Protective nets and integrated stoves
By using a multi-stage bending and folding design with reinforcing ribs, combined with a folded back panel structure, the noise problem of the integrated stove's protective mesh was solved, achieving increased rigidity and cost savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU ROBAM APPLIANCES CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-03
AI Technical Summary
The existing protective mesh structure of integrated stoves is prone to generating noise during machine operation. Existing solutions increase cost or complexity and contradict the trend of lightweighting and cost reduction.
The design employs multi-level bending and folding edges and a first reinforcing rib, combined with the folded edge structure of the back panel and the second reinforcing rib, forming a three-point stable connection to enhance the protective net's resistance to deformation and structural rigidity.
Without increasing the material thickness, vibration and noise were significantly reduced, production costs were lowered, and the rigidity and stability of the protective netting were improved.
Smart Images
Figure CN224454667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a protective net and an integrated stove. Background Technology
[0002] As an essential piece of equipment in modern kitchens, the structural design of integrated cooktops directly impacts product performance and user experience. Currently, the back panel and protective mesh of integrated cooktops primarily employ a flat panel structure or a simple folded edge design. While this structure facilitates manufacturing, it lacks effective reinforcement measures. During operation, the motor's operation and airflow generate mechanical vibrations. These vibrations, transmitted to the back panel and protective mesh, can easily cause resonance in the panels, resulting in significant noise. This noise problem is particularly pronounced when the integrated cooktop operates at high power for extended periods, severely impacting kitchen comfort and user experience.
[0003] To address this issue, some manufacturers have attempted to improve structural rigidity and reduce vibration and noise by increasing the thickness of the sheet metal or welding a first reinforcing rib. While this approach can improve the problem to some extent, it also significantly increases material costs and requires more complex manufacturing processes. For example, increasing the sheet metal thickness leads to an increase in overall weight, affecting product installation and handling; while welding a first reinforcing rib requires additional processing steps, increasing production difficulty and labor costs. These solutions not only increase manufacturing costs but also contradict the current trend of lightweighting and cost reduction in the home appliance industry. Utility Model Content
[0004] The purpose of this utility model is to provide a protective net and an integrated stove to alleviate the technical problem of insufficient strength of existing protective nets.
[0005] In a first aspect, the present invention provides a protective net, comprising: a net body, wherein the rear edge of the net body is provided with a multi-level bending flange, the multi-level bending flange comprising a plurality of flanges connected in sequence, and adjacent flanges being arranged at an included angle;
[0006] At least one flange is provided with a boss, which forms a first reinforcing rib, and the first reinforcing rib extends along the length direction of the multi-level bending flange.
[0007] Furthermore, the edges of the net body, except for the rear edge, are provided with downward folded edges.
[0008] Furthermore, the multi-stage bending flange includes a first flange that starts from the rear edge of the mesh and folds upward, and a second flange that folds forward is provided at the top of the first flange;
[0009] The first flange is provided with a first reinforcing rib that protrudes in the front-to-back direction.
[0010] Furthermore, the first reinforcing rib is formed by protruding from the front surface of the first flange to the rear surface.
[0011] Secondly, the present invention provides an integrated stove, including the aforementioned protective net.
[0012] Thirdly, the present invention provides an integrated stove, including the aforementioned protective net;
[0013] The integrated stove also includes a back panel with a folded edge structure, in which the first and second folded edges are nested.
[0014] Furthermore, the folded edge structure includes a third folded edge that starts from the top of the back panel and folds forward, and the front end of the third folded edge is provided with a fourth folded edge that folds downward.
[0015] An opening is formed between the bottom of the fourth flange and the back panel;
[0016] The back plate is provided with a forward-protruding second reinforcing rib, which is located below the opening, and the side of the second reinforcing rib facing the opening forms a limiting surface, which is used to support the protective net.
[0017] Furthermore, the limiting surface is an inclined plane that is tilted relative to the horizontal plane, and the inclined plane tilts upward from front to back.
[0018] Furthermore, the top surface of the second flange contacts the bottom surface of the third flange;
[0019] The back of the first reinforcing rib contacts the front of the back plate;
[0020] The inflection point formed between the mesh and the first flange contacts the inclined surface.
[0021] Furthermore, the distance between the bottom end of the fourth flange and the inclined surface is A, the height of the first flange is a, the distance between the fourth flange and the back plate is b, the lateral distance between the front end of the second flange and the back of the first reinforcing rib is c, and the vertical distance between the inclined surface and the fourth flange is d. a is less than b, c is less than d, and c is less than A.
