CN213746891U

CN213746891U - Cooking device

Info

Publication number: CN213746891U
Application number: CN202021952364.7U
Authority: CN
Inventors: 蒋学松; 陈茂顺
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: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-07-20
Anticipated expiration: 2030-09-08

Abstract

The utility model discloses a cooking device, cooking device includes: the heating device comprises a box body, a heating cavity and a heating device, wherein the box body is internally provided with the heating cavity; the middle partition plates are arranged in a plurality and are spaced along the height direction of the box body, and food materials to be cooked are suitable for being placed on the middle partition plates for cooking; the radio frequency heating device comprises two groups of feed antennas, the two groups of feed antennas are respectively arranged on two opposite inner wall surfaces of the box body, and the feed antennas are suitable for radiating electromagnetic energy into the heating cavity. According to the utility model discloses cooking device, overall structure is simple, and heating efficiency is high, can carry out the even heating to multilayer food, has promoted user experience.

Description

Cooking device

Technical Field

The utility model belongs to the technical field of the kitchen electricity technique and specifically relates to a cooking device is related to.

Background

Among the current radio frequency or microwave heating technique, a plurality of feed are in the same one side of cavity, the feed mode has top feed, lateral wall feed, three kinds of bottom feed, the electromagnetic energy of above-mentioned feed mode can only pass through unilateral feed coupling to whole heating chamber in, when placing multilayer food in the cavity, the electromagnetic environment is more complicated in the cavity, unilateral feed mode is difficult to let all foods of electromagnetic energy uniform radiation, very easily arouse the phenomenon that food somewhere temperature is far above other positions, lead to the heating inequality, this brings a great deal of inconvenience for user daily heating, food unfreezes, user experience has greatly been reduced.

Disclosure of Invention

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a cooking device, cooking device overall structure is simple, and heating efficiency is high, can carry out the even heating to multilayer food, has promoted user experience.

According to the utility model discloses cooking device includes: the heating device comprises a box body, a heating cavity and a heating device, wherein the box body is internally provided with the heating cavity; the middle partition plates are arranged in a plurality and are spaced along the height direction of the box body, and food materials to be cooked are suitable for being placed on the middle partition plates for cooking; the radio frequency heating device comprises two groups of feed antennas, the two groups of feed antennas are respectively arranged on two opposite inner wall surfaces of the box body, and the feed antennas are suitable for radiating electromagnetic energy into the heating cavity.

According to the utility model discloses cooking device, the heating chamber is convenient for hold and is waited to cook food, maintain the inside temperature of box, through at the inside median septum that sets up of box, make cooking device can heat a plurality of food simultaneously, operations such as unfreeze, the getting of the food of being convenient for is put, through set up feed antenna on two relative internal faces of box, heating efficiency has been promoted, make the inside and outside heating temperature of food unanimous basically, overall structure is simple, heating efficiency is high, can carry out the even heating to multilayer food, user experience has been promoted.

In addition, according to the utility model discloses cooking device, can also have following additional technical characterstic:

in some embodiments of the present invention, the middle partition is provided with two, the middle partition is respectively adjacent to the bottom plate and the top plate of the box, so that after the food material to be cooked is placed on the middle partition, the food material to be cooked is respectively adjacent to the bottom plate and the top plate of the box.

Optionally, in the height direction of the box body, the feed antennas on the left and right sides are disposed between the two middle partition plates, and are both disposed adjacent to the middle partition plate located at the upper end.

In some embodiments of the present invention, the feed antenna is disposed in a middle portion of the box body in a height direction of the box body.

In some embodiments of the present invention, the feed antenna of each group is provided in plurality, and the feed antennas are provided on the inner wall surface of the box body at intervals in the horizontal direction.

Optionally, the radio frequency heating apparatus further comprises: the solid source is arranged on the top wall of the box body; the radio frequency coaxial cable, the radio frequency coaxial cable is equipped with a plurality ofly, and is a plurality of the one end of radio frequency coaxial cable all with solid-state source links to each other, and is a plurality of the other end of radio frequency coaxial cable links to each other with a plurality of feed antenna one-to-one.

Further, the solid-state source is adapted to emit electromagnetic wave frequencies including at least: 430MHz, 915MHz and 2450 MHz.

In some embodiments of the present invention, the rf heating device further comprises: the radio frequency connector is arranged on the outer wall surface of the box body and fixes the feed antenna.

In some embodiments of the present invention, the feed antenna is formed as any one of a monopole antenna, a helical antenna, and a parallel electrode plate.

In some embodiments of the invention, the feed antenna polarizations are orthogonal.

