Air guide device for hot air baking

Abstract

The utility model discloses a hot air baking air guide device, belongs to cooking electric appliances, and aims to solve the problem that food cannot be uniformly heated by an existing air fryer in which hot air blows from back to front, the hot air baking air guide device is provided with at least two parallel strip-shaped flow guide plates, and the length directions of the flow guide plates extend front and back. The flow guide plate extends up and down in the width direction, and two sides of the flow guide plate form flow guide air channels. In addition, the hot air baking air guide device further comprises a flow guide face which is located at the front end of the top of the cooking cavity and guides air flow to flow downwards. Hot air is guided to blow to food far away from the hot air device in the front of the pot. Therefore, a part of hot air from the hot air device is guided to insufficiently heated food by the hot air baking air guide device, and the food is uniformly heated.

Description

Technical Field

[0001] The utility model belongs to cooking appliances, and particularly relates to a hot air baking air guiding device. Background Art

[0002] For existing air fryers that blow air from the rear to the front, a hot air device is configured at the rear side of the cooking cavity. However, since the hot air blows from the rear to the front, the distances between the food and the hot air device are different, and the hot air cannot heat the food evenly as when blowing air from the top to the bottom. As a result, the food is unevenly cooked and the cooking effect is poor. Summary of the Utility Model

[0003] The technical problem to be solved and the technical task proposed by the utility model are to overcome the defect that the existing air fryer with hot air blowing from the rear to the front cannot heat the food evenly, and to provide a hot air baking air guiding device that can make the hot air heat the food evenly.

[0004] To achieve the above object, the hot air baking air guiding device of the utility model includes: at least two juxtaposed air guiding plates. The air guiding plates are strip-shaped, the length direction of the air guiding plates extends forward and backward, the width direction of the air guiding plates extends up and down, and both sides of the air guiding plates form an air guiding channel. Accordingly, the hot air is guided to the food with insufficient heat by the air guiding channel to heat the food evenly.

[0005] Preferably, at least one air guiding plate is bent and causes at least one air guiding channel to be bent. The bent air guiding channel can generate a swirling flow while guiding the hot air to flow into the pot, that is, the hot air from the hot air baking air guiding device flows downward and also rotates. This can flow through all areas inside the pot rather than local areas under the guidance of the pot wall, and can evenly apply heat to the food inside the pot.

[0006] Preferably, the bent air guiding plate includes a straight section and a bent section that are connected and smoothly transition. The straight section extends forward from the bent section, and the rear end of the bent section deviates to one side, causing the rear port of the air guiding channel to also deviate to one side. The smooth transition between the straight section and the bent section can reduce the noise when the hot air flows. The rear end of the bent section deviating to one side and causing the rear port of the air guiding channel to also deviate to one side can make the air guiding channel conform to the airflow from the shunt channel, that is, the rear port of the air guiding channel faces the direction of the airflow, avoiding the air guiding plate blocking the airflow of the shunt channel alone, achieving a better air guiding effect and reducing the noise of the airflow.

[0007] Preferably, the widths of the juxtaposed air guiding plates gradually increase from one side of the cooking cavity to the other side. Since the hot air device has a fan that generates airflow, the fan not only generates airflow but also interferes with the airflow, especially the hot air shunted to the shunt channel. The rotation of the fan will cause uneven air pressure distribution at the top of the cooking cavity. Therefore, by configuring the widths of the air guiding plates, the uneven air pressure distribution is balanced, and finally the hot air is evenly blown onto the food.

[0008] Preferably, the hot air baking air guiding device includes a guiding surface, which is located at the front end of the top of the cooking cavity and guides the air flow to flow downward, guiding the hot air to the food in the front of the pot that is far from the hot air device.

[0009] Preferably, the front end of the guiding plate intersects with the guiding surface, forcing the air guiding channel to change direction downward, avoiding the lateral flow of the air flow at the front end of the guiding plate, resulting in heat loss and noise.

[0010] Preferably, the guiding plate and the guiding surface are separately configured as two components, and different functions can be realized by different components as needed.

