CN218942974U - Air fryer - Google Patents

Abstract

The utility model relates to an air fryer. The hot air of the existing air fryer can not smoothly flow into the air duct due to shielding of the protective cover. The utility model comprises a shell with a cooking cavity and a hot air cavity, wherein the cooking cavity is internally provided with a pot body, the hot air cavity is internally provided with a hot air component, the pot body is internally provided with a frying basket, a vertically arranged air channel is arranged between the outer side wall of the frying basket and the inner side wall of the pot body, hot air generated by the hot air component is input into the pot body to cook food materials in the frying basket, the bottom of the hot air cavity is provided with a protective net, the protective net is provided with vent holes vertically aligned with the air channel, and hot air sequentially passes through the vent holes and the air channel from top to bottom and then is conveyed to the bottom of the pot body. The air vent is arranged in the area above the air duct of the protective screen, the hot air flowing downwards along the side wall of the hot air cavity can flow to the bottom of the pot body and diffuse after vertically penetrating through the air vent and the air duct, so that the diffusion effect of the hot air in the pot body can be effectively improved, the effective heat transfer can be ensured by reducing the wind resistance, the cooking efficiency is ensured, and the use experience is improved.

Description

Air fryer

Technical Field

The utility model relates to the field of food processing, in particular to an air fryer.

Background

The existing air fryer comprises a shell with a cooking cavity and a hot air cavity, a pot body is arranged in the cooking cavity, a hot air component is arranged in the hot air cavity, a frying basket is arranged in the pot body, a vertically arranged air channel is arranged between the outer side wall of the frying basket and the inner side wall of the pot body, and hot air generated by the hot air component is input into the pot body to cook food materials in the frying basket. The cooking cavity top is equipped with the wind scooper that forms the hot air chamber, and the protection network middle part is equipped with the ventilative region of taking the bleeder vent, and the periphery is equipped with the go-between, and the protection network passes through the go-between and wind scooper rigid coupling for the hot-blast chamber that forms can carry to the cooking cavity through the bleeder vent.

In the use, because hot-blast chamber lateral wall bottom edge is located the go-between top for the hot-blast unable direct downward flow of edge hot-blast chamber lateral wall downflow can shelter from because of the go-between inner portion, need follow the go-between level inwards flow to ventilative region after the bleeder vent downflow earlier, both can lead to hot-blast flow path crooked and lead to hot-blast velocity of flow to reduce, and then reduce heat transfer efficiency, still can lead to in the wind channel that hot-blast can't be carried to the pot body lateral part, make the pot body bottom can't provide the hot-blast of heating food bottom for frying basket bottom, influence use experience.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides the air fryer which is provided with the vent holes vertically aligned with the air duct, so that hot air can smoothly flow into the bottom of the pot body, the hot air diffusion effect is improved, the heat transfer efficiency is improved by reducing wind resistance, and the use experience is improved.

The utility model is realized by the following modes: the utility model provides an air fryer, includes the casing of interior culinary art chamber and hot air chamber of establishing, the culinary art intracavity is equipped with the pot body, hot air intracavity is equipped with hot air component, be equipped with the basket of frying in the pot body, be equipped with the wind channel of vertical setting between the inner lateral wall of basket and the pot body, the hot air input pot body that hot air component produced is in order to make the food material of frying in the basket, hot air chamber bottom is equipped with the protection network, set up on the protection network with the ventilation hole of the vertical alignment in wind channel, hot air top-down passes through ventilation hole and wind channel in proper order and carries to pot body bottom. The air vent is arranged in the area above the air duct of the protective screen, the hot air flowing downwards along the side wall of the hot air cavity can flow to the bottom of the pot body and diffuse after vertically penetrating through the air vent and the air duct, so that the diffusion effect of the hot air in the pot body can be effectively improved, the food materials are ensured to be uniformly cooked, the wind resistance can be reduced by arranging a linear flow path, the effective heat transfer is further ensured by maintaining the flow velocity of the hot air, the cooking efficiency is ensured, and the use experience is improved.

Preferably, the middle part of the protective net is provided with a ventilation area, and the ventilation holes are equidistantly distributed along the periphery of the ventilation area. The ventilation area can be used for air flow to circulate between the hot air cavity and the inner cavity of the pot body, so that heat in the hot air cavity is conveyed to the pot body, low-temperature air flow in the pot body after the pot body contacts with food is guaranteed to flow back into the hot air cavity, and heat utilization efficiency is effectively improved. The evenly-distributed ventilation holes can reduce wind resistance when hot air flows, and further maintain the flow rate of the hot air.

