A metal can for microwave heating

Abstract

The utility model provides a kind of metal cans for microwave heating, including can body and by the sparkproof base of elastic plastic, the accommodating cavity of upper end opening is equipped in the inside of sparkproof base;Accommodating cavity inside wall is equipped with fixed support structure and adjustable support structure;Fixed support structure is located below adjustable support structure;When adjustable support structure is concave, the support surface of flatness is formed in top portion, the utility model does not need to develop special base, can be adapted to different height, diameter specification's metal cans, substantially improve product versatility, solve the problem that traditional technology is difficult to compatible multiple categories of cans, meet the demand of industry to high adaptability, safe and reliable microwave heating cans matching assembly, while save the step of consumer transfer food material, improve the convenience of microwave heating use.

Description

Technical Field

[0001] This utility model relates to the technical field of metal cans, and in particular to a metal can that can be used for microwave heating. Background Technology

[0002] Metal cans are widely used in ready-to-eat food packaging due to their excellent sealing, corrosion resistance, and long shelf life. However, the strong conductivity of metal makes them unsuitable for microwave ovens. When heated directly, the free electrons on the metal surface are easily sparked by microwaves, which may damage the microwave oven or even cause a fire. Therefore, if consumers want to heat food in a microwave oven, they still need to pour the food into a microwaveable container for heating. This process is cumbersome, carries the risk of spillage and contamination, and affects the quality of the food.

[0003] To address this issue, the industry has developed a microwave heating base for metal cans with a spark-proof lid: the spark-proof lid is made of plastic and uses a support structure to create a gap between the can and the bottom of the microwave oven, dispersing microwave energy and suppressing spark generation. However, existing technology has significant limitations: the differences in moisture content and density among different canned ingredients result in varying microwave heating times and power requirements. If these parameters are not matched, the ingredients may overheat or remain undercooked. Therefore, spark-proof caps need to be custom-designed and bundled with the specific ingredients and dimensions of the canned goods. This model presents two major problems: First, companies need to develop multiple product models, increasing costs for molds, production lines, etc. Secondly, the product has extremely poor versatility and cannot be compatible with different types and sizes of canned goods. This not only imposes an additional economic burden on consumers but also limits its market promotion and makes it difficult to meet the industry's demand for low-cost, highly adaptable microwave-heated canned goods components.

[0004] In view of this, the inventors specifically designed a metal can that can be used for microwave heating, and this invention arises from this. Utility Model Content

[0005] To solve the above problems, the technical solution of this utility model is as follows: A metal can for microwave heating includes a can body and a spark-resistant base made of elastic plastic, wherein the spark-resistant base has an inner cavity with an opening at the top. The inner wall of the accommodating cavity is provided with a fixed support structure and an adjustable support structure, which are used to support the can body at different heights along the axial direction of the accommodating cavity. The fixed support structure is located below the adjustable support structure; The adjustable support structure can be pressed to be recessed into the accommodating cavity or protruded outwards towards the outside of the spark-proof base, and when it is recessed, a flat support surface is formed at the top.

[0006] Preferably, the adjustable support structure is evenly arranged on the same horizontal plane around the side wall of the spark-proof base, and at least three of them are provided.

[0007] Preferably, five adjustable support structures are evenly arranged on the same horizontal plane surrounding the side wall of the spark-proof base.

[0008] Preferably, the adjustable support structure includes a horizontal support section, an inclined support section, and a connecting section. The horizontal support section is located on the upper side. The upper side of the inclined support section is integrally connected to the horizontal support section, and its lower side is integrally connected to the side wall of the spark-proof base. The connecting section is located on both sides of the horizontal support section and the inclined support section and extends integrally to the side wall of the spark-proof base, for sealing the side gaps connecting the horizontal support section and the inclined support section.

[0009] Preferably, the horizontal support section, the inclined support section, and the sidewalls at corresponding positions of the spark-proof base form a support shape with a triangular cross-section.

