An oven structure

Abstract

The present invention relates to an oven structure, including an inner tank and a mounting plate, wherein the mounting plate is arranged above the inner tank and a gap is formed between the mounting plate and the upper surface of the inner tank, an air vent is provided on the top of the inner tank and can communicate with the top space of the mounting plate, the air vent is provided at the front of the top wall of the inner tank and arranged near the corner of the front opening of the inner tank, an opening corresponding to the air vent is provided on the mounting plate, and the opening is connected to the air vent through an air vent assembly. The present invention arranges the air vent on the inner tank of the oven at the front of the top wall of the inner tank and near the corner of the front opening of the inner tank, so as to be as far away as possible from the heating structure and the air inlet and outlet structure on the rear side of the oven, and minimizes the influence of the air vent on the internal circulation of the oven while ensuring the balance of pressure and humidity in the inner tank of the oven, thereby improving the internal circulation of hot air in the inner tank of the oven, and thus improving the baking effect.

Description

Technical Field

[0001] The invention relates to the technical field of ovens, in particular to an oven structure capable of balancing and adapting the pressure and humidity in an oven inner container. Background Art

[0002] Currently, high-end ovens on the market generally have a vent above the oven inner tank, and a vent pipe is used to connect the inner tank with the air guide plate to achieve a balance between pressure and humidity in the oven inner tank.

[0003] For example, the Chinese patent application "An Oven Inner Tank Structure" (application number: 201610604898.2) with application publication number CN106063680A discloses a structure, which includes an inner tank shell for enclosing a baking cavity, a heater arranged in the inner tank shell, and a left baffle, a right baffle, and a rear baffle are respectively provided on the left side, right side, and rear side of the inner wall of the inner tank shell, and there is a gap between the middle part of the left baffle, the right baffle, and the rear baffle and the inner wall of the inner tank shell. The left baffle, the right baffle, and the rear baffle are arranged tightly against the inner wall of the inner tank shell on all sides, and a first hot air blower, a second hot air blower, and a third hot air blower are respectively provided between the left baffle, the right baffle, the rear baffle and the inner wall of the inner tank shell; air inlets are provided in the middle part of the left baffle, the right baffle, and the rear baffle, and air outlets are provided on the left and right sides of the left baffle, the right baffle, and the rear baffle.

[0004] The above-mentioned existing oven vents are generally opened in the middle of the upper mounting plate, and the vent pipe is a straight cylindrical pipe with a relatively simple structure. Since there is a heating pipe at the rear side of the oven inner tank, the heated air is blown into the inner tank through the fan arranged at the rear side of the hot air baffle. The vent is close to the hot air baffle, which easily causes the hot air to be discharged from the vent without sufficient circulation, resulting in higher temperature and pressure in the middle and lower parts of the oven, while the temperature and pressure near the vent at the upper part of the oven are lower, which affects the internal circulation of the hot air in the oven. In this way, when the oven is baking food in the upper and lower fire mode, the food is likely to be burnt in the middle while the surroundings are not colored, which affects the baking effect. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an oven structure which can improve the internal circulation in the oven inner tank and thus improve the baking effect in view of the current status of the prior art.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: an oven structure, including an inner tank and a mounting plate, the mounting plate is arranged above the inner tank and a gap is formed between the mounting plate and the upper surface of the inner tank, and the top of the inner tank is provided with an air vent that can be connected with the top space of the mounting plate, characterized in that: the air vent is opened at the front part of the top wall of the inner tank and is arranged near the corner of the front opening of the inner tank, the mounting plate is provided with an opening corresponding to the air vent, and the opening is connected to the air vent through a ventilation pipe assembly.

