Oven

Abstract

The invention relates to the technical field of ovens, in particular to an oven. An oven comprises an inner container provided with a fixed side plate, and the fixed side plate corresponds to an opening of the inner container; the fan cover is arranged in the containing space of the inner container, the fan cover is fixedly connected with the fixing side plate, a heating space is formed by the fan cover and the fixing side plate, the fan cover is provided with an air inlet plate, the air inlet plate and the fixing side plate are correspondingly arranged, the air inlet plate is provided with an air inlet part, the air inlet part is provided with a plurality of air inlet holes, and the air inlet holes are communicated with the heating space. The air inlet part is concavely arranged towards the fixed side plate; and the fan assembly is used for sucking air in the accommodating space into the heating space. The invention provides an oven to solve the problems that according to the design of the oven, hot air in a fan cover is extruded into an inner container, the air inlet position of the inner container is usually arranged in a flat plate mode, the hot air running speed is low, the food baking efficiency is low, and the energy consumption loss is large.

Description

Technical Field

[0001] This invention relates to the field of oven technology, and more specifically to an oven. Background Technology

[0002] Built-in ovens are an upgraded version of small ovens. From the increase in kitchen facilities to integrated kitchen appliances and then to the complete kitchen; from traditional closed kitchens to open kitchens, the kitchen revolution has driven continuous innovation in kitchen appliances. Built-in ovens make kitchens less cluttered, leading to a clean, convenient, and efficient modern kitchen lifestyle.

[0003] Currently, built-in ovens have hot air fans in their inner walls. The heat transfer method of the hot air fan is heat convection, and the efficiency of heat convection can be improved by increasing the flow rate and the heat exchange area.

[0004] Currently, existing oven designs force hot air from inside the fan shroud into the inner cavity. The air intake of the inner cavity is often a flat plate, which results in slow hot air circulation, low baking efficiency, and significant energy loss. Summary of the Invention

[0005] This invention provides an oven that addresses the problem that oven designs often force hot air from inside the fan shroud into the inner cavity, where the air inlet is typically a flat plate, resulting in slow hot air circulation, low baking efficiency, and significant energy loss.

[0006] In a first aspect, the present invention provides an oven, comprising: The inner liner is provided with a fixed side plate, which is configured to correspond to the opening of the inner liner; A fan cover is provided within the accommodating space of the inner liner. The fan cover is fixedly connected to the fixed side plate. The fan cover and the fixed side plate form a heating space. The fan cover is provided with an air inlet plate, which is correspondingly arranged with the fixed side plate. The air inlet plate is provided with an air inlet section, which is provided with a plurality of air inlet holes. The air inlet section is recessed toward the fixed side plate. A fan assembly is disposed within the heating space, the fan assembly being used to draw air from the receiving space into the heating space.

[0007] The air inlet allows air to flow from the inner cavity into the heating space. The air inlet is recessed towards the fixed side panel, which improves the suction efficiency of the fan assembly in the heating space (by 30%-70%). This speeds up the airflow throughout the inner cavity, allowing the air that has exchanged heat with the food in the oven to be quickly drawn into the heating space for heating, thus improving the oven's baking efficiency and reducing energy consumption.

[0008] In one optional embodiment, the fan cover is provided with an air outlet side plate, the air outlet side plate is provided with an air outlet, and a gap is left between the air outlet and the first side plate of the inner liner.

[0009] In one optional embodiment, an air outlet channel is formed between the fixed side plate and the air inlet plate, and the cross-section of the air outlet channel gradually decreases towards the air outlet.

[0010] In one optional embodiment, the fixed side plate is provided with a first guide section, and the air inlet plate is provided with a second guide section, the first guide section and the second guide section forming the air outlet channel.

[0011] In one optional embodiment, the air inlet plate is further provided with a horizontal flow section, which is located between the air outlet and the second guide section.

[0012] In one optional embodiment, a rotating air guide plate is further included, which is rotatably connected to the fan cover and is located outside the air outlet.

[0013] In one optional embodiment, the fan cover is provided with arc-shaped airflow guides at each of the four corners.

[0014] In one optional embodiment, the inner liner further includes a first side plate, which is fixedly connected to the fixed side plate, and an arc-shaped drainage portion is provided at the connection between the first side plate and the fixed side plate.