[0010] Preferably, the fixed support structure is an annular stepped surface surrounding the accommodating cavity.

[0011] Preferably, the sidewall of the spark-proof base is inclined and its opening size gradually increases along the direction approaching the opening of the receiving cavity.

[0012] Preferably, the adjustable support structure is provided at multiple horizontal heights along the side wall extension direction of the spark-proof base.

[0013] Preferably, the bottom of the spark-proof base is recessed inward to form several inner grooves that extend into the receiving cavity, and the adjacent inner grooves and the outer side wall of the spark-proof base form a support unit.

[0014] Preferably, five grooves are evenly distributed around the periphery of the spark-proof base.

[0015] The beneficial effects of this utility model are as follows: This invention features a fixed support structure and an adjustable support structure within the accommodating cavity of a spark-proof base. The adjustable support structure can be pressed to create an inward or outward convex shape, supporting the can body at different axial heights within the accommodating cavity. Compared to existing technologies that require customized design and bundled sales for specific cans, this solution eliminates the need to develop dedicated bases for different cans, significantly improving product versatility. It effectively solves the problem of traditional technologies being incompatible with various types and sizes of cans, meeting the industry's demand for highly adaptable microwave-heated canned food components.

[0016] On the one hand, because the spark-proof base of this utility model has wide compatibility, enterprises do not need to develop multiple models of products for different cans, reducing investment in mold development, production line adjustment and other aspects, and significantly reducing production and manufacturing costs; on the other hand, consumers do not need to buy special bases for different cans, avoiding additional economic burden, increasing market acceptance of the product, and facilitating its large-scale promotion and application.

[0017] Furthermore, the adjustable support structure allows for flexible adjustment of the distance between the can and the bottom of the microwave oven by changing the height of the can within the container cavity. This adapts to the different heating parameters required for various ingredients due to variations in moisture and density, resulting in more precise distribution of microwave energy and preventing localized microwave concentration. Simultaneously, the combination of the fixed and adjustable support structures ensures the can remains stable during heating, reducing uneven heating caused by can movement. This not only suppresses sparks generated by the interaction of the metal can with the microwave oven, protecting the microwave from damage, but also prevents "localized overheating and carbonization" or "undercooked centers," balancing heating safety with the taste and quality of the food.

[0018] In particular, the adjustable support structure features a simple and easy-to-use press-to-adjust mechanism. Users can quickly adjust the support height according to the size of the can without the need for additional tools, ensuring a proper fit between the can and the base. Furthermore, metal cans can be directly placed on the spark-proof base for microwave heating, eliminating the need to transfer food to other containers as in traditional methods. This avoids the risk of food spillage and contamination, significantly improving user convenience and experience.

[0019] In addition, the adjustable support structure adopts a design that integrates the horizontal support section, the inclined support section and the connecting section. The three sections, together with the side wall of the spark-proof base, form a support shape with a triangular cross section. The triangular structure has excellent stability and can provide a solid support for the can body, preventing the can from tipping over during the heating process.

[0020] Furthermore, when multiple sets of adjustable support structures are installed at different horizontal heights along the side wall of the spark-proof base, multi-point and multi-height support adjustment can be achieved for the can body. This allows for more precise adaptation to cans with special height specifications, further expanding the product's compatibility and highlighting the base's versatility. In addition, the design of the inner groove and support unit at the bottom of the spark-proof base enhances the structural strength of the base itself and further optimizes the dispersion of microwave energy, ensuring heating safety.

