Microwave heating apparatus

Abstract

The application provides a microwave heating device. The microwave heating device comprises a main body, a rotating assembly and a driving assembly. The main body is provided with a containing cavity and a first feed opening in communication with the containing cavity. The first feed opening is configured to feed microwaves into the containing cavity. The rotating assembly is disposed on the same side of the first feed opening and in the containing cavity. The driving assembly is rotationally connected with the rotating assembly. The driving assembly is configured to move back and forth along a first direction to drive the rotating assembly to perform rotation motion. The first direction is parallel to the rotation plane of the rotating assembly. The microwave heating device provided by the application can improve the heating uniformity.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to a microwave heating device. Background Technology

[0002] Microwave heating equipment is a common cooking appliance used to cook or heat food, utilizing microwave energy. One type of microwave heating equipment is the microwave oven. Existing microwave ovens feed microwaves through a feed port. Because microwave energy exists as a standing wave field within the microwave oven cavity, uneven heating of food can occur. Summary of the Invention

[0003] This application provides a microwave heating device to solve the technical problem of uneven heating in microwave heating devices.

[0004] To address the aforementioned technical problems, this application provides a microwave heating device, comprising: a main body, a rotating assembly, and a driving assembly. The main body has a receiving cavity and a first feed port communicating with the receiving cavity, the first feed port being configured to feed microwaves into the receiving cavity; the rotating assembly is disposed on the same side as the first feed port and within the receiving cavity; the driving assembly is rotatably connected to the rotating assembly, the driving assembly being configured to reciprocate along a first direction to drive the rotating assembly to rotate; wherein, the first direction is parallel to the rotation plane of the rotating assembly.

[0005] In one embodiment, the drive assembly includes: a rack, a gear, and a second shaft, wherein the rack is configured to reciprocate along a first direction; the gear is rotatably connected to the rack; one end of the second shaft is connected to the gear, and the other end of the second shaft is connected to a rotating assembly, wherein the gear rotates on its own axis as the rack moves to drive the rotating assembly to rotate.

[0006] In one embodiment, the driving assembly further includes: a first magnet and a first coil. The first magnet is disposed at one end of the rack in a first direction and connected to the rack. The first coil is disposed on one side of the first magnet. The first coil is configured to carry current so that the first coil generates a magnetic polarity that is in phase or out of phase with the first magnet, thereby the first magnet and the first coil cooperate to drive the rack to move back and forth along the first direction.

[0007] In one embodiment, the driving component further includes: a second coil disposed on the side of the first magnet opposite to the first coil, and in a first direction, the second coil and the first coil have a preset moving distance; wherein the second coil is configured to carry current so that the second coil generates magnetic polarity that is in phase or out of phase with the first magnet.

[0008] In one embodiment, the drive assembly further includes a second magnet, which is disposed between the second coil and the first magnet, and the second coil and the second magnet are disposed at the other end of the rack in the first direction, with the middle part of the rack rotatably connected to the gear.

[0009] In one embodiment, the drive assembly further includes an elastic element, one end of which is connected to the main body, and the other end of which is connected to one end of the rack in a first direction.

[0010] In one embodiment, the rotating assembly includes either a rotating disk assembly or a stirring antenna.

[0011] In one embodiment, the rotating assembly includes a stirring antenna connected to the other end of the second rotating shaft; wherein the stirring antenna and the driving assembly are both located at the bottom of the receiving cavity.

[0012] In one embodiment, the stirring antenna is provided with at least one fourth feed port for feeding microwaves fed from the first feed port.

[0013] In one embodiment, the microwave heating device further includes: a microwave generator and a waveguide. The microwave generator is disposed on the side of the main body and is used to generate microwaves. The waveguide is connected to the microwave generator and the first feed port respectively. The waveguide includes a first section and a second section that are connected to each other. The second section is disposed at the bottom of the main body and extends along a first direction. The first section is disposed on the side of the main body and its extension direction is perpendicular to the first direction.

[0014] The beneficial effects of this application are as follows: The microwave heating device of this application includes a main body, a rotating assembly, and a driving assembly. The main body has a receiving cavity and a first feed port communicating with the receiving cavity. The first feed port is configured to feed microwaves into the receiving cavity. The rotating assembly is disposed on the same side as the first feed port and within the receiving cavity. The driving assembly is rotatably connected to the rotating assembly and is configured to reciprocate along a first direction to drive the rotating assembly to rotate. The first direction is parallel to the rotation plane of the rotating assembly. When the driving assembly reciprocates along the first direction, it drives the rotating assembly to rotate, allowing the rotating assembly to disturb the microwaves in the receiving cavity or rotate the food. Furthermore, the rotation speed of the rotating assembly is determined by the reciprocating speed of the driving assembly. By adjusting the rotation speed of the rotating assembly, the microwave distribution within the receiving cavity can be changed, thus disturbing the microwaves and enhancing the heating uniformity of the microwave heating device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the structure of the first embodiment of the microwave heating device provided in this application; Figure 2 yes Figure 1 An exploded schematic diagram of the structure of a microwave heating device; Figure 3 This is a structural schematic diagram of an embodiment of the first plate provided in this application; Figure 4 This is a schematic diagram of the structure of the second embodiment of the microwave heating device provided in this application; Figure 5 yes Figure 4 A schematic diagram of the structure of a microwave heating device from another perspective; Figure 6 yes Figure 4 An exploded schematic diagram of the structure of a microwave heating device; Figure 7 This is a schematic diagram of the structure of the third embodiment of the microwave heating device provided in this application; Figure 8 yes Figure 7 A cross-sectional schematic diagram of a microwave heating device; Figure 9 yes Figure 7 An exploded schematic diagram of the structure of a microwave heating device; Figure 10 yes Figure 7 An exploded schematic diagram of part of the structure of a microwave heating device; Figure 11 This is a schematic diagram of the structure of the first embodiment of the driving component provided in this application; Figure 12 This is a schematic diagram of the structure of the second embodiment of the driving component provided in this application; Figure 13 This is a schematic diagram of the structure of the third embodiment of the driving component provided in this application; Figure 14 This is a schematic diagram of the structure of the fourth embodiment of the driving component provided in this application; Figure 15 This is a schematic diagram of an embodiment of the stirring antenna provided in this application.