[0015] In one alternative embodiment, the fan assembly includes a rotating fan located within the heating space.

[0016] In one alternative embodiment, a camera is also included, which is disposed on the top plate of the inner liner. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the oven liner and fan cover according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the fixed side plate, fan cover, and air guide assembly according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the fan cover and air guide assembly according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the fan cover and air guide assembly according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the fan cover according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the oven liner and fan cover from another angle according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the flow of hot air in the air outlet channel according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the flow of hot air in the inner liner after it exits the air outlet channel, according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Inner liner; 101. Fixed side plate; 1011. Arc-shaped air intake section; 1012. First air intake section; 102. First side plate; 103. Second side plate; 104. Top plate; 1041. Placement part; 105. Bottom plate; 106. Accommodation space; 2. Fan cover; 201. Air inlet plate; 2011. Air inlet; 2012. Second air intake section; 2013. Protruding air intake section; 2014. Horizontal flow section; 202. Arc-shaped air intake section; 203. Air outlet; 204. Heating space; 205. Air outlet side plate; 206. Fixed part; 207. Air outlet channel; 3. Air guide assembly; 301. Rotating air guide plate; 302. Rotating shaft; 4. Fan assembly; 401. Rotating fan; 402. Power component; 5. Heating tube. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0022] According to an embodiment of the present invention, an oven is provided, comprising: an inner cavity 1, wherein the inner cavity 1 is provided with a fixed side plate 101, the fixed side plate 101 being correspondingly disposed with respect to the opening of the inner cavity 1; a fan cover 2, wherein the fan cover 2 is disposed within the receiving space 106 of the inner cavity 1, the fan cover 2 being fixedly connected to the fixed side plate 101, the fan cover 2 and the fixed side plate 101 forming a heating space 204, the fan cover 2 being provided with an air inlet plate 201, the air inlet plate 201 being correspondingly disposed with respect to the fixed side plate 101, the air inlet plate 201 being provided with an air inlet portion 2011, the air inlet portion 2011 being provided with a plurality of air inlet holes, the air inlet portion 2011 being recessed toward the fixed side plate 101; and a fan assembly 4, disposed within the heating space 204, the fan assembly 4 being used to draw air from the receiving space 106 into the heating space 204.

[0023] The air inlet allows air to flow from the inner cavity 1's accommodating space 106 into the heating space 204. The air inlet 2011 is recessed towards the fixed side plate 101. This recessed design improves the air intake efficiency of the fan assembly 4 in the heating space 204 (by 30%-70%), thereby accelerating the airflow speed within the entire inner cavity 1. This allows the air, after exchanging heat with the food inside the oven, to be quickly drawn into the heating space 204 for heating, improving the oven's baking efficiency and reducing energy consumption.

[0024] It should be noted that the air inlet 2011 in this embodiment is circular, and the center of the air inlet 2011 is closest to the fixed side plate 101, forming an annular recessed shape. In this embodiment, the inner liner 1 is an enamel inner liner 1 with a high-gloss surface.

[0025] In one embodiment, such as Figure 2 , Figure 4 and Figure 5 As shown, the fan cover 2 is provided with an air outlet side plate 205, and the air outlet side plate 205 is provided with an air outlet 203. There is a gap between the air outlet 203 and the first side plate 102 of the inner liner 1. The air flowing out through the air outlet 203 reaches the first side plate 102, and is blocked and guided by the first side plate 102 to continue flowing into the accommodating space 106 of the inner liner 1.

[0026] In one embodiment, such as Figure 4 , Figure 5 and Figure 7 As shown, an air outlet channel is formed between the fixed side plate 101 and the air inlet plate 201. The cross-section of the air outlet channel gradually decreases towards the air outlet 203. The air outlet channel is formed between the fixed side plate 101 and the air inlet plate 201 of the fan cover 2. Since the cross-sectional area of ​​the air outlet channel is smaller closer to the air outlet 203, the air outlet speed will be increased (by about 50%-150%), thereby accelerating the circulation speed of the internal hot air.

