Electromagnetic oven

Abstract

The utility model discloses an induction cooker, and relates to the technical field of household appliances, the induction cooker comprises a wire coil assembly, a shell and a fan, the wire coil assembly comprises an isolation pad, a heating coil and a heat insulation piece, the isolation pad is arranged between the heating coil and the heat insulation piece, so that a heat dissipation gap is formed between the heating coil and the heat insulation piece; the shell is provided with an air inlet and an air outlet, the shell is provided with a mounting space, the air inlet and the air outlet are communicated with the mounting space, and the wire coil assembly is arranged in the mounting space; the fan at least drives airflow to enter from the air inlet and flow out from the air outlet after passing through the heat dissipation gaps. According to the isolation pad of the induction cooker, the heat dissipation gap is formed between the heating coil and the heat insulation piece, the fan at least drives airflow to enter from the air inlet and flow out from the air outlet after passing through the heat dissipation gap, the heat dissipation effect in the induction cooker can be effectively improved, and damage caused by local overheating of the induction cooker is avoided as much as possible; the heat dissipation gaps can improve the heat insulation effect and reduce the influence of heat at the bottom of the boiler on the induction cooker.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of household appliances, especially relates to an induction cooker. BACKGROUND

[0002] As a kind of stove, induction cooker will not only be subjected to the heat transferred by pot on it in use process, while the heat of internal device itself cannot be ignored, therefore, how to effectively dissipate heat is an important problem that induction cooker faces in practical application. Induction cooker in the related art is usually cooled by fan, and the cooling effect is poor. CONTENT OF UTILITY MODEL

[0003] The utility model aims at at least one of the technical problems existing in prior art. To this end, the utility model provides an induction cooker, and the cooling effect is good.

[0004] To solve the above technical problems, the technical scheme adopted is as follows:

[0005] The utility model embodiment provides an induction cooker, comprising:

[0006] Wire coil assembly, including isolation pad, heating coil and heat insulating piece, the isolation pad is set between the heating coil and the heat insulating piece, so that the heating coil and the heat insulating piece form heat dissipation gap between them;

[0007] Shell, with air inlet and air outlet;The shell has installation space, the air inlet and the air outlet communicate the installation space, and the wire coil assembly is arranged in the installation space;

[0008] Fan, at least drive airflow to enter from the air inlet, and flow out from the air outlet after the heat dissipation gap.

[0009] According to the induction cooker of the utility model embodiment, at least has the following beneficial effects:

[0010] Heating coil utilizes electromagnetic induction to transfer heat to pot on the induction cooker to heat food, isolation pad is located on one side of the pot, and heat insulating piece can effectively absorb and disperse heat, reduce the damage caused by heat to the surface of induction cooker;Heat is prevented from being transferred by heat insulating piece, and the service life of induction cooker is prolonged;Isolation pad forms heat dissipation gap between heating coil and heat insulating piece, fan at least drives airflow to enter from air inlet, and flow out from air outlet after heat dissipation gap, which can effectively improve the cooling effect in induction cooker, and avoid damage caused by local overheating of induction cooker as far as possible;In addition, heat dissipation gap can improve heat insulation effect, reduce the influence of heat at the bottom of boiler on induction cooker.

[0011] According to the induction cooker of the utility model embodiment, the material of the shell is at least one of iron material, stainless steel material and plastic material.

[0012] According to the induction cooker provided by the embodiment of the present application, the isolation pads are arranged in at least two, and the at least two isolation pads are arranged along the center line of the coil assembly in a circumferential direction, and the isolation pads extend from the center of the coil assembly to the edge of the coil assembly; the heat dissipation gap is formed between the adjacent two isolation pads.

[0013] According to the induction cooker provided by the embodiment of the present application, the coil assembly further comprises a shielding member and a magnet, the magnet is located between the heating coil and the shielding member, so that the ventilation gap is formed between the heating coil and the shielding member; the shielding member is used for shielding the magnetic field of the coil assembly.