Preferably, the bottom edge of the side wall of the hot air cavity is vertically aligned with the top edge of the side wall of the pot body. The bottom edge of the side wall of the hot air cavity, the ventilation holes and the top edge of the side wall of the pot body are vertically aligned, so that hot air flowing downwards along the side wall of the hot air cavity can be directly input into an air channel arranged at the side wall of the pot body after vertically penetrating through the ventilation holes, wind resistance during hot air flowing is effectively reduced, and heat transfer efficiency is further maintained by maintaining the flow rate of the hot air.

Preferably, the vent hole is oval, the major axis of vent hole is followed the protection network circumference sets up, both ensures through the area of restriction vent hole that there is better structural strength between go-between and the ventilative region, prevents the circumstances that the protection network takes place to warp, still increases the proportion that hot-blast chamber lateral wall bottom edge vertical projection falls into the vent hole through setting up the major axis of vent hole along protection network circumference, and then makes things convenient for hot-blast vertical crossing and flows into the wind channel.

Preferably, the ventilation holes are arc-shaped and are circumferentially separated by taking the axis of the protection net as the center, so that the connecting ring and the ventilation area can be firmly connected by utilizing the areas between the adjacent ventilation holes, the proportion of the vertical projection of the bottom edge of the side wall of the hot air cavity falling into the ventilation holes can be effectively increased, and the vertical penetration of hot air into the air channel is facilitated.

Preferably, a plurality of separated ventilation holes are formed in the ventilation area, so that good ventilation performance of all parts of the ventilation area is ensured, structural strength of the protection net can be ensured, and deformation and damage of the protection net are prevented.

Preferably, the horizontal section outlines of the pot body and the frying basket are circular, an annular air duct with a horizontal section is formed between the inner side wall of the pot body and the outer side wall of the frying basket, the annular air duct has larger section area, the hot air flow is effectively promoted, sufficient hot air is ensured to be obtained at the bottom of the frying basket, and balanced hot air is ensured to be obtained in all circumferential areas of the bottom of the pot body, so that all areas of the bottom wall of the food material can be effectively cooked.

Preferably, the top of the shell is provided with a wind scooper, the middle part of the bottom surface of the wind scooper forms a hot air cavity through upward sinking, and the bottom surface of the hot air cavity is provided with an opening communicated with the cooking cavity. The wind scooper is used for forming a hot air cavity, so that the effect of guiding hot air to flow to the vent holes is achieved, and the effect of blocking heat from being transferred upwards is achieved.

Preferably, the protection net covers the opening from bottom to top and is fixedly connected with the wind scooper. The protective net is fixedly connected with the periphery of the bottom surface of the air guide cover, so that the ventilation holes and the ventilation holes are ensured to be positioned in the area formed by surrounding the bottom edge of the side wall of the hot air cavity, and the hot air is conveniently conveyed.

Preferably, the periphery of the protective net is outwards extended to form a connecting ring, and the connecting ring is tightly attached to the periphery of the bottom surface of the wind scooper and fixedly connected with the periphery of the bottom surface of the wind scooper through a fastener. The connecting ring can be fixedly connected with the periphery of the bottom surface of the wind scooper in a fitting way, so that hot air is prevented from leaking out through a gap between the connecting ring and the wind scooper, the protection net is ensured to be firmly positioned at the bottom of the hot air cavity, the function of isolating the hot air cavity is achieved, and the use safety is ensured.

Preferably, the bottom of the frying basket is provided with an opening, and the hot air flowing into the bottom of the pot body from the air duct is diffused into the frying basket through the opening. The hot air at the bottom of the pot body can smoothly flow into the bottom of the frying basket through the open holes, so that the bottom of the food material is heated.

Preferably, the hot air cavity is in a shape of a truncated cone with a small upper part and a large lower part, so that radially flowing hot air is turned into downwards penetrating through the ventilation holes after contacting with the side wall of the hot air cavity. The hot air cavity is provided with an inclined wall surface, so that the hot air which is driven by the fan and flows horizontally is turned into downward flow after contacting with the hot air cavity, and the hot air can flow into the air duct after vertically penetrating through the vent hole.