[0016] Figure label: 10 Microwave heating equipment; 100 Main body; 101 Receiving cavity; 102 First feed port; 103 Through hole; 104 Waveguide cavity; 110 Cover plate; 111 Receiving groove; 200 Microwave generator; 300 Waveguide; 301 First section; 302 Second section; 400 Fan assembly; 500 Stirring assembly; 501 Second feed port; 502 Third feed port; 510 First plate; 520 Second plate; 530 Adjusting component; 600 Drive assembly; 601 Drive plate; 602 First rotating shaft; 603 First coil; 604 First magnet component; 605 Second coil; 606 Second magnet component; 607 Rack; 608 Gear; 609 Second rotating shaft; 610 Elastic component; 611 Bearing; 612 Bracket; 700 Rotating assembly; 701 Fourth feed port; 710 Stirring antenna; 711 Hollow shaft; 712 First wall; 713 Second wall. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0019] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0020] The microwave heating equipment provided in this application may include microwave ovens, microwave-steam-grill combos and other microwave heating equipment with microwave cooking functions. This application will use microwave ovens as an example for description.

[0021] This application proposes a microwave heating device, such as... Figures 1 to 15 As shown, Figure 1This is a schematic diagram of the structure of the first embodiment of the microwave heating device provided in this application; Figure 2 yes Figure 1 An exploded schematic diagram of the structure of a microwave heating device; Figure 3 This is a structural schematic diagram of an embodiment of the first plate provided in this application; Figure 4 This is a schematic diagram of the structure of the second embodiment of the microwave heating device provided in this application; Figure 5 yes Figure 4 A schematic diagram of the structure of a microwave heating device from another perspective; Figure 6 yes Figure 4 An exploded schematic diagram of the structure of a microwave heating device; Figure 7 This is a schematic diagram of the structure of the third embodiment of the microwave heating device provided in this application; Figure 8 yes Figure 7 A cross-sectional schematic diagram of a microwave heating device; Figure 9 yes Figure 7 An exploded schematic diagram of the structure of a microwave heating device; Figure 10 yes Figure 7 An exploded schematic diagram of part of the structure of a microwave heating device; Figure 11 This is a schematic diagram of the structure of the first embodiment of the driving component provided in this application; Figure 12 This is a schematic diagram of the structure of the second embodiment of the driving component provided in this application; Figure 13 This is a schematic diagram of the structure of the third embodiment of the driving component provided in this application; Figure 14 This is a schematic diagram of the structure of the fourth embodiment of the driving component provided in this application; Figure 15 This is a schematic diagram of an embodiment of the stirring antenna provided in this application. The microwave heating device 10 of this application includes: a main body 100, a microwave generator 200, a waveguide 300, and a fan assembly 400.

[0022] The main body 100 includes a receiving cavity 101 and a first feed port 102 communicating with the receiving cavity 101. The first feed port 102 is configured to feed microwaves into the receiving cavity 101. The receiving cavity 101 can be used to house components of the microwave heating device 10, and it can also be used to house food to be heated. The cavity containing the food and the cavity containing the components can be the same or two separate cavities; this is not limited. Specifically, the main body 100 includes a housing (not shown) and a door (not shown). The housing forms a heating cavity with an opening for holding food; the door covers the opening to seal the heating cavity, reducing microwave leakage and heat loss, and improving cooking results.

[0023] The microwave generator 200 is the "heart" of the microwave heating device 10, and its function is to convert direct current electrical energy into microwave energy. The microwave generator 200 may include a magnetron. Of course, in other embodiments, transistors or microwave power modules may be used instead of magnetrons. The microwave energy generated by the magnetron can be transmitted to the receiving cavity 101 through the waveguide 300. One end of the waveguide 300 is connected to the antenna of the magnetron, and the other end is connected to the first feed port 102.

[0024] The fan assembly 400 is located outside the receiving cavity 101 and on one side of the microwave generator 200. The fan assembly 400 is used to generate airflow to dissipate heat from the microwave generator 200, thereby enhancing the reliability of the microwave generator 200.

[0025] The uniformity of food heating is related to the uniformity of the microwave field within the cavity 101. If the uniformity of the microwave field within the cavity 101 is poor, and the microwave distribution in different areas of the cavity 101 is uneven, it will lead to uneven heating between different parts of the food, affecting the cooking effect.

[0026] In one embodiment, to enhance the heating uniformity of the microwave heating device 10, see [reference needed]. Figure 1 The microwave heating device 10 of this embodiment also includes a stirring assembly 500. The stirring assembly 500 is disposed on the same side as the first feed port 102 and is located within the receiving cavity 101. The stirring assembly 500 has at least one third feed port 502, which is used to feed microwaves fed from the first feed port 102. When there is one third feed port 502, an adjusting member 530 is provided at the third feed port 502. When there are multiple third feed ports 502, all or some of the third feed ports 502 are provided with adjusting members 530 to adjust the circumference of the third feed port 502. The stirring assembly 500 of this embodiment is provided with at least one third feed port 502, and an adjusting member 530 is provided at the third feed port 502. The adjusting member 530 can adjust the circumference of the third feed port 502. The third feed port 502 has a maximum circumference and a minimum circumference. The minimum circumference can be greater than or equal to zero. That is to say, the third feed port 502 on the stirring assembly 500 with the adjusting member 530 can be completely closed. At this time, microwaves cannot flow from the completely closed third feed port 502. In addition, the adjusting member 530 can also partially close the third feed port 502, so that the third feed ports 502 with different circumferences can feed microwaves to the food. Furthermore, the frequency or speed of opening or closing the third feed port 502 can also change the distribution of microwaves in the receiving cavity 101, and can further disturb the microwaves in the receiving cavity 101, thereby improving the uniformity of microwave radiation and thus improving the heating uniformity of the microwave heating device 10.

