CN114794852A

CN114794852A - Heating cabinet and cooking equipment

Info

Publication number: CN114794852A
Application number: CN202210649290.7A
Authority: CN
Inventors: 任富佳; 李法民; 阮华平; 宋小明; 王畅; 韩源; 杨少令
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-07-29

Abstract

The invention relates to the technical field of kitchen appliances, in particular to a heating box and cooking equipment. The invention provides a heating box, which comprises a box body, a microwave heating system, an electric heating system and a steam generator, wherein the box body is provided with a heating box body; the box body at least comprises a working cavity, and the electric heating system of the microwave heating system and the steam generator are arranged outside the working cavity; the microwave heating system comprises an antenna, and the antenna emits microwaves into the working cavity; the electric heating system comprises a first electric heating pipe; and the air outlet of the steam generator is communicated with the working cavity. The microwave oven provided by the invention at least comprises the heating box. According to the processing box provided by the invention, the food is comprehensively heated by utilizing the microwave heating system and the electric heating system, and the processing box is assisted by the steam provided by the steam generator, so that the food is uniformly heated.

Description

Heating cabinet and cooking equipment

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a heating box and cooking equipment.

Background

A micro-steaming and baking all-in-one machine is a kitchen appliance integrating functions of a microwave oven, a steam box, an oven and the like, and has the advantages of saving space, improving the household food quality, saving energy, protecting environment and the like.

In the prior art, the micro steaming and baking integrated machine comprises a box body and a heating structure such as a microwave emitter. Wherein, a cavity for heating food is formed in the box body, and the microwave emitter is arranged at the bottom of the box body and is used for heating the food in the cavity by emitting microwaves into the cavity.

However, because the existing micro-steaming and baking all-in-one machine only heats the food in the cavity in a microwave emitting mode through a microwave emitter, the problem of low food heating efficiency exists, and the use experience of a user is seriously influenced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the heating efficiency of the existing micro-steaming and baking integrated machine in a microwave mode is lower.

(II) technical scheme

In order to solve the technical problem, the invention provides a heating box, which comprises a box body, a microwave heating system, an electric heating system and a steam generator, wherein the microwave heating system is arranged on the box body;

the box body at least comprises a working cavity, and the microwave heating system, the electric heating system and the steam generator are arranged outside the working cavity;

the microwave heating system is used for emitting microwaves into the working cavity;

the electric heating system is used for transferring heat into the working cavity;

and the air outlet of the steam generator is communicated with the working cavity.

As an optional implementation manner of the present invention, the box body is provided with a first accommodating groove and a second accommodating groove, the microwave heating system is disposed in the first accommodating groove, the electric heating system is disposed in the second accommodating groove, a first cover plate is disposed at an opening of the first accommodating groove, the first cover plate is configured to open or close an opening of the first accommodating groove, a second cover plate is disposed at an opening of the second accommodating groove, and the second cover plate is configured to open or close an opening of the second accommodating groove.

As an optional embodiment of the present invention, the first receiving groove and the second receiving groove are both of a bell mouth-shaped structure and face the working chamber;

the inner diameter of the first accommodating groove is gradually increased from the bottom of the first accommodating groove to the opening of the first accommodating groove; from the bottom of the second accommodating groove to the opening of the second accommodating groove, the inner diameter of the second accommodating groove is gradually increased;

a microwave reflecting layer is arranged in the first accommodating groove, and a heat insulating layer is arranged in the second accommodating groove.

As an optional embodiment of the present invention, the electric heating system includes first electric heating pipes, and the first electric heating pipes correspond to the second receiving grooves one to one.

As an optional embodiment of the present invention, at least one second receiving groove is disposed at a bottom of the tank body, and the second cover plate disposed at the bottom of the tank body is used for collecting condensed water.

As an alternative embodiment of the present invention, the microwave heating system includes a motor, an antenna and a blade; the blade is provided with the microwave reflecting layer, the blade is arranged between the antenna and the working cavity, the motor drives the blade to rotate, and the antenna is used for transmitting microwaves into the working cavity.

