CN214964734U - High-efficiency hot air cooking device - Google Patents

Abstract

The utility model discloses a high-efficiency hot air cooking device, which comprises a pot body and a pot cover covered with the pot body; the interior of the pot body is provided with a hot air component and a reflecting cover used for containing the hot air component; the hot air assembly comprises a heating device, a fan arranged below the heating device and a pressurizing cover arranged above the heating device; a cooking space is formed in the pressure boost cover; a radiation gap is arranged between the pressurizing cover and the heating device; a first wind pressure air channel is formed between the heating device and the inner wall of the reflecting cover, and a second wind pressure air channel is formed between the inner wall of the reflecting cover and the supercharging cover; the wind flow blown out by the fan flows through the heating device and enters the supercharging cover through the first wind pressure wind channel and the second wind pressure wind channel, and the hot wind in the radiation gap is sucked and enters the supercharging cover through the matched wind flow at the first wind pressure wind channel and the second wind pressure wind channel; to realize high-efficiency hot air cooking.

Description

High-efficiency hot air cooking device

[ technical field ] A method for producing a semiconductor device

The utility model relates to a kitchen utensil technical field, concretely relates to hot-blast culinary art device of high efficiency.

[ background of the invention ]

The heating device of the cooking appliance (such as an air fryer) is usually arranged at two positions, namely, the heating device is arranged on the pot cover, so that the cooking appliance can cook in different states by replacing different pot covers. The other is to arrange the heating device at the lower part of the pot body to simplify the structure of the pot cover, reduce the weight of the pot cover and facilitate the taking and placing of users.

For a cooking appliance with a heating device arranged at the lower part of a pot body, the heat flow mode in a cooking cavity of the cooking appliance is generally two.

One way is that heat is blown to the pot cover by a hot air fan of the heating device, and hot air collides with the pot cover to change the flow direction, flows downwards, enters a container containing food, and heats the food. In this heat circulation manner, the flow path of the hot wind before it is blown to the food is long, and the heat loss is severe, so that the heating efficiency is low.

Another way is to open a hole on the container containing food, and heat enters the container through the hole on the container by a hot air fan to heat the food, which has high utilization rate of heat and is widely used. However, due to the holes, hot air can enter the container and also can flow back to the heating device from the container, the hot air in various directions collides, turbulence is easy to occur, and hot air circulation cannot be normally performed.

In addition, the food itself or grease generated from the food during cooking blocks the holes of the container, so that the hot air cannot flow back to the hot air fan through the holes after heating the food, and the hot air is stored in the container, thereby consuming a long time for heating and affecting the taste of the food during cooking.

[ Utility model ] content

The invention aims to overcome the defects in the prior art and design a high-efficiency hot air cooking device.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a high-efficiency hot air cooking device comprises a pot body and a pot cover covered with the pot body; the interior of the pot body is provided with a hot air component and a reflecting cover used for containing the hot air component; the hot air assembly comprises a heating device, a fan arranged below the heating device and a pressurizing cover arranged above the heating device; a cooking space is formed in the pressure boost cover; a radiation gap is arranged between the pressurizing cover and the heating device; a first wind pressure air channel is formed between the heating device and the inner wall of the reflecting cover, and a second wind pressure air channel is formed between the inner wall of the reflecting cover and the supercharging cover; the wind flow blown out by the fan flows through the heating device and enters the supercharging cover through the first wind pressure wind channel and the second wind pressure wind channel, and the hot wind in the radiation gap is sucked and enters the supercharging cover through the matched wind flow at the first wind pressure wind channel and the second wind pressure wind channel; and an oil collecting area is arranged at the bottom of the pressurizing cover.

Furthermore, the supercharging cover is provided with an air inlet hole and an air return hole; wind flows into the cooking space through the wind inlet hole and flows out through the wind return hole to form a circulating wind flow in the cooking space.

