Far infrared oven

Abstract

The utility model relates to a far infrared oven, which comprises an inner container, an outer container and a heating device, the first electric heating pipe comprises a first electric heating element, a graphene coating and a hollow first pipe body, the first pipe body is arranged on the wall of the inner container, the electric heating element is arranged in the first pipe body, the graphene coating is arranged on the outer surface of the first pipe body in a coating mode, and the first pipe body is made of metal alloy and is in a continuous S shape or a planar spiral shape. The first pipe body is made of the metal alloy, so that the first pipe body is good in ductility and can be made into a relatively complex shape. In the far infrared oven, the first pipe body is in the continuous S shape or the plane spiral shape, so that the electric heating pipes are evenly distributed, the graphene coating is arranged on the outer surface of the first pipe body in a coating mode, the graphene coating is also evenly distributed, high-energy infrared rays emitted by the graphene coating are evenly distributed in the inner container, and therefore food materials are evenly heated, and the heating effect is good. Therefore, the cooking effect of the far infrared oven can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a far-infrared oven. Background Art

[0002] Graphene can generate high-energy infrared rays after being heated. Coating graphene on the surface of the electric heating tube can make the electric heating tube emit high-energy infrared rays, thereby quickly cooking food. Therefore, in order to increase the speed of cooking food, the electric heating tube of the far-infrared oven is usually coated with a graphene coating. However, the tube body of the electric heating tube in the current far-infrared oven is a quartz tube, and the graphene coating is coated on the quartz tube. The ductility of the quartz tube is very poor. Therefore, the shape of the quartz tube can only be made into a simple shape with a small size such as a short straight line or a small diameter circle. This causes the electric heating tube to be unevenly distributed in the far-infrared oven, which in turn causes the electric heating tube to heat unevenly. Therefore, after the electric heating tube is working, a part of the inner tank of the far-infrared oven receives a large amount of infrared rays and heats up quickly, while another part of the area receives less infrared rays and heats up slowly, resulting in uneven heating of food and poor cooking effect of the far-infrared oven. Utility Model Content

[0003] Based on this, it is necessary to provide a far-infrared oven to address the above problems, which can heat more evenly and improve cooking effects.

[0004] In order to solve the above problems, the utility model provides the following technical solutions:

[0005] A far infrared oven, comprising:

[0006] Liner; and

[0007] The first electric heating tube comprises a first electric heating element, a graphene coating and a hollow first tube body, wherein the first tube body is arranged on the wall of the inner tank, the electric heating element is arranged in the first tube body, the graphene coating is coated on the outer surface of the first tube body, and the first tube body is made of a metal alloy and is in a continuous S shape or a planar spiral shape.

[0008] The far infrared oven has at least the following beneficial effects:

[0009] The first tube body is made of a metal alloy, so the first tube body has good ductility and can be made into a more complex shape. Specifically, in the far-infrared oven provided by the utility model, the first tube body is in a continuous S-shape or a flat spiral shape, which makes the electric heating tube evenly distributed, and the graphene coating is coated on the outer surface of the first tube body, so the graphene coating is also evenly distributed, and the high-energy infrared rays emitted by the graphene coating are evenly distributed in the inner pot, so that the food is evenly heated, so that the cooking effect of the far-infrared oven can be improved.

[0010] In one embodiment, the first tube is made of 840 stainless steel or 304 stainless steel.

[0011] In this way, 840 stainless steel and 304 stainless steel are resistant to high temperature, corrosion, oxidation and high mechanical strength, and are suitable for making the first tube body that needs to withstand high temperature. Moreover, 840 stainless steel and 304 stainless steel are food grade stainless steel, which is conducive to ensuring the food safety of users.

[0012] In one embodiment, the far infrared oven further comprises a second electric heating tube disposed on the wall of the inner pot, the second electric heating tube comprises a second tube body, and the second tube body surrounds the first tube body.

[0013] With this arrangement, the first electric heating tube and / or the second electric heating tube can be selectively turned on and off for different ingredients. For example, for ingredients that need to be heated slowly over a low flame, only the second electric heating tube can be turned on for heating; for ingredients that need to be heated over a medium flame, only the first electric heating tube can be turned on for heating; for ingredients that need to be heated over a high flame, both the first and second electric heating tubes can be turned on at the same time.

