this, when the temperature of first heating coil is too high under mixed heating mode, can only start first heating part or second heating part to reduce the high temperature radiation of electric heating device to electromagnetic heating device and prevent electromagnetic heating device from thermal runaway, not only this, the region between first heating part and second heating part is provided with electricity terminal, and the electricity terminal can make full use of the interval between first heating part and second heating part (the interval is favorable for preventing local overheating and prolonging the service life of first heating part and second heating part), thereby realizing that the middle part of electric heating device goes down to the wire and is connected into the power supply circuit of cooking utensil, and the technical scheme is less influenced by the structure around electric heating device, and the wire outlet difficulty of electric heating device is reduced to a great extent. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the structure shown in these drawings without creating labor.

[0036] Figure 1 It is the exploded structural schematic drawing of an embodiment of the heating structure provided by the utility model;

[0037] Figure 2 It is the exploded structural schematic drawing of an embodiment of the heating structure provided by the utility model; Figure 1 It is the exploded structural schematic drawing of an embodiment of the heating structure provided by the utility model;

[0038] Figure 3 It is the exploded structural schematic drawing of an embodiment of the heating structure provided by the utility model; Figure 1 It is the exploded structural schematic drawing of an embodiment of the heating structure provided by the utility model;

[0039] Figure 4 It is the exploded structural schematic drawing of an embodiment of the heating structure provided by the utility model; Figure 1 It is the exploded structural schematic drawing of an embodiment of the heating structure provided by the utility model;

[0040] Figure 5 It is the exploded structural schematic drawing of an embodiment of the heating structure provided by the utility model;Figure 4 Structure schematic view of the middle section A-A;

[0041] Figure 6 For Figure 4 Structure schematic view of one embodiment of the middle section B;

[0042] Figure 7 For Figure 4 Structure schematic view of another embodiment of the middle section B;

[0043] Figure 8 For Figure 1 Structure schematic view of the bottom of the electric heating device and the heat insulation structure;

[0044] Figure 9 For Figure 8 Structure schematic view of the middle section C.

[0045] Explanation of reference numerals:

[0046] 100, cooking utensil;

[0047] 1, main body; 11, panel; 2, electric heating device; 2a, infrared heating device; 21, first heating part; 22, second heating part; 23, power terminal; 23a, first terminal; 23b, second terminal; 23c, common terminal; 24, insulating terminal seat; 25, temperature probe; 3, electromagnetic heating device; 31, first heating coil; 32, second heating coil; 4, heat insulation structure; 4a, mounting hole; 41a, first through hole; 42a, second through hole; 43a, third through hole; 41, mounting seat; 42, heat insulation seat; 43, heat insulation sheet; 5, electric control device; 6, fan; 7, operation device; 8, temperature control switch.

[0048] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0050] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0051] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0052] The existing electromagnetic and infrared hybrid heating cooking utensil is provided with two heating modes in the same heating area, wherein the main scheme is to adopt infrared electromagnetic upper and lower overlapping distribution for hybrid heating. Since the infrared heating assembly and the electromagnetic heating assembly can be arranged to have a heating area corresponding to the size of the heating area, single electromagnetic, single infrared can realize large power heating, or form large power heating by mixing, and the heating performance is good.

[0053] In order to ensure the heating efficiency of the infrared heating assembly, the infrared heating assembly is usually arranged above the electromagnetic heating assembly, that is, close to the position of the panel. However, since the infrared heating assembly needs to be powered separately, its outgoing line path is easily affected by the internal structure of the cooking utensil. For example, in some cooking utensils, in order to fully utilize the height space of the cooking utensil, electromagnetic heating coils are usually arranged around the electric heating device. These electromagnetic heating coils undoubtedly limit the outgoing line of the infrared heating assembly from the side, that is, cause the problem of difficulty in outgoing line of the infrared heating assembly.

[0054] In view of this, the main purpose of the present application is to provide a cooking utensil, which aims to improve the problem of difficulty in outgoing line of the infrared heating assembly in the existing electromagnetic and infrared hybrid heating cooking utensil.