[0007] In the above scheme, the ventilation pipe assembly includes a ventilation pipe, a ventilation plate and a liquid receiving plate, the lower end of the ventilation pipe is connected to the ventilation port, the upper end of the ventilation pipe is located below the mounting plate, the ventilation plate and the liquid receiving plate are overlapped and arranged on the opening of the mounting plate, and a liquid receiving cavity is formed between the ventilation plate and the liquid receiving plate, the liquid receiving plate is provided with a first opening connected to the upper end of the ventilation pipe, and the ventilation plate is provided with a second opening for gas to pass through. With the above structure, in the process of hot air carrying a large amount of water vapor entering the space above the mounting plate through the ventilation pipe, the water vapor liquefies and stays in the liquid receiving cavity after entering, and the excess gas passes through the second opening after passing through the liquid receiving cavity and enters the upper part of the mounting plate. The overlapping structure of the ventilation plate and the liquid receiving plate itself can prevent the hot air from being discharged too fast and affecting the heat accumulation in the inner pot, and on the other hand, the water staying in the liquid receiving cavity can prevent the problem of too low humidity in the inner pot caused by the discharge of a large amount of water vapor in the inner pot, thereby maintaining the heat circulation and humidity stability in the inner pot and improving the baking effect.

[0008] Preferably, the middle part of the liquid receiving plate is recessed downward to form a first recessed portion, and the first recessed portion passes through the opening arrangement; the middle part of the air-permeable plate is recessed downward to form a second recessed portion, and the second recessed portion is located in the concave cavity of the first recessed portion, and the outer diameter of the second recessed portion is smaller than the inner diameter of the first recessed portion so that the outer surface of the second recessed portion and the inner surface of the first recessed portion together enclose the liquid receiving cavity. The first opening is provided on the bottom wall of the first recessed portion, and the second opening is provided on the peripheral wall of the second recessed portion. The above structure ensures the sealing of the connection between the liquid receiving plate and the air-permeable plate on the one hand, and on the other hand, forms a liquid receiving cavity structure that is convenient for accumulating water vapor without affecting the discharge of gas.

[0009] In order to ensure good sealing at the connection, the edge of the liquid receiving plate is placed on the upper surface of the mounting plate, and the edge of the ventilation plate is placed on the upper surface of the liquid receiving plate. The upper end of the ventilation pipe has a top plate, and a third opening is opened on the top plate, and the edge of the third opening has a guide ring that can extend into the first opening. The opening edge of the mounting plate has a surrounding edge that extends downward and surrounds the first lower concave portion.

[0010] In order to ensure a good seal at the connection, a protrusion is formed on the top wall of the inner container, which protrudes upward and extends into the lower port of the ventilation pipe. There are at least two ventilation ports, which are arranged at intervals on the protrusion. The lower edge of the ventilation pipe has an assembly ring that can be placed on the upper surface of the inner container and arranged around the protrusion.

[0011] Preferably, a hot air baffle is provided at the rear side of the inner pot, an air inlet is provided in the middle of the hot air baffle, an air outlet is provided at the edge of the hot air baffle, and a side edge of the air outlet has an air guide plate bent backwards. This structure is conducive to enhancing the air outlet efficiency of the oven outlet, thereby improving the internal circulation of the oven and ensuring the uniformity of the oven temperature field.

[0012] Compared with the prior art, the advantages of the present invention are: the present invention arranges the air vents on the oven inner tank at the front part of the inner tank top wall and close to the corners of the front opening of the inner tank, so as to be as far away from the heating structure and the air inlet and outlet structure on the rear side of the oven as possible. Under the premise of ensuring the balance of pressure and humidity in the oven inner tank, the influence of the air vents on the internal circulation of the oven is minimized, the internal circulation of hot air in the oven inner tank is improved, and the baking effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0014] Figure 2 for Figure 1 A cross-sectional view of

[0015] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0016] Figure 4 for Figure 2 A schematic diagram of the enlarged structure of part B;

[0017] Figure 5 for Figure 1 Schematic diagram of the partial decomposition structure. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 5 As shown, the oven structure of this embodiment includes an inner tank 1 and a mounting plate 2. The mounting plate 2 is arranged above the inner tank 1 through a mounting frame 4 and a gap 10 is formed between the mounting plate 2 and the upper surface of the inner tank 1. The gap 10 can be filled with thermal insulation cotton. A vent 11 is provided on the top of the inner tank 1 to communicate with the top space of the mounting plate 2. The vent 11 is provided at the front of the top wall of the inner tank 1 and is arranged near the corner of the opening 12 on the front side of the inner tank 1. An opening 21 corresponding to the vent 11 is provided on the mounting plate 2. The opening 21 is connected to the vent 11 through a ventilation pipe assembly 3.

