Shielding structure and oven thereof
By using a shielded abutment plate and elastic protruding ring in the oven, the problems of microwave leakage and microwave arcing are solved, and a tight connection between the heating element and the oven shell wall is achieved, thus avoiding microwave leakage.
Patent Information
- Application Number
- CN202423050820.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing ovens suffer from microwave leakage and microwave arcing, especially at uneven gaps caused by localized deformation between the fixing gasket and the inner shell.
The shielding structure includes an abutment plate, a first elastic convex ring, and an elastic inclined ring. Through elastic deformation, it fits tightly against the oven shell wall, replacing the contact between the fixing gasket and the shell wall, ensuring a tight connection between the shielding structure and the shell wall and preventing the formation of gaps.
It effectively avoids microwave leakage and microwave arcing, enhances the sealing of the connection between the heating element and the oven shell wall, and prevents microwave leakage.
Smart Images
Figure CN223626221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oven technology, and in particular to a shielding structure and its oven. Background Technology
[0002] The oven includes a heating element, an inner shell, a gasket, and a fixing screw. The electrical connection of the heating element passes through the gasket and the inner shell, located outside the inner shell. The fixing screw passes through the gasket and the inner shell and connects to a fixing nut on the outside of the inner shell. Due to the characteristics of microwaves, the microwaves generated by the heating element can easily pass through the uniform gap between the gasket and the inner shell, resulting in microwave leakage. If the inner shell near the gasket is subjected to an external impact and undergoes localized deformation, an uneven gap will form between the gasket and the inner shell. The microwaves generated by the heating element will discharge when passing through this uneven gap, resulting in microwave arcing. Utility Model Content
[0003] In view of this, the present invention provides a shielding structure and its oven to solve the problems of microwave leakage and microwave arcing in existing ovens.
[0004] To achieve one or more of the above objectives or other objectives, this utility model proposes a shielding structure, which includes an abutment plate; the first wall surface of the abutment plate is raised to form a first elastic protruding ring, the first elastic protruding ring is arranged around the center of the abutment plate, the periphery of the abutment plate is bent to form an elastic inclined ring, the outer ring edges of the first elastic protruding ring and the elastic inclined ring are used to elastically deform and abut against the shell wall of the oven, and the second wall surface of the abutment plate is used to abut against a fixing gasket.
[0005] Furthermore, the abutment plate is provided with a first mounting hole and a second mounting hole. Both the first mounting hole and the second mounting hole are located in the inner ring of the first elastic protruding ring. The first mounting hole is used to fit the heating tube of the oven, and the second mounting hole is used to fit the fixing screw that is screwed to the fixing gasket and the shell wall of the oven.
[0006] Furthermore, the first wall surface of the first elastic protrusion ring is used to elastically deform and abut against the shell wall of the oven, and the second wall surface of the first elastic protrusion ring is recessed towards the first wall surface of the first elastic protrusion ring.
[0007] Furthermore, the vertical distance from the outer edge of the elastic inclined ring to the first wall of the abutment plate is greater than the vertical distance from the protruding point of the first wall of the first elastic convex ring to the first wall of the abutment plate.
[0008] Furthermore, the periphery of the abutment plate is bent along the direction toward the second wall surface of the abutment plate to form a first bending ring, and the outer ring edge of the first bending ring is bent along the direction toward the first wall surface of the abutment plate to form a second bending ring, and the inner ring edge of the elastic inclined ring is connected to the outer ring edge of the second bending ring.
[0009] Furthermore, the cross-section connecting the first bending ring and the second bending ring is arch-shaped.
[0010] Furthermore, the vertical distance from the first wall surface at the outer edge of the first bending ring to the first wall surface of the abutting plate is greater than the vertical distance from the second wall surface of the abutting plate to the first wall surface of the abutting plate.
[0011] Furthermore, the first elastic protruding ring is located in the middle between the center of the abutment plate and the periphery of the abutment plate.