[0055] In order to facilitate understanding of the specific structure of the cooking utensil provided by the present application, the following will be described with reference to the drawings, wherein, Figure 1 It is an exploded structural schematic view of the heating structure provided by the present application;

[0056] Figure 2 For Figure 1 It is an exploded structural schematic view of the electric heating device and the heat insulation structure; Figure 3 For Figure 1The exploded structural schematic diagram of the electric heating device and the electromagnetic heating device; Figure 4 The electric heating device and the electromagnetic heating device are Figure 1 The structural schematic diagram of the electric heating device and the electromagnetic heating device from the top view; Figure 5 The electric heating device and the electromagnetic heating device are Figure 4 The structural schematic diagram of the electric heating device and the electromagnetic heating device from the top view; Figure 6 The electric heating device and the electromagnetic heating device are Figure 4 The structural schematic diagram of the electric heating device and the electromagnetic heating device from the top view; Figure 7 The electric heating device and the electromagnetic heating device are Figure 4 The structural schematic diagram of the electric heating device and the electromagnetic heating device from the top view; Figure 8 The electric heating device and the electromagnetic heating device are Figure 1 The structural schematic diagram of the electric heating device and the electromagnetic heating device from the top view; Figure 9 The electric heating device and the electromagnetic heating device are Figure 8 The structural schematic diagram of the electric heating device and the electromagnetic heating device from the top view.

[0057] The structural schematic diagram of the electric heating device and the electromagnetic heating device from the top view. Figures 1 to 3 In the embodiment of the present application, the cooking appliance 100 comprises a main body 1, an electric heating device 2, an electromagnetic heating device 3 and an electric control device 5. The main body 1 comprises a panel 11, and the upper side of the panel 11 is provided with a heating area. The electric heating device 2 is arranged in the main body 1 and corresponds to the heating area, and is used to heat a pot on the heating area. The electric heating device 2 comprises a first heating part 21, a second heating part 22 and an electric terminal 23. The second heating part 22 is arranged around the periphery of the first heating part 21, and the electric terminal 23 is arranged between the first heating part 21 and the second heating part 22 and is electrically connected with the first heating part 21 and the second heating part 22. The electromagnetic heating device 3 is arranged in the main body 1 and comprises a first heating coil 31. The first heating coil 31 is arranged below the electric heating device 2, and the electromagnetic field of the first heating coil 31 can penetrate the electric heating device 2 upwards to electromagnetically heat the pot on the heating area. The electric control device 5 is electrically connected with the electric heating device 2 and the electromagnetic heating device 3, and is used to control the electric heating device 2 and the electromagnetic heating device 3 to work, and can control the first heating part 21 and the second heating part 22 to work independently.

[0058] It should be noted that the "power terminal 23" refers to an electrical interface component for the power supply line and the first heating part 21 and the second heating part 22, which is responsible for transmitting electrical energy in the power supply of the cooking utensil 100 to the first heating part 21 and the second heating part 22, thereby realizing the heating function. The power terminal 23 actually belongs to the electrical conversion structure, and its specific structure has various forms, for example, the power supply line and the first heating part 21 and the second heating part 22 are fixed on the terminal seat by screws, or the power supply line and the first heating part 21 and the second heating part 22 are connected in plug and socket form, and the present embodiment does not limit this. In the hybrid heating cooking utensil 100, there is usually a gap between the multiple heating parts in the electric heating device 2. The reason is that the multiple heating parts are separated by a certain distance, which can avoid excessive concentration of heat in a certain area, leading to local overheating or uneven heat distribution. By reasonably setting the distance, heat can be more evenly transmitted to the pot, thereby improving the heating efficiency. Based on this, the power terminal 23 in the technical solution is arranged in the gap between the first heating part 21 and the second heating part 22, and the purpose is to downwardly lead the wire from the middle of the electric heating device 2. Since the lower side of the electric heating device 2 is provided with the electromagnetic heating device 3, in order to provide space for the power terminal 23 to downwardly lead the wire, the first heating coil 31 at least does not coincide with the power terminal 23 in the projection in the up-down direction. The "electrical connection between the power terminal 23 and the first heating part 21 and the second heating part 22" means that through the conversion of the power terminal 23, the power supply circuit can be formed between the power supply line of the cooking utensil 100 and the first heating part 21 and the second heating part 22, thereby providing electrical energy for the first heating part 21 and the second heating part 22 for heating.