[0014] According to the induction cooker provided by the embodiment of the present application, the shielding member has a ventilation hole, and the ventilation hole is communicated with the ventilation gap.

[0015] According to the induction cooker provided by the embodiment of the present application, the magnet is arranged in at least two, and the at least two magnets are arranged along the center line of the heating coil in a circumferential direction, and the magnet extends from the center of the heating coil to the edge of the heating coil; the ventilation gap is formed between the adjacent two magnets.

[0016] According to the induction cooker provided by the embodiment of the present application, the coil assembly is arranged in two, which are a first coil assembly and a second coil assembly, and the first coil assembly and the second coil assembly are arranged side by side; the heat dissipation space is formed below the first coil assembly, and the mounting space of the fan is formed below the second coil assembly, and the heat dissipation space and the mounting space are communicated.

[0017] According to the induction cooker provided by the embodiment of the present application, the induction cooker further comprises a circuit board, and the circuit board is arranged in the heat dissipation space.

[0018] According to the induction cooker provided by the embodiment of the present application, the shell comprises a bottom shell and an intermediate frame, the heat dissipation space and the mounting space are arranged on the bottom shell, the intermediate frame is arranged on the bottom shell, and the intermediate frame is provided with the mounting hole of the coil assembly.

[0019] According to the induction cooker provided by the embodiment of the present application, the air outlet is arranged on the side of the shell away from the fan. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in combination with the drawings and embodiments;

[0021] Figure 1 It is the overall structure schematic view of the induction cooker provided by the embodiment of the present application;

[0022] Figure 2is an exploded view of the coil assembly of the electromagnetic oven provided by the embodiment of the utility model;

[0023] Figure 3 is a sectional view of the electromagnetic oven provided by the embodiment of the utility model;

[0024] Figure 4 is a schematic diagram of the overall structure of the electromagnetic oven provided by the embodiment of the utility model;

[0025] Figure 5 is an exploded view of the electromagnetic oven provided by the embodiment of the utility model.

[0026] The signs in the drawings are as follows:

[0027] 100, coil assembly; 110, isolation pad; 111, heat dissipation gap; 120, heating coil; 130, heat insulation piece; 140, shielding piece; 141, air hole; 160, magnet; 161, ventilation gap; 170, first coil assembly; 180, second coil assembly; 190, insulating plate;

[0028] 200, shell; 210, heat dissipation space; 220, installation space; 230, air inlet; 240, air outlet; 250, bottom shell; 260, middle frame; 261, installation hole; 270, containing space;

[0029] 300, fan;

[0030] 400, circuit board;

[0031] 500, microcrystalline plate. DETAILED DESCRIPTION

[0032] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the written part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0033] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of up, down, front, back, left, right and the like indicated by the drawings, is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as the limitation of the utility model.

[0034] In the description of the utility model, if there is a word such as "several" description, its meaning is one or more, the meaning of multiple is two and above, greater than, less than, exceed etc. Understand as not including the number, above, below, within etc. Understand as including the number. If there is a description to the first, second, third is only used for distinguishing technical features for the purpose, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0035] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0036] The electromagnetic oven as a kind of stove, not only be subjected to the heat transferred by the pot on it in use process, while the heat of internal itself device also can not be ignored, therefore, how to effectively dissipate heat is an important problem that electromagnetic oven faces in practical application. The electromagnetic oven in related technology usually adopts fan to dissipate heat, and the heat dissipation effect is poor.

[0037] The following refers to Figures 1 to 5 The electromagnetic oven provided by the utility model is described.

[0038] As Figures 1 to 3 Indicated, according to the electromagnetic oven of the utility model embodiment, including wire coil assembly 100, shell 200 and fan 300, wire coil assembly 100 includes isolation pad 110, heating coil 120 and heat insulating piece 130, isolation pad 110 is set between heating coil 120 and heat insulating piece 130, so that the heat dissipation gap 111 between heating coil 120 and heat insulating piece 130 is formed;Shell 200 has air inlet 230 and air outlet 240, shell 200 has installation space 220, air inlet 230 and air outlet 240 are communicated installation space 220, wire coil assembly 100 is set in installation space 220;Fan 300 at least drives airflow to enter by air inlet 230, and after heat dissipation gap 111, it flows out by air outlet 240.