[0020] In this embodiment, the ventilation pipe assembly 3 includes a ventilation pipe 31, a ventilation plate 32 and a liquid receiving plate 33. The top cross-sectional area of ​​the ventilation pipe 31 in this embodiment is smaller than the bottom cross-sectional area of ​​the ventilation pipe 31, so that the ventilation pipe 31 has a conical structure. The lower end 311 of the ventilation pipe 31 is connected to the ventilation port 11, and the upper end of the ventilation pipe 31 is located below the mounting plate 2. The ventilation plate 32 and the liquid receiving plate 33 are overlapped and arranged on the opening 21 of the mounting plate 2 and cover the opening 21, and a liquid receiving cavity 30 is formed between the ventilation plate 32 and the liquid receiving plate 33. The liquid receiving plate 33 is provided with a first opening 331 connected to the upper end of the ventilation pipe 31, and the ventilation plate 32 is provided with a second opening 321 for gas to pass through. In the process of hot air carrying a large amount of water vapor entering the space above the mounting plate 2 through the ventilation pipe 31, the water vapor liquefies and stays in the liquid receiving chamber 30, and the excess gas passes through the second opening 321 after passing through the liquid receiving chamber 30 to enter the top of the mounting plate 2. The overlapping structure of the ventilation plate 32 and the liquid receiving plate 33 can prevent the hot air from being discharged too quickly and affecting the heat accumulation in the inner pot 1. On the other hand, the water staying in the liquid receiving chamber 30 can prevent a large amount of water vapor from being discharged from the inner pot 1 and causing the humidity in the inner pot 1 to be too low, thereby maintaining the thermal circulation and humidity stability in the inner pot 1 and improving the baking effect.

[0021] In this embodiment, the middle part of the liquid receiving plate 33 is recessed downward to form a first recessed portion 330, and the first recessed portion 330 is arranged through the opening 21; the middle part of the air-permeable plate 32 is recessed downward to form a second recessed portion 320, and the second recessed portion 320 is located in the concave cavity of the first recessed portion 330. The outer diameter of the second recessed portion 320 is smaller than the inner diameter of the first recessed portion 330, so that the outer surface of the second recessed portion 320 and the inner surface of the first recessed portion 330 together enclose the liquid receiving cavity 30. The first opening 331 is provided on the bottom wall of the first recessed portion 330, and the second opening 321 is provided on the peripheral wall of the second recessed portion 320. The above structure ensures the sealing of the connection between the liquid receiving plate 33 and the air-permeable plate 32 on the one hand, and forms a liquid receiving cavity 30 structure that is convenient for accumulating water vapor without affecting the discharge of gas on the other hand.

[0022] In order to ensure a good seal at the connection, the edge of the liquid receiving plate 33 is placed on the upper surface of the mounting plate 2, and first mounting holes 332 and 333 are correspondingly opened on the edge of the liquid receiving plate 33 and the mounting plate 2, and screws are passed through the first mounting holes to fix the edge of the liquid receiving plate 33 on the mounting plate 2. The edge of the air-permeable plate 32 is placed on the upper surface of the liquid receiving plate 33, and second mounting holes 322 and 333 are correspondingly opened on the edge of the air-permeable plate 32 and the edge of the liquid receiving plate 33, and screws are passed through the second mounting holes to fix the edge of the air-permeable plate 32 on the edge of the liquid receiving plate 33. The upper end of the air-permeable pipe 31 has a top plate 312, and a third opening 313 is opened on the top plate 312, and the edge of the third opening 313 has a guide ring 314 that can extend into the first opening 331. The edge of the opening 21 of the mounting plate 2 has a peripheral edge 211 extending downward and surrounding the first lower recess 330. The top wall of the inner liner 1 is formed with a protrusion 13 that protrudes upward and extends into the lower port 311 of the ventilation pipe 31. The ventilation port 11 is three arc-shaped holes that are spaced apart on the protrusion 13. The lower edge of the ventilation pipe 31 has an assembly ring 315 that can be placed on the upper surface of the inner liner 1 and arranged around the protrusion 13.