The utility model has the beneficial effects that: the air vent is arranged in the area above the air duct of the protective screen, the hot air flowing downwards along the side wall of the hot air cavity can flow to the bottom of the pot body and diffuse after vertically penetrating through the air vent and the air duct, so that the diffusion effect of the hot air in the pot body can be effectively improved, the food materials are ensured to be uniformly cooked, the wind resistance can be reduced by arranging a linear flow path, the effective heat transfer is further ensured by maintaining the flow velocity of the hot air, the cooking efficiency is ensured, and the use experience is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of an air fryer according to an embodiment;

FIG. 2 is a schematic structural diagram of a protection net according to a second embodiment;

FIG. 3 is a schematic view partly in section illustrating an assembly structure of a protection net according to a second embodiment;

in the figure: 1. the frying pan comprises a shell, 11, a protective net, 111, ventilation holes, 112, a ventilation area, 113, a connecting ring, 12, a wind scooper, 13, a hot air component, 2, a pan body, 21 and a frying basket.

Detailed Description

The essential features of the utility model are further described in connection with the accompanying drawings and the detailed description.

Embodiment one:

the present embodiment provides an air fryer.

The air fryer shown in fig. 1 is composed of a shell 1 with a cooking cavity and a hot air cavity, wherein a pot body 2 is arranged in the cooking cavity, a hot air component 13 is arranged in the hot air cavity, a frying basket 21 is arranged in the pot body 2, a vertically arranged air channel is arranged between the outer side wall of the frying basket 21 and the inner side wall of the pot body 2, hot air generated by the hot air component 13 is input into the pot body 2 to cook food materials in the frying basket 21, a protective screen 11 is arranged at the bottom of the hot air cavity, a vent hole 111 vertically aligned with the air channel is formed in the protective screen 11, and hot air sequentially passes through the vent hole 111 and the air channel from top to bottom and then is conveyed to the bottom of the pot body 2.

In this embodiment, the hot air component is disposed in a hot air cavity, the hot air cavity is downward open and can be communicated with a cooking cavity, and the hot air generated by the hot air component 13 is input into the cooking cavity to cook food. The hot air component 13 comprises a fan and a heating element, the heating element is adjacent to the fan, the rotating fan extracts air in the cooking cavity and forms air flow flowing through the heating element, the air flow absorbs heat and forms hot air flowing back to the cooking cavity, and the hot air can be contacted with food materials after flowing into the cooking cavity and realize heat transfer, so that the food materials are gradually cooked from outside to inside. The temperature of the hot air is reduced due to contact with the food materials and the hot air is diffused into the cooking cavity, so that an air source is provided for the hot air component 13 to extract and heat again, and the air is circularly extracted and heated to improve the heat utilization efficiency.

In this embodiment, the bottom of the hot air chamber is provided with the protection net 11, the protection net 11 is used for shielding the hot air component 13, so that the hot air component 13 can be prevented from being damaged due to the entering of external foreign matters, a user can be prevented from contacting with the hot air component 13, and the use safety is ensured. The cooking cavity is internally provided with a detachable pot body 2, the pot body 2 is internally provided with a frying basket 21, the frying basket 21 is used for loading food materials, and when the cooking cavity is used, the food materials are installed in the frying basket 21 arranged in the pot body 2, and the hot air assembly 13 is started to heat the food materials so that the food materials are cooked.

In this embodiment, the frying basket 21 is suspended at the bottom of the pan body 2, so that an air channel for supplying hot air is formed between the outer side wall of the frying basket 21 and the inner side wall of the pan body 2, and the hot air from the hot air cavity passes through the air channel downwards and flows to the bottom of the pan body 2, so that the hot air diffuses at the bottom of the pan body 2 and uniformly contacts with the bottom of the food material in the frying basket 21, thereby ensuring that the bottom of the food material can be uniformly cooked. The area of the ventilation area 112 of the existing protective screen 11 is smaller than the area of the bottom wall of the hot air cavity, so that the corresponding areas of the protective screen 11 and the bottom edge of the side wall of the hot air cavity are solid areas which cannot be supplied with hot air, the hot air flowing downwards along the side wall of the hot air cavity needs to pass through radial flow and pass through the protective screen 11 after winding around the ventilation area 112, then to pass through radial diffusion to the side wall of the pot body 2 and flow into the air channel, the hot air flow path is bent to reduce the flow rate of the hot air, the heat transfer efficiency is reduced, and the hot air cannot be conveyed into the air channel at the side part of the pot body 2, so that the bottom of the pot body 2 cannot provide hot air for heating the bottom of the food material for the bottom of the frying basket 21, and the use experience is affected. Therefore, the air vent is formed in the protective screen 11, the air vent is vertically aligned with the air duct, hot air in the hot air cavity vertically penetrates through the air vent and directly flows into the air duct, the flow rate of the hot air is maintained by guiding the hot air to flow along a straight line, the heat transfer efficiency is further maintained, the flow rate of the hot air obtained at the bottom of the pot body 2 can be increased by guiding the hot air to flow directly to the hot air, the bottom of the food material is further ensured to be effectively cooked, and the use experience is improved.

