Ceramic heating assembly and cooking device thereof

Abstract

The utility model provides a ceramic heating assembly and a cooking device thereof, the ceramic heating assembly comprises a container body, the container body is integrally formed by a ceramic material, a glass part is arranged on the outer surface of the bottom of the container body, and an electric heating part is printed on the outer surface of the bottom surface of the glass part; a protective cover is arranged on the outermost side of the bottom face of the container body, and a heat insulation waterproof anti-cracking cavity is formed between the protective cover and the container body. The electric cooker can effectively transfer heat, is high in heat efficiency, and meanwhile avoids the problem that metal screws and glue are in contact with food due to installation. Uniform heating can be achieved, and meanwhile the problem that the temperature in the machine shell is too high due to heat storage and reverse radiation of a traditional heating pipe is solved. The heat utilization rate is improved, and meanwhile the temperature of the machine shell is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of household cooking utensils, and in particular relates to a ceramic heating component and a cooking device thereof. Background Art

[0002] At present, the heating methods commonly used for ceramic utensils are heat radiation and heat conduction. However, for some electrical appliances with special cooking requirements, due to the heating method, the efficiency is low, the energy consumption is high, and the power cannot be increased. It cannot meet the cooking requirements, especially in the electric heating Chinese medicine pot industry, it is impossible to realize the traditional decoction process of high heat fast boiling and low heat slow boiling. In order to achieve the purpose of rapid water boiling, the current practice in the industry is to use metal heating elements in direct contact with water. However, since metal heating elements will continuously produce harmful metal elements during the water boiling process, it does not meet people's desire to pursue a green and environmentally friendly life.

[0003] In the patent document with Chinese patent application number "201610170498.5" and patent name "heating ceramic kettle with infrared heating film", a fully ceramic electric kettle is disclosed, including a high temperature resistant ceramic kettle body, a heating base, a kettle controller shell, an upper power connection seat, a lower power connection seat, and a heating film that heats by converting electrical energy into far-infrared light; the outer edge of the heated bottom plate of the ceramic kettle body is fixedly connected to the heating base, the upper power connection seat is fixed in the heating base, the lower power connection seat is fixed in the kettle controller shell, the heating film is evenly sprayed on the outer surface of the heated bottom plate of the ceramic kettle body, the lower power connection seat conducts current to the heating film through the upper power connection seat, and a circle of insulation grooves is provided on the heated bottom plate of the ceramic kettle body to reduce energy loss, the insulation grooves are enclosed at the edge of the heating film, and the center position of the insulation grooves is the same as the center position of the heated bottom plate. The above application uses a heating film to save 30% energy than the existing electric heating wire heating, has no electromagnetic radiation, and is both energy-saving and healthy. However, the kettle body and the heating base of the existing patent are fixedly installed later and sealed with glue. Although the contact surface is small, the food still comes into contact with the glue, and there is a certain degree of risk in the quality stability of chemical products and long-term high-temperature cooking. In addition, ceramic utensils are prone to rupture due to the heat storage of traditional heating tubes themselves, and the reverse radiation of heat causes the temperature inside the machine shell to be too high, causing danger. Summary of the invention

[0004] In order to solve the above-mentioned problems existing in the current technology, the utility model provides a ceramic heating component and a cooking device thereof, which can effectively transfer heat and have high thermal efficiency, while avoiding the problem of metal screws and glue contacting food due to installation. While being able to heat evenly, it avoids the problem of excessive temperature inside the machine casing due to the heat storage and reverse radiation of traditional heating tubes themselves; while improving heat utilization, it effectively reduces the temperature of the machine casing.

[0005] The technical solution adopted by the utility model is:

[0006] A ceramic heating component comprises a container body, the container body is integrally formed of a ceramic material, a glass portion is arranged on the outer surface of the bottom of the container body, and an electric heating portion is printed on the outer surface of the bottom of the glass portion; a protective cover is arranged on the outermost side of the bottom surface of the container body, and a heat-insulating, waterproof and crack-proof cavity is formed between the protective cover and the container body.

[0007] Furthermore, the electric heating part is a ring structure, and an insulating coating is sprayed on its outer surface.

[0008] Furthermore, the protective cover includes a flat bottom and a side wall portion, a raised portion is provided at the center of the flat bottom portion, the raised portion is fixedly connected to the glass portion, and the side wall portion is fixedly connected to the side wall of the container body.

[0009] Furthermore, the side wall of the container body is provided with an annular rib or a boss, and the mouth step of the side wall portion cooperates with the annular rib or the boss to be sealed and fixed.

[0010] Furthermore, an annular open frame-shaped fastening ring for circumferential fixation is provided on the outer side of the connection between the mouth step of the side wall portion and the annular rib or the boss.