[0059] The utility model discloses a technical scheme, to guarantee the heating performance of electric heating device 2, set up to the heating area of panel 11 with electric heating device, to make first heating part 21 and second heating part 22 close to the heating area, when cooking utensil 100 needs to switch to mixed heating mode, electric control device 5 controls electromagnetic heating device 3 to be electrified, and the electromagnetic field that electromagnetic heating device 3 works can pass electric heating device 2 upwards to couple with the pot placed at the heating area and provide electromagnetic heating function for the pot, at the same time, electric control device 5 controls first heating part 21 and second heating part 22 in electric heating device 2 to work independently and provides electric heating function for the pot, and the cooking utensil 100 can switch different heating modes according to different sizes of pot, thereby improving the cooking effect, not only this, when the temperature of first heating coil 31 is too high in mixed heating mode, can only start first heating part 21 or second heating part 22, to reduce the high temperature radiation of electric heating device 2 to electromagnetic heating device 3, prevent electromagnetic heating device 3 from heat runaway, not only this, the region between first heating part 21 and second heating part 22 is provided with electricity terminal 23, and the electricity terminal 23 can make full use of the interval between first heating part 21 and second heating part 22 (the interval is advantageous to prevent local overheating and prolong the service life of first heating part 21 and second heating part 22), thereby realizing that the middle part of electric heating device 2 goes down to the power supply circuit of cooking utensil 100, and the technical scheme is less affected by the side edge structure of electric heating device 2, and the wire outlet difficulty of electric heating device 2 is reduced to a great extent.

[0060] Please refer to Figure 2 In an embodiment, the electric heating device 2 includes an infrared heating device 2a, and the first heating part 21 and the second heating part 22 correspond to infrared heating wires. In this way, when the cooking utensil 100 needs to be heated by electricity, the electric control device 5 controls the infrared heating device 2a to work, and the first heating part 21 and the second heating part 22 emit heat to heat the heating area of the panel 11.

[0061] Specifically, in the embodiment, the electric heating device 2 is set as an infrared heating device 2a, and the first heating part 21 and the second heating part 22 correspond to infrared heating wires, respectively.

[0062] It should be noted that the utility model does not limit the specific material of the infrared heating wire. The material of the infrared heating wire can be set as iron-chromium-aluminum alloy, nickel-chromium alloy, chromium-aluminum-molybdenum alloy, chromium-aluminum-niobium alloy, carbon fiber or other materials, as long as the resistivity is not less than 0.1 uΩ.m. Of course, the material of the infrared heating wire can also be set as multiple materials of iron-chromium-aluminum alloy, nickel-chromium alloy, chromium-aluminum-molybdenum alloy, chromium-aluminum-niobium alloy and carbon fiber. In actual setting, the selection can be made according to the needs.

[0063] Please refer to Figure 4 , Figure 6 and Figure 7 In an embodiment, the first heating part 21 and the second heating part 22 are connected in parallel. In this way, the electric control device 5 can control the first heating part 21 and the second heating part 22 to work independently, thereby ensuring the normal operation of the mixed heating of the cooking utensil 100.

[0064] In addition, there are many ways for the electric control device 5 to control the first heating part 21 and the second heating part 22 to work independently. For example, for more accurate control, a thyristor or a solid-state relay can be used to control the power input of each first heating part 21 and second heating part 22 respectively. The thyristor or solid-state relay can quickly switch the current according to the control signal, realizing independent and accurate control of the first heating part 21 and the second heating part 22.