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

Drawings

The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a cooking device according to an embodiment of the present invention when a partition is placed;

fig. 2 is a schematic structural view of an unplaced middle partition of a cooking apparatus according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a cooking device according to an embodiment of the present invention.

Reference numerals:

100: a cooking device;

1: a box body; 11: a heating cavity;

2: a middle partition plate;

3: a radio frequency heating device; 31: a feed antenna; 32: a solid state source; 33: a radio frequency coaxial cable; 34: a radio frequency connector.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A cooking apparatus 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 3.

According to the utility model discloses cooking device 100, cooking device 100 includes: the device comprises a box body 1, a middle partition plate 2 and a radio frequency heating device 3.

Specifically, as shown in fig. 1-3, a heating cavity 11 is formed in the box body 1, that is, the heating cavity 11 is convenient for containing food to be cooked, and avoids heat loss, so that the operation is easy and the heating efficiency is high.

Furthermore, the box body 1 is provided with a box door for sealing the heating cavity 11, and after food is placed in the heating cavity 11, the loss of heat can be effectively prevented by closing the box door, so that the heating cavity 11 can be well maintained at a set temperature.

As shown in fig. 1, the median septum 2 is equipped with a plurality ofly, a plurality of median septa 2 are spaced apart from the setting along the direction of height of box 1, treat that the culinary art food is suitable for placing and cooks on median septum 2, that is to say, use cooking device 100 to heat food when the user, unfreeze etc. the operation, treat that the quantity of culinary art food is often a plurality of, place a plurality ofly treat the culinary art food respectively on a plurality of median septa 2, the demand of cooking a plurality of food simultaneously has been satisfied, avoided food because of piling up, the extrusion causes sheltering from electromagnetic energy in the heating process, and then make the heating effect inhomogeneous, and the condition such as other food tastes is influenced to the liquid that unfreezes among the thawing process, user experience has been promoted. Further, the middle partition 2 is transversely disposed to facilitate the food to be taken and placed in the cooking apparatus 100, and the operation is easy, wherein a plurality here refers to two or more, and the specific number of the middle partitions 2 is not limited here.

As shown in fig. 1-3, the rf heating device 3 includes two sets of feeding antennas 31, the two sets of feeding antennas 31 are respectively disposed on two opposite inner walls of the box body 1, the feeding antennas 31 are adapted to radiate electromagnetic energy into the heating cavity 11, that is, when food needs to be heated, thawed, and the like, food to be cooked is placed on the middle partition board 2, at this time, the rf heating device 3 starts to work, continuously transmits electromagnetic energy into the box body 1 through the feeding antennas 31, and radiates the food, thereby achieving the operations of heating, thawing, and the like of the food.

Wherein, two sets of feed antennas 31 set up relatively for the electromagnetic energy that feed antenna 31 launched can radiate the both sides of food simultaneously, can understand, place food when cooking between two sets of feed antennas 31, the electromagnetic energy that feed antenna 31 launched passes through inside the food surface gets into food, nevertheless because the energy can reduce gradually at the in-process of the inside transmission of food, makes the inside heating effect of food be less than the heating effect on food surface. Through radiating electromagnetic energy simultaneously in food both sides, make food inside can receive the radiant energy who comes from both sides simultaneously, the electromagnetic energy of opposite side is received on the food surface reduces gradually in the inside transmission in-process of food, consequently make the heating effect of food inside almost unanimous with the heating effect on food surface, when unilateral feed antenna 31 emission electromagnetic energy has been avoided effectively, food is close to one side of feed antenna 31, heating efficiency is higher than the problem of other positions, and then influence the edible impression of user, the efficiency when having improved food and heating, when operation such as unfreezing, guaranteed simultaneously that food can be by even heating, user experience has been promoted.

According to the utility model discloses cooking device 100, heating chamber 11 is convenient for hold and is waited to cook food, maintain 1 inside temperature of box, through at 1 inside median septum 2 that sets up of box, make cooking device 100 can heat a plurality of food simultaneously, operation such as unfreeze, the getting of the food of being convenient for is put, through set up feed antenna 31 on two relative internal faces at box 1, heating efficiency has been promoted, make the inside and outside heating temperature of food unanimous basically, the whole structure is simple, heating efficiency is high, can carry out the even heating to multilayer food, user experience has been promoted.

In some embodiments of the present invention, as shown in fig. 1, the middle partition board 2 is provided with two, two middle partition boards 2 are respectively adjacent to the bottom board and the top board of the box body 1, so that after food to be cooked is placed on the two middle partition boards 2, the bottom board and the top board of the box body 1 are respectively adjacent to the two middle partition boards, that is, when multi-layer food or various foods are cooked, the food can be respectively placed on the upper and lower middle partition boards 2, the feed antennas 31 on both sides of the inner wall emit electromagnetic energy and radiate to the whole cavity, and then the food is heated.

