A sealed assembly of a warming tray

Abstract

The utility model discloses a sealing assembly structure of warm plate belongs to the technical field of warm plate, including the backing plate, is provided with the heating wire and the power control box on the backing plate, is provided with the assembly opening on the backing plate, and the blocking edge convex strip is set respectively on the upper and lower positions of assembly opening, and the power control box includes upper casing and lower casing, is provided with the upper recess on the upper casing, is provided with the lower recess on the lower casing, and the upper casing and lower casing are located respectively on the upper and lower positions of assembly opening, and the clamping backing plate is in the assembly, and the blocking edge convex strip is sealed and is arranged in the upper recess and the lower recess, and is provided with the main control board between the upper casing and lower casing, and the main control board is electrically connected with the heating wire. The backing plate, the upper casing and the lower casing can be sealed and matched, the blocking edge convex strip can effectively block the liquid between the upper casing and the lower casing, avoid the problem that the liquid contacts the main control board and the heating wire and causes the damage of both when using the warm plate, and improve the use safety of the warm plate.

Description

Technical Field

[0001] This utility model relates to the field of food warming board technology, specifically a sealed assembly structure for a food warming board. Background Technology

[0002] Chinese utility model patent CN202222776663.5 discloses a heating structure for a flexible food warmer. Its second end plate includes a second upper end plate and a second lower end plate that overlap each other. The second upper end plate and the second lower end plate can be assembled using conventional methods such as screws. After they overlap, they clamp the end of the flexible heating pad body within them. The control component is arranged adjacent to the end of the flexible heating pad body. The second upper end plate and the second lower end plate, while clamping the end of the flexible heating pad body, also cover the exposed heating wires. However, during use, the liquid from the food being kept warm easily seeps out and drips onto the flexible heating pad body. This seeping liquid can enter the control component through the gap between the second upper end plate and the second lower end plate, causing damage to the heating wires and the control component. Therefore, further improvement is necessary. Utility Model Content

[0003] The present invention aims to provide a sealed assembly structure for a food warmer to overcome the shortcomings of the prior art.

[0004] A sealing assembly structure for a food warmer designed for this purpose includes a pad, on which a heating wire and a power control box are mounted. The pad has an assembly opening, and there are retaining strips at the top and bottom of the assembly opening. The power control box includes an upper shell and a lower shell. The upper shell has an upper groove, and the lower shell has a lower groove. The upper and lower shells are located at the top and bottom of the assembly opening, respectively, and clamp the pad during assembly. The retaining strips are sealed and locked in the upper and lower grooves. A main control board is located between the upper and lower shells and is electrically connected to the heating wire.

[0005] The flange protrusion is annularly protruding at the upper and lower positions around the assembly opening.

[0006] The upper groove is recessed on the outer side of the bottom of the upper housing, corresponding to the shape of the edge protrusion, and the lower groove is recessed on the outer side of the top of the lower housing, corresponding to the shape of the edge protrusion.

[0007] The upper shell, lower shell, and pad are fixed to each other by fasteners or buckles.

[0008] The upper housing has an upper housing fastening part at the bottom and a lower housing has a lower housing fastening part at the top. A clearance part is provided on the pad. The upper housing fastening part and the lower housing fastening part are aligned through the clearance part and fixed to each other by fasteners.

[0009] The clearance part is a clearance hole located inside the edge protrusion and extends through the pad plate from top to bottom.

[0010] The upper housing fastening part is a fastening protrusion located inside the upper groove and extending towards the clearance part. The lower housing fastening part is a fastening hole located inside the lower groove and penetrating the lower housing vertically. The upper housing fastening part passes through the clearance part and is aligned with the lower housing fastening part. The fasteners sequentially fasten the lower housing fastening part and the upper housing fastening part.

[0011] The heating wire is wound on the pad, and the pad, or the upper shell, or the lower shell is also provided with a heating wire through hole. The end of the heating wire extends into the space between the upper shell and the lower shell through the heating wire through hole and is electrically connected to the main control board.

[0012] The main control board is also electrically connected to a power connector, which is fixedly located between the upper and lower housings. A power port is also provided between the upper and lower housings corresponding to the power connector.

[0013] The pad is made of a single piece of high-temperature resistant soft material.

[0014] This invention features raised edge strips at the top and bottom of the assembly opening of the pad, and upper and lower grooves on the upper and lower housings, respectively. The assembly of the upper and lower housings not only clamps and fixes the pad but also seals the raised edge strips within the upper and lower grooves, creating a tight seal between the pad, upper housing, and lower housing. The raised edge strips effectively prevent liquid from entering between the upper and lower housings, thus avoiding liquid contact with the main control board and heating wire during use and preventing damage to both, thereby improving the safety of the food warmer. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the assembly structure of an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the assembly cross-sectional structure of an embodiment of the present invention.

[0018] Figure 4 for Figure 3 A magnified structural diagram at point A in the diagram.

