Cooking equipment

Abstract

The utility model relates to the technical field of household appliances, and discloses a cooking device which comprises an inner container, a cooking cavity, a heating device and a heating device. The microwave generating device is arranged on the inner container and used for emitting microwaves to the cooking cavity; the graphene heating pipe is located in the cooking cavity, and the two ends of the graphene heating pipe penetrate through the mounting holes to be mounted on the inner container; the shielding sleeve ring is spirally wound on the outer surface of the graphene heating pipe, the two ends of the shielding sleeve ring extend to the two ends of the graphene heating pipe, the shielding sleeve ring is located on the outer side of the inner wall face of the inner container or located on the inner side of the inner wall face of the inner container, and the distance between the shielding sleeve ring and the inner wall face of the inner container is smaller than 5 mm. According to the cooking equipment, the shielding sleeve ring is spirally wound on the outer surface of the graphene heating pipe, the shielding sleeve ring is a metal piece, microwaves can be shielded, the situation that the microwaves penetrate through the graphene heating pipe and leak to the outside of the equipment along the inner space of the graphene heating pipe is avoided, and the operation safety of the cooking equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a cooking device. Background Art

[0002] The application of graphene heating technology in oven equipment is gradually emerging in the current market, especially in high-end multi-functional kitchen appliances. Graphene heating tubes have excellent heating efficiency and strong thermal penetration, and have faster heating performance than traditional metal or carbon fiber heating tubes, so they have attracted much attention in the oven manufacturing industry.

[0003] One structural form of graphene heating tubes currently on the market is: including a quartz outer tube, a quartz inner tube and an electrode wire. The graphene material is attached to the outer surface of the quartz inner tube by silk screen printing, and then the inner tube is placed in the outer tube. In this structure, the electrode wire surrounds the quartz inner tube in the shape of a spiral spring, and leads to wiring from both ends to ensure power supply and fix the inner tube. However, this design may pose a safety hazard when used in products with integrated microwave functions, such as microwave ovens, microwave ovens, etc. - microwaves may leak out through the end face of the inner tube and the gap between the inner and outer tubes, causing microwave leakage problems. Utility Model Content

[0004] Based on the problem of microwave leakage of graphene heating tubes in cooking devices with microwave function in the prior art, the utility model provides a cooking device, in which a metal part is spirally wound on the outer surface of the graphene heating tube to form a shielding ring, which can prevent microwaves from leaking to the external environment along the internal space of the graphene heating tube.

[0005] The utility model provides a cooking device, comprising:

[0006] An inner pot has a cooking cavity and a mounting hole is provided on the inner pot;

[0007] A microwave generating device, disposed on the inner pot, for emitting microwaves into the cooking cavity;

[0008] A graphene heating tube is located in the cooking cavity, and two ends of the graphene heating tube pass through the mounting holes and are mounted on the inner pot;

[0009] The shielding ring is spirally wound on the outer surface of the graphene heating tube, and the two ends of the shielding ring extend to the two ends of the graphene heating tube, and is located on the outside of the inner wall of the inner tank or on the inside of the inner wall of the inner tank and the distance from the inner wall of the inner tank is less than 5mm.

[0010] In some embodiments, the distance between two adjacent turns of the shielding ring is less than or equal to 5 mm.

[0011] In some embodiments, the shielding ring is located outside the inner wall of the inner tank, and the gap between the outer peripheral surface of the shielding ring and the hole wall of the mounting hole is less than or equal to 5 mm.

[0012] In some embodiments, a fixing member is also included, and the graphene heating tube is fixed in the mounting hole through the fixing member.

[0013] In some embodiments, the fixing member is an elastic rubber sleeve, which is disposed between the graphene heating tube and the wall of the mounting hole and fits tightly with the outer surface of the graphene heating tube and the wall of the mounting hole.