[0065] In the scenario where the first heating part 21 and the second heating part 22 are connected in parallel, the power connection terminal 23 can connect the current input end and the current output end of the first heating part 21 and the second heating part 22 through four terminals respectively. However, this way has a large number of terminal settings. Therefore, in an embodiment, the power connection terminal 23 includes a first terminal 23a, a second terminal 23b, and a common terminal 23c; the first heating part 21 is connected to the common terminal 23c and the first terminal 23a; the second heating part 22 is connected to the common terminal 23c and the second terminal 23b. In this way, the power connection terminal 23 is set in the form of combination of the first terminal 23a, the second terminal 23b, and the common terminal 23c, wherein the common terminal 23c is connected to one end of the first heating part 21 and the second heating part 22. By controlling the power supply to the first terminal 23a and the second terminal 23b respectively, the heating control of the first heating part 21 and the second heating part 22 can be realized. This setting method of improving the utilization rate of the common terminal 23c can reduce the number of terminal settings, simplify the structure of the power connection terminal 23, and reduce the occupancy rate of the area between the first heating part 21 and the second heating part 22.

[0066] Further, please refer to Figure 8 and Figure 9 In an embodiment, the cooking utensil 100 further includes a temperature control switch 8, which is connected in series between the common terminal 23c and the electric control device 5.

[0067] It should be noted that the "temperature control switch 8" is a device that automatically controls the on-off of the circuit according to the temperature. The temperature control switch 8 can be generally divided into a recoverable type and a non-recoverable type. The recoverable type temperature control switch 8 includes a mechanical temperature control switch 8 (for example, a bimetallic strip temperature controller, a capillary tube temperature controller, etc.) and an electronic temperature control switch 8 (using a sensor such as a thermistor (NTC / PTC), a thermocouple, or a platinum resistance (RTD) to measure temperature and performing signal processing and control through an electronic circuit), and the non-recoverable type temperature control switch 8 includes a fuse type temperature protection device (also known as a thermal fuse or thermal fuse).

[0068] In the above technical solution, the temperature control switch 8 is connected in series with the common terminal 23c and the electric control device 5, which is equivalent to controlling the on-off of the first heating part 21 and the second heating part 22 through one temperature control switch 8. The "common" feature of the common terminal 23c reduces the number of temperature control switches 8, thereby reducing the production cost of the cooking appliance 100.

[0069] Generally, the first heating part 21 and the second heating part 22 can be arranged in sections and thus are electrically connected with the common terminal 23c, respectively. However, this undoubtedly requires performing the connection operation twice. In view of this, please refer to Figure 6 and Figure 7 In an embodiment, the first heating part 21 and the second heating part 22 are integrally connected at the common terminal 23c. It should be noted that "the first heating part 21 and the second heating part 22 are integrally connected at the common terminal 23c" can be understood as that the first heating part 21 and the second heating part 22 belong to one integral heating part, for example, one integral heating wire. By connecting the middle part of the heating wire to the common terminal 23c, the first heating part 21 and the second heating part 22 can be defined on both sides of the common terminal 23c, respectively. This arrangement can reduce the number of connections between the first heating part 21, the second heating part 22, and the common terminal 23c, that is, the electrical conduction between the first heating part 21, the second heating part 22, and the common terminal 23c can be completed through one connection.

[0070] Please refer to Figure 3 and Figure 5 In an embodiment, the electric heating device 2 further includes a heat insulation structure 4. The electromagnetic heating device 3 is arranged on the lower side of the heat insulation structure 4, the first heating part 21 and the second heating part 22 are arranged on the upper side of the heat insulation structure 4, the heat insulation structure 4 is formed with a mounting hole 4a, and the power terminal 23 is arranged in the mounting hole 4a.