[0012] This utility model also provides an oven, which includes the above-mentioned shielding structure, fixing screw, fixing nut, heating element, inner shell, fixing gasket and power cord;
[0013] The heating element includes a heating section and an electrical connection section. Both ends of the heating element are connected to one end of each of the two electrical connection sections. The heating section is located inside the inner housing. The electrical connection section passes through the fixing gasket, the first mounting hole, and the inner housing in sequence to be located outside the inner housing. The electrical connection section is connected to the power cord. The head of the fixing screw is located inside the inner housing. The threaded body of the fixing screw passes through the fixing gasket, the second mounting hole, and the inner housing in sequence to be located outside the inner housing. The threaded body of the fixing screw is threadedly connected to the fixing nut.
[0014] Furthermore, the first mounting hole is provided in a one-to-one correspondence with the electrical connection segment, and there are two or more first mounting holes; all the first mounting holes are distributed at intervals with the second mounting hole as the center.
[0015] Implementing the embodiments of this utility model will have the following beneficial effects:
[0016] The shielding structure and oven proposed in this utility model elastically abut against the oven shell wall through a first elastic convex ring. The shielding structure is placed between the fixed gasket and the oven shell wall. As the fixed gasket gradually approaches the oven shell wall, the first elastic convex ring deforms under force, causing the inner ring edge of the elastic inclined ring to lift towards the oven shell wall. Then, the outer ring edge of the elastic inclined ring abuts against the oven shell wall, causing the outer ring edge of the elastic inclined ring to lift away from the oven shell wall. As a result, the first wall surface of the elastic inclined ring gradually adheres to the oven shell wall, and the contact area between the two gradually increases.
[0017] In summary, by having the shielding structure closely adhere to the oven shell wall instead of the fixing gasket, the fixed connection between the fixing gasket and the oven shell wall is maintained, while the shielding structure is also closely adhered to the oven shell wall, thus avoiding the formation of gaps between the shielding structure and the oven shell wall. This prevents microwave leakage and microwave arcing at the connection between the heating element and the oven shell wall. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] in:
[0020] Figure 1 This is a schematic diagram of the shielding structure in one embodiment of the present invention;
[0021] Figure 2 This is a cross-sectional view of the shielding structure in one embodiment of the present invention;
[0022] Figure 3 This is a schematic diagram of the oven structure in one embodiment of the present invention;
[0023] Figure 4 This is a cross-sectional view of an oven in one embodiment of the present invention.
[0024] Figure label:
[0025] 10. Shielding structure; 11. Abutment plate; 111. First mounting hole; 112. Second mounting hole; 12. First elastic protruding ring; 13. Elastic inclined ring; 14. First bending ring; 15. Second bending ring; 20. Fixing screw; 30. Fixing nut; 40. Heating element; 41. Heating section; 42. Electrical connection section; 50. Inner shell; 60. Fixing gasket. Detailed Implementation
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order; the cold water mentioned in the specification and claims of this invention includes room temperature water.
[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0028] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0029] Reference Figures 1 to 4 The first embodiment of this application proposes a shielding structure 10, which includes an abutment plate 11. The first wall surface of the abutment plate 11 is raised to form a first elastic protruding ring 12. The first elastic protruding ring 12 is arranged around the center of the abutment plate 11. The periphery of the abutment plate 11 is bent to form an elastic inclined ring 13. The outer ring edges of the first elastic protruding ring 12 and the elastic inclined ring 13 are used to elastically deform and abut against the shell wall of the oven. The second wall surface of the abutment plate 11 is used to abut against a fixing gasket 60.
[0030] In this embodiment, the shielding structure 10 is disposed between the fixing pad 60 and the oven shell wall by the first elastic protruding ring 12 elastically abutting against the oven shell wall. As the fixing pad 60 gradually approaches the oven shell wall, the first elastic protruding ring 12 deforms under force, causing the inner ring edge of the elastic inclined ring 13 to lift towards the direction of the oven shell wall. Then, the outer ring edge of the elastic inclined ring 13 abuts against the oven shell wall, causing the outer ring edge of the elastic inclined ring 13 to lift away from the oven shell wall. As a result, the first wall surface of the elastic inclined ring 13 gradually adheres to the oven shell wall, and the contact area between the two gradually increases.
