Built-in electric oven air curtain heating system and built-in electric oven
The air curtain heating system addresses non-uniform heating in built-in ovens by superimposing air ducts for horizontal and vertical wind superposition, achieving uniform heat distribution and baking.
Patent Information
- Application Number
- CN201810016868.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-01-08
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2038-01-08
AI Technical Summary
Existing built-in electric ovens suffer from non-uniform heating, leading to issues such as local burning and over-browning during cooking.
An air curtain heating system with superimposed air ducts at different positions, forming wind superposition in horizontal and vertical directions to achieve uniform heating through turbulence.
Ensures uniform heat distribution and baking by superimposing air ducts at various positions, resulting in even heating of food within the oven.
Smart Images
Figure CN108056673B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of kitchenware systems, in particular to a built-in electric oven air curtain heating system and a built-in electric oven. Background Art
[0002] The heating system of the existing built-in electric ovens in China is mainly composed of three parts: heating tubes, heating fans, and closed cavities. The uniformity of different layers and different positions on the same layer is relatively low. When users cook food, problems such as local burning and over-browning may occur.
[0003] In view of this, there is an urgent need for a structure of a built-in electric oven that can achieve uniform heating.
[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention
[0005] The first purpose of the present invention is to provide an embedded electric oven air curtain heating system, which can achieve uniform heating by superimposing air ducts at different positions inside the embedded electric oven, achieve wind superposition in horizontal and vertical directions, and achieve overall wind and thermal uniformity configuration through turbulence, thereby achieving uniform distribution of heat and uniform baking of food.
[0006] The present invention provides an embedded electric oven air curtain heating system, comprising a wind system and a heating air duct, wherein the wind system provides hot air for heating to the interior of the oven body through the heating air duct;
[0007] The heating air duct includes an outer shell and is formed between the outer shell and the inner tank, and is connected to the inner tank cavity through an air outlet, wherein the air outlet includes at least a vertical air outlet and a horizontal air outlet, and the extension lines of the air outlet in the horizontal direction and the vertical direction are staggered with each other;
[0008] The wind power system is a wind power system with a heating pipe, which generates hot air that passes through the heating air duct and then blows into the inner tank cavity through the air outlet, forming a wind curtain in the horizontal and vertical directions.
[0009] In any of the above technical solutions, further, the heating air duct is a heating air duct connected to any one, two or more side walls of the inner liner, and the air outlet is provided on the heating air duct.
[0010] In any of the above technical solutions, further, the air outlets of each side wall are overall located on the same level, forming a horizontal layered arrangement and a vertical layered arrangement.
[0011] In any of the above technical solutions, further, the vertical cross-sectional shape of the heating air duct connected to each side wall is composed of a triangular structure with a gradually increasing size from one end to the other end;
[0012] The air outlet on each side wall is a multi-layered hole structure, and the aperture of the multi-layered hole structure gradually decreases from the outside to the inside.
[0013] In any of the above technical solutions, further, the top wall of the inner pot and the left and right walls of the inner pot are provided with air outlets, and the top wall, left and right walls of the inner pot are provided with corresponding heating air ducts connected to the air outlets of the side walls. The food to be baked at the bottom of the inner pot gathers the hot air from the multi-directional air curtain blown out by the top wall, left and right walls for heating and baking.
[0014] In any of the above technical solutions, further, the ratio d / D of the thickness of the layer where the aperture of the air outlet is located and the distance between two adjacent layers is 0.25-1.
[0015] In any of the above technical solutions, further, a rear wall air duct is arranged on the outer side of the rear wall of the inner liner, and the rear wall air duct is respectively connected to the air ducts of the top wall, the left wall and the right wall of the inner liner.
[0016] In any of the above technical solutions, further, the top wall, the left side wall and the right side wall of the inner container are smoothly connected in sequence to form an integrated structure of a U-shaped plate.
[0017] In any of the above technical solutions, further, a rear heating pipe is arranged in front of the rear wall of the inner container;
[0018] And / or, a top heating tube is arranged below the top wall of the inner container.
[0019] In any of the above technical solutions, further, each of the air ducts is a hollow structure with a volume gradually decreasing from the inside to the outside.
[0020] In any of the above technical solutions, further, a plurality of groups of air outlets are dispersedly arranged on the rear wall air duct.
[0021] In any of the above technical solutions, further, each of the heating tubes is fixedly connected to the inner tank.
