Microwave cooking equipment

Abstract

The utility model discloses microwave cooking equipment, which comprises a cavity, a microwave heating device and a microwave heating device, the sensing device is used for outputting a first sensing signal when a first baking tool is placed in the cooking cavity; the control device is electrically connected with the induction device and is used for outputting a first control signal when receiving the first induction signal; and the microwave generating device is electrically connected with the control device and is used for not working when receiving the first control signal. According to the microwave cooking equipment, the defects in the prior art can be effectively overcome.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a microwave cooking device. Background Art

[0002] Microwave cooking equipment such as steam ovens and microwave ovens, when using the microwave function, microwaves are emitted from the exit surface or reflected through the cavity to cook the ingredients placed on the baking utensils in microwaves, making the food look, smell and taste good, and therefore widely loved by consumers.

[0003] However, the microwave cooking devices of the prior art are prone to uneven cooking of food in the cavity, low microwave efficiency, and ignition in the cavity when the microwave is working, and may even cause safety problems. Utility Model Content

[0004] The present application provides a microwave cooking device, aiming to at least improve the technical problems existing in the prior art.

[0005] In accordance with the above objectives, the present application provides a microwave cooking device, comprising:

[0006] a cavity body, wherein a cooking cavity is formed;

[0007] a sensing device configured to output a first sensing signal when a first baking utensil is placed in the cooking cavity;

[0008] a control device electrically connected to the sensing device, configured to output a first control signal upon receiving the first sensing signal;

[0009] a microwave generating device, electrically connected to the control device, and configured to stop operating upon receiving the first control signal;

[0010] The microwave generating device emits microwaves into the cooking cavity to form a microwave heating space in the cooking cavity; when a first baking utensil is placed in the cooking cavity, the volume of the microwave heating space changes.

[0011] Compared with the prior art, the present application sets up a sensing device, which outputs a first sensing signal to the control device when a first baking utensil is placed in the cooking cavity. The control device can output a first control signal based on the first sensing information, thereby controlling the microwave emitting device to not work, effectively reducing uneven cooking, low microwave efficiency, and the occurrence of ignition in the cavity.

[0012] In some embodiments, the microwave cooking device further includes: an operation panel electrically connected to the control device, for outputting a first operation signal when a first operation is detected; the control device is further configured to output an induction device operating signal according to the first operation signal to control the operation of the induction device.

[0013] In some embodiments, the sensing device includes an infrared transmitter, an infrared receiver and a signal processing module; wherein the infrared transmitter is used to transmit an infrared signal into the cooking cavity; the infrared receiver is used to receive the infrared signal reflected back by the first baking utensil; and the signal processing module is used to output the first sensing signal based on the infrared signal emitted by the infrared transmitter and the infrared signal reflected back by the first baking utensil.

[0014] In some embodiments, the microwave cooking device further includes: a display panel electrically connected to the control device, wherein the control device is further configured to send a first prompt signal while outputting the first control signal; and the display panel displays a reminder message according to the first prompt signal.

[0015] In some embodiments, the first baking utensil is a baking pan.

[0016] In some embodiments, the sensing device is one of an infrared sensor, an ultraviolet sensor, a laser sensor, an acoustic wave sensor, an image sensor, and a visual sensor.

[0017] In some embodiments, the microwave generating device includes a microwave generator and a waveguide tube, and the microwave generator is electrically connected to the control device.

[0018] In some embodiments, the sensing device is further configured to output a second sensing signal when a second baking utensil is placed in the cooking cavity; the control device is further configured to receive the second sensing signal and generate a second control signal upon receiving the second sensing signal; and the microwave generating device is further configured to control the operation of the microwave generating device according to the second control signal.