[0027] In one embodiment, to further improve the heating uniformity of the microwave heating device 10, the microwave heating device 10 of this embodiment further includes a stirring antenna 710 and a driving assembly 600. The main body 100 is also provided with a through hole 103 communicating with the receiving cavity 101, and the through hole 103 is disposed on the same side as the first feed port 102. The stirring antenna 710 is disposed on the side of the stirring assembly 500 facing the first feed port 102, that is, the stirring antenna 710 is located between the first feed port 102 and the stirring assembly 500. Part of the structure of the driving assembly 600 extends into the receiving cavity 101 through the through hole 103 and connects with the stirring antenna 710 and the stirring assembly 500, and the main part of the driving assembly 600 is disposed outside the receiving cavity 101. The driving assembly 600 is configured to drive one of the stirring assembly 500 and the stirring antenna 710 to rotate relative to the other. Understandably, in this embodiment, the stirring antenna 710 can be fixedly connected to the main body 100, and the driving component 600 can drive the stirring component 500 to rotate relative to the stirring antenna 710; or the stirring component 500 can be fixedly connected to the main body 100, and the driving component 600 can drive the stirring antenna 710 to rotate relative to the stirring component 500.

[0028] In this embodiment, the stirring antenna 710 rotates relative to the stirring assembly 500. Whether the stirring antenna 710 or the stirring assembly 500 rotates, it can have a good effect of disturbing microwaves during the rotation process, thereby making microwave reflection more complete and improving the uniformity of microwave distribution in the receiving cavity 101, and further improving the heating uniformity of the microwave heating device 10.

[0029] In one embodiment, to further improve the heating uniformity of the microwave heating device 10, a stirring antenna 710 is connected to the main body 100, and a stirring assembly 500 rotates relative to the stirring antenna 710. The radial dimension of the stirring antenna 710 in the rotation plane of the stirring assembly 500 is greater than or equal to the distance between the third feed port 502 and the rotation center of the stirring assembly 500. The rotation plane refers to the plane in which the stirring assembly 500 rotates around its rotation center. Since the radial dimension of the stirring antenna 710 in the rotation plane is greater than or equal to the distance between the third feed port 502 and the rotation center, during rotation, the projection of the stirring antenna 710 in the arrangement direction of the stirring antenna 710 and the stirring assembly 500 can at least partially cover the third feed port 502, thereby changing the direction of the microwaves and improving the effect of disturbing the microwaves, further enhancing the heating uniformity of the microwave heating device 10.

[0030] In one embodiment, to further improve the heating uniformity of the microwave heating device 10, a stirring antenna 710 is connected to the main body 100, and a stirring assembly 500 rotates relative to the stirring antenna 710. The projection of the stirring antenna 710 in the arrangement direction of the stirring assembly 500 and the stirring antenna 710 covers the first feed port 102. In this embodiment, the stirring assembly 500 rotates, while the stirring antenna 710 does not. The projection of the stirring antenna 710 in the arrangement direction of the stirring assembly 500 and the stirring antenna 710 can cover the first feed port 102, thereby changing the direction of microwave entry into the third feed port 502, thus enhancing the effect of disturbing the microwaves and further improving the heating uniformity of the microwave heating device 10.

[0031] In one embodiment, the stirring assembly 500 includes: a first plate 510 and a light-emitting assembly. The first plate 510 is provided with at least one third feed port 502 and an adjusting member 530. The adjusting member 530 is configured to adjust the opening of the third feed port 502 when receiving a light signal, thereby adjusting the perimeter of the third feed port 502. The light-emitting assembly is configured to emit a light signal to the adjusting member 530 based on the adjustment command.

[0032] The opening degree refers to the extent to which the regulating member opens or closes the third feed port 502. During the opening or closing process, the perimeter of the opened portion of the third feed port 502 can change. For example, the opening degree of the third feed port can be 10%, 20%, 50%, 75%, 90%, 100%, etc., and is not limited here. When the regulating member 530 receives an optical signal, it can close the third feed port 502, or it can close a portion of the third feed port 502, and is not limited here. For example, when the regulating member 530 receives an optical signal, the third feed port 502 is in a closed state, and microwaves cannot flow through the closed third feed port 502; when the regulating member 530 does not receive an optical signal, the third feed port 502 is in an open state, and microwaves flow through the open third feed port 502. Alternatively, when the regulating member 530 receives an optical signal, a portion of the third feed port 502 is closed, and microwaves flow from the unclosed portion of the third feed port 502.

[0033] The light-emitting component can emit light signals of different intensities or light signals of different frequency bands. The adjustment component 530 can adjust the perimeter of the third feed port 502 based on light signals of different intensities; or it can adjust the perimeter of the third feed port 502 based on light signals of different frequency bands; or it can adjust different perimeters of the third feed port 502 based on both light signals of different intensities and light signals of different frequency bands, thereby achieving precise adjustment of the perimeter of the third feed port 502. In other embodiments, the light-emitting component can be the light-emitting component of the microwave heating device 10.

[0034] In this configuration, when the stirring assembly 500 is a rotatable structure, the light-emitting assembly remains stationary, while the first plate 510 can rotate relative to the stirring antenna 710. For example, the first plate 510 is fixedly connected to either the first rotating shaft 602 or the second rotating shaft 609 of the driving assembly 600. In other embodiments, to reduce the number of components, the first plate 510 can be integrally formed with either the first rotating shaft 602 or the second rotating shaft 609.

[0035] The stirring assembly 500 of this embodiment is provided with a first plate 510 and a light-emitting assembly. The first plate 510 is provided with a third feed port 502 and a dimming component. The light-emitting assembly emits a light signal to the adjusting component 530 based on the adjustment command. When the adjusting component 530 receives the light signal, it adjusts the opening of the third feed port 502, thereby realizing the adjustment of the circumference of the third feed port 502.