[0014] In some embodiments, the mounting hole has a flange bent toward the outside of the inner liner, the outer periphery of the elastic rubber sleeve has an annular groove portion, and the flange is embedded in the groove portion.

[0015] In some embodiments, the cross-sectional shape of the shielding ring is circular, elliptical or sheet-shaped.

[0016] In some embodiments, the graphene heating tube comprises:

[0017] External pipe;

[0018] An inner tube is sleeved inside the outer tube, and a graphene layer is provided on the outer surface of the inner tube;

[0019] Electrodes, connected to both ends of the inner tube and electrically connected to the graphene layer;

[0020] Insulating heads are fixed to both ends of the outer tube.

[0021] In some embodiments, the graphene heating tube comprises:

[0022] A tube body, wherein the inner surface of the tube body is provided with a graphene layer;

[0023] Electrodes, connected to both ends of the tube body and electrically connected to the graphene layer;

[0024] Insulating heads are fixed at two ends of the tube body.

[0025] In some embodiments, the graphene heating tube comprises:

[0026] A tube body, wherein a graphene heating element is arranged inside the tube body;

[0027] Electrodes, connected to both ends of the tube body and electrically connected to the graphene heating element;

[0028] Insulating heads are fixed at two ends of the tube body.

[0029] Compared with the prior art, the advantages and positive effects of the utility model are:

[0030] In the above cooking device, the outer surface of the graphene heating tube is spirally wound with a shielding ring, which is a metal part that can shield microwaves and prevent microwaves from passing through the graphene heating tube and leaking to the outside of the device along the internal space of the graphene heating tube, thereby improving the operating safety of the cooking device; the shielding ring has a simple structure and is fixed to the graphene heating tube by spiral winding, and is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 This is a schematic diagram of the assembly structure of the inner pot and the graphene heating tube in the cooking device of the utility model;

[0033] Figure 2 for Figure 1 Exploded diagram of

[0034] Figure 3 for Figure 1 sectional view of;

[0035] Figure 4 for Figure 3 The enlarged image at point I in the middle;

[0036] Figure 5 It is a structural schematic diagram of the installation parts in the cooking device of the utility model;

[0037] Description of reference numerals:

[0038] Inner liner 100; mounting hole 110; flange 111;

[0039] Graphene heating tube 200; outer tube 210; inner tube 220; electrode 230;

[0040] Shielding ferrule 300;

[0041] Fixing member 400; groove portion 410. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0044] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0046] Reference Figure 1-Figure 5 , which is an embodiment of the cooking device of the present utility model.

[0047] The cooking device includes an inner pot 100 , a microwave generating device disposed on the inner pot 100 , and at least one graphene heating tube 200 disposed in the inner pot 100 .

[0048] The inner pot 100 has a cooking cavity, and food is placed in the cooking cavity for heating.

[0049] A microwave generator (not shown) is disposed on the inner pot 100 and emits microwaves into the cooking cavity. The microwaves penetrate the food, causing the moisture and some other polar substances in the food to move and generate heat by friction, thereby heating the food.

[0050] The graphene heating tube 200 is arranged in the cooking cavity. The graphene heating tube 200 generates heat when powered on, and transfers the heat to the food through heat conduction and radiation to heat the food.

[0051] The graphene heating tube 200 is sleeved with a shielding ring 300. The shielding ring 300 is made of metal material.

[0052] The shielding ring 300 is spirally wound on the outer surface of the graphene heating tube 200, and the two ends of the shielding ring 300 extend to the two ends of the graphene heating tube and are located on the outside of the inner wall of the inner liner 100, that is, the two ends of the shielding ring 300 extend into the mounting hole 110 of the inner liner 100 or extend out of the mounting hole 110 of the inner liner 100.

[0053] Since the shielding ring 300 is made of metal material, it can be ensured that microwaves will not pass through the shielding ring 300 and enter the interior of the graphene heating tube 200. At the same time, the two ends of the shielding ring 300 extend to or extend out of the mounting hole 110 of the inner pot 100, and can completely wrap the part of the graphene heating tube 200 located in the cooking cavity, ensuring that microwaves will not leak out from the installation position of the graphene heating tube 200.

