Exhaust system and oven comprising same

Abstract

The exhaust system comprises a wind scooper assembly and an exhaust window, the wind scooper assembly is provided with a wind channel cavity, the exhaust window is connected with the wind scooper assembly to form a first exhaust channel, the exhaust window is provided with an air outlet of the first exhaust channel, and the air outlet of the first exhaust channel is communicated with the wind scooper assembly. The air outlet and the horizontal line are obliquely arranged, so that circulating hot air flow used for air explosion in the oven cannot be horizontally and outwards directly blown to the rear side of the oven, and a large amount of hot air is prevented from being horizontally and directly blown to the test cabinet when the oven is subjected to a safety test; in addition, the space needed by heat dissipation of the oven can be reduced, it is not needed to arrange a rear blocking foot to ensure that an enough safe distance exists between the rear wall of the oven and the test cabinet so as to guarantee heat dissipation of the oven, and the occupied position of the oven in the placing process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ovens, in particular to an exhaust system and an oven containing the same. Background Art

[0002] Air frying is a method of baking food that is increasingly popular because it uses minimal or no cooking oil, reducing the amount of fat in food. It is also healthy, convenient, and easy to clean. Air frying uses electrically heated air to swirl around in a sealed container, rapidly frying the food within, giving it a texture and flavor similar to deep-fried food.

[0003] In order to achieve the air frying function, the current oven will be equipped with a shaded pole fan on the top of the oven to realize the circulating air system in the cavity, so that the food in the cavity can be dehydrated under the action of large air volume, thus achieving the air frying function.

[0004] However, this circulating air system carries a significant amount of heat, which needs to be exhausted outside the product through an air duct. Existing duct systems feature horizontally arranged exhaust louvers, which blow hot air directly onto the back of the test cabinet. This heat can cause the test cabinet to heat up, posing safety risks. This structure requires rear feet to separate the test cabinet from the exhaust louvers, which takes up a lot of space and is very inconvenient for product placement. Utility Model Content

[0005] The purpose of the present utility model is to provide an exhaust system and an oven containing the same, so as to solve the technical problem in the prior art that the air outlet on the exhaust window of the oven is arranged horizontally, resulting in a large safety distance being required between the test cabinet and the exhaust window, which in turn causes the oven to occupy a large space.

[0006] The utility model provides an exhaust system, comprising an air duct assembly and an exhaust window, wherein the air duct assembly has an air duct cavity, the exhaust window is connected to the air duct assembly to form a first exhaust channel, the exhaust window has an air outlet of the first exhaust channel, and the air outlet is arranged at an angle to the horizontal line.

[0007] As described above, the exhaust system further comprises an air duct sleeve, and two ends of the air duct sleeve are respectively connected to the air guide cover assembly and the exhaust window to form the first exhaust channel.

[0008] In the exhaust system as described above, the air guide cover assembly is provided with an exhaust hole, one end of the air duct sleeve is arranged on the peripheral side of the exhaust hole, and the other end of the air duct sleeve is plugged into the exhaust window.

[0009] In the exhaust system as described above, the exhaust window includes an air inlet end and an air outlet end, the air inlet end is provided with an air inlet, the air outlet is provided at the air outlet end, and the air duct sleeve is plugged into the air inlet end.

[0010] In the exhaust system as described above, the air inlet and the air outlet form an angle A, and the range of the angle A is 90°-150°.

[0011] In the exhaust system as described above, a rear side wall of the exhaust window is provided with a limiting column extending backward.

[0012] The utility model also provides an oven, comprising the exhaust system as described above.

[0013] As described above, the oven includes a cavity body and a cavity top shell. The cavity top shell cover is provided on the cavity body and forms a cooking chamber. The air guide cover assembly is provided on the cavity top shell.

[0014] In the oven as described above, the air guide cover assembly includes an air guide cover shell, a motor, fan guide blades and heat dissipation fan blades. The air guide cover shell is arranged on the top wall of the cavity top shell and forms the air duct cavity. The motor is arranged on the top wall of the air guide cover shell. The output shaft of the motor passes through the air guide cover and the cavity top shell in sequence. The fan guide blades and the heat dissipation fan blades are both arranged on the output shaft of the motor, wherein the fan guide blades are arranged in the cooking chamber, and the heat dissipation fan blades are arranged in the air duct cavity, and the blades of the fan guide blades and the heat dissipation fan blades are in opposite directions.