As an optional embodiment of the present invention, the blade is provided with a plurality of grooves along the circumferential direction, and the depth of the plurality of grooves gradually increases/decreases along the circumferential direction of the blade.

As an optional embodiment of the present invention, the number of the grooves is three, and the grooves are respectively a first groove, a second groove and a third groove;

on the extension surface of the blade, the depth of the first groove is smaller than that of the second groove and is smaller than that of the third groove;

in the circumferential direction of the blade, the arc length of the third slot is smaller than the arc length of the first slot and smaller than the arc length of the second slot.

As an alternative embodiment of the present invention, a retainer ring is disposed below the vane, and the retainer ring is connected to the vane.

As an optional embodiment of the present invention, one end of the antenna is connected to the motor, and the other end of the antenna passes through the retainer ring and is connected to the blade; the motor drives the blades to rotate through the antenna.

As an optional embodiment of the present invention, the retainer ring includes a limiting portion, a first supporting portion, and a second supporting portion;

the box body is provided with a through hole matched with the limiting part, and the limiting part penetrates through the through hole; in the radial direction, the first supporting part protrudes out of the limiting part, the outer diameter of the first supporting part is larger than the diameter of the through hole, and the first supporting part is abutted against the box body;

the second supporting part is arranged at one end of the limiting part and is abutted to the blade.

As an optional embodiment of the present invention, the second supporting portion and the limiting portion are coaxial cylindrical structures;

the diameter of the second supporting part is smaller than that of the limiting part, and the second supporting part is connected with the limiting part through an arc-shaped conical surface.

As an optional implementation manner of the present invention, one end of the second supporting portion, which is far away from the limiting portion, is provided with a bell mouth with a large outer part and a small inner part.

As an optional embodiment of the present invention, the electric heating system includes a first electric heating tube, and the first electric heating tube and the microwave heating system are disposed correspondingly;

the first groove of accomodating with the groove at least part coincidence is accomodate to the second, first electric heating pipe with microwave heating system all locates in the coincidence portion, just first electric heating pipe surround in microwave heating system's week side.

A cooking device at least comprises the heating box.

The invention has the beneficial effects that:

in one aspect, the invention relates to a heating cabinet having a microwave heating system and an electrical heating system therein; the microwave heating system heats food from inside to outside, the microwave heating system emits microwaves into the working cavity through the antenna, the microwaves pass through the food in a high-frequency oscillation mode, polar molecules in the food are attracted to generate oscillation along with the high-frequency oscillation, and then the molecules collide with each other to generate friction heat; the electric heating system heats food from outside to inside, the first electric heating pipe converts electric energy into heat energy, and the generated heat energy is transferred to the heated food in the working cavity by air; the microwave heating system and the electric heating system are combined with each other, so that the heating intensity inside and outside the food is ensured, and the heating uniformity is improved.

On the other hand, steam generator to export vapor in the working chamber, vapor is as the heat carrier, and heat conduction efficiency effectively improves because the air electric heating system's work efficiency, and because vapor's heat conduction is respond well, works as the working chamber inside is filled with behind the vapor, the inside even high temperature environment of a whole temperature that can form of working chamber, and under the condition of anhydrous vapor, can appear being close to electric heating system's the obviously higher condition of regional air temperature under vapor's the auxiliary action, electric heating system can carry out more even all-round heating to the food top layer, has further strengthened the homogeneity to food heating.

In addition, the microwave heating system heats the water vapor in the working cavity at the same time, and the food is heated from outside to inside under the operation of the water vapor, so that the uniformity of heating the food is further enhanced.

In conclusion, the heating box and the cooking device provided by the invention have remarkable advantages in the aspect of uniformly heating food.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of a microwave oven according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating an internal structure of a microwave oven according to an embodiment of the present invention;

fig. 3 is a schematic sectional view illustrating a microwave oven according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic cross-sectional view of a retainer ring according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a blade according to an embodiment of the present invention.