Embodiment two:

in contrast to the first embodiment, the present embodiment provides a specific air fryer architecture.

As shown in fig. 2, the middle part of the protection net 11 is provided with a ventilation area 112, and the ventilation holes 111 are equally spaced along the periphery of the ventilation area 112. The hot air cavity and the pot body 2 can communicate through the ventilation area 112 and the ventilation holes arranged along the periphery of the ventilation area 112, so that heat in the hot air cavity can be timely conveyed to the pot body 2, and a hot air source for forming hot air can be provided for the hot air cavity. Specifically, the ventilation hole 111 and the ventilation area 112 are arranged at the periphery and used for conveying the hot air in the hot air cavity to the hot air direction pot body 2, and the middle part of the ventilation area 112 is used for conveying the pot body 2 to the hot air cavity to form a hot air source, so that air in the air fryer forms a circulating air flow, tail gas formed after hot air contacts with food materials can be reheated, heat loss can be effectively reduced by reducing the outward discharge, the flow rate of hot air can be improved, and further the heat transfer efficiency is improved.

In this embodiment, the bottom edge of the side wall of the hot air cavity is vertically aligned with the top edge of the side wall of the pan body 2, and the ventilation hole 111 is vertically aligned with the air duct, so that hot air flowing downwards along the side wall of the hot air cavity can flow into the air duct along the side wall of the pan body 2 after vertically passing through the ventilation hole 111, a straight line path for the flow of hot air is formed between the hot air cavity and the air duct, wind resistance is reduced by eliminating the number of turns on the hot air flow path, the flow rate of the hot air flowing into the air duct is effectively maintained, the hot air is accurately conveyed into the air duct, the bottom and the top of the pan body 2 can be ensured to obtain uniform hot air, and the food materials are ensured to be uniformly cooked.

In this embodiment, the ventilation holes 111 are disposed along the periphery of the ventilation area 112, and the wind resistance of the protection net 11 to the vertical flow of hot air is reduced by increasing the proportion of the ventilation holes 111 covering the vertical projection of the bottom edge of the bottom wall of the hot air cavity, so as to ensure that the hot air can be accurately and largely input into the air duct. Specifically, the ventilation holes 111 are arc-shaped and circumferentially spaced with the axis of the protection net 11 as the center, so that the proportion of the ventilation holes 111 covering the vertical projection of the bottom edge of the bottom wall of the hot air cavity is effectively increased. The central angle that single ventilation hole corresponds is alpha, and alpha=28 adjacent ventilation hole's interval distance is A, A=3 mm, the width of ventilation hole is L, L=4.5 mm, both ensures that the protection network has better structural strength, can also effectively reduce the windage, reduces hot air kinetic energy loss.

In this embodiment, the horizontal cross-sectional profiles of the pan body 2 and the frying basket 21 are circular, and an air channel with a circular horizontal cross section is formed between the inner side wall of the pan body 2 and the outer side wall of the frying basket 21. The frying basket 21 is lapped at the bottom of the pot body 2 in a coaxial arrangement mode, so that an annular air channel can be formed between the side wall of the pot body 2 and the side wall of the frying basket 21, hot air can be obtained from each area on the periphery of the bottom of the pot body 2, a diffusion cavity can be formed between the bottom wall of the pot body 2 and the bottom wall of the frying basket 21, the hot air flows into the diffusion cavity through the air channel, and is uniformly diffused in the diffusion cavity and then is input into the frying basket 21 from bottom to top through the opening holes.

In this embodiment, the top of the housing 1 is provided with a wind scooper 12 (as shown in fig. 3), the middle of the bottom surface of the wind scooper 12 is recessed upward to form a hot air cavity, and the periphery of the hot air cavity can be attached to and fixedly connected with the connecting ring 113, so that the hot air cavity is communicated with the pot body 2 through the protective net 11 covered on the bottom surface. Specifically, the periphery of the protection net 11 extends outwards to form a connection ring 113, the protection net 11 covers the periphery of the bottom surface of the air guide cover 12 from bottom to top, and is fixedly locked by a fastener, so that hot air is prevented from leaking out through a gap between the protection net 11 and the air guide cover 12, and the hot air is ensured to flow along a preset path. The hot air chamber is in a shape of a circular table with a small upper part and a large lower part, so that the radially flowing hot air is turned into downwards penetrating through the ventilation hole 111 after contacting with the side wall of the hot air chamber.