[0015] As described above, the oven further includes an outer shell, which covers the outside of the cavity body and the cavity top shell and forms a gap, the exhaust system is arranged in the gap, and the exhaust window passes through the rear wall of the outer shell.

[0016] The implementation of the present invention will have the following beneficial effects:

[0017] In the present invention, an air guide cover assembly and an exhaust window are provided, the air guide cover assembly has an air duct cavity, the exhaust window is connected to the exhaust window and forms a first exhaust channel, the exhaust window has an air outlet of the first exhaust channel, and the air outlet is arranged at an angle to the horizontal line, so that the circulating hot air flow used for air frying in the oven will not blow horizontally outward directly toward the rear side of the oven, thereby preventing a large amount of hot air from blowing horizontally directly toward the test cabinet when the oven is undergoing safety testing; it can also reduce the space required for heat dissipation of the oven, and there is no need to set rear stop feet to ensure that there is a sufficient safety distance between the rear wall of the oven and the test cabinet to ensure heat dissipation of the oven, which is conducive to reducing the space occupied by the oven when it is placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 is a schematic structural diagram of an oven according to an exemplary embodiment;

[0020] Figure 2 is a cross-sectional view of an oven according to an exemplary embodiment;

[0021] Figure 3 is an exploded view of an oven according to an exemplary embodiment;

[0022] Figure 4 is a cross-sectional view of an exhaust window according to an exemplary embodiment.

[0023] Among them: 1. Air guide cover assembly; 11. Air guide cover shell; 111. Air duct cavity; 12. Motor; 13. Fan guide blades; 14. Heat dissipation fan blades; 2. Exhaust window; 21. Air inlet end; 211. Air inlet; 22. Air outlet end; 23. Limiting column; 3. First exhaust channel; 31. Air outlet; 4. Air duct cover; 5. Cavity body; 6. Cavity top shell; 7. Cooking chamber; 8. Outer shell. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] 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" and the like to 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 device or element referred to 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.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0027] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] See also Figures 1-4 The present invention provides an exhaust system, including an air scoop assembly 1 and an exhaust window 2. The air scoop assembly 1 has an air duct cavity 111. The exhaust window 2 is connected to the air scoop assembly 1 and forms a first exhaust channel 3. The exhaust window 2 has an air outlet 31 for the first exhaust channel 3, and the air outlet 31 is arranged at an angle relative to the horizontal. The air scoop assembly 1 is used for air frying, and the first exhaust channel 3 is used to exhaust the oven. It should be understood that the air outlet 31 arranged at an angle relative to the horizontal includes vertical arrangement, upward arrangement, and downward arrangement. Because the air outlet 31 of the first exhaust channel 3 is arranged at an angle relative to the horizontal, the circulating hot air flow in the oven used for air frying will not blow horizontally outward directly toward the rear of the oven, preventing a large amount of hot air from blowing horizontally directly into the test cabinet during safety testing. It also reduces the space required for the oven to dissipate heat, eliminating the need for rear feet to ensure a sufficient safe distance between the rear wall of the oven and the test cabinet to ensure heat dissipation, which helps reduce the space occupied by the oven when placed.

[0030] Furthermore, the exhaust system further includes an air duct sleeve 4, the ends of which are respectively connected to the air duct assembly 1 and the exhaust window 2 to form the first exhaust channel 3. The air duct sleeve 4 is fixedly connected to the air duct assembly 1 by screws, thereby achieving a fixed connection between the air duct sleeve 4 and the air duct assembly 1.

[0031] Furthermore, the air duct assembly 1 is provided with an exhaust hole, one end of the air duct sleeve 4 is disposed on the peripheral side of the exhaust hole, and the other end of the air duct sleeve 4 is plugged into the exhaust window 2. Both ends of the air duct sleeve 4 are open structures, one end of the air duct sleeve 4 extends into the exhaust hole, and the outer bottom wall of the air duct sleeve 4 is provided with a downwardly extending baffle, which can abut against the inner wall of the air duct cavity 111. The outer wall of the air duct sleeve 4 is also provided with an outwardly extending lug, which is fixed to the outer wall of the air duct assembly 1 by screws. The other end of the air duct sleeve 4 is sleeved on the exhaust window 2, and the exhaust window 2 is also provided with a guide structure that can guide the air duct sleeve 4 to be plugged into the exhaust window 2. The air duct sleeve 4 and the exhaust window 2 are connected with an interference fit.