[0036] In one embodiment, to enhance the adjustment accuracy of the perimeter of the third feed port 502, the light-emitting component includes a plurality of sub-emitters configured to emit optical signals to the adjustment member 530. The optical signals from different sub-emitters have different intensities; or the optical signals from different sub-emitters have different frequency bands.

[0037] In one embodiment, the first plate 510 is provided with a plurality of third feed ports 502, the extension directions of adjacent third feed ports 502 intersect each other, and each third feed port 502 is provided with a plurality of spaced-apart adjustment members 530 along the extension direction. For example, the third feed port 502 is provided with one, two or three adjustment members 530, and each adjustment member 530 is provided to adjust a portion of the perimeter of the third feed port 502. For example, when the third feed port 502 is provided with three adjustment members 530, each adjustment member 530 receives a different intensity of the optical signal from the sub-transmitter; or, one adjustment member 530 can receive the optical signal of the first frequency band and the first optical signal intensity of the sub-transmitter, another can receive the optical signal of the first frequency band and the second optical signal intensity of the sub-transmitter, and yet another adjustment member 530 can receive the optical signal of the second frequency band of the sub-transmitter, which is not limited here. In this embodiment, by providing a plurality of adjustment members 530 in each third feed port 502, the first plate 510 can achieve precise adjustment of the perimeter of the third feed port 502, thereby enhancing the heating uniformity of the microwave heating device 10.

[0038] In one embodiment, the stirring assembly 500, stirring antenna 710, microwave generator 200, fan assembly 400, and drive assembly 600 are located on the side of the main body 100. Compared with the microwave heating device 10 which separates the stirring assembly 500, stirring antenna 710, microwave generator 200, and fan assembly 400 into separate sections, the microwave heating device 10 of this application can shorten the microwave transmission path and reduce microwave energy loss. In addition, it can also reduce the volume of the microwave heating device 10 or increase the volume of the receiving cavity 101.

[0039] In one embodiment, the first plate 510 is further provided with a second feed port 501. The microwave heating device 10 also includes a stirring antenna 710 and a driving assembly 600. The stirring antenna 710 is disposed on the same side as the first feed port 102 and within the receiving cavity 101. The driving assembly 600 is connected to the stirring antenna 710 and is configured to move along a second direction to drive the stirring antenna 710 to open or close the second feed port 502. The second direction is parallel to the axial direction of the second feed port 502. The stirring antenna 710 is used to open or close the second feed port 501. When the second feed port 501 is open, microwaves are fed through the second feed port 501; when the second feed port 501 is closed, microwaves cannot be fed through the second feed port 501. During the process of the stirring antenna 710 moving along the second direction to open or close the second feed port 501, the stirring antenna 710 can change the direction in which microwaves are fed from the first feed port 102 into the second feed port 501, thereby disturbing the microwave energy in the receiving cavity 101. In addition, the frequency or speed at which the stirring antenna opens or closes the second feed port can also make the microwave distribution in the receiving cavity 101 different, further disturbing the microwave energy in the receiving cavity 101 and improving the heating uniformity of the microwave heating device 10.

[0040] The microwave heating device of this embodiment can feed microwaves through the second feed port 501, the third feed port 502, or both. At different times, the second feed port 501 and the third feed port 502, as well as the different gaps at different positions of the third feed port 502, randomly switch to feed microwaves, which can disturb the microwaves in the receiving cavity 101 and improve the heating uniformity. At the same time, the microwave heating device 10 can select the corresponding microwave feeding method based on the type of food, thereby improving the heating quality of the microwave heating device 10. In addition, the first plate 510 adjusts the perimeter of the third feed port 502 through the adjusting member 530 to achieve microwave disturbance, without the need for an additional driving mechanism, which can reduce the space occupied by the additional driving mechanism in the receiving cavity 101 and also reduce the cost of the microwave heating device 10.

[0041] In one embodiment, to improve the heating uniformity of the microwave heating device 10, see [reference needed]. Figure 4The microwave heating device 10 of this embodiment further includes a stirring antenna 710, a second plate 520, and a driving assembly 600. The stirring antenna 710 is disposed on the same side as the first feed port 102 and within the receiving cavity 101. The second plate 520 is disposed within the receiving cavity 101 and located between the first feed port 102 and the stirring antenna 710. The second plate 520 has a second feed port 501 for feeding microwaves fed in from the first feed port 102. The driving assembly 600 is connected to the stirring antenna 710 and is configured to move along a second direction to drive the stirring antenna 710 to open or close the second feed port 501. The second direction is parallel to the axial direction of the second feed port 501.

[0042] Understandably, the stirring antenna 710 in this embodiment is used to open or close the second feed port 501. When the second feed port 501 is open, microwaves are fed through the second feed port 501; when the second feed port 501 is closed, microwaves cannot be fed through the second feed port 501. During the process of the stirring antenna 710 moving along the second direction to open or close the second feed port 501, the stirring antenna 710 can change the direction in which microwaves are fed from the first feed port 102 into the second feed port 501, thereby disturbing the microwave energy within the receiving cavity 101. Furthermore, the frequency or speed at which the stirring antenna opens or closes the second feed port can also cause different microwave distributions within the receiving cavity 101, further disturbing the microwave energy within the receiving cavity 101 and improving the heating uniformity of the microwave heating device 10.

