Microwave oven
By installing a metal shield outside the graphene heating tube in the microwave oven, the problem of microwave leakage is solved, the safety of equipment is improved, and the protection is provided.
Patent Information
- Application Number
- CN202420451538.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-08
AI Technical Summary
Existing graphene heating tubes cause microwave leakage in microwave ovens, affecting the safety of equipment use.
A metal shield is provided outside the graphene heating tube, so that microwaves cannot be leaked to the outside of the cavity by blocking.
Effectively prevent microwave leakage, improve equipment safety, and provide protection to prevent graphene heating pipe from being damaged.
Smart Images
Figure CN222464866U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of household appliances, in particular to a microwave oven. Background Art
[0002] Currently, graphene heating tubes are mainly used inside ovens. Because graphene heating tubes have high surface temperature and penetration ability, they are applied to oven products in most scenarios.
[0003] At present, the general graphene heating tube is composed of a quartz tube in the middle + ceramic heads and terminals at both ends. The inner wall of the quartz tube in the middle is coated with graphene material, and there are wiring terminals inside the two ends of the ceramic head. When this kind of graphene heating tube is used in a microwave oven, after the microwave generator emits microwaves, the microwaves will be reflected in all directions inside the inner pot. When reflected inside the graphene heating tube, the microwaves will be drawn out from the terminals in the ceramic head along the graphene, causing microwave leakage. Utility Model Content
[0004] Based on the technical problem in the prior art that graphene heating tubes cause microwave leakage in microwave ovens, the utility model provides a microwave oven, in which a metal shielding member is arranged outside the graphene heating tube for shielding, so that microwaves cannot leak from the inside of the graphene heating tube to the outside of the cavity, thereby improving the safety of equipment use.
[0005] The utility model provides a microwave oven, comprising:
[0006] An inner pot having a cooking cavity;
[0007] A microwave generating device, disposed on the inner pot, for emitting microwaves into the cooking cavity;
[0008] A graphene heating tube, located in the cooking cavity, with two ends thereof fixed to the inner pot;
[0009] A metal shielding member surrounds the outer side of the graphene heating tube; two ends of the metal shielding member are fixedly connected to the inner tank.
[0010] In some embodiments, the metal shield is a mesh structure.
[0011] In some embodiments, the metal shielding member includes a tube body having a plurality of through holes formed therein.
[0012] In some embodiments, the diameter of the through hole d≤5 mm.
[0013] In some embodiments, the distance D between two adjacent through holes is ≥ d+2 mm.
[0014] In some embodiments, the metal shield is fixed to the inner shell by welding.
[0015] In some embodiments, a first mounting hole is opened on the inner tank, and two ends of the graphene heating tube pass through the first mounting hole; a fixing piece is fixed on the outer side of the inner tank for fixed connection with the two ends of the graphene heating tube.
[0016] In some embodiments, the first mounting hole has a flange, and both ends of the metal shielding member are fixed to the flange by welding.
[0017] In some embodiments, a second mounting hole is provided on the fixing member, and two ends of the graphene heating tube pass through the second mounting hole to be fixedly connected to the fixing member.
[0018] In some embodiments, the cross-sections of both ends of the graphene heating tube are arcuate, and correspondingly, the second mounting hole is an arcuate hole.
[0019] Compared with the prior art, the advantages and positive effects of the utility model are:
[0020] The above-mentioned microwave oven uses a graphene heating tube, which can effectively improve cooking efficiency and cooking effects; at the same time, by arranging a metal shielding member outside the graphene heating tube for shielding, microwaves cannot leak from the inside of the graphene heating tube to the outside of the cavity, thereby improving the safety of equipment use; at the same time, the metal shielding member is covered on the outside of the graphene heating tube to play a protective role and prevent the graphene heating tube from being damaged by bumps. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] 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.