It can be understood that in the process of electromagnetic energy radiation, one layer of the partition board 2 is close to the top of the heating cavity 11, and the other layer is close to the bottom of the heating cavity 11, and the electromagnetic energy radiated by the feed antennas 31 on both sides of the inner wall penetrates the food with the minimum cross-sectional area of the food, so that both sides of the food can be heated by the radiation energy of the feed antennas 31. And above-mentioned mode of setting up can separate certain distance with food, can reduce effectively and shelter from electromagnetic energy between the food, and then improve heating efficiency to reach the effect of even heating food.

It should be noted that, the number and the position of the middle partition boards 2 can be selected according to the actual requirement of the user, and here, only one of the specific embodiments is illustrated by way of example, which is convenient for understanding the present invention, and is not a limitation of the present invention.

In some examples, the opposite two side surfaces of the box body 1 are provided with guide grooves in the same direction as the direction of the middle partition board 2, so that the middle partition board 2 can be conveniently detached, and when a plurality of middle partition boards 2 are not needed, the redundant middle partition boards 2 can be taken out along the guide grooves, and the operation is easy.

Alternatively, referring to fig. 1, in the height direction of the cabinet 1, the feed antennas 31 on the left and right sides are provided between the two middle partitions 2, and are disposed adjacent to the middle partition 2 at the upper end, that is, when food is placed on the middle partition 2 to be heated, the electromagnetic energy emitted from the feeding antenna 31 can pass through the food on the upper and lower middle partition boards 2 with the minimum cross-sectional area of the food, ensuring the uniform heating of the food, at the same time, the food has a certain height, and therefore, the feed antenna 31 is closer to the middle partition 2 at the upper end, the electromagnetic energy radiation that makes feed antenna 31 transmission is to being located the upper half of food on upper end median septum 2 and radiating the distance that is located the lower half of food on lower extreme median septum 2 are close, has further reduced the emergence of the unequal condition of heating that feed antenna 31 leads to because of the radiation distance is different, has promoted the culinary art effect.

In some embodiments of the present invention, as shown in fig. 1-3, in the height direction of the box body 1, the feed antenna 31 is disposed in the middle of the box body 1, that is, in the implementation process of the present invention, the box body 1 is mostly rectangular, the feed antenna 31 is disposed in the middle of the opposite side, in the process of heating food by the cooking device 100, the feed antennas 31 on the left and right sides emit electromagnetic energy radiation to any distance in the heating cavity 11 of the half where they are located, which is substantially the same, so as to ensure the uniform radiation of electromagnetic energy, further ensure the uniform distribution of heat in the heating cavity 11, and better achieve the uniform heating of multilayer food.

It should be noted that, the above description is provided for one specific embodiment, so as to facilitate understanding of some working principles of the present invention, and is not intended to limit the present invention.

In some embodiments of the utility model, the feed antenna 31 of every group is equipped with a plurality ofly, and a plurality of feed antennas 31 are located on the internal face of box 1 along the horizontal direction interval, that is to say, in the heating process, through a plurality of feed antennas 31 to the electromagnetic energy of heating intracavity 11 transmission for wait to cook more positions of food can possess the shortest radiation distance with a certain feed antenna 31, improved heating efficiency, and the heating effect is more even.

Optionally, as shown in fig. 1 to 3, the radio frequency heating apparatus 3 further includes: the solid-state source 32 and the radio frequency coaxial cable 33, the solid-state source 32 is arranged on the top wall of the box body 1, the radio frequency coaxial cable 33 is provided with a plurality of radio frequency coaxial cables 33, one ends of the radio frequency coaxial cables 33 are connected with the solid-state source 32, the other ends of the radio frequency coaxial cables 33 are connected with the feed antennas 31 in a one-to-one correspondence mode, when food in the heating cavity 11 needs to be heated, the solid-state source 32 generates multi-path electromagnetic energy, each radio frequency coaxial cable 33 is connected with the solid-state source 32 and the feed antenna 31 corresponding to the solid-state source, the electromagnetic energy is transmitted to the feed antenna 31 through the radio frequency coaxial cable 33, and then the electromagnetic energy is emitted and radiated into the heating cavity 11 through the feed antenna 31.

