CN216702329U - Cooking utensil - Google Patents

Abstract

The application relates to the technical field of kitchen utensils and discloses a cooking utensil. The cooking appliance comprises a box body, a cooking cavity and a cooking cavity, wherein the box body is provided with a containing space capable of containing food to be cooked; the food tray is arranged in the accommodating space and divides the accommodating space into first spaces; the radio frequency emission module is arranged in the first space and emits radio frequency waves of the cookable food, and the radio frequency waves form a standing wave field in the first space; the measuring system is arranged on the side wall of the first space and used for detecting the distribution of the standing wave field in the first space; and the control part is used for adjusting the radio frequency waves transmitted by the radio frequency transmitting module according to the measuring result measured by the measuring system. The measuring system is arranged on the side wall of the first space, the distribution of the standing wave field in the first space is detected, the control part adjusts the radio frequency wave emitted by the radio frequency emitting module according to the measuring result of the measuring system, so that the field intensity in the first space is uniformly distributed all the time, the uniformity of heating food is ensured, and the heating effect is improved.

Description

Cooking utensil

Technical Field

The present application relates to the technical field of kitchen appliances, for example to a cooking appliance.

Background

Most of the traditional cooking appliances adopt heating pipes or microwaves to heat food, and with the increasing maturity of radio frequency technology, part of the cooking appliances adopt radio frequency heating.

At present, a part of cooking appliances adopt radio frequency heating, and a radio frequency emitting module is arranged in a cavity to emit radio frequency waves to heat food.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the radio frequency waves emitted by the radio frequency emission module form a standing wave field, but the distribution of the standing wave field is difficult to measure.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a cooking appliance capable of detecting field intensity distribution of a standing wave field.

In some embodiments, the cooking appliance comprises: a box body provided with a containing space for containing food to be cooked; the food tray is arranged in the accommodating space and divides the accommodating space into first spaces; the radio frequency emission module is arranged in the first space and emits radio frequency waves of the cookable food, and the radio frequency waves form a standing wave field in the first space; the measuring system is arranged on the side wall of the first space and used for detecting the distribution of the standing wave field in the first space; and the control part is used for adjusting the radio frequency waves emitted by the radio frequency emission module according to the measurement result measured by the measurement system.

Cooking appliances include, but are not limited to, ovens and microwave ovens, and in the case of an oven, an oven includes a case body provided with a receiving space in which food to be cooked is received, and a cover body, i.e., a front panel of the case body. The food tray is horizontally placed in the accommodating space, the accommodating space is divided into an upper space and a lower space by taking the food tray as a boundary, and the first space refers to the space above the food tray. The radio frequency emission module is arranged in the first space, and emits radio frequency waves to the first space through the radio frequency emission module so as to heat food on the food tray, after the radio frequency emission module emits the radio frequency waves to the first space, the radio frequency waves can form a standing wave field in the first space, and if the field intensity of the standing wave field is larger, the power is larger, and the food heating speed is higher; the standing wave field has even field intensity distribution, which can make the food heated evenly, therefore, the distribution of the standing wave field has great influence on the heating effect of the heated food. The cooking utensil among the prior art hardly surveys the distribution of standing wave field in its inner chamber, the cooking utensil that this disclosed embodiment provided sets up measurement system at the lateral wall in first space, detects the distribution of standing wave field in the first space, still is provided with the control part, can adjust the radio frequency wave of radio frequency emission module transmission according to the measuring result of measurement system measurement, makes the field intensity in the cavity distribute evenly all the time, has guaranteed the homogeneity that food is heated, improves the heating effect.

In some embodiments, the measurement system comprises: a transmitter disposed at a first sidewall of the first space to transmit a detection electromagnetic wave for detecting the intensity of the standing wave field; and the receiver is arranged on the second side wall of the first space and used for receiving the detection electromagnetic wave.