Furthermore, the upper part of the reflecting cover is circumferentially and continuously provided with placing steps, and the pressurizing cover is provided with a clamping surface matched with the placing steps; the pressurizing cover is abutted against the placing step through the clamping surface.

Furthermore, the air inlet hole is arranged on the side wall of the pressure increasing cover, and the air inlet hole is positioned at the lower part of the clamping surface.

Further, the height of the radiation gap is 0-10 mm.

Furthermore, the middle part of the radiation gap is provided with a return air cavity, and the height of the return air cavity is larger than the height of the communication position of the radiation gap and the second wind pressure wind channel and/or the first wind pressure wind channel.

Still further, the bottom of the pressure increasing cover is provided with an upward concave groove, and the groove forms the air return cavity.

Furthermore, the hot air assembly also comprises an air guide cover which is arranged inside the pressurizing cover and is communicated up and down; and the side wall of the air guide cover is matched with the supercharging cover to form a third air pressure air channel.

Furthermore, the part of the vertical projection area where the wind scooper is located and the air return hole are overlapped is a closed area.

Furthermore, the pressurizing cover can be placed in the reflecting cover in a picking and placing mode, the pressurizing cover comprises a pressurizing cover body and a holding part which is connected with the pressurizing cover body and extends towards the pressurizing cover body, and a holding gap is formed between the holding part and the pot body.

Since the technical scheme is used, the utility model discloses the beneficial effect who gains does:

1. a pressurizing cover is additionally arranged on the hot air component, and a cooking space is formed in the pressurizing cover; ensuring that all the air flow in the pot body is guided towards the inner direction of the pressurizing cover, and further circularly heating the food materials in the cooking space through the heat carried by the air flow; the hot air in the pot body is prevented from flowing in multiple directions, on one hand, the hot air flows towards the non-cooking space too much, and a large amount of heat is lost; on the other hand, hot air in multiple directions collides and generates turbulence, so that hot air circulation cannot be normally performed, and the hot air cooking efficiency is reduced.

In addition, through additionally arranging the radiation gap, and through the matching of the air flow at the first air pressure air channel and the second air pressure air channel and the air flow at the heating device, the hot air at the radiation gap can generate negative pressure relative to the air flow at the first air pressure air channel and/or the second air pressure air channel, and further the effect of sucking the hot air in the radiation gap into the pressure increasing cover can be generated; on the other hand, the hot air in the radiation gap is timely evacuated and circulated by utilizing the matching of the air flow of the first air pressure air channel and the second air pressure air channel, so that the temperature in the radiation gap can be reduced to a great extent, and the risk that the temperature in the radiation gap is too high and the heating device or the pressurizing cover and other structures are dissolved in the disc can be avoided.

The oil collecting area is arranged at the bottom of the pressure increasing cover, and the cooking space is formed inside the pressure increasing cover, so that grease dripped by cooking food materials in the cooking process can be collected by the oil collecting area arranged at the bottom of the pressure increasing cover, the pressure increasing cover can play a role in collecting grease, multiple purposes are achieved, structural accessories are simplified, and cost is reduced.

2. The pressurizing cover is provided with an air inlet hole and an air return hole; wind flows into the cooking space through the wind inlet hole and flows out through the wind return hole to form a circulating wind flow in the cooking space; the pressurizing cover abuts against the circumferentially continuous placing steps on the upper part of the reflecting cover through the clamping surface, so that the circumferential direction of the installation matching part of the pressurizing cover and the reflecting cover is guaranteed to be blocked, and hot air is further guaranteed to enter the cooking space through the air inlet hole of the pressurizing cover; prevent that hot-blast clearance through the cooperation junction of pressure boost cover and bowl from appearing flowing into other routes, cause hot-blast thermal loss, perhaps appear causing to flow into pot body shell or other positions and cause the shell temperature high, scald the user or melt the risk of shell.

