Cooking equipment

Abstract

The utility model belongs to the technical field of kitchen ware, and discloses cooking equipment which comprises an inner container, a microwave transmitting module and a microwave transmission piece, a cooking cavity is defined by the inner container, and a plurality of microwave inlets are formed in the inner container at intervals; the microwave transmitting module is arranged outside the inner container, and the microwave transmitting module is provided with a plurality of microwave transmitting ports; a plurality of microwave transmission pieces are arranged, the plurality of microwave transmission pieces are mounted at the plurality of microwave inlets in a one-to-one correspondence manner, and the plurality of microwave transmission pieces are connected with the plurality of microwave emission ports in a one-to-one correspondence manner; and microwaves emitted by the microwave emission port are transmitted into the cooking cavity through the microwave transmission piece. When the cooking equipment works, the microwave emission ports can emit microwaves at the same time, and the microwaves are transmitted into the cooking cavity through the microwave transmission pieces together, so that microwave energy in the cooking cavity is distributed more uniformly, the phenomena that the microwave energy in a local area is too strong and the microwave energy in the local area is too weak are avoided, the heating uniformity of food is improved, and the cooking efficiency is improved. The cooking effect is improved, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchenware, in particular to a cooking device. Background Art

[0002] Cooking equipment such as microwave ovens and ovens with microwave functions usually include a microwave emission source and a microwave conductive element. A microwave feed port is provided on the inner pot of the cooking equipment, and the microwave conductive element is installed at the microwave feed port so that the microwaves emitted by the microwave emission source are transmitted to the inner pot through the microwave conductive element to heat the food in the inner pot. Exemplarily, the microwave emission source is a magnetron, and the microwave conductive element is a waveguide, and the microwaves emitted by the magnetron are transmitted to the inner pot through the waveguide.

[0003] Existing cooking devices only have one microwave feed port, and microwaves are transmitted to the inner pot through the microwave conductive element at the microwave feed port, resulting in extremely uneven distribution of microwave energy in the inner pot, affecting the uniformity of heating of food, resulting in poor cooking effect and poor user experience.

[0004] Therefore, a new cooking device is urgently needed to solve the above problems existing in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a cooking device that can improve the uniformity of distribution of microwave energy in an inner pot, improve the uniformity of heating food, improve the cooking effect, and enhance the user experience.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cooking device is provided, comprising:

[0008] An inner pot surrounds a cooking cavity, and a plurality of microwave inlets are arranged at intervals on the inner pot;

[0009] A microwave transmitting module is arranged outside the inner container, and the microwave transmitting module has a plurality of microwave transmitting ports;

[0010] A plurality of microwave transmission elements are provided, the plurality of microwave transmission elements are installed at the plurality of microwave entrances in a one-to-one correspondence, and the plurality of microwave transmission elements are connected to the plurality of microwave emission ports in a one-to-one correspondence;

[0011] The microwaves emitted by the microwave emitting port are transmitted to the cooking cavity through the microwave transmission element.

[0012] As a preferred solution of the cooking device provided by the utility model, the inner pot includes a plurality of pot walls, the plurality of pot walls are arranged to surround the cooking cavity, and the plurality of microwave transmission elements are arranged on the same pot wall.

[0013] As a preferred solution of the cooking device provided by the utility model, the inner pot includes a plurality of pot walls, the plurality of pot walls are arranged to surround the cooking cavity, and the plurality of microwave transmission elements are respectively arranged on different pot walls.

[0014] As a preferred embodiment of the cooking device provided by the utility model, the multiple bile walls include a top wall, a bottom wall and multiple side walls, the multiple side walls are connected between the top wall and the bottom wall, at least one microwave transmission component is arranged on the top wall, and at least one microwave transmission component is arranged on the side wall.

[0015] As a preferred solution of the cooking device provided by the utility model, a plurality of the microwave transmission components are arranged on the same wall of the cooking pot, and the plurality of the microwave transmission components are located on the same side of the microwave emission module.

[0016] As a preferred solution of the cooking equipment provided by the utility model, the microwave transmission component includes an antenna assembly, the antenna assembly includes a first connecting part and a radiation bracket, the radiation bracket is located in the cooking cavity, the first connecting part is penetrated through the microwave entrance, one end of the first connecting part is connected to the microwave emitting port, and the other end is connected to the radiation bracket.

[0017] As a preferred solution of the cooking device provided by the utility model, the radiation bracket includes a first bracket and a second bracket, and the first bracket and the second bracket are respectively connected to two sides of the first connecting part.