[0019] Figure 5 This is a partially enlarged structural diagram of the pad.

[0020] Figure 6 This is a schematic diagram of the upper shell structure.

[0021] Figure 7 This is a schematic diagram of the lower shell structure. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See Figures 1-7 The sealed assembly structure of this food warmer includes a pad 1, on which a heating wire 2 and a power control box are mounted. The pad 1 has an assembly opening 1.1, and the assembly opening 1.1 has a retaining strip 1.2 at its upper and lower positions. The power control box includes an upper shell 3 and a lower shell 4. The upper shell 3 has an upper groove 3.1, and the lower shell 4 has a lower groove 4.1. The upper shell 3 and the lower shell 4 are located at the upper and lower positions of the assembly opening 1.1, respectively, and clamp the pad 1 during assembly. The retaining strip 1.2 is sealed and locked in the upper groove 3.1 and the lower groove 4.1. A main control board 5 is located between the upper shell 3 and the lower shell 4, and the main control board 5 is electrically connected to the heating wire 2.

[0025] The mounting opening 1.1 of the pad 1 is provided with a retaining strip 1.2 at the upper and lower positions, and an upper groove 3.1 and a lower groove 4.1 are provided on the upper shell 3 and the lower shell 4, respectively. The assembly between the upper shell 3 and the lower shell 4 can not only clamp and fix the pad 1, but also seal the retaining strip 1.2 in the upper groove 3.1 and the lower groove 4.1, so that the pad 1, the upper shell 3 and the lower shell 4 form a sealed fit. The retaining strip 1.2 can effectively block the liquid from entering between the upper shell 3 and the lower shell 4, thereby avoiding the problem of liquid contacting the main control board 5 and the heating wire 2 during use and causing damage to them, thus improving the safety of the warming board.

[0026] The flange protrusion 1.2 is annularly protruding at the upper and lower periphery of the assembly opening 1.1.

[0027] Since the flange 1.2 is arranged in a ring shape at the upper and lower positions of the assembly opening 1.1, it can block the outer perimeter of the assembly opening 1.1 and prevent liquid from entering the assembly opening 1.1.

[0028] The upper groove 3.1 is recessed on the outer side of the bottom of the upper housing 3, corresponding to the shape of the side flange 1.2. The lower groove 4.1 is recessed on the outer side of the top of the lower housing 4, corresponding to the shape of the side flange 1.2.

[0029] The upper groove 3.1 and lower groove 4.1 can be shaped to match the shape of the side flange 1.2, which is then completely sealed within the upper groove 3.1 and lower groove 4.1. Furthermore, multiple upper grooves 3.1 and lower grooves 4.1 can be provided, spaced apart along the outer bottom of the upper housing 3 and the outer top of the lower housing 4. Partial positions of the side flange 1.2 can be sealed within these multiple upper grooves 3.1 and lower grooves 4.1.

[0030] The upper shell 3, the lower shell 4, and the pad 1 are fixed together by fasteners or clips.

[0031] Specifically, the upper housing 3 is provided with an upper housing fastening part 3.2 at the bottom, the lower housing 4 is provided with a lower housing fastening part 4.2 at the top, and the pad 1 is provided with a clearance part 1.3. The upper housing fastening part 3.2 and the lower housing fastening part 4.2 are aligned with each other through the clearance part 1.3 and are fixed to each other by fasteners.

[0032] The clearance part 1.3 is a clearance hole, located inside the flange protrusion 1.2, and passes through the pad 1 vertically.

[0033] The upper housing fastening part 3.2 is a fastening protrusion located inside the upper groove 3.1 and extending towards the relief part 1.3. The lower housing fastening part 4.2 is a fastening hole located inside the lower groove 4.1 and extending through the lower housing 4 vertically. The upper housing fastening part 3.2 passes through the relief part 1.3 and is aligned with the lower housing fastening part 4.2. The fasteners sequentially fasten the lower housing fastening part 4.2 and the upper housing fastening part 3.2.

[0034] Fasteners can be used to fix the upper housing 3, the pad 1 and the lower housing 4, resulting in a stable assembly and a simple structure.

[0035] A shielding gasket 7 is also provided on the fastening part 4.2 of the lower housing. The shielding gasket 7 can not only shield the fasteners, but also support the power control box, thereby improving the stability of the cooking plate.

[0036] Heating wire 2 is wound on pad 1. Pad 1, or upper housing 3, or lower housing 4 is also provided with heating wire through hole 1.4. The end of heating wire 2 extends into the space between upper housing 3 and lower housing 4 through heating wire through hole 1.4 and is electrically connected to main control board 5.

[0037] The heating wire through hole 1.4 is provided on the pad 1 so that the end of the heating wire through hole 1.4 can extend between the upper housing 3 and the lower housing 4, thereby realizing the electrical control connection between the main control board 5 and the heating wire 2. The wound heating wire 2 can make the overall temperature of the pad 1 uniform during operation.

