CN114321997A

CN114321997A - Microwave cooking apparatus

Info

Publication number: CN114321997A
Application number: CN202011068972.6A
Authority: CN
Inventors: 何建波; 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: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-12

Abstract

The invention discloses microwave cooking equipment which comprises a box body, a plate-shaped piece, a microwave generating device and a radiation device, wherein a cooking cavity is arranged in the box body, the plate-shaped piece is used for forming part of the cooking cavity, the microwave generating device is arranged in the box body and used for generating microwaves, at least one wave transmitting part which is permeable to the microwaves is arranged on the plate-shaped piece, the radiation device is arranged in the box body and used for converting the microwaves generated by the microwave generating device into spherical waves to be radiated to the plate-shaped piece, and the wave transmitting part is used for converting the spherical waves radiated to the plate-shaped piece into plane waves to enter the cooking cavity. When cooking food, microwave generating device starts and produces the microwave, and radiation device is with the form directive platelike spare of microwave with the spherical wave, and when the wave portion was passed through, the propagation form of microwave was turned into the plane wave and is entered into the culinary art intracavity to the plane wave distributes more evenly at the culinary art intracavity, has guaranteed that food culinary art in-process is heated evenly, has improved the culinary art quality of food, and user's use experience has obtained the promotion.

Description

Microwave cooking apparatus

Technical Field

The invention relates to the technical field of cooking devices, in particular to microwave cooking equipment.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

Microwave heating is widely applied to food and related fields due to the characteristics of high-efficiency heating, instantaneous heating, small thermal inertia and the like. When a microwave cooking device (such as a microwave oven or the like) heats food, the microwave cooking device generates microwaves, the microwaves act on the food placed in a cooking cavity, and polar molecules or charged particles inside the food violently move due to interaction, so that the polar molecules/charged particles collide with each other and rub against each other to generate heat, and the food is cooked.

In the prior art, after the microwave enters the cooking cavity, the microwave is not uniformly distributed in the cooking cavity, so that the food can not be uniformly heated, the food cooking quality is easy to deteriorate, and the use experience of a user is reduced.

Disclosure of Invention

The object of the present invention is to at least solve the problem of uneven microwave distribution in the cooking cavity. The purpose is realized by the following technical scheme:

the present invention provides a microwave cooking apparatus, including:

the cooking box comprises a box body, wherein a cooking cavity is arranged in the box body;

the microwave generating device is arranged in the box body and is used for generating microwaves;

a plate-like element for forming part of said cooking cavity, said plate-like element being provided with at least one wave-transparent portion transparent to said microwaves;

the radiation device is arranged on the box body and used for converting the microwaves generated by the microwave generating device into spherical waves to be radiated to the plate-shaped piece, and the wave-transmitting part is used for converting the spherical waves radiated to the plate-shaped piece into plane waves to enter the cooking cavity.

According to the microwave cooking equipment, the microwave generating device and the radiating device are arranged on the outer side of the cooking cavity, the radiating device is arranged corresponding to the plate-shaped piece, when food is cooked, the microwave generating device is started and generates microwaves, the microwaves are transmitted to the radiating device, the microwaves are emitted to the plate-shaped piece in the spherical wave form by the radiating device, when the microwaves pass through the wave transmitting part, the propagation form of the microwaves is converted into plane waves, the microwaves enter the cooking cavity in the plane wave form, the microwaves propagated in the cooking cavity by the plane waves are distributed more uniformly, the uniform heating in the food cooking process is ensured, the cooking quality of the food is improved, and the use experience of a user is improved.

In addition, the microwave cooking device according to the present invention may further have the following additional technical features:

in some embodiments of the present invention, the wave-transmitting portion has a rectangular structure.

In some embodiments of the present invention, the number of the wave-transmitting portions is plural, and the wave-transmitting portions are arranged at intervals on the plate-like member.

In some embodiments of the invention, the plate comprises:

a substrate portion having a wave-transmitting structure;

and the strip parts are of non-wave-transmitting structures and are a plurality of in number, the strip parts are arranged on the base plate part at intervals, and the wave-transmitting part is formed between every two adjacent strip parts.

