An electromagnetic cooker that can be used for both concave and flat cooking

Abstract

The present invention discloses a concave and flat dual-purpose induction cooker, which comprises a housing; a heating component arranged in the housing, the heating component includes an adjustable bracket and a coil plate fixed on the adjustable bracket, the adjustable bracket includes a central body, a connecting rod bracket radially distributed outside the central body, and an adjusting slider rotatably connected to the connecting rod bracket, the connecting rod bracket is rotatably connected to the central body, the adjusting slider moves away from the central body along the extending direction of the connecting rod bracket until the connecting rod bracket is horizontal, so that the heating component is in a flat state; the adjusting slider moves close to the central body along the extending direction of the connecting rod bracket until the middle part of the connecting rod bracket is lifted, so that the heating component has a concave state. The induction cooker of the present invention has the advantages of saving space, avoiding oil pollution, and being applicable to various cookware.

Description

Technical Field

[0001] The present invention belongs to the technical field of electromagnetic cookers, and particularly relates to a concave and flat dual-use electromagnetic cooker. Background Art

[0002] An electromagnetic cooker utilizes the electromagnetic induction phenomenon, causing eddy currents to appear inside a conductor in an alternating magnetic field. The Joule heat effect of the eddy currents heats the conductor, thereby achieving heating.

[0003] Most commercially available models of household electromagnetic cookers are flat electromagnetic cookers, while commercial ones involve concave electromagnetic cookers. However, whether it is a household electromagnetic cooker or a commercial electromagnetic cooker, the cookware applicable when the product leaves the factory is specified. For example, using a concave-bottomed pot on a flat electromagnetic cooker will cause the pot to be placed unstably.

[0004] Chinese Patent Application No. 202010113730.8 discloses an electromagnetic cooker, which includes an electromagnetic cooker body. A connecting seat is provided on the wall portion of the electromagnetic cooker body corresponding to the air outlet. The connecting seat has a connecting cavity with three open sides. The three open sides of the connecting seat respectively include: a first opening directly opposite to the air outlet, a second opening opposite to the first opening, and a top opening located between the first opening and the second opening. It also includes a heating component, which is rotatably arranged on the side wall corresponding to the second opening of the connecting seat, so as to achieve flipping relative to the electromagnetic cooker body. When cooking a round-bottomed pot, the heating component can be flipped onto the electromagnetic cooker body as long as needed.

[0005] Although the structure of this kind of electromagnetic cooker can be applicable to flat and concave cookware, setting a rotatable heating component means that at least one more heating coil needs to be set. Moreover, when the heating component is not in use, it needs to be turned up, which not only has the problem of additional space occupation, but also the oil fume generated in the pot during cooking will directly contact and adhere to the turned-up heating component, making it inconvenient to clean. Summary of the Invention

[0006] In view of the problems existing in the prior art that setting a rotatable heating component to adapt to concave cookware will occupy space and is likely to contact and adhere to oil fume during use, the present invention proposes the following technical solutions:

[0007] A concave and flat dual-use electromagnetic cooker includes:

[0008] A housing;

[0009] A heating component disposed inside the housing, the heating component includes an adjustable bracket and a wire coil fixed on the adjustable bracket, the adjustable bracket includes a central body, connecting rod brackets radially distributed outside the central body, and adjusting sliders rotatably connected to the connecting rod brackets, the connecting rod brackets are rotatably connected to the central body, and the adjusting sliders move away from the central body along the extending direction of the connecting rod brackets until the connecting rod brackets are horizontal, making the heating component in a planar state;

[0010] The adjusting sliders move close to the central body along the extending direction of the connecting rod brackets until the middle parts of the connecting rod brackets are jacked up, making the heating component in a concave state.

[0011] Preferably, the wire coil includes alternately arranged spiral parts and straight parts, the spiral parts are fixed on the connecting rod brackets, and the straight parts are arranged between adjacent connecting rod brackets.