[0014] In one embodiment, the far infrared oven further comprises a mounting beam, wherein the mounting beam is fixedly mounted on the top wall of the inner container, wherein:

[0015] The first tube has a first heating portion, and the mounting beam is staggered with the first heating portion to be fixedly connected with the first heating portion at multiple positions; and / or,

[0016] The second tube body has a second heating portion, and the mounting beam is staggered with the second heating portion to be fixedly connected with the second heating portion at multiple positions.

[0017] With such an arrangement, the first electric heating tube and / or the second electric heating tube can be firmly fixed to the top wall of the inner pot, which is beneficial to improving the stability of the first electric heating tube and / or the second electric heating tube.

[0018] In one embodiment, the far-infrared oven further includes a reinforcing beam, the first tube body has a first heating portion, the second tube body has a second heating portion, and the reinforcing beam is fixedly connected to the first heating portion and the second heating portion to fix the first heating portion and the second heating portion together.

[0019] In this way, the first electric heating tube and the second electric heating tube are fixed together, which can prevent displacement between the first electric heating tube and the second electric heating tube, thereby increasing the overall stability of the first electric heating tube and the second electric heating tube.

[0020] In one embodiment, the far infrared oven comprises a hot air blower, the hot air blower and the first electric heating tube are both arranged on the top wall of the inner pot, and the first electric heating tube is arranged directly below the hot air blower; or,

[0021] The far infrared oven comprises a hot air blower. The hot air blower and the first electric heating tube are both arranged on the bottom wall of the inner pot, and the first electric heating tube is arranged directly above the hot air blower.

[0022] With such an arrangement, the hot air near the first electric heating tube can be immediately blown by the hot air blower onto the food in the inner pot, which can improve the cooking efficiency of the far-infrared oven.

[0023] In one embodiment, two first electric heating tubes are provided, and the two first electric heating tubes are respectively arranged on the top wall and the bottom wall of the inner container.

[0024] With this arrangement, one electric heating tube radiates heat from top to bottom, and the other electric heating tube radiates heat from bottom to top, which is conducive to uniform heating of the ingredients and can improve the cooking effect of the far-infrared oven.

[0025] In one embodiment, the inner pot wall includes a first wall, the first electric heating tube is arranged on the first wall, and the far-infrared oven also includes an infrared reflection plate for reflecting infrared rays, the infrared reflection plate is arranged between the first electric heating tube and the first wall, and the reflection surface of the infrared reflection plate faces the first electric heating tube.

[0026] With such an arrangement, the infrared reflective plate can reflect the infrared rays emitted by the first electric heating tube onto the food in the inner pot, thereby improving the cooking efficiency of the far-infrared oven.

[0027] In one embodiment, the reflective surface of the infrared reflective plate is curved.

[0028] With this arrangement, the reflective surface of the infrared reflective plate forms a diffuse reflective surface, which can reflect the infrared rays emitted by the first electric heating tube more evenly onto the food in the inner pot in a diffuse reflection manner, so that the food is evenly heated, which can improve the cooking effect of the far-infrared oven.

[0029] In one embodiment, the reflective surface of the infrared reflective plate is in the shape of a curved surface.

[0030] Such an arrangement facilitates the manufacture of the reflective surface of the infrared reflective plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural schematic diagram of a part of the structure of a far infrared oven according to an embodiment of the utility model;

[0032] Figure 2for Figure 1 A schematic diagram of a structure of a portion of the structure shown;

[0033] Figure 3 for Figure 1 The schematic diagram of the structure after the glass plate is installed in the structure shown;

[0034] Figure 4 for Figure 3 Schematic diagram of the positional relationship of some structures in the shown structure.

[0035] Reference numerals:

[0036] 1. Inner liner; 11. First wall;

[0037] 2. first electric heating tube; 21. first tube body; 211. first connection part; 212. first heating part;

[0038] 3. second electric heating tube; 31. second tube body; 311. second connection part; 312. second heating part;

[0039] 4. Install the beam;

[0040] 5. Strengthen the beam;

[0041] 6.Ω-type pipe clamp;

[0042] 7. Infrared reflective plate; 71. Reflective surface;

