CN114052528B

CN114052528B - Cooking utensil

Info

Publication number: CN114052528B
Application number: CN202111531855.3A
Authority: CN
Inventors: 林刚; 钟昌理; 孙克磊
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2023-11-21
Anticipated expiration: 2041-12-15
Also published as: CN114052528A

Abstract

The invention provides a cooking utensil which comprises a utensil body, a cover plate, a flow guiding device, fan blades, a heating piece, a power part and a controller. The cover plate is switchable between a first state and a second state relative to the appliance body; the cooking utensil at least has a hot air mode and an empty frying mode, the hot air mode corresponds to the first state, and the empty frying mode corresponds to the second state; wherein the first opening has a smaller cross-sectional area through flow in the first state than the first opening has in the second state. The arrangement enables the flow cross-section area of the first opening and the working state of the heating element to be adjusted in a targeted manner according to the working mode of the cooking appliance, so that the heat exchange mode of heat and food materials can be adjusted, and the flow path of hot air can be adjusted to meet the use requirements of a hot air mode and an air frying mode. This setting is favorable to promoting the performance of product, and then is favorable to the market competition of product.

Description

Cooking utensil

Technical Field

The invention relates to the technical field of cooking appliances, in particular to a cooking appliance.

Background

In the related art, the air fryer has no hot air function, and the steaming and baking integrated machine has no air frying function, i.e. no product can have both the air frying function and the hot air function.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

To this end, an aspect of the present invention proposes a cooking appliance.

In view of the above, an aspect of the present invention provides a cooking appliance including: the cooking device comprises a device body, a first opening and a second opening, wherein the device body is provided with a cooking cavity, and the first opening and the second opening are communicated with the cooking cavity; the cover plate is movably connected with the appliance body and can move relative to the appliance body to adjust the overcurrent cross-sectional area of the first opening; the air guide device is arranged on one side of the appliance body, and is provided with an air channel, a first end of the air channel is connected with the first opening, and a second end of the air channel is connected with the second opening; the fan blade is arranged at the first end of the flow guiding device and is communicated with the air duct; the heating piece is arranged at the first end of the flow guiding device and is communicated with the air duct; the power part is connected with the fan blades and the cover plate and is used for driving the cover plate and the fan blades to work; and the controller is electrically connected with the heating element and the power part and is used for controlling the heating element and the power part to work according to the working mode of the cooking utensil.

The invention provides a cooking utensil which comprises a utensil body, a cover plate, a flow guiding device, fan blades, a heating piece, a power part and a controller. The utensil body includes cooking cavity and first opening and the second opening of communicating with cooking cavity. The air guide device is provided with an air channel, the air channel is provided with a first end and a second end, the first end of the air channel is connected with the first opening, and the second end of the air channel is connected with the second opening.

Specifically, the controller is electrically connected with the power part and the heating element. The controller can control the power part to work according to the working mode of the cooking utensil so as to adjust the matching size of the cover plate and the first opening, and then adjust the overcurrent cross-sectional area of the first opening. The controller can also control the power part to work according to the working mode of the cooking utensil so as to drive the fan blade to rotate or stop rotating. The controller can also control the heating element to work or stop working according to the working mode of the cooking utensil. That is, the operation mode of the cooking appliance has a correlation with the overcurrent sectional area of the first opening and the operation state of the heat generating member.

The application reasonably sets the matching structure of the appliance body, the cover plate, the flow guiding device, the fan blade, the heating element, the power part and the controller.

Reduce the open-ended cross-sectional area that overflows, when can guaranteeing power portion drive flabellum and rotate, the air in the culinary art chamber can inhale the wind channel by first opening under the effect of flabellum, can reduce even avoid through the heat of first opening to the transmission of culinary art intracavity with the mode of thermal radiation again, the flabellum rotates and can takes away the heat of piece department that generates heat, after the wind channel, flows to the culinary art chamber through the second opening to hot-blast circulation mode, with the mode of stable low heat flux and eat material heat transfer, reach the purpose of culinary art edible material.

Or the cross-sectional area of the first opening is increased, heat generated by the operation of the heating element is transferred to the food material in a radiation mode through the first opening, meanwhile, the fan blades rotate to generate large air quantity, and the large air quantity feeds the heat of the heating element into the cooking cavity through the air duct and the second opening, so that the food material is cooked in a high heat flux heat exchange mode.

The arrangement enables the flow cross-section area of the first opening and the working state of the heating element to be adjusted in a targeted manner according to the working mode of the cooking appliance, so that the heat exchange mode of heat and food materials can be adjusted, and the flow path of hot air can be adjusted to meet the use requirements of a hot air mode and an air frying mode. This setting is favorable to promoting the performance of product, and then is favorable to the market competition of product.

According to the cooking utensil disclosed by the invention, the following additional technical characteristics can be further provided:

in the above technical solution, further, the cover plate is switchable between a first state and a second state with respect to the appliance body; the cooking utensil at least has a hot air mode and an empty frying mode, the hot air mode corresponds to the first state, and the empty frying mode corresponds to the second state; wherein the first opening has a smaller cross-sectional area through flow in the first state than the first opening has in the second state.

In this solution, the cooking appliance has at least a hot air mode and a frying mode, the cover being switchable between a first state and a second state with respect to the appliance body. The operating mode of the cooking appliance has a correlation with the through-flow cross-sectional area of the first opening. Specifically, the hot air mode corresponds to a first state, the control mode corresponds to a second state, and the cross-sectional area of the first opening in the first state is smaller than the cross-sectional area of the first opening in the second state.

Specifically, in the hot air mode, the controller controls the power part to work so as to drive the cover plate to switch to a first state, and in the first state, the overcurrent cross-sectional area of the first opening is smaller, so that heat generated by the work of the heating element can be prevented from being transferred into the cooking cavity in a radiation mode. Meanwhile, the controller controls the power part to work so as to drive the fan blades to rotate, the fan blades can rotate to generate large air quantity, most of heat generated by the work of the heating pipe is taken away by the large air quantity, after the air channel passes through the second opening, the air flows to the cooking cavity to form hot air circulation, a stable heat exchange mode with lower heat flux energy is provided for food materials, and the hot air requirement is met.

Specifically, in the air-frying mode, the controller controls the power part to work so as to drive the cover plate to switch to a second state, and in the second state, the overcurrent cross-sectional area of the first opening is larger, heat is mainly transferred in a radiation heat exchange mode, and at the moment, the heat can be transferred to the food materials in a radiation mode through the first opening. Meanwhile, the controller controls the power part to work so as to drive the fan blades to rotate, the fan blades can rotate to generate large air quantity, and the large air quantity sends heat generated by the work of the heating part into the cooking cavity through the air duct and the second opening, so that high heat flux heat exchange is formed, and the air frying requirement is met.

In any of the above solutions, further, the cover plate includes a third opening and a shielding portion; in the first state, the third opening is arranged corresponding to the first part of the first opening, and the shielding part can shield the second part of the first opening; in the second state, the third opening is arranged corresponding to the third part of the first opening, and the shielding part can avoid the first opening.

In this solution, the cover plate comprises a third opening and a shielding portion.

In the first state, the third opening is disposed corresponding to the first portion of the first opening, and in the second state, the third opening is disposed corresponding to the third portion of the first opening. That is, the third opening communicates with the first opening, whether in the first state or the second state. Therefore, in the hot air mode and the air frying mode, when the power part drives the fan blades to rotate, air in the cooking cavity can be sucked into the air channel through the first opening under the action of the fan blades.

In addition, in the first state, the shielding part can shield the second part of the first opening, namely, the shielding part plays a role of reducing the overcurrent cross-sectional area of the first opening so as to prevent heat generated by the operation of the heating element from being transferred into the cooking cavity in a radiation mode.

In addition, in the second state, the shielding portion can avoid the first opening, that is, the first opening is not shielded by the shielding portion, that is, the effect of increasing the flow cross-sectional area of the first opening is achieved. In this way, heat transfer in a radiation heat exchange manner can be ensured.

In any of the above embodiments, further, the first opening includes a plurality of first flow holes; the cover plate also comprises a plurality of second overflow holes, and a shielding part is formed at the part of the cover plate between two adjacent second overflow holes; in the first state, the shielding part is arranged corresponding to a part of the first overflow holes; in the second state, the first overflow hole and the second overflow hole are correspondingly arranged.

