Smart Stir-Fry Machine

Abstract

This application discloses a smart stir-fry machine in the technical field of cooking equipment. The smart stir-fry machine includes a sealed chamber fitted with a pan assembly, the pan assembly comprising a pan, a heating device for heating the pan, and a pan lid capable of closing the opening of the pan, the pan containing the ingredients rotating and sealed with the pan lid above it, at least one set of microwave generators fitted to the pan lid supply microwaves to the ingredients in the pan. According to this application, in addition to the conventional heating method, a microwave heating assembly is added and the microwave heating assembly is fitted to a pan lid that does not need to be removed on a daily basis. The microwaves generated by the microwave heating assembly are supplied directly or via at least one waveguide to the ingredients rotating with the pan while being stirred and stir-fried. This allows for balanced heating of the inside and outside of the ingredients being cooked, significantly reducing cooking time, and resulting in a dish that is crispy on the outside and tender on the inside.

Description

Technical Field

[0001] This application relates to a smart stir-frying machine, and particularly to a smart stir-frying machine with microwave heating as an auxiliary heat source.

Background Art

[0002] Conventional smart stir-frying machines are composed of a device frame, a sealed chamber, a pot assembly, a material feeding device, etc. Such smart stir-frying machines can cook dishes based on a set program to a level comparable to stir-fried dishes cooked by a cook, but still have the following deficiencies.

[0003] 1. Conventional smart stir-frying machines have a single heating method, low heating efficiency, and a long time required to cook one dish.

[0004] 2. When cooking light and large-volume vegetable ingredients, relying only on conduction heat, the penetration of heat into the dishes is likely to be insufficient.

[0005] 3. When cooking meat ingredients, when the heating output is large, if the time is short, the heat penetrates through the outside of the cooked ingredients but is insufficient inside, and if the time is long, the heat penetrates through the inside of the cooked ingredients but the outside is likely to burn.

Summary of the Invention

Problems to be Solved by the Invention

[0006] The technical problem to be solved by this application is to provide a smart stir-frying machine that can effectively improve cooking efficiency and cooking quality, and shorten the time difference in the penetration of heat inside and outside the cooked ingredients.

Means for Solving the Problems

[0007] To solve the above technical problems, this application provides a smart stir-frying machine, which includes a sealed chamber with a pot assembly mounted thereon. The aforementioned pot assembly consists of a pot, a heating device for heating the pot, and a pot lid capable of closing the opening of the pot. After the pot containing the ingredients rotates and is sealed and closed with the lid above it, at least one set of microwave generators attached to the lid supplies microwaves to the ingredients in the pot.

[0008] Preferably, the microwave generator supplies microwaves into the pot via at least one waveguide. A waveguide cover is provided at the outlet of the waveguide.

[0009] Preferably, the pot lid is provided with a smoke exhaust pipe for discharging the smoke generated in the pot to a smoke treatment device. The smoke exhaust pipe is equipped with a shielding structure to prevent microwaves from leaking to the outside due to the airflow.

[0010] Preferably, the pan is further provided with a fork that can be rotated relative to the pan and used to stir and sauté the ingredients while turning them over.

[0011] Preferably, a sealing structure capable of preventing microwave leakage is provided between the pot lid and the pot opening.

[0012] Preferably, the control circuit is further provided with a control module that cuts off the operating power to the magnetron of the microwave generator when an open signal is transmitted to the pot lid or the pot.

[0013] Preferably, a contact switch is provided between the pot lid and the pot opening to cut off the power to the control circuit that controls the microwave generator when the pot lid separates from the pot opening.

[0014] Preferably, a microwave leakage detection device electrically connected to the microwave radiation alarm device of the control circuit is provided near the outside of the pot lid and inside the smoke exhaust pipe.

[0015] In conventional technology, the heating method of stir-fry machines is usually relatively simple, using either conduction heating or heating by electromagnetic coils. With a single heating method, cooking time is too long, and the quality of the food tends to deteriorate. According to the present invention, in addition to the main heating method of electromagnetic heating, a microwave heating assembly is added, and the microwave heating assembly is attached to the pot lid, which does not need to be removed on a daily basis. The microwaves generated by the microwave heating assembly are supplied directly to the food rotating with the pot while it is being stirred and stir-fried, or via at least one waveguide. The advantage of this structure is that the inside and outside of the food being cooked are heated evenly, cooking time can be significantly reduced, and the cooked food is crispy on the outside and tender on the inside. [Brief explanation of the drawing]

[0016] [Figure 1] This is a schematic diagram of the structure of the smart stir-fry machine of the present invention. [Figure 2] This is a cross-sectional view of the pan and lid of the smart stir-fry machine according to the present invention. [Figure 3] This is a cross-sectional view of the pan lid for the smart stir-fry machine according to the present invention. [Modes for carrying out the invention]

[0017] As shown in Figure 1, the smart stir-fry machine of the present invention includes an equipment casing 10, which further includes a sealed chamber 100 (the sealed chamber 100 is formed by surrounding an inner casing 20 provided inside the equipment casing 10 and having an opening on the front side with the door panel 11 of the cooking machine), a pan assembly, a pan lifting device 70, a material input device 60, a pan working position control device 80, an oil fumes treatment device 80, and a main control device.

