Electromagnetic heating three-layer composite roller cooker

Abstract

The utility model discloses an electromagnetic heating three-layer composite roller cooker. The device at least comprises three layers of composite roller pots, the three-layer composite roller pot is composed of an inner pot, a middle heat conduction layer and an outer heating layer which are tightly compounded together, and the middle heat conduction layer is made of a high heat conduction material; and the thickness of the middle heat conduction layer is more than 2mm. Heat generated by the outer heating layer is conducted to the inner pot through the middle heat conduction layer to heat food, when the pot is stuck, due to the fact that the middle heat conduction layer is made of high-heat-conduction materials, heat near sticking points can be conducted and dissipated easily and rapidly, the temperature near the sticking points is not increased any more, and the pot is prevented from being stuck. Therefore, the method has a wide application prospect.

Description

Technical Field

[0001] The utility model relates to an electromagnetic heating three - layer composite drum cooking machine, which is used for stir - frying foods, agricultural products and other materials. Background Art

[0002] At present, for the electromagnetic heating drum cooking machine, the drum frying pan is of a single - layer structure, and the material of the drum frying pan is 430 stainless steel or carbon steel. During the cooking process, when the food ingredients stick to the inner wall of the drum, a thermal resistance is formed. Since the thermal conductivity of 430 stainless steel and carbon steel is not high, the heat dissipates slowly to the surrounding area, and the temperature of the sticking point becomes higher and higher. Finally, it carbonizes, turns black and burns the pan, forming hard lumps firmly attached to the pan, which are difficult to remove and also affect the quality of the dishes. Content of the Utility Model

[0003] To overcome the above - mentioned defects, the purpose of the utility model is to provide a new type of electromagnetic heating three - layer composite drum cooking machine.

[0004] To achieve the above - mentioned purpose, the electromagnetic heating three - layer composite drum cooking machine of the utility model at least includes a three - layer composite drum pan;

[0005] The three - layer composite drum pan is composed of an inner pan, an intermediate heat - conducting layer and an outer heating layer which are tightly combined together. The intermediate heat - conducting layer is made of a high - thermal - conductivity material; the thickness of the intermediate heat - conducting layer is more than 2 millimeters.

[0006] Further, a heat - insulating layer is arranged outside the three - layer composite drum pan.

[0007] Further, an electromagnetic heating coil is arranged below the three - layer composite drum pan.

[0008] Further, stirring blades are arranged inside the three - layer composite drum pan.

[0009] Further, the intermediate heat - conducting layer is made of aluminum or aluminum alloy.

[0010] Further, the intermediate heat - conducting layer is made of copper or copper alloy.

[0011] Further, the middle part of the three - layer composite drum pan is a cylinder with a larger diameter, and both ends gradually taper.

[0012] Further, the longitudinal barrel wall of the three - layer composite drum pan is arc - shaped, with a larger diameter in the middle and gradually decreasing diameters at both ends, similar to an olive shape.

[0013] Further, the bottom of the three - layer composite drum pan is hemispherical.

[0014] Further, the stirring blades are L - shaped and arranged on a stirring shaft; the stirring shaft passes through the center of the rotating shaft of the hollow three - layer composite drum pan.

[0015] The heat generated by the outer heating layer of the utility model is conducted by the intermediate heat-conducting layer to the inner pot to heat food. When sticking occurs, since the intermediate heat-conducting layer is made of a high heat-conducting material, it is easy to quickly conduct and dissipate the heat near the sticking point, so that the temperature near the sticking point no longer increases and the occurrence of pot burning is avoided. Therefore, it has broad application prospects. Description of the Drawings

[0016] Figure 1 Shown is a longitudinal sectional view of an electromagnetic heating three-layer composite drum cooking machine according to Embodiment 1.

[0017] Figure 2 Shown is an A-A sectional view of an electromagnetic heating three-layer composite drum cooking machine according to Embodiment 1.

[0018] Figure 3 Shown is a partially enlarged sectional view of the wall of a three-layer composite drum pot.

[0019] Figure 4 Shown is a longitudinal sectional view of an electromagnetic heating three-layer composite drum cooking machine with a larger-diameter cylinder in the middle and conical contractions at both ends according to Embodiment 2.

[0020] Figure 5 Shown is a longitudinal sectional view of an electromagnetic heating olive-shaped three-layer composite drum cooking machine according to Embodiment 3.

[0021] Figure 6 is Figure 1 A schematic diagram of using an end-enhanced electromagnetic heating coil in the shown embodiment.

[0022] Figure 7 is Figure 6 A schematic diagram of an end-enhanced electromagnetic heating coil in the shown embodiment.

[0023] Figure 8 is Figure 7 A schematic diagram of the deformed end-enhanced electromagnetic heating coil in the shown embodiment.

