Food heating pad

Abstract

The utility model relates to the technical field of household appliances, in particular to a food heating pad, which comprises a food heating pad main body, one side of the food heating pad main body is connected with a control device, the food heating pad main body comprises an upper surface and a lower surface which are arranged back to back, the lower surface is provided with a strip-shaped boss which protrudes outwards, and the upper surface and the lower surface are connected with the control device. The strip-shaped boss is provided with a second groove which is formed in the direction of the lower surface in a sunken mode, a heating piece is arranged in the second groove, and the heating piece is electrically connected with the control device. A sealing layer is arranged at the position, close to the open end, of the second groove, and the heating piece is sealed in the second groove through the sealing layer; the food heating pad aims at achieving the purposes that the food heating pad can effectively dissipate heat, and meanwhile the light, thin and small structure can be kept so that packaging and transportation can be facilitated.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a food heating pad. Background Technology

[0002] In daily life, people often encounter situations where food gets cold after being prepared but cannot be eaten immediately for various reasons. For example, during family meals, multiple dishes need to be prepared one after another, and the dishes prepared earlier will lose their original heat and taste after being left for a while; or in some special occasions, such as when entertaining guests, chatting and other activities may slow down the pace of the meal, and the food getting cold affects the eating experience. Moreover, repeatedly reheating food is not only troublesome, but may also destroy the nutritional components of food to some extent. To solve the problem of food getting cold easily and meet people's desire to eat hot food at any time, food heating pads have emerged.

[0003] However, the heating part of existing food heating pads is usually a single panel. When such a food heating pad is placed on a table, the panel is in close contact with the table, and the heat at the bottom of the panel cannot be dissipated, causing the area in contact with the table to become too hot. Under prolonged exposure to heat, the contact area may discolor or peel off, affecting the appearance of the table.

[0004] In response, CN 221180227 U discloses a food heating pad, comprising: a food heating pad body, wherein a heat-insulating support block is provided on the bottom surface of the food heating pad body, and a heat dissipation channel communicating with the outside is formed between the heat-insulating support block and the bottom surface of the food heating pad body; a heat dissipation device is provided on the food heating pad body to increase the air flow rate in the heat dissipation channel and reduce the temperature of the bottom of the food heating pad body; by providing multiple mutually spaced and downwardly protruding heat-insulating support blocks on the bottom surface of the food heating pad body, the food heating pad body is suspended on the table by the heat-insulating support blocks, which can prevent the food heating pad body from burning the table; at the same time, the heat dissipation device is provided on the food heating pad body to increase the air flow rate in the heat dissipation channel and reduce the temperature of the bottom of the food heating pad body. The heat dissipation device can increase the air flow rate in the heat dissipation channel and reduce the temperature of the bottom of the food heating pad body. In this way, even if the temperature of the upper surface of the food heating pad body is increased, the food heating pad body will not burn the table, and the food heating pad can heat the food.

[0005] Despite the advancements in this technology, adding a small fan to the flat structure of a food heating pad for heat dissipation is detrimental to the design of a thin and compact food heating pad. Adding a small fan also makes the main structure of the food heating pad thicker, which is not conducive to the packaging and transportation of the food heating pad.

[0006] Therefore, the aforementioned technical problems need to be solved. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology, this utility model proposes a food heating pad, which aims to enable the food heating pad to effectively dissipate heat while maintaining a thin and compact structure for easy packaging and transportation.

[0008] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:

[0009] A food heating pad includes a food heating pad body, a control device connected to one side of the food heating pad body, the food heating pad body including an upper surface and a lower surface arranged opposite to each other, the lower surface having an outwardly protruding strip-shaped boss, the strip-shaped boss having a second groove formed by indentation in the direction of the lower surface, a heating element being arranged in the second groove, the heating element being electrically connected to the control device;

[0010] The second groove has a sealing layer near the open end, which seals the heating element inside the second groove.

[0011] Furthermore, the strip-shaped boss is a continuous strip structure, including a first end and a second end, and between the first end and the second end are several adjacent U-shaped portions, which are arranged side by side and distributed in the effective heating area of ​​the lower surface.

[0012] Furthermore, the sealing layer fills the second groove so that the outward end face of the strip-shaped boss is a flat surface.

[0013] Furthermore, the heating element is a flexible, deformable electric heating wire.