[0021] In summary, this utility model eliminates the need for developing a dedicated base, making it compatible with metal cans of different heights and diameters. This significantly improves product versatility, solves the problem of traditional technologies being unable to be compatible with various types of canned goods, meets the industry's demand for highly adaptable and reliable microwave-heated canned food components, and eliminates the need for consumers to transfer food, thus enhancing the convenience of microwave heating. Attached Figure Description

[0022] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0023] in: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the usage state of this utility model; Figure 3 This is a three-dimensional structural diagram of the adjustable support structure of the spark-proof base in this utility model, which is in a concave state. Figure 4 This is a partial cross-sectional view of the adjustable support structure of the spark-proof base in this utility model, which is in a concave state. Figure 5 This is a three-dimensional structural diagram of the adjustable support structure of the spark-proof base in this utility model, which is in a convex state. Figure 6 This is a side view of the adjustable support structure of the spark-proof base in this utility model, showing it in a convex state. Figure 7 This is a partial cross-sectional view of the adjustable support structure of the spark-proof base in this utility model, which is in an outward convex state. Figure 8 This is a partial cross-sectional view of the structure highlighting multiple adjustable support structures in this utility model; Figure 9 This is a bottom view of the structure of the recessed groove and support unit in this utility model.

[0024] Label Explanation: 100. Can body; 200. Spark-proof base; 300. Receptacle cavity; 400. Fixed support structure; 410. Annular stepped surface; 500. Adjustable support structure; 510. Horizontal support section; 520. Inclined support section; 530. Connecting section; 600. Inner groove; 610. Support unit. Detailed Implementation

[0025] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] Please see Figures 1 to 9 This is a preferred embodiment of the present invention, a microwave-heatable metal can, comprising a can body 100 and a spark-resistant base 200 made of elastic plastic. The spark-resistant base 200 has an inner cavity 300 with an open top, as detailed below: like Figure 3 , 4 As shown in Figure 5, the spark-proof base 200 is generally disc-shaped, with a disc-shaped receiving cavity 300 formed on its inner side. The inner wall of the receiving cavity 300 is provided with a fixed support structure 400 and an adjustable support structure 500, which are used to support the can body 100 at different heights along the axial direction of the receiving cavity 300.

[0027] In this embodiment, the fixed support structure 400 is located below the adjustable support structure 500.

[0028] Specifically, the fixed support structure 400 is an annular stepped surface 410 surrounding the accommodating cavity 300, thereby forming the bottom support to accommodate the heating of cans of the corresponding specifications.

[0029] In this embodiment, the adjustable support structure 500 can be pressed to be recessed toward the receiving cavity 300 or protruded toward the outside of the spark-proof base 200, and when it is recessed, a flat support surface is formed at the top.

[0030] Specifically, the adjustable support structure 500 is formed by protruding to one side from the side wall of the accommodating cavity 300, and includes a horizontal support section 510, an inclined support section 520, and a connecting section 530. The horizontal support section 510 is located on the upper side, and its inner side is integrally connected to the side wall of the accommodating cavity 300. The upper side of the inclined support section 520 is integrally connected to the other side of the horizontal support section 510, and its lower side is integrally connected to the side wall of the spark-proof base 200. The connecting section 530 is located on both sides of the horizontal support section 510 and the inclined support section 520 and integrally extends to the side wall of the spark-proof base 200, and is used to seal the side gaps connecting the horizontal support section 510 and the inclined support end.

[0031] Thus, a triangular cross-section support shape is formed by the combination of the horizontal support section 510, the inclined support section 520, and the side walls at corresponding positions of the spark-proof base 200 (in conjunction with...). Figure 3The horizontal support section 510 forms a stable support structure, which supports the bottom of the can by utilizing the flat support surface formed by the horizontal support section 510. By using the adjustable support structure 500 at different positions, it can be adapted to the microwave heating process of cans with different heating requirements.

[0032] At this time, when the adjustable support structure 500 supports the can, it is in a concave shape facing the inner side of the receiving cavity 300. The support surface is formed on the upper side of the horizontal support section 510. When the adjustable support structure 500 does not need to be activated, it can be turned to bulge outwards from the inner side of the receiving cavity 300 by applying force from within (e.g., ...). Figure 5 , 6 As shown in Figures 7 and 8, this avoids interfering with the fixed support structure 400's support of the bottom of the can.