[0012] Preferably, the adjustable bracket further includes a chassis, the central body is fixed on the chassis, an adjusting component for synchronously driving the radially distributed adjusting sliders is installed inside the chassis, the adjusting component includes a main bevel gear, a sub-bevel gear and a screw rod, the main bevel gear is arranged at the center of the chassis, the sub-bevel gear meshes with the main bevel gear and is radially distributed on the periphery of the main bevel gear, the sub-bevel gear is fixedly connected to the screw rod, a nut cooperating with the screw rod is arranged inside the adjusting slider, the screw rod passes through the adjusting slider and the nut, the screw rod is rotatably installed on the chassis, and the bottom of the adjusting slider is a plane and contacts with the chassis.

[0013] Preferably, the adjustable bracket further includes a reverse prevention component, the reverse prevention component includes reverse prevention teeth and a reverse prevention elastic sheet, the reverse prevention teeth are arranged on the side of the adjusting slider, the reverse prevention elastic sheet is arranged on the adjusting slider, the reverse prevention elastic sheet protrudes from the adjusting slider and is stuck between two adjacent reverse prevention teeth, the reverse prevention teeth and the reverse prevention elastic sheet have the same inclination direction, and as the reverse prevention teeth approach the adjusting slider, the distance between the reverse prevention teeth and the main bevel gear decreases.

[0014] Preferably, the reverse prevention component further includes a pressing block, a spring and a ejector rod, the reverse prevention elastic sheet is arranged in the adjusting slider in a V shape and both ends extend out of the adjusting slider, the pressing block is arranged on the top of the adjusting slider and one end is rotatably connected to the adjusting slider, the ejector rod is arranged at the bottom of the pressing block, one end of the ejector rod is located at the V-shaped bend of the reverse prevention elastic sheet, the spring is arranged below the pressing block to support the pressing block, pressing down the pressing block makes the ejector rod eject the reverse prevention elastic sheet, and the reverse prevention elastic sheet retracts towards the adjusting slider and gets away from the reverse prevention teeth.

[0015] Preferably, it further includes a panel, the panel includes a fixed part fixed on the housing and a movable part detachably installed on the fixed part, and the heating component is arranged below the movable part.

[0016] Preferably, a protective block is rotatably connected to the middle jacking part of the connecting rod bracket.

[0017] Preferably, the protective block is made of glass-ceramics.

[0018] The beneficial effects of the present invention are as follows:

[0019] (1) Saving space. By arranging a heating component that can be adjusted to change its state inside the housing to adapt to flat and concave cookware, not only is there no need to additionally arrange a set of coils, but also the heating component that flips at the top is directly eliminated, and the heating component is integrated inside the housing, saving the occupied space of the induction cooker.

[0020] (2) Avoiding oil pollution. Based on the arrangement that the heating component that can be adjusted to change its state is integrated inside the housing, whether using flat or concave cookware, there are no components on the top and the peripheral side of the cookware, so the oil fume generated during cooking is more difficult to adhere to the induction cooker.

[0021] (3) Being applicable to various cookware. Compared with the arrangement of a heating component that can be flipped up, the heating component of the present invention does not have a fixed concave shape. Its concave shape is formed by moving and adjusting the slider to change the bending state of the connecting rod bracket and then cooperating with the central body. The opening and depth of the concave surface are continuously adjustable, so it can adapt to cookware of different shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structural schematic diagram (three-dimensional state) of the flat and concave dual-purpose induction cooker is shown;

[0023] Figure 2 The structural schematic diagram (planar state) of the flat and concave dual-purpose induction cooker is shown;

[0024] Figure 3 The schematic diagrams of different states of the heating component are shown;

[0025] Figure 4 The structural schematic diagram of the middle rotating part of the connecting rod bracket is shown;

[0026] Figure 5 The structural schematic diagram of the wire coil is shown;

[0027] Figure 6 The structural schematic diagram of the adjusting component for synchronously driving and adjusting the slider inside the chassis is shown;

[0028] Figure 7 The structural schematic diagram of the anti-reverse component of the adjusting slider is shown;