[0018] The pot assembly comprises a pot 40, a heating device 30 for heating the pot 40, and a pot lid 50 capable of closing the opening of the pot 40. The heating device 30 consists of an inner housing, a heating assembly, and an outer housing. Preferably, the upper end of the inner housing is open, the bottom of the inner housing is flat, and the vertical cross-sectional shape of the inner housing is the same as the arc shape of the vertical cross-section of the lower half of the pot 40. The heating assembly consists of an electromagnetic coil and a plurality of fixing members, the electromagnetic coil is wrapped around the outer wall of the inner housing and fixed to the inner housing via the fixing members, and the outer housing has a cylindrical structure with an open upper end. The pot 40 is housed in the inner housing and is rotatable around its central axis relative to the heating device 30.

[0019] The pot lid 50 is provided inside the sealed chamber 100 and positioned on the upper rear side of the sealed chamber 100. The heating device 30 is provided inside the sealed chamber 100 so as to move the opening of the pot 40 toward the pot lid 50 by the pot lifting device 70 and seal it with the pot lid 50 to close it. The ingredient input device 60 is used to input ingredients into the pot 40 and is provided inside the sealed chamber 100 and positioned above the pot 40. The pot work position control device 80 is used to fix the heating device 30 to the pot lifting device 70 and to control the heating device 30 so as to invert it so that the opening of the pot 40 faces the corresponding work position (for example, the opening faces the pot lid position, the opening faces the ingredient input device 60 position, the opening faces the serving position, etc.) in order to perform the corresponding operation.

[0020] The oil mist treatment device 80 is provided in an intermediate layer formed by the equipment casing 10 and the inner casing 20. The pot lid 50 has a smoke exhaust port, which communicates with the oil mist treatment device 80 via a smoke exhaust pipe. The smoke generated in the pot 40 is discharged to the oil mist treatment device 80 for treatment, and then discharged from the sealed chamber 100 or returned to the sealed chamber 100 for circulation.

[0021] According to the present application, in addition to the heating by the heating device 30, by adding microwave heating as an auxiliary heat source to supply heat energy to the pot 40, problems such as losses during high-power heating of the electromagnetic coil or insufficient heat supply can be solved. By using the rapid heating method by microwaves as auxiliary heating, the cooking efficiency can be greatly improved, and the problem that the heat penetration of the ingredients inside and outside is not uniform during cooking in the conventional single heating method can be solved. Hereinafter, it will be described in detail in relation to specific embodiments.

[0022] As shown in FIGS. 2 to 3, the material of the pot lid 50 is a microwave shielding material, and includes a turntable assembly and an inner lid assembly. The turntable assembly is provided coaxially with the inner lid assembly. The turntable assembly is composed of an upper fixed plate 51 and a lower fixed plate 52. The pot lid body 53 of the inner lid assembly is rotatably arranged between the upper fixed plate 51 and the lower fixed plate 52. A through hole adapted to the upper fixed plate 51 is formed on the rear side surface of the inner casing 20. The outer surface of the upper fixed plate 51 (the surface facing the lower fixed plate 52 is the inner side, and the opposite surface is the outer side) passes through the through hole and is fixed in the through hole through a mounting frame provided on the rear outer wall of the inner casing 20, thereby fixing the entire rotation assembly of the pot lid 50 to the rear side surface of the inner casing 20.

[0023] At least one set of microwave generators 1 is provided outside the upper fixed plate 51. The microwave generator 1 supplies microwaves into the pot 40 through at least one waveguide 2. The microwave energy emitted from the microwave generator 1 enters from one end of the waveguide 2 and is supplied into the pot 40 through the other ends of the upper fixed plate 51 and the lower fixed plate 52. A waveguide cover 3 is further provided at the other end of the waveguide 2 to prevent contamination of the microwave generation source due to the entry of water vapor, oil fumes, etc. into the waveguide 2 during cooking. The waveguide cover 3 is a microwave permeable material and is made of a food-grade material.

[0024] The microwave generator 1 may supply microwaves into the pot 40 by other waveguide structures, such as providing a waveguide on the upper fixed plate 51 and the lower fixed plate 52.

[0025] After the pot 40 containing the food ingredients rotates and is sealed with the inner lid assembly and closed, the microwave generator 1 supplies microwaves to the food ingredients in the pot 40.

[0026] By mounting the microwave generator 1 on the fixing member of the pot lid 50, supplying microwaves into the rotating pot 40, and closing the pot lid 50 and the pot 40 to form a sealed cooking chamber, the microwaves are reciprocally reflected in the sealed cooking chamber and penetrate or pass through the food ingredients, realizing rapid heating of the food ingredients. At the same time, the main control circuit can uniformly distribute the energy of the microwaves to the food ingredients by controlling the rotation of the pot 40 to move and stir-fry the food ingredients in the pot 40, and can uniformly heat the food ingredients.