In this technical scheme, first opening includes a plurality of first overflow holes, and the apron includes a plurality of second overflow holes, and the apron is located the part that two adjacent second overflow holes between and forms the shelter from the portion. Through the cooperation structure of rationally setting up a plurality of first overflow holes, a plurality of second overflow holes and shielding part for when the first state, shielding part and a part of first overflow holes in a plurality of first overflow holes correspond the setting, i.e. shielding part can shelter from a part of first overflow holes in a plurality of first overflow holes, in order to play the effect of reducing first open-ended cross-sectional area that overflows.

In addition, in the second state, the first overflow hole and the second overflow hole are correspondingly arranged, and the shielding part avoids the first overflow hole so as to increase the overflow cross-sectional area of the first opening.

The arrangement provides an effective and reliable structural support for the cooking appliance having both a hot air mode and a deep-fry mode.

It is understood that the cover plate includes a third opening and a plurality of second overflow holes, the plurality of second overflow holes are located at the peripheral side of the third opening, and a portion of the cover plate located between two adjacent second overflow holes forms a shielding portion.

In any of the above embodiments, further, the cross-section of the third opening is elliptical in shape.

In this technical scheme, through rationally setting up third open-ended structure for the shape of third open-ended cross section is oval, and this setting can guarantee that the apron removes for the utensil body, in order to switch between first state and second state, the third opening all can correspond with a part of first open-ended, can not appear influencing the condition that the flabellum induced drafted because of the removal of apron. Has the advantages of simple processing technology and low production cost.

In any of the above technical solutions, further, one of the power portion and the cover plate is provided with a rack, and the other is provided with a gear, and the rack is meshed with the gear.

In the technical scheme, the matching structure of the power part and the cover plate is reasonably arranged, so that one of the power part and the cover plate is provided with a rack, and the other is provided with a gear. If the power part is provided with a rack, the cover plate is provided with a gear; for another example, the power part is provided with a gear, and the cover plate is provided with a rack. The rack is meshed with the gear, and the gear can drive the rack to move by rotation of the gear, so that the purpose that the cover plate moves relative to the appliance body is achieved.

The device has the advantages of simple structure, convenient processing and low production cost.

In any of the above technical solutions, further, one of the power portion and the cover plate is provided with a worm wheel, and the other is provided with a worm, and the worm wheel is meshed with the worm.

In the technical scheme, the matching structure of the power part and the cover plate is reasonably arranged, so that one of the power part and the cover plate is provided with a worm wheel, and the other is provided with a worm. If the power part is provided with a worm wheel, the cover plate is provided with a worm; for another example, the power part is provided with a worm, and the cover plate is provided with a worm wheel. The worm wheel is meshed with the worm, and the worm wheel can drive the worm to move, so that the purpose that the cover plate moves relative to the appliance body is achieved.

In any of the above technical solutions, further, the power portion includes a rotating shaft, the cover plate is provided with a shaft hole, and the rotating shaft is connected to the shaft hole in a penetrating manner.

In this technical scheme, power portion includes the pivot, and the apron is equipped with the shaft hole, and the pivot passes the shaft hole and is connected with the pore wall in shaft hole, and the pivot rotates in order to drive the apron and rotate for the pivot, and then realizes the purpose that the apron moved for the utensil body.

Specifically, the cover plate is provided with a third opening, and the cross section of the third opening is elliptical in shape.

In any of the above embodiments, further, the appliance body has a top wall and a side wall, the side wall is connected to one side of the top wall, one of the top wall and the side wall is provided with the first opening, and at least one of the top wall and the side wall is provided with the second opening.

In this solution, the appliance body comprises a top wall and a side wall, the side wall being connected to the top wall. The positions of the first opening and the second opening can be set according to specific practical use requirements.

Specifically, the top wall of the appliance body is provided with a first opening. Alternatively, the side wall of the appliance body is provided with a first opening.

Specifically, the top wall of the appliance body is provided with a second opening. Alternatively, the side wall of the appliance body is provided with a second opening. Alternatively, the top wall and the side wall of the appliance body are both provided with the second opening.

When the top wall and the side wall of the appliance body are both provided with the second openings, that is, the number of the second openings is multiple, one part of the second openings in the plurality of second openings is arranged on the top wall of the appliance body, and the other part of the second openings in the plurality of second openings is arranged on the side wall of the appliance body. This setting has increased the cooperation area of second opening and culinary art chamber, has increased the cooperation angle of second opening and culinary art chamber, is favorable to promoting the temperature equilibrium and the uniformity of the different positions department in the culinary art chamber, can guarantee the equilibrium that the food material is heated, is favorable to promoting the food material taste.

In any of the above embodiments, further, the first opening is formed in the top wall, and the second opening is formed in the side wall.

In this technical solution, the arrangement positions of the first opening and the second opening are specifically defined, where the first opening is provided in the top wall and the second opening is provided in the side wall.

Specifically, the side wall of the appliance body is provided with a second opening, and hot air flows to the cooking cavity from the second opening, so that hot air forms a hot air circulation in the horizontal direction, and the temperature in the cooking cavity is balanced.

Specifically, the top wall of the appliance body is provided with the first opening, so that radiation-enhanced heat exchange is facilitated, and the air frying effect can be ensured.

In any of the above technical solutions, further, the number of the second openings is plural, and the air duct includes: the first air duct section is provided with a third end and a fourth end, and the third end is connected with the first opening; the second air duct sections are provided with fifth ends and sixth ends, the fifth ends of the second air duct sections are connected with the fourth ends, and the sixth ends of the second air duct sections are connected with a second opening.

In this technical solution, the air duct comprises a first air duct section and a plurality of second air duct sections. And reasonably defines a first opening, a first air duct section, a plurality of second air duct sections and a matching structure of the second openings, in particular, the first air duct section is provided with a third end and a fourth end, the second air duct section is provided with a fifth end and a sixth end, the fifth end of each second air duct section is connected with the fourth end of the first air duct section, and the sixth end of each second air duct section is connected with one second opening. The arrangement ensures that the air flow flowing into the air duct from the first opening is divided into a plurality of strands by the plurality of second air duct sections, and a plurality of strands of hot air flow simultaneously flows into the cooking cavity from different directions and different positions, so that hot air circulation in a plurality of directions is formed, the temperature in the cooking cavity is favorably improved to be balanced, and effective and reliable structural support is provided for the balanced and consistent heating of food materials.

In any of the above solutions, further, the flow guiding device includes: the cover body is connected with the outer surface of the appliance body, covers the first opening, is provided with a fourth opening, and is positioned between the cover body and the appliance body; the honeycomb duct is positioned at one side of the cover body and is connected between the fourth opening and the second opening; the heating element is positioned between the cover body and the appliance body and is positioned at the periphery of the fourth opening; wherein, the flabellum locates the honeycomb duct.

In this technical scheme, the guiding device includes the cover body and honeycomb duct, and the cover body is connected with the surface of utensil body, and the region that is used for holding the heating element is encircled between the surface of the interior surface of the cover body and the surface of utensil body promptly.

It can be appreciated that the heat generated by the operation of the heating element can effectively heat the air in the area between the cover body and the appliance body, provide effective and reliable structural support for heating the food in the cooking cavity in the hot air circulation mode in the hot air mode, and provide effective and reliable structural support for transferring heat to the food in the cooking cavity in the radiation heat exchange mode in the air frying mode.

In addition, the heating element is positioned on the peripheral side of the fourth opening, and when the fan blades rotate, uniform mixing of air and heat generated by the operation of the heating element can be ensured.

In addition, the cover plate is located between the cover body and the appliance body, and the cover body and the appliance body have the function of protecting the cover plate, so that external force is prevented from directly acting on the cover plate, the service life of a product is prolonged, and structural support is provided for the cover plate to move relative to the appliance body.

In any of the above technical solutions, further, in the cooking appliance, the flow guiding tube includes: the first pipe wall is connected with the cover body, a part of the first pipe wall corresponding to the cover body is sunken to form a volute, and the fan blades are positioned at the volute; the second pipe wall is connected to one side of the first pipe wall facing the cover body, and the second pipe wall is positioned on one side of the volute; wherein, form the first part in wind channel between cover body and the spiral case, form the second part in wind channel between first pipe wall and the second pipe wall.

In the technical scheme, the flow guide pipe comprises a first pipe wall and a second pipe wall, the cover body, the first pipe wall and the second pipe wall are matched, so that a first part of an air channel is formed between the cover body and the volute, and a second part of the air channel is formed between the first pipe wall and the second pipe wall.