[0018] As a preferred solution of the cooking device provided by the utility model, the antenna assembly also includes a mounting plate, the mounting plate is fixedly connected to the inner wall of the inner pot, the first connecting portion passes through the mounting plate and extends out of the microwave inlet, and the radiation bracket is fixedly connected to the side of the mounting plate away from the inner wall of the inner pot.

[0019] As a preferred solution of the cooking device provided by the utility model, the inner wall of the inner pot is recessed with a receiving groove, and the mounting plate is fixedly connected to the bottom wall surface of the receiving groove.

[0020] As a preferred embodiment of the cooking device provided by the utility model, the microwave transmission component includes a waveguide tube, which is arranged outside the inner pot and covers the microwave inlet, and a coaxial cable is connected between the microwave emission port and the waveguide tube. The microwaves emitted by the microwave emission port are transmitted to the waveguide tube through the coaxial cable and are reflected into the cooking cavity through the inner wall of the waveguide tube.

[0021] Beneficial effects of the utility model:

[0022] In the cooking device provided by the utility model, multiple microwave transmission components are installed at multiple microwave entrances in a one-to-one correspondence, and the multiple microwave transmission components are connected to the multiple microwave emission ports of the microwave emission module in a one-to-one correspondence. When the cooking device is working, the multiple microwave emission ports can emit microwaves at the same time, and the microwaves are transmitted to the cooking cavity through the multiple microwave transmission components, so that the distribution of microwave energy in the cooking cavity is more uniform, avoiding the phenomenon of excessive microwave energy in local areas and excessive microwave energy in local areas, improving the uniformity of heating food, improving the cooking effect, and enhancing the user experience. In other words, the cooking device transmits microwaves to the inner pot at the same time through multiple microwave entrances arranged at intervals, effectively improving the defect of uneven microwave energy in the inner pot of the existing cooking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the arrangement of components on the top of the inner pot of a cooking device provided by a specific embodiment of the utility model;

[0024] Figure 2 This is a first view of the cooking device provided in the first embodiment of the present utility model;

[0025] Figure 3 This is a second view of the cooking device provided in the first embodiment of the present utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the antenna assembly provided in Embodiment 1 and Embodiment 2 of the present utility model;

[0027] Figure 5 This is a third view of the cooking device provided in the first embodiment of the present utility model;

[0028] Figure 6 This is a fourth view of the cooking device provided in the first embodiment of the present utility model;

[0029] Figure 7 This is a first view of the cooking device provided in the second embodiment of the present utility model;

[0030] Figure 8 This is a second view of the cooking device provided in the second embodiment of the present utility model;

[0031] Fig. 9 This is a third view of the cooking device provided in the second embodiment of the present utility model;

[0032] Fig.10 This is a fourth view of the cooking device provided in the second embodiment of the present utility model;

[0033] Fig.11 It is a structural schematic diagram of a cooking device provided in Embodiment 3 of the present utility model;

[0034] Fig.12It is a schematic diagram of the structure of the waveguide provided by the third and fourth embodiments of the utility model;

[0035] Fig.13 It is a cross-sectional view of the waveguide provided by the third and fourth embodiments of the present utility model;

[0036] Fig.14 This is a first view of the cooking device provided by the fourth embodiment of the present utility model;

[0037] Fig.15 This is a second view of the cooking device provided in Embodiment 4 of the present utility model.

[0038] In the figure:

[0039] 1. Inner tank; 2. Microwave transmitting module; 3. Microwave transmission component; 4. Fastener; 5. DC source; 6. Control module; 7. Coaxial cable; 8. Heating coil; 9. Machine body; 10. Installation space;

[0040] 11. cooking cavity; 12. top wall; 13. bottom wall; 14. side wall; 15. receiving groove; 16. convex hull;

[0041] 21. Microwave transmitting port;

[0042] 30. Antenna assembly; 31. First connecting portion; 32. Radiating bracket; 33. Mounting plate; 34. Mounting ring; 35. Waveguide; 36. Second cable connector;

[0043] 311, first cable connector; 312, first axis; 313, second axis;

[0044] 321, a first bracket; 322, a second bracket;

[0045] 3211, a first radiation rod; 3212, a second radiation rod;

[0046] 3221, first arched portion; 3222, second arched portion; 3223, straight portion; 3224, third arched portion;

[0047] 331, connection hole;

[0048] 351. Waveguide cavity; 352. Flanged edge structure. DETAILED DESCRIPTION

[0049] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0053] like Figure 1 As shown, the embodiment of the utility model provides a cooking device, which can improve the uniformity of distribution of microwave energy in the inner pot 1, improve the uniformity of heating food, improve the cooking effect, and enhance the user experience.