[0031] In summary, by having the shielding structure 10 closely adhere to the oven shell wall instead of the fixing gasket 60, the fixed connection between the fixing gasket 60 and the oven shell wall is maintained. This also increases the tightness between the shielding structure 10 and the oven shell wall, preventing gaps from forming between the shielding structure 10 and the oven shell wall. This avoids microwave leakage and microwave arcing at the connection between the heating element 40 and the oven shell wall.
[0032] Reference Figures 1 to 2 The abutment plate 11 is provided with a first mounting hole 111 and a second mounting hole 112. The first mounting hole 111 and the second mounting hole 112 are both located in the inner ring of the first elastic protruding ring 12. The first mounting hole 111 is used to fit the heating tube 40 of the oven, and the second mounting hole 112 is used to fit the fixing screw 20 which is screwed to the fixing gasket 60 and the shell wall of the oven.
[0033] In this embodiment, the heating element 40 passes sequentially through the fixing gasket 60, the first mounting hole 111, and the oven shell wall, and is externally positioned outside the oven shell wall. The fixing screw 20 passes sequentially through the fixing gasket 60, the second mounting hole 112, and the oven shell wall, and is then screwed and fixed to the fixing nut 30, so that the connection between the heating element 40 and the oven shell wall is located in the inner ring of the first elastic convex ring 12 and the inner ring of the elastic inclined ring 13. This makes the tight connection between the shielding structure 10 and the oven shell wall form a ring shape, surrounding the outer periphery of the connection between the heating element 40 and the oven shell wall.
[0034] After the fixing screw 20 is gradually fixed to the oven shell wall, the head of the fixing screw 20 applies a pushing force to the abutment plate 11. Because the fixing washer 60 is against the second wall surface of the first elastic protruding ring 12, the fixing washer 60 applies a pushing force to the first elastic protruding ring 12, causing the arc top of the first wall surface of the first elastic protruding ring 12 to gradually and tightly abut against the oven shell wall. The first elastic protruding ring 12 is compressed and deformed, causing the outer ring edge of the first elastic protruding ring 12 to lift up, thereby causing the inner ring edge of the elastic inclined ring 13 to lift up towards the oven shell wall. Specifically, the oven shell wall is the inner shell 50.
[0035] Reference Figures 1 to 2 The first wall surface of the first elastic protrusion ring 12 is used to elastically deform and abut against the shell wall of the oven, and the second wall surface of the first elastic protrusion ring 12 is recessed towards the first wall surface of the first elastic protrusion ring 12.
[0036] In this embodiment, the first elastic protruding ring 12 is made into an arch shape to maximize the deformation and compression of the first elastic protruding ring 12, so that when the first elastic protruding ring 12 is compressed, the inner ring edge of the elastic inclined ring 13 can be raised. After the first elastic protruding ring 12 is compressed and deformed, the raised outer ring edge of the first elastic protruding ring 12 can drive the inner ring edge of the elastic inclined ring 13 to be raised.
[0037] Reference Figures 1 to 2 The vertical distance from the outer edge of the elastic inclined ring 13 to the first wall of the abutment plate 11 is greater than the vertical distance from the protruding point of the first wall of the first elastic protruding ring 12 to the first wall of the abutment plate 11.
[0038] In this embodiment, the deformation and compression of the first elastic protruding ring 12 are further increased to ensure that after the first elastic protruding ring 12 is compressed and deformed, the outer ring edge of the first elastic protruding ring 12 can lift up the inner ring edge of the elastic inclined ring 13.
