hot plate

Abstract

The utility model relates to the technical fields of heating plate, especially a hot dish plate, including frame, backboard, heating plate and electric control assembly, backboard and heating plate are located opposite two sides of frame respectively and form cavity with frame, electric control assembly is arranged in the cavity, its characterized in that, heating plate includes first epoxy glass fiber layer, heating layer, second epoxy glass fiber layer that are sequentially arranged from the cavity to the cavity outside, first epoxy glass fiber layer and second epoxy glass fiber layer all completely cover heating layer and are compounded with heating layer as a whole, and heating layer electrically connected electric control assembly, the hot dish plate provided by the utility model uses multilayer epoxy glass fiber layer sandwiched heating layer as panel, and the thickness can be controlled within 1mm, while the glass material panel and the silica gel material panel in the prior art are generally about 4mm, so the heat conduction of the thinner epoxy glass fiber layer is less blocked, the heating speed is fast, and the panel heating is more uniform.

Description

Technical Field

[0001] This utility model relates to the technical field of heating plates, and in particular to a hot food plate. Background Technology

[0002] As people's living standards improve, the variety and quantity of food at each meal have increased significantly. When cooking, there are not only fresh ingredients bought from the market, but also frozen or refrigerated ingredients taken from the refrigerator, so thawing is necessary. When eating, people are used to preparing all the dishes before starting to eat. However, when there are many dishes, the first dishes prepared will get cold, greatly reducing their flavor. Therefore, it is necessary to heat and keep the dishes warm.

[0003] To enable heating, warming, and defrosting of food, hot cutting boards (also known as food warming boards) were developed. Hot cutting boards offer significant advantages, greatly enhancing the dining experience, especially suitable for winter or family gatherings. Their main functions include adjustable temperature and timed warming; they typically offer multiple temperature settings to cater to different taste preferences; and their timer function ensures that users can enjoy hot meals no matter how busy they are. Compared to microwave ovens, hot cutting boards are also compatible with various cookware materials, including glass, ceramic, stainless steel, and cardboard boxes.

[0004] Currently, hot cutting boards on the market are mainly divided into two types based on the material of the panel: glass and silicone. The heating element inside the board heats the panel, and then the food is heated through contact heat transfer and non-contact heat radiation. However, this method of heating food results in low heat transfer efficiency and a slow heating speed because of the heat conduction barrier between the heating element and the food. In addition, the fragility of glass and the difficulty in cleaning silicone are also significant issues. Utility Model Content

[0005] In view of this, the present invention provides a hot food plate, which aims to solve the problem that the glass and silicone panels of traditional hot food plates greatly hinder the heat conduction of the heating element.

[0006] To solve the above problems, the present invention provides a hot food board, comprising a frame, a back plate, a heating plate, and an electronic control component. The back plate and the heating plate are located on opposite sides of the frame and form a cavity with the frame. The electronic control component is disposed within the cavity. The heating plate comprises a first epoxy fiberglass layer, a heating layer, and a second epoxy fiberglass layer arranged sequentially from the inside of the cavity to the outside of the cavity. The first epoxy fiberglass layer and the second epoxy fiberglass layer completely cover the heating layer and are integrally formed with the heating layer. The heating layer is electrically connected to the electronic control component.

[0007] Optionally, the outer surface of the second epoxy fiberglass layer is covered with a non-stick coating.

[0008] Optionally, the heating layer includes a carbon paste layer and a silver paste layer. The silver paste layer is elongated and disposed on opposite sides of the carbon paste layer and overlaps with the carbon paste layer. The silver paste layer is connected to the electronic control component via a wire.

[0009] Optionally, the outer surface of the second epoxy fiberglass layer is provided with multiple temperature control point fingerprint markings to mark the temperature control point areas.

[0010] Optionally, the projections of the first epoxy fiberglass layer and the second epoxy fiberglass layer onto the back panel completely cover the frame, and the upper surface of the frame is seamlessly bonded to the lower surface of the first epoxy fiberglass layer.

[0011] Optionally, the periphery of the frame is provided with a flange protruding from the upper surface of the frame, the top of the flange contacts the lower surface of the first epoxy fiberglass layer, the flange and the upper surface of the frame form a groove, and a high-temperature resistant adhesive layer is disposed in the groove.

[0012] Optionally, the cavity is filled with a heat-insulating ceramic blanket.

[0013] Optionally, the back plate is fixed with multiple support profiles on the side facing the cavity to support the first epoxy fiberglass layer; the heat insulation ceramic blanket is provided with through grooves to accommodate the support profiles.