Specifically, the part of the first pipe wall corresponding to the cover body is sunken to form a volute, the fan blades are positioned at the volute, and after air flows into the air duct, the air flows along a continuous flow channel formed by the volute and the cover body and then flows to the second part of the air duct. The continuous flow passage formed between the volute and the wall surface of the cover body has the diffusion effect, the air flowing in from the first opening has high speed, the air flows through the continuous flow passage with uniformly increased area, the deflection of the air is reduced, the flow loss of the air is reduced, more energy is converted into dynamic pressure, the air quantity is improved, the conditions of large flow loss of the air, poor aerodynamic performance and reduction of the air outlet quantity caused by overlarge speed are avoided; further, the continuous flow channel has the function of collecting flow, reduces the frequency of phenomena such as air flow separation, vortex and the like, and is beneficial to reducing the operation noise of products.

In any of the above technical solutions, further, the cooking appliance further includes: and the sealing piece is positioned at the joint of the cover body and the appliance body.

In this technical scheme, cooking utensil still includes the sealing member, and the sealing member is located the junction of the cover body and the utensil body, utilizes the sealing member to seal the junction of the cover body and the utensil body to guarantee the gas tightness between the cover body and the utensil body, avoid the air current to leak by the junction of the cover body and the utensil body, can guarantee the amount of wind, be favorable to reducing the running noise of product.

In particular, the seal comprises a rubber pad and/or a silicone pad.

In any of the above technical solutions, further, the heating element includes a heating tube, the heating tube is annular, and the fourth opening is located in an area surrounded by the heating tube; the cover body is provided with a connecting piece which is used for fixing the heating tube.

In this technical scheme, the piece that generates heat includes the heating tube, and the heating tube is annular, and the fourth opening is located the region that the heating tube encloses to guarantee the effective heat transfer of flow direction fourth open-ended air and heating tube, when the fan work, can guarantee the air and the heat homogeneous mixing that the piece work produced that generates heat.

Further, the cover body is provided with a connecting piece, and the heating tube is fixed by the connecting piece. The heating tube and the cover body are assembled into a whole, so that the heating tube cannot shift relative to the cover body, the matching size of the heating tube and the fourth opening can be ensured, and stable and reliable structural support is provided for the cooking effectiveness and feasibility of the cooking appliance.

In any of the above solutions, further, the connecting piece includes: the first clamping part is arranged on the cover body, a part of the first clamping part is recessed towards the direction of the cover body to form a first clamping groove, and the first part of the heating element is clamped in the first clamping groove; the second clamping part is detachably connected with the cover body, a part of the second clamping part is sunken towards the rotation axis direction of the fan to form a second clamping groove, and the second part of the heating piece is clamped in the second clamping groove.

In this technical scheme, the connecting piece includes first joint portion and second joint portion. The first clamping part and the second clamping part are both used for fixing the heating piece.

Specifically, a part of the first clamping portion is recessed towards the direction of the cover body to form a first clamping groove, a part of the second clamping portion is recessed towards the rotation axis direction of the fan to form a second clamping groove, the first part of the heating element is clamped in the first clamping groove, and the second part of the heating element is clamped in the second clamping groove. That is, the heating element is in clamping fit with the first clamping groove, and the heating element is in clamping fit with the second clamping groove. Because the sunken direction of first draw-in groove is different with the sunken direction of second draw-in groove, so first joint portion and second joint portion can follow a plurality of directions, a plurality of angles and generate heat the piece and effectively assemble, have restricted the displacement that generates heat the piece for the cover body, avoid generating heat the condition emergence of piece by cover body department landing.

Specifically, the cover body and the first clamping part are integrally formed, and the structure is provided with the assembly process of the cover body and the first clamping part, so that the assembly and subsequent disassembly processes of the cover body and the first clamping part are simplified, the assembly and disassembly efficiency is improved, and the production and maintenance cost can be reduced. In addition, the cover body and the first clamping part are integrally formed, so that the requirement on the dimensional accuracy of product molding can be met.

Specifically, the cover body is detachably connected with the second clamping part, and the cover body is connected with the second clamping part in any one of or a combination of the following modes: the clamping connection, the screw connection, the magnetic attraction and the fastening connection through a fastener (such as a screw, a bolt or a rivet).

The cover body is detachably connected with the second clamping part, namely, the disassembly and assembly of the second clamping part and the mounting position of the second clamping part relative to the cover body can be determined according to actual conditions, so that the cover body is applicable to the use requirements of heating parts of different models, the adaptability of products is high, and the use performance of the products is improved.

In any of the above technical solutions, further, the cooking appliance further includes: the shell is connected with the appliance body, a containing cavity is surrounded between the shell and the appliance body, the flow guiding device is positioned in the containing cavity, and the controller is arranged in the containing cavity; the microwave generator is arranged in the accommodating cavity and communicated with the cooking cavity, and is electrically connected with the controller.

In this technical scheme, cooking utensil still includes shell and microwave generator. Wherein, the shell is connected with the utensil body, surrounds between shell and the utensil body and holds the chamber, holds the chamber and has the effect of holding guiding device and location controller to play the effect of keeping apart guiding device and controller, avoid steam, the filth etc. in the environment to enter into guiding device and controller department, guarantee the cleanliness of guiding device and controller department, be favorable to prolonging the life of product.

Further, the microwave generator is arranged in the accommodating cavity and is communicated with the cooking cavity. The controller can control the microwave generator to work because the microwave generator is electrically connected with the controller. The microwave generator works to convey microwaves into the cooking cavity, and food materials in the cooking cavity are heated by the microwaves, so that the purpose of cooking the food materials is achieved.

In any of the above technical solutions, further, the cooking appliance further includes: the door body is connected with the appliance body and is used for opening or closing the cooking cavity; the door body is provided with a heat insulation part and a control panel, and the controller of the control panel is electrically connected with

In this technical scheme, cooking utensil still includes the door body, and the door body is connected with the utensil body, and the door body can rotate for the utensil body. Specifically, the door body has an effect of opening or closing the cooking cavity.

Because the door body is provided with the heat insulation part, the heat insulation part has the function of blocking heat transfer so as to block the heat in the cooking cavity of the cooking utensil from being transferred to the door body. The temperature of the outer surface of the door body is reduced, so that the situation of scalding a user can be effectively avoided, and the safety and reliability of product use are improved.

Further, the door body is provided with a control panel, the control panel is electrically connected with the controller, and a user can achieve the purpose of cooking food materials by triggering the control panel.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 illustrates a first exploded view of a cooking appliance according to an embodiment of the present invention;

fig. 2 illustrates a second exploded view of a cooking appliance according to an embodiment of the present invention;

FIG. 3 shows a schematic structural view of an appliance body and a microwave generator according to an embodiment of the present invention;

FIG. 4 shows a schematic structural view of an appliance body, microwave generator, deflector and second motor according to an embodiment of the present invention;

FIG. 5 shows a schematic structural view of an appliance body of an embodiment of the present invention;

FIG. 6 shows an exploded view of a first view of the appliance body, cover plate and power part of an embodiment of the present invention;

FIG. 7 shows an exploded view of a second view of the appliance body, cover plate and power part of an embodiment of the present invention;

FIG. 8 shows a schematic structural view of an appliance body, cover plate and power section from a first perspective in a first state, according to an embodiment of the present invention;

FIG. 9 shows a schematic structural view of an appliance body, cover plate and power section from a second perspective in a first state, according to an embodiment of the present invention;

FIG. 10 shows a schematic structural view of an appliance body, cover plate and power section from a first perspective in a second state, according to an embodiment of the present invention;

FIG. 11 shows a schematic structural view of an appliance body, cover plate and power section from a second perspective in a second state, according to an embodiment of the present invention;

FIG. 12 is a schematic view of a heat generating element, fan blades and deflector according to an embodiment of the present invention;

FIG. 13 is an exploded view of the heat generating component, fan blade and deflector of FIG. 12.

Wherein, the correspondence between the reference numerals and the component names in fig. 1 to 13 is:

100 cooking appliance, 110 appliance body, 112 cooking cavity, 114 first opening, 116 second opening, 118 top wall, 120 side wall, 122 first flow aperture, 130 flow guide, 132 air duct, 138 housing, 140 fourth opening, 142 flow guide, 144 first tube wall, 146 second tube wall, 148 volute, 149 power section, 150 first motor, 152 second motors, 154 fan blades, 156 third air duct sections, 158 fourth air duct sections, 160 heating elements, 180 connecting elements, 182 first clamping parts, 184 second clamping parts, 190 shells, 200 microwave generators, 210 door bodies, 220 cover plates, 222 third openings, 224 shielding parts, 226 second overflow holes, 230 racks and 240 gears.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

A cooking appliance 100 according to some embodiments of the present invention is described below with reference to fig. 1 to 13.