[0011] Preferably, the guiding plate and the guiding surface are jointly configured on the same component, enabling the guiding plate and the guiding surface to maintain a good matching relationship.

[0012] In the present utility model, at least two juxtaposed strip-shaped guiding plates are configured. The length direction of the guiding plate extends back and forth, and the width direction of the guiding plate extends up and down. The two sides of the guiding plate form an air guiding channel. Accordingly, the hot air is guided to the food that is insufficiently heated by the air guiding channel, and the food is heated evenly. Brief Description of the Drawings

[0013] Figure 1 is a schematic diagram of the hot air baking air guiding device of the present utility model;

[0014] Figure 2 is Figure 1 the upward orthographic projection schematic diagram of the shown hot air baking air guiding device;

[0015] Figure 3 is Figure 2 the sectional view taken along the line A-A of ;

[0016] Figure 4 is Figure 2 the sectional view taken along the line B-B of ;

[0017] Figure 5 is a sectional schematic diagram of an air fryer applying the hot air baking air guiding device of the present utility model;

[0018] Figure 6 is Figure 5 the structural exploded schematic diagram of a frying pan unit;

[0019] Figure 7 is Figure 6 the schematic diagram of another perspective of ;

[0020] Description of the Reference Numerals in the Drawings:

[0021] 10 First frying pan unit;

[0022] 20 Second frying pan unit;

[0023] 30 housing;

[0024] 100 cooking cavity, 101 front open end, 102 top wall, 103 bottom wall, 104 rear wall, 105 left side wall, 106 right side wall, 107 air vent, 108 recess;

[0025] 200 pot, 201 ventilation hole;

[0026] 300 hot air device, 301 electric heating tube, 302 first fan blade, 303 exhaust duct;

[0027] 400 shunt channel;

[0028] 500 hot air baking air guiding device, 501 deflector, 502 air guiding duct, 503 air guiding surface, 504 top plate, 505 air guiding member, 506 fixing plate, 507 straight section, 508 bent section. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0030] The terms "comprising" and "having" and any variations thereof in the description and claims of the present utility model are intended to cover non-exclusive inclusion. For example, a method or product comprising a series of technical features does not necessarily have to be limited to those clearly listed technical features, but may also include other technical features that can be included in the method or product and are not clearly listed.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model. Among them, the directions of "upper" and "lower", "left" and "right", "front" and "rear" are opposite.

[0032] In the description of the present utility model, it should be understood that the technical features defined by terms such as "first", "second", etc. with a sequential concept are only for clearly describing the defined technical features, so that the defined technical features can be clearly distinguished from other technical features, rather than being named like this in actual implementation. Therefore, it should not be construed as a limitation to the present utility model.

[0033] The present utility model will be introduced in detail below with reference to the accompanying drawings.

[0034] Figure 5 An air fryer applying a hot air baking air guiding device is shown. The air fryer includes two stacked fryer units. The upper one is called the first fryer unit 10, and the lower one is called the second fryer unit 20. The two fryer units have the same structure. They are placed in the same housing 30 and controlled by the same circuit to be able to work independently or simultaneously. In other embodiments, the air fryer may include only one fryer unit or be formed by stacking more fryer units. When stacking, the two fryer units are preferably fixed together by fasteners.

[0035] As Figure 5 shown, both the first fryer unit 10 and the second fryer unit 20 include a cooking cavity 100, a pot 200, a hot air device 300, a diversion channel 400, and a hot air baking air guiding device 500.

[0036] As Figure 6-7 shown, the cooking cavity 100 is bounded by a top wall 102, a bottom wall 103, a rear wall 104, a left side wall 105, and a right side wall 106. There is a front opening 101 at the front of the cooking cavity. An air outlet 107 is provided on the rear wall of the cooking cavity. The top wall, bottom wall, rear wall, and both side walls form an inner container. The stacking of the first fryer unit and the second fryer unit is achieved through the stacking and fixing of the inner containers. In other embodiments, the top wall of the lower second fryer unit and the bottom wall of the upper first fryer unit can be combined into one.