[0039] The heating coil 120 transmits heat to the pot on the electromagnetic oven by electromagnetic induction to heat food, the isolation pad 110 is located on one side of the pot, and the heat insulation piece 130 can effectively absorb and disperse heat, reduce the damage of heat to the surface of the electromagnetic oven; the heat insulation piece 130 prevents heat transmission, prolongs the service life of the electromagnetic oven; the isolation pad 110 forms a heat dissipation gap 111 between the heating coil 120 and the heat insulation piece 130, and the fan 300 drives air to enter from the air inlet 230, pass through the heat dissipation gap 111, and then flow out from the air outlet 240, which can effectively improve the heat dissipation effect in the electromagnetic oven and avoid damage to the electromagnetic oven caused by local overheating as much as possible; in addition, the heat dissipation gap 111 can improve the heat insulation effect and reduce the influence of heat at the bottom of the pot on the electromagnetic oven.

[0040] It should be noted that, along the center line direction of the coil assembly 100 (such as Figure 3 a direction in the figure), the cross-sectional area of the isolation pad 110 is smaller than the cross-sectional area of the heating element and the heat insulation piece 130, so that the heat dissipation gap 111 has enough space for heat dissipation.

[0041] In some embodiments, the material of the shell 200 is at least one of iron material, stainless steel material and plastic material. The iron material includes cold plate, galvanized iron, iron plate, aluminum plated iron and the like. The plastic material includes polycarbonate, polypropylene, polyester and the like; compared with copper, aluminum and the like, the shell 200 adopts iron material, stainless steel material or plastic material, which can reduce the cost of the shell 200.

[0042] As shown in Figures 2 to 3 In some embodiments, the isolation pad 110 is provided with at least two, the at least two isolation pads 110 are arranged circumferentially along the center line of the coil assembly 100, and the isolation pad 110 extends from the center of the coil assembly 100 to the edge of the coil assembly 100; the heat dissipation gap 111 is formed between the adjacent two isolation pads 110.

[0043] The plurality of isolation pads 110 can better support the heat insulation piece 130, and the heat insulation piece 130 can be ceramic, quartz and the like. Generally, the heat of the pot is concentrated at the center position, the at least two isolation pads 110 are arranged circumferentially along the center line of the coil assembly 100, and the isolation pad 110 extends from the center of the coil assembly 100 to the edge of the coil assembly 100, which can guide the air of the air inlet 230 to the center position of the coil assembly 100, and then guide the air of the center position of the coil assembly 100 to the edge of the coil assembly 100 through the heat dissipation gap 111, and then flow out through the air outlet 240, so as to take away the heat of the heat dissipation gap 111 and achieve the heat dissipation effect.

[0044] As shown in Figures 2 to 3As shown, in some embodiments, the coil assembly 100 further includes a shield 140 and a magnet 160, the magnet 160 being located between the heating coil 120 and the shield 140 such that a ventilation gap 161 is formed between the heating coil 120 and the shield 140; the shield 140 is used to shield the magnetic field of the coil assembly 100.

[0045] Magnet 160 strengthens the magnetic field, and shielding component 140 shields the magnetic field of coil assembly 100. Generally, shielding component 140 is sheet-shaped and can be made of metal materials such as copper and aluminum, which can effectively block the propagation of electromagnetic waves. The shielding sheet can effectively prevent external electromagnetic waves from entering the induction cooker and also prevent electromagnetic waves inside the induction cooker from spreading to the outside, thereby reducing interference with other equipment.

