Microwave oven cavity riveting structure and microwave oven

Abstract

The utility model provides a microwave oven cavity riveting structure and a microwave oven, the microwave oven cavity riveting structure comprises an upper cavity and a heating assembly, the upper cavity is provided with a riveting assembly area, the riveting assembly area of the upper cavity is connected with the outer edge of the heating assembly in an edge folding riveting mode, the upper surface of the riveting assembly area is provided with a plurality of grooves, and the grooves are connected with the heating assembly in an edge folding riveting mode. The distance between any two adjacent grooves is less than or equal to the wavelength of microwaves generated by the microwave oven; the utility model not only can effectively solve the gap existing in the riveting of the upper cavity and the heating component and avoid the problem of microwave leakage, but also reduces the total riveting thickness between the upper cavity and the heating component to a certain extent, particularly, the total riveting thickness at the groove is smaller, the occupation amount of the riveting structure to the internal space of the microwave oven is reduced, and the service life of the microwave oven is prolonged. The space utilization rate of the internal structure of the microwave oven is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave ovens, and particularly relates to a riveting structure for a microwave oven cavity and a microwave oven. Background Art

[0002] Microwave ovens are commonly used electrical appliances in people's daily lives and have various structural forms. With the continuous improvement of industrial design levels, as well as the application of new processes, new materials, and new shapes in microwave ovens, not only various microwave ovens have been developed, but also the corresponding structural optimizations have been carried out on microwave ovens.

[0003] In the prior art, with reference to the attached Figures 1-4 , when assembling the upper cavity of the microwave oven with the heating component, the edges of the assembly position of the upper cavity are first folded and the folded edges around the heating component are inserted and matched with each other, and then riveted and pressed. However, the sheet metal of the upper cavity has been painted. After being riveted and pressed with the folded edges around the heating component, according to the characteristics of the metal material and the dust in the workshop environment, some gaps will appear at the riveting joints, resulting in microwave leakage. For example: the normal thickness of the sheet metal of the upper cavity is 0.5 mm. Theoretically, the total thickness after riveting and pressing the folded edge of the sheet metal of the upper cavity and the folded edges around the heating component is about 2.0 mm. However, in actual production, the total thickness after riveting and pressing is 2.2 - 2.5 mm, or even more than 2.5 mm (as shown in the attached Figure 4 ). Therefore, the extra 0.2 - 0.5 mm after actual riveting is the gap that is not fully pressed and fitted, posing a risk of microwave leakage.

[0004] At the same time, in addition to the risk of microwave leakage caused by the gaps after riveting, it also makes the total riveting thickness between the upper cavity and the heating component larger, which is likely to increase the occupied space inside the microwave oven and is not conducive to improving the space utilization rate of the internal structure of the microwave oven. Summary of the Utility Model

[0005] In view of this, the present utility model aims to provide a riveting structure for a microwave oven cavity and a microwave oven to solve the problem of the risk of microwave leakage caused by the gaps generated during the riveting assembly of the upper cavity and the heating component of the microwave oven in the prior art.

[0006] To achieve the above object, the technical solution of the present utility model is realized as follows:

[0007] A riveting structure for a microwave oven cavity includes an upper cavity and a heating component. The upper cavity has a riveting assembly area, and the upper cavity is connected to the outer edge of the heating component in the form of folded-edge riveting. A plurality of grooves are provided on the upper surface of the riveting assembly area, and the distance between any two adjacent grooves is ≤ the wavelength of the microwave generated by the microwave oven.

[0008] Further, the total riveting thickness at the groove is denoted as K, and K is 1.6 - 1.8 mm.

[0009] Further, the distance between any two adjacent grooves ≤ 24 mm.

[0010] Further, a recessed part is formed in the riveting and assembling area of the upper cavity body. A bent edge is arranged on the inner edge of the recessed part. The bent edge includes an upper folding plate and a lower folding plate. One side of the upper folding plate is connected to the main board body of the upper cavity body, and the other side is connected to the lower folding plate.