In some embodiments, the box body includes a casing and a liner, the receiver is disposed in an interlayer between the casing and the liner, the liner is provided with a receiving hole corresponding to the receiver, and the receiver receives the detected electromagnetic wave passing through the receiving hole.

In some embodiments, the emitter is disposed in an interlayer between the casing and the inner container, the inner container has an emitting hole at a position corresponding to the emitter, and the emitter emits the detection electromagnetic wave through the emitting hole.

In some embodiments, a glass plate is disposed at both the receiving hole and the emitting hole.

In some embodiments, the number of the receivers is plural, and a plurality of the receivers are disposed opposite to the transmitter to receive the detection electromagnetic wave transmitted to different positions of the second sidewall by the transmitter.

In some embodiments, the control portion includes: a standing wave field analysis module configured to determine a distribution of the standing wave field according to the detected electromagnetic wave received by the receiver and a preset algorithm; a radio frequency adjusting module configured to adjust the emission angle or intensity of the radio frequency emitting module according to the distribution.

In some embodiments, the radio frequency transmission module is disposed at a top wall of the first space.

In some embodiments, the cooking appliance further comprises: and the radio frequency absorption coating is coated on the side wall of the first space, absorbs the radio frequency waves and converts electromagnetic energy into heat energy.

In some embodiments, the radio frequency absorbing coating is applied to the left side wall, the right side wall, and the rear side wall of the first space, and the radio frequency absorbing coating is applied to the upper surface of the food tray.

The cooking utensil provided by the embodiment of the disclosure can realize the following technical effects:

the cooking utensil that this disclosed embodiment provided sets up measurement system through the lateral wall in first space, detects the distribution of standing wave field in the first space, and the control part adjusts the radio frequency wave that the radio frequency emission module transmitted according to measurement system measuring result, makes the field intensity in the first space distribute evenly all the time, has guaranteed the homogeneity that food is heated, improves the heating effect.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic view of an overall structure of a cooking appliance provided in an embodiment of the present disclosure;

fig. 2 is a schematic overall structure diagram of another cooking appliance provided by the embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a cooking appliance provided by an embodiment of the present disclosure;

fig. 4 is a schematic cross-sectional view of another cooking appliance provided by the embodiment of the present disclosure.

Reference numerals:

10: a box body; 11: a left side wall; 12: a right side wall; 13: a rear sidewall; 14: a top wall; 15: an arcuate sidewall; 16: a first space; 20: a radio frequency transmission module; 21: a first transmitting end; 22: a second transmitting end; 30: a food tray; 40: a shielding baffle; 50: a cover body; 61: a transmitter; 62: a receiver.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure may be understood as specific cases by those of ordinary skill in the art.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 1 to 4, an embodiment of the present disclosure provides a cooking appliance, including a cabinet 10 having a receiving space for receiving food to be cooked; a food tray 30 disposed in the accommodating space to partition the accommodating space into first spaces 16; the radio frequency emission module 20 is arranged in the first space 16 and emits radio frequency waves of the cookable food, and the radio frequency waves form a standing wave field in the first space 16; a measurement system disposed on a sidewall of the first space 16 for detecting a distribution of the standing wave field in the first space 16; and a control part for adjusting the radio frequency wave emitted by the radio frequency emission module 20 according to the measurement result measured by the measurement system.