[0011] Furthermore, the height of the side wall portion is ≥8 mm.

[0012] Furthermore, the glass portion extends from the bottom surface of the container body to below the annular rib or the boss.

[0013] Furthermore, the ingredients of the glass part include MgO, Al2O3 and SiO2.

[0014] Furthermore, the electric heating part is provided with a positive electrode terminal and a negative electrode terminal, and the positive electrode terminal and the negative electrode terminal pass through the raised portion of the protective cover and are electrically connected to a power source.

[0015] A cooking device comprises the above-mentioned ceramic heating component, wherein the ceramic heating component is electrically connected to a base casing via a coupler.

[0016] Beneficial effects of the utility model:

[0017] 1. It can effectively transfer heat with high thermal efficiency, while avoiding the problem of metal screws and glue contacting food due to installation.

[0018] 2. It can heat evenly while avoiding the problem of excessive temperature inside the machine casing caused by the heat storage and reverse radiation of traditional heating tubes.

[0019] 3. While improving heat utilization, the temperature of the machine casing is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the electric heating part of the utility model.

[0021] Figure 2 It is a schematic diagram of the structural decomposition of the utility model.

[0022] Figure 3 for Figure 2 A magnified schematic diagram of the local structure.

[0023] Figure 4 It is a schematic diagram of the structure of the cooking device of the present invention.

[0024] In the figure: 1. container body; 101. kettle handle; 102. kettle lid; 103. kettle spout; 2. glass part; 3. electric heating part; 301. positive electrode end; 302. negative electrode end; 4. protective cover; 401. side wall part; 402. flat bottom; 403. raised part; 404. glue; 405. fastening ring; 406. heat-insulating, waterproof and crack-proof cavity; 501. coupler; 502. lower coupler; 6. base casing. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all possible alternatives, improvements and equivalents within the scope of the claims.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "multiple" is two or more, unless otherwise clearly defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] Embodiment 1

[0030] See also Figure 1-4 The present embodiment provides a ceramic heating component, including a container body 1, wherein the container body 1 is integrally formed of a ceramic material, the container body 1 is provided with a receiving cavity with an open upper end, a pot cover 102 is provided at the mouth of the receiving cavity, and the container body 1 also has a spout 103 and a pot handle 101.

[0031] In this embodiment, a glass portion 2 is provided on the outer surface of the bottom of the container body 1, and an electric heating portion 3 is printed on the outer surface of the bottom of the glass portion 2; a protective cover 4 is provided on the outermost side of the bottom surface of the container body 1, and a heat-insulating, waterproof and crack-proof cavity 406 is formed between the protective cover 4 and the container body 1.

[0032] The electric heating part 3 described in this embodiment is an annular structure, which is fixed by high-temperature sintering. After sintering, an insulating coating is sprayed on its outer surface. The electric heating part 3 is provided with a positive electrode terminal 301 and a negative electrode terminal 302, and the positive electrode terminal 301 and the negative electrode terminal 302 pass through the raised portion 403 of the protective cover and are electrically connected to the power supply. Specifically, the notch at the corresponding position of the raised portion 403 of the protective cover 4, the positive electrode terminal 301 and the negative electrode terminal 302 are respectively electrically connected to the power supply from the notch at the corresponding position, the notch is sealed with a sealant or the like or not sealed, and a guide hole is added at the corresponding position. The electric heating part 3 can be a heating film structure.

[0033] The protective cover 4 of this embodiment includes a flat bottom 402 and a side wall 401. A protrusion 403 is provided at the center of the flat bottom 402. The protrusion 403 is fixedly connected to the glass part 2, and the side wall 401 is fixedly connected to the side wall of the container body 1. The height of the side wall 401 is ≥8mm. Specifically, the protrusion 403 is in close contact with the bottom center of the glass part 2 and fixed by glue. The side wall of the container body 1 is provided with an annular rib or a boss, and the mouth step of the side wall 401 cooperates with the annular rib or the boss and is sealed and fixed by glue 404. To prevent the glue from loosening, an annular open frame-shaped fastening ring 405 for circumferential fixation is provided on the outside of the connection between the mouth step of the side wall 401 and the annular rib or the boss. The fastening ring 405 is closed at the pot handle 101, and the joint is hidden on the inner side of the pot handle 101, which fixes the protective cover 4 and makes the machine more beautiful.

[0034] The glass part 2 of this embodiment extends from the bottom surface of the container body 1 to the bottom of the annular rib or the boss and is fixed by high temperature sintering. The ingredients of the glass part 2 include MgO, Al2O3 and SiO2.