[0043] In one embodiment, the second plate 520 is further provided with a plurality of third feed ports 502 and adjustment members 530. The third feed ports 502 are used to feed microwaves fed from the first feed port 102. At least some of the third feed ports 502 are provided with adjustment members 530 to adjust the perimeter of the third feed ports 502. The adjustment of the perimeter of the third feed ports 502 of the second plate 520 can be referred to the adjustment method of the perimeter of the third feed port 502 of the first plate 510, and will not be described in detail here. In this embodiment, a third feed port 502 is provided on the second plate 520. Microwaves can be fed through the second feed port 501, the third feed port 502, or both. At different times, the second feed port 501, the third feed port 502, and the gaps at different positions of the third feed port 502 randomly switch to feed microwaves, which can disturb the microwaves in the receiving cavity 101, improve the heating uniformity, and at the same time, the microwave heating device 10 can select the corresponding microwave feed method based on the type of food, thereby improving the heating quality of the microwave heating device 10. In addition, the second plate 520 adjusts the perimeter of the third feed port 502 through the adjusting member 530 to achieve microwave disturbance, without the need for an additional driving mechanism, which can reduce the space occupied by the additional driving mechanism in the receiving cavity 101 and reduce the cost of the microwave heating device 10.

[0044] In one embodiment, the third feed port 502 of the second plate 520 extends radially along the second plate 520. Along the extending direction of the third feed port 502, each third feed port 502 is provided with a plurality of spaced-apart adjustment members 530. For example, the third feed port 502 may have one, two, or three adjustment members 530, each adjustment member 530 corresponding to a portion of the perimeter of the third feed port 502. For example, when the third feed port 502 has three adjustment members 530, each adjustment member 530 receives a different intensity of the optical signal from the sub-transmitter; or, one adjustment member 530 may receive an optical signal of the first frequency band and first optical signal intensity from the sub-transmitter, another may receive an optical signal of the first frequency band and second optical signal intensity from the sub-transmitter, and yet another adjustment member 530 may receive an optical signal of the second frequency band from the sub-transmitter; this is not limited here. In this embodiment, the first plate 510 can achieve precise adjustment of the circumference of the third feed port 502 by providing multiple adjustment members 530 in each third feed port 502, thereby enhancing the heating uniformity of the microwave heating device 10.

[0045] In one embodiment, the drive assembly 600, the second plate 520, the first feed port 102, and the stirring antenna 710 are all located at the bottom of the main body 100; the microwave generator 200 and the fan assembly 400 are located on the side of the main body 100. This embodiment places the stirring antenna 710, which moves along the second direction, at the bottom of the main body 100, which reduces further space occupation on the side of the main body 100 and avoids making the side volume of the main body 100 too large.

[0046] In one embodiment, the waveguide 300 includes a first segment 301 and a second segment 302 that are interconnected. The first segment 301 is located on the side of the main body 100 and extends along a second direction, while the second segment 302 is located on the bottom of the main body 100 and extends perpendicular to the second direction. In this manner, the waveguide 300 can be fitted to the side and bottom of the main body 100, reducing the space occupied by the waveguide 300 in the microwave heating device 10.

[0047] In one embodiment, see Figure 8 The main body 100 includes a cover plate 110, which has a receiving groove 111. The cover plate 110 covers the through hole 103, and the opening of the receiving groove 111 faces the through hole 103. The edge of the second plate 520 extends toward the side where the first feed port 102 is located, so as to form a waveguide cavity 104 with the bottom wall of the receiving cavity 101. The other end of the stirring antenna 710 is located in the waveguide cavity 104 and the receiving groove 111, which can reduce the volume of the microwave heating device 10.

[0048] In one embodiment, to enhance the heating uniformity of the microwave heating device 10, see [reference needed]. Figure 7The microwave heating device 10 includes a rotating assembly 700 and a driving assembly 600. The rotating assembly 700 is disposed within the receiving cavity 101 and is located on the same side as the first feed port 102. The driving assembly 600 is configured to drive the rotating assembly 700 to rotate. The rotating assembly 700 can be a rotating disk assembly, which drives the food to be heated to rotate, thereby ensuring that the food is heated evenly by microwaves, thus improving the heating uniformity of the microwave heating device 10. Alternatively, the rotating assembly 700 can be a stirring antenna 710, which can disturb the distribution of microwaves within the receiving cavity 101 during rotation, thereby ensuring that microwaves are evenly distributed within the receiving cavity 101, thus improving the heating uniformity of the microwave heating device 10. In this embodiment, the driving assembly 600 is configured to reciprocate along a first direction to drive the rotating assembly 700 to rotate; wherein the first direction is parallel to the rotation plane of the rotating assembly 700.

[0049] The microwave heating device 10 of this embodiment further includes a rotating component 700 and a driving component 600. When the driving component 600 moves back and forth along the first direction, it drives the rotating component 700 to rotate, so that the rotating component 700 can disturb the microwaves in the receiving cavity 101 or drive the food to rotate. In addition, the rotation speed of the rotating component 700 is determined by the reciprocating speed of the driving component 600. By adjusting the rotation speed of the rotating component 700, the microwave distribution in the receiving cavity 101 can be changed, and the microwaves in the receiving cavity 101 can be disturbed, thereby enhancing the heating uniformity of the microwave heating device 10.

[0050] In one embodiment, the rotating assembly 700 includes a stirring antenna 710, and both the stirring antenna 710 and the driving assembly 600 are located at the bottom of the receiving cavity 101; the microwave generator 200 and the fan assembly 400 are located on the side of the main body 100. In this embodiment, the driving assembly 600, which moves along the first direction, is located at the bottom of the main body 100, which can reduce the further occupation of space on the side of the main body 100 and avoid the side volume of the main body 100 being too large.

[0051] In one embodiment, the waveguide 300 includes a first segment 301 and a second segment 302 that are interconnected. The second segment 302 is located at the bottom of the main body 100 and extends along a first direction, while the first segment 301 is located on the side of the main body 100 and extends perpendicular to the first direction. In this manner, the waveguide 300 can fit snugly against the side and bottom of the main body 100, and the orientation of the second segment 302 is the same as the moving direction of the drive assembly 600, thereby reducing the space occupied by the waveguide 300 in the microwave heating device 10.