[0043] 8. Glass plate; 81. Air vent. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0050] See also Figure 1 and Figure 2 The utility model provides a far-infrared oven, which includes an inner pot 1 and a first electric heating tube 2. The first electric heating tube 2 includes a first electric heating element, a graphene coating and a hollow first tube body 21. The first tube body 21 is arranged on the wall of the inner pot 1, and the electric heating element is arranged in the first tube body 21. The first tube body 21 is made of a metal alloy. Therefore, the first tube body 21 has good ductility and can be made into a more complex shape. Specifically, in the far-infrared oven provided by the utility model, the first tube body 21 is in a continuous S shape (such as Figure 2 As shown) or in a flat spiral shape, the electric heating tube is evenly distributed, and the graphene coating is coated on the outer surface of the first tube body 21. Therefore, the graphene coating is also evenly distributed, and the high-energy infrared rays emitted by the graphene coating are evenly distributed in the inner pot 1, thereby evenly heating the food, thereby improving the cooking effect of the far-infrared oven.

[0051] Exemplarily, the first electric heating element may be a resistance wire, a resistance sheet, or an electric heating tube.

[0052] In the embodiment where the first tube body 21 is in a planar spiral shape, the optimal shape of the first tube body 21 can be determined according to the shape of the gallbladder wall. Exemplarily, in these embodiments, if the area on the gallbladder wall for setting the first tube body 21 is circular, the shape of the first tube body 21 is preferably a circular spiral; if the area on the gallbladder wall for setting the first tube body 21 is square, the shape of the first tube body 21 is preferably a square spiral.

[0053] Preferably, the first tube body 21 is made of 840 stainless steel or 304 stainless steel. 840 stainless steel and 304 stainless steel are resistant to high temperature, corrosion, oxidation and high mechanical strength, and are suitable for making the first tube body 21 that needs to withstand high temperature. Moreover, 840 stainless steel and 304 stainless steel are food-grade stainless steel, which is conducive to ensuring the food safety of users. Of course, in other embodiments, the first tube body 21 can also be made of other metal alloys, such as nickel-chromium alloy.

[0054] See also Figure 1 and Figure 2The far infrared oven further comprises a second electric heating tube 3 provided on the wall of the inner pot 1, the second electric heating tube 3 comprising a second tube body 31, and the second tube body 31 surrounds the first tube body 21. In this way, the first electric heating tube 2 and / or the second electric heating tube 3 can be selectively switched on and off for different ingredients. For example, for ingredients that need to be heated slowly with a low fire, only the second electric heating tube 3 can be turned on for heating; for ingredients that need to be heated with a medium fire, only the first electric heating tube 2 can be turned on for heating; for ingredients that need to be heated with a high fire, both the first electric heating tube 2 and the second electric heating tube 3 can be turned on at the same time.

[0055] It can be understood that in some embodiments, the second tube body 31 can be square (eg Figure 2 ), a simple shape such as a circle or the like is arranged around the periphery of the first tube body 21. In other embodiments, the second tube body 31 may also be shaped like the outer side of the first tube body 21 and be spaced apart from the first tube body 21.

[0056] See also Figure 1 and Figure 2 The far infrared oven further comprises a mounting beam 4, which is fixedly mounted on the top wall of the inner pot 1. The first tube body 21 has a first heating portion 212, and the mounting beam 4 is staggered with the first heating portion 212 to be fixedly connected with the first heating portion 212 at multiple positions, thereby firmly fixing the first electric heating tube 2 to the top wall of the inner pot 1, which is beneficial to improving the stability of the first electric heating tube 2.

[0057] Exemplarily, the mounting beam 4 is screwed or welded to the top wall of the inner tank 1 .

[0058] See also Figure 2 In some embodiments, the mounting beam 4 and the first heating portion 212 are in contact at multiple locations and are fixed together at these contact locations by Ω-shaped pipe clamps 6, both ends of the Ω-shaped pipe clamps 6 are screwed to the mounting beam 4, and the middle portion of the Ω-shaped pipe clamps 6 embraces the first heating portion 212. In other embodiments, the mounting beam 4 and the first heating portion 212 may also be welded or tied together.

[0059] Likewise, see Figure 2 The second tube body 31 has a second heating portion 312, and the mounting beam 4 and the second heating portion 312 are also staggered to be fixedly connected with the second heating portion 312 at multiple positions, so that the second electric heating tube 3 is firmly fixed to the top wall of the inner tank 1, which is beneficial to improve the stability of the second electric heating tube 3. For ease of manufacturing, the fixed connection method between the mounting beam 4 and the second heating portion 312 is the same as the fixed connection method between the mounting beam 4 and the first heating portion 212.