[0024] Figure 9 A cooking machine with a hemispherical bottom for an electromagnetic heating three-layer composite drum pot according to Embodiment 5.

[0025] Wherein: 1 - stirring blade, 2 - heat insulation, 3 - inner pot, 4 - intermediate heat conduction layer, 5 - outer heating layer, 6 - turnover frame housing, 7 - turnover frame bottom plate, 8 - drum rotation motor and reducer assembly, 9 - drum driving gear, 10 - drum bearing assembly, 11 - drum rotation shaft, 12 - drum driven gear, 13 - stirring shaft driven gear, 14 - stirring shaft, 15 - stirring shaft driving gear, 16 - stirring rotation motor and reducer assembly, 17 - electromagnetic heating coil, 18 - cooling fan, 19 - air inlet filter screen, 20 - coil holder, 21 - coil holder support column, 22 - gap, 23 - drum support wheel, 24 - left turnover shaft bearing sleeve, 25 - left turnover shaft bearing, 26 - left turnover shaft, 27 - left turnover shaft bearing seat, 28 - left turnover shaft support frame, 29 - left equipment box, 30 - right turnover shaft bearing sleeve, 31 - right turnover shaft bearing, 32 - right turnover shaft, 33 - right turnover shaft bearing seat, 34 - right turnover shaft driven gear, 35 - right turnover shaft driving gear, 36 - right equipment box, 37 - turnover motor and reducer assembly, 38 - electromagnetic heating power supply, 39 - right turnover shaft support frame. Detailed implementation manners

[0026] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] The utility model provides an electromagnetic heating three-layer composite drum cooking machine. The drum frying pan is composed of three layers of materials closely combined together. The inner layer is a material that can directly contact food, such as 304 stainless steel, etc. The middle layer is a high thermal conductivity material, such as aluminum, copper, etc. The outer layer is a material suitable for electromagnetic heating, such as carbon steel, etc. When the food adheres to the cylinder wall, the thermal resistance increases. Since the thermal conductivity coefficient of aluminum is very high (the thermal conductivity coefficient of aluminum is 13 times that of 304 stainless steel, 8 times that of 430 stainless steel, and 5 times that of carbon steel), the heat near the adhesion point is quickly dissipated by the aluminum layer, and the temperature no longer rises, thus achieving the purpose of avoiding sticking to the pan. In order to better achieve the purpose of rapid heat dissipation, the thickness of the middle layer should be more than 2 mm, such as 3, 4, 5, 6, 8, 10 mm, etc. The specific thickness can be designed according to the diameter of the cylinder body and the thickness of the inner pot and the outer heating layer, etc.

[0031] Embodiment 1

[0032] As Figure 1 、 Figure 2 and Figure 3 shown, an electromagnetic heating three-layer composite drum cooking machine according to an embodiment of the utility model includes a stirring blade 1, a heat preservation 2, an inner pot 3, a middle heat conduction layer 4, an outer heating layer 5, a turnover frame housing 6, a turnover frame bottom plate 7, a drum rotation motor and a reducer assembly 8, a drum driving gear 9, a drum bearing assembly 10, a drum rotation shaft 11, a drum driven gear 12, a stirring shaft driven gear 13, a stirring shaft 14, a stirring shaft driving gear 15, a stirring rotation motor and a reducer assembly 16, an electromagnetic heating coil 17, a heat dissipation fan 18, an air inlet filter screen 19, a coil frame 20, a coil frame support column 21, a gap 22, a drum support wheel 23, a left turnover shaft bearing sleeve 24, a left turnover shaft bearing 25, a left turnover shaft 26, a left turnover shaft bearing seat 27, a left turnover shaft support frame 28, a left equipment box 29, a right turnover shaft bearing sleeve 30, a right turnover shaft bearing 31, a right turnover shaft 32, a right turnover shaft bearing seat 33, a right turnover shaft driven gear 34, a right turnover shaft driving gear 35, a right equipment box 36, a turnover motor and a reducer assembly 37, an electromagnetic heating power supply 38, a right turnover shaft support frame 39, a limiting member for the turnover of the turnover frame housing 6, a temperature measuring system, a control system and a housing.