[0022] Figure 1 This is a schematic diagram of the internal structure of the microwave oven of the utility model;
[0023] Figure 2 for Figure 1 Exploded diagram of
[0024] Figure 3 It is a partial structural diagram of a metal shielding member in a microwave oven of the utility model;
[0025] Figure 4 It is a partial exploded diagram of the microwave oven of the utility model;
[0026] Figure 5 for Figure 4 A local enlarged view of location I in FIG.
[0027] Figure 6 This is a schematic diagram of the structure of the fixing parts in the microwave oven of the utility model;
[0028] Description of reference numerals:
[0029] Inner liner 100; mounting position 110; first mounting hole 120; flange 121;
[0030] Graphene heating tube 200;
[0031] Metal shield 300; tube body 310; through hole 320;
[0032] Fixing member 400; second mounting hole 410. DETAILED DESCRIPTION
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] Reference Figure 1-Figure 6 , is an embodiment of the microwave oven of the utility model.
[0038] The microwave oven includes an inner pot 100 , a microwave generating device arranged on the inner pot 100 , a graphene heating tube 200 and a metal shielding member 300 .
[0039] The inner pot 100 has a cooking cavity.
[0040] The microwave generator is disposed on the top of the inner pot 100 for emitting microwaves into the cooking cavity. A mounting position 110 is disposed on the top of the inner pot 100 , and the microwave generator is mounted on the mounting position 110 .
[0041] The graphene heating tube 200 is located in the cooking cavity, and can be located above or to the side of the cooking cavity, for emitting radiant heat into the cooking cavity. Both ends of the graphene heating tube 200 are fixed to the inner pot 100. One or more graphene heating tubes 200 can be configured.
[0042] The metal shield 300 surrounds the outside of the graphene heating tube 200 to block microwaves and prevent microwaves from entering the graphene heating tube 200 and leaking to the outside of the cavity through the graphene heating tube 200. The two ends of the metal shield 300 are fixedly connected to the inner liner 100. That is, the metal shield 300 completely surrounds the part of the graphene heating tube 200 located in the inner liner 100, ensuring that the graphene heating tube 200 will not be interfered by microwaves.
[0043] The above-mentioned microwave oven uses a graphene heating tube 200, which can effectively improve cooking efficiency and cooking effects; at the same time, by arranging a metal shielding member 300 outside the graphene heating tube 200 for shielding, microwaves cannot leak from the inside of the graphene heating tube 200 to the outside of the cavity, thereby improving the safety of equipment use; at the same time, the metal shielding member 300 is covered on the outside of the graphene heating tube 200 to play a protective role and prevent the graphene heating tube 200 from being damaged by bumps.
[0044] In this embodiment, see Figure 3 The metal shielding member 300 includes a tube body 310, and a plurality of through holes 320 are formed on the tube body 310. By forming the through holes 320, it is possible to ensure that the heat generated by the graphene heating tube 200 is emitted from the metal shielding member 300 to the maximum extent, and is baked on the food, thereby giving full play to the baking effect of the graphene heating tube 200.
[0045] The through holes 320 are preferably circular holes, and the diameters of the through holes 320 are equal. The diameter d of the through holes 320 is ≤ 5 mm, so as to block microwaves. Preferably, the diameter d of the through holes 320 is 5 mm, which can ensure that microwaves do not pass through, and at the same time, can ensure that heat is dissipated from the metal shielding member 300 to the maximum extent.
[0046] In addition, the distance D between adjacent through holes 320 is ≥ d + 2 mm, that is, the minimum width of the metal shielding member between adjacent through holes is not less than 2 mm to avoid microwave leakage. Preferably, it is 2 mm to ensure the maximum number of through holes and improve the heat dissipation effect.
[0047] The metal shielding member 300 may be made of a metal material such as stainless steel.
[0048] In another embodiment, the metal shielding member 300 may also be a mesh structure. The metal shielding member 300 may be formed by fiber weaving.
[0049] The metal shield 300 is spaced apart from the outer surface of the graphene heating tube 200 , and the spacing distance is preferably 0.1 mm-15 mm, so that the metal shield 300 blocks the microwave and optimizes the radiant heat transferred to the inner space of the cooking cavity.