In some embodiments of the invention, one end of the strap portion is aligned with one side of the base plate portion and the other end of the strap portion is aligned with the other side of the base plate portion;

and/or the strap portion is a metallic piece.

In some embodiments of the present invention, the wave-transmitting portion is a groove-like structure formed on the plate-like member.

In some embodiments of the invention, one end of the slot-like structure is communicated with one side of the plate-like member, and the other end of the slot-like structure is communicated with the other side of the plate-like member;

and/or the number of the groove-shaped structures is multiple, and the groove-shaped structures are arranged on the plate-shaped member at intervals.

In some embodiments of the invention, the plate is located at the bottom of the cooking chamber.

In some embodiments of the present invention, the microwave cooking apparatus further includes a transmission device disposed in the box body and configured to transmit the microwaves generated by the microwave generating device to the radiation device.

In some embodiments of the invention, the transmission device is a waveguide or a coaxial line;

and/or the radiating element is any one of a slot antenna, a patch antenna, a horn antenna or a dipole antenna.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows a structural schematic view of a microwave cooking apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a plate-shaped member of the microwave cooking apparatus shown in fig. 1;

FIG. 3 is a schematic structural view of a first embodiment of the plate member shown in FIG. 2;

fig. 4 is a schematic structural view of a second embodiment of the plate-like member shown in fig. 2.

The reference numbers are as follows:

100 is a microwave cooking device;

10 is a box body;

11 is a cooking cavity;

20 is a plate-shaped member;

21 is a substrate portion;

22 is a strip portion;

23 is a wave-transmitting part;

30 is a microwave generating device;

40 is a transmission device;

50 is a radiation device;

and 60 is a control device.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 4, according to an embodiment of the present invention, a microwave cooking apparatus 100 is provided, the microwave cooking apparatus 100 includes a box 10, a plate 20, a microwave generating device 30 and a radiating device 50, the box 10 is provided with a cooking cavity 11, the plate 20 is used for forming part of the cooking cavity 11, the microwave generating device 30 is provided in the box 10 and is used for generating microwaves, the plate 20 is provided with at least one wave-transmitting portion 23 which is transparent to microwaves, the radiating device 50 is provided in the box 10 and is used for converting the microwaves generated by the microwave generating device 30 into spherical waves and radiating the spherical waves to the plate 20, and the wave-transmitting portion 23 is used for converting the spherical waves radiated to the plate 20 into plane waves and entering the cooking cavity 11.

Specifically, microwave generating device 30 and radiation device 50 all set up in the outside of culinary art chamber 11, radiation device 50 corresponds the setting with platelike piece 20, when cooking food, microwave generating device 30 starts and produces the microwave, the microwave transmits to radiation device 50 on, radiation device 50 shoots plate-like piece 20 with the form of spherical wave with the microwave, when the microwave passes through wave-transparent portion 23, the propagation form of microwave is turned into the plane wave, the microwave enters into culinary art chamber 11 with the form of plane wave, it is more even to distribute with the microwave that the plane wave propagated in culinary art chamber 11, it is even to be heated in the food culinary art in-process to have guaranteed, and then the culinary art quality of food has been improved, make user's use experience obtain promoting.

It should be understood that the plate-shaped member 20 forms part of the cooking cavity 11, that is, the plate-shaped member 20 is used to form the cooking cavity 11 and one side surface of the plate-shaped member 20 forms an inner surface of the cooking cavity 11, the microwave generating device 30 is located to enter the cooking cavity 11 through the wave-transmitting portion 23 of the plate-shaped member 20 to achieve microwave heating of food in the cooking cavity 11, and the plate-shaped member 20 having the wave-transmitting portion 23 can effectively control the location where the microwave enters the cooking cavity 11 and the propagation mode of the microwave, so that the microwave entering the cooking cavity 11 can uniformly heat the food in the cooking cavity 11, the quality of the food is improved, and the user experience is improved.