[0033] The inner pot 3, the middle heat conduction layer 4, and the outer heating layer 5 are tightly compounded together to form a three-layer composite drum pot; the inner pot 3 is made of stainless steel, the middle heat conduction layer 4 is made of aluminum, and the outer heating layer 5 is made of carbon steel. A heat insulation layer 2 is installed outside the three-layer composite drum pot. The turnover frame housing 6 and the turnover frame bottom plate 7 form a turnover frame. The turnover frame housing 6 is arranged on the turnover frame bottom plate 7. The drum rotation motor and reducer assembly 8, the drum bearing assembly 10, and the stirring rotation motor and reducer assembly 16 are arranged on the turnover frame bottom plate 7; the left turnover shaft 26 and the right turnover shaft 32 are arranged on both sides of the turnover frame housing 6, and their axes are coaxial. The turnover motor and reducer assembly 37 drives the turnover frame housing 6 and the turnover frame bottom plate 7 to perform forward and backward turnover movements (up to 180 degrees forward and backward) through the right turnover shaft driving gear 35 and the right turnover shaft driven gear 34. The electromagnetic heating coil 17 and the cooling fan 18 are arranged on the turnover frame housing 6 through the coil frame 20 and the coil frame support column 21. A gap 22 is provided between the electromagnetic heating coil 17 and the three-layer composite drum pot; a drum rotation shaft 11 is arranged at the bottom of the three-layer composite drum pot. The drum rotation shaft 11 is arranged on the turnover frame bottom plate 7 through the drum bearing assembly 10. The drum support wheel 23 is arranged at the front end of the turnover frame housing 6 to support the mouth end of the composite drum pot; the drum rotation motor and reducer assembly 8 drives the three-layer composite drum pot to perform a rotation movement through the drum driving gear 9, the drum driven gear 12, and the drum rotation shaft 11. The stirring blade 1 is arranged on the stirring shaft 14. The drum rotation shaft 11 is a hollow shaft, and the stirring shaft 14 passes through the center of the drum rotation shaft 11. The stirring rotation motor and reducer assembly 16 drives the stirring blade 1 to perform a rotation movement through the stirring shaft driving gear 15, the stirring shaft driven gear 13, and the stirring shaft 14.

[0034] Preferably, a temperature sensor is installed on the three-layer composite drum pot body, and a slip ring is installed on the drum rotation shaft 11 to lead out the temperature signal to control the drum temperature.

[0035] The working principle of the electromagnetic heating three-layer composite drum stir-frying machine according to the embodiment of the present invention is as follows:

[0036] When the high-frequency current generated by the electromagnetic heating power supply 38 flows through the electromagnetic heating coil 17, eddy currents are induced in the outer heating layer 5 of the three-layer composite drum pot. The eddy currents cause the outer heating layer 5 to generate heat, and the generated heat is conducted by the middle heat conduction layer 4 of the three-layer composite drum pot to the inner pot 3 of the three-layer composite drum pot to heat the food; when food adheres to the inner pot 3, due to the large heat conduction coefficient of the middle heat conduction layer 4, the heat near the adhesion point is quickly conducted and dissipated, and the temperature near the adhesion point no longer increases, which can avoid burning the pot.

[0037] Start the stirring rotation motor and reducer assembly 16, and the stirring blade 1 performs a rotation movement to prevent the food from forming lumps.

[0038] Start the flipping motor and the reducer assembly 37. The three-layer composite drum pot rotates under the drive of the drum rotating shaft 11, causing the food to be stir-fried. The front drum support wheel 23 supports the mouth of the three-layer composite drum pot.

[0039] The control system controls the heating power as needed.

[0040] During frying, the control system controls the flipping motor and the reducer assembly 37 to flip the flipping frame housing 6 and the flipping frame bottom plate 7 backward by a certain angle, so that the mouth of the three-layer composite drum pot tilts upward. Then, start the electromagnetic heating power supply for heating. After frying is completed, the control system controls the flipping motor and the reducer assembly 37 to flip the flipping frame housing 6 and the flipping frame bottom plate 7 forward by a certain angle, so that the mouth of the three-layer composite drum pot tilts downward for discharging.

[0041] The cooling fan 18 dissipates heat from the electromagnetic heating coil 17.

[0042] The limiting parts for the flipping of the flipping frame housing 6 limit the forward and backward flipping angles to avoid damaging the wires connected to it.

[0043] Embodiment 2

[0044] Figure 4 This is another embodiment of the present invention. Different from Embodiment 1, the middle of the three-layer composite drum pot is a cylinder with a larger diameter, and both ends are tapered and gradually shrinking. During frying, the materials are concentrated in the middle, the firepower is concentrated, which is conducive to quick frying. At the same time, the surface area of the inner cylinder is reduced. After washing the pot, less water adheres, and the stir-frying starts quickly. During the frying process, less oil splashes out.

[0045] The middle of the drum pot has a large diameter and the diameters gradually decrease towards both ends. The materials stay in the middle for frying. Since the electromagnetic heating coil is made by winding the wire back and forth, it passes through the middle twice and only passes through both sides once. Obviously, the power density in the middle is large and the power density on both sides is small. This power distribution is especially suitable for Chinese stir-frying. Therefore, when the materials are fried in the middle of the drum pot, the firepower is concentrated and the effect is better.