Icon:

1-a microwave heating system; 11-an antenna; 12-a motor; 13-a blade; 131-a first groove; 132-a second slot; 133-a third tank; 14-a retainer ring; 141-a limiting part; 142-a first support; 143-a second support; 15-mounting a plate;

2-an electric heating system; 21-a first electric heating tube;

3-a steam generator;

41-a first receiving groove; 42-first cover plate.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and detailed description, and the embodiments and features of the embodiments of the present application may be combined with each other without conflict. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, an embodiment of the present invention provides a heating cabinet, including a cabinet, a microwave heating system 1, an electric heating system 2, and a steam generator 3;

the box body at least comprises a working cavity, the working cavity is used for storing food to be heated, and the microwave heating system 1, the electric heating system 2 and the steam generator 3 are arranged on the outer side of the working cavity;

the microwave heating system 1 is used for emitting microwaves into the working cavity;

the electric heating system 2 comprises a first electric heating tube 21;

and the air outlet of the steam generator 3 is communicated with the working cavity.

In one aspect, the invention relates to a heating box which is internally provided with a microwave heating system 1 and an electric heating system 2; the microwave heating system 1 heats food from inside to outside, the microwave heating system 1 emits microwaves into the working cavity, the microwaves pass through the food in a high-frequency oscillation mode, polar molecules in the food are attracted to generate oscillation along with the high-frequency oscillation, and then the molecules collide with each other to generate friction heat; the electric heating system 2 heats food from outside to inside, the first electric heating pipe 21 converts electric energy into heat energy, and the generated heat energy is transferred to the heated food in the working cavity by air; the microwave heating system 1 and the electric heating system 2 are combined with each other, so that the heating intensity inside and outside the food is ensured, and the heating uniformity is improved.

On the other hand, steam generator 3 to export vapor in the working chamber, vapor is as the heat carrier, and heat conduction efficiency is because the air, effectively improves electric heating system 2's work efficiency, and because vapor's heat conduction is respond well, works as the inside steam that is full of working chamber, the inside even high temperature environment of a whole temperature that can form of working chamber, and under the circumstances of anhydrous vapor, can appear being close to electric heating system 2's the obviously higher condition of regional air temperature under vapor's supplementary action, electric heating system 2 can carry out more even all-round heating to the food top layer, has further strengthened the homogeneity to food heating.

Meanwhile, water vapor is introduced into the working cavity, so that the phenomenon that the food is too dry and has poor taste when the food is heated by the microwave heating system 1 and the electric heating system 2 can be prevented.

In conclusion, the heating box and the microwave oven thereof provided by the invention have remarkable advantages in the aspect of uniformly heating food.

In an optional embodiment of the present invention, the box body is provided with a first accommodating groove 41 and a second accommodating groove, the microwave heating system 1 is disposed in the first accommodating groove 41, the electric heating system 2 is disposed in the second accommodating groove, a first cover plate 42 is disposed at an opening of the first accommodating groove 41, the first cover plate 42 is used for opening or closing an opening of the first accommodating groove 41, a second cover plate is disposed at an opening of the second accommodating groove, and the second cover plate is used for opening or closing an opening of the second accommodating groove.

Specifically, the first cover plate 42 is used for packaging the microwave heating system 1 in the first receiving groove 41, and the second cover plate is used for packaging the electric heating system 2 in the second receiving groove. The heating box is assembled, firstly, an integral framework of the box body is built, then the microwave heating system 1 and the electric heating system 2 are installed in the first accommodating groove 41 and the second accommodating groove corresponding to the microwave heating system, then the opening of the first accommodating groove 41 is sealed by the first cover plate 42, and the opening of the second accommodating groove is sealed by the second cover plate. First apron 42 and second apron are as the boundary plate of working chamber, will microwave heating system 1 with electric heating system 2 separates the outside of working chamber avoids the food of heating in the working chamber pollutes microwave heating system 1 with electric heating system 2.

In an alternative embodiment of the present invention, the first receiving groove 41 and the second receiving groove are both flared toward the working chamber, and the inner diameter of the receiving groove gradually increases from the bottom of the receiving groove to the opening of the receiving groove;

a microwave reflecting layer is arranged in the first accommodating groove 41, and a heat insulating layer is arranged in the second accommodating groove.