[0027] In one embodiment, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the fixed side plate 101 is provided with a first guide section 1012, and the air inlet plate 201 is provided with a second guide section 2012. The first guide section 1012 and the second guide section 2012 form an air outlet channel. In this embodiment, as... Figure 4 As shown, both the first guide section 1012 and the second guide section 2012 are inclined to form an air outlet channel, so that the cross-sectional area of ​​the air outlet channel is smaller as it gets closer to the air outlet 203.

[0028] In one embodiment, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the air inlet plate 201 also has a horizontal flow section 2014, which is located between the air outlet 203 and the second guide section 2012. In this embodiment, as... Figure 4 As shown, by setting the horizontal flow section 2014, which is flat, and the horizontal flow section 2014 is correspondingly set with the first guide section 1012, the air flowing out of the air outlet 203 moves along the direction of the first guide section 1012 to blow in a direction away from the fixed side plate 101 (i.e., towards the receiving direction of the inner liner 1), thus preventing the air blown out of the air outlet 203 from blowing in the direction of the fixed side plate 101 and improving the air flow efficiency.

[0029] In one embodiment, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, it also includes a rotating air guide plate 301, which is rotatably connected to the fan cover 2. The rotating air guide plate 301 is located outside the air outlet 203. By rotating the rotating air guide plate 301, the hot air flow rate at the air outlet 203 is changed.

[0030] In this embodiment, as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it also includes an air guide assembly 3, which includes a rotating shaft 302 and a rotating air guide plate 301. The rotating shaft 302 is fixed to the outside of the air outlet 203, and the rotating air guide plate 301 is rotatably connected to the rotating shaft 302. The rotating shaft 302 is equipped with a miniature rotating motor for controlling the movement of the rotating air guide plate 301, so that the rotating air guide plate 301 can rotate relative to the air outlet 203.

[0031] In one embodiment, such as Figure 2 , Figure 3As shown, the fan shroud 2 has arc-shaped airflow guides 202 at each of its four corners; that is, one arc-shaped airflow guide 202 is provided at each corner. The arc-shaped airflow guides 202 facilitate the flow of hot air at the four corners of the fan shroud 2. In this embodiment, as... Figure 2 , Figure 3 As shown, the fan cover 2 of this application is considered to be octagonal, so that hot air forms on the surface of the fan cover 2 as... Figure 2 The air circulation shown allows hot air to rotate smoothly at each corner of the air inlet plate 201 of the fan cover 2. Compared with the fan cover 2 with four corners, it has the advantages of no dead angles and high utilization rate.

[0032] In this embodiment, as Figure 3 , Figure 5 As shown, the air inlet plate 201 is also provided with an annular protruding guide portion 2013, and the protruding direction of the protruding guide portion 2013 is opposite to the concave direction of the air inlet portion 2011. That is, the protrusion of the protruding guide portion 2013 is away from the fixed side plate 101. This arrangement allows the air in the accommodating space 106 to enter the air inlet hole through the guide portion 2013, and also strengthens the structural strength of the air inlet plate 201.

[0033] In this embodiment, as Figure 2 , Figure 3 As shown, the fan cover 2 is also provided with fixing parts 206 at the four corners. The fixing parts 206 are provided with through holes. The fan cover 2 is connected to the fixing side plate 101 after passing through the through holes with fasteners.

[0034] In one embodiment, such as Figure 1 , Figure 4 , Figure 6 and Figure 8 As shown, the inner liner 1 also includes a first side plate 102, which is fixedly connected to a fixed side plate 101. An arc-shaped airflow guide is provided at the connection between the first side plate 102 and the fixed side plate 101. After the hot air flowing out of the air outlet 203 reaches the arc-shaped airflow guide, part of the hot air is refracted through the first side wall of the inner liner 1 to the center of the inner liner 1 to heat the food (high-heat hot air). Another part of the hot air is blown vertically towards the door at the opening of the accommodating space 106 and refracted to the center of the inner liner 1, covering the food 360 degrees. Then, it is drawn into the fan hood 2 through the concave air inlet 2011 for reheating, forming a closed loop.

[0035] In this embodiment, as Figure 1 , Figure 6As shown, the inner liner 1 also includes a second side plate 103, a top plate 104, and a bottom plate 105. The second side plate 103 and the first side plate 102 are respectively located on both sides of the fixed side plate 101, and the top plate 104 is located on the top of the fixed side plate 101. That is, the first side plate 102, the second side plate 103, the fixed side plate 101, the top plate 104, and the bottom plate 105 enclose and form an accommodating space 106 with an opening. The opening is provided with the oven door, and the fixed side plate 101 and the door are correspondingly arranged.