It should be noted that, the radiation device 50 is disposed corresponding to the plate-shaped member 20, the microwave generated by the microwave generation device 30 is transmitted to the radiation device 50, when the microwave propagates along the radiation device 50, the microwave is transmitted to the plate-shaped member 20 at a transmission point of the radiation device 50, the propagation form of the microwave is converted into a spherical wave, and when the spherical wave passes through the wave-transmitting portion 23 on the plate-shaped member 20, the spherical wave is converted into a plane wave and enters the cooking cavity 11 according to the diffraction principle of the light, so as to ensure the uniformity of the microwave in the cooking cavity 11, and heat the food uniformly, thereby improving the quality of the food.

It is further understood that the wave-transmitting portion 23 has a rectangular structure. Specifically, the microwave generated by the microwave generating device 30 is transmitted to the plate-shaped member 20 in the form of spherical wave after passing through the radiating device 50, and when the microwave passes through the wave-transmitting portion 23, the transmission form of the microwave is converted into planar wave, and because the wave-transmitting portion 23 is of a rectangular structure, when the microwave passes through the wave-transmitting portion 23, the effect of converting spherical wave into planar wave is better, the uniformity of the microwave entering the cooking cavity 11 is further improved, the quality of food cooking is further improved, and the use experience of a user is further improved.

In the invention, the wave-transmitting part 23 is in a rectangular strip structure, so that the effect of converting spherical waves into plane waves is further improved, and the uniformity of microwaves entering the cooking cavity 11 is further improved.

In other embodiments, the wave-transparent structure is circular, triangular or other polygonal shapes, and the shape of the wave-transparent structure is adjusted to further meet the requirements of different cooking devices for the form of microwaves entering the cooking cavity 11.

Further, as shown in fig. 1 to 4, the number of the wave-transmitting portions 23 is plural, and the wave-transmitting portions 23 are provided at intervals on the plate-like member 20. Specifically, when the radiation device 50 transmits the microwave generated by the microwave generating device 30 to the plate-shaped member 20, the microwave can enter the cooking cavity 11 through each wave-transmitting portion 23, so as to improve the intensity of the microwave entering the cooking cavity 11, further improve the cooking efficiency of the food in the cooking cavity 11, reduce the waiting time of the user, and further improve the use experience of the user. In addition, by arranging the wave-transmitting parts 23 on the plate-shaped member 20 at intervals, after the microwaves enter the cooking cavity 11 through the wave-transmitting parts 23, the uniformity of the microwaves in the cooking cavity 11 is further ensured, and the heating cooking effect of the food is further improved.

It should be noted that the plate-like member 20 forms part of the cooking cavity 11, the side of the plate-like member 20 facing the cooking cavity 11 forms the inner wall surface of the cooking cavity 11, and the wave-transmitting portions 23 are distributed according to the intensity of the microwaves passing through the plate-like member, i.e. the number of the wave-transmitting portions 23 is reduced at the position where the intensity of the microwaves is high, and the number of the wave-transmitting portions 23 is increased at the position where the intensity of the microwaves is low, so as to further ensure the uniformity of the microwaves entering the cooking cavity 11, and to make the microwave heating effect of the food better.

In some embodiments, as shown in fig. 1 to 3, the plate-shaped member 20 includes a substrate portion 21 and a plurality of strip portions 22, the substrate portion 21 is of a wave-transmitting structure, the strip portions 22 are of a non-wave-transmitting structure and are provided in a plurality, each strip portion 22 is disposed on the substrate portion 21 at intervals, and a wave-transmitting portion 23 is formed between two adjacent strip portions 22. Specifically, the base plate portion 21 forms part of the cooking cavity 11, the plurality of strip portions 22 are arranged on the base plate portion 21 at intervals, when the radiation device 50 transmits the microwave generated by the microwave generation device 30 to the plate-shaped member 20, the microwave can pass through the body of the base plate portion 21 between two adjacent strip portions 22 and enter the cooking cavity 11, and when the microwave passes through the body between two adjacent strip portions 22, the transmission form of the microwave is converted into a plane wave, so that the uniformity entering the cooking cavity 11 is better, and the cooking effect of food is better. In addition, the plate-shaped member 20 has a simple structure and a low manufacturing cost, and the manufacturing cost of the microwave cooking apparatus 100 is effectively reduced.