[0060] See also Figure 1 and Figure 2The far infrared oven further comprises a reinforcing beam 5, which is fixedly connected to the first heating part 212 and the second heating part 312 to fix the first heating part 212 and the second heating part 312 together. In this way, the first electric heating tube and the second electric heating tube are fixed together, which can prevent displacement between the first electric heating tube and the second electric heating tube, thereby increasing the overall stability of the first electric heating tube and the second electric heating tube.

[0061] Preferably, see Figure 2 The reinforcing beam 5 is staggered with the first heating part 212 to be fixedly connected with the first heating part 212 at multiple positions. The reinforcing beam 5 is also staggered with the second heating part 312 to be fixedly connected with the second heating part 312 at multiple positions.

[0062] Exemplarily, the reinforcing beam 5 and the first heating portion 212 and the second heating portion 312 may be fixedly connected by welding or binding.

[0063] See also Figure 2 Combined with Figure 1 The first tube body 21 includes a first wiring portion 211, and the second tube body 31 includes a second wiring portion 311. The first wiring portion 211 and the second wiring portion 311 are both connected to the same side wall of the inner tank 1. The mounting beam 4 is fixedly connected to the first heating portion 212 at one end close to the first heating portion 212 and away from the side wall. Similarly, the mounting beam 4 is fixedly connected to the second heating portion 312 at one end close to the second heating portion 312 and away from the side wall.

[0064] Preferably, the reinforcing beam 5 and the mounting beam 4 are arranged in parallel and at intervals.

[0065] In some embodiments, the far infrared oven includes a hot air blower, and the hot air blower and the first electric heating tube 2 are both arranged on the top wall of the inner pot 1, and the first electric heating tube 2 is arranged directly below the hot air blower. In other words, along the air outlet direction of the hot air blower, the first electric heating tube 2 is located in front of the air outlet of the hot air blower. In this way, the hot air near the first electric heating tube 2 can be immediately blown by the hot air blower to the food in the inner pot 1, which can improve the cooking efficiency of the far infrared oven.

[0066] Of course, in other embodiments, the hot air blower and the first electric heating tube 2 may also be both arranged on the bottom wall of the inner tank 1, and the first electric heating tube 2 is arranged directly above the hot air blower.

[0067] Optionally, two first electric heating tubes 2 are provided, and the two first electric heating tubes 2 are respectively arranged on the top wall and the bottom wall of the inner pot 1. In this way, one electric heating tube radiates heat from top to bottom, and the other electric heating tube radiates heat from bottom to top, which is conducive to uniform heating of the food and can improve the cooking effect of the far infrared oven.

[0068] See also Figure 1The inner pot 1 includes a first wall 11, the first electric heating tube 2 is arranged on the first wall 11, and the far infrared oven further includes an infrared reflection plate 7 for reflecting infrared rays, the infrared reflection plate 7 is arranged between the first electric heating tube 2 and the first wall 11, and the reflection surface 71 of the infrared reflection plate 7 faces the first electric heating tube 2. In this way, the infrared reflection plate 7 can reflect the infrared rays emitted by the first electric heating tube 2 to the food in the inner pot 1, which can improve the cooking efficiency of the far infrared oven.

[0069] Understandably, Figure 1 In the illustrated embodiment, the first wall 11 is the top wall of the inner container 1. In other embodiments, the first wall 11 may also be the side wall or the bottom wall of the inner container 1.

[0070] Preferably, see Figure 1 and Figure 4 , the reflective surface 71 of the infrared reflective plate 7 is curved. In this way, the reflective surface 71 of the infrared reflective plate 7 forms a diffuse reflective surface 71, which can reflect the infrared rays emitted by the first electric heating tube 2 to the food in the inner pot 1 in a relatively uniform manner in a diffuse reflection manner, so that the food is evenly heated, which can improve the cooking effect of the far-infrared oven.

[0071] Preferably, in order to facilitate the manufacture of the reflective surface 71 of the infrared reflective plate 7 , the reflective surface 71 of the infrared reflective plate 7 is in the shape of an arc surface.

[0072] Preferably, the reflective surface 71 of the infrared reflective plate 7 is in a concave-convex shape, which is conducive to making the reflective surface 71 form more diffuse reflection, and is conducive to the reflective surface 71 reflecting the infrared rays emitted by the first electric heating tube 2 more evenly onto the food in the inner pot 1, which is conducive to making the food evenly heated, thereby improving the cooking effect of the far-infrared oven. Exemplarily, the reflective surface 71 of the infrared reflective plate 7 is concave-convex pressed.