[0071] It should be noted that the heat insulation structure 4 has heat insulation properties, and the thermal conductivity thereof is at a low level. The material of the heat insulation structure 4 can be selected from various materials such as ceramic fiber, glass fiber, aluminum silicate cotton, microporous calcium silicate board, polyurethane foam, etc. The specific material of the heat insulation structure 4 is not limited in the embodiment. The heat insulation structure 4 can be a single structure or a combination of multiple structures. The specific structure of the heat insulation structure 4 is not limited in the embodiment. As long as the heat insulation structure 4 can be arranged between the electric heating device 2 and the electromagnetic heating device 3 and block or reduce the heat transfer from the electric heating device 2 to the electromagnetic heating device 3 through the heat insulation properties thereof, the electromagnetic heating device 3 can be protected, and the service life of the electromagnetic heating device 3 can be increased.

[0072] The mounting hole 4a can be understood as penetrating the heat insulation structure 4 in the up-down direction, and the electric terminal 23 is arranged in the mounting hole 4a to enable the upper end of the electric terminal 23 to be connected to the first heating part 21 and the second heating part 22 and the lower end to be connected to the power supply circuit of the cooking utensil 100 downward.

[0073] Further, referring to Figure 2 and Figure 6 In an embodiment, the insulating terminal seat 24 is arranged in the mounting hole 4a, and the electric terminal 23 is arranged on the insulating terminal seat 24.

[0074] It should be noted that the insulating terminal seat 24 has insulation properties, and the electrical conductivity thereof is at a low level. The material of the insulating terminal seat 24 can be selected from various materials such as polyamide and polyvinyl chloride, etc. The specific material of the insulating terminal seat 24 is not limited in the embodiment. The insulating terminal seat 24 is arranged in the mounting hole 4a, and the electric terminal 23 is arranged on the insulating terminal seat 24. It can be understood that the electric terminal 23 is fixedly arranged on the insulating terminal seat 24 and the heat insulation structure 4 through the insulating terminal seat 24, and the insulation protection level of the cooking utensil 100 is improved.

[0075] Referring to Figure 7 In another embodiment, the electric terminal 23 is arranged outside the mounting hole 4a, and the insulating terminal seat 24 is arranged inside the mounting hole 4a.

[0076] Further, referring to Figure 6 and Figure 7 In an embodiment, the insulating terminal seat 24 is arranged with the temperature probe 25, the temperature probe 25 is exposed to the upper side of the heat insulation structure 4 through the mounting hole 4a, and is electrically connected to the electric control device 5.

[0077] The temperature probe 25 can be a thermocouple or an NTC thermistor. The temperature probe 25 can generate corresponding electrical signal changes according to changes in the ambient temperature. These electrical signals are transmitted to the electric control device 5 of the cooking appliance 100 for processing. The electric control device 5 converts these signals into actual temperature readings and compares them with the preset target temperature. If the currently detected temperature is lower than the set target temperature, the electric control device 5 increases the power output, and vice versa. In the technical solution, the insulating terminal block 24 provides a mounting base for the temperature probe 25, so that the temperature probe 25 can be exposed to the upper side of the heat insulation structure 4 through the mounting hole 4a to detect the heating temperature of the electric heating device 2 in real time, solving the problem of difficult temperature probe 25 setting and also helping to reduce the production cost of the cooking appliance 100.

[0078] Please refer to Figure 2 and Figure 5 In an embodiment, the heat insulation structure 4 includes a mounting seat 41 and a heat insulation seat 42. The mounting seat 41 is mounted on the main body 1 and is formed with a first through hole 41a penetrating in the up-down direction. The heat insulation seat 42 is arranged on the upper side of the mounting seat 41 and is formed with a second through hole 42a communicating with the first through hole 41a to form at least part of the mounting hole 4a.

[0079] Based on the fact that the first heating part 21 and the second heating part 22 are arranged on the upper side of the heat insulation structure 4, and the heat insulation structure 4 includes the mounting seat 41 and the heat insulation seat 42 arranged on the upper side of the mounting seat 41, it can be determined that the first heating part 21 and the second heating part 22 are arranged on the upper side of the heat insulation seat 42, and the electromagnetic heating device 3 is arranged on the lower side of the mounting seat 41. The specific material of the heat insulation seat 42 is not limited in the embodiment, but the heat insulation seat 42 should have certain heat insulation performance. The specific material of the mounting seat 41 is not limited in the embodiment, but the mounting seat 41 should have sufficient structural strength to support the heat insulation seat 42, the electric heating device 2 and other structures.