In this embodiment, a plurality of separated ventilation holes are formed in the ventilation area 112, and the ventilation holes are uniformly formed, so that the air flow can be realized at the periphery and the middle of the ventilation area 112, and further, the air flow can be ensured to flow in a rapid circulation manner between the hot air cavity and the cooking cavity, and the heat conveying efficiency is improved.

In this embodiment, the bottom of the frying basket 21 is provided with openings, and the hot air flowing into the bottom of the pot 2 from the air duct is diffused into the frying basket 21 through the openings. The openings are evenly spaced on the bottom wall of the basket 21 to ensure that the hot air in the diffusion chamber is conveyed upward into the basket 21 and heats and cooks the bottom of the food product.

It should be understood that the ventilation hole 111 may also be oval, and the major axis of the ventilation hole 111 is disposed along the circumferential direction of the protection net 11, and the ventilation hole 111 uses the feature that the major axis of the ventilation hole has a larger size to increase the proportion of the ventilation hole 111 covering the vertical projection of the bottom edge of the bottom wall of the hot air cavity, which should also be regarded as a specific implementation of the embodiment.

It is understood that the parameter A may be 4mm, 5mm, 6mm, etc. as long as the requirement that A is not less than 3mm is satisfied.

It will be appreciated that the parameter α may also be 25 °, 29 °, 32 °, 35 °, etc., as long as the requirement of 25 ° and α and 35 ° is met.

It is understood that the parameter L may be 4mm, 5mm, 6mm, etc. as long as the requirement that A is 4 mm.ltoreq.A is 6mm is met.

Other structures and effects of the air fryer in this embodiment are the same as those of the embodiment, and will not be described again.

Claims (10)

1. The utility model provides an air fryer, includes the casing of interior culinary art chamber and hot-blast chamber of establishing, the culinary art intracavity is equipped with the pot body, hot-blast intracavity is equipped with hot-blast subassembly, be equipped with the basket of frying in the pot body, be equipped with the wind channel of vertical setting between the inner lateral wall of basket and the pot body, the hot-blast material in order to make the basket of frying of hot-blast subassembly production is imported to the pot body, a serial communication port, hot-blast chamber bottom is equipped with the protection network, set up on the protection network with the ventilation hole of the vertical alignment in wind channel, hot-blast top-down passes through ventilation hole and wind channel in proper order and carries to pot body bottom after.

2. The air fryer of claim 1, wherein said protective mesh has a ventilation area in the middle, said ventilation holes being equally spaced along the periphery of the ventilation area.

3. An air fryer according to claim 2, wherein said hot air chamber side wall bottom edge is vertically aligned with said body side wall top edge.

4. The air fryer of claim 2, wherein said vent holes are oval in shape, the major axes of said vent holes being circumferentially disposed along said guard mesh; or the vent holes are arc-shaped and circumferentially distributed by taking the axis of the protective net as the center.

5. An air fryer according to claim 2, wherein said ventilation zone is provided with a plurality of spaced ventilation holes; or the horizontal section outlines of the pot body and the frying basket are circular; or an air channel with a circular horizontal section is formed between the inner side wall of the pot body and the outer side wall of the frying basket.

6. The air fryer of any one of claims 1-5, wherein said housing top is provided with a hood, a middle portion of a bottom surface of said hood is recessed upward to form a hot air cavity, and an opening is provided in a bottom surface of said hot air cavity to communicate with said cooking cavity.

7. The air fryer according to claim 6, wherein said protective screen covers said opening from bottom to top and is fixedly connected to said air guiding hood.

8. The air fryer according to claim 7, wherein the periphery of said protective net is formed by extending outwardly to form a connecting ring, said connecting ring being closely attached to the periphery of the bottom surface of the air guiding cover and fixedly connected by fasteners.

9. The air fryer of claim 6, wherein said basket bottom is provided with openings through which hot air flowing from the tunnel into the bottom of the body diffuses into said basket.

10. The air fryer according to claim 6, wherein said hot air chamber is frustoconical with a smaller top and a larger bottom so that radially flowing hot air is diverted downwardly through the vents upon contact with the hot air chamber sidewalls.

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