[0073] In some embodiments, a through hole is provided on the infrared reflection plate 7 , and the hot air blower is penetrated through the infrared reflection plate 7 through the through hole so that the fan blades of the hot air blower are directly opposite to the first electric heating tube 2 .

[0074] See also Figure 3 and Figure 4 In some embodiments, the far infrared oven further comprises a glass plate 8 disposed on the side wall of the inner pot 1, the infrared reflective plate 7, the first electric heating tube 2, and the glass plate 8 are disposed in sequence, and the infrared rays emitted by the first electric heating tube 2 can pass through the glass plate 8 and irradiate the food in the inner pot 1. An air outlet 81 is disposed on the glass plate 8, and the hot air near the first electric heating tube 2 can flow to the food in the inner pot 1 through the air outlet 81 under the blowing of the hot air blower. The provision of the glass plate 8 is conducive to preventing the oil generated in the inner pot 1 from contaminating the electric heating tube.

[0075] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A far infrared oven, characterized in that: include: Liner (1); and The first electric heating tube (2) comprises a first electric heating element, a graphene coating and a hollow first tube body (21), wherein the first tube body (21) is arranged on the wall of the inner pot (1), the electric heating element is arranged inside the first tube body (21), the graphene coating is coated on the outer surface of the first tube body (21), and the first tube body (21) is made of a metal alloy and is in a continuous S shape or a planar spiral shape.

2. The far infrared oven according to claim 1, characterized in that: The first tube body (21) is made of 840 stainless steel or 304 stainless steel.

3. The far infrared oven according to claim 1, characterized in that: The far-infrared oven further comprises a second electric heating tube (3) arranged on the wall of the inner pot (1), the second electric heating tube (3) comprising a second tube body (31), and the second tube body (31) surrounds the first tube body (21).

4. The far infrared oven according to claim 3, characterized in that: The far-infrared oven further comprises a mounting beam (4), wherein the mounting beam (4) is fixedly mounted on the top wall of the inner container (1), wherein: The first tube (21) has a first heating portion (212), and the mounting beam (4) and the first heating portion (212) are arranged alternately so as to be fixedly connected to the first heating portion (212) at multiple positions; and / or, The second tube body (31) has a second heating portion (312), and the mounting beam (4) and the second heating portion (312) are arranged alternately so as to be fixedly connected to the second heating portion (312) at multiple positions.

5. The far infrared oven according to claim 4, characterized in that: The far-infrared oven further comprises a reinforcing beam (5); the first tube body (21) has a first heating portion (212); the second tube body (31) has a second heating portion (312); the reinforcing beam (5) is fixedly connected to the first heating portion (212) and the second heating portion (312) so as to fix the first heating portion (212) and the second heating portion (312) together.

6. The far infrared oven according to claim 1, characterized in that: The far-infrared oven comprises a hot air blower, the hot air blower and the first electric heating tube (2) are both arranged on the top wall of the inner pot (1), and the first electric heating tube (2) is arranged directly below the hot air blower; or, The far-infrared oven comprises a hot air blower, wherein the hot air blower and the first electric heating tube (2) are both arranged on the bottom wall of the inner pot (1), and the first electric heating tube (2) is arranged directly above the hot air blower.

7. The far infrared oven according to claim 6, characterized in that: Two first electric heating tubes (2) are provided, and the two first electric heating tubes (2) are respectively arranged on the top wall and the bottom wall of the inner container (1).

8. The far infrared oven according to claim 1, characterized in that: The inner pot (1) has a wall comprising a first wall (11), the first electric heating tube (2) being arranged on the first wall (11), and the far-infrared oven further comprising an infrared reflection plate (7) for reflecting infrared rays, the infrared reflection plate (7) being arranged between the first electric heating tube (2) and the first wall (11), and a reflection surface (71) of the infrared reflection plate (7) facing the first electric heating tube (2).

9. The far infrared oven according to claim 8, characterized in that: The reflective surface (71) of the infrared reflective plate (7) is in the shape of a curved surface.

10. The far infrared oven according to claim 9, characterized in that: The reflective surface (71) of the infrared reflective plate (7) is in the shape of an arc surface.

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