In practical use, the microwave reflecting layer is a metal layer.

Wherein, the bottom edge of the first accommodating groove 41 is planar, which is convenient for installing the microwave heating system 1; the lateral wall of the first accommodating groove 41 is in a horn mouth shape, and is beneficial to converging the microwave emitted by the microwave heating system 1, so that the microwave is diffused into the working cavity more uniformly.

Similarly, the bottom edge of the second accommodating groove is planar, so that the electric heating system 2 is convenient to mount; the lateral wall of groove is accomodate to the second is the horn mouth form, does benefit to assemble the heat that is produced by electric heating system 2 for the more even diffusion to the work intracavity of heat.

In an alternative embodiment of the present invention, the first cover plate 42 may be a glass plate, which does not affect the microwave propagation and has good thermal stability, chemical temperature stability and smooth surface for easy cleaning.

Specifically, the periphery of the first cover plate 42 is connected with the first accommodating groove 41 through two-component silica gel to ensure the sealing property.

In an alternative embodiment of the present invention, the second cover plate may also be a glass plate, and the advantages thereof are the same as those of the first cover plate 42, and are not described herein again.

Similarly, the periphery of the second cover plate is connected with the second accommodating groove through double-component silica gel to ensure the sealing property.

In an alternative embodiment of the present invention, the electric heating system 2 includes first electric heating pipes 21, and the first electric heating pipes 21 are disposed in one-to-one correspondence with the second receiving grooves.

In this embodiment, the number of the second accommodating grooves may be set according to the actual situation of the product, and may be one or multiple. Only the first electric heating tube 21 is required to be arranged in each second accommodating groove. When the number of the second receiving grooves is plural, the second receiving grooves may be provided on one face of the bottom wall, the top wall, or the side wall of the case or on plural faces thereof. Meanwhile, when the number of the second heating grooves is multiple, the food in the working cavity can be heated more uniformly.

Similarly, the number of the first accommodating grooves 41 may also be set according to the actual situation of the product, and may be one or more. The arrangement mode can refer to the second receiving groove, and the advantage of arranging a plurality of first receiving grooves 41 is also the same as the second receiving groove, so the description is omitted here.

In an alternative embodiment of the present invention, at least one of the second receiving grooves is disposed at a bottom of the case. The second cover plate corresponding to the second accommodating groove arranged at the bottom of the box body can be used for collecting condensed water in the heating cavity.

The second cover plate of the second accommodating groove receives the condensed water in the working cavity, the water vapor slides to the second cover plate at the bottom after being condensed on the wall body of the working cavity, and the temperature of the second cover plate is higher than that in the working cavity because the heat generated by the electric heating system 2 is transferred to the working cavity through the second cover plate, so that the condensed water sliding to the second cover plate is evaporated by the second cover plate and is changed into the water vapor to be volatilized again to the working cavity for cyclic utilization, and the water vapor supply amount of the steam generator 3 can be effectively reduced.

In an alternative embodiment of the present invention, the microwave heating system 1 comprises a motor 12, an antenna 11 and a blade 13; the blade 13 is provided with the microwave reflecting layer, the blade 13 is arranged between the antenna 11 and the working cavity, the motor 12 drives the blade 13 to rotate, and the antenna 11 is used for transmitting microwaves into the working cavity.

Specifically, the blade 13 is a metal sheet, the blade 13 is partially hollowed, the microwave emitted by the antenna 11 first propagates to a side of the blade 13 away from the working chamber, and then the microwave is transmitted to the working chamber through the blade 13 at two positions, namely, the partially hollowed part on the blade 13 (in a direction perpendicular to the extending surface of the blade 13) and the edge of the blade 13 (in a direction parallel to the extending surface of the blade 13); the motor 12 is used for driving the blade 13 to rotate, the hollow part of the blade 13 and the position of the edge of the blade 13 can be switched continuously, and once the blade 13 rotates for a circle, the microwaves which are not transmitted to the working cavity are subjected to periodic direction change, so that the phenomenon that the local microwave intensity of the food to be heated is too high is avoided, and the food is uniformly heated.