3. The air inlet hole is arranged on the side wall of the pressurizing cover and is arranged at the lower part of the clamping surface; the cooking device has the advantages that the wind flow is enabled to pass through the first wind pressure wind channel and the second wind pressure wind channel and then pass through the wind inlet hole in the side wall of the pressure increasing cover to enter the cooking space, and the sucked hot wind in the radiation gap is enabled to pass through the wind inlet hole in the side wall of the pressure increasing cover to enter the cooking space; on the other hand, the air current passes through the second air pressure duct and the air inlet hole area at the lower part of the clamping surface, so that the hot air is partially gathered, the air speed of the hot air entering the cooking space through the air inlet hole on the side wall of the supercharging cover is increased, and the hot air circulation efficiency of the hot air circulation is increased.

In addition, the air inlet hole is formed in the side wall of the pressurizing cover, and the bottom of the pressurizing cover is provided with a certain accommodating space which can be used for collecting grease drained by cooking food materials in the cooking process, namely an oil collecting area is generated; the problem that the grease falls on the lower part of the heating device or the pot body to cause difficult cleaning and even cause potential safety hazard is prevented.

4. The height of the radiation gap is set to be 0-10mm, and the radiation gap is set to have a certain height so as to achieve a better effect, on one hand, hot air in the radiation gap is sucked to efficiently utilize the part of heat to cook food materials in a cooking space through hot air, and the utilization rate of the hot air and the cooking efficiency of the hot air are increased; on the other hand, the risk of tray melting caused by the fact that hot air in the radiation gap cannot be pumped out is prevented. If the height of the radiation gap is set to be too large, most of the hot air in the first air pressure air duct and/or the hot air in the second air pressure air duct directly flows through the radiation gap, and the hot air in the radiation gap does not generate negative pressure relative to the first air pressure air duct and/or the second air pressure air duct, so that the hot air cannot be sucked by the hot air in the first air pressure air duct and the second air pressure air duct to be used for utilizing food materials in a cooking space, the hot air cannot reach the cooking space, hot air circulation at the bottom of the pot body is formed, and the cooking efficiency of the hot air is reduced; if the high setting in radiation clearance is too little or do not have the radiation clearance, can cause the hot-blast unable outflow in the radiation clearance, and then cause the regional high temperature in radiation clearance, not only can make this regional heat can not by effectual utilization, cause thermal waste, still can cause this regional heat to be unable to disperse, have the risk of dissolving the dish.

5. And a return air cavity is arranged in the middle of the radiation gap, and the height of the return air cavity is larger than that of the communication position of the radiation gap and the second wind pressure wind channel and/or the first wind pressure wind channel. With the arrangement, on one hand, negative pressure can be formed at the radiation gap close to the second wind pressure air channel and/or the first wind pressure air channel, namely, hot wind of the first wind pressure air channel and/or the second wind pressure air channel can suck heated devices in the radiation gap, especially hot wind heated by the upper surface of the heating device, and the cooking efficiency of the hot wind is improved; on the other hand, the middle part sets up the return air chamber, can make the hot-blast part in return air chamber can form the microcirculation through return air hole, radiation clearance to the wind current to pot body lower part heats, thereby makes the wind current that blows off through the fan pass through preheating earlier, flows through heating device and passes through first wind pressure wind channel with the entering of second wind pressure wind channel in the pressure boost cover, reinforcing thermal utilization ratio improves culinary art efficiency.

6. The bottom of the pressurizing cover is provided with an upward concave groove, and the groove forms the air return cavity. The bottom of the pressurizing cover is provided with the upward groove which forms the air return cavity, so that the manufacturing process is simplified, and the bottom of the pressurizing cover is sunken upwards, so that other areas at the bottom of the pressurizing cover are provided with the volume cavity, and the volume cavity can be used for collecting grease leached in the cooking process of food materials, namely the volume cavity becomes an oil collecting area of the pressurizing cover, so that the problem that the grease pollutes a heating device or cannot be collected to cause complex cleaning is solved; and the joints of the upward concave grooves and other areas at the bottom of the pressurizing cover can guide the flow of the grease, so that the grease can be conveniently collected in other areas at the bottom of the pressurizing cover.