[0052] In one embodiment, the stirring antenna 710 is provided with at least one fourth feed port 701, which is used to feed microwaves fed from the first feed port 102. That is, during the operation of the microwave heating device 10, the stirring antenna 710 is driven to rotate by the driving component 600, which can change the angle of the microwaves fed from the first feed port 102 to the fourth feed port 701. Thus, the stirring antenna 710 can further disturb the microwaves in the receiving cavity 101, thereby improving the heating uniformity of the microwave heating device 10.

[0053] In one embodiment, see Figure 11 , Figure 11 This is a schematic diagram of the structure of the first embodiment of the drive assembly 600 provided in this application. In this embodiment, the drive assembly 600, microwave generator 200, and fan assembly 400 are located on the same side of the main body 100. The drive assembly 600 includes a drive plate 601 and a first rotating shaft 602. The drive plate 601 is located outside the receiving cavity 101. One end of the first rotating shaft 602 is connected to the drive plate 601, and the other end of the first rotating shaft 602 extends into the receiving cavity 101 and is connected to the stirring antenna 710 or the stirring assembly 500. The airflow generated by the fan assembly 400 is also used to blow the drive plate 601 to drive the stirring assembly 500 or the stirring antenna 710 to rotate.

[0054] In this embodiment, the drive assembly 600, microwave generator 200, and fan assembly 400 are located on the same side of the main body 100. Compared to microwave heating devices 10 where the drive assembly 600 and microwave generator 200 are located on different sides of the main body 100, the same-side design in this embodiment reduces the long span of the microwave energy, thereby reducing the space occupied by components designed to meet the long span, allowing the volume of the microwave heating device 10 to be reduced or the volume of the housing cavity 101 to be increased. Furthermore, in this embodiment, the power source for the drive assembly 600 is the fan assembly 400. The fan assembly 400 can dissipate heat from the microwave generator while driving the drive assembly 600 to rotate, thereby enabling the drive assembly 600 to drive the stirring antenna 710 or the stirring component to rotate. In other words, the microwave heating device 10 in this embodiment does not require additional power components, further reducing the volume of the microwave heating device 10 or increasing the volume of the housing cavity 101. Moreover, the number of components in the microwave heating device 10 is reduced, lowering the production cost of the product.

[0055] In one embodiment, the drive assembly 600 further includes a bearing 611 disposed in the through hole 103, and the first rotating shaft 602 is rotatably connected to the bearing 611.

[0056] In one embodiment, to reduce the cost of the microwave heating device 10, the driving component 600 includes a first magnet 604 and a first coil 603. When current is applied to the first coil 603, it generates a magnetic polarity that is the same as or opposite to that of the first magnet 604, resulting in an attractive force or a repulsive force between them. Based on this principle, when one of the first magnet 604 or the first coil 603 is mounted on a structure that moves in a certain direction, and the other is fixed, the two work together to cause the first magnet 604 or the first coil 603 mounted on the structure to drive the structure to reciprocate in a certain direction, thereby realizing the function of the driving component 600 reciprocating in the same direction.

[0057] For example, see Figure 10 The first magnet 604 is located on the side of the second plate 520 facing the first feed port 102 and is connected to the stirring antenna 710; the first coil 603 is located on the side of the first magnet 604 away from the second plate 520; wherein, the first coil 603 is configured to carry current so that the first coil 603 generates a magnetic polarity that is in phase or out of phase with the first magnet 604, thereby the first magnet 604 and the first coil 603 cooperate to drive the stirring antenna 710 to move back and forth along the second direction.

[0058] The drive component 600 in this embodiment is an electromagnetic drive design. Compared with the microwave heating device 10 that uses a motor as the drive design, the first magnet 604 and the first coil 603 in this embodiment have lower costs, which can reduce the cost of the microwave heating device 10.

[0059] In other embodiments, the first magnet 604 can also be replaced by the second coil 605. When the first coil 603 and the second coil 605 are supplied with opposite currents, there is a repulsive force between the first coil 603 and the second coil 605; when the first coil 603 and the second coil 605 are supplied with in-phase currents, there is an attractive force between the first coil 603 and the second coil 605.

[0060] In one embodiment, in order to drive rotating components such as the stirring antenna 710, stirring assembly 500, or rotating disk assembly to rotate, while reducing the cost of the driving assembly 600, see [reference needed]. Figures 11 to 14The drive assembly 600 in this embodiment further includes a rack 607, a gear 608, and a second rotating shaft 609. The gear 608 is fixedly or detachably connected to the second rotating shaft 609, and the gear 608 is rotatably connected to the rack 607. Specifically, the rack 607 is configured to move back and forth in a certain direction, and the second rotating shaft 609 is configured to be connected to rotating structural components such as the stirring assembly 500, the stirring antenna 710, and the rotating disk assembly. When the rack 607 moves back and forth in a certain direction, it can drive the gear 608 to rotate clockwise or counterclockwise, thereby driving the second rotating shaft 609 to rotate, and further driving the structural components to rotate.

[0061] For example, the rack 607 is configured to move back and forth along a first direction, which is parallel to the rotation plane of the stirring antenna 710 or the stirring assembly 500; the gear 608 is rotatably connected to the rack 607; one end of the second rotating shaft 609 is connected to the gear 608, and the other end of the second rotating shaft 609 is connected to the stirring assembly 500 or the stirring antenna 710, wherein the gear 608 rotates when the rack 607 moves, thereby causing one of the stirring assembly 500 or the stirring antenna 710 to rotate relative to the other.

[0062] Alternatively, the rack 607 is configured to reciprocate along a first direction; the gear 608 is rotatably connected to the rack 607; one end of the second rotating shaft 609 is connected to the gear 608, and the other end of the second rotating shaft 609 is connected to the rotating assembly 700, wherein the gear 608 rotates on its own when the rack 607 moves to drive the rotating assembly 700 to rotate.