It should be understood that the strip portion 22 is a non-wave-transparent structure, i.e. a wave-blocking material, and when the microwave propagates to the strip portion 22, the strip portion 22 prevents the microwave from propagating through the position of the strip portion 22 in the cooking cavity 11, so as to effectively ensure the conversion effect on the propagation mode of the microwave, and further ensure the uniformity of the microwave entering the cooking cavity 11.

It should be noted that, as shown in fig. 2 and 3, in the present invention, the plurality of strip portions 22 are arranged in parallel and at intervals on the base plate portion 21, so that a plurality of wave-transmitting portions 23 parallel to each other are formed on the base plate portion 21, the base plate portion 21 forms part of the cooking cavity 11, the area of the wave-transmitting portion 23 covering the cooking cavity 11 is increased, and the uniformity of entering into the cooking cavity 11 is further improved.

In addition, the strap portion 22 is coupled to the base plate portion 21 by means of bonding, welding, or the like, so that the connection strength between the strap portion 22 and the base plate portion 21 is ensured, and the conversion effect of the plate-shaped member 20 to the microwave propagation mode is further improved.

In addition, each strip portion 22 has a rectangular structure, and the size (width) may be the same or different, the width of the strip portion 22 is adjusted to adjust the amplitude of the microwave, and the position of the strip portion 22 is adjusted to adjust the phase of the microwave, so that the microwave entering the cooking cavity 11 is more uniform and stable, and the quality and effect of the food heating and cooking are improved.

Further, as shown in fig. 2 and 3, one end of the strip portion 22 is aligned with one side of the substrate portion 21, and the other end of the strip portion 22 is aligned with the other side of the substrate portion 21. Specifically, the strip portions 22 are provided across the entire base plate portion 21 so that the wave-transmitting portion 23 formed between the adjacent two strip portions 22 extends across the entire base plate portion 21, and the base plate portion 21 constitutes part of the cooking chamber 11, and when the microwaves from the radiation device 50 enter the cooking chamber 11 through the wave-transmitting portion 23, the amount of the microwaves entering the cooking chamber 11 is increased, so that the density of the microwaves in the cooking chamber 11 is greater, thereby improving the efficiency of cooking.

It will be appreciated that, since the wave-transmitting portion 23 formed between two adjacent strip portions 22 spans the entire base plate portion 21, the area of the wave-transmitting portion 23 covering the cooking chamber 11 is increased, and the uniformity of the penetration into the cooking chamber 11 is further improved.

Specifically, the strap portion 22 is a metal piece. The strip parts 22 of the metal part have good wave blocking effect, so that the microwave is only transmitted into the cooking cavity 11 from the wave transmitting parts 23 formed by two adjacent strip parts 22, the effect of converting the microwave from spherical wave to plane wave by the plate-shaped part 20 is further improved, and the uniformity of the microwave entering the cooking cavity 11 is further improved.

In another embodiment, the band portion 22 is made of ceramic, which can reduce the manufacturing cost of the product.

In some embodiments, as shown in fig. 1 and 4, the wave-transmitting portion 23 is a groove-like structure formed on the plate-like member 20. Specifically, the plate-shaped member 20 is a wave-transparent member, the plate-shaped member 20 is set to have a certain thickness, so that the microwave is blocked, and the plate-shaped member 20 is provided with a groove-shaped structure, so that the thickness of the plate-shaped member 20 is reduced, so that the microwave can be transmitted into the cooking cavity 11 through the position of the groove-shaped structure, so as to achieve the heating cooking of food. By forming the wave-transmitting portion 23 by forming a groove-like structure in the plate-like member 20, the structure of the plate-like member 20 is further simplified, so that the manufacturing cost of the plate-like member 20 is reduced, and the manufacturing cost of the microwave cooking apparatus 100 is reduced.

It should be noted that the cross-sectional shape of the groove-like structure is triangular, rectangular, C-shaped or other polygonal shapes, and the detailed description of the invention is omitted here.