[0019] In some embodiments, the sensing device includes an infrared transmitter, an infrared receiver, and a signal processing module; wherein the infrared transmitter is used to transmit an infrared signal into the cooking cavity upon receiving a working signal from the sensing device; the infrared receiver is used to receive the infrared signal reflected back from the inner wall of the cooking cavity; and the signal processing module is used to output the second sensing signal based on the infrared signal emitted by the infrared transmitter and the infrared signal reflected back from the inner wall of the cooking cavity.

[0020] In some embodiments, the second baking utensil is a grill or a baking cage.

[0021] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective schematic diagram of a microwave cooking device provided in an exemplary embodiment;

[0023] Figure 2 is a schematic diagram of the working principle of the first baking appliance in an exemplary embodiment;

[0024] Figure 3 is a schematic structural diagram of a microwave cooking device provided in an exemplary embodiment;

[0025] Figure 4 is a schematic structural diagram of a microwave cooking device provided in an exemplary embodiment;

[0026] Figure 5 Schematic diagram of the working principle of the second baking tool in an exemplary embodiment.

[0027] Description of reference numerals:

[0028] 1 cavity, 2 sensing device, 21 infrared transmitter, 22 infrared receiver, 23 signal processing module, 3 control device, 4 microwave generating device, 41 microwave generator, 42 waveguide, 5 first baking utensil, 6 second baking utensil, 7 operation panel, 8 display panel. DETAILED DESCRIPTION

[0029] In order to better illustrate the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0030] It should be clear that the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the embodiments of the present application.

[0031] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present application. The singular forms "a," "the," and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0032] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0033] In addition, in this application, unless otherwise specified, "plurality" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0034] The microwave cooking equipment of the present application is an electrical appliance with microwave cooking function, including microwave ovens, microwave steam ovens, microwave steamers, microwave ovens, cooking centers, integrated stoves, etc.

[0035] The microwave cooking device generally includes a cavity, a door that closes the opening of the cavity, and a microwave generator provided on the cavity. A cooking cavity is formed in the cavity. After the microwaves generated by the microwave generator enter the cooking cavity, the cooking cavity is transformed into a microwave heating space, and the food placed therein is cooked by the microwaves.

[0036] In order to achieve a better cooking effect for the food placed in the cavity, it is necessary to adjust the microwave power so that the microwave power matches the volume of the microwave heating space formed, so that the microwave can cook the food with optimal efficiency in the cooking cavity. At this time, the microwave heating space is equivalent to the volume of the cooking cavity.

[0037] However, when using baking utensils with a larger area, such as baking trays, this type of baking utensils will divide the cooking cavity, making the microwave heating space formed after the microwave enters smaller than the cooking cavity. That is, the volume of the microwave heating space changes, resulting in the microwave power and the volume of the formed microwave heating space no longer matching, which in turn causes ignition in the cavity, uneven heating, low efficiency, and even damage to the microwave equipment, causing safety problems.

[0038] In order to solve this problem, the present application provides a microwave cooking device, which can effectively improve the above problems.

[0039] like Figure 1-3FIG. 1 shows a microwave cooking device according to an exemplary embodiment of the present application, which includes:

[0040] The cavity 1 has a cooking cavity 11 formed therein;

[0041] a sensing device 2, configured to output a first sensing signal when a first baking utensil 5 is placed in the cooking cavity 11;

[0042] a control device 3, electrically connected to the sensing device 2, and configured to output a first control signal upon receiving the first sensing signal;

[0043] The microwave generating device 4 is electrically connected to the control device 3 and is configured to stop working when receiving the first control signal.

[0044] The microwave generating device 4 emits microwaves into the cooking cavity 11 to form a microwave heating space in the cooking cavity 11; when the first baking utensil 5 is placed in the cooking cavity 11, the volume of the microwave heating space changes.

[0045] The microwave cooking device of the embodiment of the present application can output a first sensing signal to the control device 3 through the sensing device 2 when the first baking utensil 5 is placed in the cooking cavity 11. The control device 3 can output a first control signal based on the first sensing information to control the microwave emitting device 4 to not work.