[0035] The electric heating part 3 of the utility model is directly printed on the container body 1. The container body 1 directly contacts the food as a heating component, which can effectively transfer heat and avoid the problem of metal screws and glue contacting the food due to installation. At the same time, because the electric heating part 3 is a printed heating film, it can heat evenly while avoiding the problem of excessive temperature inside the machine casing due to the heat storage and reverse radiation of the traditional heating tube itself. Using the container body 1 as a heating component has a large contact area with the food, high thermal efficiency, and low temperature inside the machine.

[0036] The container body 1 is mostly an insulating ceramic container. Ordinary ceramic containers are air permeable and slightly water permeable. As a heating body, the container body 1 has the problem of water seeping into the electric heating film, resulting in a decrease in insulation. In the utility model, a glass part 2 is newly arranged between the container body 1 and the electric heating part 3. The glass part 2 seals the air permeability of the container body 1 to prevent water from seeping out and enhance the insulation.

[0037] In addition, the ceramic container itself has poor heat resistance. During the cooking process, the bottom of the container is in contact with the heating plate with uneven heating for a long time, and there is a problem of bottom falling due to thermal expansion and contraction (that is, the bottom closed end of the container body falls off). The utility model is provided with a protective cover 4 and a container body 1 fixedly connected, the bottom of the protective cover 4 is partially fixed to the bottom plane of the container body 1, and the side wall is circumferentially fixed to the side wall of the container body 1. The problem of ceramic container bottom falling and bursting can be solved at the same time, and a cavity is formed between the protective cover 4 and the container body 1 as an air insulation layer, which improves the heat utilization while effectively reducing the temperature of the machine shell, saving the use of insulation materials (insulation cotton and mica board), and the product structure is more compact and the cost is lower.

[0038] Embodiment 2

[0039] See also Figure 4 , this embodiment provides a cooking device, including the ceramic heating component described in the first embodiment, and the ceramic heating component is electrically connected to the base casing 6 through a coupler. The coupler includes an upper coupler 501 and a lower coupler 502, the upper coupler 501 is installed in the raised portion 403 of the protective cover 4, and is electrically connected to the positive electrode terminal 301 and the negative electrode terminal 302 through two contacts passing through the notches at the corresponding positions of the raised portion 403 of the protective cover; a shell is provided at the bottom of the ceramic heating component, and the shell is fixed to the upper coupler 501 by screws or the like. The lower coupler 502 is arranged on the base casing 6. The whole machine electric heating part 3 and the base casing 6 are electrically connected through the coupler, and the base casing 6 provides power to the ceramic heating component, and is controlled by the switch and control panel arranged in the base casing 6.

[0040] The structure and function of the ceramic heating component can refer to the description of the first embodiment.

Claims

1. A ceramic heating assembly, comprising a container body, wherein the container body is integrally formed of a ceramic material, and is characterized in that: A glass portion is provided on the outer surface of the bottom of the container body, and an electric heating portion is printed on the outer surface of the bottom of the glass portion; a protective cover is provided on the outermost side of the bottom surface of the container body, and a heat-insulating, waterproof and crack-proof cavity is formed between the protective cover and the container body.

2. A ceramic heating assembly according to claim 1, characterized in that: The electric heating part is an annular structure, and an insulating coating is sprayed on the outer surface thereof.

3. A ceramic heating assembly according to claim 2, characterized in that: The protective cover comprises a flat bottom and a side wall portion, a convex portion is provided at the center of the flat bottom portion, the convex portion is fixedly connected to the glass portion, and the side wall portion is fixedly connected to the side wall of the container body.

4. A ceramic heating assembly according to claim 3, characterized in that: The height of the side wall portion is ≥8 mm.

5. A ceramic heating assembly according to claim 3, characterized in that: The side wall of the container body is provided with an annular rib or a boss, and the mouth step of the side wall portion cooperates with the annular rib or the boss to be sealed and fixed.

6. A ceramic heating assembly according to claim 5, characterized in that: An annular open frame-shaped fastening ring for circumferential fixation is arranged on the outer side of the connection between the mouth step of the side wall portion and the annular rib or the boss.

7. A ceramic heating assembly according to claim 5, characterized in that: The glass portion extends from the bottom surface of the container body to below the annular rib or the boss.

8. A ceramic heating assembly according to claim 1, characterized in that: The electric heating part is provided with a positive electrode terminal and a negative electrode terminal, and the positive electrode terminal and the negative electrode terminal are passed through the raised part of the protective cover and are electrically connected to the power supply.

9. A cooking device, characterized in that: It comprises the ceramic heating component according to any one of claims 1 to 8, wherein the ceramic heating component is electrically connected to the base casing via a coupler.

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