7. By arranging the air guide cover, after hot air enters the inside of the supercharging cover through the air inlet of the supercharging cover, a part of the hot air directly flows upwards from the periphery of the cooking space and then flows downwards after contacting with the pot cover, and fully contacts with food materials in the cooking space to form hot air circulation; the other part of the hot air flows upwards from the bottom through a third air pressure air channel formed by matching the side wall of the air guide cover and the supercharging cover, so that the hot air flows upwards from the bottom of the food material; thereby guarantee to get into inside hot-blast ability of pressure boost cover and the edible material in the culinary art space and carry out abundant contact, the exchange of the heat that carries on of maximum efficiency promotes hot-blast culinary art efficiency.

8. The vertical projection area where the wind scooper is located and the part where the air return hole coincides are set to be a closed area, so that grease in the cooking process is prevented from flowing to the lower part of the pot body or the heating device through the air return hole, the pot body is prevented from being polluted, the washing is complex, and even potential safety hazards are caused.

9. The pressurizing cover can be placed in the reflecting cover in a picking and placing mode, the pressurizing cover comprises a pressurizing cover body and a holding part which is connected with the pressurizing cover body and extends towards the outside of the pressurizing cover, and a holding gap is formed between the holding part and the pot body. The setting of portion of gripping, convenience of customers passes through on the one hand the end of gripping is got the pressure boost cover, on the other hand is convenient pressure boost cover and the inside other culinary art subassemblies of pressure boost cover are holistic to be placed, make the pressure boost cover is convenient for wash and puts in order, and guarantees that the placing of pressure boost cover and inside other culinary art subassemblies is more steady, firm. In addition, the existence of the holding gap facilitates the integral taking and placing of the pressurizing cover by a user, and can avoid the heat transfer of the pressurizing cover to the pot body, so that the temperature on the surface of the pot body is raised, and the use by the user is inconvenient.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic view of an overall structure of a high-efficiency hot air cooking device according to an embodiment of the present invention.

Fig. 2 is a schematic view of the overall sectional structure of an embodiment of the high-efficiency hot air cooking device of the present invention.

Fig. 3 is a schematic view of the airflow circulation of the high-efficiency hot air cooking device according to an embodiment of the present invention.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 5 is a schematic view of a reflector structure according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a pressure boost cover according to an embodiment of the present invention.

Fig. 7 is a schematic view of an embodiment of the present invention.

Fig. 8 is a schematic top view of the wind scooper disposed in the pot according to an embodiment of the present invention.

Reference numerals:

a pan cover 100;

a pan body 200;

a hot air assembly 300; a heating device 310; a fan 320; a pressurizing cover 330; a booster cover body 331; a grip portion 332; a grip gap 333; an air inlet hole 334; return air holes 335; a snap surface 336; a recess 337; an oil collection area 338; a radiation gap 340; the height H of the radiating gap;

a cooking space 350;

an air return chamber 360;

a wind scooper 370; a part 371 where the vertical projection area where the wind scooper is located is overlapped with the air return hole;

a reflection cover 400; placing a step 410;