[0080] In the above technical solution, the heat insulation structure 4 is composed of the mounting seat 41 and the heat insulation seat 42, so that the mounting seat 41 and the heat insulation seat 42 can perform their respective functions, thereby taking into account the heat insulation performance and structural strength of the heat insulation structure 4.

[0081] It should be noted that the heat insulation seat 42 needs to have certain mechanical properties, such as being able to be processed into a structure convenient for mounting the first heating part 21 and the second heating part 22, so that the selection of the heat insulation material of the heat insulation seat 42 has certain limitations. In view of this, in an embodiment, the heat insulation structure 4 further comprises a heat insulation sheet 43, the heat insulation sheet 43 is arranged between the mounting seat 41 and the heat insulation seat 42, and the heat insulation sheet 43 is formed with a third through hole 43a; the first through hole 41a, the second through hole 42a and the third through hole 43a jointly constitute a mounting hole 4a. The heat insulation sheet 43 belongs to a structure for further enhancing heat insulation in addition to the heat insulation seat 42, and it usually does not need to bear the role of support or modeling, and therefore the heat insulation sheet 43 has no limitations in material selection and can be made of a material with lower thermal conductivity than the heat insulation seat 42, such as one or more of heat insulation cotton, aerogel, mica sheet, glass fiber and the like.

[0082] Please refer to Figure 3 In an embodiment, the first heating coil 31 is at least partially staggered with the first heating part 21 or the second heating part 22. It should be understood that the first heating coil 31 can partially coincide with the first heating part 21 or the second heating part 22 in the projection of the first heating coil 31 in the up-down direction, and the remaining part is staggered, or it can be understood that the projection of the first heating coil 31 in the up-down direction is completely staggered with the first heating part 21 or the second heating part 22. In this way, in the hybrid heating mode, since the projection of the first heating coil 31 in the up-down direction is partially or completely staggered with the first heating part 21 or the second heating part 22, when the temperature of the first heating coil 31 is too high, the heating part staggered with the first heating coil 31 can be turned on alone, and the heat generated by the heating part can be less radiated downward to the first heating coil 31, which is beneficial to alleviate the over-temperature condition of the first heating coil 31 and also improves the service life of the first heating coil 31.

[0083] Please refer to Figure 3 and Figure 5 In an embodiment, the electromagnetic heating device 3 further comprises a second heating coil 32 located at the periphery of the first heating coil 31. The first heating coil 31 is usually arranged in a coil shape, so there is an inside and an outside of the first heating coil 31, and the periphery of the first heating coil 31 usually refers to the outside of the first heating coil 31 in the radial direction thereof. In the present technical solution, the electromagnetic heating device 3 is arranged to be composed of the inside and outside distribution of the first heating coil 31 and the second heating coil 32, which allows the magnetic field to be generated in different areas at the same time, thereby achieving a more uniform heating effect.

[0084] Further, please refer to Figure 3In an embodiment, the region between the power connection terminal 23 and the first heating coil 31 and the second heating coil 32 is correspondingly provided. In the cooking utensil 100, there is usually a space between the first heating coil 31 and the second heating coil 32 to reduce mutual inductance effect and optimize magnetic field distribution. The present technical solution utilizes the space to provide space for the outlet of the power connection terminal 23, without making changes to the first heating coil 31 and the second heating coil 32, thereby further reducing the difficulty of the outlet of the power connection terminal 23.

[0085] Please refer to Figure 3 In another embodiment, the second heating coil 32 is annularly arranged and includes multiple turns of coils arranged in layers in the up-down direction. In the prior art, some electromagnetic heating coils are usually arranged in a disc shape in a plane. In the present technical solution, the second heating coil 32 includes multiple turns of coils arranged in layers in the up-down direction, i.e., the second heating coil 32 is arranged in a stacked disc shape in the up-down direction, thereby presenting a space tubular or sleeve structure. In this way, the electromagnetic heating efficiency of the electromagnetic heating device 3 can be ensured, while the radial space occupied by the second heating coil 32 for the electromagnetic heating device 3 can be reduced, which is conducive to controlling the lateral size of the cooking utensil 100.