The cooking appliance includes, but is not limited to, an oven including a case body 10 provided with a receiving space in which food to be cooked is received, and a cover 50, i.e., a front panel of the case body 10, and a microwave oven, for example. The food tray 30 is horizontally disposed in the accommodating space, and the accommodating space is divided into an upper space and a lower space by taking the food tray 30 as a boundary, where the first space 16 refers to a space above the food tray 30. The radio frequency emission module 20 is arranged in the first space 16, and emits radio frequency waves to the first space 16 through the radio frequency emission module 20 so as to heat food on the food tray 30, after the radio frequency emission module 20 emits the radio frequency waves to the first space 16, the radio frequency waves form a standing wave field in the first space 16, and if the field intensity of the standing wave field is larger, the power is larger, and the speed of heating the food is faster; the standing wave field has even field intensity distribution, which can make the food heated evenly, therefore, the distribution of the standing wave field has great influence on the heating effect of the heated food. The cooking utensil among the prior art hardly surveys the distribution of standing wave field in its inner chamber, the cooking utensil that this embodiment of this disclosure provided sets up measurement system at the lateral wall in first space 16, detects the distribution of standing wave field in first space 16, still is provided with the control part, can adjust the radio frequency wave that radio frequency emission module 20 emitted according to the measuring result of measurement system measurement, makes the field intensity in the cavity distribute evenly all the time, has guaranteed the homogeneity that food is heated, improves the heating effect.

Alternatively, the measuring system includes an emitter 61 disposed at the first sidewall of the first space 16 to emit a detection electromagnetic wave for detecting the standing wave field intensity; the receiver 62 is disposed on the second sidewall of the first space 16 for receiving the detection electromagnetic wave.

The emitter 61 is disposed on a first sidewall of the first space 16, the receiver 62 is disposed on a second sidewall of the first space 16, the first sidewall and the second sidewall may be opposite or adjacent to each other, as long as it is ensured that the receiver 62 can receive the detection electromagnetic wave emitted by the emitter 61 and used for detecting the standing wave field intensity, and the specific disposition position is not limited herein. The radio frequency emission module 20 emits radio frequency waves to form a standing wave field in the first space 16, the emitter 61 emits detection electromagnetic waves to be superposed with the radio frequency waves, the field intensity change of the standing wave field can cause the change of the detection electromagnetic waves, and the detection electromagnetic waves passing through the standing wave field are received by the receiver 62 to further detect the field intensity distribution condition of the standing wave field.

Alternatively, the transmitter 61 is disposed at a position opposite to the position at which the receiver 62 is disposed, and the emission direction of the detection electromagnetic wave intersects with the emission direction of the radio frequency wave.

The distribution of field intensity can be detected more intuitively by detecting the intersection of the emission direction of the electromagnetic waves and the emission direction of the radio frequency waves, and the arrangement position of the emitter 61 is opposite to that of the receiver 62, so that the receiver 62 can receive and detect the electromagnetic waves more conveniently, and the detection accuracy is improved.

Optionally, the container body 10 includes a housing and an inner container, the receiver 62 is disposed in an interlayer between the housing and the inner container, a receiving hole is opened in a position of the inner container corresponding to the receiver 62, and the receiver 62 receives the detected electromagnetic wave passing through the receiving hole.

Cooking utensil is when heating food, and the high temperature of accommodation space can influence the normal use of receiver 62 and can cause the damage of receiver 62 even, sets up receiver 62 in the intermediate layer between casing and the inner bag, can make receiver 62 isolated with high temperature environment like this, guarantees that receiver 62 can normal use. When setting up receiver 62 between casing and inner bag, the inner bag also can completely cut off the detection electromagnetic wave when completely cutting off high temperature environment, and based on this, the receiving hole is seted up to the inner bag corresponding receiver 62's position, and receiver 62 can receive the detection electromagnetic wave through the receiving hole, and like this, also can guarantee receiver 62's normal use under high temperature environment.

Optionally, the emitter 61 is disposed in an interlayer between the casing and the inner container, the inner container is provided with an emitting hole corresponding to the emitter 61, and the emitter 61 emits the detection electromagnetic wave through the emitting hole.

High temperature environment can influence receiver 62's normal use and can cause receiver 62's damage even, correspondingly, the normal use that also can influence transmitter 61 can cause transmitter 61's damage even, also set up transmitter 61 in the intermediate layer between casing and the inner bag, and, the launching hole is seted up to the position that the inner bag corresponds transmitter 61, thus, the normal use of transmitter 61 can also be guaranteed under high temperature environment, make transmitter 61 can detect the electromagnetic wave through the launching hole transmission, receiver 62 receives the detection electromagnetic wave through the receiving hole, and then realize detecting the field intensity distribution of standing wave field.