[0046] Embodiment 3

[0047] Figure 5 This is another embodiment of the present invention. Different from Embodiments 1 and 2, the longitudinal cylinder wall of the three-layer composite drum pot is arc-shaped, with a large middle diameter and gradually decreasing diameters towards both ends, similar to an olive shape. During frying, the materials are concentrated in the middle, the firepower is concentrated, which is conducive to quick frying. At the same time, the surface area of the inner cylinder is reduced. After washing the pot, less water adheres, and the stir-frying starts quickly. During the frying process, less oil splashes out.

[0048] The middle part of the roller pot has a larger diameter, and the diameters at both ends gradually decrease. The material stays in the middle part for frying. Since the electromagnetic heating coil is formed by winding the wire back and forth, it passes through the middle part twice and only passes through both sides once. Obviously, the power density in the middle part is large, and the power density on both sides is small. This power distribution is particularly suitable for stir-frying Chinese cuisine. Therefore, when the material is fried in the middle part of the roller pot, the fire is concentrated and the effect is better.

[0049] Embodiment 4

[0050] As an improvement of the above embodiment, as Figure 6 (the dotted part) and Figure 7 shown, the electromagnetic heating coil adopts the H-shaped electromagnetic heating coil as Figure 7 shown. The enhanced part at the left end of the coil heats one end (the feeding end) of the roller, the enhanced part at the right end of the coil heats the other end (the bottom end of the cylinder) of the roller, and the middle part of the coil heats the middle part of the roller. Since the unit area of the coil at the enhanced parts at the left and right ends of the coil is larger than the unit area of the middle part of the coil, the proportion of the unit power at both ends is greater than that in the middle. During frying, since the stacking thickness of the material at the ends is high and the heat dissipation loss at the ends is large, the unit power requirement at the ends is greater than that in the middle. After compensation, the unit heating power at the ends and in the middle is balanced, the temperature distribution of the roller is uniform, and the frying effect is greatly improved.

[0051] As a variation of the above embodiment, as Figure 8 shown, the electromagnetic heating coil adopts the T-shaped electromagnetic heating coil as Figure 8 shown. That is, it is the developed view of the electromagnetic heating coil with enhanced type at only one end. In this embodiment, only one end needs to be strengthened, so only one end is square.

[0052] Embodiment 5

[0053] As an improvement of the above embodiment, as Figure 9 shown, the bottom of the three-layer composite roller pot is hemispherical, and the heating coil is arranged on one side of the spherical bottom in an eccentric manner.

[0054] In the description of this specification, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0055] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. An electromagnetic heating three-layer composite drum cooking machine, characterized in that: At least three layers of composite drum pot; The three-layer composite drum pot is composed of an inner pot, a middle heat-conducting layer and an outer heating layer which are tightly combined together. The middle heat-conducting layer is made of a high heat-conducting material; the thickness of the middle heat-conducting layer is more than 2 mm.

2. The electromagnetic heating three-layer composite drum cooking machine according to claim 1, characterized in that: A heat-insulating layer is arranged outside the three-layer composite drum pot.

3. The electromagnetic heating three-layer composite drum cooking machine according to claim 1, characterized in that: An electromagnetic heating coil is arranged under the three-layer composite drum pot.

4. The electromagnetic heating three-layer composite drum cooking machine according to claim 1, characterized in that: A stirring blade is arranged in the three-layer composite drum pot.

5. The electromagnetic heating three-layer composite drum cooking machine according to claim 1, characterized in that: The intermediate heat-conducting layer is made of aluminum or aluminum alloy.

6. The electromagnetic heating three-layer composite drum cooking machine according to claim 1, characterized in that: The intermediate heat-conducting layer is made of copper or copper alloy.

7. The electromagnetic heating three-layer composite drum cooking machine according to claim 1, characterized in that: The three-layer composite drum pot is a cylinder with a larger diameter in the middle along the axial direction, and the two ends are tapered and gradually shrink.

8. The electromagnetic heating three-layer composite drum cooking machine according to claim 1, characterized in that: The longitudinal wall of the three-layer composite drum pot is arc-shaped, with a large diameter in the middle along the axial direction and gradually decreasing diameters at both ends, similar to an olive shape.

9. The electromagnetic heating three-layer composite drum cooking machine according to claim 1, characterized in that: The bottom of the three-layer composite drum pot is hemispherical.

10. The electromagnetic heating three-layer composite drum cooking machine according to claim 4, characterized in that: The stirring blade is L-shaped and is arranged on a stirring shaft; the stirring shaft passes through the center of the rotating shaft of the hollow three-layer composite drum pot.

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