a first wind pressure duct 510; a second wind pressure air duct 520; and a third wind pressure duct 530.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise direct contact between the first and second features through another feature not in direct contact. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The high-efficiency hot air cooking apparatus according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, according to an embodiment of the present invention, a high-efficiency hot air cooking apparatus includes a pot body 200, a pot cover 100 covering the pot body 200; the interior of the pan body 200 is provided with a hot air assembly 300 and a reflecting cover 400 for containing the hot air assembly 300; the hot air assembly 300 comprises a heating device 310, a fan 320 arranged below the heating device 310, and a pressurizing cover 330 arranged above the heating device 310; a cooking space 350 is formed in the pressurizing cover 330; a radiation gap 340 is arranged between the pressurizing hood 330 and the heating device 310; a first wind pressure air channel 510 is formed between the heating device 310 and the inner wall of the reflection housing 400, and a second wind pressure air channel 520 is formed between the inner wall of the reflection housing 400 and the supercharging housing 330; the wind flow blown by the fan 320 flows through the heating device 310 and enters the plenum housing 330 through the first wind pressure wind tunnel 510 and the second wind pressure wind tunnel 520, and the wind flow passes through the cooperation of the first wind pressure wind tunnel 510 and the second wind pressure wind tunnel 520 to suck the hot wind in the radiation gap 340 into the plenum housing 330.

By adding the pressurizing hood 330 to the hot wind unit 300 and forming the cooking space 350 in the pressurizing hood 330; the hot air in the pot body is guided to the inner direction of the pressurizing cover 330, so that the food in the cooking space 350 is circularly heated by the heat of the hot air; the hot air in the pot body 200 is prevented from flowing towards a plurality of directions, on one hand, the hot air flows towards the non-cooking space too much, and a large amount of heat is lost; on the other hand, hot air in multiple directions collides and generates turbulence, so that hot air circulation cannot be normally performed, and the hot air cooking efficiency is reduced.

In addition, by additionally arranging the radiation gap 340 between the pressure increasing cover 330 and the heating device 310, and the wind flow blown out by the fan 320 flows through the heating device 310 and passes through the cooperation between the first wind pressure wind channel 510 and the second wind pressure wind channel 520, the wind flow at the radiation gap 340 can generate a negative pressure relative to the first wind pressure wind channel 510 and/or the second wind pressure wind channel 520, and then the wind flow generating the first wind pressure wind channel 510 and/or the second wind pressure wind channel 520 can suck the hot wind in the radiation gap 340 to enter the pressure increasing cover 330, so as to achieve the effect, on one hand, because the air in the radiation gap 340 can be directly heated by the heating device 310, especially the upper surface of the heating device 310, the hot wind temperature is high, the carried heat is more, and the heat in the region can be maximally absorbed to enter the cooking space 350 for performing fast hot wind cooking on the food, the cooking efficiency of hot air is improved; on the other hand, the hot air in the radiation gap 340 is timely evacuated and circulated by the cooperation of the first wind pressure duct 510 and the second wind pressure duct 520, so that the temperature in the radiation gap 340 can be greatly reduced, and the risk of tray melting caused by the overhigh temperature in the radiation gap 340 and the structures such as the heating device 310 or the supercharging cover 330 can be avoided.

The oil collecting area 338 is arranged at the bottom of the pressure boost cover 330, and the cooking space 350 is formed in the pressure boost cover 330, so that grease dripped by cooking food materials in the cooking process can be collected by the oil collecting area 338 arranged at the bottom of the pressure boost cover 330, and the pressure boost cover 330 can perform the function of collecting grease, thereby achieving multiple purposes, simplifying structural accessories and reducing cost.

In this embodiment, the fan 320 includes a hot air fan for blowing an air flow into the pressurizing cover 330, and a cold air fan disposed below the hot air fan for increasing the air flow to increase the circulation rate of the air flow in the boiler body.

As shown in fig. 2-6, the pressure-increasing cover 330 is provided with an air inlet 334 and an air return 335; the wind flows into the cooking space 350 through the wind inlet hole 334 and flows out through the wind return hole 335 to form a circulating wind flow in the cooking space. The upper part of the reflection cover 400 is circumferentially and continuously provided with placing steps 410, and the pressurizing cover 330 is provided with a clamping surface 336 matched with the placing steps 410; the plenum housing 330 abuts the placement step 410 via a snap surface 336. The air inlet hole 334 is disposed on a sidewall of the plenum cover 330, and the air inlet hole 334 is located at a lower portion of the clamping surface 336.