Specifically, the antenna 11 transmits microwaves to the working cavity in a coupling manner, the antenna 11 is long in shaft shape, a central shaft of the antenna 11 coincides with a central shaft of an output shaft of the motor 12, the motor 12 is arranged at one end of the antenna 11, the blade 13 is arranged at the other end of the antenna 11, and the motor 12 drives the antenna 11 to further drive the blade 13 to rotate.

Specifically, a retaining ring 14 is further arranged on the outer side of the antenna 11, the antenna 11 penetrates through the retaining ring 14, and the retaining ring 14 is arranged below the blade 13; the box includes mounting panel 15, antenna 11 runs through mounting panel 15, blade 13 is located mounting panel 15 top, retaining ring 14 with mounting panel 15 with between the blade 13, the bottom surface of retaining ring 14 with mounting panel 15's top surface touches and connects, the top surface of retaining ring 14 with the bottom surface of blade 13 touches and connects, retaining ring 14 is used for bearing blade 13 weight alleviates antenna 11's pressure load.

Specifically, the retainer ring 14 includes a limiting portion 141, a first supporting portion 142, and a second supporting portion 143; a through hole matched with the limiting part 141 is formed in the box body, and the limiting part 141 penetrates through the through hole; in the radial direction, the first supporting part 142 protrudes out of the limiting part 141, the outer diameter of the first supporting part 142 is larger than the diameter of the through hole, and the first supporting part 142 is abutted with the box body; the second support portion 143 is disposed at one end of the stopper portion 141, and the second support portion 143 abuts against the vane 13. When the retainer ring 14 is installed, the limiting part 141 of the retainer ring 14 is inserted into the through hole to limit the retainer ring 14 in the radial direction, so that the installation is facilitated; the first supporting portion 142 is abutted to the box body, so that a supporting effect can be achieved, the retainer ring 14 can be prevented from being completely penetrated through the through hole, and the retainer ring 14 is axially limited.

Specifically, the second supporting portion 143 and the limiting portion 141 are coaxial cylindrical structures; the diameter of the second supporting part 143 is smaller than that of the limiting part 141, and the second supporting part 143 is connected with the limiting part 141 through an arc-shaped conical surface; the antenna 11 passes through the centers of the two support parts and the limiting part 141, and a gap is formed between the outer wall of the antenna 11 and the interiors of the second support part 143 and the limiting part 141.

The retainer ring 14 is made of flexible rubber materials, and the arc-shaped conical surface structure arranged between the second supporting portion 143 and the limiting portion 141 can increase the elastic strength of the retainer ring 14 in the axial direction.

Specifically, the bottom surface of the first supporting portion 142 is flush with the top surface of the limiting portion 141, so that the pressure applied to the second supporting portion 143 completely passes through the arc-shaped conical surface structure and can be transmitted to the first supporting portion 142, the effective use length of the arc-shaped conical surface structure is effectively ensured, and the elastic strength of the retainer ring 14 is enhanced.

Specifically, the second supporting portion 143 is far away from one end of the limiting portion 141, and is provided with a horn mouth with a large outer side and a small inner side, so that the antenna 11 is inserted and is convenient for installation by workers.

In an optional embodiment of the present invention, a connecting shaft is disposed between the antenna 11 and the blade 13, the motor 12 drives the blade 13 to rotate through the connecting shaft, the connecting shaft penetrates through the antenna 11, and the connecting shaft and the antenna 11 are disposed at an interval.

In an alternative embodiment of the invention, the blade 13 starts with a plurality of grooves in the circumferential direction, and the depth of each groove gradually increases/decreases in the circumferential direction of the blade 13.

Specifically, the number of the grooves is three, and the grooves are respectively a first groove 131, a second groove 132 and a third groove 133;

on the extension of said blade 13, the depth of the first grooves 131 is less than the depth of the second grooves 132 and less than the depth of the third grooves 133;

in the circumferential direction of the blade 13, the arc length of the third groove 133 is smaller than the arc length of the first groove 131 than the arc length of the second groove 132.