[0054] Specific reference Figure 1The cooking device includes an inner pot 1, a microwave transmitting module 2 and a microwave transmission element 3. The inner pot 1 encloses a cooking cavity 11 for placing food, and an opening for taking food is provided on the front side of the inner pot 1. A plurality of microwave inlets are arranged at intervals on the inner pot 1. The microwave transmitting module 2 is arranged outside the inner pot 1, and the microwave transmitting module 2 has a plurality of microwave transmitting ports 21; a plurality of microwave transmission elements 3 are provided, and the plurality of microwave transmission elements 3 are installed at the plurality of microwave inlets in a one-to-one correspondence, and the plurality of microwave transmission elements 3 are connected to the plurality of microwave transmitting ports 21 in a one-to-one correspondence. That is, a microwave transmission element 3 is installed at each microwave inlet, and the microwave transmission element 3 is connected to a microwave transmitting port 21, and the microwaves emitted by the microwave transmitting port 21 are transmitted to the cooking cavity 11 through the microwave transmission element 3.

[0055] In the above cooking device, multiple microwave transmission elements 3 are installed at multiple microwave entrances in a one-to-one correspondence, and multiple microwave transmission elements 3 are connected to multiple microwave emission ports 21 of the microwave emission module 2 in a one-to-one correspondence. When the cooking device is working, multiple microwave emission ports 21 can emit microwaves at the same time, and the microwaves are transmitted to the cooking cavity 11 through multiple microwave transmission elements 3, so that the distribution of microwave energy in the cooking cavity 11 is more uniform, avoiding the phenomenon of excessive microwave energy in local areas and excessive microwave energy in local areas, improving the uniformity of heating food, improving the cooking effect, and enhancing the user experience. In other words, the cooking device transmits microwaves to the inner pot 1 at the same time through multiple microwave entrances arranged at intervals, which effectively improves the defect of uneven microwave energy in the inner pot 1 of the existing cooking device.

[0056] The cooking device also includes a DC source 5, a control module 6 and a plurality of coaxial cables 7. The microwave transmitting module 2, the DC source 5 and the control module 6 are all installed on the top of the inner pot 1. The DC source 5 is connected to the microwave transmitting module 2 through a wiring harness, and the microwave transmitting module 2 is connected to the control module 6 through a wiring harness. Each microwave transmitting port 21 is connected to the corresponding microwave transmission element 3 through a coaxial cable 7. The alternating current is converted by the AC-DC module of the DC source 5 and transmitted to the microwave transmitting module 2 for power supply. The microwaves emitted by the microwave transmitting module 2 through the microwave transmitting port 21 are transmitted to the plurality of microwave transmission elements 3 through the plurality of coaxial cables 7, and the microwave transmission elements 3 then transmit the microwaves to the inside of the cooking cavity 11.

[0057] Optionally, the microwave emission module 2 is a solid-state source module, whose frequency, phase, power and other parameters are adjustable, modular installation is simple and convenient, easy to control, and communication connection with the control module 6 can realize monitoring and adjustment of various parameters. The microwaves emitted by the microwave emission port 21 on the solid-state source module are swept and phased to improve the uniformity of the microwaves in the cooking cavity 11, thereby improving the cooking effect.

[0058] Optionally, the solid-state source module has two microwave emission ports 21, and accordingly, two coaxial cables 7 and two microwave transmission components 3 are provided. Two microwave inlets are also provided on the inner tank 1. The two microwave emission ports 21 are each connected to a microwave transmission component 3 through a coaxial cable 7 to realize microwave transmission.

[0059] The solid-state source module has frequency modulation and phase modulation functions. For example, the two microwave emission ports 21 are respectively the first emission port and the second emission port. The microwave output from the first emission port is: frequency F1, power P1, phase Φ1; the microwave output from the second emission port is: frequency F2, power P2, phase Φ2.