[0046] This avoids problems such as ignition in the cavity, uneven heating, low efficiency, and damage to the microwave equipment caused by the mismatch between the microwave power and the volume of the microwave heating space due to the placement of the first baking tool 5.

[0047] The cooking cavity 11 of the cavity 1 comprises a top wall, a bottom wall, a left wall, a right wall, and a rear wall, with a front opening adapted for a door. Grilling utensils can be placed in the cooking cavity 11 to assist in cooking ingredients. In this embodiment, the grilling utensils include a first grill utensil 5 and a second grill utensil 6. When the first grill utensil 5 is placed in the cooking cavity 11, the cooking cavity 11 is divided by the first grill utensil 5. Preferably, the first grill utensil 5 is a baking pan, and the second grill utensil 6 is a grill or a baking cage. For example, when the first grill utensil 5 is a baking pan, the cooking cavity 11 is divided into an upper space and a lower space. If microwaves enter through the top wall, most of them are reflected by the baking pan, leaving a microwave heating space only in the upper space. It should be noted that the formation of a microwave heating space only in the upper space does not mean that the microwaves are completely confined to the upper space. After the first grill utensil 5 is placed in the cooking cavity 11, some microwaves can still enter the lower space.

[0048] The sensing device 2 is configured to output a first sensing signal when a first baking utensil 5 is placed in the cooking cavity 11 .

[0049] The sensing device 2 is one of an infrared sensor, an ultraviolet sensor, a laser sensor, an acoustic wave sensor, an image sensor, and a visual sensor.

[0050] like Figure 4 As shown, taking the sensing device 2 as an infrared sensor as an example, the infrared sensor includes an infrared transmitter 21 , an infrared receiver 22 and a signal processing module 23 .

[0051] Specifically, the infrared emitter 21 is used to emit an infrared signal into the cooking cavity 11 when receiving the sensing device working signal output by the control device 3.

[0052] When the first grilling utensil 5 is placed in the cooking cavity 11, the infrared signal is emitted and reflected by the first grilling utensil 5. The infrared receiver 22 is configured to receive the infrared signal reflected by the first grilling utensil 5. The signal processing module 23 is configured to output the first sensing signal based on the infrared signal emitted by the infrared transmitter 21 and the infrared signal reflected by the first grilling utensil 5. Specifically, the signal processing module 23 may include an amplifier circuit electrically connected to the infrared receiver 22 and a single-chip microcomputer electrically connected to the amplifier circuit. The single-chip microcomputer is also electrically connected to the infrared transmitter 21.

[0053] It should be noted that the method for the signal processing module 23 to output the first sensing signal based on the infrared signal emitted by the infrared emitter 21 and the infrared signal reflected back by the first baking tool 5 is not within the scope of the present application and can be implemented by existing technologies. For example, in the existing technology, the time taken from the emission of infrared rays to the reception is transmitted to the control device 3 as part of the first sensing signal. At this time, the first sensing signal includes the time taken from the emission of infrared rays to the reception, and the control device 3 then makes a judgment based on the time. For another example, the existing technology can first perform a time threshold judgment on the time taken from the emission of infrared rays to the reception through a signal processing module with a single-chip microcomputer, and then output a high or low level. If the first sensing signal is a high level, it is then connected to the I / O interface or interface circuit of the control device 3 to achieve the output of the first sensing signal.

[0054] The sensing device 2 is further configured to output a second sensing signal when a second baking utensil 6 is placed in the cooking cavity 11 .

[0055] like Figure 5 Specifically, when no grilling utensils are placed in the cooking cavity 11 or a second grilling utensil is placed therein, the infrared signal is reflected by the inner wall of the cooking cavity 11, which is opposite the surface from which the infrared signal was emitted. The infrared receiver 22 is configured to receive the infrared signal reflected by the inner wall of the cooking cavity 11. The signal processing module 23 is configured to output the second sensing signal based on the infrared signal emitted by the infrared transmitter 21 and the infrared signal reflected by the inner wall of the cooking cavity 11.