The first groove 131, the second groove 132 and the third groove 133 are fan-shaped hollow areas, and in a direction perpendicular to the extension surface of the blade 13, the microwave emitted by the antenna 11 passes through the hollow fan-shaped areas to reach the food to be heated; during heating, food is placed in the middle, the deeper the fan-shaped hollow area in the radial direction is, the closer the microwave passing through the hollow area is to the center of the food to be heated, and because the food is heated inwards and outwards during microwave heating operation, the heating effect obtained within a larger arc length range is set on the second groove 132 with medium depth is the best.

In an alternative embodiment of the present invention, the first electric heating pipes 21 and the microwave heating system 1 correspond one to one. That is, the first electric-heating pipe 21 and the microwave heating system 1 are disposed at the same position and number, so that the first electric-heating pipe 21 can reflect the microwaves emitted from the antenna 11 while heating the food.

Specifically, the first receiving groove 41 and the second receiving groove at least partially overlap. Preferably, in order to improve space utilization, in the present embodiment, the first receiving groove 41 and the second receiving groove completely overlap. Accordingly, the first receiving groove 41 and the second receiving groove share a cover plate, thereby saving cost.

The first electric heating pipe 21 extends circumferentially around the microwave heating system 1; the microwave heating system 1 heats food from inside to outside, the electric heating system 2 heats food from outside to inside, and the first electric heating pipe 21 surrounds the microwave heating system 1, so that the microwave heating system 1 and the electric heating system 2 are more complete, and the heating effect is better.

In an alternative embodiment of the present invention, the first electric-heating tube 21 is a metal heating tube, and the metal heating tube refracts and reflects the microwave emitted from the antenna 11, so that the uniformity of the microwave transmitted to the working chamber is better.

In an optional embodiment of the present invention, a partition board is disposed in the working chamber, the partition board divides the working chamber into two independent chambers, and the partition board is provided with a microwave reflecting layer;

the baffle is detachably connected with the box body.

Specifically, be provided with the slide in the working chamber, be provided with assorted slider on the baffle, the baffle with the size, the shape of working cross section are identical, utilize the baffle is adjustable the size of working chamber is convenient for concentrate heating resources are saved to the less food of volume.

In an optional embodiment of the present invention, a second electric heating tube and a heat insulation layer are arranged in the partition plate;

the second electric heating pipe is arranged in the partition plate, and the heat insulation layer is arranged on one side, far away from the object to be heated, of the partition plate.

Specifically, an electric slot is arranged in the box body, a detachable sealing cover is arranged on the electric slot, and the electric slot is sealed by the sealing cover when the partition plate is not used, so that heated food is prevented from being polluted. And a plug matched with the electric socket is arranged on the partition plate, and the plug is electrically connected with the second electric heating pipe.

Specifically, the plug protrudes out of the partition board, and the plug is simultaneously inserted into the electric slot during the installation and positioning process of the partition board along the slide way.

Specifically, in the process of installing and positioning the partition plate along the slide way, the partition plate simultaneously completes plugging of the opening of the electric insertion slot, and the electric insertion slot is prevented from being insensitive to food to be heated.

A cooking apparatus comprising at least a heating cabinet according to any of the above embodiments. The cooking equipment can be a microwave oven, a micro-steaming integrated machine, a micro-baking integrated machine or a micro-steaming and baking integrated machine; an integrated cooker integrating the above devices, and the like can also be adopted.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A heating box is characterized by comprising a box body, a microwave heating system (1), an electric heating system (2) and a steam generator (3);

the box body at least comprises a working cavity, and the microwave heating system (1), the electric heating system (2) and the steam generator (3) are arranged on the outer side of the working cavity;

the microwave heating system (1) is used for emitting microwaves into the working cavity;

the electric heating system (2) is used for transferring heat into the working cavity;

and the air outlet of the steam generator (3) is communicated with the working cavity.