[0027] When the pot 40 is separated from the pot lid 50 to perform other cooking operations (the material input device inputs food ingredients into the pot​​​​​​​​​​​​​​​Furthermore, in order to prevent microwave leakage from the closing portion between the pot lid 50 and the pot opening, a sealing structure 54 capable of preventing microwave leakage is provided in the circumferential direction of the pot lid body 53. The sealing structure 54 is preferably composed of the following structures.

[0032] 1. The sealing structure is a metal mesh, which has a ring-shaped structure, and two sides are connected to form a "V" shaped cross-section. The metal mesh is fixed in the circumferential direction of the pot lid body 53 such that the "V" shaped opening faces the central axis of the pot lid body 53. When the pot lid body 53 closes the pot 40, one side of the metal mesh abuts against the opening of the pot 40 and elastically deforms due to the pressure of the pot 40, allowing it to tightly seal against the opening of the pot 40 (the mesh hole diameter of the metal mesh satisfies the requirement that microwave leakage can be prevented).

[0033] 2. The seal structure is a seal ring having a microwave-reflecting coating.

[0034] 3. The seal structure is a structure in which a metal mesh is provided inside the seal ring.

[0035] When the pot lid body 53 closes the opening of the pot 40, the metal mesh or sealing ring elastically contacts the opening, and when the pot 40 rotates, the pot 40 rotates synchronously with the pot lid body 53 due to frictional resistance. As a result, during cooking in which the pot 40 rotates, the pot lid body 53, by the sealing structure 54, always closes the opening of the pot 40 so that microwaves inside the pot 40 do not leak from the pot lid 50 and the opening of the pot 40.

[0036] The upper and lower fixing plates 51 and 52 have openings that communicate vertically with each other, one end of the exhaust pipe 91 is connected to the opening, and the other end is connected to the oil mist inlet of the oil mist treatment device 80.

[0037] The smoke exhaust pipe 91 is provided with a shielding structure to prevent microwaves from leaking to the outside with the airflow. The shielding structure is a metal mesh (the diameter of the mesh holes in the metal mesh satisfies the requirement that microwave leakage can be prevented).

[0038] Furthermore, the pan 40 is further equipped with a fork (not shown) that can be rotated relative to the pan 40 and used to stir and sauté the ingredients while turning them over. The fork may be made of a food-grade non-metallic material or a metal material with a smooth surface. The fork is also kept covered by the ingredients at all times during cooking to prevent the accumulation of a large amount of electric charge due to microwaves from causing sparks.

[0039] By placing a fork inside the 40cm pot and stirring the ingredients while stir-frying, the ingredients can be stirred and stir-fried more evenly, further improving the heating effect of microwave heating.

[0040] A microwave leakage detection device, electrically connected to the microwave radiation alarm device of the control circuit, is provided at any position near the outside of the pot lid 50 and inside the smoke exhaust pipe 91 located behind the shielding structure. [Explanation of Symbols]

[0041] 100 Sealed room 10. Equipment casing 11 Door Panel 20 Inner casing 30 Heating device 40 Pot 50 pot lid 51 Upper fixed plate 52 Lower fixed plate 53 Pot lid body 54 Seal structure 60 Material feeding device 70 Pot lifting device 80. Pot work position control device 90 Oil mist treatment equipment 91 Smoke exhaust pipe 1. Microwave generator 2 waveguide 3 Waveguide cover

Claims

1. Includes a sealed chamber into which the pot assembly is fitted, The aforementioned pot assembly consists of a pot, a heating device for heating the pot, and a pot lid capable of closing the opening of the pot. After the pot containing the ingredients rotates and is sealed and closed with the lid above it, at least one set of microwave generators attached to the lid supplies microwaves to the ingredients in the pot. Smart stir-fry machine.

2. The microwave generator supplies microwaves into the pot via at least one waveguide. A waveguide cover is provided at the outlet of the waveguide. The smart stir-fry machine according to claim 1.

3. The pot lid is provided with a smoke exhaust pipe that discharges the smoke generated inside the pot to a smoke treatment device. The smoke exhaust pipe is provided with a shielding structure to prevent microwaves from leaking to the outside with the airflow. The smart stir-fry machine according to claim 2.

4. The aforementioned pot is further equipped with a fork that can be rotated relative to the pot, allowing for stirring and sautéing the ingredients while turning them over. The smart stir-fry machine according to claim 3.

5. A sealing structure capable of preventing microwave leakage is provided between the pot lid and the pot opening. The smart stir-fry machine according to claim 4.

6. The control circuit is further provided with a control module that cuts off the operating power to the magnetron of the microwave generator when an open signal is transmitted to the pot lid or the pot. The smart stir-fry machine according to claim 5.

7. A contact switch is provided between the pot lid and the pot opening, which cuts off the power to the control circuit that controls the microwave generator when the pot lid separates from the pot opening. The smart stir-fry machine according to claim 6.

8. A microwave leakage detection device, electrically connected to the microwave radiation alarm device of the control circuit, is provided near the outside of the pot lid and inside the smoke exhaust pipe. The smart stir-fry machine according to claim 7.

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