[0056] Taking the case where the sensing device 2 adopts a visual sensor as an example, the visual sensor can output a corresponding sensing signal through image acquisition and image recognition technology in the prior art.

[0057] Specifically, for example, the visual sensor captures an image of the cooking cavity 11 and uses image recognition technology to determine whether the cavity contains the first or second baking utensil 5 or 6, thereby outputting a corresponding sensing signal. It should be noted that how the visual sensor captures images, performs recognition, and makes these determinations is beyond the scope of this application and can be implemented using existing technologies.

[0058] like Figure 2-4 As shown, the control device 3 is electrically connected to the sensing device 2 and is configured to output a first control signal when receiving the first sensing signal.

[0059] In the embodiment of the present application, the control device 3 may include an MCU and a control circuit. The MCU may also be provided with an AD converter for performing digital-to-analog conversion on the first sensing signal output by the sensing device 2.

[0060] Upon receiving the first sensing signal, the control device 3 processes the first sensing signal and outputs a first control signal. It should be noted that the method by which the control device 3 processes the first sensing signal and outputs the first control signal is not limited to the present application and can be implemented using existing technologies. The control device 3 only needs to be able to receive the first sensing signal and output the first control signal based on the first sensing signal.

[0061] Continuing with the above example, when the control device 3 receives a first sensing signal containing the time elapsed between infrared emission and reception, it can make a comparison based on a preset time threshold. For another example, when the control device 3 receives a high-level first sensing signal, the control circuit of the control device 3 directly triggers the generation of a first control signal. For example, the first control signal can be a shutdown signal.

[0062] The control device 3 is further configured to receive the second sensing signal and generate a second control signal upon receipt of the second sensing signal; the microwave generator 4 is configured to control its operation based on the second control signal. The method for outputting the second control signal is the same as that for outputting the first control signal, and will not be further described here. For example, the first control signal is an on signal.

[0063] The microwave generating device 4 is electrically connected to the control device 3 and is also configured to stop working when receiving the first control signal.

[0064] Specifically, the microwave generating device 4 includes a microwave generator 41 and a waveguide 42. The microwave generator 41 is generally a magnetron, and the microwaves generated by the microwave generator 41 are introduced into the cooking cavity 11 through the waveguide 42. In some embodiments, the microwave generating device 4 also includes a microwave stirrer for stirring the microwaves evenly before they enter the cooking cavity 11. The microwaves generated by the microwave generating device 4 are emitted from the top wall, bottom wall, or side wall of the cooking cavity 11. Preferably, in the microwave cooking device of the present application, the microwaves are emitted from the top wall of the cooking cavity 11. When the microwaves enter the cooking cavity 11, a microwave heating space is formed in the cooking cavity 11. When the first baking utensil 5 is placed in the cooking cavity 11, the cooking cavity 11 is divided by the first baking utensil 5. After entering the cooking cavity 11, the microwaves are reflected by the first baking utensil 5, and the microwave heating space formed becomes smaller than that of the cooking cavity 11. For example, the first baking utensil 5 divides the cooking cavity 11 into two layers, the upper and lower layers. After the microwave enters the cooking cavity 11, it is reflected by the first baking utensil 5, so that a microwave heating space is formed only in the upper space, resulting in a mismatch between the microwave power and the volume of the formed microwave heating space.

[0065] In some embodiments, the microwave cooking device of the present invention further includes an operation panel 7 electrically connected to the control device 3 and configured to output a first operation signal upon detecting a first operation. The control device 3 is further configured to output an operating signal to the sensing device 2 based on the first operation signal to control the operation of the sensing device 2.

[0066] Specifically, when the user performs a first operation such as touching or pressing a switch, area or button with a microwave function on the operation panel 7, a first operation signal is output to the control device 3. After receiving the first operation signal, the control device 3 outputs a working signal of the sensing device 2 to control the operation of the sensing device 2.