Example 1:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, an embodiment of a first aspect of the present invention provides a cooking apparatus 100, where the cooking apparatus 100 includes an apparatus body 110, a cover 220, a flow guiding device 130, a fan blade 154, a heat generating member 160, a power portion 149 and a controller.

The appliance body 110 is provided with a cooking cavity 112, a first opening 114 and a second opening 116, and the first opening 114 and the second opening 116 are communicated with the cooking cavity 112.

The cover 220 is movably connected with the appliance body 110, and the cover 220 is movable relative to the appliance body 110 to adjust the flow cross-sectional area of the first opening 114.

The guiding device 130 is disposed on one side of the device body 110, the guiding device 130 is provided with an air duct 132, a first end of the air duct 132 is connected to the first opening 114, and a second end of the air duct 132 is connected to the second opening 116.

The fan blade 154 is disposed at a first end of the air guiding device 130 and is in communication with the air duct 132.

The heating element 160 is disposed at a first end of the guiding device 130 and is in communication with the air duct 132.

The power part 149 is connected with the fan blade 154 and the cover plate 220, and the power part 149 is used for driving the cover plate 220 and the fan blade 154 to work.

The controller is electrically connected with the heat generating member 160 and the power part 149, and the controller is used for controlling the heat generating member 160 and the power part 149 to operate according to the operation mode of the cooking appliance 100.

In detail, the cooking appliance 100 includes an appliance body 110, a cover plate 220, a flow guiding device 130, a fan blade 154, a heat generating member 160, a power part 149, and a controller. The appliance body 110 includes a cooking cavity 112 and first and second openings 114 and 116 in communication with the cooking cavity 112. The deflector 130 is provided with an air duct 132, the air duct 132 having a first end and a second end, the first end of the air duct 132 being connected to the first opening 114, the second end of the air duct 132 being connected to the second opening 116.

Specifically, the controller is electrically connected to both the power section 149 and the heat generating member 160. The controller can control the power portion 149 to operate according to the operation mode of the cooking appliance 100 to adjust the mating size of the cover plate 220 and the first opening 114, thereby adjusting the flow cross-sectional area of the first opening 114. The controller can also control the power part 149 to operate to drive the fan blades 154 to rotate or stop rotating according to the operation mode of the cooking appliance 100. The controller can also control the heating member 160 to operate or stop operating according to the operation mode of the cooking appliance 100. That is, the operation mode of the cooking appliance 100 has a correlation with the flow cross-sectional area of the first opening 114 and the operation state of the heat generating member 160.

The application reasonably sets the matching structure of the device body 110, the cover plate 220, the flow guiding device 130, the fan blade 154, the heating element 160, the power part 149 and the controller.

The cross-sectional area of the first opening 114 is reduced, so that when the fan blade 154 is driven to rotate by the power part 149, air in the cooking cavity 112 can be sucked into the air duct 132 through the first opening 114 under the action of the fan blade 154, heat transferred into the cooking cavity 112 through the first opening 114 in a heat radiation manner can be reduced or even avoided, heat at the heating part 160 can be taken away by rotation of the fan blade 154, and after passing through the air duct 132, the air flows to the cooking cavity 112 through the second opening 116, and heat is exchanged with food materials in a stable low heat flow density manner in a hot air circulation manner, so that the aim of cooking the food materials is fulfilled.

Or the cross-sectional area of the first opening 114 is increased, heat generated by the operation of the heating element 160 is transferred to the food material in a radiation mode through the first opening 114, meanwhile, the fan blades 154 rotate, so that large air quantity can be generated, and the large air quantity can send the heat of the heating element 160 into the cooking cavity 112 through the air duct 132 and the second opening 116, so that the food material is cooked in a high heat flow density heat exchange mode.

The arrangement enables the flow cross-sectional area of the first opening 114 and the working state of the heating element 160 to be adjusted according to the working mode of the cooking appliance 100, so that the heat exchanging mode of heat and food materials can be adjusted, and the flow path of hot air can be adjusted to meet the use requirements of hot air mode and air frying mode. This setting is favorable to promoting the performance of product, and then is favorable to the market competition of product.

It is understood that the overcurrent sectional area of the first opening 114 refers to an area of a shape surrounded by a contour line of the first opening 114 in a cross section of the first opening 114 in a direction perpendicular to a center line of the first opening 114.

Example 2:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, on the basis of embodiment 1, embodiment 2 provides a cooking appliance 100, and the cooking appliance 100 includes an appliance body 110, a cover 220, a deflector 130, fan blades 154, a heat generating member 160, a power part 149 and a controller.

Further, as shown in fig. 8, 9, 10 and 11, the cover 220 is switchable between a first state and a second state with respect to the appliance body 110.

The cooking appliance 100 has at least a hot air mode corresponding to the first state and a blank frying mode corresponding to the second state; wherein the cross-sectional area of the first opening 114 in the first state is smaller than the cross-sectional area of the first opening 114 in the second state.

In detail, the cooking appliance 100 has at least a hot air mode and a frying mode, and the cover 220 is switchable between a first state and a second state with respect to the appliance body 110. The operation mode of the cooking appliance 100 has a relationship with the flow cross-sectional area of the first opening 114. Specifically, the hot air mode corresponds to the first state, the control mode corresponds to the second state, and the cross-sectional area of the first opening 114 in the first state is smaller than the cross-sectional area of the first opening 114 in the second state.

Specifically, as shown in fig. 8 and 9, in the hot air mode, the controller controls the power part 149 to operate to drive the cover plate 220 to switch to the first state, in which the first opening 114 has a smaller cross-sectional area, so that heat generated by the operation of the heat generating member 160 can be blocked from being transferred into the cooking cavity 112 in the form of radiation. Meanwhile, the controller controls the power part 149 to work so as to drive the fan blades 154 to rotate, the fan blades 154 can rotate to generate large air quantity, most of heat generated by the work of the heating tube is taken away by the large air quantity, and after passing through the air duct 132, the heat flows to the cooking cavity 112 through the second opening 116 to form hot air circulation, so that a stable heat exchange mode with lower heat flux energy is provided for food materials, and the hot air requirement is met.

Specifically, as shown in fig. 10 and 11, in the air-frying mode, the controller controls the power unit 149 to operate to drive the cover plate 220 to switch to the second state, in which the cross-sectional area of the first opening 114 is larger, and heat is mainly transferred in a radiation heat exchange manner, and in this case, heat can be transferred to the food material in a radiation manner through the first opening 114. Meanwhile, the controller controls the power part 149 to work so as to drive the fan blades 154 to rotate, the fan blades 154 can rotate to generate large air quantity, and the large air quantity sends heat generated by the work of the heating piece 160 into the cooking cavity 112 through the air duct 132 and the second opening 116, so that high heat flow density heat exchange is formed, and the air frying requirement is met.

Example 3:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, on the basis of embodiment 2, embodiment 3 provides a cooking appliance 100, and the cooking appliance 100 includes an appliance body 110, a cover 220, a deflector 130, fan blades 154, a heat generating member 160, a power part 149 and a controller.

The cover 220 is switchable between a first state and a second state relative to the appliance body 110.

Further, as shown in fig. 6, 7 and 8, the cover plate 220 includes a third opening 222 and a shielding portion 224.

As shown in fig. 8 and 9, in the first state, the third opening 222 is disposed corresponding to the first portion of the first opening 114, and the shielding portion 224 is capable of shielding the second portion of the first opening 114.

As shown in fig. 10 and 11, in the second state, the third opening 222 is disposed corresponding to the third portion of the first opening 114, and the shielding portion 224 can avoid the first opening 114.

In detail, the cover plate 220 includes a third opening 222 and a shielding portion 224.

In the first state, the third opening 222 corresponds to the first portion of the first opening 114, and in the second state, the third opening 222 corresponds to the third portion of the first opening 114. That is, the third opening 222 communicates with the first opening 114, whether in the first state or the second state. In this way, when the power part 149 drives the fan blades 154 to rotate in the hot air mode and the frying mode, the air in the cooking cavity 112 can be sucked into the air duct 132 through the first opening 114 under the action of the fan blades 154.