[0022] The second purpose of the present invention is to provide a built-in electric oven, which is equipped with the above-mentioned heating system, which can achieve uniform heating by superimposing air ducts at different positions inside the built-in electric oven, achieve wind superposition in horizontal and vertical directions, and achieve overall wind and thermal uniformity through turbulence, thereby achieving uniform distribution of heat and uniform baking of food.
[0023] The present invention provides a built-in electric oven, which is provided with the above-mentioned built-in electric oven air curtain heating system.
[0024] The beneficial effects of the present invention are as follows:
[0025] The embedded electric oven air curtain heating system of the present invention comprises a wind power system and a heating air duct, wherein the wind power system provides hot air for heating to the interior of the oven body through the heating air duct; the heating air duct comprises an outer shell and is formed between the outer shell and the inner pot, and is connected to the inner pot cavity through an air outlet, wherein the air outlet comprises at least a vertical air outlet and a horizontal air outlet, and the extension lines of the air outlet in the horizontal direction and the vertical direction are staggered with each other; the wind power system is a wind power system with a heating pipe, and the hot air generated passes through the heating air duct and then blown into the inner pot cavity through the air outlet, and forms an air curtain in the horizontal and vertical directions; When in use, the heating system of the present scheme can be used as an independent heat source or as an auxiliary heat source for heating food in the electric oven. When in use, the wind system provides hot air, and the hot air is blown out through various positions of the heating air duct respectively, to generate horizontal or vertical wind curtains at the air ducts at different positions in the oven body, and the different wind curtains formed by the air ducts in various directions are superimposed, so that the food in the electric oven can be heated evenly; specifically, the wind system is connected with the heating air duct to realize the blowing of hot air in different directions. The food is located in the heating area of the oven body, and the hot air blown out in different directions can act on the heating area to achieve even heating of the food.
[0026] The embedded electric oven of the present invention is provided with the above-mentioned embedded electric oven air curtain heating system; the embedded electric oven using this solution can achieve uniform heating by superimposing air ducts at different positions inside the embedded electric oven, achieve wind superposition in horizontal and vertical directions, and achieve overall wind and heat uniformity configuration through turbulence, thereby achieving uniform distribution of heat and uniform baking of food. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0028] Figure 1 This is a schematic diagram of the axonometric structure of a built-in electric oven provided in the second embodiment of the present invention;
[0029] Figure 2 A schematic diagram of the axial structure of the top heating air duct of the air curtain heating system of the embedded electric oven provided in the first embodiment of the present invention;
[0030] Figure 3 A schematic diagram of the axial structure of the side heating air duct of the embedded oven air curtain uniform heating system provided in the first embodiment of the present invention;
[0031] Figure 4 A schematic diagram of the axial structure of the rear air duct of the embedded oven air curtain uniform heating system provided in the first embodiment of the present invention;
[0032] Figure 5 A schematic diagram of air outlets and air volumes along the vertical cross-section direction of the top wall air duct in the embedded oven air curtain uniform heating system provided in the first embodiment of the present invention;
[0033] Figure 6 This is a schematic diagram of the air outlet holes and air output along the vertical cross-section direction of the left wall and the right wall in the embedded oven air curtain uniform heating system provided in Example 1 of the present invention.
[0034] Reference numerals:
[0035] 100 - oven body;
[0036] 101 - housing; 102 - top wall air duct; 103 - U-shaped plate; 104 - rear wall air duct; 105 - top heating pipe; 106 - rear heating pipe;
[0037] 1021 - top wall; 1022 - top wall air outlet; 1023 - top wall air duct edge;
[0038] 1031 - left side wall; 1032 - bottom wall; 1033 - right side wall;
[0039] 10311 - left wall air outlet; 10321 - bottom wall air outlet; 10331 - right wall air outlet;
[0040] 1041 - heat transfer air area; 1042 - rear wall air outlet; 1043 - rear wall air duct edge. DETAILED DESCRIPTION
[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0044] Reference below Figure 1 - Figure 6 The technical solutions of the embedded electric oven air curtain heating system and the embedded electric oven of the first and second embodiments are described in detail.