[0023] A hot air baffle 14 is provided on the rear side of the inner tank 1 of the present embodiment, an air inlet 141 is provided in the middle of the hot air baffle 14, an air outlet 142 is provided at the edge of the hot air baffle 14, and a side edge of the air outlet 142 has a backward-bent air guide plate 143. This structure is conducive to enhancing the air outlet efficiency of the oven air outlet 142, thereby improving the internal circulation of the oven and ensuring the uniformity of the oven temperature field.

[0024] In this embodiment, the vent 11 on the oven inner tank 1 is arranged at the front part of the top wall of the inner tank 1 and close to the corner of the front opening 12 of the inner tank 1, so as to be as far away from the heating structure and the air inlet and outlet structure on the rear side of the oven as possible. Under the premise of ensuring the balance of pressure and humidity in the oven inner tank 1, the influence of the vent 11 on the internal circulation of the oven is minimized, the internal circulation of hot air in the oven inner tank is improved, and the baking effect is improved.

Claims

1. An oven structure, comprising an inner container (1) and a mounting plate (2), wherein the mounting plate (2) is arranged above the inner container (1) and a gap (10) is formed between the mounting plate (2) and the upper surface of the inner container (1), and a vent (11) is provided at the top of the inner container (1) and is connected to the top space of the mounting plate (2), wherein: The vent (11) is provided at the front part of the top wall of the inner container (1) and is arranged near the corner of the front opening (12) of the inner container (1); the mounting plate (2) is provided with an opening (21) corresponding to the vent (11); the opening (21) is connected to the vent (11) via a vent pipe assembly (3); The ventilation pipe assembly (3) comprises a ventilation pipe (31), a ventilation plate (32) and a liquid receiving plate (33); the lower end (311) of the ventilation pipe (31) is connected to the ventilation port (11); the upper end of the ventilation pipe (31) is located below the mounting plate (2); the ventilation plate (32) and the liquid receiving plate (33) are arranged on the opening (21) of the mounting plate (2) in an overlapping manner; a liquid receiving cavity (30) is formed between the ventilation plate (32) and the liquid receiving plate (33); the liquid receiving plate (33) is provided with a first opening (331) connected to the upper end of the ventilation pipe (31); and the ventilation plate (32) is provided with a second opening (321) for gas to pass through; The middle part of the liquid receiving plate (33) is recessed downward to form a first recessed portion (330), and the first recessed portion (330) is arranged through the opening (21); the middle part of the air-permeable plate (32) is recessed downward to form a second recessed portion (320), and the second recessed portion (320) is located in the concave cavity of the first recessed portion (330), and the outer diameter of the second recessed portion (320) is smaller than the inner diameter of the first recessed portion (330), so that the outer surface of the second recessed portion (320) and the inner surface of the first recessed portion (330) together enclose the liquid receiving cavity (30); The edge of the liquid receiving plate (33) is placed on the upper surface of the mounting plate (2), and the edge of the air permeable plate (32) is placed on the upper surface of the liquid receiving plate (33); The first opening (331) is opened on the bottom wall of the first lower recess (330), and the second opening (321) is opened on the peripheral wall of the second lower recess (320).

2. The oven structure according to claim 1, characterized in that: The upper end of the ventilation pipe (31) is provided with a top plate (312), a third opening (313) is opened on the top plate (312), and the edge of the third opening (313) is provided with a guide ring (314) that can extend into the first opening (331).

3. The oven structure according to claim 1, characterized in that: The edge of the opening (21) of the mounting plate (2) has a surrounding edge (211) extending downward and surrounding the first recessed portion (330).

4. The oven structure according to claim 1, characterized in that: A protrusion (13) is formed on the top wall of the inner container (1) and protrudes upward and extends into the lower port (311) of the ventilation pipe (31). There are at least two ventilation openings (11) arranged at intervals on the protrusion (13).

5. The oven structure according to claim 4, characterized in that: The lower end edge of the ventilation pipe (31) has an assembly ring (315) that can be mounted on the upper surface of the inner container (1) and arranged around the protruding portion (13).

6. The oven structure according to any one of claims 1 to 5, characterized in that: A hot air baffle (14) is arranged on the rear side of the inner liner (1), an air inlet (141) is provided in the middle of the hot air baffle (14), an air outlet (142) is provided at the edge of the hot air baffle (14), and a side edge of the air outlet (142) has an air guide plate (143) bent backwards.

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