[0037] The pot 200 has an inner cavity surrounded by a bottom and a peripheral wall, and there is an upper opening at the upper part of the inner cavity. The pot can be placed in the cooking cavity through the front opening of the cooking cavity or taken out from the cooking cavity. A number of ventilation holes 201 are distributed on the rear wall of the pot.

[0038] As Figure 5-7As shown in the figure, the hot air device 300 is located at the rear side of the cooking cavity and is configured to blow hot air forward. In the illustrated structure, the hot air device 300 includes a heating element 301, a first fan blade 302 and a second fan blade that are coaxially installed and driven by the same motor. The first fan blade and the second fan blade are separated by a partition. The first fan blade is located in front of the second fan blade and is given the main function of blowing air forward, while the second fan blade is given the main function of heat dissipation. The first fan blade and the second fan blade are located inside the housing to concentrate the air flow direction. A discharge duct 303 is connected to the housing, and the discharge duct extends to the outside of the housing for discharging air outward. The heating element 301 is spiral and fixed in front of the first fan blade. The air outlet 107 on the rear wall of the cooking cavity, the ventilation hole 201 on the rear wall of the pot, the heating element 301, and the first fan blade 302 are arranged in sequence from front to back and correspond to each other. Therefore, when the first fan blade rotates, it blows air forward, and the air flow is heated by the heating element to become hot air and flows forward and can pass through the ventilation hole on the rear wall of the pot and enter the pot.

[0039] As Figure 5 shown in the figure, the diversion channel 400 is located at the rear side of the pot and communicates the hot air device 300 and the hot air baking air guiding device 500 at the top of the cooking cavity 100. In the illustrated structure, there are spaces between the rear wall of the cooking cavity, the rear wall of the pot, and the heating element. Therefore, the diversion channel is distributed on both the front and rear sides of the rear wall of the cooking cavity. In other embodiments, when the space disappears or is blocked, the diversion channel can be distributed only on the front side or the rear side of the rear wall of the cooking cavity.

[0040] As Figure 5 shown in the figure, the hot air baking air guiding device 500 is located at the top of the cooking cavity 100 for guiding hot air into the inner cavity of the pot. In the illustrated structure, the hot air baking air guiding device 500 is disposed on the top wall 102. In Figure 6-7 it, the hot air baking air guiding device is composed of a top plate 504 and a diversion member 505. The front end of the top plate 504 is bent downward to form a diversion surface 503. The diversion member 505 is fixed to the lower surface of the top plate 504 through its fixing plate 506. Three diversion plates 501 are distributed on the lower side of the fixing plate 506 of the diversion member. In Figure 1-4 it, the hot air baking air guiding device 500 is only embodied as a diversion member 505, and the front end of the fixing plate 506 of the diversion member is bent downward to form a diversion surface 503. Three diversion plates 501 are distributed on the lower side of the fixing plate 506 of the diversion member. Figure 6-7 and Figure 1-4 the hot air baking air guiding device 500 in it constitutes a part of the top wall 102 of the cooking cavity.

[0041] In other embodiments, the diversion plate 501 can be blanked from the fixing plate 506 or can be a single-piece diversion plate assembled to the fixing plate. And, according to the diversion requirements, the diversion plate can be one, two, or four, five.

[0042] According to the above structure, the hot air baking air guiding device 500 includes both a deflector 501 and a guiding surface 503. The front end of the deflector 501 intersects with the guiding surface 503, forcing the air guiding duct to change direction downward. The deflector and the guiding surface cooperate to guide the air flow into the pot. The two sides of the deflector form an air guiding duct 502, and the air flow flowing through the air guiding duct 502 to the guiding surface 503 is guided to flow downward. Due to the existence of the guiding surface, a concave portion 108 that is sunken upward is formed at the rear side of the guiding surface. The concave portion 108 constitutes the top of the cooking cavity, that is, the hot air baking air guiding device 500 is disposed in the concave portion 108.