Optionally, a glass plate is disposed at each of the receiving hole and the emitting hole.

When the cooking utensil heats food, oil stains are inevitably splashed, and the glass plates are arranged at the receiving hole and the transmitting hole, so that the receiver 62 and the transmitter 61 are effectively prevented from being polluted by the oil stains. Because the material of the glass plate can not shield or influence the emission of the detection electromagnetic wave, the glass plate can be arranged to effectively improve the detection accuracy.

Alternatively, the number of the receivers 62 is plural, and the plural receivers 62 are disposed opposite to the transmitter 61 to receive the detection electromagnetic wave transmitted to different positions of the second sidewall by the transmitter 61.

The detection electromagnetic wave of transmitter 61 transmission can be for vertical distribution, also can be for fan-shaped distribution, when the transmission direction of the detection electromagnetic wave of transmission formed fan-shaped distribution, only set up a receiver 62 and only can receive partial detection electromagnetic wave, relative position at transmitter 61 sets up a plurality of receivers 62, can receive the detection electromagnetic wave of the different positions that transmitter 61 transmitted the second lateral wall, the waste of having avoided detecting the electromagnetic wave, can improve the receiving quantity who receives the detection electromagnetic wave, and then improve the accuracy nature of detection field intensity distribution.

Optionally, the control part comprises a standing wave field analysis module configured to determine the distribution of the standing wave field according to the detected electromagnetic wave received by the receiver 62 and a preset algorithm; and the radio frequency adjusting module is configured to adjust the emission angle or intensity of the radio frequency emission module 20 according to the distribution situation.

The field intensity distribution of the standing wave field changes to cause the change of the detected electromagnetic waves, the receiver 62 receives the detected electromagnetic waves passing through the standing wave field, the standing wave field analysis module determines the distribution condition of the standing wave field through a preset algorithm according to the detected electromagnetic waves received by the receiver 62, for example, whether the field intensity distribution is uniform, the power and the like, the radio frequency adjustment module adjusts the emission angle of the radio frequency module or the intensity of the emitted radio frequency waves according to the determined distribution condition of the standing wave field, for example, the shape or the thickness of food can cause the uneven distribution of the radio frequency waves, so that the heating uniformity of the food is influenced, and when the field intensity distribution is detected to be uneven, the radio frequency adjustment module timely adjusts the emission angle of the radio frequency emission module 20, so that the radio frequency waves are uniformly emitted to the food, the food is effectively prevented from being heated unevenly, and the taste is further influenced. When the field intensity of the standing wave field is larger, the power is larger, and the heating rate is higher, in the same time, the food with the same thickness is heated by the same power, so that the food with the thicker thickness cannot be completely heated, or the food with the thinner thickness is excessively heated, therefore, when the field intensity of the standing wave field is detected to be larger, the radio frequency adjusting module adjusts the radio frequency emitting module 20 to weaken the intensity of the emitted radio frequency wave, namely, the frequency of the emitted radio frequency wave is reduced; when the field intensity of the standing wave field is detected to be smaller, the radio frequency adjusting module adjusts the radio frequency transmitting module 20 to increase the intensity of the transmitted radio frequency wave, that is, to increase the frequency of the transmitted radio frequency wave. In this way, a suitable power is always maintained, even if the first space 16 is always maintained in a suitable heating environment, so that the food maintains an optimal taste.

Optionally, a radio frequency transmission module 20 is arranged at the top wall 14 of the first space 16.