Further, one end of the groove-like structure penetrates one side of the plate-like member 20, and the other end of the groove-like structure penetrates the other side of the plate-like member 20. Specifically, the groove-like structure is provided across the entire plate-like member 20 such that the wave-transmitting portion 23 extends across the entire plate-like member 20, and the plate-like member 20 constitutes part of the cooking chamber 11, and when the microwaves from the radiation device 50 enter the cooking chamber 11 through the wave-transmitting portion 23, the amount of the microwaves entering the cooking chamber 11 is increased, so that the density of the microwaves in the cooking chamber 11 is greater, thereby improving the efficiency of cooking.

It will be appreciated that, since the channel-like structure spans the entire plate 20, the area of the wave-transmitting portion 23 covering the cooking chamber 11 is increased, further improving the uniformity of entry into the cooking chamber 11.

Specifically, as shown in fig. 4, the number of the groove-like structures is plural, and the groove-like structures are provided at intervals on the plate-like member 20. The plurality of groove-shaped structures are arranged on the plate-shaped member 20 at intervals in parallel, so that a plurality of wave-transmitting parts 23 which are parallel to each other are formed on the plate-shaped member 20, the plate-shaped member 20 forms part of the cooking cavity 11, the area of the wave-transmitting parts 23 covering the cooking cavity 11 is increased, and the uniformity of the wave entering the cooking cavity 11 is further improved.

Further, the plate 20 is located at the bottom of the cooking chamber 11. Specifically, as shown in fig. 1, in the present invention, the plate-shaped member 20 forms the entire bottom surface of the cooking cavity 11, that is, the plate-shaped member 20 is the bottom plate of the cooking cavity 11, and by the structure and the arrangement manner of the plate-shaped member 20, the intensity of the microwave entering the cooking cavity 11 is further improved, and the microwave entering the cooking cavity 11 in the form of a plane wave is ensured, so that the uniformity of the microwave in the cooking cavity 11 is further ensured.

Further, as shown in fig. 1, the microwave cooking apparatus 100 further includes a transmission device 40, the transmission device 40 is disposed in the box 10 and is used for transmitting microwaves, and the transmission device 40 is disposed in the box 10 and is used for transmitting the microwaves generated by the microwave generating device 30 to the radiation device 50. Specifically, in the present invention, the box 10 includes an outer shell and an inner cavity, the outer shell is disposed at an interval outside the inner cavity, and a receiving space is formed between the outer shell and the inner cavity, the receiving space is located at one side of the inner cavity of the box 10 and extends to the bottom of the inner cavity, the receiving space is used for installing the microwave generating device 30 and the transmitting device 40, the plate 20 is a bottom plate of the inner cavity and forms a bottom surface of the inner cavity, the radiating device 50 is disposed in the installing space, and the radiating device 50 is disposed corresponding to the plate 20, the microwave generating device 30 is located at a side direction of the inner cavity, one end of the transmitting device 40 is connected to the microwave generating device 30, the other end of the transmitting device 40 is connected to the radiating device 50, the microwave generating device 30 starts to generate microwaves, the microwaves reach the radiating device 50 through the transmitting device 40, the radiating device 50 transmits the microwaves to the plate 20 in a spherical wave form, after the microwave passes through the wave-transmitting part 23 of the plate-shaped member 20, the spherical wave is converted into the plane wave, so that the microwave is transmitted into the cooking cavity 11 in the form of the plane wave, the microwave entering the cooking cavity 11 is more uniform and stable, the cooking quality of the microwave cooking device 100 for food is further ensured, and the use experience of a user is effectively improved.

It should be noted that, as shown in fig. 1, the microwave cooking apparatus 100 further includes a control device 60, and the control device 60 is disposed in the box 10 and connected to the microwave generating device 30. When food needs to be cooked, a user places the food to be cooked in the cooking cavity 11 of the box 10, the microwave generating device 30 is started and generates microwaves through the operation and control device 60, the microwaves are transmitted to the radiation device 50 through the transmission device 40, the radiation device 50 transmits the microwaves to the plate-shaped member 20 in the form of spherical waves, and after the microwaves pass through the wave-transmitting part 23 of the plate-shaped member 20, the spherical waves are converted into plane waves, so that the microwaves are transmitted into the cooking cavity 11 in the form of plane waves to achieve heating and cooking of the food to be cooked. By arranging the control device 60, the convenience of man-machine interaction in the use process of a user is improved, and the use experience of the user is effectively improved.

