Convection structure applied to oven

Abstract

The convection structure comprises an oven inner cavity, a convection plate and a centrifugal fan set, the convection plate is arranged on the rear side of the oven inner cavity, an air outlet hole set is formed in the middle of the convection plate, air inlet holes are formed in the two sides of the air outlet hole set respectively, first flow guide plates facing the outer side are obliquely arranged on the inner sides of the air inlet holes, and the centrifugal fan set is arranged on the outer side of the first flow guide plates. A second flow guide plate facing the inner side is obliquely arranged on the outer side of the air inlet hole, and the centrifugal fan unit is arranged on the rear side of the convection plate. Through the synergistic effect of the air outlet hole set in the middle, the air inlet holes in the two sides and the centrifugal fan set, circulating air channels on the left side and the right side are formed in the inner cavity of the oven, three-dimensional circulation is formed, all corners of the inner cavity of the oven are covered, low-temperature dead corners of a traditional oven are eliminated, and food is heated more evenly.

Description

Technical Field

[0001] This utility model relates to the field of ovens, and in particular to a convection structure applied to ovens. Background Technology

[0002] As a common food processing device, the core function of an oven is to bake, roast, or heat food through heat transfer. Traditional ovens typically rely on heat radiation generated by heating elements (resistance wires or quartz tubes) and natural air convection within the cavity to transfer heat. However, natural convection is inefficient and results in uneven heat distribution, leading to significant differences in heating different parts of the food, such as a burnt surface while the inside remains uncooked, or requiring frequent adjustments to the baking tray to achieve even heating, resulting in a poor user experience. Utility Model Content

[0003] The purpose of this invention is to provide a convection structure for use in ovens to solve the above-mentioned problems.

[0004] According to one aspect of the present invention, a convection structure for an oven is provided, comprising: an oven cavity, a convection plate, and a centrifugal fan unit. The convection plate is disposed on the rear side of the oven cavity, an air outlet group is disposed in the middle of the convection plate, air inlets are disposed on both sides of the air outlet group, a first guide plate facing outward is disposed inclined on the inner side of the air inlet, a second guide plate facing inward is disposed inclined on the outer side of the air inlet, and the centrifugal fan unit is disposed on the rear side of the convection plate.

[0005] In some embodiments, the air outlet group includes two parallel air outlet grilles, each air outlet grille having multiple annular air outlet grooves with gradually increasing radii, the edges of which are arc-shaped.

[0006] In some embodiments, the centrifugal fan unit includes two centrifugal fans, each of which is disposed on the rear side of the air outlet grille.

[0007] In some embodiments, the output end of the centrifugal fan is provided with a guide vane, the guide vane including a base plate parallel to the air outlet grille, and a plurality of guide vanes perpendicular to the base plate are evenly distributed along the edge of the base plate.

[0008] In some embodiments, the tilt angle of the first guide vane and the second guide vane is 30° to 60°.

[0009] In some embodiments, two air inlets are provided on the left and right sides of the air outlet group along the vertical direction.

[0010] In some embodiments, the convection plate is vertically disposed at the rear side of the oven cavity.

[0011] Compared with the prior art, the beneficial effects of this application are as follows:

[0012] This application utilizes the combined action of the central air outlet group, the air inlets on both sides, and the centrifugal fan group to form circulating air channels on both sides inside the oven cavity, creating a three-dimensional circulation that covers every corner of the oven cavity, eliminating the "low-temperature dead zones" of traditional ovens, and making the food heat more evenly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the convection plate of this utility model;

[0016] Figure 4 for Figure 3 Enlarged view of A in the middle;

[0017] Figure 5 This is a schematic diagram of the centrifugal fan of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] refer to Figures 1 to 5 This application provides a convection structure for an oven, including: an oven cavity, a convection plate 1, and a centrifugal fan unit 2. The convection plate 1 is disposed on the rear side of the oven cavity. An air outlet group 3 is disposed in the middle of the convection plate 1. Air inlets 4 are disposed on both sides of the air outlet group 3. A first guide plate 5 facing outward is disposed on the inner side of the air inlet 4. A second guide plate 6 facing inward is disposed on the outer side of the air inlet 4. The centrifugal fan unit 2 is disposed on the rear side of the convection plate 1.