In addition, in the first state, the shielding portion 224 can shield the second portion of the first opening 114, that is, act to reduce the cross-sectional area of the first opening 114, so as to block the heat generated by the operation of the heat generating member 160 from being transferred into the cooking cavity 112 in the form of radiation.

In the second state, the shielding portion 224 is capable of avoiding the first opening 114, that is, the first opening 114 is not shielded by the shielding portion 224, that is, the function of increasing the flow cross-sectional area of the first opening 114 is performed. In this way, heat transfer in a radiation heat exchange manner can be ensured.

Further, as shown in fig. 6 to 11, the first opening 114 includes a plurality of first overflow holes 122; the cover plate 220 further includes a plurality of second flow holes 226, and a portion of the cover plate 220 located between two adjacent second flow holes 226 forms a shielding portion 224.

In the first state, the shielding portion 224 is disposed corresponding to a part of the first overflow holes 122 among the plurality of first overflow holes 122.

In the second state, the first overflow aperture 122 is disposed corresponding to the second overflow aperture 226.

Wherein the first opening 114 includes a plurality of first overflow holes 122, the cover plate 220 includes a plurality of second overflow holes 226, and a portion of the cover plate 220 between two adjacent second overflow holes 226 forms a shielding portion 224. By reasonably arranging the matching structures of the plurality of first overflow holes 122, the plurality of second overflow holes 226 and the shielding part 224, in the first state, the shielding part 224 is correspondingly arranged with a part of the first overflow holes 122 in the plurality of first overflow holes 122, that is, the shielding part 224 can shield a part of the first overflow holes 122 in the plurality of first overflow holes 122 so as to play a role in reducing the overflow cross-sectional area of the first opening 114.

In the second state, the first flow-through hole 122 is provided corresponding to the second flow-through hole 226, and the blocking portion 224 is provided so as to avoid the first flow-through hole 122, thereby increasing the flow-through cross-sectional area of the first opening 114.

This arrangement provides efficient and reliable structural support for cooking utensil 100 in both the hot air mode and the air-frying mode.

It is understood that the cover plate 220 includes a third opening 222 and a plurality of second through-holes 226, the plurality of second through-holes 226 are located at a circumferential side of the third opening 222, and a portion of the cover plate 220 located between two adjacent second through-holes 226 forms a shielding portion 224.

Further, as shown in fig. 6 and 7, the cross-section of the third opening 222 is elliptical in shape.

By reasonably setting the structure of the third opening 222, the cross section of the third opening 222 is elliptical, and the setting can ensure that the cover plate 220 moves relative to the device body 110, so that when the switch between the first state and the second state is performed, the third opening 222 can correspond to a part of the first opening 114, and the condition that the fan blade 154 is affected by the movement of the cover plate 220 cannot occur. Has the advantages of simple processing technology and low production cost.

Example 4:

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, embodiment 4 provides a cooking apparatus 100 according to any of the above embodiments, where the cooking apparatus 100 includes an apparatus body 110, a cover 220, a deflector 130, fan blades 154, a heating member 160, a power portion 149 and a controller.

Further, as shown in fig. 6 to 11, one of the power portion 149 and the cover plate 220 is provided with a rack 230, and the other is provided with a gear 240, and the rack 230 is engaged with the gear 240.

In detail, the mating structures of the power unit 149 and the cover 220 are reasonably arranged such that one of the power unit 149 and the cover 220 is provided with the rack 230 and the other is provided with the gear 240. For example, the power portion 149 is provided with a rack 230, and the cover 220 is provided with a gear 240; for another example, the power portion 149 is provided with a gear 240 and the cover 220 is provided with a rack 230. The rack 230 is meshed with the gear 240, and the rotation of the gear 240 can drive the rack 230 to move, so that the purpose of moving the cover plate 220 relative to the appliance body 110 is achieved.

Specifically, as shown in fig. 6 and 7, the power portion 149 includes a first motor 150, and the first motor 150 is used to drive the cover 220 to move relative to the appliance body 110. The first motor 150 includes a gear 240.

Example 5:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, embodiment 5 provides a cooking apparatus 100 according to any of the above embodiments, where the cooking apparatus 100 includes an apparatus body 110, a cover 220, a deflector 130, fan blades 154, a heating member 160, a power portion 149 and a controller.

Further, one of the power portion 149 and the cover plate 220 is provided with a worm wheel, and the other is provided with a worm, with which the worm wheel is engaged.

In detail, the mating structures of the power portion 149 and the cover plate 220 are reasonably arranged such that one of the power portion 149 and the cover plate 220 is provided with a worm wheel and the other is provided with a worm. For example, the power portion 149 is provided with a worm wheel, and the cover 220 is provided with a worm; for another example, the power portion 149 is provided with a worm and the cover 220 is provided with a worm wheel. The worm wheel is meshed with the worm, and the worm wheel can drive the worm to move, so that the purpose of moving the cover plate 220 relative to the appliance body 110 is achieved.

Example 6:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, embodiment 6 provides a cooking apparatus 100 according to any of the above embodiments, where the cooking apparatus 100 includes an apparatus body 110, a cover 220, a deflector 130, fan blades 154, a heating member 160, a power portion 149 and a controller.

Further, the power portion 149 includes a shaft, the cover 220 is provided with a shaft hole, and the shaft is connected to the shaft hole in a penetrating manner.

In detail, the power portion 149 includes a rotating shaft, the cover 220 is provided with a shaft hole, the rotating shaft passes through the shaft hole and is connected with a hole wall of the shaft hole, and the rotating shaft rotates to drive the cover 220 to rotate relative to the rotating shaft, so as to achieve the purpose of moving the cover 220 relative to the appliance body 110.

Specifically, the cover plate 220 is provided with a third opening 222, and the cross-section of the third opening 222 is elliptical in shape.

Example 7:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, embodiment 7 provides a cooking apparatus 100 according to any of the above embodiments, where the cooking apparatus 100 includes an apparatus body 110, a cover 220, a deflector 130, fan blades 154, a heating member 160, a power portion 149 and a controller.

Further, as shown in fig. 3 and 4, the appliance body 110 has a top wall 118 and a side wall 120, the side wall 120 is connected to one side of the top wall 118, one of the top wall 118 and the side wall 120 is provided with a first opening 114, and at least one of the top wall 118 and the side wall 120 is provided with a second opening 116.

In detail, the appliance body 110 includes a top wall 118 and a side wall 120, the side wall 120 being connected to the top wall 118. The positions of the first opening 114 and the second opening 116 may be set according to specific practical use requirements.

Specifically, the top wall 118 of the appliance body 110 is provided with a first opening 114. Alternatively, the sidewall 120 of the appliance body 110 is provided with the first opening 114.

Specifically, the top wall 118 of the appliance body 110 is provided with a second opening 116. Alternatively, the sidewall 120 of the appliance body 110 is provided with the second opening 116. Alternatively, both the top wall 118 and the side wall 120 of the appliance body 110 are provided with the second opening 116.

When the top wall 118 and the side wall 120 of the appliance body 110 are provided with the second openings 116, that is, the number of the second openings 116 is plural, a part of the second openings 116 of the plurality of second openings 116 is provided in the top wall 118 of the appliance body 110, and another part of the second openings 116 of the plurality of second openings 116 is provided in the side wall 120 of the appliance body 110. This setting has increased the cooperation area of second opening 116 and culinary art chamber 112, has increased the cooperation angle of second opening 116 and culinary art chamber 112, is favorable to promoting the temperature equilibrium and the uniformity of the interior different positions department of culinary art chamber 112, can guarantee the equilibrium that the food material was heated, is favorable to promoting the food material taste.

Further, the first opening 114 is provided in the top wall 118, and the second opening 116 is provided in the side wall 120.

Therein, the arrangement positions of the first opening 114 and the second opening 116 are specifically defined, wherein the first opening 114 is provided in the top wall 118, and the second opening 116 is provided in the side wall 120.

Specifically, the sidewall 120 of the appliance body 110 is provided with the second opening 116, and the hot air flows from the second opening 116 to the cooking cavity 112, so that the hot air forms a horizontal hot air circulation, which is beneficial to the equalization of the temperature in the cooking cavity 112.

Specifically, the top wall 118 of the apparatus body 110 is provided with the first opening 114, which is beneficial to radiation enhancement heat exchange and can ensure the air frying effect.

Example 8:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, embodiment 8 provides a cooking apparatus 100 according to any of the above embodiments, where the cooking apparatus 100 includes an apparatus body 110, a cover 220, a deflector 130, fan blades 154, a heating member 160, a power portion 149 and a controller.