[0011] Further, the grooves are arranged on the upper surface of the upper folding plate in an array.

[0012] Further, a bent part is arranged on the outer edge of the heating component. The bent edge includes an upper plate and a lower plate. One side of the lower plate is connected to the main board body of the heating component, and the other side is connected to the upper plate.

[0013] Further, a first clamping space is formed between the upper folding plate and the lower folding plate, and the upper plate is arranged in the first clamping space; a second clamping space is formed between the upper plate and the lower plate, and the lower folding plate is arranged in the first clamping space.

[0014] Further, at the riveting position between the upper cavity body and the heating component, the lower plate, the lower folding plate, the upper plate, and the upper folding plate are arranged in sequence from bottom to top.

[0015] A microwave oven includes the microwave oven cavity body riveting structure described above.

[0016] Compared with the prior art, the microwave oven cavity body riveting structure and the microwave oven of the present utility model have the following advantages:

[0017] For the microwave oven cavity body riveting structure and the microwave oven of the present utility model, compared with the prior art, for the riveting and assembling between the upper cavity body and the heating component, multiple grooves are arranged at the riveting position of the upper cavity body in this application, and the distance between any two adjacent grooves ≤ the microwave wavelength generated by the microwave oven. This can not only effectively solve the gap existing in the riveting between the upper cavity body and the heating component and avoid the problem of microwave leakage, but also reduce the total riveting thickness between the upper cavity body and the heating component to a certain extent. Especially, the total riveting thickness at the groove is smaller, reducing the occupation of the internal space of the microwave oven by the riveting structure, which is beneficial to improving the space utilization rate of the internal structure of the microwave oven.

[0018] In addition, due to the arrangement of the grooves, the components arranged above the upper cavity body inside the microwave oven can extend into the grooves or be clamped with the grooves, which is beneficial to improving the assembly firmness between the upper cavity body and the components above the upper cavity body, and can also further improve the space utilization rate of the internal structure of the microwave oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 is a schematic structural diagram of a microwave oven in the prior art;

[0021] Figure 2 is an axonometric sectional view of a microwave oven at its inner cavity in the prior art;

[0022] Figure 3 is a schematic sectional view of a microwave oven at its inner cavity in the prior art;

[0023] Figure 4 is a partial enlarged view of the prior art at Figure 3 at A in;

[0024] Figure 5 is a schematic diagram of a riveting structure of a microwave oven cavity according to an embodiment of the present utility model;

[0025] Figure 6 is a top view of a riveting structure of a microwave oven cavity according to an embodiment of the present utility model;

[0026] Figure 7 is an axonometric sectional view of a riveting structure of a microwave oven cavity according to an embodiment of the present utility model at the inner cavity of the microwave oven;

[0027] Figure 8 is a schematic sectional view of a riveting structure of a microwave oven cavity according to an embodiment of the present utility model at the inner cavity of the microwave oven (section at the groove);

[0028] Figure 9 is a partial enlarged view of the embodiment of the present utility model at Figure 8 at B in.

[0029] Description of reference numerals:

[0030] 1. Upper cavity; 10. Riveting assembly area; 11. Upper folding plate; 12. Lower folding plate; 13. Groove; 2. Heating component; 21. Upper plate; 22. Lower plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will describe the inventive concepts of the present disclosure using the terms that those skilled in the art would typically use to convey the substance of their work to other skilled persons in the art. However, these inventive concepts may be embodied in many different forms and should not be considered limited to the embodiments described herein.

[0032] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. For the convenience of intuitive understanding of the drawings, the riveting assembly area 10 in the drawings of this application is indicated by a red line, the size markings of the total riveting thickness in the prior art are in blue line, and the size markings of the total riveting thickness at the groove 13 in this application are in pink line.