[0014] Furthermore, it also includes multiple heat-insulating support blocks; the multiple heat-insulating support blocks are arranged in an orderly manner at intervals in each of the U-shaped sections; the heat-insulating support blocks in two adjacent U-shaped sections are arranged in a staggered manner.

[0015] Furthermore, the heat-insulating support block has reinforcing ribs;

[0016] The reinforcing ribs are multiple, and two adjacent reinforcing ribs have an included angle;

[0017] The included angle is between 30° and 120°.

[0018] Furthermore, the control device has an upper shell and a lower shell; the upper shell and the lower shell are fastened together to form an assembly cavity for assembling the control circuit board.

[0019] Furthermore, a gap is formed between the upper shell and the lower shell to allow the assembly cavity to communicate with the outside; the food heating pad body has an assembly hole; the inner wall of the assembly hole is provided with a flange arranged circumferentially, and the flange is embedded in the gap to close the assembly cavity.

[0020] Furthermore, the end of the food heating pad facing the control device has a connecting block; the connecting block is embedded between the upper shell and the lower shell.

[0021] Furthermore, the main body of the food heating pad is made of silicone material.

[0022] The beneficial effects of this utility model are:

[0023] This utility model discloses a food heating pad, comprising a food heating pad body, a control device connected to one side of the food heating pad body, and an upper surface and a lower surface arranged opposite to each other. The lower surface has an outwardly protruding strip-shaped boss, and the strip-shaped boss has a second groove formed by indentation towards the lower surface. A heating element is arranged in the second groove, and the heating element is electrically connected to the control device. The second groove has a sealing layer near its open end, which seals the heating element within the second groove. By wrapping each heating element in the strip-shaped boss and then sealing the open end of the strip-shaped boss with the sealing layer, direct contact with the tabletop is avoided, thereby solving the problem of food heating pads in the prior art easily burning the tabletop surface. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0025] Figure 2 This is a schematic diagram of the lower surface structure of Embodiment 1 of this utility model;

[0026] Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the strip-shaped boss in Embodiment 1 of this utility model;

[0028] Figure 5 This is an enlarged view of the structure of the heat insulation support block according to Embodiment 1 of this utility model;

[0029] Figure 6 This is a schematic diagram of the control device according to Embodiment 1 of this utility model;

[0030] Figure 7 This is an exploded view of the food heating pad body and control device according to Embodiment 1 of this utility model;

[0031] Explanation of reference numerals in the attached figures:

[0032] 1-Food heating pad body, 11-Upper surface, 12-Lower surface, 121-Strip boss, 122-Second groove, 123-Insulation support block, 1231-Reinforcing rib, 1232-Included angle, 124-Assembly hole, 1241-Inner wall, 1242-Flange, 125-Connecting block, 1211-First end, 1212-Second end, 1213-U-shaped part, 1221-Open end, 2-Heating element, 3-Sealing layer, 4-Control device, 41-Upper shell, 42-Lower shell, 43-Assembly cavity, D-Gap, A-Airflow channel, B-Airflow channel. Detailed Implementation

[0033] The following will be combined with the appendix Figure 1 To be continued Figure 7 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0034] With the fast pace of modern life and the increasing demands for quality of life, dining scenarios in daily life have become increasingly diverse and complex. In family settings, family members often have different work and study schedules, frequently resulting in situations where meals cannot be eaten together immediately after preparation. For example, working professionals may return home late, while elders have prepared the food in advance, causing it to cool down while waiting. Alternatively, when preparing for family gatherings or holiday meals, multiple dishes need to be cooked, and the process of serving them one by one causes the temperature of the first dishes to drop, affecting their taste and dining experience. Therefore, food heating pads have emerged as a solution.

[0035] However, in existing food heating pads, the heating element is in direct contact with the table surface. The heat at the bottom of the heating element cannot be effectively dissipated, causing the contact area on the table surface to become too hot, which can easily burn the table surface, making it prone to cracking or paint peeling, thus affecting the table surface's appearance.

[0036] like Figures 1 to 3As shown, this technical solution discloses a food heating pad, including a food heating pad body 1 made of silicone material. A control device 4 is connected to one side of the food heating pad body 1. The food heating pad body 1 includes an upper surface 11 and a lower surface 12 arranged opposite to each other. The upper surface 11 is used to hold items to be heated. The lower surface 12 has an outwardly protruding strip-shaped boss 121, and the strip-shaped boss 121 has a second groove 122 formed by indentation towards the lower surface 12. A heating element 2 is arranged in the second groove 122, and the heating element 2 is electrically connected to the control device 4. The second groove 122 has a sealing layer 3 near its open end 1221, which seals the heating element 2 within the second groove 122.