[0063] Specifically, a first magnet 604 is disposed at one end of a rack 607 in a first direction and connected to the rack 607; a first coil 603 is disposed on one side of the first magnet 604; wherein, the first coil 603 is configured to carry current so that the first coil 603 generates a magnetic polarity that is in phase or out of phase with the first magnet 604, thereby the first magnet 604 and the first coil 603 cooperate to drive the rack 607 to move back and forth along the first direction.

[0064] Understandably, the driving source of the rack 607 in this embodiment is an electromagnetic driving source consisting of the first magnet 604 and the first coil 603. Specifically, the first coil 603 is supplied with either a current in phase or a current in opposite phase, making the magnetic polarity of the first coil 603 the same as that of the first magnet 604, thus creating a repulsive force between them. Under the action of this repulsive force, the first magnet 604 drives the rack 607 to move from the initial position to the target position along the first direction. At the target position, the first coil 603 is supplied with either a current in phase or a current in opposite phase, at which point the magnetic polarity of the first coil 603 is different from that of the first magnet 604, thus creating an attractive force between them. Under the action of this attractive force, the first magnet 604 drives the rack 607 to move from the target position to the initial position along the first direction. When the rack 607 reciprocates between the target position and the initial position, it can drive the gear 608 to rotate.

[0065] The first magnet 604 can be disposed on one side of the rack 607, or at the end of the rack 607 in the first direction, or sleeved on the outer periphery of one end of the rack 607 in the first direction; there is no limitation on this. The first coil 603 can be disposed close to the first magnet 604, for example, the first coil 603 can be located on any side of the first magnet 604, such as the left, right, top, or bottom; there is no limitation on this. In order to increase the repulsive and attractive forces between the first coil 603 and the first magnet 604, and to enhance the stability of the rack 607's movement, the first magnet 604 and the first coil 603 are sleeved on the outer periphery of one end of the rack 607 in the first direction, wherein the first coil 603 is located on any side of the first magnet 604 in the first direction.

[0066] The drive source of the rack 607 in this embodiment is an electromagnetic drive composed of a first coil 603 and a first magnet 604. Compared with motor drive, the drive component 600 in this embodiment has a lower cost.

[0067] In one embodiment, to enhance the reliability of the drive assembly 600, the drive assembly 600 further includes a second coil 605. The second coil 605 is disposed on the side of the first magnet 604 opposite to the first coil 603, and there is a preset moving distance between the second coil 605 and the first coil 603 in a first direction or a second direction; wherein, the second coil 605 is configured to carry current so that the second coil 605 generates a magnetic polarity that is in phase or out of phase with the first magnet 604.

[0068] Understandably, the driving source of the rack 607 or the rotating assembly in this embodiment is an electromagnetic driving source that works in conjunction with the first magnet 604, the first coil 603, and the second coil 605. Specifically, a current of the same phase or a current of opposite phase is passed through the first coil 603, making the magnetic polarity of the first coil 603 the same as that of the first magnet 604, thus creating a repulsive force between them. Under the action of this repulsive force, the first magnet 604 drives the rack 607 to move from the initial position to the target position along the first direction, or the first magnet 604 drives the stirring antenna 710 to move from the initial position to the target position along the second direction. At the target position, a current of the same phase or a current of opposite phase is passed through the second coil 605, making the magnetic polarity of the second coil 605 the same as that of the first magnet 604, thus creating a repulsive force between them. Under the action of this repulsive force, the first magnet 604 drives the rack 607 to move from the target position to the initial position along the first direction, or drives the stirring antenna 710 to move from the target position to the initial position along the second direction.

[0069] In one embodiment, when current is applied to the first coil 603, current may not be applied to the second coil 605. That is, the first coil 603 and the second coil 605 operate alternately, which reduces the power consumption of the microwave heating device 10 compared to applying current to both simultaneously. In other embodiments, to enhance the driving capability, current can be applied to the first coil 603 and the second coil 605 simultaneously. For example, in the initial position, if the first magnet 604 is close to the first coil 603, the first coil 603 is supplied with a current in phase, and the second coil 605 is supplied with a current in opposite phase. This results in a repulsive force between the first coil 603 and the first magnet 604, and an attractive force between the second coil 605 and the first magnet 604. This driving method makes it easier for the rack 607 or the stirring antenna 710 to reciprocate between the initial and target positions, thereby enhancing the reliability of the driving assembly 600.

[0070] The distance between the initial position and the target position can be a preset movement distance.

[0071] In one embodiment, to further enhance the reliability of the drive assembly 600, the drive assembly 600 further includes a second magnet 606. The second magnet 606 is disposed between the second coil 605 and the first magnet 604, and the second coil 605 and the second magnet 606 are disposed at the other end of the rack 607 in the first direction, with the middle portion of the rack 607 rotatably connected to the gear 608. Specifically, the first magnet 604 and the first coil 603 are sleeved on one end of the rack 607 in the first direction, and the first magnet 604 is connected to one end of the rack 607; the second magnet 606 and the second coil 605 are sleeved on the other end of the rack 607 in the first direction, and the second magnet 606 is connected to the other end of the rack 607.

[0072] In this embodiment, the drive assembly 600 is further provided with a second magnet 606, which cooperates with the second coil 605, and the first magnet 604 cooperates with the first coil 603, thereby enhancing the driving capability of the drive assembly 600 and thus enhancing the reliability of the drive assembly 600.

[0073] In one embodiment, to enhance the reliability of the drive assembly 600, the drive assembly 600 further includes an elastic member 610, one end of which is connected to the main body 100, and the other end of which is configured to be connected to a structural member along a certain direction, such as a first direction or a second direction. The elastic member 610 can be stretched and reset along the first direction or the second direction.