[0033] The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0034] In the prior art, when the upper cavity of a microwave oven is riveted and assembled with the heating component, there are gaps that are not fully pressed and fitted after the flanges of the upper cavity sheet metal and the flanges around the heating component are riveted and pressed tightly. There is a risk of microwave leakage in these gaps. At the same time, it also makes the total riveting thickness between the upper cavity and the heating component larger, which is likely to increase the occupancy of the internal space of the microwave oven and is not conducive to improving the space utilization rate of the internal structure of the microwave oven.

[0035] In order to solve the problem that the gaps generated during the riveting and assembly of the upper cavity of the microwave oven and the heating component pose a risk of microwave leakage, this embodiment proposes a microwave oven cavity riveting structure, as shown in the attached Figures 5-9 figure. The microwave oven cavity riveting structure includes an upper cavity 1 and a heating component 2. The upper cavity 1 has a riveting assembly area 10. The upper cavity 1 is connected to the outer edge of the heating component 2 in the form of flange riveting. A plurality of grooves 13 are provided on the upper surface of the riveting assembly area 10, and the distance between any two adjacent grooves 13 ≤ the wavelength of the microwave generated by the microwave oven.

[0036] Compared with the prior art, for the riveting and assembly between the upper cavity and the heating component, this application provides a plurality of grooves 13 at the riveting position of the upper cavity 1, and the distance between any two adjacent grooves 13 ≤ the wavelength of the microwave generated by the microwave oven. This can not only effectively solve the gaps existing in the riveting of the upper cavity and the heating component and avoid the problem of microwave leakage, but also reduce the total riveting thickness between the upper cavity and the heating component to a certain extent. In particular, the total riveting thickness at the groove 13 is smaller, reducing the occupancy of the riveting structure in the internal space of the microwave oven and being conducive to improving the space utilization rate of the internal structure of the microwave oven.

[0037] Specifically, during the actual riveting process, due to the setting of the grooves 13, the area to be riveted can be segmented, making the stress area at the riveting position smaller, so that the upper cavity and the heating component are pressed tighter, and at the same time making the connection of the riveting structure more reliable.

[0038] In addition, due to the provision of the groove 13, components disposed above the upper cavity inside the microwave oven can extend into the groove 13 or be snap-fitted with the groove 13, which is conducive to improving the assembly firmness between the upper cavity and the components above the upper cavity, and can further improve the space utilization rate of the internal structure of the microwave oven.

[0039] The microwave generated by the microwave oven is mainly generated by the magnetron of the microwave oven. In this application, it is preferred that the wavelength of the microwave generated by the microwave oven is 24 mm. However, this application only takes this data as an example and is not limited to this data.

[0040] As shown in the Figure 9 attachment, the total riveting thickness at the groove 13 is denoted as K. Or more precisely, when the upper cavity 1 and the heating component 2 are in a riveted state, the distance between the bottom of the groove 13 (the lowest point on the upper surface of the upper folding plate 11) and the lower surface of the lower plate 22 of the heating component 2 is denoted as K, and K is 1.6 - 1.8 mm. Thus, at least the total riveting thickness at the groove 13 in this application can be significantly smaller than the total riveting thickness in the prior art.

[0041] For the riveting areas outside the groove 13, the finally obtained total riveting thickness in this application can be effectively controlled within 2.2 - 2.5 mm. Combining the setting of the groove 13 and the total riveting thickness at the groove 13 can effectively prevent microwave leakage.

[0042] The riveting and assembling area 10 of the upper cavity 1 forms a recess with an opening. The inner edge of the recess is provided with a bent edge, and the bent edge includes an upper folding plate 11 and a lower folding plate 12. One side of the upper folding plate 11 is connected to the main body plate of the upper cavity 1, and the other side is connected to the lower folding plate 12; the groove 13 is arranged on the upper surface of the upper folding plate 11 in an array. Thus, on the one hand, with the provision of the recess and the bent edge, the stress distribution of the upper cavity 1 can be improved, which is conducive to improving the overall mechanical performance of the upper cavity 1. On the other hand, it ensures the regular setting of the groove 13 and guarantees that the distance between any two adjacent grooves 13 ≤ the wavelength of the microwave generated by the microwave oven.