[0067] The sensing device 2 is operational and outputs a first sensing signal when the first grilling utensil 5 is placed within the cooking cavity 11. Upon receiving the first sensing signal, the control device 3 outputs a first control signal to the microwave generator 4 to disable the microwave generator 4. Specifically, the control device 3 disables the microwave generator 41 of the microwave generator 4, or disables both the microwave generator 41 and the microwave agitator. This prevents microwave generation when the microwave power does not match the volume of the microwave heating space, effectively preventing problems such as sparks within the cavity, uneven heating, low efficiency, and damage to the microwave equipment.

[0068] In some embodiments, the microwave cooking device of the embodiment of the present application also includes: a display panel 8, which is electrically connected to the control device 3, and the control device 3 is also used to send a first prompt signal while outputting the first control signal; the display panel 8 displays a reminder message according to the first prompt signal to remind the user not to use the first baking utensil 5 when using a microwave.

[0069] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the present invention.

Claims

1. A microwave cooking device, characterized in that: include: a cavity body, wherein a cooking cavity is formed; a sensing device configured to output a first sensing signal when a first baking utensil is placed in the cooking cavity; a control device electrically connected to the sensing device, configured to output a first control signal upon receiving the first sensing signal; a microwave generating device, electrically connected to the control device, and configured to stop operating upon receiving the first control signal; The microwave generating device emits microwaves into the cooking cavity to form a microwave heating space in the cooking cavity; when a first baking utensil is placed in the cooking cavity, the volume of the microwave heating space changes.

2. The microwave cooking device according to claim 1, characterized in that The microwave cooking device further includes: an operation panel electrically connected to the control device, configured to output a first operation signal when a first operation is detected; The control device is further configured to output a sensing device operating signal according to the first operating signal to control the operation of the sensing device.

3. The microwave cooking device according to claim 1, wherein: The sensing device includes an infrared transmitter, an infrared receiver and a signal processing module; wherein, The infrared emitter is used to emit infrared signals into the cooking cavity; The infrared receiver is used to receive the infrared signal reflected by the first baking tool; The signal processing module is used to output the first sensing signal according to the infrared signal emitted by the infrared transmitter and the infrared signal reflected by the first baking tool.

4. The microwave cooking device according to claim 1, wherein: The microwave cooking device further comprises: a display panel electrically connected to the control device, The control device is further configured to send a first prompt signal while outputting the first control signal; The display panel displays reminder information according to the first prompt signal.

5. The microwave cooking device according to any one of claims 1 to 4, characterized in that: The first baking utensil is a baking tray.

6. The microwave cooking device according to claim 1, characterized in that: The sensing device is one of an infrared sensor, an ultraviolet sensor, a laser sensor, an acoustic wave sensor, an image sensor, and a visual sensor.

7. The microwave cooking device according to claim 1, characterized in that: The microwave generating device includes a microwave generator and a waveguide tube, and the microwave generator is electrically connected to the control device.

8. The microwave cooking device according to claim 1, wherein: The sensing device is further configured to output a second sensing signal when a second baking utensil is placed in the cooking cavity; The control device is further configured to receive the second sensing signal and generate a second control signal upon receiving the second sensing signal; The microwave generating device is further configured to control the operation of the microwave generating device according to the second control signal.

9. The microwave cooking device according to claim 8, characterized in that: The sensing device includes an infrared transmitter, an infrared receiver and a signal processing module; wherein, The infrared emitter is used to emit an infrared signal into the cooking cavity when receiving the working signal of the sensing device; The infrared receiver is used to receive the infrared signal reflected back by the inner wall of the cooking cavity; The signal processing module is used to output the second sensing signal according to the infrared signal emitted by the infrared emitter and the infrared signal reflected by the inner wall of the cooking cavity.

10. The microwave cooking device according to claim 8 or 9, characterized in that: The second baking utensil is a grill or a baking cage.

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