[0060] When the microwave frequency F1 of the first transmitting port and the microwave frequency F2 of the second transmitting port are equal, that is, the center frequency F1=F2=915MHz (frequency range 902MHz-928MHz) or F1=F2=2450MHz (frequency range 2400MHz-2500MHz). The control module 6 controls the first transmitting port and the second transmitting port to perform frequency sweeping settings, and the first transmitting port and the second transmitting port independently sweep the frequency according to the frequency range; the adjustment range of the phase Φ1 of the first transmitting port and the phase Φ2 of the second transmitting port is 0-360, and the range of the phase difference ΔΦ between the phase Φ1 and the phase Φ2 is 0-180 degrees, and a constant or variable phase difference is set for phase adjustment.

[0061] When the microwave frequency F1 of the first transmitting port and the microwave frequency F2 of the second transmitting port are not equal, that is, the center frequency F1=915MHz (frequency range 902MHz-928MHz), F2=2450MHz (frequency range 2400MHz-2500MHz), or F1=2450MHz (frequency range 2400MHz-2500MHz), F2=915MHz (frequency range 902MHz-928MHz); the control module 6 controls the first transmitting port and the second transmitting port to perform frequency sweep setting, and the first transmitting port and the second transmitting port independently sweep according to the frequency range.

[0062] like Figure 2 and Figure 3 As shown, the inner pot 1 includes a plurality of pot walls, and the plurality of pot walls are arranged to form the above-mentioned cooking cavity 11.

[0063] In some embodiments, multiple microwave transmission elements 3 are arranged on the same wall of the cooking pot. While realizing that multiple microwave transmission elements 3 transmit microwaves into the cooking cavity 11 at the same time, multiple microwave transmission elements 3 are concentratedly arranged on the same wall of the cooking pot, so that the cooking device structure is more compact, and only space for installing multiple microwave transmission elements 3 is reserved on the same wall of the cooking pot.

[0064] In some embodiments, a plurality of microwave transmission elements 3 are respectively disposed on different walls of the cooking chamber to transmit microwaves into the cooking cavity 11 from different directions, so that all sides of the food can receive microwave energy, thereby improving the uniformity of food heating.

[0065] Exemplarily, the inner pot 1 includes five pot walls, including a top wall 12, a bottom wall 13 and three side walls 14. The three side walls 14 are respectively a left side wall and a right side wall arranged opposite to each other, and a rear side wall connected between the left side wall and the right side wall. The left side wall, the right side wall and the rear side wall are all connected between the top wall 12 and the bottom wall 13 to enclose and form the above-mentioned cooking cavity 11. Food can be placed directly on the bottom wall 13 or on the bottom wall 13 through a tray, tableware, etc. In some other embodiments, the number of side walls 14 of the inner pot 1 may not be the same as the above-mentioned solution.

[0066] In some embodiments, at least one microwave transmission element 3 is disposed on the top wall 12, and at least one microwave transmission element 3 is disposed on the side wall 14. The microwave transmission element 3 on the top wall 12 transmits microwave energy from the top of the food, and the microwave transmission element 3 on the side wall 14 transmits microwave energy from the side of the food, so that both the top and the side of the food have sufficient microwave energy, thereby improving the uniformity of microwave distribution.

[0067] When a microwave transmitting module 2 and a plurality of microwave transmission elements 3 are arranged on the same wall of the bile, the plurality of microwave transmission elements 3 are located on the same side of the microwave transmitting module 2. Before the microwave transmitting module 2 is arranged, the shape and position of the coaxial cables 7 connected to the plurality of microwave transmission elements 3 have been adjusted, and the various parameters of the coaxial cables 7 have been adjusted to the best. Therefore, when the microwave transmitting module 2 is arranged, the positions of the plurality of microwave transmission elements 3 should be avoided as much as possible (if the positions of the microwave transmission elements 3 are changed, the shapes and parameters of the coaxial cables 7 need to be readjusted), and the coaxial cables 7 should be avoided from being adjusted twice. The microwave transmitting module 2 is arranged on one side of the plurality of microwave transmission elements 3, and the plurality of microwave transmitting ports 21 of the microwave transmitting module 2 are directed toward the plurality of microwave transmission elements 3, so as to realize the connection between the coaxial cables 7 and the microwave transmitting ports 21 without changing the positions of the microwave transmission elements 3 and without adjusting the coaxial cables 7 twice. In other words, without changing the positions of the microwave transmission elements 3 and without changing the shape and position of the coaxial cables 7, the installation position of the microwave transmitting module 2 is adapted to the plurality of microwave transmission elements 3 and the coaxial cables 7.