[0014] Optionally, the support profile is a C-shaped rod, the upper surface of the support profile is bonded to the lower surface of the first epoxy fiberglass layer with high-temperature resistant adhesive, and the lower surface of the support profile is bonded to the upper surface of the back plate with high-temperature resistant adhesive.

[0015] Optionally, the electronic control component includes a touch component, the touch panel of which is exposed outside the second epoxy fiberglass layer.

[0016] The technical solution of this utility model has the following advantages:

[0017] 1. The heating element is made of multiple layers of epoxy fiberglass sandwiched together as a whole. This type of heating element complies with safety regulations and can be used for heating or as a standalone panel. The thickness can be controlled within 1mm, while the existing glass and silicone panels are generally around 4mm thick. Therefore, the thinner epoxy fiberglass layer has less heat conduction obstruction, faster heating speed, more uniform panel heating, and lower cost.

[0018] 2. An epoxy fiberglass layer composed of epoxy resin and glass fiber is used. The epoxy resin provides the function of sandwiching the two epoxy fiberglass layers into a heating layer and bonding them together under high temperature and high pressure. The glass fiber gives the epoxy fiberglass layer good structural strength, so that it can maintain a flat state to support the food placed on the panel.

[0019] 3. The epoxy resin surface of the panel uses a non-stick coating technology, which prevents food or pots and pans from sticking to the panel after it is heated; in addition, compared with silicone panels, epoxy resin panels are easier to clean and maintain for oil stains and residues that may be accidentally splashed on the panel during use.

[0020] 4. Multiple temperature control point fingerprint markings are printed on the panel to guide users to place food in the temperature control point area. The temperature control point area has a temperature sensor below the temperature control point fingerprint marking. Placing food, plates, or other items on the panel may cause heat to accumulate in that area. Placing items in the temperature control point area first allows the temperature sensor to detect the heat accumulation in time and automatically adjust the temperature of the heating plate to avoid overheating and burning the hot plate, thus playing a protective role. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a top view of the hot food plate in an embodiment of this utility model.

[0023] Figure 2 This is an exploded view of the hot food plate in an embodiment of this utility model.

[0024] Figure 3 This is a perspective view of the hot food plate in an embodiment of this utility model.

[0025] Figure 4 yes Figure 2 Enlarged view of part A.

[0026] In the diagram: 1. Frame, 1a. Flange, 1b. Groove, 1c. Backplate, 2. Heating plate, 3. Electrical control components, 4. Touch panel, 4a. Cavity, 5. First epoxy fiberglass layer, 6. Heating layer, 7. Carbon paste layer, 71. Silver paste layer, 72. Second epoxy fiberglass layer, 8. Temperature control point fingerprint marking, 9. Thermal insulation ceramic blanket, 10. Through groove, 10a. Support profile, 11. Detailed Implementation

[0027] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0028] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0029] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “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 is in use. They are used only for the convenience of description and simplification, 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.

[0030] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0031] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0032] Please refer to Figure 1 and Figure 2 This utility model provides a hot cutting board, including a frame 1 forming a circle, a back plate 2 located on the back of the frame 1, a heating plate 3 located on the front of the frame 1, and an electronic control component 4 located in the cavity 5 formed by the frame 1, the back plate 2 and the heating plate 3.

[0033] Please refer to Figure 2 Specifically, the cross-section of the frame 1 is C-shaped. The frame 1 is formed by bending a C-shaped material and connecting the ends. At the corners where they interfere with each other, a notch 1c is cut out. The upper and lower surfaces of the frame 1 are parallel and are both flat. The upper surface of the back plate 2 is attached to the lower surface of the frame 1 and is connected by screws or glue. The lower surface of the heating plate 3 is bonded to the upper surface of the frame 1 with a high-temperature resistant adhesive layer.

[0034] Please refer to Figure 2The heating plate 3 includes a first epoxy fiberglass layer 6, a heating layer 7, and a second epoxy fiberglass layer 8 arranged sequentially from the inside to the outside. The "inner" refers to the side closer to the cavity 5, and the "outer" refers to the side farther away from the cavity 5. The heating layer 7 is sandwiched between the first epoxy fiberglass layer 6 and the second epoxy fiberglass layer 8. The first epoxy fiberglass layer 6 and the second epoxy fiberglass layer 8 completely cover the heating layer 7, and the three are composited into one unit through high temperature and high pressure, which together serve as the heating core of the hot food plate (i.e., the heating plate 3).