[0046] In related technologies, the outer shell 200 of an induction cooker is typically made of materials such as copper or aluminum to shield electromagnetic waves. However, materials such as copper and aluminum are expensive, and their appearance is easily scratched during production and transportation, resulting in poor aesthetics. In contrast, this utility model embodiment utilizes a shielding component 140 to specifically shield the electromagnetic waves of the coil assembly 100, thereby improving the shielding effect. Furthermore, the outer shell 200 of the induction cooker is not limited to materials such as copper or aluminum and can be made of other materials according to actual needs and cost budgets, offering high flexibility.

[0047] To prevent current leakage or electromagnetic interference to the circuit and other components, and to enhance the shielding effect, an insulating plate 190 can be placed below the coil. The insulating plate 190 serves as electromagnetic isolation and protection. Generally, the insulating plate 190 can be made of metal.

[0048] By using magnet 160 to create a ventilation gap 161 between heating coil 120 and shield 140, the heat dissipation space 210 inside coil assembly 100 can be increased, effectively improving heat dissipation.

[0049] The coil assembly 100 is heated by electromagnetic induction generated by the energization of the heating coil 120. The energization of the heating coil 120 may generate a small amount of heat. The insulating pad 110 is disposed between the heating coil 120 and the heat insulation component 130, so that a heat dissipation gap 111 is formed on one side of the heating coil 120, which is more conducive to the heat dissipation of the heat-generating component.

[0050] like Figures 2 to 3 As shown, in some embodiments, the shielding member 140 has a ventilation hole 141 that connects to the ventilation gap 161, so that the air entering from the air inlet 230 can enter the ventilation gap 161 through the ventilation hole 141, thereby improving the overall ventilation performance of the induction cooker and facilitating the heat dissipation of the induction cooker.

[0051] like Figure 2As shown, in some embodiments, at least two magnets 160 are provided, and the at least two magnets 160 are arranged circumferentially along the center line of the heating coil 120, and the magnets 160 extend from the center of the heating coil 120 to the edge of the heating coil 120, and a ventilation gap 161 is formed between two adjacent magnets 160.

[0052] Generally, the heat of the cookware is concentrated in the center. At least two magnets 160 are arranged circumferentially along the center line of the heating coil 120, and the insulating pad 110 extends from the center of the heating coil 120 to its edge. This allows the air from the air inlet 230 to be directed to the center of the coil assembly 100. The air passing through the ventilation gap 161 from the center of the coil assembly 100 is then directed to its edge and exited through the air outlet 240, thus carrying away the heat from the ventilation gap 161 and achieving a heat dissipation effect. The center line of the heating coil 120 is the same as the center line of the coil assembly 100.

[0053] like Figure 4 As shown, in some embodiments, two coil assemblies 100 are provided, namely a first coil assembly 170 and a second coil assembly 180, which are arranged side by side. Multiple coil assemblies 100 can be adapted to multiple cookware.

[0054] like Figure 3 As shown, in some embodiments, a heat dissipation space 210 is formed below the first coil assembly 170, and a fan 300 receiving space 270 is formed below the second coil assembly 180. The heat dissipation space 210 and the receiving space 270 are connected.

[0055] Understandably, a heat dissipation space 210 is formed below the first coil assembly 170, which is beneficial for the heat of the first coil assembly 170 to diffuse to the outside of the induction cooker. The fan 300 is installed below the second coil assembly 180. The fan 300 drives air to enter through the air inlet 230 and blow it toward the second coil assembly 180, effectively improving the heat dissipation effect of the second coil assembly 180. The heat dissipation space 210 and the receiving space 270 are connected, so that the air blown by the fan 300 can flow into the heat dissipation space 210, improving the air flow inside the induction cooker, and at the same time, it can dissipate heat for the first coil assembly 170. It should be noted that the air outlet side of the fan 300 faces the second coil assembly 180 so that the fan 300 can drive the airflow to the second coil assembly 180.