In some examples, the solid-state source 32 may also be installed at any position such as the back or the side of the box 1, which is convenient for installation, and may be selectively set according to actual production requirements, or may be selectively set according to aesthetic requirements, where no limitation is made, it is understood that the trend of the radio frequency coaxial cable 33 may change along with the change of the position of the solid-state source 32, so as to ensure that electromagnetic energy can be normally radiated into the heating cavity 11, and details are not repeated here.

In a specific embodiment of the present invention, the radio frequency coaxial cable 33 can be replaced by a waveguide line for conducting electromagnetic energy, in other words, the radio frequency coaxial cable 33 can be replaced by an object capable of realizing electromagnetic energy conduction, such as a waveguide, a microstrip line, etc., without limitation.

Further, the solid-state source 32 is adapted to emit electromagnetic wave frequencies including at least: 430MHz, 915MHz and 2450MHz, that is, the temperature inside the heating cavity 11 of the cooking device 100 can be set according to the user's requirement during the cooking process of the food according to the type of the food and the cooking manner. It can be understood that the frequency of the electromagnetic wave is directly proportional to the heating temperature that can be provided, and the cooking device 100 better meets various temperature requirements of a user by setting the frequency of the electromagnetic wave in multiple gears, thereby expanding the application range of the cooking device 100.

In some examples, be equipped with the button that can select the electromagnetic wave frequency on the outside box 1 of cooking device 100, also can be the knob, be equipped with button or the knob that can control the time simultaneously, the user can select suitable heating frequency gear and heating time according to the culinary art demand, and is simple convenient, has promoted user experience.

In some embodiments of the present invention, the rf heating device 3 further includes an rf connector 34, the rf connector 34 is disposed on the outer wall surface of the box body 1, the rf connector 34 fixes the feeding antenna 31, in some examples, the rf connector 34 is perpendicular to the side wall through the opening and inserted into the heating cavity 11, and is fixed on the side wall through a gasket and a nut, one end of the rf connector 34 far away from the heating cavity 11 is connected to the output end of the rf coaxial cable 33, the output end herein refers to one end of the rf coaxial cable 33 not connected to the solid source 32, and the other end of the rf connector 34 is threaded and connected to the input end of the feeding antenna 31.

That is, the solid-state source 32 generates multiple paths of electromagnetic energy, and the multiple paths of corresponding rf coaxial cables 33 are transmitted to the feeding antennas 31 located at two sides inside the heating cavity 11 through the rf connectors 34, so that the feeding antennas 31 emit the electromagnetic energy into the heating cavity 11 and radiate food for cooking.

In some examples, the rf connectors 34 may be distributed at any position on both sides of the inner wall of the housing 1, and need not be symmetrically disposed, and the feed antennas 31 may be provided in multiple sets, at least one set, so as to radiate electromagnetic energy into the heating cavity 11 at more angles, and thus the orientation of the rf connectors 34 connected to the input ends of the feed antennas 31 can be more flexibly selected.

It should be noted that, the connection between the rf connector 34 and the feeding antenna 31, the rf coaxial cable 33, and the connection manner of fixing the rf connector 34 on the side wall may be any manner that can fix the two, and the above description is only convenient for understanding the internal structure of the present invention, and is not a limitation of the present invention.

In some embodiments of the utility model, feed antenna 31 forms any one of monopole antenna, helical antenna and parallel electrode board, and specifically, cooking device 100 can cooperate with the feed antenna 31 of multiple model to use, has reduced the degree of difficulty of later maintenance, and the type of above-mentioned feed antenna 31 can be betterly with electromagnetic energy radiation to heating chamber 11 inside, with the utility model discloses an inside structure agrees with, has improved electromagnetic energy's coupling efficiency, and then has promoted cooking device 100's heating capacity.

In some embodiments of the present invention, feed antenna 31 is polarized orthogonally, and specifically, in the process of transmitting electromagnetic energy by feed antenna 31, by polarizing orthogonally the electromagnetic energy transmitted by the opposing antenna, energy coupling between opposing feed antennas 31 is effectively avoided, that is, electromagnetic energy transmitted by feed antenna 31 is prevented from being coupled through its opposing feed antenna 31, returning to solid state source 32 via radio frequency coaxial cable 33, and further damaging solid state source 32. By polarizing the feeding antenna 31 orthogonally, the life of the cooking apparatus 100 is effectively extended.

A specific configuration and a specific cooking process of the cooking apparatus 100 according to one specific embodiment of the present invention are described below with reference to fig. 1 to 3.

The cooking apparatus 100 includes: a box body 1, a middle clapboard 2 and a radio frequency heating device 3.