[0037] It should be understood that because the strip-shaped protrusion 121 is higher than the lower surface 12, when the food heating pad is placed on the table, the lower surface 12 does not contact the table surface. At this time, there are many gaps between the food heating pad and the table surface, forming airflow channels that allow the heat generated by the heating element 2 to dissipate. Furthermore, the strip-shaped protrusion 121 encloses the heating element 2 on its inner side, thus allowing some of the heat generated by the heating element 2 during operation to be guided to the outside through the strip-shaped protrusion 121.

[0038] In addition, the heating element 2 is electrically connected to the control device 4 to obtain power and generate self-heating. In this embodiment, the heating element 2 is a flexible deformable electric heating wire or a heating film, which is selected according to the actual use.

[0039] In this embodiment, the sealing layer 3 is thermally conductive silicone. This silicone not only prevents direct contact between the heating element 2 and the tabletop, but also conducts the heat generated by the heating element 2 to the outside. Specifically, in use, the sealing layer 3 fills the second groove 122 so that the outward-facing end face of the strip-shaped protrusion 121 is a flat surface. This design allows the food heating pad to rest stably on the tabletop, and the sealing layer 3 also prevents direct contact between the heating element 2 and the tabletop, effectively avoiding damage to the tabletop caused by the heating element 2 placed in the second groove 122.

[0040] To improve the heat dissipation of the food heating pad, the strip-shaped protrusion 121 is a continuous strip structure, including a first end 1211 and a second end 1212. Between the first end 1211 and the second end 1212 are several adjacent U-shaped portions 1213, which are arranged side-by-side and distributed within the effective heating area of ​​the lower surface 12. It should be noted that the first end 1211 originates at one point along the length of the control device 4 and serves as the current output terminal of the control device 4, while the second end 1212 terminates at another point along the length of the control device 4 and serves as the current input terminal of the control device 4. The strip-shaped protrusion 121 extends from the control device 4 and is arranged evenly and meanderingly on the lower surface 12, with the heating element 2 disposed within the strip-shaped protrusion 121, thereby forming the effective heating area of ​​the food heating pad.

[0041] It should also be noted that the strip-shaped protrusion 121 is a strip structure, and there are several adjacent U-shaped portions 1213 between the first end 1211 and the second end 1212. These several adjacent U-shaped portions 1213 are arranged side by side so that there are gaps between the adjacent heating elements 2 to form an airflow channel A. This can effectively avoid the problem of heat generated by the adjacent heating elements 2 being too concentrated and difficult to dissipate. In addition, the heat generated by the food heating pad 2 can also be dissipated from the airflow channel A, thereby avoiding the temperature of the lower surface 12 being too high.

[0042] Furthermore, in one embodiment of the utility model, such as Figure 4 As shown, the food heating pad also includes multiple heat-insulating support blocks 123; the multiple heat-insulating support blocks 123 are arranged in an orderly manner at intervals in each of the U-shaped portions 1213; the heat-insulating support blocks 123 in two adjacent U-shaped portions 1213 are arranged in a staggered manner.

[0043] In this embodiment, the heat-insulating support block 123 is higher than the strip-shaped protrusion 121, which can further isolate the strip-shaped protrusion 121 from direct contact with the tabletop and prevent the heating element 2 in the strip-shaped protrusion 121 from scorching the tabletop. Furthermore, there are multiple heat-insulating support blocks 123, which are evenly arranged within the U-shaped portion formed by each strip-shaped protrusion 121, so that there are heat-insulating support blocks 123 on both sides of each strip-shaped protrusion 121. The heat-insulating support blocks 123 on both sides form an airflow channel B, which can effectively dissipate the heat of the strip-shaped protrusion 121 located in the heat-insulating support blocks 123 on both sides.

[0044] Furthermore, such as Figure 5As shown, the heat insulation support block 123 has reinforcing ribs 1231; the reinforcing ribs 1231 extend outward from the heat insulation support block 123, and the tops of multiple reinforcing ribs 1231 converge to form a support surface, the purpose of which is to strengthen the support strength of the heat insulation support block 123, so that the food heating pad is more stable when placed on the table.

