Food heating machine

Abstract

This invention discloses a food heating machine, comprising a housing, a first heating element, and a second heating element, which are disposed on opposite sides of the housing. Each heating element includes a substrate, a heating coating, electrodes, and a protective layer. The heating coating is a conductive coating formed on the substrate by vacuum deposition of a semiconductor metal oxide. Electrodes are disposed on opposite sides of the heating coating and connected to a power source. The heating coating generates heat when the electrodes are energized, transferring the heat to the substrate. The protective layer provides a waterproof enclosure for the heating coating and electrodes. The substrates of the first and second heating elements are positioned opposite each other, with the space between them serving as the heating space. This invention can quickly heat and bake food (bread) using indirect electric heating, making it safe and convenient.

Description

Technical Field

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

[0002] The main reasons bread needs to be baked include: during baking, starch gelatinizes, forming an internal structure that is easier to digest. Starch gelatinization not only improves the texture of the bread but also enhances its digestibility. Baking stops yeast from producing gas and deactivates various enzymes, ensuring the bread maintains a stable shape and texture after baking. For bread slices baked in a bread machine, a gelatinized layer forms on the surface. This layer can neutralize stomach acid, inhibit gastric acid secretion, and protect the gastric mucosa, making it especially suitable for people with stomach discomfort. Furthermore, during baking, the internal temperature of the bread generally does not exceed 100℃, while the surface temperature may exceed 100℃, even reaching over 180℃.

[0003] Therefore, a food heating machine for baking bread is needed. Summary of the Invention

[0004] This utility model provides a food heating machine to solve one or more technical problems encountered in the background art.

[0005] In a first aspect, embodiments of this utility model provide a food heating machine, including...

[0006] case;

[0007] A first heating element and a second heating element are disposed on both sides of the housing. Each heating element includes a first substrate, a second substrate, a heating coating, and electrodes. The first substrate and the second substrate are disposed opposite each other and are sealed together at their periphery to form a cavity between them. The cavity is a vacuum chamber. The heating coating is a conductive coating formed on the surface of the second substrate within the cavity by vacuum deposition of a semiconductor metal oxide. The electrodes are disposed on both sides of the heating coating and are connected to a power source. The heating coating generates heat when the electrodes are energized and transfers the heat to the second substrate.

[0008] The second substrate of the first heating element and the second substrate of the second heating element are arranged opposite to each other, and the space formed between the second substrate of the first heating element and the second substrate of the second heating element is the heating space.

[0009] In a preferred embodiment, the first heating element is fixedly connected to the housing, the second heating element is rotatably connected to the housing, the second heating element rotates toward the first heating element to form the heating space, and the second substrates of the first heating element and the second heating element when the second heating element rotates toward the first heating element serve as the inner wall of the heating space.

[0010] In a preferred embodiment, the angle between the second heating element and the first heating element when the second heating element rotates is 0~180°.

[0011] In a preferred embodiment, the light transmittance of the first heating element and the second heating element is not less than 30%, wherein the light transmittance of the first substrate and the second substrate is 60%~95%.

[0012] In a preferred embodiment, the thickness of the heated coating is 10 nm to 2000 nm.

[0013] In a preferred embodiment, the heat-coating layer is a conductive coating formed by vacuum deposition of one of the following: nickel-chromium alloy, silicon carbide, ZnOxS(1-x), InOxS(1-x), SnxIn(1-x)O, ZnxMg(1-x)O, and ZnxAl(1-x)O.

[0014] One of the above technical solutions has the following advantages or beneficial effects: This utility model can quickly heat and bake food (bread), and it uses indirect electric heating, which is safe and convenient. Moreover, the first substrate and the second substrate are set in a vacuum state, which can effectively insulate against heat and prevent burns.

[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0016] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed according to this utility model and should not be construed as limiting the scope of this utility model.

[0017] Figure 1 A cross-sectional schematic diagram of a food heating machine according to an embodiment of the present invention is shown.

[0018] Figure 2 A cross-sectional schematic diagram of the first heating element or the second heating element in the food heating machine according to an embodiment of the present invention is shown. Detailed Implementation

[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0020] In a first aspect, this utility model embodiment provides a food heating machine, see reference. Figure 1 As shown, the food heating machine includes a housing 30, a first heating element 10, and a second heating element 20.