[0054] In another embodiment, the two ends of the shielding collar 300 are located inside the inner wall of the inner container 100 and the distance from the inner wall of the inner container 100 is less than 5 mm. Since the distance between the two ends of the shielding collar 300 and the inner wall of the inner container 100 is less than 5 mm, it can be ensured that microwaves will not leak out from the gap between the end of the shielding collar 300 and the inner wall of the inner container 100.

[0055] In the above-mentioned cooking device, the outer surface of the graphene heating tube 200 is spirally wound with a shielding ring 300. The shielding ring 300 is a metal part that can shield microwaves and prevent microwaves from passing through the graphene heating tube 200 and leaking to the outside of the device along the internal space of the graphene heating tube 200, thereby improving the operating safety of the cooking device. The shielding ring has a simple structure and is fixed to the graphene heating tube by spiral winding, so it is easy to assemble.

[0056] In order to prevent the microwaves in the cooking cavity from entering the inner space of the graphene heating tube 200, the distance L between two adjacent circles of the shielding ring 300 should be less than or equal to 5 mm.

[0057] Furthermore, when the shielding ring 300 is located on the inner wall of the liner 100 , the gap between the outer peripheral surface of the shielding ring 300 and the hole wall of the mounting hole 110 should be less than or equal to 5 mm to prevent microwaves from leaking out from the gap between the mounting hole 110 and the shielding ring 300 .

[0058] In this embodiment, the cross-sectional shape of the shielding ring 300 may be circular, elliptical or sheet-shaped. Preferably, the cross-sectional shape of the shielding ring 300 is circular, which is convenient for processing and manufacturing and for spiral winding.

[0059] As shown in the figure, the cooking device is further provided with a fixing member 400 , and the graphene heating tube 200 is fixed in the mounting hole 110 of the inner pot 100 through the fixing member 400 .

[0060] Specifically, the fixing member 400 is an elastic rubber sleeve, which is made of a plastic elastomer and can be deformed appropriately when subjected to compression or assembly force. The elastic rubber sleeve is sleeved on the graphene heating tube 200, and is tightly matched with the outer surface of the graphene heating tube 200 and the hole wall of the mounting hole 110, so that the graphene heating tube 200 is fixed in the mounting hole 110. The elastic rubber sleeve can be made of high-temperature resistant silicone to prevent the high temperature of the graphene heating tube 200 from affecting its performance and service life.

[0061] The mounting hole 110 has a flange 111 bent toward the outside of the inner liner 100 , and the outer periphery of the elastic rubber sleeve has an annular groove portion 410 , and the flange 111 is embedded in the groove portion 410 .

[0062] The inner diameter of the elastic rubber sleeve is slightly smaller than the outer diameter of the graphene heating tube 200 in a natural state, and the elastic rubber sleeve can be sleeved and fixed on the graphene heating tube 200. Then the elastic rubber sleeve can be inserted into the flange 111 to fix the graphene heating tube 200. Alternatively, the elastic rubber sleeve can be inserted into the flange 111 first, and then the graphene heating tube 200 is inserted into the elastic rubber sleeve for fixing.

[0063] The graphene heating tube 200 in this embodiment includes an outer tube 210, an inner tube 220 sleeved in the outer tube 210, electrodes 230 connected to both ends of the inner tube 220, and insulating heads fixed to both ends of the outer tube 210. The outer surface of the inner tube 220 is provided with a graphene layer.

[0064] The outer tube 210 and the inner tube 220 are usually made of materials with high temperature resistance and good insulation performance, such as quartz tube. The quartz tube has high heat resistance, chemical stability and good dielectric properties, and is suitable as a carrier of the graphene heating element.