[0039] Reference Figures 1 to 2 The periphery of the abutment plate 11 is bent along the direction toward the second wall surface of the abutment plate 11 to form a first bending ring 14, and the outer ring edge of the first bending ring 14 is bent along the direction toward the first wall surface of the abutment plate 11 to form a second bending ring 15. The inner ring edge of the elastic inclined ring 13 is connected to the outer ring edge of the second bending ring 15.
[0040] In this embodiment, during the compression deformation of the first elastic protruding ring 12, the outer edge of the first elastic protruding ring 12 curls up, causing the outer edge of the first bent ring 14 to gradually approach the oven shell wall. As the outer edge of the first bent ring 14 gradually approaches the oven shell wall, the inner edge of the second bent ring 15 gradually approaches the oven shell wall, ultimately causing the inner edge of the elastic inclined ring 13 to gradually approach the oven shell wall. In summary, the elastic deformation of the elastic inclined ring 13 is enhanced by the first bent ring 14 and the second bent ring 15, thus increasing the tightness of the elastic inclined ring 13 against the oven shell wall.
[0041] Specifically, the fixing pad 60 only abuts against the second wall surface of the abutment plate 11. The connection between the first bending ring 14 and the second bending ring 15 is interfered with by the thrust of the fixing pad 60, so as to avoid the outer ring edge of the elastic inclined ring 13 from having too large a lifting force in the direction away from the oven shell wall, but the inner ring edge of the elastic inclined ring 13 from having too small a lifting force in the direction close to the oven shell wall.
[0042] Reference Figures 1 to 2 The cross section connecting the first bending ring 14 and the second bending ring 15 is arch-shaped.
[0043] In this embodiment, the compression and deformation of the first bending ring 14 and the second bending ring 15 are maximized to enhance the tightness of the elastic inclined ring 13 against the oven shell.
[0044] Reference Figures 1 to 2 The vertical distance from the first wall surface at the outer edge of the first bending ring 14 to the first wall surface of the abutting plate 11 is greater than the vertical distance from the second wall surface of the abutting plate 11 to the first wall surface of the abutting plate 11.
[0045] In this embodiment, the compression and deformation of the first bending ring 14 and the second bending ring 15 are maximized to enhance the tightness of the elastic inclined ring 13 against the oven shell.
[0046] Reference Figures 1 to 2 The first elastic protruding ring 12 is located in the middle between the center of the abutment plate 11 and the periphery of the abutment plate 11.
[0047] In this embodiment, the compression and deformation of the first elastic protrusion ring 12 are maximized, which facilitates the enhancement of the tightness of the first elastic protrusion ring 12 in elastically pressing against the oven shell wall.
[0048] In other embodiments, the first elastic protruding ring 12 is connected around the periphery of the abutment plate 11, that is, the inner ring edge of the first bent ring 14 is bent and connected to the outer ring edge of the first elastic protruding ring 12.
[0049] Reference Figures 1 to 4 The second embodiment of this application provides an oven, which includes the shielding structure 10, fixing screw 20, fixing nut 30, heating tube 40, inner shell 50, fixing gasket 60 and power cord (not shown in the figure);
[0050] The heating element 40 includes a heating section 41 and an electrical connection section 42. Both ends of the heating element 40 are respectively connected to one end of the two electrical connection sections 42. The heating section 41 is located inside the inner housing 50. The electrical connection section 42 passes through the fixing gasket 60, the first mounting hole 111, and the inner housing 50 in sequence to be located outside the inner housing 50. The electrical connection section 42 is connected to the power cord. The head of the fixing screw 20 is located inside the inner housing 50. The threaded body of the fixing screw 20 passes through the fixing gasket 60, the second mounting hole 112, and the inner housing 50 in sequence to be located outside the inner housing 50. The threaded body of the fixing screw 20 is threadedly connected to the fixing nut 30.