[0032] Furthermore, the exhaust window 2 includes an air inlet end 21 and an air outlet end 22. The air inlet end 21 is provided with an air inlet 211, the air outlet 31 is provided at the air outlet end 22, and the air duct cover 4 is plugged into the air inlet end 21. In a specific embodiment, a plurality of upwardly inclined air guide plates are provided inside the air outlet end 22, so that the air outlet 31 faces upward.

[0033] Furthermore, the air inlet 211 and the air outlet 31 form an angle A, and the angle A ranges from 90° to 150°. Specifically, the angle A is 90°, 100°, 110°, 120°, 130°, 140°, or 150°, so that the air outlet 31 can face upward, and the circulating hot air flow in the oven used for air frying can be discharged upward, avoiding direct blowing toward the rear side of the oven. This prevents a large amount of hot air from directly blowing toward the test cabinet during safety testing, causing the test cabinet temperature to be relatively high and posing safety risks, thereby improving product safety.

[0034] Furthermore, the rear sidewall of the exhaust window 2 is provided with a rearward-extending retaining post 23. When the oven undergoes safety testing, the retaining post 23 can abut against the test cabinet, preventing the air outlet 31 from being close to the test cabinet, thus ensuring heat dissipation from the oven. This eliminates the need for rear stoppers at the rear of the oven, reducing the number of oven components, improving installation efficiency, and lowering costs. The retaining post 23 preferably protrudes from the air outlet 31 and forms an integral structure with the exhaust window 2.

[0035] In some embodiments, two limiting posts 23 are provided on the rear side wall of the exhaust window 2, and the two limiting posts 23 are respectively provided on both sides of the air outlet 31, which neither affects the exhaust of the oven nor enables the limiting posts 23 to abut against the test cabinet, so that the oven can be balanced and avoid displacement.

[0036] The present invention also provides an oven, including the exhaust system described above. A first exhaust duct 3 is provided for exhausting the circulating hot air flow used for air frying from the oven. Since the air outlet 31 of the first exhaust duct 3 is disposed upward, the circulating hot air flow used for air frying in the oven can be discharged upward, avoiding being blown directly toward the rear of the oven. This prevents a large amount of hot air from directly blowing into the test cabinet during safety testing, which could result in a high temperature in the test cabinet and pose a safety risk, thereby improving product safety.

[0037] Furthermore, the oven includes a cavity body 5 and a cavity top shell 6. The cavity top shell 6 is covered on the cavity body 5 and forms a cooking chamber 7. The air guide cover assembly 1 is disposed on the cavity top shell 6. The cavity top shell 6 is provided with a first through hole for heat dissipation, so that heat in the cooking chamber 7 can enter the first exhaust channel 3 through the first through hole and then be discharged outside the oven.

[0038] Furthermore, the air guide cover assembly 1 includes an air guide cover shell 11, a motor 12, a guide fan blade 13, and a heat dissipation fan blade 14. The air guide cover shell 11 is arranged on the top wall of the cavity top shell 6 and forms the air duct cavity 111. The motor 12 is arranged on the top wall of the air guide cover shell 11. The output shaft of the motor 12 passes through the air guide cover and the cavity top shell 6 in sequence. The guide fan blade 13 and the heat dissipation fan blade 14 are both arranged on the output shaft of the motor 12. The guide fan blade 13 is arranged in the cooking chamber 7, and the heat dissipation fan blade 14 is arranged in the air duct cavity 111. The blades of the guide fan blade 13 are arranged in opposite directions to the heat dissipation fan blade 14. The blades of the guide fan blade 13 are arranged downward to blow heat dissipation air downward to achieve the function of air frying. The blades of the heat dissipation fan blade 14 are arranged upward to assist in heat dissipation. In some embodiments, the motor 12 is a shaded pole motor 12 , which is covered with a layer of shaded poles to better protect the internal movement of the motor 12 and prevent external dust, water, etc. from entering, thereby increasing the service life of the motor 12 .

[0039] Specifically, a second through hole is provided on the air guide cover 11, and a third through hole is provided on the cavity top shell 6. The motor 12 is fixed to the top wall of the air guide cover 11 by screws. The output shaft of the motor 12 passes through the second through hole and the third through hole in sequence, and there is a first gap between the output shaft of the motor 12 and the hole wall of the second through hole, and there is a second gap between the output shaft of the motor 12 and the hole wall of the third through hole. The first gap can allow external air to enter the air duct cavity 111, and then enter the cooking chamber 7 through the second gap to realize air circulation.