[0045] Embodiment 1
[0046] The specific implementation of this embodiment is as follows:
[0047] like Figure 1 -6 is a schematic diagram of the structure of the embedded electric oven air curtain heating system provided in the present embodiment and its application in the embedded electric oven. The embedded electric oven air curtain heating system includes a wind system and a heating air duct. The wind system provides hot air for heating to the interior of the oven body 100 through the heating air duct; the heating air duct includes the outer shell 101 of the oven body 100 and is formed between the outer shell 101 and the inner pot, and is connected to the inner pot cavity through the air outlet. The air outlet includes at least a vertical air outlet and a horizontal air outlet, and the extension lines of the air outlet in the horizontal and vertical directions are staggered with each other; the wind system is a wind system with a heating pipe, and the hot air generated is blown into the inner pot cavity through the air outlet after passing through the heating air duct, and forms an air curtain in the horizontal and vertical directions.
[0048] An optional solution of this embodiment is that the heating air duct is a heating air duct connected to any one, two or more side walls of the inner tank, and an air outlet is provided on the heating air duct.
[0049] It should be noted that the heating air duct of the present embodiment may be a heating air duct located on any side wall of the inner tank, and may have only a single-sided air duct to form a single-sided wind curtain. The single-sided heating air duct is not only provided with an air outlet, but also provided with a heating tube and a heating fan. The three work together to enable the hot air blown out by the heating fan to be connected to the single-sided heating air duct. The air outlet of the single-sided heating air duct is a multi-layered structure, and the air outlet structure may be a plurality of groups of porous structures. Each group of air outlet holes may also include one, two or more porous structures. The multiple groups of porous structures are set at different positions of the heating air duct as needed.
[0050] An optional solution of this embodiment is that the air outlets of each side wall are on the same level as a whole, and the wind is output in layers, forming a horizontal layer arrangement and a vertical layer arrangement.
[0051] It should be noted that the air outlet used in the built-in electric oven air curtain heating system of this embodiment can be set on one of the side walls, two side walls, or multiple side walls of the inner pot. Each side wall of the inner pot is provided with the above-mentioned air outlet, and the wind from the air outlet is horizontally layered or vertically layered, so that the hot air can pass through the heating air duct along the air outlet and blow onto the food to be baked in the inner pot cavity to achieve a heating effect; the use of multi-layer horizontal output and multi-layer vertical output can make the hot air blow out to the food to be baked in different directions, further ensuring the uniform distribution of the hot air in the inner pot cavity.
[0052] An optional solution for this embodiment is that the vertical cross-sectional shape of the heating air duct connected to each side wall is composed of a triangular structure whose size gradually increases from one end to the other; the air outlet on each side wall is a multi-layer porous structure, and the multi-layer porous structure has a gradually decreasing aperture from the outer to the inner.
[0053] like Figure 5 and 6 As shown, it is a structural schematic diagram of the vertical cross-section shape of the air duct shape of the top wall air duct 102, the left wall air duct and the right wall air duct. With this structural setting, it can be combined with the setting of the multi-layer hole shape of the air outlet with the aperture gradually decreasing from the outside to the inside. The speed of hot air blown out of the part of the air outlet with a smaller aperture is faster, and the speed of hot air blown out of the part of the air outlet with a larger aperture is slower. However, combined with the setting of the aperture size, the air volume of hot air blown out through the small holes and the large holes in the same time period can be made the same, so as to achieve uniform distribution of heat in the inner tank cavity.
[0054] An optional solution of this embodiment is that the top wall 1021 of the inner pot and the left side wall 1031 and the right side wall 1033 of the inner pot are all provided with air outlets, and the top wall 1021, the left side wall 1031 and the right side wall 1033 of the inner pot are all provided with corresponding heating air ducts connected with the air outlets of the side walls, and the food to be baked at the bottom of the inner pot gathers the hot air from the multi-directional air curtain blown out by the top wall 1021, the left side wall 1031 and the right side wall 1033 for heating and baking.
[0055] It should be noted that if Figure 1 -4, the preferred scheme of this embodiment is to adopt a method of setting air ducts on the top wall 1021, the left wall 1031 and the right wall 1033, so that the air outlets of the top wall air duct 102, the left wall air duct and the right wall air duct all form a wind curtain toward the inner tank cavity, forming superimposed heating of the wind curtain, and further accelerating the uniform distribution of heat in the inner tank cavity.
[0056] An optional solution of this embodiment is that the ratio d / D of the layer thickness d where the aperture of the air outlet is located and the distance D between two adjacent layers is 0.25-1. Such a size setting can allow each layer of space in the oven cavity to form a hot air layer; for example, the air outlet size range is 0.5mm-4mm; the distance between two adjacent layers is 1mm-8mm.