[0021] The first heating element 10 and the second heating element 20 are disposed on both sides of the housing 30. See Figure 1 and Figure 2 As shown, both the first heating element 10 and the second heating element 20 include a first substrate 201, a second substrate 203, a heating plating layer 202, and an electrode 204. The first substrate 201 and the second substrate 203 are disposed opposite to each other, and the edges of the first substrate 201 and the second substrate 203 are sealed together to form a cavity between the first substrate 201 and the second substrate 203. The cavity is a vacuum chamber. The heating plating layer 202 is a conductive plating layer formed on the surface of the second substrate 203 located in the cavity by vacuum deposition of semiconductor metal oxide. The electrodes 204 are disposed on both sides of the heating plating layer 202 and are connected to a power source. The heating plating layer 202 generates heat when the electrodes 204 are energized and transfers the heat to the second substrate 203.

[0022] The second substrate 203 of the first heating element 10 and the second substrate 203 of the second heating element 20 are arranged opposite to each other, and the space formed between the second substrate 203 of the first heating element 10 and the second substrate 203 of the second heating element 20 is the heating space.

[0023] This embodiment can quickly heat and bake food (bread), and it uses indirect electric heating, which is safe and convenient. In addition, the first substrate 201 and the second substrate 203 are set in a vacuum state, which can effectively insulate against heat and prevent burns.

[0024] In one specific embodiment, the first heating element 10 is fixedly connected to the housing 30, and the second heating element 20 is rotatably connected to the housing 30. The second heating element 20 rotates toward the first heating element 10 to form a heating space, and the second substrate 203 of the first heating element 10 and the second heating element 20 when the second heating element 20 rotates toward the first heating element 10 to form a heating space serves as the inner wall of the heating space.

[0025] In one specific embodiment, the angle between the second heating element 20 and the first heating element 10 when the second heating element 20 rotates is 0~180°.

[0026] In one specific embodiment, the light transmittance of the first heating element 10 and the second heating element 20 is not less than 30%, wherein the light transmittance of the first substrate 201 and the second substrate 203 is 60%~95%.

[0027] In one specific embodiment, the thickness of the heat-coated layer 202 is 10nm~2000nm.

[0028] In one specific embodiment, the heat-coating layer 202 is a conductive coating formed by vacuum deposition of one of the following: nickel-chromium alloy, silicon carbide, ZnOxS(1-x), InOxS(1-x), SnxIn(1-x)O, ZnxMg(1-x)O, and ZnxAl(1-x)O.

[0029] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A food heating machine, characterized in that, include: case; A first heating element and a second heating element are disposed on both sides of the housing. Each heating element includes a first substrate, a second substrate, a heating coating, and electrodes. The first substrate and the second substrate are disposed opposite each other and are sealed together at their periphery to form a cavity between them. The cavity is a vacuum chamber. The heating coating is a conductive coating formed on the surface of the second substrate within the cavity by vacuum deposition of a semiconductor metal oxide. The electrodes are disposed on both sides of the heating coating and are connected to a power source. The heating coating generates heat when the electrodes are energized and transfers the heat to the second substrate. The second substrate of the first heating element and the second substrate of the second heating element are arranged opposite to each other, and the space formed between the second substrate of the first heating element and the second substrate of the second heating element is the heating space.

2. The food heating machine as described in claim 1, characterized in that, The first heating element is fixedly connected to the housing, and the second heating element is rotatably connected to the housing. The second heating element rotates toward the first heating element to close and form the heating space. The second substrate of the first heating element and the second heating element when the second heating element rotates toward the first heating element to close serves as the inner wall of the heating space.

3. The food heating machine as described in claim 2, characterized in that, The angle between the second heating element and the first heating element when the second heating element rotates is 0~180°.

4. The food heating machine according to any one of claims 1-3, characterized in that, The light transmittance of the first heating element and the second heating element is not less than 30%, wherein the light transmittance of the first substrate and the second substrate is 60%~95%.

5. The food heating machine as described in claim 4, characterized in that, The thickness of the heated coating is 10nm~2000nm.

6. The food heating machine as described in claim 5, characterized in that, The heat-coating layer is a conductive coating formed by vacuum deposition of one of the following: nickel-chromium alloy, silicon carbide, ZnOxS(1-x), InOxS(1-x), SnxIn(1-x)O, ZnxMg(1-x)O, and ZnxAl(1-x)O.

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