[0033] Furthermore, five adjustable support structures 500 are evenly arranged on the same horizontal plane surrounding the side wall of the spark-proof base 200.

[0034] Preferably, in this embodiment, the sidewall of the spark-proof base 200 is inclined and its opening size gradually increases along the direction close to the opening of the receiving cavity 300.

[0035] Preferred, such as Figure 8 As shown, the adjustable support structure 500 is provided at multiple horizontal heights along the side wall extension direction of the spark-proof base 200.

[0036] In this embodiment, two sets are provided, distributed vertically. When multiple sets of adjustable support structures 500 are set at different horizontal heights along the side wall of the spark-proof base 200, the can body 100 can be supported and adjusted at multiple points and heights. This allows for more precise adaptation to cans with special height specifications, further expanding the product's adaptability and making the base's versatility more prominent.

[0037] Preferred, combined Figure 9 The bottom of the spark-proof base 200 is recessed inward to form several inner grooves 600 that extend into the receiving cavity 300. The adjacent inner grooves 600 and the outer side wall of the spark-proof base 200 enclose each other to form a support unit 610.

[0038] In this embodiment, five grooves 600 are evenly provided around the periphery of the spark-proof base 200.

[0039] The design of the inner groove 600 and support unit 610 at the bottom of the spark-proof base 200 not only enhances the structural strength of the base itself, but also further optimizes the dispersion of microwave energy, thus further ensuring heating safety.

[0040] The beneficial effects of this utility model are as follows: This invention provides a fixed support structure 400 and an adjustable support structure 500 within the cavity 300 of the spark-proof base 200. The adjustable support structure 500 can be pressed to be concave or convex, supporting the can body 100 at different axial heights within the cavity 300. Compared to existing technologies that require customized design and bundled sales for specific cans, this solution eliminates the need to develop dedicated bases for different cans, significantly improving product versatility. It effectively solves the problem of traditional technologies being incompatible with various types and sizes of cans, meeting the industry's demand for highly adaptable microwave-heated canned food components.

[0041] On the one hand, because the spark-proof base 200 of this utility model has wide applicability, enterprises do not need to develop multiple models of products for different cans, reducing investment in mold development, production line adjustment and other aspects, and significantly reducing production and manufacturing costs; on the other hand, consumers do not need to buy special bases for different cans, avoiding additional economic burden, increasing market acceptance of the product, and facilitating its large-scale promotion and application.

[0042] Furthermore, the adjustable support structure 500, by adjusting the height of the can body 100 within the accommodating cavity 300, can flexibly change the distance between the can and the bottom of the microwave oven according to the needs of different ingredients (requiring different heating parameters due to differences in moisture and density), thus more precisely distributing microwave energy and avoiding localized microwave concentration. Simultaneously, the cooperation between the fixed support structure 400 and the adjustable support structure 500 ensures the can remains stable during heating, reducing uneven heating caused by can movement. This not only suppresses sparks generated by the interaction of the metal can with the microwave oven, protecting the microwave oven from damage, but also prevents "localized overheating and carbonization" or "undercooked center" of the food, balancing heating safety with the taste and quality of the food.

[0043] In particular, the adjustable support structure 500 features a simple and easy-to-use press-type adjustment mechanism. Users can quickly adjust the support height according to the size of the can without the need for additional tools, ensuring a proper fit between the can and the base. Simultaneously, metal cans can be directly placed on the spark-proof base 200 for microwave heating, eliminating the need to transfer food to other containers as in traditional methods. This avoids the risk of food spillage and contamination, significantly improving user convenience and experience.

[0044] In addition, the adjustable support structure 500 adopts a design in which the horizontal support section 510, the inclined support section 520 and the connecting section 530 are integrally formed, and the three together with the side wall of the spark-proof base 200 form a support shape with a triangular cross section. The triangular structure has excellent stability and can provide a solid support for the can body 100 to prevent the can from tipping over during the heating process.