2. The heating cabinet according to claim 1, wherein the cabinet body is provided with a first accommodating groove (41) and a second accommodating groove, the microwave heating system (1) is disposed in the first accommodating groove (41), the electric heating system (2) is disposed in the second accommodating groove, a first cover plate (42) is disposed at an opening of the first accommodating groove (41), the first cover plate (42) is used for opening or closing the opening of the first accommodating groove (41), a second cover plate is disposed at an opening of the second accommodating groove, and the second cover plate is used for opening or closing the opening of the second accommodating groove.

3. A heating chamber, according to claim 2, characterized in that said first housing groove (41) and said second housing groove are both bell mouth-like structures and face said working chamber;

the inner diameter of the first accommodating groove (41) is gradually increased from the bottom of the first accommodating groove (41) to the opening of the first accommodating groove (41); from the bottom of the second accommodating groove to the opening of the second accommodating groove, the inner diameter of the second accommodating groove is gradually increased;

a microwave reflecting layer is arranged in the first accommodating groove (41), and a heat insulating layer is arranged in the second accommodating groove.

4. A heating cabinet according to claim 2, characterized in that the electric heating system (2) comprises first electric heating pipes (21), and the first electric heating pipes (21) correspond to the second receiving grooves one to one.

5. A heating cabinet according to claim 4, wherein at least one second receiving groove is formed in a bottom of the cabinet, and the second cover plate formed in the bottom of the cabinet is used to collect the condensed water.

6. A heating cabinet according to claim 3, characterized in that the microwave heating system (1) comprises a motor (12), an antenna (11) and a blade (13); be equipped with on blade (13) the microwave reflection stratum, blade (13) set up antenna (11) with between the working chamber, motor (12) drive blade (13) rotate, antenna (11) be used for to the microwave is launched in the working chamber.

7. A heating box according to claim 6, characterized in that the blades (13) are provided with a plurality of grooves in the circumferential direction, and the depth of the plurality of grooves gradually increases/decreases in the circumferential direction of the blades (13).

8. A heating cabinet according to claim 7, characterized in that the number of grooves is three, respectively a first groove (131), a second groove (132), a third groove (133);

on the extension surface of the blade (13), the depth of the first groove (131) is less than that of the second groove (132) and less than that of the third groove (133);

the arc length of the third groove (133) is smaller than the arc length of the first groove (131) than the arc length of the second groove (132) in the circumferential direction of the blade (13).

9. A heating box according to claim 6, characterized in that a collar (14) is arranged below the blades (13), the collar (14) being connected to the blades (13).

10. A heating cabinet according to claim 9, characterized in that the antenna (11) is connected to the motor (12) at one end and to the blade (13) through the collar (14) at the other end; the motor (12) drives the blade (13) to rotate through the antenna (11).

11. A heating cabinet according to claim 10, characterized in that the retainer ring (14) comprises a stopper portion (141), a first support portion (142) and a second support portion (143);

the box body is provided with a through hole matched with the limiting part (141), and the limiting part (141) penetrates through the through hole; in the radial direction, the first supporting part (142) protrudes out of the limiting part (141), the outer diameter of the first supporting part (142) is larger than the diameter of the through hole, and the first supporting part (142) is abutted against the box body;

the second supporting part (143) is arranged at one end of the limiting part (141), and the second supporting part (143) is abutted to the blade (13).

12. A heating box according to claim 11, characterized in that the second supporting portion (143) and the limiting portion (141) are of a coaxial cylindrical structure;

the diameter of the second supporting part (143) is smaller than that of the limiting part (141), and the second supporting part (143) is connected with the limiting part (141) through an arc-shaped conical surface.

13. A heating box according to claim 12, characterized in that one end of the second supporting part (143) far away from the limiting part (141) is provided with a bell mouth with a larger outside and a smaller inside.

14. A heating cabinet according to claim 2, characterized in that the electric heating system (2) comprises a first electric heating pipe, which is arranged corresponding to the microwave heating system (1);

the first accommodating groove (41) and the second accommodating groove are at least partially overlapped, the first electric heating pipe (21) and the microwave heating system (1) are arranged in the overlapped part, and the first electric heating pipe (21) surrounds the periphery of the microwave heating system (1).

15. Cooking device, characterized in that it comprises at least a heating chamber according to any of the preceding claims 1-14.