[0029] Figure 8 The structural schematic diagram (top view state) of the anti-reverse component for releasing the anti-reverse state of the adjusting slider is shown;

[0030] Figure 9 The figure shows a schematic structural view (front view state) of a reverse-blocking component for releasing the reverse-blocking state of an adjusting slider. Specific embodiments

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0032] Refer to Figure 1 and 2 , which is a schematic structural view of a concave and flat dual-purpose induction cooker. The concave and flat dual-purpose induction cooker includes a housing 1 and a panel 2 installed on the top of the housing 1. The panel 2 includes a fixed part 21 fixed on the housing 1 and a movable part 22 detachably installed on the fixed part 21. A heating component 3 for realizing electromagnetic induction is installed below the movable part 22. When the movable part 22 is installed on the fixed part 21, the heating component 3 is enclosed in the housing 1. When the movable part 22 is detached from the fixed part 21, the heating component 3 is exposed. Refer to Figure 2 , which is a schematic view of the state where the heating component 3 is exposed when the movable part 22 is detached.

[0033] The heating component 3 is morphologically adjustable. When the movable part 22 is detached, the heating component 3 can be adjusted from a flat state to a state with a concave surface to directly apply to concave-bottom cookware.

[0034] Figure 3 The figure shows schematic views of different states of the heating component 3. Among them, Figure 3 (a) shows a schematic view of the heating component 3 in a flat state, Figure 3 (b) shows a schematic view of the heating component 3 with a concave surface.

[0035] The heating component 3 includes a coil disk 31 and an adjustable bracket 32. The coil disk 31 is fixedly installed on the adjustable bracket 32, and the coil disk 31 changes its form along with the adjustable bracket 32. In this embodiment, the adjustable bracket 32 includes a chassis 321, a connecting rod bracket 322, an adjusting slider 323, and a central body 324. Among them, the central body 324 protrudes from the top of the chassis 321. The connecting rod bracket 322 is a two-link structure with a rotational connection. The connecting rod bracket 322 is radially distributed outside the central body 324. One end of the connecting rod bracket 322 is rotationally connected to the central body 324, and the other end of the connecting rod bracket 322 is rotationally connected to the adjusting slider 323. The adjusting slider 323 is slidably connected to the chassis 321, and the coil disk 31 is installed on the connecting rod bracket 322.

[0036] The material of the adjustable bracket 32 is insulating plastic, such as PPS.

[0037] Refer to Figure 3(b), when the adjustment slider 323 slides towards the central body 324, the connecting rod bracket 322 is lifted upwards from the middle rotating part, so that the radially distributed connecting rod brackets 322 and the central body 324 form a concave state with a lower middle and a higher outer side, and this concave state can be used to fit concave-bottom cookware.

[0038] Figure 4 The structure diagram of the middle rotating part of the connecting rod bracket 322 is shown. The middle rotating part of the connecting rod bracket 322 is also rotatably connected with a protective block 325. The protective block 325 can be made of the same material as the panel 2, such as high-temperature resistant materials like microcrystalline glass. When the heating component 3 is adjusted to the concave state, the protective block 325 is also in the top position and is in a movable state. When placing a concave-bottom cookware, the bottom of the cookware will contact the protective block 325, making the protective block 325 pad under the bottom of the cookware, separating the cookware from the wire coil 31, so as to play a protective role for the wire coil 31.

[0039] Figure 5 The structure diagram of the wire coil 31 is shown. The wire coil 31 includes a spiral part 312 and a straight part 311. The spiral part 312 and the straight part 311 are arranged alternately at intervals, that is, one straight part 311 is connected to one spiral part 312, and then another straight part 311, and so on repeatedly. And the wire coil 31 is fixed on the connecting rod bracket 322 through the straight part 311, and the spiral part 312 is located between adjacent connecting rod brackets 322. In this way, when the state of the adjustable bracket 32 changes, the spiral part 312 can adapt to the change in the distance between adjacent adjustable brackets 32 by compressing or stretching deformation: when the connecting rod bracket 322 is completely flattened, the distance between the connecting rod brackets 322 is the largest, and at this time the spiral part 312 is stretched into an approximately straight state; when the connecting rod bracket 322 is lifted as in Figure 3 (b), the distance between the connecting rod brackets 322 is reduced, and at this time the spiral part 312 retracts to the spiral state.