[0050] In this embodiment, two ends of the metal shielding member 300 are fixed to the inner shell 100 by welding.
[0051] A first mounting hole 120 is formed on the inner container 100 , and two ends of the graphene heating tube 200 pass through the first mounting hole 120 .
[0052] A fixing member 400 is fixed to the outer side of the inner liner 100, and both ends of the graphene heating tube 200 are fixedly connected to the inner liner 100 through the fixing member 400. Specifically, a second mounting hole 410 is provided on the fixing member 400, and the second mounting hole 410 is arranged opposite to the first mounting hole 120, and the aperture of the second mounting hole 410 is smaller than the first mounting hole 120. Both ends of the graphene heating tube 200 pass through the first mounting hole 120 and the second mounting hole 410, and are limited and fixed by the second mounting hole 410.
[0053] The second mounting hole 410 is a non-circular hole, which can limit the circumferential rotation of the graphene heating tube 200 along its axis. Figure 6 As shown, the second mounting hole 410 is an arcuate hole. Correspondingly, the cross-sections of both ends of the graphene heating tube 200 are arcuate, which match the arcuate hole, so that the graphene heating tube 200 is firmly fixed on the inner tank 100.
[0054] like Figure 4 and Figure 5 As shown, the first mounting hole 120 of the liner 100 has a flange 121 turned outward, and both ends of the metal shielding member 300 pass through the first mounting hole 120 and are fixed to the flange 121 by welding.
[0055] The metal shield 300 and the flange 121 can be welded continuously or in sections. When welding in sections, the length of the weld between the metal shield 300 and the flange 121 can be 5 mm, and the interval between the welds can be 2-3 mm to avoid the microwaves leaking out through the gaps due to the long interval.
[0056] In other embodiments, necked portions may be provided at both ends of the metal shield 300 , and the necked portions and the second mounting holes 410 are fixed by interference fit.
[0057] In this embodiment, the fixing member 400 is a sheet structure, and the graphene heating tube 200 is arranged above the cooking cavity, and is arranged on both sides of the microwave generating device one after the other. The fixing member 400 is an L-shaped sheet, and the upper part of the fixing member 400 can be welded and fixed to the top surface of the inner pot 100 or fixedly connected to the inner pot 100 by screws or the like.
[0058] 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 microwave oven, characterized in that: include: An inner pot having a cooking cavity; A microwave generating device, disposed on the inner pot, for emitting microwaves into the cooking cavity; A graphene heating tube, located in the cooking cavity, with two ends thereof fixed to the inner pot; A metal shielding member surrounds the outside of the graphene heating tube, and two ends of the metal shielding member are fixedly connected to the inner container.
2. The microwave oven according to claim 1, characterized in that: The metal shielding member is a grid structure.
3. The microwave oven according to claim 1, characterized in that: The metal shielding member comprises a tube body, and a plurality of through holes are formed in the tube body.
4. The microwave oven according to claim 3, characterized in that: The diameter of the through hole is d≤5mm.
5. The microwave oven according to claim 4, characterized in that: The distance between two adjacent through holes is D≥d+2mm.
6. The microwave oven according to claim 1, characterized in that: The metal shielding member is fixed to the inner container by welding.
7. The microwave oven according to claim 1, characterized in that: The inner liner is provided with a first mounting hole, and the two ends of the graphene heating tube pass through the first mounting hole; a fixing piece is fixed on the outer side surface of the inner liner for fixed connection with the two ends of the graphene heating tube.
8. The microwave oven according to claim 7, characterized in that: The first mounting hole has a flange, and two ends of the metal shielding member are fixed to the flange by welding.
9. The microwave oven according to claim 7, characterized in that: The fixing member is provided with a second mounting hole, and two ends of the graphene heating tube pass through the second mounting hole to be fixedly connected with the fixing member.
10. The microwave oven according to claim 9, characterized in that: The cross-sections of both ends of the graphene heating tube are arcuate, and correspondingly, the second mounting hole is an arcuate hole.