[0057] It should be noted that the above-mentioned setting is conducive to the rapid filling of the air curtain hot air at each level of the inner tank cavity to achieve uniform heating.
[0058] An optional solution of this embodiment is that a rear wall air duct 104 is provided on the outer side of the rear wall of the inner container, and the rear wall air duct 104 is respectively connected to the air ducts of the top wall 1021, the left side wall 1031 and the right side wall 1033 of the inner container.
[0059] It should be noted that the heating air duct combined with the rear wall air duct 104 further increases the heating rate of the inner tank cavity. At the same time, it can be seen from any of the above schemes that an air outlet is also provided on the rear wall air duct 104, and the air outlet is provided with multiple groups of hole structures, and the multiple groups of hole structures can realize horizontal layered and vertical layered output as needed; a heat conduction air zone 1041 is provided on the rear wall air duct 104, and a fan is installed in the heat conduction air zone 1041.
[0060] An optional solution of this embodiment is that the top wall 1021, the left side wall 1031 and the right side wall 1033 of the inner container are smoothly connected in sequence to form an integrated structure of a U-shaped plate.
[0061] It should be noted that a U-shaped plate structure is formed between the left side wall 1031, the right side wall 1033 and the top wall 1021 of this embodiment, which is easy to install, has a simple structure, and is convenient for forming the air outlet on the side wall.
[0062] An optional solution of this embodiment is that a rear heating pipe 106 is provided in front of the rear wall of the inner pot; and / or a top heating pipe 105 is provided below the top wall 1021 of the inner pot.
[0063] An optional solution of this embodiment is that each air duct is a hollow structure with a volume gradually decreasing from the inside to the outside.
[0064] It should be noted that the solution of this embodiment is mainly to set each side wall of the inner pot inside the oven body 100 as a heating air duct, such as Figure 1 -4 As shown in any view, wind curtains in multiple directions can be superimposed; at the same time, Figure 5 , Figure 6 As shown, it is a cross-sectional schematic diagram of the internal cavity structure of each heating air duct and a schematic diagram of the air outlet direction and air outlet volume; preferably, the cross-sectional schematic diagrams of each heating air duct in this embodiment are all triangular structures.
[0065] An optional solution of this embodiment is that the U-shaped plate 103 includes a bottom wall 1021 located in the inner tank and a left side wall 1031 and a right side wall 1033 located opposite to each other in the inner tank. The left side wall 1031, the bottom wall 1032 and the right side wall 1033 are smoothly connected in sequence to form a U-shaped ventilation and heating plate, which is an integrated structure.
[0066] Specifically, a top wall air duct edge 1023 is provided at the edge of the top wall 1021 , and a rear wall air duct edge 1043 is provided at the edge of the rear wall air duct 104 .
[0067] An optional solution of this embodiment is that a plurality of groups of air outlets are dispersedly provided on the rear wall air duct 104 .
[0068] An optional solution of this embodiment is that each heating tube is fixedly connected to the inner tank.
[0069] Specifically, the hole structures of the multiple groups of air outlets on the U-shaped plate 103 are evenly arranged in rows; the aperture of each row of hole structures gradually increases from the inside to the outside; the shape and structure arrangement of the hole structures of each air outlet are the same.
[0070] It should be pointed out that the principle of the air curtain uniformity heating system of this embodiment is mainly to give priority to heating the heating tube. The heating tube can be set at various positions of the inner pot inside the oven body 100 as needed, and horizontal or vertical air curtains are generated at different positions of each heating air duct, thereby realizing superimposed heating of the heating area at the uniform position; then, through the gradual opening of each heating air duct, the wind pressure at various angles and positions is taken into account, so that the wind speed and air volume at each point are relatively uniform and consistent. Finally, through the different designs of superposition and air duct angles and sizes, the final superimposed uniform heating effect is achieved.
[0071] The optional solution of this embodiment is as follows: Figure 2As shown in FIG. 4 , the hole structures of the top wall air outlet 1022, the left wall air outlet 10311, the bottom wall air outlet 10321 and the right wall air outlet 10331 are all circular through holes. However, in order to achieve the wind curtain superposition effect, it is not limited to the above-mentioned ventilation hole shapes, but can also be square, triangular, elliptical or special-shaped openings, as long as the relative set positions are gradually enlarged from the inside to the outside and change evenly in rows and columns.