[0065] The electrodes 230 are disposed at both ends of the inner tube 220 and are generally made of highly conductive materials, such as copper, nickel, platinum, etc., to ensure that an external power source can be efficiently connected to the graphene layer in the graphene heating tube 200 to provide current to generate heat through the graphene coating. The electrodes 230 in this embodiment are electrode wire structures, and the electrode wires are wound around both ends of the inner tube 220.

[0066] In order to avoid the risk of short circuit and electric shock, an insulating head (not shown) such as ceramic, glass, Teflon, etc. is provided between the electrode 230 and the non-conductive part of the graphene heating tube to ensure electrical safety.

[0067] In another embodiment, the graphene heating tube 200 includes a tube body, electrodes connected to both ends of the tube body, and insulating heads fixed to both ends of the tube body. The inner surface of the tube body is provided with a graphene layer. The electrodes are electrically connected to the graphene layer.

[0068] In another embodiment, the graphene heating tube 200 includes a tube body, electrodes connected to both ends of the tube body, and insulating heads fixed to both ends of the tube body. A graphene heating element is arranged in the tube body. The electrodes are connected to the graphene layer heating element. The graphene heating element may be in a sheet-like structure.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A cooking device, characterized in that: include: An inner pot has a cooking cavity and a mounting hole is provided on the inner pot; A microwave generating device, disposed on the inner pot, for emitting microwaves into the cooking cavity; A graphene heating tube is located in the cooking cavity, and two ends of the graphene heating tube pass through the mounting holes and are mounted on the inner pot; The shielding ring is spirally wound on the outer surface of the graphene heating tube, and the two ends of the shielding ring extend to the two ends of the graphene heating tube, and is located on the outside of the inner wall of the inner tank or on the inside of the inner wall of the inner tank and the distance from the inner wall of the inner tank is less than 5mm.

2. The cooking device according to claim 1, characterized in that: The distance between two adjacent circles of the shielding ring is less than or equal to 5 mm.

3. The cooking device according to claim 1, characterized in that: The shielding ring is located outside the inner wall of the inner tank, and the gap between the outer peripheral surface of the shielding ring and the hole wall of the mounting hole is less than or equal to 5 mm.

4. The cooking device according to claim 1, characterized in that: It also includes a fixing piece, and the graphene heating tube is fixed in the mounting hole through the fixing piece.

5. The cooking device according to claim 4, characterized in that: The fixing member is an elastic rubber sleeve, which is arranged between the graphene heating tube and the hole wall of the mounting hole, and is tightly matched with the outer surface of the graphene heating tube and the hole wall of the mounting hole.

6. The cooking device according to claim 5, characterized in that The mounting hole has a flange bent toward the outside of the inner liner, the outer periphery of the elastic rubber sleeve has an annular groove portion, and the flange is embedded in the groove portion.

7. The cooking device according to claim 1, characterized in that The cross-sectional shape of the shielding ring is circular, elliptical or sheet-shaped.

8. The cooking device according to any one of claims 1 to 7, characterized in that: The graphene heating tube comprises: External pipe; An inner tube is sleeved inside the outer tube, and a graphene layer is provided on the outer surface of the inner tube; Electrodes, connected to both ends of the inner tube and electrically connected to the graphene layer; Insulating heads are fixed to both ends of the outer tube.

9. The cooking device according to any one of claims 1 to 7, characterized in that: The graphene heating tube comprises: A tube body, wherein the inner surface of the tube body is provided with a graphene layer; Electrodes, connected to both ends of the tube body and electrically connected to the graphene layer; Insulating heads are fixed at both ends of the tube body.

10. The cooking device according to any one of claims 1 to 7, characterized in that: The graphene heating tube comprises: A tube body, wherein a graphene heating element is arranged inside the tube body; Electrodes, connected to both ends of the tube body and electrically connected to the graphene heating element; Insulating heads are fixed at both ends of the tube body.

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