Further, the number of the second openings 116 is plural.

The air duct 132 includes: the first air duct 132 section, the first air duct 132 section having a third end and a fourth end, the third end being connected to the first opening 114.

The second air duct 132 segments have a fifth end and a sixth end, the fifth end of each second air duct 132 segment being connected to the fourth end, the sixth end of each second air duct 132 segment being connected to one of the second openings 116.

In detail, the air duct 132 includes a first air duct 132 segment and a plurality of second air duct 132 segments. And reasonably defines the mating structure of the first opening 114, the first air duct 132 segment, the plurality of second air duct 132 segments, and the second opening 116, specifically, the first air duct 132 segment has a third end and a fourth end, the second air duct 132 segment has a fifth end and a sixth end, the fifth end of each second air duct 132 segment is connected to the fourth end of the first air duct 132 segment, and the sixth end of each second air duct 132 segment is connected to one of the second openings 116. This arrangement allows the air flow from the first opening 114 to the air duct 132 to be divided into multiple strands by the multiple second air duct 132 sections, and multiple strands of hot air flow from different directions and different positions to the cooking cavity 112 simultaneously, so as to form a multi-directional hot air circulation, thereby facilitating the equalization of the temperature in the cooking cavity 112 and providing an effective and reliable structural support for the equalization and consistency of the heating of the food.

Example 9:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, embodiment 9 provides a cooking apparatus 100 according to any of the above embodiments, where the cooking apparatus 100 includes an apparatus body 110, a cover 220, a deflector 130, fan blades 154, a heating member 160, a power portion 149 and a controller.

Further, as shown in fig. 2, 12 and 13, the deflector 130 includes a shroud 138 and a draft tube 142.

The cover 138 is connected to the outer surface of the device body 110, and covers the first opening 114, the cover 138 is provided with a fourth opening 140, and the cover 220 is located between the cover 138 and the device body 110.

The flow guide 142 is located at one side of the housing 138, and the flow guide 142 is connected between the fourth opening 140 and the second opening 116.

The heat generating member 160 is located between the cover 138 and the appliance body 110, and the heat generating member 160 is located at a peripheral side of the fourth opening 140.

Wherein, the fan blade 154 is disposed on the flow guiding tube 142.

In detail, the deflector 130 includes a housing 138 and a flow guide 142, the housing 138 being connected to the outer surface of the appliance body 110, i.e., an area for accommodating the heat generating member 160 is defined between the inner surface of the housing 138 and the outer surface of the appliance body 110.

It will be appreciated that the heat generated by the operation of the heat-generating element 160 is effective to heat the air in the region between the housing 138 and the appliance body 110, to provide effective and reliable structural support for heating the food in the cooking cavity 112 in the heated air circulation mode in the heated air mode, and to provide effective and reliable structural support for transferring heat to the food in the cooking cavity 112 in the air-frying mode in a radiant heat exchange manner.

In addition, the heating element 160 is located at the peripheral side of the fourth opening 140, and when the fan blade 154 rotates, it can ensure that the air and the heat generated by the operation of the heating element 160 are uniformly mixed.

In addition, the cover plate 220 is located between the cover body 138 and the device body 110, and the cover body 138 and the device body 110 have the function of protecting the cover plate 220, so as to prevent external force from directly acting on the cover plate 220, thereby being beneficial to prolonging the service life of the product and providing structural support for the cover plate 220 to move relative to the device body 110.

Specifically, the power unit 149 includes a second motor 152, the second motor 152 is disposed on the flow guiding tube 142, and the second motor 152 is connected to the fan blades 154.

Further, as shown in fig. 12 and 13, the draft tube 142 includes a first tube wall 144 and a second tube wall 146.

The first tube wall 144 is connected to the housing 138, and a portion of the first tube wall 144 corresponding to the housing 138 is recessed to form a volute 148, and the fan blades 154 are located at the volute 148.

The second tube wall 146 is connected to a side of the first tube wall 144 facing the shroud 138, and the second tube wall 146 is located on a side of the volute 148.

Wherein a first portion of the air path 132 is formed between the shroud 138 and the volute 148 and a second portion of the air path 132 is formed between the first tube wall 144 and the second tube wall 146.

The flow guide tube 142 includes a first tube wall 144 and a second tube wall 146, and the housing 138, the first tube wall 144, and the second tube wall 146 cooperate to form a first portion of the air duct 132 between the housing 138 and the volute 148, and a second portion of the air duct 132 between the first tube wall 144 and the second tube wall 146.

Specifically, a portion of the first tube wall 144 corresponding to the shroud 138 is recessed to form the volute 148, and the fan blades 154 are positioned at the volute 148, and after flowing into the air duct 132, the air flows along a continuous flow path formed by the volute 148 and the shroud 138, and then flows to a second portion of the air duct 132. The continuous flow passage formed between the volute 148 and the wall surface of the cover body 138 has the diffusion effect, the air flowing in from the first opening 114 can flow through the continuous flow passage with larger area, the deflection of the air is reduced, the flow loss of the air is reduced, more energy is converted into dynamic pressure, the air quantity is improved, the conditions of large flow loss of the air, poor aerodynamic performance and reduction of the air outlet quantity caused by overlarge speed are avoided; further, the continuous flow channel has the function of collecting flow, reduces the frequency of phenomena such as air flow separation, vortex and the like, and is beneficial to reducing the operation noise of products.

Further, the cooking appliance 100 further includes a seal located at the junction of the enclosure 138 and the appliance body 110.

Wherein, cooking utensil 100 still includes the sealing member, and the sealing member is located the junction of the lid 138 and the utensil body 110, utilizes the sealing member to seal the junction of the lid 138 and the utensil body 110 to guarantee the gas tightness between the lid 138 and the utensil body 110, avoid the air current to leak by the junction of the lid 138 and the utensil body 110, can guarantee the amount of wind, be favorable to reducing the running noise of product.

In particular, the seal comprises a rubber pad and/or a silicone pad.

Further, as shown in fig. 12 and 13, the heating element 160 includes a heating tube, the heating tube is annular, and the fourth opening 140 is located in a region surrounded by the heating tube; the cover 138 is provided with a connector 180, and the connector 180 is used for fixing the heating tube.

The heating element 160 includes a heating tube, and the heating tube is annular, and the fourth opening 140 is located in an area surrounded by the heating tube, so as to ensure that air flowing to the fourth opening 140 exchanges heat with the heating tube effectively, and when the fan works, the air and heat generated by the working of the heating element 160 can be uniformly mixed.

The cover 138 is provided with a connector 180, and the heating tube is fixed by the connector 180. The heating tube and the cover 138 are assembled into a whole, so that the heating tube cannot shift relative to the cover 138, so that the matching size of the heating tube and the fourth opening 140 can be ensured, and stable and reliable structural support is provided for the cooking effectiveness and feasibility of the cooking utensil 100.

Further, the connection member 180 includes: the first clamping part 182 is arranged on the cover body 138, a part of the first clamping part 182 is recessed towards the direction of the cover body 138 to form a first clamping groove, and a first part of the heating element 160 is clamped in the first clamping groove; the second clamping portion 184 is detachably connected to the housing 138, and a portion of the second clamping portion 184 is recessed toward the rotation axis direction of the fan to form a second clamping groove, and a second portion of the heating element 160 is clamped in the second clamping groove.

The connecting piece 180 includes a first clamping portion 182 and a second clamping portion 184. The first clamping portion 182 and the second clamping portion 184 are both used for fixing the heating element 160.

Specifically, a portion of the first clamping portion 182 is recessed toward the direction of the housing 138 to form a first clamping groove, a portion of the second clamping portion 184 is recessed toward the rotation axis direction of the fan to form a second clamping groove, a first portion of the heating element 160 is clamped in the first clamping groove, and a second portion of the heating element 160 is clamped in the second clamping groove. That is, the heating element 160 is engaged with the first slot, and the heating element 160 is engaged with the second slot. Because the recess direction of the first clamping groove is different from the recess direction of the second clamping groove, the first clamping portion 182 and the second clamping portion 184 can be effectively assembled with the heating element 160 from multiple directions and multiple angles, so that the displacement of the heating element 160 relative to the cover 138 is limited, and the situation that the heating element 160 slides down from the cover 138 is avoided.