[0040] An adjustment component for synchronously driving the radially distributed adjustment sliders 323 is installed inside the chassis 321. Figure 6The figure shows a schematic structural diagram of an adjustment component for synchronously driving and adjusting the slider 323 inside the chassis 321. The adjustment component includes a main bevel gear 331, a secondary bevel gear 332, and a lead screw 333. The main bevel gear 331 is installed at the center of the chassis 321. The secondary bevel gear 332 and the lead screw 333 are set in groups, that is, one end of each lead screw 333 is fixed with a secondary bevel gear 332. The secondary bevel gears 332 are distributed on the circumference of the main bevel gear 331 and mesh with the main bevel gear 331, so that the lead screws 333 are also radially distributed like the link brackets 322. Both ends of the lead screw 333 are rotatably installed on the chassis 321 through fixed seats 334. The lead screw 333 penetrates through the adjustment slider 323 as a whole. A nut 335 that cooperates with the lead screw 333 is installed inside the adjustment slider 323. The bottom of the adjustment slider 323 is a plane that directly contacts the chassis 321 to achieve the purpose of limiting position.

[0041] When the adjustment slider 323 moves along the lead screw 333 towards the main bevel gear 331, the nut inside the adjustment slider 323 interacts with the lead screw 333, causing the lead screw 333 to rotate and driving the secondary bevel gear 332 to rotate. The secondary bevel gear 33 meshes with the main bevel gear 331, driving the main bevel gear 331 to rotate, thereby driving other secondary bevel gears 33 to rotate synchronously and in the same direction. Furthermore, the radially distributed adjustment sliders 323 move synchronously towards the main bevel gear 331. Since the adjustment slider 323 is directly connected to the link bracket 322, the link bracket 322 as a whole will be directly driven to lift upwards at the rotational connection part to form a concave state.

[0042] Figure 7 The figure shows a schematic structural diagram of the anti - reverse component of the adjustment slider 323. The anti - reverse component includes anti - reverse teeth 341 formed on the side of the adjustment slider 323 and an anti - reverse elastic piece 342 fixed to the adjustment slider 323. The anti - reverse elastic piece 342 extends out of the adjustment slider 323. The anti - reverse teeth 341 and the anti - reverse elastic piece 342 have the same inclination direction, and as the anti - reverse teeth 341 approach the adjustment slider 323, the distance between the anti - reverse teeth 341 and the main bevel gear 331 also decreases. Figure 7 In the figure, the A end is the end close to the main bevel gear 331, and the B end is the end far from the main bevel gear 331. It can be seen that when the anti - reverse elastic piece 342 is stuck between two adjacent anti - reverse teeth 341, the adjustment slider 323 can slide from the B end to the A end, while the movement from the A end to the B end will be restricted. Thus, it can be ensured that when the link bracket 322 as a whole lifts upwards to form a concave state, the adjustment slider 323 will not retract due to the weight of the pot body, ensuring the stability of the concave state.

[0043] Figure 8 and Figure 9The figure shows a schematic structural diagram of the reverse-preventing state release structure in the reverse-preventing component of the adjustment slider 323. The reverse-preventing component further includes a pressure block 343, a spring 345, and a ejector rod 346. The reverse-preventing elastic piece 342 is arranged in a V shape within the adjustment slider 323 and both ends extend out of the adjustment slider 323. The pressure block 343 is arranged at the top of the adjustment slider 323 and one end is rotatably connected to the adjustment slider 323. The ejector rod 346 is arranged at the bottom of the pressure block 343, and one end of the ejector rod 346 is located at the V-shaped bend of the reverse-preventing elastic piece 342. The spring 345 is arranged below the pressure block 343 to support the pressure block 343.