An air inlet hole 334 and an air return hole 335 are arranged on the pressurizing cover 330; wind flows into the cooking space 350 through the wind inlet hole 334 and flows out through the wind return hole 335 to form a circulating wind flow in the cooking space 350; the pressurizing cover 330 abuts against the circumferentially continuous placing steps 410 on the upper part of the reflecting cover 400 through the clamping surface 336, so that the circumferential direction of the installation matching part of the pressurizing cover 330 and the reflecting cover 400 is guaranteed to be sealed, and further, the air flow is guaranteed to enter the cooking space 350 through the air inlet hole 334 of the pressurizing cover 330; prevent the wind flow from flowing into other paths through the gap at the matching connection of the pressurizing hood 330 and the reflection hood 400, resulting in the loss of hot wind heat, or the risk of high temperature of the shell, scalding the user or melting the shell, resulting from the flow into the shell of the pot body 200 or other positions. The air inlet hole 334 is provided on the side wall of the pressure boost cover 330, and the air inlet hole 334 is provided at the lower portion of the engagement surface 336; the air flow is ensured to pass through the first air pressure duct 510 and the second air pressure duct 520 and then pass through the air inlet hole 334 on the side wall of the pressure increasing cover 330 to enter the cooking space 350, and because the cooking space 350 is positioned inside the pressure increasing cover, the design can guide the air direction of the air flow to enable the air flow to face the direction inside the pressure increasing cover 330, so that the air flow is more concentrated in the middle of the cooking space 350, uniform hot air circulation heating is ensured, and the phenomenon of uneven heating caused by the fact that the flow of hot air in the middle is small and a large amount of hot air flows through the peripheral part of the cooking space 350 is prevented; on the other hand, the hot wind passing through the second wind pressure channel 520 and the region of the wind inlet 334 below the fastening surface 336 can make the wind flow partially gather, thereby increasing the wind speed entering the cooking space 350 through the wind inlet on the sidewall of the plenum cover 330 and increasing the hot wind circulation efficiency.

As shown in fig. 2, the height H of the radiation gap 340 is 0-10mm, and in this embodiment, the height H of the radiation gap 340 is preferably 4mm, 5mm, 6mm, 7mm and 8 mm. The radiation gap 340 is arranged at a certain height to achieve a better effect, on one hand, hot air in the radiation gap 340 is sucked to efficiently utilize the part of heat to cook food materials in the cooking space 350 through hot air, and the hot air utilization rate and the hot air cooking efficiency are increased; on the other hand, the hot air in the radiation gap 340 is prevented from being not pumped out, so that the risk of tray melting is avoided. If the height H of the radiation gap is set to be too large, most of the wind flow of the first wind pressure wind channel 510 and/or the wind flow of the second wind pressure wind channel 520 directly flow through the radiation gap 340, and the hot wind in the radiation gap 340 does not generate negative pressure relative to the first wind pressure wind channel 510 and/or the second wind pressure wind channel 520, so that the hot wind cannot be sucked by the wind flow of the first wind pressure wind channel 510 and the second wind pressure wind channel 520 for utilizing the food materials in the cooking space 350, and the hot wind cannot reach the cooking space, thereby forming hot wind circulation at the bottom of the pot body, and further reducing the cooking efficiency of the hot wind; if the height H of radiation clearance sets up too little or do not have the radiation clearance, can cause the hot-blast unable outflow in the radiation clearance 340, and then cause the regional high temperature in radiation clearance 340, not only can make this regional heat can not by effectual utilization, cause thermal waste, still can cause this regional heat to be unable to disperse, have the risk of dissolving the dish.