[0040] Specifically, a heating tube is provided on the top wall of the cooking chamber 7. Fan blades 13 are used to promote airflow within the cooking chamber 7, removing heat from the upper heating tube and blowing it downward, filling the entire cooking chamber 7 and performing the air frying function. Heat dissipation fan blades 14 are provided within the air duct cavity 111 to dissipate heat and accelerate the exhaust of hot air from the first exhaust channel 3.

[0041] The oven further includes an outer shell 8, which is disposed outside the cavity body 5 and cavity top shell 6 to form a gap. The exhaust system is disposed in the gap, and the exhaust window 2 extends through the rear wall of the outer shell 8. The outer shell 8 includes a U-shaped shell and a rear shell, which is fixedly attached to the rear side of the U-shaped shell. The rear shell is provided with a fourth through hole, and the exhaust window 2 extends through a second through hole. The air inlet end 21 of the exhaust window 2 is located in the gap between the rear shell and the cavity body 5, and the air outlet end 22 of the exhaust window 2 extends outside the oven.

[0042] Specifically, an outwardly extending abutting portion is provided on the outer side wall of the exhaust window 2 , and the abutting portion is used to abut against the rear side wall of the rear shell, thereby limiting the position of the exhaust window 2 .

[0043] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model.

Claims

1. An exhaust system, characterized in that: The invention comprises an air guide cover assembly (1) and an exhaust window (2), wherein the air guide cover assembly (1) has an air duct cavity (111), the exhaust window (2) is connected to the air guide cover assembly (1) to form a first exhaust channel (3), and the exhaust window (2) has an air outlet (31) of the first exhaust channel (3), and the air outlet (31) is arranged at an angle to the horizontal line.

2. The exhaust system according to claim 1, characterized in that The exhaust system further comprises an air duct sleeve (4), the two ends of which are respectively connected to the air guide cover assembly (1) and the exhaust window (2) to form the first exhaust channel (3).

3. The exhaust system according to claim 2, characterized in that: The air guide cover assembly (1) is provided with an exhaust hole, one end of the air duct sleeve (4) is arranged on the peripheral side of the exhaust hole, and the other end of the air duct sleeve (4) is plugged into the exhaust window (2).

4. The exhaust system according to claim 3, characterized in that The exhaust window (2) comprises an air inlet end (21) and an air outlet end (22); the air inlet end (21) is provided with an air inlet port (211); the air outlet port (31) is arranged at the air outlet end (22); and the air duct sleeve (4) is plugged into the air inlet end (21).

5. The exhaust system according to claim 4, characterized in that The air inlet (211) and the air outlet (31) form an angle A, and the range of the angle A is 90°-150°.

6. The exhaust system according to claim 1, characterized in that A rear side wall of the exhaust window (2) is provided with a limiting column (23) extending backwards.

7. An oven, characterized in that: Comprising the exhaust system according to any one of claims 1-6.

8. The oven according to claim 7, characterized in that: The oven comprises a cavity body (5) and a cavity top shell (6), wherein the cavity top shell (6) is covered on the cavity body (5) and forms a cooking chamber (7), and the air guide cover assembly (1) is arranged on the cavity top shell (6).

9. The oven according to claim 8, characterized in that: The air guide cover assembly (1) comprises an air guide cover shell (11), a motor (12), a fan blade (13) and a heat dissipation fan blade (14); the air guide cover shell (11) is arranged on the top wall of the cavity top shell (6) and forms the air duct cavity (111); the motor (12) is arranged on the top wall of the air guide cover shell (11); the output shaft of the motor (12) passes through the air guide cover and the cavity top shell (6) in sequence; the fan blade (13) and the heat dissipation fan blade (14) are both arranged on the output shaft of the motor (12); wherein the fan blade (13) is arranged in the cooking chamber (7); the heat dissipation fan blade (14) is arranged in the air duct cavity (111); and the blades of the fan blade (13) and the heat dissipation fan blade (14) are oriented in opposite directions.

10. The oven according to claim 8, characterized in that: The oven further comprises an outer shell (8), wherein the outer shell (8) is arranged to cover the outside of the cavity body (5) and the cavity top shell (6) to form a gap, the exhaust system is arranged in the gap, and the exhaust window (2) passes through the rear wall of the outer shell (8).

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