In addition, the microwave generating device 30 includes a magnetron for generating microwaves and a heat sink for heat dissipation of the magnetron. When food needs to be cooked, a user operates the control device 60 to start the magnetron, the magnetron is powered on to generate microwaves, the heat dissipation member dissipates heat from the magnetron, and the microwaves enter the cooking cavity 11 through the transmission device 40, the radiation device 50 and the wave-transmitting part 23 of the plate-shaped member 20, so that the food in the cooking cavity 11 is heated by the microwaves. The heat dissipation operation of the magnetron is realized by using the heat dissipation part, so that the stable and efficient operation of the magnetron is ensured, and the failure rate of the microwave cooking device is reduced. The heat dissipation part is a heat dissipation fan, and the heat dissipation fan rotates by electrifying the heat dissipation fan, so that the heat transfer on the surface of the magnetron is accelerated, and the temperature rise on the surface of the magnetron is reduced.

Further, the transmission device 40 is a waveguide or a coaxial line. Specifically, as shown in fig. 1, in the present invention, the transmission device 40 is a waveguide, one end of the waveguide is matched with the microwave generating device 30, the other end of the waveguide is matched with the radiation device 50, and the microwave generated by the microwave generating device 30 propagates along the waveguide to the radiation device 50 and enters the cooking cavity 11 through the wave-transparent part 23 of the plate-shaped member 20. The waveguide has a simple structure and a low manufacturing cost, and effectively reduces the manufacturing cost of the microwave cooking apparatus 100.

In other embodiments, the transmission device 40 is a coaxial line, which is small in volume and convenient to arrange and install, thereby reducing the space occupied by installation and facilitating the miniaturized production of the microwave cooking apparatus 100.

Specifically, the radiation unit is any one of a slot antenna, a patch antenna, a horn antenna, or a dipole antenna. As shown in fig. 1, in the present invention, the radiation unit is a horn antenna, and when the microwave propagates to the horn antenna through the transmission device 40, the microwave propagates to the plate 20 in the form of a spherical wave under the action of the horn antenna. By using the horn antenna, the conversion effect of the spherical wave is ensured, so that the uniformity of the microwave entering the cooking cavity 11 through the wave-transmitting part 23 is further improved.

In other embodiments, the radiating element is any one of a slot antenna, a patch antenna, or a dipole antenna, thereby further satisfying the assembly requirements of the microwave cooking apparatus 100.

In addition, the microwave cooking device is a microwave oven, and other structures of the microwave cooking device are not described herein again with reference to the prior art.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A microwave cooking apparatus, characterized in that the microwave cooking apparatus comprises:

2. Microwave cooking apparatus according to claim 1, characterised in that the wave-transparent portion is of rectangular configuration.

3. The microwave cooking apparatus according to claim 1, wherein the number of the wave-transmitting portions is plural, and the wave-transmitting portions are provided at intervals on the plate-like member.

4. Microwave cooking apparatus according to claim 1, characterized in that said plate comprises:

a substrate portion having a wave-transmitting structure;

5. A microwave cooking apparatus according to claim 4, wherein one end of the strap portion is aligned with one side of the base plate portion and the other end of the strap portion is aligned with the other side of the base plate portion;

and/or the strap portion is a metallic piece.

6. Microwave cooking apparatus according to claim 1, characterised in that the wave-transparent portion is a trough-like structure formed on the plate-like member.

7. A microwave cooking apparatus according to claim 6 wherein one end of the slot-like structure is through one side of the plate and the other end of the slot-like structure is through the other side of the plate;

8. Microwave cooking apparatus according to claim 1, characterized in that the plate is located at the bottom of the cooking cavity.

9. The microwave cooking apparatus according to any one of claims 1 to 8, further comprising a transmission device provided in the cabinet and configured to transmit the microwaves generated by the microwave generating device to the radiating device.

10. Microwave cooking device according to claim 9, characterized in that the transmission means is a waveguide or a coaxial line;