If the rf transmitting module 20 is disposed on the left sidewall 11, the right sidewall 12, or the rear sidewall 13 of the first space 16, it is not guaranteed that the transmitted rf waves can be transmitted to all the food to be heated, and further the uniformity of the heated food can not be guaranteed, in this case, in order to guarantee the uniformity of the heated food, the rf transmitting module 20 is inevitably disposed on the opposite or adjacent sidewall, so that the transmitted rf waves are directly transmitted to the adjacent or opposite rf transmitting module 20, and further the rf transmitting module 20 is damaged, thereby affecting the normal use of the user. The top wall 14 of the first space 16 is provided with the rf transmitting module 20, and the rf transmitting module 20 can transmit the rf waves to the food without hindrance, so that the food placed on the food tray 30 can be uniformly heated, the taste of the food is effectively guaranteed, and the heating time can be greatly shortened.

Optionally, the radio frequency transmitting module 20 includes a first transmitting end 21 and a second transmitting end 22 arranged at an interval, a shielding baffle 40 is arranged between the first transmitting end 21 and the second transmitting end 22, and the shielding baffle 40 prevents radio frequency from being emitted to the first transmitting end 21 and the second transmitting end 22.

Through setting up two transmitting terminal transmission radio frequency ripples of first transmitting terminal 21 and second transmitting terminal 22 in order to heat food, the scope of radio frequency ripples transmission has been enlarged, guarantee that the food of placing on the food tray 30 can both receive the radio frequency ripples, when setting up two transmitting terminals, can influence each other during two transmitting terminal simultaneous transmission radio frequency ripples, set up shielding baffle 40 between first transmitting terminal 21 and second transmitting terminal 22, influence each other during avoiding two transmitting terminal simultaneous transmission radio frequency ripples effectively, and then lead to radio frequency emission module 20 to receive the harm.

Alternatively, the first and second emission ends 21 and 22 are spaced apart in the transverse direction of the top wall 14, and the shielding baffle 40 extends in the longitudinal direction of the top wall 14.

First transmitting terminal 21 and second transmitting terminal 22 set up along the horizontal interval of roof 14, can be effectual the emission scope of extension transmission radio frequency wave, when first transmitting terminal 21 and second transmitting terminal 22 set up along the horizontal interval of roof 14, make shielding baffle 40 along the longitudinal extension of roof 14, shielding baffle 40's extension length equals with roof 14's width, optionally, cooking utensil's top lateral wall is the rectangle, has long limit and minor face, the width of roof 14 here is the minor face, transversely is the direction along long limit, longitudinal direction is the direction along the minor face, and like this, can separate first transmitting terminal 21 and second transmitting terminal 22 completely, and then guaranteed the shielding effect.

Optionally, the first emitting end 21 and the second emitting end 22 may also be disposed at intervals along the longitudinal direction of the top wall 14, the shielding baffle 40 extends along the transverse direction of the top wall 14, the positions of the first emitting end 21 and the second emitting end 22 are not specifically limited herein as long as it can ensure that food placed on the food tray 30 can receive radio frequency waves, and the positions of the shielding baffle 40 are not specifically limited herein as long as the first emitting end 21 and the second emitting end 22 can be completely separated, and the specific positions are not specifically limited herein.

Optionally, the cooking appliance further comprises a radio frequency absorbing coating applied to the side walls of the first space 16, absorbing radio frequency waves and converting electromagnetic energy into heat energy.