Specifically, the cover 138 and the first clamping portion 182 are integrally formed, and the structure omits the assembly process of the cover 138 and the first clamping portion 182, so that the assembly and subsequent disassembly processes of the cover 138 and the first clamping portion 182 are simplified, the assembly and disassembly efficiency is improved, and the production and maintenance cost can be reduced. In addition, the cover 138 and the first clamping portion 182 are integrally formed to ensure the dimensional accuracy of the product.

Specifically, the cover 138 is detachably connected to the second clamping portion 184, and the cover 138 is connected to the second clamping portion 184 in any one of or a combination of the following manners: the clamping connection, the screw connection, the magnetic attraction and the fastening connection through a fastener (such as a screw, a bolt or a rivet).

The cover 138 is detachably connected with the second clamping portion 184, that is, the disassembly and assembly of the second clamping portion 184 and the mounting position of the second clamping portion 184 relative to the cover 138 can be determined according to practical situations, so that the use requirements of heating elements 160 of different models can be met, the adaptability of the product is high, and the use performance of the product is improved.

Example 10:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, embodiment 10 provides a cooking apparatus 100 according to any of the above embodiments, where the cooking apparatus 100 includes an apparatus body 110, a cover 220, a deflector 130, fan blades 154, a heating member 160, a power portion 149 and a controller.

Further, as shown in fig. 2, the cooking appliance 100 further includes a housing 190 and a microwave generator 200.

The casing 190 is connected with the device body 110, a containing cavity is surrounded between the casing 190 and the device body 110, the flow guiding device 130 is positioned in the containing cavity, and the controller is arranged in the containing cavity.

The microwave generator 200 is provided in the accommodating chamber and communicates with the cooking chamber 112, and the microwave generator 200 is electrically connected to the controller.

In detail, the cooking appliance 100 further includes a housing 190 and a microwave generator 200. Wherein, shell 190 is connected with utensil body 110, surrounds between shell 190 and the utensil body 110 and holds the chamber, holds the chamber and has the effect of holding guiding device 130 and location controller to play the effect of keeping apart guiding device 130 and controller, avoid steam, the filth etc. in the environment to enter into guiding device 130 and controller department, guarantee the cleanliness of guiding device 130 and controller department, be favorable to prolonging the life of product.

In addition, the microwave generator 200 is provided in the accommodating chamber, and the microwave generator 200 communicates with the cooking chamber 112. Since the microwave generator 200 is electrically connected to the controller, the controller can control the operation of the microwave generator 200. The microwave generator 200 operates to deliver microwaves into the cooking cavity 112, and heat the food in the cooking cavity 112 by using the microwaves, thereby achieving the purpose of cooking the food.

Example 11:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 12 and 13, embodiment 11 provides a cooking apparatus 100 according to any of the above embodiments, where the cooking apparatus 100 includes an apparatus body 110, a cover 220, a deflector 130, fan blades 154, a heating member 160, a power portion 149 and a controller.

Further, as shown in fig. 1, the cooking appliance 100 further includes a door 210, the door 210 being connected to the appliance body 110, the door 210 being used to open or close the cooking cavity 112; the door 210 is provided with a heat insulation part and a control panel, and the control panel controller is electrically connected.

In detail, the cooking appliance 100 further includes a door 210, the door 210 is connected to the appliance body 110, and the door 210 is rotatable with respect to the appliance body 110. Specifically, the door 210 has an effect of opening or closing the cooking cavity 112.

Since the door 210 is provided with the heat insulating part, the heat insulating part has a function of blocking heat transfer to block heat transfer in the cooking cavity 112 of the cooking appliance 100 to the door 210. The temperature of the outer surface of the door 210 is reduced, so that the situation of scalding the user can be effectively avoided, and the safety and reliability of the product use are improved.

In addition, the door 210 is provided with a control panel, and the control panel is electrically connected with the controller, so that a user can achieve the purpose of cooking food materials by triggering the control panel.

Further, as shown in fig. 13, the air chute 132 includes a third air chute section 156 and a fourth air chute section 158.

The third air duct section 156 is connected to the first opening 114, and the third air duct section 156 is disposed corresponding to the top wall 118 of the appliance body 110.

The fourth air duct section 158 is disposed corresponding to the sidewall 120 of the appliance body 110, and the fourth air duct section 158 connects the third air duct section 156 and the second opening 116.

Wherein the air chute 132 includes a third air chute section 156 and a fourth air chute section 158. The third air duct section 156 is disposed corresponding to the top wall 118 of the device body 110, the fourth air duct section 158 is disposed corresponding to the side wall 120 of the device body 110, one end of the fourth air duct section 158 is connected to the third air duct section 156, and the other end of the fourth air duct section 158 is connected to the second opening 116.

Specifically, the side wall 120 of the appliance body 110 is perpendicular to the plane in which the top wall 118 of the appliance body 110 lies, i.e., the third air duct section 156 and the fourth air duct section 158 enclose a shape that is an "L" shaped structure. That is, the configuration of the third air duct section 156 and the fourth air duct section 158, which are adapted to the configuration of the side wall 120 and the top wall 118 of the cooking apparatus body 110, can reduce the occupancy rate of the air guide 130 to the internal space of the cooking apparatus 100 while ensuring the effective flow path of the air flow, and thus is beneficial to the realization of the miniaturization of the cooking apparatus 100.

Of course, in the longitudinal section of the tool body 110, the included angle between the outer contour line of the top wall 118 and the outer contour line of the side wall 120 may be an acute angle or an obtuse angle. And the structural shape of the third air duct section 156 and the fourth air duct section 158 is adapted to the structural shape of the side wall 120 and the top wall 118 of the appliance body 110. Wherein the longitudinal section is parallel to the direction of gravity.

Further, the mouth wall of the fourth opening 140 of the housing 138 is located between the axis of rotation of the fan blade 154 and the outer edge of the fan blade 154. That is, the positional relationship of the rotation axis of the fan blade 154, the outer edge of the fan blade 154, and the fourth opening 140 is defined. This arrangement prevents fan blades 154 from entering enclosure 138 during operation in a higher speed operating range, such that the thrown out air can be blown into cooking cavity 112 through air duct 132 of deflector 130.

Specifically, the fan blade 154 is a centrifugal fan blade 154.

Further, the number of motors and blades 154 is plural, and each motor is connected to one blade 154.

The number of motors is plural, and the number of fan blades 154 is plural, and each motor is connected with one fan blade 154. In this way, the plurality of blades 154 can be selectively controlled to operate simultaneously or a portion of the blades 154 can be controlled to operate according to the operation mode of the cooking apparatus 100. The setting can satisfy the use requirement of product diversification, is favorable to promoting the performance and the market competition of product.

Specifically, the heat insulating portion is heat insulating glass.

Example 12:

the cooking appliance 100 of the present application can satisfy both the air-frying mode requirement and the hot air mode requirement by the re-distribution of heat.

In the air-frying mode, heat is transferred primarily in radiant heat exchange, at which time heat may be transferred in radiant form to the food material through the first opening 114 of the top wall 118 of the device body. Meanwhile, the second motor 152 drives the fan blades 154 to rotate, so that a large air volume can be generated, and the large air volume sends the heat of the heating element 160 into the cooking cavity 112 through the second opening 116, so that high heat flux heat exchange is formed.

In the hot air mode, the first motor 150 drives the cover plate 220 to move, and the cover plate 220 covers a part of the first opening 114, so that heat can be blocked from exchanging heat to the food material in a radiation mode. Meanwhile, the second motor 152 drives the fan blades 154 to rotate, the second motor 152 can generate large air quantity, and the large air quantity sends heat of the heating element 160 into the cooking cavity 112 through the second opening 116, so that a hot air function is realized.

As shown in fig. 1, the cooking appliance 100 includes an appliance body 110 and a door 210, and a cooking cavity 112 is formed in the appliance body 110.

As shown in fig. 2, 3 and 4, the cooking appliance 100 further includes a housing 190, a flow guide 130, a first motor 150, a second motor 152, fan blades 154, a heat generating member 160, a controller, and a microwave generator 200.

The door 210 includes a heat insulating part and a control panel. Specifically, the heat insulating portion is heat insulating glass.

As shown in fig. 12 and 13, the flow guiding device 130 includes a shroud 138 and a flow guiding tube 142, the flow guiding tube 142 includes a first tube wall 144 and a second tube wall 146, and the first tube wall 144 is formed with a volute 148. A first portion of the air duct 132 is formed between the shroud 138 and the volute 148, and a second portion of the air duct 132 is formed between the first tube wall 144 and the second tube wall 146.