Referring to fig. 3, the box body 1 is opened forwards, a heating cavity 11 is formed inside, a transverse guide groove suitable for placing the middle partition board 2 is formed on the inner wall of the box body 1, the middle partition board 2 is placed at the position shown in fig. 1, the middle partition board 2 at the upper end is close to the top of the box body 1, and the middle partition board 2 at the lower end is close to the bottom of the box body 1.

Referring to fig. 1-3, the radio frequency heating apparatus 3 includes: a solid state source 32, a radio frequency coaxial cable 33, a radio frequency connector 34, and a feed antenna 31.

The solid source 32 is fixed on the top of the box body 1 through screws, two energy output ports are respectively arranged on two sides of the solid source 32 and respectively provide energy for two paths of feed sources, each output port is connected with a radio frequency coaxial cable 33, the radio frequency coaxial cables 33 on two sides of the box body 1 extend to the side wall of the box body 1 along the top to be connected with a radio frequency connector 34, holes are formed in the side walls on two sides of the box body 1, the radio frequency connectors 34 are inserted into the heating cavity 11 through the holes and are fixed on the side wall of the box body 1 through gaskets and nuts, one end of each radio frequency connector 34 is provided with threads to be connected with a feed antenna 31, the other end of each radio frequency coaxial cable 33 is connected with the radio frequency coaxial cables 34, two groups of feed antennas 31 are respectively arranged on two opposite inner wall surfaces of the box body 1, in the height direction, the feed antennas 31 are arranged in the middle of the box body 1, and the two groups of feed antennas 31 are polarized in an orthogonal and are fixed on the radio frequency connectors 34 through threads, electromagnetic energy is efficiently radiated into the cavity.

A specific cooking process according to the cooking apparatus 100 is described below according to fig. 1 to 3.

Treat the culinary art food with the multilayer and place respectively on middle spacer 2 from top to bottom, close 1 chamber door of box, the user can set up according to food culinary art required temperature, time, and solid-state source 32 passes through radio frequency coaxial cable 33, radio frequency connector 34 according to user's setting, will produce the electromagnetic energy, radiates to heating chamber 11 in through feed antenna 31, accomplishes the culinary art back, and solid-state source 32 stops to produce the electromagnetic energy, opens the chamber door, takes out the food that the culinary art finished.

Other configurations and operations of the cooking apparatus 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooking device, comprising:

the heating device comprises a box body, a heating cavity and a heating device, wherein the box body is internally provided with the heating cavity;

the middle partition plates are arranged in a plurality and are spaced along the height direction of the box body, and food materials to be cooked are suitable for being placed on the middle partition plates for cooking;

the radio frequency heating device comprises two groups of feed antennas, the two groups of feed antennas are respectively arranged on two opposite inner wall surfaces of the box body, and the feed antennas are suitable for radiating electromagnetic energy into the heating cavity.

2. The cooking apparatus of claim 1, wherein there are two of the middle partitions, and the two middle partitions are disposed adjacent to a bottom plate and a top plate of the cabinet, respectively, such that the food material to be cooked is adjacent to the bottom plate and the top plate of the cabinet, respectively, after being placed on the two middle partitions.

3. The cooking apparatus according to claim 2, wherein the feed antennas on the left and right sides are provided between the two middle partitions in the height direction of the cabinet, and are disposed adjacent to the middle partition at the upper end.

4. The cooking apparatus according to claim 1, wherein the feeding antenna is provided at a middle portion of the case in a height direction of the case.

5. The cooking apparatus according to claim 1, wherein a plurality of the feed antennas are provided for each group, and the plurality of the feed antennas are provided on an inner wall surface of the casing at intervals in a horizontal direction.

6. The cooking device of claim 5, wherein the radio frequency heating device further comprises:

the solid source is arranged on the top wall of the box body;

the radio frequency coaxial cable, the radio frequency coaxial cable is equipped with a plurality ofly, and is a plurality of the one end of radio frequency coaxial cable all with solid-state source links to each other, and is a plurality of the other end of radio frequency coaxial cable links to each other with a plurality of feed antenna one-to-one.

7. The cooking device of claim 6, wherein the solid state source is adapted to emit electromagnetic wave frequencies comprising at least: 430MHz, 915MHz and 2450 MHz.

8. The cooking device of claim 1, wherein the radio frequency heating device further comprises: the radio frequency connector is arranged on the outer wall surface of the box body and fixes the feed antenna.

9. The cooking apparatus according to claim 1, wherein the feeding antenna is formed as any one of a monopole antenna, a helical antenna, and a parallel electrode plate.

10. The cooking device of claim 1, wherein the feed antenna polarizations are orthogonal.