The radio frequency emission module 20 is disposed on the top wall 14 of the first space 16, and emits radio frequency waves to the first space 16 through the radio frequency emission module 20 to heat food on the food tray 30, when the radio frequency emission module 20 emits radio frequency waves, most of the radio frequency waves are directly emitted to the food on the food tray 30 and then absorbed by the food to heat the food, but some of the radio frequency waves are inevitably emitted to the side wall of the first space 16, and the radio frequency waves are returned to the radio frequency emission module 20 by reflection of the side wall, which not only causes waste of the radio frequency waves and damage of the radio frequency emission module 20, but also coats the side wall of the first space 16 with a radio frequency absorption coating, so that the radio frequency waves emitted to the side wall are absorbed by the radio frequency absorption coating to effectively reduce reflection of the radio frequency waves to the radio frequency emission module 20 and further reduce damage to the radio frequency emission module 20, meanwhile, after absorbing the radio frequency waves, the radio frequency absorption coating can convert electromagnetic energy into heat energy, effectively utilizes the wasted radio frequency waves, and provides heat for heating food, so that the heating efficiency of the oven for heating the food is improved. Food tray 30 separates the inside accommodation space of box 10 for two spaces from top to bottom, and the food of treating the culinary art is placed in food tray 30's top, and RF emission module 20 sets up the food on first space 16 is to food tray 30 and heats, because food tray 30's separation, the below of food tray 30 can not launched to the radio frequency wave, and then only sets up the radio frequency absorption coating at 16 lateral walls in first space, can save the cost. And radio frequency is absorbed by coating the radio frequency absorbing coating, so that the mode is simple and the cooking utensil is convenient to process.

Alternatively, the radio frequency absorbing coating is applied to the left side wall 11, the right side wall 12 and the rear side wall 13 of the first space 16, and the radio frequency absorbing coating is applied to the upper surface of the food tray 30.

The rf transmitting module 20 disposed on the top wall 14 of the first space 16, when transmitting rf waves downward, in order to ensure that food in the food tray 30 can be heated, the area of the transmitting range of the rf waves needs to be greater than or equal to the area of the food tray 30, which results in that the rf transmitting module 20 inevitably transmits rf waves to the left side wall 11, the right side wall 12 and the rear side wall 13, or the heated food is not enough to completely cover the food tray 30, the rf waves are directly transmitted to the surface of the food tray 30, and the rf waves are reflected to the left side wall 11, the right side wall 12 and the rear side wall 13 by the reflection of the food tray 30. This not only wastes rf waves, but also damages the rf transmitting module 20 if the rf waves are reflected to the rf transmitting module 20. In this case, the rf absorbing coating is coated on the left side wall 11, the right side wall 12, the rear side wall 13 of the first space 16 and the upper surface of the food tray 30, so as to absorb the rf waves emitted or reflected to the left side wall 11, the right side wall 12, the rear side wall 13 of the first space 16 and the upper surface of the food tray 30, and further convert the electromagnetic energy into heat energy, and the converted heat energy heats the food.

Alternatively, the thickness of the radio frequency absorbing coating on the upper surface of the food tray 30 is d1, the thickness of the radio frequency absorbing coating on the left and right side walls 11 and 12 is d2, the thickness of the radio frequency absorbing coating on the rear side wall 13 is d3, and d1 < d3 < d 2.

Because first transmitting terminal 21 and second transmitting terminal 22 set up along the horizontal interval of roof 14, and then respectively with left side wall 11 and right side wall 12 the distance is nearer, when first transmitting terminal 21 and second transmitting terminal 22 transmitted the radio frequency wave, the influence that receives the radio frequency wave of left side wall 11 and right side wall 12 that the distance is nearer is great relatively, and food tray 30 is when using, because food that the upper surface of food tray 30 placed and is waited to heat, the radio frequency wave can not directly be launched the upper surface of food tray 30, and then the influence that the upper surface of food tray 30 received the radio frequency wave is less. In this case, the thickness of the rf absorbing coating of the left and right side walls 11 and 12 is greater than the thickness of the rf absorbing coating of the upper surface of the food tray 30. Compared with the left side wall 11 and the right side wall 12, the influence of the radio frequency waves on the rear side wall 13 is obviously smaller than the influence of the radio frequency waves on the left side wall 11 and the right side wall 12, and because the food to be heated is placed on the upper surface of the food tray 30, the radio frequency waves are not directly emitted to the upper surface of the food tray 30, so that the influence of the radio frequency waves on the rear side wall 13 is obviously larger than the influence of the radio frequency waves on the upper surface of the food tray 30, and the influence of the radio frequency waves on the left side wall 11 and the right side wall 12 is larger than the influence of the radio frequency waves on the rear side wall 13 than the influence of the radio frequency waves on the upper surface of the food tray 30. Based on this, the thickness of the radio frequency absorbing coating of the left side wall 11 and the right side wall 12 is greater than the thickness of the radio frequency absorbing coating of the rear side wall 13 and is greater than the thickness of the radio frequency absorbing coating of the upper surface of the food tray 30, and the radio frequency absorbing coatings with different thicknesses are arranged aiming at different areas, so that the radio frequency absorbing coating can be saved while the radio frequency waves can be effectively absorbed, and further the cost can be saved.