[0045] Furthermore, when multiple sets of adjustable support structures 500 are installed at different horizontal heights along the side wall of the spark-proof base 200, the can body 100 can be supported and adjusted at multiple points and heights. This allows for more precise adaptation to cans of special height specifications, further expanding the product's adaptability and highlighting the base's versatility. In addition, the design of the inner groove 600 at the bottom of the spark-proof base 200 and the support unit 610 not only enhances the structural strength of the base itself but also further optimizes the dispersion of microwave energy, further ensuring heating safety.

[0046] In summary, this utility model eliminates the need for developing a dedicated base, making it compatible with metal cans of different heights and diameters. This significantly improves product versatility, solves the problem of traditional technologies being unable to be compatible with various types of canned goods, meets the industry's demand for highly adaptable and reliable microwave-heated canned food accessories, and eliminates the need for consumers to transfer food, thus enhancing the convenience of microwave heating.

[0047] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A metal can for use in microwave heating, comprising a can body (100) and a spark-proof base (200) made of an elastic plastic, characterized in that, The spark-proof base (200) has an accommodating cavity (300) with an upper opening on its inner side. The inner wall of the accommodating cavity (300) is provided with a fixed support structure (400) and an adjustable support structure (500) for supporting the can body (100) at different heights along the axial direction of the accommodating cavity (300); The fixed support structure (400) is located below the adjustable support structure (500); The adjustable support structure (500) can be pressed to be recessed toward the receiving cavity (300) or protruded toward the outside of the spark-proof base (200), and when it is recessed, a flat support surface is formed at the top.

2. The metal can for use in microwave heating according to claim 1, wherein The adjustable support structure (500) is evenly arranged on the same horizontal plane around the side wall of the spark-proof base (200), and there are at least three of them.

3. A metal can for use in microwave heating according to claim 2, wherein The adjustable support structure (500) has five units evenly arranged on the same horizontal plane surrounding the side wall of the spark-proof base (200).

4. The metal can for use in microwave heating according to claim 1, wherein The adjustable support structure (500) includes a horizontal support section (510), an inclined support section (520), and a connecting section (530). The horizontal support section (510) is located on the upper side. The upper side of the inclined support section (520) is integrally connected to the horizontal support section (510), and its lower side is integrally connected to the side wall of the spark-proof base (200). The connecting section (530) is located on both sides of the horizontal support section (510) and the inclined support section (520) and extends integrally to the side wall of the spark-proof base (200) to seal the side gaps connecting the horizontal support section (510) and the inclined support end.

5. A metal can for use in microwave heating according to claim 4, wherein The horizontal support section (510), the inclined support section (520), and the side walls of the corresponding positions of the spark-proof base (200) enclose each other to form a support shape with a triangular cross section.

6. The metal can for use in microwave heating according to claim 1, wherein The fixed support structure (400) is an annular stepped surface (410) surrounding the accommodating cavity (300).

7. The metal can for use in microwave heating according to claim 1, wherein The sidewall of the spark-proof base (200) is inclined and its opening size gradually increases along the direction close to the opening of the receiving cavity (300).

8. The metal can for use in microwave heating according to claim 1, wherein The adjustable support structure (500) is provided at multiple horizontal heights along the side wall extension direction of the spark-proof base (200).

9. A metal canned food product suitable for microwave heating according to claim 1, characterized in that, The bottom of the spark-proof base (200) is recessed inward to form several inner grooves (600) that extend into the receiving cavity (300). The adjacent inner grooves (600) and the outer side wall of the spark-proof base (200) enclose and form a support unit (610).

10. A metal can for microwave heating according to claim 9, characterized in that, The inner groove (600) is evenly provided in five places around the periphery of the spark-proof base (200).

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