Specifically, the heat generating member 160 includes a heat generating tube. The heating tube is mounted inside the housing 138 by a connector 180.

The housing 138 is provided with a fourth opening 140. The power section 149 includes a second motor 152. The fan blade 154 is driven to rotate by the second motor 152, centrifugal force is generated at the edge of the fan blade 154 to throw out air, negative pressure is formed at the center of the fan blade 154, external air enters the center of the fan blade 154 through the fourth opening 140 on the cover 138 and is thrown out along with the fan blade 154, and finally, the external air is blown out from the second opening 116 through the air duct 132. When the heat pipe is in operation, air entering the fan blades 154 passes through the heat pipe to form hot air.

The first tube wall 144 is provided with a volute 148 that facilitates increasing wind speed, and the upper surface of the first tube wall 144 is sealed against the shroud 138 to form a first portion of the air duct 132, and a second portion of the air duct 132 is formed between the first tube wall 144 and the second tube wall 146, and the first portion of the air duct 132 is connected to the second portion of the air duct 132. This creates a tunnel 132 in the shape of a volute 148 that is accessed by the third opening 222 of the enclosure 138 and that terminates in the tunnel 132.

The air duct 132 has an outlet at its end, and when the air guide 130 is mounted on the appliance body 110, the cover 138 seals with the top wall 118 of the appliance body 110, the cover 138 forms a closed space with the top wall 118 of the appliance body 110, and air in the cooking cavity 112 can enter the cover 138 through the first opening 114 in the top wall 118 of the appliance body 110. And a second opening 116 is arranged on the side wall 120 of the appliance body 110, the second opening 116 is communicated with the outlet of the air duct 132, so that the air heated by the heating tube flows back into the cooking cavity 112 through the air duct 132 to form a hot air circulation.

The cover 220 is located between the enclosure 138 and the device body, the cover 220 being movable relative to the appliance body 110. The cover 220 is provided with a rack 230, and the power section 149 includes a first motor 150, the first motor 150 having a gear 240, the gear 240 being meshed with the rack 230. The first motor 150 is rotated to drive the rack 230 to slide back and forth, and the cover plate 220 is moved.

When the cover plate 220 is in the first state, the second flow aperture 226 of the cover plate 220 is offset from the first flow aperture 122 of the top wall 118 of the appliance body 110. That is, the shielding portion 224 of the cover plate 220 (a portion of the cover plate 220 located between two adjacent second through-flow holes 226 forms the shielding portion 224) is disposed corresponding to a portion of the first through-flow holes 122 of the plurality of first through-flow holes 122.

When the cover plate 220 is in the second state, the second flow aperture 226 of the cover plate 220 coincides with the first flow aperture 122 of the top wall 118 of the appliance body 110.

The cover 220 is further provided with a third opening 222, and in the first state and the second state, the third opening 222 is disposed corresponding to a portion of the first opening 114. The corresponding first overflow holes 122 are guaranteed to be the same in number when the cover plate 220 moves back and forth, and the fan blade 154 is not affected by the movement of the cover plate 220.

In the present invention, the term "plurality" means two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooking appliance, comprising:

the cooking device comprises a device body, a first opening and a second opening, wherein the device body is provided with a cooking cavity, and the first opening and the second opening are communicated with the cooking cavity;

the cover plate is movably connected with the appliance body and can move relative to the appliance body to adjust the flow cross-sectional area of the first opening;

The air guide device is arranged on one side of the appliance body, and is provided with an air channel, a first end of the air channel is connected with the first opening, and a second end of the air channel is connected with the second opening;

the fan blade is arranged at the first end of the flow guiding device and is communicated with the air duct;

the heating piece is arranged at the first end of the flow guiding device and is communicated with the air duct;

the power part is connected with the fan blade and the cover plate and is used for driving the cover plate and the fan blade to work;

the controller is electrically connected with the heating element and the power part and is used for controlling the heating element and the power part to work according to the working mode of the cooking utensil;

the cover plate is switchable relative to the appliance body between a first state and a second state;

the cooking utensil at least has a hot air mode and an empty frying mode, wherein the hot air mode corresponds to the first state, and the empty frying mode corresponds to the second state;

wherein the first opening has a smaller cross-sectional area than the first opening in the second state.

2. The cooking appliance of claim 1, wherein the cooking appliance further comprises a handle,

The cover plate comprises a third opening and a shielding part;

in the first state, the third opening is arranged corresponding to the first part of the first opening, and the shielding part can shield the second part of the first opening;

in the second state, the third opening is arranged corresponding to the third part of the first opening, and the shielding part can avoid the first opening.

3. The cooking appliance of claim 2, wherein the cooking appliance further comprises a handle,

the first opening includes a plurality of first flow-through apertures;

the cover plate further comprises a plurality of second overflow holes, and the part of the cover plate positioned between two adjacent second overflow holes forms the shielding part;

in the first state, the shielding part is arranged corresponding to a part of the first overflow holes;

in the second state, the first overflow hole and the second overflow hole are correspondingly arranged.

4. The cooking appliance of claim 2, wherein the cooking appliance further comprises a handle,

the cross section of the third opening is elliptical in shape.

5. The cooking appliance according to any one of claims 1 to 4, wherein,

one of the power part and the cover plate is provided with a rack, the other is provided with a gear, and the rack is meshed with the gear.

6. The cooking appliance according to any one of claims 1 to 4, wherein,

one of the power part and the cover plate is provided with a worm wheel, the other one is provided with a worm, and the worm wheel is meshed with the worm.

7. The cooking appliance according to any one of claims 1 to 4, wherein,

the power part comprises a rotating shaft, the cover plate is provided with a shaft hole, and the rotating shaft is connected to the shaft hole in a penetrating way.

8. The cooking appliance according to any one of claims 1 to 4, wherein,

the appliance body has a top wall and a side wall, the side wall being connected to one side of the top wall, one of the top wall and the side wall being provided with the first opening, at least one of the top wall and the side wall being provided with the second opening.

9. The cooking appliance of claim 8, wherein the cooking appliance further comprises a handle,

the first opening is arranged on the top wall, and the second opening is arranged on the side wall.

10. The cooking appliance of any one of claims 1 to 4, wherein the number of second openings is a plurality, the air duct comprising:

a first duct section having a third end and a fourth end, the third end being connected to the first opening;

The second air duct sections are provided with fifth ends and sixth ends, the fifth ends of the second air duct sections are connected with the fourth ends, and the sixth ends of the second air duct sections are connected with one second opening.

11. The cooking appliance of any one of claims 1 to 4, wherein the deflector comprises:

the cover body is connected with the outer surface of the appliance body and is covered at the first opening, the cover body is provided with a fourth opening, and the cover plate is positioned between the cover body and the appliance body;

the honeycomb duct is positioned at one side of the cover body and is connected between the fourth opening and the second opening;

the heating element is positioned between the cover body and the appliance body, and the heating element is positioned on the periphery side of the fourth opening;

wherein, the flabellum is located the honeycomb duct.

12. The cooking appliance of claim 11, wherein the draft tube comprises:

the first pipe wall is connected with the cover body, a part of the first pipe wall corresponding to the cover body is sunken to form a volute, and the fan blades are positioned at the volute;

the second pipe wall is connected to one side of the first pipe wall facing the cover body, and the second pipe wall is positioned on one side of the volute;

And a first part of the air duct is formed between the cover body and the volute, and a second part of the air duct is formed between the first pipe wall and the second pipe wall.

13. The cooking appliance of claim 11, further comprising:

and the sealing piece is positioned at the joint of the cover body and the appliance body.

14. The cooking appliance of claim 11, wherein the cooking appliance further comprises a handle,

the heating piece comprises a heating tube, the heating tube is annular, and the fourth opening is positioned in an area surrounded by the heating tube;

the cover body is provided with a connecting piece, and the connecting piece is used for fixing the heating tube.

15. The cooking appliance of any one of claims 1 to 4, further comprising:

the shell is connected with the appliance body, a containing cavity is surrounded between the shell and the appliance body, the flow guiding device is positioned in the containing cavity, and the controller is arranged in the containing cavity;

the microwave generator is arranged in the accommodating cavity and communicated with the cooking cavity, and the microwave generator is electrically connected with the controller.

16. The cooking appliance of any one of claims 1 to 4, further comprising:

The door body is connected with the appliance body and is used for opening or closing the cooking cavity;

the door body is provided with a heat insulation part and a control panel, and the control panel is electrically connected with the controller.