[0022] This utility model has at least the following advantages or beneficial effects:
[0023] The protective net provided by this utility model includes: a net body, the rear edge of which is provided with a multi-level bending flange, the multi-level bending flange including a plurality of flanges connected in sequence, and two adjacent flanges being arranged at an angle; at least one flange is provided with a boss, the boss forming a first reinforcing rib, the first reinforcing rib extending along the length direction of the multi-level bending flange.
[0024] The protective netting provided by this utility model significantly improves its resistance to deformation and structural rigidity by incorporating multi-level bending and flanging with a first reinforcing rib. The first reinforcing rib extends along the length of the multi-level bending and flanging, particularly enhancing strength in the weakest length direction. Furthermore, the first reinforcing rib is formed by stamping, eliminating the need for additional welding and saving costs. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 A schematic diagram of the protective net provided in an embodiment of this utility model;
[0027] Figure 2 for Figure 1 A magnified view of a portion of position A in the middle;
[0028] Figure 3 A side view of the protective net provided in an embodiment of this utility model;
[0029] Figure 4 A schematic diagram of an integrated stove provided for an embodiment of this utility model;
[0030] Figure 5 for Figure 4 A magnified view of a portion of position B in the middle;
[0031] Figure 6 A dimensional diagram showing the fitting position of the integrated stove provided in an embodiment of this utility model.
[0032] Icons: 1-Screw mounting part; 2-Folded edge; 3-Mesh body; 4-First folded edge; 5-First reinforcing rib; 6-Back plate; 7-Third folded edge; 8-Fourth folded edge; 9-Second reinforcing rib; 10-Beveled surface; 11-Second folded edge. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0037] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] like Figure 1 The protective net provided by this utility model includes: net body 3.
[0040] The protective net is rectangular in shape, with bent edges on all four sides. It is composed of multiple meshes inside, which can prevent foreign objects from falling into the smoke collection chamber during cleaning and help filter oil fumes. The protective net also has screw mounting parts 1 at both ends.
[0041] like Figure 1and Figure 2 As shown, the rear edge of the mesh body 3 is provided with a multi-level bending flange, which includes multiple flanges connected in sequence, with adjacent flanges arranged at an angle. In this embodiment, the multi-level bending flange includes a first flange 4 and a second flange 11, which are arranged at a 90° angle.
[0042] Specifically, the bottom of the first flange 4 is connected to the rear edge of the net body 3, the first flange 4 is perpendicular to the net body 3, the second flange 11 is located in front of the first flange 4, and the rear edge of the second flange 11 is connected to the top of the first flange 4. Of course, additional flanges can also be added to the front edge of the second flange 11.
[0043] like Figure 3 As shown, a first reinforcing rib 5 is provided on the first flange 4. The first reinforcing rib 5 can be formed by protruding from the front side to the rear side, and the length direction of the first reinforcing rib 5 is consistent with the length direction of the mesh body 3.
[0044] The protective netting provided by this utility model significantly improves its resistance to deformation and structural rigidity by incorporating multi-level bending and flanging with a first reinforcing rib 5. The first reinforcing rib 5 extends along the length of the multi-level bending and flanging, particularly enhancing strength in the weakest length direction. Furthermore, the first reinforcing rib 5 is formed by stamping, eliminating the need for additional welding and saving costs.
[0045] like Figure 1 As shown, the edges of the other sides (front, left and right) of the mesh body 3, except for the rear edge, are provided with downward folded edges 2.
[0046] The integrated stove provided by this utility model includes the aforementioned protective net.
[0047] like Figure 4 and Figure 5 As shown, another integrated stove provided by this utility model includes the aforementioned protective mesh; furthermore, the integrated stove also includes a back panel 6, on which a folded edge structure is provided, with the first flange 4 and the second flange 11 nested within the folded edge structure. The multi-level bending flanges can be constrained by the folded edge structure, thereby reducing swaying.
[0048] Specifically, the folded edge structure includes a third flange 7 that starts from the top of the back plate 6 and folds forward. The front end of the third flange 7 is provided with a fourth flange 8 that folds downward. An opening is formed between the bottom end of the fourth flange 8 and the back plate 6, allowing the multi-stage folded flanges to pass through. A second reinforcing rib 9 protruding forward is provided on the back plate 6 (the second reinforcing rib 9 can be triangular, trapezoidal, or other shapes; a semi-circle is not acceptable as it cannot effectively resist the protective net). The second reinforcing rib 9 is located below the opening, and the side of the second reinforcing rib 9 facing the opening forms a limiting surface. The limiting surface can be flat and is used to support the protective net.
[0049] The limiting surface is an inclined plane 10 that is tilted relative to the horizontal plane. From front to back, the inclined plane 10 tilts upward, thereby limiting the protective net in both the downward and rearward directions.