Optionally, the left side wall 11 and the right side wall 12 of the first space 16 are connected with the top wall 14 through an arc-shaped side wall 15, and the arc-shaped side wall 15 is provided with a radio frequency absorption module.

In this way, smooth and flat side walls are formed between the left side wall 11 and the right side wall 12 of the first space 16 and the top wall 14 through the connection of the arc-shaped side walls 15, and the corners are smooth and round through the arc-shaped side walls 15, so that ignition caused by radio frequency wave gathering is effectively avoided.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A cooking appliance, comprising:

a box body provided with a containing space for containing food to be cooked;

the food tray is arranged in the accommodating space and divides the accommodating space into first spaces;

the radio frequency transmitting module is arranged in the first space and is used for transmitting radio frequency waves of cookable food, and the radio frequency waves form a standing wave field in the first space;

the measuring system is arranged on the side wall of the first space and used for detecting the distribution of the standing wave field in the first space;

and the control part is used for adjusting the radio frequency waves transmitted by the radio frequency transmitting module according to the measuring result measured by the measuring system.

2. The cooking appliance of claim 1, wherein the measurement system comprises:

a transmitter disposed at a first sidewall of the first space to transmit a detection electromagnetic wave for detecting the intensity of the standing wave field;

and the receiver is arranged on the second side wall of the first space and used for receiving the detection electromagnetic wave.

3. The cooking appliance of claim 2,

the box body comprises a shell and an inner container,

the receiver is arranged on the interlayer between the shell and the inner container,

and a receiving hole is formed in the position, corresponding to the receiver, of the inner container, and the receiver receives the detection electromagnetic waves passing through the receiving hole.

4. The cooking appliance of claim 3,

the emitter is arranged on the interlayer between the shell and the inner container,

the inner container is provided with a transmitting hole corresponding to the position of the transmitter, and the transmitter transmits the detection electromagnetic wave through the transmitting hole.

5. The cooking appliance of claim 4,

and glass plates are arranged at the receiving holes and the emitting holes.

6. The cooking appliance of claim 2,

the number of the receivers is multiple, and the multiple receivers are arranged opposite to the transmitter so as to receive the detection electromagnetic waves transmitted to different positions of the second side wall by the transmitter.

7. The cooking appliance according to claim 2, wherein the control portion comprises:

a standing wave field analysis module configured to determine a distribution of the standing wave field according to the detected electromagnetic wave received by the receiver and a preset algorithm;

a radio frequency adjusting module configured to adjust the emission angle or intensity of the radio frequency emitting module according to the distribution.

8. The cooking appliance of claim 1,

the radio frequency emission module is arranged on the top wall of the first space.

9. The cooking appliance according to any one of claims 1 to 8, further comprising:

and the radio frequency absorption coating is coated on the side wall of the first space, absorbs the radio frequency waves and converts electromagnetic energy into heat energy.

10. The cooking appliance of claim 9,

the radio frequency absorbing coating is coated on the left side wall, the right side wall and the rear side wall of the first space,

and, the radio frequency absorbing coating is applied to the upper surface of the food tray.

Images