[0043] In the illustrated structure, the deflector 501 is in a long strip shape. The length direction of the deflector 501 extends forward and backward, and the width direction of the deflector extends up and down. Moreover, the deflector 501 is substantially perpendicular to the fixing plate 506. In other embodiments, the deflector can be inclined to the left or right as needed.

[0044] Figure 1-4 The three deflectors 501 shown are bent and cause at least one air guiding duct 502 to bend. The bent air guiding duct can guide the hot air to flow into the pot while generating a swirling flow, that is, the hot air from the hot air baking air guiding device flows downward while also making a rotational movement. This can flow through all areas of the pot rather than local areas under the guidance of the pot wall, and can evenly apply heat to the food in the pot.

[0045] As Figure 2 shown, the bent deflector 501 includes a straight section 507 and a bent section 508 that are connected and smoothly transition. The straight section 507 extends forward from the bent section 508, and the rear end of the bent section biases to the right. The bias of the rear end of the bent section is related to the rotation direction of the first fan blade, which is used to guide the air flow, reduce wind resistance and noise. The smooth transition between the straight section and the bent section can reduce the noise when the hot air flows. The bias of the rear end of the bent section to one side can make the air guiding channel conform to the air flow from the shunt channel, that is, the rear port of the air guiding channel faces the direction of the air flow, avoiding the deflector blocking the air flow of the shunt channel, achieving a better air guiding effect and reducing the noise of the air flow.

[0046] Since the hot air device has a fan that generates air flow, the fan not only generates air flow but also interferes with the air flow, especially the hot air shunted to the shunt channel. The rotation of the fan will cause uneven air pressure distribution at the top of the cooking cavity. Therefore, the three deflectors are arranged side by side from the left side to the right side of the cooking cavity, and the width of each deflector is as Figure 1 shown, gradually increasing from the right side to the left side of the cooking cavity. By configuring the width of each deflector, the uneven air pressure distribution is balanced, and finally the hot air is evenly blown onto the food.

[0047] During operation, place the food in the pot 200 and place the pot in the cooking cavity 100. Start the air fryer. The hot air generated by the hot air device blows forward. A part of the hot air passes through the ventilation holes 201 and enters the inner cavity of the pot, heating the food closer to the hot air device at the rear side of the pot. Another part of the hot air is blocked and redirected, flowing along the diversion channel 400 to the top of the cooking cavity 100, and further flowing downward under the guidance of the hot air baking air guiding device 500 and blowing into the pot, heating the food farther from the hot air device at the front side of the pot. Overall, the hot air from the hot air device can evenly blow on the food to heat the food, ensuring that the food is evenly cooked and raw.

Claims

1. Hot air baking air guiding device, characterized in that Comprising: At least two juxtaposed deflector plates (501), the deflector plates (501) being strip-shaped, the length direction of the deflector plates extending front and back, the width direction of the deflector plates extending up and down, and both sides of the deflector plates constituting a deflector air duct (502); The widths of the juxtaposed deflector plates (501) gradually increase from one side of the cooking cavity to the other side; The hot air baking air guiding device (500) includes a guiding surface (503), the guiding surface (503) being located at the front end of the top of the cooking cavity and guiding the air flow to flow downward; The front end of the deflector plate (501) intersects with the guiding surface (503) to force the deflector air duct to change direction downward.

2. The hot air baking air guiding device according to claim 1, wherein: At least one deflector plate (501) is bent and causes at least one deflector air duct (502) to be bent.

3. The hot air baking air guiding device according to claim 2, wherein: The bent deflector plate includes a straight section (507) and a bent section (508) that are connected and smoothly transition, the straight section extending forward from the bent section, and the rear end of the bent section being biased to one side so that the rear port of the deflector air duct is also biased to one side.

4. The hot air baking air guiding device according to claim 1, characterized in that: The deflector plate (501) and the guiding surface (503) are separately disposed on two components.

5. The hot air baking air guiding device according to claim 1, characterized in that: The deflector plate (501) and the guiding surface (503) are jointly disposed on the same component.

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