[0050] During assembly, the first flange 4 and the second flange of the protective net are inserted into the grooves formed by the third flange 7 and the fourth flange of the back plate 6, so that the first reinforcing rib 5 of the protective net is in close contact with the inner wall of the back plate 6, and the second flange 11 of the protective net forms a surface contact with the third flange 7 of the back plate 6. At the same time, the bend of the first flange 4 of the protective net forms a line-to-surface contact with the limiting surface of the top of the second reinforcing rib 9 of the back plate 6, forming a three-point stable connection structure, which can ensure that the protective net and the back plate 6 achieve a multi-point rigid connection and mutually enhance their strength.
[0051] The screw mounting parts 1 at both ends of the protective net are fixedly connected to the smoke collection chamber assembly by screws. Combined with the three-point connection structure, when the protective net is subjected to an upward or downward force, the force can be transmitted to the third flange 7 of the back plate 6 or the limiting surface of the top of the second reinforcing rib 9 of the back plate 6. When the back plate 6 is subjected to a forward or backward force, the force can also be transmitted to the protective net, realizing bidirectional force transmission and mutual reinforcement.
[0052] like Figure 6 As shown, in the specific assembly process, the protective netting needs to be inserted into the slot of the back plate 6 at a certain angle, then flattened to ensure that all contact points are fully fitted, and finally the protective netting is locked and fixed with screws. The height of the first flange 4 of the protective netting, a, must be less than the distance b between the fourth flange 8 and the back plate 6. The lateral distance c between the front end of the second flange 11 and the back of the first reinforcing rib must be less than the vertical distance d between the inclined surface 10 and the fourth flange 8, and also less than the distance A between the bottom end of the fourth flange 8 and the inclined surface 10. The fitting gap between each flange needs to be controlled within a reasonable range to ensure a stable connection without affecting the ease of assembly.
[0053] This structural design, through an innovative flanged nesting method, effectively improves the rigidity of the protective net and back plate 6 without increasing the material thickness. At the same time, the multi-point contact structure significantly reduces vibration transmission and operating noise.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A protective screen, characterised in that, include: The mesh body (3) has a multi-level bending flange on its rear side edge. The multi-level bending flange includes multiple flanges connected in sequence, and two adjacent flanges are set at an angle. At least one of the flanges is provided with a boss, the boss forming a first reinforcing rib (5), the first reinforcing rib (5) extending along the length direction of the multi-level bending flange.
2. The protective screen of claim 1, wherein, The edges of the mesh body (3) other than the rear edge are provided with downward folded edges (2).
3. A shield according to claim 1 or 2, characterised in that, The multi-level bending flange includes a first flange (4) that starts from the rear edge of the mesh body (3) and folds upward, and a second flange (11) that folds forward is provided at the top of the first flange (4). The first flange (4) is provided with a first reinforcing rib (5) protruding in the front-back direction.
4. The shield according to claim 3, wherein The first reinforcing rib (5) is formed by protruding from the front surface of the first flange (4) to the rear surface.
5. An integrated hob, characterized in that Includes the protective netting described in any one of claims 1-4.
6. An integrated hob, characterized in that Includes the protective netting as described in claim 4; The integrated stove also includes a back panel (6), on which a folded edge structure is provided, and the first folded edge (4) and the second folded edge (11) are nested within the folded edge structure.
7. The integrated cooktop of claim 6, wherein, The folded edge structure includes a third folded edge (7) that starts from the top of the back plate (6) and folds forward, and the front end of the third folded edge (7) is provided with a fourth folded edge (8) that folds downward. An opening is formed between the bottom end of the fourth flange (8) and the back plate (6); The back plate (6) is provided with a forward-protruding second reinforcing rib (9), which is located below the opening, and the side of the second reinforcing rib (9) facing the opening forms a limiting surface, which is used to support the protective net.
8. The integrated cooktop of claim 7, wherein, The limiting surface is an inclined plane (10) that is tilted relative to the horizontal plane, and the inclined plane (10) tilts upward from front to back.
9. The integrated cooktop of claim 8, wherein, The top surface of the second flange (11) is in contact with the bottom surface of the third flange (7); The back side of the first reinforcing rib (5) is in contact with the front side of the back plate (6); The inflection point formed between the mesh (3) and the first flange (4) contacts the inclined surface (10).
10. The integrated cooktop of claim 9, wherein, The distance between the bottom end of the fourth flange (8) and the inclined surface (10) is A, the height of the first flange (4) is a, the distance between the fourth flange (8) and the back plate (6) is b, the lateral distance between the front end of the second flange (11) and the back of the first reinforcing rib (5) is c, and the vertical distance between the inclined surface (10) and the fourth flange (8) is d. a is less than b, c is less than d, and c is less than A.