[0043] The outer edge of the heating component 2 is provided with a bent portion, and the bent edge includes an upper plate 21 and a lower plate 22. One side of the lower plate 22 is connected to the main body plate of the heating component 2, and the other side is connected to the upper plate 21.

[0044] A first clamping space is formed between the upper folding plate 11 and the lower folding plate 12, and the upper plate 21 is disposed in the first clamping space; a second clamping space is formed between the upper plate 21 and the lower plate 22, and the lower folding plate 12 is disposed in the first clamping space. By riveting and pressing between the upper cavity 1 and the heating component 2, at the riveting position between the upper cavity 1 and the heating component 2, the lower plate 22, the lower folding plate 12, the upper plate 21, and the upper folding plate 11 are sequentially arranged from bottom to top.

[0045] In the present utility model, for any microwave oven, it may include the microwave oven cavity riveting structure described in this embodiment. At the same time, the microwave oven cavity riveting structure of the present application is not limited to the riveting between the upper cavity 1 and the heating component 2, and can also be applied to the riveting at other structures of the microwave oven, that is, the microwave oven cavity riveting structure of the present application can be applied to the riveting process of all microwave ovens.

[0046] In addition, the microwave oven further includes conventional components of the microwave oven such as a magnetron, a housing, etc. Since they are all prior arts, they will not be described in detail here.

[0047] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A microwave oven cavity riveting structure, characterized in that: The microwave oven cavity riveting structure comprises an upper cavity (1) and a heating component (2), wherein the upper cavity (1) has a riveted assembly area (10), and the upper cavity (1) is connected to the outer edge of the heating component (2) in the form of folded riveting between the riveted assembly area (10), and a plurality of grooves (13) are arranged on the upper surface of the riveted assembly area (10), and the distance between any two adjacent grooves (13) is ≤ the wavelength of microwaves generated by the microwave oven.

2. A microwave oven cavity riveting structure according to claim 1, characterized in that: The total riveting thickness at the groove (13) is recorded as K, and K is 1.6-1.8 mm.

3. The microwave oven cavity riveting structure according to claim 1, characterized in that: The distance between any two adjacent grooves (13) is ≤24 mm.

4. The microwave oven cavity riveting structure according to claim 1, characterized in that: The riveted assembly area (10) of the upper cavity (1) forms a recessed portion, and the inner edge of the recessed portion is provided with a bending edge, and the bending edge includes an upper folding plate (11) and a lower folding plate (12), and one side of the upper folding plate (11) is connected to the main body of the upper cavity (1), and the other side is connected to the lower folding plate (12).

5. The microwave oven cavity riveting structure according to claim 4, characterized in that: The grooves (13) are arranged in an array on the upper surface of the upper folding plate (11).

6. The microwave oven cavity riveting structure according to claim 4, characterized in that: A bending portion is provided on the outer edge of the heating component (2), and the bending edge comprises an upper plate (21) and a lower plate (22); one side of the lower plate (22) is connected to the main body of the heating component (2), and the other side is connected to the upper plate (21).

7. The microwave oven cavity riveting structure according to claim 6, characterized in that: A first clamping space is formed between the upper folding plate (11) and the lower folding plate (12), and the upper plate (21) is arranged in the first clamping space; a second clamping space is formed between the upper plate (21) and the lower plate (22), and the lower folding plate (12) is arranged in the first clamping space.

8. The microwave oven cavity riveting structure according to claim 6, characterized in that: At the riveted position between the upper cavity (1) and the heating component (2), the lower plate (22), the lower folding plate (12), the upper plate (21), and the upper folding plate (11) are arranged in sequence from bottom to top.

9. A microwave oven, characterized in that: The microwave oven comprises the microwave oven cavity riveting structure according to any one of claims 1-8.

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