[0056] like Figure 5As shown in some embodiments, the induction cooker further comprises a circuit board 400, which is arranged in the heat dissipation space 210 and used to control and adjust various working parameters of the induction cooker, such as heating power, temperature, timing, working mode, etc. The circuit board 400 is prone to heat during working process. Arranging the circuit board 400 in the heat dissipation space 210 is conducive to dispersing the heat of the circuit board 400. The airflow through the heat dissipation space 210 can take away the heat generated by the circuit board 400, so as to avoid damage of the circuit board 400 due to overheating as far as possible. A fan can be arranged inside the circuit board 400 to improve the heat dissipation effect. The structure and design of the circuit board 400 can be arranged according to actual requirements, and the structure and design of the circuit board 400 are not the contents protected by the utility model.

[0057] In some embodiments, the air inlet 230 is located at the bottom of the shell 200 and corresponds to the arrangement of the fan 300.

[0058] Generally, the pot is located on the induction cooker, that is, the heat of the pot is transmitted from the top to the bottom of the induction cooker. Therefore, the bottom air inlet is more conducive to the entry of cold air into the induction cooker, which is conducive to cooling. Arranging the air inlet 230 at the bottom of the shell 200 is conducive to introducing the cold air at the bottom into the induction cooker through the air inlet 230. If the air inlet 230 is designed on the side or the top, it is easy to suck dust, oil fume or other impurities in the air, which is easy to cause the impurities to block the air inlet 230 and affect the heat dissipation effect. Arranging the air inlet 230 corresponding to the fan 300 makes the fan 300 directly drive the air to enter the induction cooker through the air inlet 230, thereby improving the air inlet amount.

[0059] As shown in some embodiments, the air inlet 230 is arranged on the bottom of the shell 200, and the air outlet 240 is arranged on the middle frame 260 and the bottom of the shell 200. Figure 2 , Figure 3 and Figure 5 As shown in some embodiments, the shell 200 comprises a bottom shell 250 and a middle frame 260. The heat dissipation space 210 and the containing space 270 are arranged on the bottom shell 250. The middle frame 260 is arranged on the bottom shell 250 and is provided with mounting holes 261 of the coil assembly 100. The air enters through the air inlet 230, passes through the circuit board 400 in the heat dissipation space 210, and then flows out through the air outlet 240. Alternatively, the air enters through the air inlet 230, passes through the shielding piece 140, the ventilation gap 161 and the heat dissipation gap 111 of the second coil assembly 180, and then flows out through the air outlet 240.

[0060] The middle frame 260 is provided with a groove to accommodate the coil assembly 100. The shielding sheet of the coil assembly 100 is arranged in the mounting hole 261, and the mounting hole 261 can also have a ventilation effect. The air inlet 230 is arranged on the bottom shell 250, and the air outlet 240 is arranged on the middle frame 260 and the bottom shell 250, so that multiple air outlet paths are formed in the induction cooker, which is conducive to heat dissipation.

[0061] AsFigure 4 and Figure 5 As shown, in some embodiments, the air outlet 240 is located on the side of the outer casing 200 away from the fan 300, which makes the airflow path inside the induction cooker longer, which is beneficial to the gas flow inside the induction cooker, making the heat easier to disperse, avoiding excessive heat concentration, and effectively dissipating heat.

[0062] The bottom shell 250 has a first air outlet sidewall located on the opposite side of the fan 300. Multiple air outlets 240 are provided on the first air outlet sidewall so that the air blown out by the fan 300 flows to the air outlets 240 through the longest possible path. The length direction of the air outlets 240 is arranged along the thickness direction of the bottom shell 250 to maximize the air volume.

[0063] The intermediate frame 260 has a second air outlet sidewall located opposite the fan 300. Multiple air outlets 240 are provided on the second air outlet sidewall, allowing the air blown by the fan 300 to flow through the longest possible path to the air outlets 240. The length of the air outlets 240 is aligned with the thickness of the bottom shell 250 to maximize the airflow. Air outlets 240 are also provided on the first and second sidewalls adjacent to the second air outlet sidewall at their ends closest to the second air outlet sidewall to further increase the airflow.