[0044] When it is necessary to change the concave state of the adjustable bracket 32, especially when it is necessary to move the adjustment slider 323 away from the central body 324, press the pressure block 343 downward in the direction of the arrow shown in Figure 9 The middle part of the reverse-preventing elastic piece 342 will be pushed forward by the pressure block 343, causing the reverse-preventing elastic piece 342 to retract on the one hand and press closer to the adjustment slider 323 on the other hand, so that the reverse-preventing elastic piece 342 disengages from the reverse-preventing teeth 341, and thus the adjustment slider 323 can slide directly.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it.

Claims

1. A concave and flat dual-purpose electromagnetic cooker, characterized in that: include: case; A heating assembly is disposed within the housing, the heating assembly comprising an adjustable bracket and a wire reel fixed to the adjustable bracket, the adjustable bracket comprising a central body, connecting rod brackets radially distributed outside the central body, and an adjusting slider rotatably connected to the connecting rod bracket, the connecting rod bracket being rotatably connected to the central body, the adjusting slider being moved away from the central body along an extension direction of the connecting rod bracket until the connecting rod bracket is horizontal so that the heating assembly is in a planar state; The adjusting slider moves along the extending direction of the connecting rod bracket close to the central body to the middle of the connecting rod bracket and lifts up to make the heating component have a concave state; The adjustable bracket also includes a chassis, the central body is fixed on the chassis, an adjustment assembly for synchronously driving radially distributed adjustment sliders is installed in the chassis, the adjustment assembly includes a main bevel gear, a secondary bevel gear and a screw rod, the main bevel gear is arranged at the center of the chassis, the secondary bevel gear is meshed with the main bevel gear and is radially distributed on the circumference of the main bevel gear, the secondary bevel gear is fixedly connected to the screw rod, a nut matching the screw rod is provided in the adjusting slider, the screw rod passes through the adjusting slider and the nut, the screw rod is rotatably mounted on the chassis, and the bottom of the adjusting slider is flat and in contact with the chassis; The adjustable bracket also includes a non-return assembly, which includes a non-return tooth and a non-return spring. The non-return tooth is arranged on the side of the adjusting slider, and the non-return spring is arranged on the adjusting slider. The non-return spring protrudes from the adjusting slider and is stuck between two adjacent non-return teeth. The non-return tooth and the non-return spring have the same inclination direction. As the non-return tooth approaches the adjusting slider, the distance between the non-return tooth and the main bevel gear decreases.

2. The concave and flat dual-purpose electromagnetic cooker according to claim 1, characterized in that: The wire drum includes a spiral portion and a straight portion that are alternately arranged. The straight portion is fixed on the connecting rod bracket, and the spiral portion is arranged between adjacent connecting rod brackets.

3. The concave and flat dual-purpose electromagnetic cooker according to claim 1, characterized in that: The anti-return assembly also includes a pressure block, a spring, and a push rod. The anti-return spring is arranged in a V shape in the adjusting slider and extends out of the adjusting slider at both ends. The pressure block is arranged at the top of the adjusting slider and one end is rotatably connected to the adjusting slider. The push rod is arranged at the bottom of the pressure block, and one end of the push rod is located at the V-shaped bend of the anti-return spring. The spring is arranged below the pressure block to support the pressure block. Pressing the pressure block downward causes the push rod to push out the anti-return spring, and the anti-return spring retracts toward the adjusting slider and presses against the anti-return tooth to disengage from the anti-return tooth.

4. The concave and flat dual-purpose electromagnetic cooker according to claim 1, characterized in that: The utility model further comprises a panel, wherein the panel comprises a fixed portion fixed on the shell and a movable portion detachably mounted on the fixed portion, and the heating component is arranged below the movable portion.

5. The concave and flat dual-purpose electromagnetic cooker according to claim 1, characterized in that: The middle jacking portion of the connecting rod bracket is rotatably connected to a protective block.

6. The concave and flat dual-purpose electromagnetic cooker according to claim 5, characterized in that: The protective block is made of microcrystalline glass.

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