[0035] Please refer to Figure 2 Specifically, both the first epoxy fiberglass layer 6 and the second epoxy fiberglass layer 8 are composed of at least one layer of epoxy fiberglass. Epoxy fiberglass layers of standard thickness can be prefabricated, and a corresponding number of epoxy fiberglass layers can be stacked according to the designed thickness to form the first epoxy fiberglass layer 6 or the second epoxy fiberglass layer 8 of a specified thickness. The first epoxy fiberglass layer 6 and the second epoxy fiberglass layer 8 have the same composition, both consisting of epoxy resin and glass fiber. The glass fiber is uniformly dispersed in the epoxy resin, and the melting temperature of the epoxy resin is much higher than the operating temperature of the heating element. The epoxy fiberglass layer, composed of epoxy resin and glass fiber, allows the epoxy resin to sandwich the two epoxy fiberglass layers into a heating layer and fuse them together under high temperature and pressure. The glass fiber gives the epoxy fiberglass layer good structural strength, enabling it to maintain a flat state and support food placed on the panel.

[0036] The heating layer 7 is an electric heating layer. The heating layer 7 is connected to the electronic control component 4 through wires. The electronic control component 4 has a control chip that can control the heating layer 7 to switch between multiple temperature levels and control the heating time.

[0037] The hot food board proposed in this embodiment solves the problem that the glass and silicone panels of traditional hot food boards significantly hinder heat conduction of the heating element. It adopts a multi-layer epoxy fiberglass core heating layer that is integrated into one piece, serving as the heating core as a whole. This type of heating core complies with safety regulations and can be used for heating or as a standalone panel. The thickness can be controlled within 1mm, while the glass and silicone panels used in the prior art are generally around 4mm thick. Therefore, the thinner epoxy fiberglass layer has less heat conduction obstruction, resulting in faster heating speed, more uniform panel heating, and lower cost.

[0038] Furthermore, the outer surface of the second epoxy fiberglass layer 8 is covered with a non-stick coating, so that even if food or pots and pans are placed on the hot cutting board for a long time, they will not stick to the surface of the board. Moreover, the epoxy resin surface is easier to clean and maintain than silicone material, ensuring the cleanliness of the food or pots and pans and extending the service life of the board.

[0039] Please refer to Figure 2Specifically, the heating layer 7 includes a carbon paste layer 71 and a silver paste layer 72. The carbon paste layer 71 is uniformly printed on the upper surface of the first epoxy fiberglass layer 6 and covers most of the surface of the first epoxy fiberglass layer 6. The silver paste layer 72 is printed and covers the opposite sides of the carbon paste layer 71. The silver paste layer 72 is elongated and serves as an electrode. One end of the silver paste layer 72 extends out of the first epoxy fiberglass layer 6 and is connected to a wire, which is connected to the electronic control component 4. After the electronic control component 4 connects the two silver paste layers 72 to the circuit, current flows through the silver paste layer 72 and through the carbon paste layer 71, thereby heating the carbon paste layer 71. The heat is conducted to the food through the second epoxy fiberglass layer 8 to achieve the heating function.

[0040] Please refer to Figure 2 Furthermore, multiple temperature control point fingerprint markings 9 are printed on the outer surface of the second epoxy fiberglass layer 8 to mark the temperature control point areas. The surface markings guide the user to place food in the temperature control point areas. The temperature control point areas have temperature sensors below the temperature control point fingerprint markings. Placing food, plates, or other items on the panel may cause heat accumulation in that area. Placing items in the temperature control point areas first allows the temperature sensor to detect heat accumulation in time and automatically adjust the temperature of the heating plate to avoid overheating and burning the hot plate, thus playing a protective role.

[0041] Please refer to Figure 3 Furthermore, the projection of the first epoxy fiberglass layer 6 and the second epoxy fiberglass layer 8 onto the back panel 2 (i.e. the projection of the heating plate 3) completely covers the frame 1. This design hides the frame 1 under the panel of the hot food plate, extends the non-heated area of ​​the panel edge to the outside of the frame 1, and also makes it convenient to hold the non-heated panel edge from below, facilitating the transfer of the hot food plate.