[0064] like Figure 4 As shown, in some embodiments, the induction cooker also includes a microcrystalline plate 500, which covers the coil assembly. The microcrystalline plate 500 acts as the cooktop material in the induction cooker, supporting the cookware. The microcrystalline plate 500 is a composite material composed of glass and crystals, possessing excellent high-temperature resistance, capable of withstanding temperatures up to 700°C without cracking or deforming due to thermal expansion and contraction. This ensures that the microcrystalline plate 500 remains stable during prolonged operation of the induction cooker, preventing damage from high temperatures. The microcrystalline plate 500 can directly contact the cookware and withstand the high temperatures generated when the cookware is heated, avoiding overheating that could lead to material deformation or cracking.

[0065] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An electromagnetic oven, characterized by, The application relates to an electromagnetic induction cooker. The electromagnetic induction cooker comprises a wire coil assembly (100), a shell (200) and a fan (300). The wire coil assembly (100) comprises an isolation pad (110), a heating coil (120) and a heat insulation piece (130), the isolation pad (110) is arranged between the heating coil (120) and the heat insulation piece (130), and a heat dissipation gap (111) is formed between the heating coil (120) and the heat insulation piece (130). The shell (200) has an air inlet (230) and an air outlet (240), and the shell (200) has a mounting space (220), the air inlet (230) and the air outlet (240) are communicated with the mounting space (220), and the wire coil assembly (100) is arranged in the mounting space (220).

2. The electromagnetic stove according to claim 1, characterized in that, The fan (300) drives air flow to enter from the air inlet (230), pass through the heat dissipation gap (111) and flow out from the air outlet (240).

3. The electromagnetic stove according to claim 1, characterized in that, The shell (200) is made of at least one of iron, stainless steel and plastic.

4. The electromagnetic stove according to claim 1, characterized in that, The isolation pad (110) is arranged in at least two, the at least two isolation pads (110) are arranged along the circumferential direction of the center line of the wire coil assembly (100), and the isolation pads (110) extend from the center of the wire coil assembly (100) to the edge of the wire coil assembly (100); the heat dissipation gap (111) is formed between the adjacent two isolation pads (110).

5. The electromagnetic stove according to claim 4, characterized in that, The wire coil assembly (100) further comprises a shielding piece (140) and a magnet (160), the magnet (160) is arranged between the heating coil (120) and the shielding piece (140), so that a ventilation gap (161) is formed between the heating coil (120) and the shielding piece (140); the shielding piece (140) is used for shielding the magnetic field of the wire coil assembly (100).

6. The electromagnetic stove according to claim 4, characterized in that, The shielding piece (140) has a ventilation hole (141) which is communicated with the ventilation gap (161).

7. The electromagnetic stove according to any one of claims 1 to 6, characterized in that, The magnet (160) is arranged in at least two, the at least two magnets (160) are arranged along the circumferential direction of the center line of the heating coil (120), and the magnets (160) extend from the center of the heating coil (120) to the edge of the heating coil (120); the ventilation gap (161) is formed between the adjacent two magnets (160).

8. The electromagnetic stove according to claim 7, characterized in that, The wire coil assembly (100) is arranged in two, that is, a first wire coil assembly (170) and a second wire coil assembly (180), the first wire coil assembly (170) and the second wire coil assembly (180) are arranged side by side; a heat dissipation space (210) is formed below the first wire coil assembly (170), an accommodating space (270) of the fan (300) is formed below the second wire coil assembly (180), and the heat dissipation space (210) and the accommodating space (270) are communicated. The electromagnetic induction cooker further comprises a circuit board (400), and the circuit board (400) is arranged in the heat dissipation space (210).

9. The electromagnetic stove according to claim 8, characterized in that, The shell (200) comprises a bottom shell (250) and an intermediate frame (260), the heat dissipation space (210) and the containing space (270) are arranged on the bottom shell (250); the intermediate frame (260) is arranged on the bottom shell (250), and the intermediate frame (260) is provided with a mounting hole (261) of the wire coil assembly (100).

10. The electromagnetic stove according to any one of claims 1 to 6, characterized in that, The air outlet (240) is arranged on the side of the shell (200) away from the fan (300).

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