[0036] In one embodiment, such as Figure 4 As shown, the fan assembly 4 includes a rotating fan 401 located within the heating space 204. In this embodiment, the fan assembly 4 also includes a power component 402, which is located on the side of the fixed side plate 101 facing away from the fan cover 2, and drives the rotating fan 401 to rotate.

[0037] In this embodiment, as Figure 4 As shown, the heating space 204 also includes a heating tube 5, which is circular. The circular heating tube 5 is located on the outer periphery of the rotating fan 401 to heat the air entering the heating space 204, and the heated air becomes hot air.

[0038] In one embodiment, such as Figure 1 , Figure 6 As shown, the oven also includes a camera, which is mounted on the placement portion 1041 of the top plate 104 of the inner liner 1. In this embodiment, the oven also includes a middle cover, and the placement portion 1041 is positioned slightly lower than the top plate 104. The camera is placed in the space formed between the middle cover and the placement portion 1041 of the top plate 104, so that the camera can capture images of the oven interior, the food on the surface of the bottom plate 105, and the fan cover 2 and the rotating air guide plate 301.

[0039] To achieve automatic control, the inner liner 1 is also equipped with a temperature sensor and a controller. The controller is connected to the micro rotary motor, camera, temperature sensor, heating tube 5 and power component 402 respectively.

[0040] In the specific implementation process, the oven door is closed, the controller issues a command, the heating tube 5 heats, the power component 402 drives the rotating fan 401 to rotate, and the micro rotating motor drives the rotating air guide plate 301 to rotate to the corresponding angle, so that the air in the accommodating space 106 enters the heating space 204 through the air inlet under the action of the rotating fan 401, and then flows out of the air outlet 203 along the air outlet channel. Under the action of the arc-shaped air guide, it blows towards the middle position of the door or the accommodating space 106, thereby forming a hot air circulation.

[0041] It should be noted that the rotating air guide plate 301 on the fan cover 2 in this embodiment can be adjusted in angle according to the stage and type of food being roasted. The rotation speed of the fan 401, along with the rotation speed of the fan, makes the temperature field in the inner cavity 1 more suitable for different stages (similar to the takeoff and flight of an airplane). For example, during the preheating stage when roasting large pieces of meat, the rotation speed of the fan 401 is adjusted to 2000-2500 rpm, and the opening of the rotating air guide plate 301 is opened to a maximum of 90 degrees. The heat from the heating element 5 enters the inner cavity 1 without obstruction, quickly raising the temperature of the inner cavity 1. When the temperature slowly rises to the target temperature, the rotation speed of the fan 401 drops to 1300-1800 rpm (depending on the type of meat), and the angle of the rotating air guide plate 301 gradually becomes 10 degrees. During this process, the temperature field in the inner cavity 1 gradually becomes more uniform. Food is placed inside, and the machine continues to cook at the corresponding speed and angle. After cooking for 30 minutes, the speed is further reduced to 1000-1500 rpm. This prevents the rapid hot air from blowing onto the food surface and causing it to burn, allowing the surface to slowly brown. When baking cakes or similar foods, the preheating stage is consistent. After stabilizing, the speed is reduced to 1000-1500 RPM (depending on the type of food). The angle of the rotating air guide plate remains at 10 degrees. After working for 15-20 minutes, when the food is browning, the speed is further reduced to 800-1200 RPM to slow down the hot air flow and allow the food surface to brown slowly, preventing it from burning.