[0020] The first guide plate allows the air inlet 4 to guide and draw the gas from the outer edge of the oven cavity into the centrifugal fan unit 2 during air intake. Combined with the air outlet group 3 located in the middle, it forms a circulating air duct between the oven cavity and the centrifugal fan unit 2. The second guide plate 6 can quickly guide the gas drawn in by the air inlet 4 to the centrifugal fan unit 2.

[0021] In some embodiments, the air outlet group 3 includes two parallel air outlet grilles, each air outlet grille having multiple annular air outlet grooves 7 with gradually increasing radii. The edges of the annular air outlet grooves 7 have arc-shaped structures 8, and the annular air outlet grooves 7 and their arc-shaped edges 8 work together to expand the angle at which the air is blown out.

[0022] In some embodiments, the centrifugal fan unit 2 includes two centrifugal fans 9, each centrifugal fan 9 being disposed on the rear side of the air outlet grille, so that gas circulation is provided on both sides of the inner cavity of the oven.

[0023] In some embodiments, the output end of the centrifugal fan 9 is provided with a guide fan blade, which includes a base plate 10 parallel to the air outlet grille. Multiple guide vanes 11 perpendicular to the base plate 10 are evenly distributed on the edge of the base plate 10, which can quickly draw in the gas from the air inlets 4 on both sides and blow it vertically toward the air outlet group 3, thereby improving the circulation efficiency.

[0024] In some embodiments, the tilt angle of the first guide vane and the second guide vane 6 is 30° to 60°.

[0025] In some embodiments, two air inlets 4 are provided on the left and right sides of the air outlet group 3 in the vertical direction to provide circulation convection efficiency.

[0026] In some embodiments, the convection plate 1 is vertically disposed at the rear side of the oven cavity, so that the blown gas...

[0027] The convection principle of this application is as follows: When the oven is heating, taking the left side of the oven cavity as an example, the gas on the left side of the oven cavity is drawn in by the centrifugal fan 9 along the air inlet 4 on the left side, and then blown out by the centrifugal fan 9 along the air outlet grille on the left side; the same applies to both sides of the oven cavity, so that the oven cavity forms a circulating air duct on the left and right sides, forming a three-dimensional circulation that covers every corner of the oven cavity, eliminating the "low temperature dead corner" of traditional ovens, and making the food heat more evenly.

[0028] This application utilizes the combined action of the central air outlet group 3, the two side air inlets 4, and the centrifugal fan group 2 to form a circulating air duct on both sides inside the oven cavity, creating a three-dimensional circulation that covers every corner of the oven cavity, eliminating the "low-temperature dead corners" of traditional ovens, and making the food heat more evenly.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A convection structure for use in an oven, characterized in that, include: The oven cavity includes a convection plate and a centrifugal fan unit. The convection plate is located on the rear side of the oven cavity. An air outlet group is provided in the middle of the convection plate. Air inlets are provided on both sides of the air outlet group. A first guide plate facing outward is inclinedly provided on the inner side of the air inlet. A second guide plate facing inward is inclinedly provided on the outer side of the air inlet. The centrifugal fan unit is located on the rear side of the convection plate.

2. The convection structure applied to an oven according to claim 1, characterized in that, The air outlet assembly includes two parallel air outlet grilles, each grille having multiple annular air outlet grooves with gradually increasing radii, the edges of which are arc-shaped.

3. The convection structure applied to an oven according to claim 2, characterized in that, The centrifugal fan unit includes two centrifugal fans, each of which is located on the rear side of the air outlet grille.

4. The convection structure applied to an oven according to claim 3, characterized in that, The centrifugal fan is provided with a guide fan blade at its output end. The guide fan blade includes a base plate parallel to the air outlet grille, and multiple guide fan blades perpendicular to the base plate are evenly distributed along the edge of the base plate.

5. The convection structure applied to an oven according to claim 1, characterized in that, The tilt angle of the first guide vane and the second guide vane is 30° to 60°.

6. The convection structure applied to an oven according to claim 1, characterized in that, Two air inlets are provided on each of the left and right sides of the air outlet group along the vertical direction.

7. The convection structure applied to an oven according to claim 1, characterized in that, The convection plate is vertically disposed on the rear side of the oven cavity.

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