As shown in fig. 2-3, a return air chamber 360 is disposed in the middle of the radiation gap 340, and the height of the return air chamber 360 is greater than the height of the connection between the radiation gap 340 and the second wind pressure duct 520 and/or the first wind pressure duct 510. The bottom of the plenum cover 330 has an upwardly concave groove 337, and the groove 337 forms the return air chamber. The air return cavity 360 is arranged in the middle of the radiation gap 340, so that on one hand, negative pressure can be formed at the radiation gap close to the second air pressure duct 520 and/or the first air pressure duct 510, that is, hot air in the first air pressure duct 510 and/or the second air pressure duct 520 can suck heated air in the radiation gap, especially hot air heated by the upper surface of the heating device, and the cooking efficiency of the hot air is improved; on the other hand, the middle part is provided with the air return cavity 360, so that the hot air part of the air return cavity 360 can form a small circulation through the air return hole 335 and the radiation gap 340, and the air flow at the lower part of the pot body is heated, so that the air flow blown out by the fan 320 is preheated, flows through the heating device 310 and enters the pressure increasing cover 330 through the first air pressure duct 510 and the second air pressure duct 520, the utilization rate of heat is enhanced, and the cooking efficiency is improved. The upward groove 337 is formed in the bottom of the pressurization cover 330, and the groove 337 forms the air return cavity 360, so that the manufacturing process is simplified, and the bottom of the pressurization cover 330 is recessed upwards, so that a volume cavity is formed in other areas of the bottom of the pressurization cover 330, and the volume cavity forms the oil collection area 338 of the pressurization cover 330, so that grease leaked in the cooking process of food materials can be collected, and the problem that the heating device 310 is polluted or cannot be collected by grease, and the cleaning is complicated is solved; and the combination of the upwardly concave recess 337 and the other region of the bottom of the boost enclosure 330 may direct the flow of grease to facilitate collection of grease into the other region of the bottom of the boost enclosure. In this embodiment, the middle region of the bottom of the pressure increasing cover 330 is provided with the upward groove 337, and then the peripheral region of the bottom of the pressure increasing cover 330 except the middle region forms a volume cavity, that is, the volume cavity is distributed on the peripheral region of the bottom wall of the pressure increasing cover, so that the grease drained in the cooking process of the food material can be collected in the region, and the grease collecting function is achieved.

Preferably, as shown in fig. 2-3 and 7-8, the hot air module 300 further includes a wind scooper 370 disposed inside the plenum cover 330 and penetrating vertically; the sidewall of the wind scooper 370 cooperates with the pressure increasing cover 330 to form a third wind pressure duct 530. The part of the vertical projection area 371 where the wind scooper is located and the air return hole 335 are overlapped is a closed area. By arranging the air guide cover 370, after hot air enters the inside of the supercharging cover 330 through the air inlet 334 of the supercharging cover 330, a part of the hot air directly flows upwards from the periphery of the cooking space 350, and then flows downwards after contacting the pot cover 100, and fully contacts food materials in the cooking space, so that hot air circulation is formed; the other part of the hot air flows upwards from the bottom through a third air pressure air channel 530 formed by the matching of the side wall of the air guide cover and the supercharging cover, so that the hot air flows upwards from the bottom of the food material; thereby guarantee to get into the inside hot-blast ability of pressure boost cover 330 and the edible material in the culinary art space and carry out abundant contact, the exchange of the heat that carries on of maximum efficiency promotes hot-blast culinary art efficiency. The part of the vertical projection area 371 where the wind scooper 370 is located and the part where the air return hole 335 is overlapped is set to be a closed area, so that grease in the cooking process is prevented from flowing to the lower part of the pot body or the heating device 310 through the air return hole 335 to pollute the pot body, the washing is complex, and even potential safety hazards are caused.