[0042] The oven provided by the present invention has the following advantages: (1) The air inlet allows the air in the accommodating space 106 of the inner cavity 1 to flow into the heating space 204. The air inlet 2011 is recessed towards the fixed side plate 101. The recessed setting will improve the suction efficiency of the fan assembly 4 in the heating space 204 (by 30%-70%), thereby accelerating the air flow speed in the entire inner cavity 1. After exchanging heat with the food in the oven, the air will be quickly drawn into the heating space 204 for heating, improving the baking efficiency of the oven and reducing energy consumption; (2) An air outlet channel is formed between the fixed side plate 101 and the air inlet plate 201 of the fan cover 2. Since the cross-sectional area of ​​the air outlet channel is smaller closer to the air outlet 203, the air outlet speed will be increased (by about 50%-150%), thereby accelerating the circulation speed of the internal hot air; (3) The horizontal flow section 2014 and the first guide section 1012 To correspond to the setting, the air flowing out of the air outlet 203 moves along the direction of the first guide section 1012 to blow in the direction away from the fixed side plate 101 (i.e., towards the accommodating direction of the inner liner 1), so as to avoid the air blowing out of the air outlet 203 towards the direction of the fixed side plate 101 and improve the air flow efficiency; (4) The rotating guide plate 301 is set outside the air outlet 203. By rotating the guide plate 301, the hot air flow rate at the air outlet 203 is changed; (5) After the hot air flowing out of the air outlet 203 reaches the arc-shaped guide section, part of the hot air is refracted through the first side wall of the inner liner 1 to the center of the inner liner 1 to heat the food (high heat hot air), and another part of the hot air is blown vertically towards the door at the opening of the accommodating space 106 and refracted to the center of the inner liner 1. After covering the food 360 degrees, it is drawn into the fan hood 2 from the concave air inlet 2011 of the fan hood 2 for reheating, forming a closed loop.

[0043] As an alternative implementation, the number of air outlets 203 of the fan cover 2 can also be 2, 3, or 4. That is, in addition to the air outlets 203 corresponding to the first side plate 102, the other air outlet side plates 205 are also provided with corresponding air outlets 203. One air outlet side plate 205 corresponds to one air outlet 203, and one air outlet 203 corresponds to one air guide assembly 3.

[0044] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An oven, characterized in that, The utility model relates to a kind of air purifiers, including: Inner container (1), the inner container (1) is equipped with fixed side plate (101), the fixed side plate (101) is set corresponding with the opening of the inner container (1); Fan cover (2), the fan cover (2) is located in the containing space (106) of the inner container (1), the fan cover (2) is fixedly connected with the fixed side plate (101), the fan cover (2) is formed with heating space (204) with the fixed side plate (101), the fan cover (2) is equipped with air inlet plate (201), the air inlet plate (201) is set corresponding with the fixed side plate (101), the air inlet plate (201) is equipped with air inlet portion (2011), the air inlet portion (2011) is equipped with several air inlet holes, the air inlet portion (2011) is recessed to fixed side plate (101); Fan assembly (4), located in the heating space (204), the fan assembly (4) is inhaled into the containing space (106) in the fan to the heating space (204).

2. The oven according to claim 1, characterized in that, The fan cover (2) is equipped with air outlet side plate (205), the air outlet side plate (205) is equipped with air outlet (203), and the air outlet (203) is left with a gap from the first side plate (102) of the inner container (1).

3. The oven according to claim 2, characterized in that, The fixed side plate (101) and the air inlet plate (201) form an air outlet flow channel, and the cross section of the air outlet flow channel gradually decreases towards the air outlet (203).

4. The oven according to claim 3, characterized in that, The fixed side plate (101) is equipped with a first flow guide section (1012), the air inlet plate (201) is equipped with a second flow guide section (2012), and the first flow guide section (1012) and the second flow guide section (2012) form the air outlet flow channel.

5. The oven according to claim 4, characterized in that, The air inlet plate (201) is also provided with a horizontal flow section (2014), and the horizontal flow section (2014) is located between the air outlet (203) and the second flow guide section (2012).

6. The oven of claim 4, wherein, It also includes a rotating air deflector (301), which is rotatably connected to the fan cover (2), and the rotating air deflector (301) is located outside the air outlet (203).

7. The oven of claim 1, wherein, The fan cover (2) is provided with an arc-shaped flow guide portion (202) at each of the four corners.

8. The oven of claim 1, wherein, The inner container (1) further includes a first side plate (102), which is fixedly connected with the fixed side plate (101), and an arc-shaped flow guide portion is arranged at the connection between the first side plate (102) and the fixed side plate (101).

9. The oven of claim 1, wherein, The fan assembly (4) includes a rotating fan (401), and the rotating fan (401) is located in the heating space (204).

10. The oven of claim 1, wherein, It also includes a camera, which is arranged on a placement portion (1041) of a top plate (104) of the inner container (1).

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