[0038] The main control board 5 is also electrically connected to a power connector 6. The power connector 6 is fixedly installed between the upper housing 3 and the lower housing 4. A power port is also provided between the upper housing 3 and the lower housing 4 corresponding to the power connector 6.

[0039] Specifically, the upper shell 3 is provided with the upper shell assembly part 3.3, and the lower shell 4 is provided with the lower shell assembly part 4.3. The upper shell assembly part 3.3 and the lower shell assembly part 4.3 correspond to each other, and the power connector 6 is positioned and assembled between the upper shell assembly part 3.3 and the lower shell assembly part 4.3.

[0040] The upper housing 3 is also provided with an upper housing side opening 3.4, and the lower housing 4 is provided with a lower housing side opening 4.4. The upper housing side opening 3.4 is located on one side of the upper housing assembly part 3.3, and the lower housing side opening 4.4 is located on one side of the lower housing assembly part 4.3. The power connection port of the power connector 6 is exposed to the power control box through the upper housing side opening 3.4 and the lower housing side opening 4.4, so that the power connector 6 can be connected to the power cord.

[0041] The pad 1 is made of a single piece of high-temperature resistant soft material.

[0042] Preferably, the pad 1 is made of silicone material in one piece, which can be rolled up by the user when not in use for easy storage.

[0043] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A sealed assembly structure for a food warmer, comprising a pad (1), on which a heating wire (2) and a power control box are disposed, characterized in that: The pad (1) is provided with an assembly opening (1.1), and the assembly opening (1.1) is provided with a retaining strip (1.2) at the upper and lower positions respectively. The power control box includes an upper shell (3) and a lower shell (4). The upper shell (3) is provided with an upper groove (3.1), and the lower shell (4) is provided with a lower groove (4.1). The upper shell (3) and the lower shell (4) are located at the upper and lower positions of the assembly opening (1.1) respectively and clamp the pad (1) during assembly. The retaining strip (1.2) is sealed and clamped in the upper groove (3.1) and the lower groove (4.1). The main control board (5) is provided between the upper shell (3) and the lower shell (4). The main control board (5) is electrically connected to the heating wire (2).

2. The sealing assembly structure of the food warmer according to claim 1, characterized in that: The flange protrusion (1.2) is annularly protruding at the upper and lower positions of the outer periphery of the assembly opening (1.1).

3. The sealing assembly structure of the food warmer according to claim 2, characterized in that: The upper groove (3.1) is recessed on the outer side of the bottom of the upper shell (3) in the shape of the side flange (1.2), and the lower groove (4.1) is recessed on the outer side of the top of the lower shell (4) in the shape of the side flange (1.2).

4. The sealing assembly structure of the food warmer according to claim 1, characterized in that: The upper housing (3), lower housing (4), and pad (1) are fixed to each other by fasteners or buckles.

5. The sealing assembly structure of the food warmer according to claim 4, characterized in that: The upper housing (3) is provided with an upper housing fastening part (3.2) at the bottom, the lower housing (4) is provided with a lower housing fastening part (4.2) at the top, and the pad (1) is provided with a clearance part (1.3). The upper housing fastening part (3.2) and the lower housing fastening part (4.2) are aligned with each other through the clearance part (1.3) and are fixed to each other by fasteners.

6. The sealing assembly structure of the food warmer according to claim 5, characterized in that: The clearance part (1.3) is a clearance hole and is located inside the side flange protrusion (1.2), and passes through the pad plate (1) from top to bottom.

7. The sealing assembly structure of the food warmer according to claim 6, characterized in that: The upper housing fastening part (3.2) is a fastening protrusion located inside the upper groove (3.1) and extending towards the relief part (1.3). The lower housing fastening part (4.2) is a fastening hole located inside the lower groove (4.1) and extending through the lower housing (4) vertically. The upper housing fastening part (3.2) passes through the relief part (1.3) and is aligned with the lower housing fastening part (4.2). The fasteners sequentially fasten the lower housing fastening part (4.2) and the upper housing fastening part (3.2).

8. The sealing assembly structure of the food warmer according to claim 1, characterized in that: The heating wire (2) is wound on the pad (1). The pad (1), or the upper shell (3), or the lower shell (4) is also provided with a heating wire through hole (1.4). The end of the heating wire (2) extends into the space between the upper shell (3) and the lower shell (4) through the heating wire through hole (1.4) and is electrically connected to the main control board (5).

9. The sealing assembly structure of the food warmer according to claim 1, characterized in that: The main control board (5) is also electrically connected to a power connector (6), which is fixedly installed between the upper housing (3) and the lower housing (4). A power port is also provided between the upper housing (3) and the lower housing (4) corresponding to the power connector (6).

10. The sealing assembly structure of the food warmer according to claim 1, characterized in that: The pad (1) is made of a single piece of high-temperature resistant soft material.

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