As a preferred embodiment, as shown in fig. 2 to 8, the pressure-increasing cover 330 is removably disposed in the reflection housing 400, the pressure-increasing cover 330 includes a pressure-increasing cover body 331 and a holding portion 332 connected to the pressure-increasing cover body 331 and extending outward from the pressure-increasing cover 330, and a holding gap 333 is formed between the holding portion 332 and the pot 200. The setting of the holding part 332, on the one hand convenience of customers passes through the holding part 332 end is got the pressure boost cover 330, on the other hand is convenient the inside other culinary art subassemblies of pressure boost cover 330 and pressure boost cover 330 are holistic to be placed, make the pressure boost cover 330 is convenient for wash and put in order, and guarantees that the placing of pressure boost cover and inside other culinary art subassemblies is more steady, firm. In this embodiment, the empty frying basket placed in the cooking space 350 can be conveniently taken out or placed at the same time through the holding portion 332 of the pressurizing hood 330, and the user can take the empty frying basket conveniently and cannot be scalded by the high temperature of the empty frying basket. Of course, it is understood that other cooking components for hot air circulation heating, such as a grill pan, etc., may be disposed in the cooking space 350. In addition, the existence of the holding gap 333 is convenient for the user to integrally take and place the pressurizing cover 330, and can prevent the heat of the pressurizing cover from being transferred to the pot body, so that the temperature on the surface of the pot body is increased, and the use by the user is inconvenient.

The above description is only for the embodiments of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the description in the above embodiments and the accompanying drawings. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the claims.

Claims (10)

1. A high-efficiency hot air cooking device comprises a pot body and a pot cover covered with the pot body; it is characterized in that a hot air component and a reflecting cover used for containing the hot air component are arranged in the pot body; the hot air assembly comprises a heating device, a fan arranged below the heating device and a pressurizing cover arranged above the heating device; a cooking space is formed in the pressure boost cover; a radiation gap is arranged between the pressurizing cover and the heating device; a first wind pressure air channel is formed between the heating device and the inner wall of the reflecting cover, and a second wind pressure air channel is formed between the inner wall of the reflecting cover and the supercharging cover; the wind flow blown out by the fan flows through the heating device and enters the supercharging cover through the first wind pressure wind channel and the second wind pressure wind channel, and the hot wind in the radiation gap is sucked and enters the supercharging cover through the matched wind flow at the first wind pressure wind channel and the second wind pressure wind channel; and an oil collecting area is arranged at the bottom of the pressurizing cover.

2. The high efficiency hot air cooking device of claim 1 wherein said plenum cage has an inlet vent and an outlet vent; wind flows into the cooking space through the wind inlet hole and flows out through the wind return hole to form a circulating wind flow in the cooking space.

3. The high-efficiency hot air cooking device according to claim 2, wherein the upper portion of the reflection cover is provided with a placing step circumferentially and continuously, and the pressure increasing cover is provided with a clamping surface matched with the placing step; the pressurizing cover is abutted against the placing step through the clamping surface.

4. The high efficiency hot air cooking device according to claim 3, wherein the air inlet hole is provided on a side wall of the pressure-increasing cover, and the air inlet hole is located at a lower portion of the engaging surface.

5. The high-efficiency hot-air cooking device according to claim 1, wherein the height of the radiation gap is 0 to 10 mm.

6. The high-efficiency hot air cooking device according to claim 1, wherein a return air chamber is provided in the middle of the radiation gap, and the height of the return air chamber is greater than the height of the radiation gap communicating with the second wind pressure duct and/or the first wind pressure duct.

7. The high efficiency hot air cooking device of claim 6 wherein the bottom of said plenum cage has an upwardly concave recess forming said return air chamber.

8. The high-efficiency hot air cooking device according to claim 2, wherein the hot air assembly further comprises a vertically-penetrating wind scooper disposed inside the pressure-increasing cover; and the side wall of the air guide cover is matched with the supercharging cover to form a third air pressure air channel.

9. The high-efficiency hot air cooking device according to claim 8, wherein the vertical projection area of the wind scooper is an enclosed area coinciding with the air return hole.

10. The high efficiency hot air cooking device of claim 1 wherein said booster cover is removably disposed within said reflector, said booster cover including a booster cover body and a grip portion connected to said booster cover body and extending outwardly therefrom, said grip portion having a grip gap with said pan body.

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