[0086] Please refer to Figure 3 and Figure 4 In another embodiment, the second heating coil 32 is arranged at the periphery of the electric heating device 2. In other words, in the projection in the up-down direction, the second heating coil 32 does not overlap with the first heating part 21 and the second heating part 22. In this way, the heat generated by the first heating part 21 and the second heating part 22 can be less transmitted downward to the second heating coil 32, which is conducive to alleviating the over-temperature condition of the second heating coil 32 and improving the service life of the second heating coil 32.

[0087] In another embodiment, the electric control device 5 is electrically connected to the first heating coil 31 and the second heating coil 32 and can independently control the operation of the first heating coil 31 and the second heating coil 32. The electric control device 5 independently controls the operation of the first heating coil 31 and the second heating coil 32, which is conducive to better controlling the magnetic field distribution generated by each heating coil and ensuring that the magnetic field is concentrated in the region that needs to be heated. Specifically, the first heating coil 31 can focus on heating the central region of the pot, while the second heating coil 32 is responsible for the edge region, which can more accurately control the heating intensity of different regions and thus achieve a more uniform heating effect. Furthermore, the electric control device 5 can also independently control the first heating coil 31 or the second heating coil 32 to be turned on, thereby adapting to different types of pots. For example, when dealing with a pot with a small pot bottom size, the electric control device 5 can independently control the first heating coil 31 to be turned on, thereby avoiding unnecessary energy loss caused by the second heating coil 32 being turned on.

[0088] It should be noted that the above three parallel technical features "the second heating coil 32 is annularly arranged and comprises a plurality of turns of coils arranged in layers in the up-down direction", "the second heating coil 32 is arranged at the periphery of the electric heating device 2", and "the electric control device 5 is electrically connected with the first heating coil 31 and the second heating coil 32 and can independently control the operation of the first heating coil 31 and the second heating coil 32" can be set in one, two or all at the same time. Obviously, when all are set at the same time, more beneficial effects can be produced. In the scheme of "the second heating coil 32 is annularly arranged at the periphery of the electric heating device 2 and comprises a plurality of turns of coils arranged in layers in the up-down direction", the second heating coil 32 fully utilizes the height space at the periphery of the electric heating device 2 and is stacked and wound in the up-down direction, thereby reducing the occupation of the transverse space at the periphery of the electric heating device 2 to the maximum extent while ensuring the electromagnetic heating efficiency of the second heating coil 32.

[0089] Further, please refer to Figure 6 and Figure 7 In an embodiment, the first heating coil 31 and the second heating coil 32 are arranged in parallel to be independently controlled by the electric control device 5.

[0090] The electric control device 5 can control the operation of the first heating coil 31 and the second heating coil 32 in many ways, for example, a silicon controlled rectifier or a solid-state relay can be used to control the power input of each first heating coil 31 and second heating coil 32. The silicon controlled rectifier or solid-state relay can quickly switch the current according to the control signal to achieve independent and accurate control of the first heating coil 31 and the second heating coil 32. In the technical scheme, the first heating coil 31 and the second heating coil 32 are arranged in parallel, which is easier to achieve and has better independent control effect.

[0091] To further maintain the temperature of the electromagnetic heating device 3 and alleviate the sharp rise of the temperature thereof, please refer to Figure 1 In an embodiment, the cooking utensil 100 further comprises a fan 6 arranged in the main body 1 and located below the electromagnetic heating device 3. The fan 6 is used to blow the electromagnetic heating device 3 to maintain the temperature of the electromagnetic heating device 3.

[0092] In addition, in the embodiment of the present application, to facilitate the user to operate the cooking utensil 100, the cooking utensil 100 further comprises an operating device 7 provided with a key for the user to operate, which is used for the user to control the electric heating device 2 and the electromagnetic heating device 3.