[0074] For example, one end of the elastic element 610 is connected to the main body 100, and the other end of the elastic element 610 is connected to one end of the rack 607 in the first direction. The elastic element 610 can be disposed at any end of the rack 607 in the first direction. For example, the elastic element 610 can be disposed at the end of the rack 607 where the first coil 603 and the first magnet 604 are provided, or the elastic element 610 can be disposed at the other end of the rack 607 in the first direction where the first magnet 604 and the first coil 603 are not provided. When the elastic element 610 is in its natural state, current flows through the first coil 603, causing a repulsive force between the first coil 603 and the first magnet 604. This causes the first magnet 604 to move the rack 607 from its initial position to its target position. At the target position, the elastic element 610 is in a stretched state, and there is a tensile force between the rack 607 and the elastic element 610. When the current in the first coil 603 decreases or no current flows through it, the repulsive force between the first coil 603 and the first elastic element 610 becomes less than the tensile force. As the elastic element 610 returns to its natural state, it pulls the rack 607 back to its initial position.

[0075] For example, one end of the elastic element 610 is connected to the main body 100, and the other end is connected to the stirring antenna 710. When the stirring antenna 710 is in the initial position, the second feed port 501 is closed, and the elastic element 610 is in its natural state. When current is applied to the first coil 603, a repulsive force exists between the first coil 603 and the first magnet 604, thereby causing the first magnet 604 to move the stirring antenna 710 from the initial position to the target position. When the stirring antenna 710 is in the target position, the second feed port 501 is opened, and the elastic element 610 is in a stretched state, with a tensile force between the stirring antenna 710 and the elastic element 610. When the current in the first coil 603 decreases or no current is applied, the repulsive force between the first coil 603 and the first elastic element 610 is less than the tensile force, and the process of the elastic element 610 returning to its natural state pulls the stirring antenna 710 back to the initial position.

[0076] The drive component 600 in this embodiment further enhances its reliability by adding an elastic element 610. Compared to a drive source that adds an electrical structure, the elastic element 610 is a purely mechanical structure, which can reduce power consumption and has a low cost.

[0077] In one embodiment, the drive assembly 600 further includes a bracket 612, one end of which is connected to the main body 100, and the other end of which is connected to one end of the elastic member 610. Understandably, the drive assembly 600 of this embodiment achieves a fixed connection between the elastic member 610 and the main body 100 by adding the bracket 612. This connection method is simple and easy to implement, reducing the design difficulty of the drive assembly 600.

[0078] In one embodiment, see Figure 15 The stirring antenna 710 includes a hollow shaft 711, a first wall portion 712, and a second wall portion 713. The hollow shaft 711 is sleeved outside the first rotating shaft 602 of the drive assembly 600 and is rotatably connected to the first rotating shaft 602; the first wall portion 712 is connected to the outer surface of the hollow shaft 711; the second wall portion 713 is connected to the outer surface of the hollow shaft 711 and is set at an angle to the first wall portion 712. The radial dimensions of the first wall portion 712 and the second wall portion 713 in the rotation plane of the stirring assembly 500 are greater than or equal to the distance between the third feed port 502 and the rotation center of the stirring assembly 500, and their projections in the arrangement direction of the stirring antenna 710 and the stirring assembly 500 cover the first feed port 102.

[0079] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A microwave heating device, characterized in that, The microwave heating device includes: The main body is provided with a receiving cavity and a first feed port communicating with the receiving cavity, the first feed port being configured to feed microwaves into the receiving cavity; A rotating assembly is disposed on the same side as the first feed port and within the receiving cavity; A drive component is rotatably connected to the rotating component, and the drive component is configured to move back and forth along a first direction to drive the rotating component to rotate. Wherein, the first direction is parallel to the rotation plane of the rotating assembly; The rotating assembly includes either a rotating disk assembly or a stirring antenna. The rotating assembly is provided with a third feed port, and an adjusting member is provided at the third feed port to adjust the opening degree of the third feed port.

2. The microwave heating device according to claim 1, characterized in that, The driving component includes: The rack is configured to reciprocate along the first direction; The gear is rotatably connected to the rack; A second rotating shaft, one end of which is connected to the gear, and the other end of which is connected to the rotating assembly, wherein the gear rotates on its own when the rack moves to drive the rotating assembly to rotate.

3. The microwave heating device according to claim 2, characterized in that, The driving component also includes: A first magnet is disposed at one end of the rack in the first direction and connected to the rack; The first coil is located on one side of the first magnet component; The first coil is configured to carry current so that it generates a magnetic polarity that is in the same or opposite direction as the first magnet, thereby the first magnet and the first coil cooperate to drive the rack to move back and forth along the first direction.

4. The microwave heating device according to claim 3, characterized in that, The driving component also includes: The second coil is located on the side of the first magnet component opposite to the first coil, and there is a preset moving distance between the second coil and the first coil in the first direction; The second coil is configured to carry current so that it generates a magnetic polarity that is in the same or opposite direction to that of the first magnet.

5. The microwave heating device according to claim 4, characterized in that, The driving component also includes: The second magnet is disposed between the second coil and the first magnet, and the second coil and the second magnet are disposed at the other end of the rack in the first direction, and the middle part of the rack is rotatably connected to the gear.

6. The microwave heating device according to claim 3, characterized in that, The driving component also includes: An elastic element, one end of which is connected to the main body, and the other end of which is connected to one end of the rack in the first direction.

7. The microwave heating device according to claim 2, characterized in that, The rotating assembly includes: A stirring antenna is connected to the other end of the second rotating shaft; The stirring antenna and the driving assembly are both located at the bottom of the accommodating cavity.

8. The microwave heating device according to claim 7, characterized in that, The stirring antenna is provided with at least one fourth feed port, which is used to feed microwaves fed in from the first feed port.

9. The microwave heating device according to claim 7, characterized in that, The microwave heating device also includes: A microwave generator is disposed on the side of the main body and is used to generate microwaves; The waveguide is connected to the microwave generator and the first feed port respectively. The waveguide includes a first section and a second section that are connected to each other. The second section is located at the bottom of the main body and extends along the first direction. The first section is located on the side of the main body and its extension direction is perpendicular to the first direction.

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