[0042] Please refer to the reference. Figure 4 and Figure 2 The upper surface of the frame 1 is seamlessly bonded to the lower surface of the first epoxy fiberglass layer 6. Specifically, the periphery of the frame 1 has a flange 1a protruding from the upper surface of the frame 1. The top of the flange 1a contacts the lower surface of the first epoxy fiberglass layer 6. The flange 1a and the upper surface of the frame 1 form a groove 1b, and a high-temperature resistant adhesive layer is disposed in the groove 1b. The design of the groove 1b prevents the high-temperature resistant adhesive layer from overflowing and becoming thinner, thus reducing the bonding effect.

[0043] Please refer to Figure 2 Furthermore, a heat insulation layer is filled in the cavity 5 formed by the inner side of the frame 1, the lower surface of the heating plate 3 and the upper surface of the back plate 2. The heat insulation layer is preferably a heat insulation ceramic blanket 10. The electrical control component 4 is also embedded in the heat insulation ceramic blanket 10, which reduces the influence of the temperature of the heating plate 3 on the electrical control component 4.

[0044] Please refer to Figure 2Furthermore, multiple support profiles 11 are fixedly provided on the side of the back plate 2 facing the cavity 5. The heat insulation ceramic blanket 10 is provided with a through groove 10a for accommodating the support profiles 11. The support profiles 11 are used to support the first epoxy fiberglass layer 6, so that the heating plate 3 can support heavier food, pots and pans. Specifically, the support profiles 11 are C-shaped rods. The upper surface of the support profiles 11 is bonded to the lower surface of the first epoxy fiberglass layer 6 with high-temperature resistant adhesive, and the lower surface of the support profiles 11 is bonded to the upper surface of the back plate 2 with high-temperature resistant adhesive.

[0045] Please refer to the reference. Figure 1 and Figure 2 Furthermore, the electronic control component 4 includes a touch component, which includes a touch panel 4a. The touch panel 4a is exposed outside the second epoxy fiberglass layer 8 (i.e., outside the heating plate 3). Users can adjust functions such as temperature level and heating time by operating the touch panel 4a with their fingers.

[0046] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A hot plate, comprising a frame, a back plate, a heating plate and an electric control assembly, the back plate and the heating plate are respectively located on opposite sides of the frame and form a cavity with the frame, the electric control assembly is arranged in the cavity, characterized in that, The heating plate includes a first epoxy fiberglass layer, a heating layer, and a second epoxy fiberglass layer arranged sequentially from the inside of the cavity to the outside of the cavity. The first epoxy fiberglass layer and the second epoxy fiberglass layer completely cover the heating layer and are integrated with the heating layer. The heating layer is electrically connected to the electronic control component.

2. The hot plate as claimed in claim 1, characterized in that The outer surface of the second epoxy fiberglass layer is covered with a non-stick coating.

3. The hot plate as defined in claim 1, wherein The heating layer includes a carbon paste layer and a silver paste layer. The silver paste layer is elongated and disposed on opposite sides of the carbon paste layer and overlaps with the carbon paste layer. The silver paste layer is connected to the electronic control component via wires.

4. The hot plate as defined in claim 1, wherein The outer surface of the second epoxy fiberglass layer is marked with multiple temperature control point fingerprints to mark the temperature control point area.

5. The hot plate as defined in claim 1, wherein The projections of the first epoxy fiberglass layer and the second epoxy fiberglass layer onto the back panel completely cover the frame, and the upper surface of the frame is seamlessly bonded to the lower surface of the first epoxy fiberglass layer.

6. The hot plate as claimed in claim 5, characterized in that The periphery of the frame is provided with a flange protruding from the upper surface of the frame. The top of the flange contacts the lower surface of the first epoxy fiberglass layer. The flange and the upper surface of the frame form a groove, and a high-temperature resistant adhesive layer is disposed in the groove.

7. The hot plate of claim 1, wherein The cavity is filled with a heat-insulating ceramic blanket.

8. The hot plate as defined in claim 7, wherein Multiple support profiles are fixedly provided on the side of the back plate facing the cavity to support the first epoxy fiberglass layer; the heat insulation ceramic blanket is provided with a through groove to accommodate the support profiles.

9. The hot plate as defined in claim 8, wherein The supporting profile is a C-shaped rod. The upper surface of the supporting profile is bonded to the lower surface of the first epoxy fiberglass layer with high-temperature resistant adhesive, and the lower surface of the supporting profile is bonded to the upper surface of the back plate with high-temperature resistant adhesive.

10. The hot plate as defined in claim 1, wherein The electronic control component includes a touch component, and the touch panel of the touch component is exposed outside the second epoxy fiberglass layer.

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