[0072] The embedded electric oven air curtain heating system of this embodiment is adopted. When in use, the heating system of this scheme can be used as an independent heat source or as an auxiliary heat source for heating food in the electric oven. When in use, the wind system provides hot air, and the hot air is blown out through various positions of the heating air duct respectively, generating horizontal or vertical wind curtains at the air ducts at different positions of the inner pot cavity, and the different wind curtains formed by the air ducts in various directions are superimposed, so that the food in the electric oven can be evenly heated; specifically, the wind system is connected with the heating air duct to realize the blowing of hot air in different directions. The food is located in the heating area of the inner pot, and the hot air blown out in different directions can act on the heating area to achieve uniform heating of the food.
[0073] Embodiment 2
[0074] like Figure 1 As shown, it is a schematic diagram of the structure of the embedded electric oven provided in this embodiment. The embedded electric oven provided in this embodiment is provided with the embedded electric oven air curtain heating system of the above-mentioned embodiment 1. The embedded electric oven using this solution can achieve uniform heating by superimposing air ducts at different positions inside the embedded electric oven, achieve wind superposition in horizontal and vertical directions, and achieve overall wind and heat uniformity configuration through turbulence, thereby achieving uniform distribution of heat and uniform baking of food.
[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An embedded electric oven air curtain heating system, characterized in that: It comprises a wind power system and a heating air duct, wherein the wind power system provides hot air for heating to the interior of the oven body (100) through the heating air duct; The heating air duct comprises an outer shell and is formed between the outer shell (101) and the inner liner, and is connected to the inner liner cavity through an air outlet, wherein the air outlet comprises at least a vertical air outlet and a horizontal air outlet, and extension lines of the air outlet in the horizontal direction and the vertical direction are staggered with each other; The air outlets on each side wall are on the same level as a whole, and the wind is output in layers, forming horizontal and vertical layered arrangements; The wind power system is a wind power system with a heating pipe, which generates hot air that passes through the heating air duct and then blows into the inner tank cavity through the air outlet, and forms a wind curtain in the horizontal and vertical directions; The air outlet on each side wall is a multi-layered hole structure, and the aperture of the multi-layered hole structure gradually decreases from the outside to the inside.
2. The embedded electric oven air curtain heating system according to claim 1, characterized in that: The heating air duct is a heating air duct connected to any one, two or more side walls of the inner container, and the air outlet is provided on the heating air duct.
3. The embedded electric oven air curtain heating system according to claim 2, characterized in that: The air outlets of each side wall are generally located on the same level, forming a horizontal layer arrangement and a vertical layer arrangement.
4. The embedded electric oven air curtain heating system according to claim 3, characterized in that: The vertical cross-sectional shape of the heating air duct connected to each side wall is composed of a triangular structure whose size gradually increases from one end to the other end.
5. The embedded electric oven air curtain heating system according to claim 3, characterized in that: The top wall (1021) of the inner container and the left side wall (1031) and the right side wall (1033) of the inner container are all provided with air outlets, and the top wall (1021), the left side wall (1031) and the right side wall (1033) of the inner container are all provided with corresponding heating air ducts connected with the air outlets of the side walls, and the food to be baked at the bottom of the inner container is heated by the hot air of the multi-directional air curtain blown out by the top wall (1021), the left side wall (1031) and the right side wall (1033) for heating and baking.
6. The embedded electric oven air curtain heating system according to claim 3, characterized in that: The ratio of the thickness of the layer where the aperture of the air outlet is located to the distance between two adjacent layers is 0.25-1.
7. The embedded electric oven air curtain heating system according to claim 5, characterized in that: A rear wall air duct (104) is arranged on the outer side of the rear wall of the inner container, and the rear wall air duct (104) is respectively connected to the air ducts of the top wall (1021), the left side wall (1031) and the right side wall (1033) of the inner container.
8. The embedded electric oven air curtain heating system according to claim 5, characterized in that: The top wall (1021), the left side wall (1031) and the right side wall (1033) of the inner container are smoothly connected in sequence to form an integrated structure of a U-shaped plate.
9. The embedded electric oven air curtain heating system according to claim 3, characterized in that: A rear heating pipe (106) is arranged in front of the rear wall of the inner container; And / or, a top heating tube (105) is provided below the inner container top wall (1021).
10. A built-in electric oven, characterized in that: The embedded electric oven air curtain heating system is provided with the above-mentioned any one of claims 3 to 9.