[0093] The above are only exemplary embodiments of the present application, and do not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A cooking appliance characterized by, The cooking utensil comprises: a main body comprising a panel, an upper side of the panel being formed with a heating area; an electric heating device arranged in the main body and corresponding to the heating area, for heating a pot on the heating area, the electric heating device comprising a first heating part, a second heating part arranged around the periphery of the first heating part, and an electric terminal arranged between the first heating part and the second heating part and electrically connected to the first heating part and the second heating part; an electromagnetic heating device arranged in the main body, the electromagnetic heating device comprising a first heating coil arranged at the lower side of the electric heating device, and an electromagnetic field of the first heating coil being capable of penetrating the electric heating device upwardly to electromagnetically heat a pot placed on the heating area; and an electric control device electrically connected to the electric heating device and the electromagnetic heating device, for controlling the electric heating device and the electromagnetic heating device to work, and capable of controlling the first heating part and the second heating part to work independently. The electric heating device comprises an infrared heating device, and the first heating part and the second heating part correspond to infrared heating wires.

2. The cooking appliance of claim 1, wherein, The first heating part and the second heating part are arranged in parallel.

3. The cooking appliance of claim 1, wherein, The electric terminal comprises a first terminal, a second terminal, and a common terminal.

4. The cooking appliance of claim 3, wherein, The first heating part is connected to the common terminal and the first terminal. The second heating part is connected to the common terminal and the second terminal. The cooking utensil further comprises a temperature control switch connected in series to the common terminal and the electric control device.

5. The cooking appliance of claim 4, wherein, The first heating part and the second heating part are integrally connected at the common terminal.

6. The cooking appliance of claim 4, wherein, The electric heating device further comprises a heat insulation structure, the electromagnetic heating device is arranged at the lower side of the heat insulation structure, the first heating part and the second heating part are arranged at the upper side of the heat insulation structure, and the heat insulation structure is formed with a mounting hole.

7. The cooking appliance of claim 1, wherein, The electric terminal is arranged through the mounting hole. An insulating terminal seat is arranged in the mounting hole, and the electric terminal is arranged on the insulating terminal seat.

8. The cooking appliance of claim 7, wherein, The insulating terminal seat is provided with a temperature probe, the temperature probe is exposed to the upper side of the heat insulation structure through the mounting hole, and is electrically connected to the electric control device.

9. The cooking appliance of claim 8, wherein, The heat insulation structure comprises:

10. The cooking appliance of claim 7, wherein, a mounting seat mounted to the main body, the mounting seat being formed with a first through hole penetrating in the up-down direction; and a heat insulation seat arranged at the upper side of the mounting seat, the heat insulation seat being formed with a second through hole, the second through hole being in communication with the first through hole to form at least part of the mounting hole. The heat insulation structure further comprises a heat insulation sheet arranged between the mounting seat and the heat insulation seat, the heat insulation sheet being formed with a third through hole.

11. The cooking appliance of claim 10, wherein, The first through hole, the second through hole, and the third through hole jointly form the mounting hole. The first heating coil and the first heating part or the second heating part are arranged at least partially staggered.

12. The cooking appliance of any one of claims 1 to 11, wherein, The electromagnetic heating device further comprises a second heating coil arranged at the periphery of the first heating coil.

13. The cooking appliance of any one of claims 1 to 11, wherein, ​ 14. The cooking appliance of claim 13, wherein, The region between the power connection terminal and the first heating coil and the second heating coil is correspondingly provided.

15. The cooking appliance of claim 13, wherein, The second heating coil is annularly arranged and comprises a plurality of turns of coils arranged in layers in the up-down direction; and / or, The second heating coil is arranged at the periphery of the electric heating device; and / or, The electric control device is electrically connected with the first heating coil and the second heating coil and can independently control the first heating coil and the second heating coil to work.

16. The cooking appliance of claim 15, wherein, The first heating coil and the second heating coil are arranged in parallel to be independently controlled to work by the electric control device.

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