[0045] Furthermore, the reinforcing ribs 1231 are multiple, and two adjacent reinforcing ribs 1231 have an included angle 1232; the included angle 1232 is between 30° and 120°. This design, with multiple reinforcing ribs 1231, can increase the contact friction between the heat insulation support block 123 and the tabletop, preventing the food heating pad from slipping when placed on the tabletop.

[0046] In a preferred embodiment, the included angle 1232 is 90°, at which point the cross-section of the heat insulation support block 123 is in the shape of a "+", so that each adjacent reinforcing rib 1231 is subjected to equal force, which can more effectively increase the stability of the food heating pad when placed on the table.

[0047] Furthermore, such as Figure 6 As shown, the control device 4 has an upper shell 41 and a lower shell 42; after the upper shell 41 and the lower shell 42 are fastened together, they form an assembly cavity 43 for assembling the control circuit board.

[0048] The control device 4 is connected to the food heating pad body 1, and the control circuit board is electrically connected to the heating element 2, so that the heating element 2 can heat under the control of the control device 4.

[0049] Furthermore, such as Figure 7 As shown, a gap D is formed between the upper shell 41 and the lower shell 42, allowing the assembly cavity 43 to communicate with the outside; the food heating pad body 1 has an assembly hole 124; the inner wall 1241 of the assembly hole 124 is provided with a flange 1242 arranged circumferentially, and the flange 1242 is embedded in the gap D to close the assembly cavity 43.

[0050] This design facilitates the replacement of the food heating pad body 1 or the control device 4 if damage occurs during the use of the food heating pad.

[0051] To make the food heating pad body 1 more securely assembled with the control device 4, a connecting block 125 is provided on the end of the food heating pad facing the control device 4; the connecting block 125 is embedded between the upper shell 41 and the lower shell 42.

[0052] It should also be noted that the first end 1211 of the strip-shaped boss 121 mentioned above starts at one point along the length of the connecting block 125, and the second end 1212 terminates at another point along the length of the connecting block 125. The first end 1211 and the second end 1212 do not coincide. The connecting block 125 is close to the control circuit board. The first end 1211 and the second end 1212 are placed on the connecting block 125 to facilitate the wiring of the heating element 2 and its electrical connection with the control circuit board.

[0053] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A food heating pad, comprising a food heating pad body, wherein a control device is connected to one side of the food heating pad body, and the food heating pad body includes an upper surface and a lower surface arranged opposite to each other, characterized in that: The lower surface has an outwardly protruding strip-shaped boss, and the strip-shaped boss has a second groove formed by indentation in the direction of the lower surface. A heating element is arranged in the second groove, and the heating element is electrically connected to the control device. The second groove has a sealing layer near the open end, which seals the heating element inside the second groove.

2. The food heating pad as described in claim 1, characterized in that: The strip-shaped boss is a continuous strip structure, including a first end and a second end, and a plurality of adjacent U-shaped portions are included between the first end and the second end. The plurality of adjacent U-shaped portions are arranged side by side and distributed in the effective heating area of ​​the lower surface.

3. The food heating pad as described in claim 1, characterized in that: The sealing layer fills the second groove so that the outward end face of the strip boss is a flat surface.

4. A food heating pad as described in claim 1, characterized in that: The heating element is a flexible, deformable electric heating wire.

5. A food heating pad as described in claim 2, characterized in that: It also includes multiple heat-insulating support blocks; Multiple heat-insulating support blocks are arranged at intervals and in an orderly manner in each of the U-shaped sections; The heat-insulating support blocks in two adjacent U-shaped sections are arranged in a staggered manner.

6. A food heating pad as described in claim 5, characterized in that: The heat-insulating support block has reinforcing ribs; The reinforcing ribs are multiple, and two adjacent reinforcing ribs have an included angle; The included angle is between 30° and 120°.

7. A food heating pad as described in claim 1, characterized in that: The control device has an upper shell and a lower shell; The upper shell and the lower shell are fastened together to form an assembly cavity for assembling the control circuit board.

8. A food heating pad as described in claim 7, characterized in that: A gap is formed between the upper shell and the lower shell to allow the assembly cavity to communicate with the outside. The food heating pad body has an assembly hole; The inner wall of the assembly hole is provided with a flange arranged circumferentially, and the flange is embedded in the gap to close the assembly cavity.

9. A food heating pad as described in claim 7, characterized in that: The food heating pad has a connecting block on the end facing the control device; The connecting block is embedded between the upper shell and the lower shell.

10. A food heating pad as described in any one of claims 1-9, characterized in that: The food heating pad is made of silicone material.

Images