[0051] In this embodiment, the shielding structure 10 is sandwiched between the fixing gasket 60 and the inner shell 50. Under the pressure applied by the fixing screw 20, fixing nut 30 and fixing gasket 60, the shielding structure 10 is tightly attached to the inner shell 50, avoiding the formation of a gap between the shielding structure 10 and the inner shell 50, thereby preventing microwave leakage and microwave arcing at the connection between the heating tube 40 and the inner shell 50.
[0052] Reference Figures 3 to 4 The first mounting hole 111 is provided in a one-to-one correspondence with the electrical connection segment 42, and there are two or more first mounting holes 111; all the first mounting holes 111 are distributed at intervals with the second mounting hole 112 as the center.
[0053] In this embodiment, the connection between the shielding structure 10 and the inner shell 50 is strengthened.
[0054] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. A shielding structure, characterized in that, The abutment plate includes a first wall surface that protrudes to form a first elastic protruding ring. The first elastic protruding ring is arranged around the center of the abutment plate. The periphery of the abutment plate is bent to form an elastic inclined ring. The outer ring edges of the first elastic protruding ring and the elastic inclined ring are used to elastically deform and abut against the shell wall of the oven. The second wall surface of the abutment plate is used to abut against a fixing gasket.
2. The shielding structure according to claim 1, characterized in that, The abutment plate is provided with a first mounting hole and a second mounting hole. Both the first mounting hole and the second mounting hole are located in the inner ring of the first elastic protruding ring. The first mounting hole is used to fit the heating tube of the oven, and the second mounting hole is used to fit the fixing screw that is screwed to the fixing gasket and the shell wall of the oven.
3. The shielding structure according to claim 2, characterized in that, The first wall surface of the first elastic protrusion ring is used to elastically deform and abut against the shell wall of the oven, and the second wall surface of the first elastic protrusion ring is recessed towards the first wall surface of the first elastic protrusion ring.
4. The shielding structure according to claim 3, characterized in that, The vertical distance from the outer edge of the elastic inclined ring to the first wall of the abutment plate is greater than the vertical distance from the protruding point of the first wall of the first elastic convex ring to the first wall of the abutment plate.
5. The shielding structure according to claim 4, characterized in that, The periphery of the abutment plate is bent along the direction toward the second wall surface of the abutment plate to form a first bending ring, and the outer ring edge of the first bending ring is bent along the direction toward the first wall surface of the abutment plate to form a second bending ring, and the inner ring edge of the elastic inclined ring is connected to the outer ring edge of the second bending ring.
6. The shielding structure according to claim 5, characterized in that, The cross-section where the first bending ring and the second bending ring connect is arch-shaped.
7. The shielding structure according to claim 6, characterized in that, The vertical distance from the first wall surface at the outer edge of the first bending ring to the first wall surface of the abutting plate is greater than the vertical distance from the second wall surface of the abutting plate to the first wall surface of the abutting plate.
8. The shielding structure according to claim 7, characterized in that, The first elastic protruding ring is located in the middle between the center of the abutment plate and the periphery of the abutment plate.
9. An oven, the oven comprising a fixing screw, a fixing nut, a heating element, an inner shell, a fixing gasket, and a power cord, characterized in that, The oven further includes the shielding structure according to any one of claims 2-8; the heating element includes a heating section and an electrical connection section, with both ends of the heating element connected to one end of each of the two electrical connection sections respectively; the heating section is located inside the inner shell, and the electrical connection section passes through the fixing gasket, the first mounting hole, and the inner shell in sequence to be located outside the inner shell; the electrical connection section is connected to the power cord; the head of the fixing screw is located inside the inner shell, and the threaded body of the fixing screw passes through the fixing gasket, the second mounting hole, and the inner shell in sequence to be located outside the inner shell; the threaded body of the fixing screw is threadedly connected to the fixing nut.
10. The oven according to claim 9, characterized in that, The first mounting hole is provided in a one-to-one correspondence with the electrical connection segment, and there are two or more first mounting holes; all the first mounting holes are distributed at intervals with the second mounting hole as the center.