[0068] The inventive concept of the present utility model is further described below with reference to several embodiments.

[0069] Embodiment 1

[0070] like Figures 1 to 3FIG. 1 is a schematic diagram of a cooking device provided in this embodiment. In this embodiment, a plurality of microwave transmission elements 3 are arranged on the same wall of the inner pot 1, and the microwave transmission element 3 includes: Figure 4 The antenna assembly 30 shown is connected to the coaxial cable 7 to radiate microwaves into the inner container 1 .

[0071] Specifically, see Figure 4 The antenna assembly 30 includes a first connection portion 31 and a radiation bracket 32. The radiation bracket 32 ​​is located in the cooking cavity 11. The first connection portion 31 is arranged at the microwave entrance. One end of the first connection portion 31 is connected to the end of the coaxial cable 7 away from the microwave emission port 21, and the other end is connected to the radiation bracket 32. The microwave output from the microwave emission port 21 is transmitted to the first connection portion 31 of the antenna assembly 30 through the coaxial cable 7. The first connection portion 31 then transmits the microwave to the radiation bracket 32 ​​inside the inner pot 1. The radiation bracket 32 ​​is used to radiate the microwave into the inner pot 1.

[0072] Optionally, the first connecting part 31 includes a first cable connector 311, a first axis 312 and a second axis 313 connected in sequence, the first cable connector 311 extends out of the microwave entrance and is connected to an end of the coaxial cable 7 away from the microwave transmitting port 21 to receive microwaves; the first axis 312 and the second axis 313 are located inside the inner pot 1, and the second axis 313 is connected to the radiation bracket 32 ​​to transmit the microwaves received by the first cable connector 311 to the radiation bracket 32, so that the radiation bracket 32 ​​radiates the microwaves into the inner pot 1.

[0073] The diameter of the first shaft 312 is smaller than the diameter of the second shaft 313. This configuration allows the microwave frequency fed into the inner pot 1 to match the frequency output by the microwave emission port 21, thereby stimulating microwave energy that meets the set requirements. For example, the diameter of the first shaft 312 is 3 mm to 5 mm, and the diameter of the second shaft 313 is 5 mm to 10 mm.

[0074] Optionally, the radiation bracket 32 ​​includes a first bracket 321 and a second bracket 322, and the first bracket 321 and the second bracket 322 are respectively connected to the two sides of the second axis 313 of the first connecting part 31, so that the microwaves transmitted by the first connecting part 31 are diffused to the first bracket 321 and the second bracket 322 on both sides to increase the radiation area of ​​the microwaves and improve the uniformity of the microwave energy.

[0075] Exemplarily, the first bracket 321 and the second bracket 322 are disposed on both sides of the second axis 313 along the diameter direction to expand the extension range as much as possible and increase the microwave radiation area.

[0076] See also Figure 4The first bracket 321 includes a first radiation rod 3211 and a second radiation rod 3212. The first radiation rod 3211 is connected to the inner pot 1, and the first radiation rod 3211 and the second radiation rod 3212 are connected at an angle. The second radiation rod 3212 is spaced apart from the inner wall of the inner pot 1 and is connected to the second axis 313 of the first connection portion 31. The radiation bracket 32 ​​is fixed in the inner pot 1 by connecting the first radiation rod 3211 to the inner wall of the inner pot 1. There is a gap between the second radiation rod 3212 and the inner wall of the inner pot 1 to avoid interference with microwave transmission.

[0077] The second bracket 322 is spaced from the inner wall of the inner pot 1 to avoid interfering with the transmission of microwaves. Moreover, the second bracket 322 extends in a curved shape. Under the premise of minimizing the occupied space, the radiation area of ​​the microwaves can be increased, so that the second bracket 322 radiates microwaves to a larger area, thereby improving the uniformity of microwave energy in the inner pot 1.

[0078] For example, see Figure 4 The second bracket 322 includes a first arched portion 3221, a second arched portion 3222, a straight portion 3223 and a third arched portion 3224 which are connected in sequence, wherein one end of the first arched portion 3221 away from the second arched portion 3222 is connected to the second axis 313, the first arched portion 3221 and the second arched portion 3222 have opposite bending directions, forming an approximately S-shaped structure, the straight portion 3223 extends along the tangent direction of the second arched portion 3222, and the third arched portion 3224 bends in a direction close to the second axis 313. That is, the entire second bracket 322 is in a hook shape, which can increase the radiation area of ​​microwaves while minimizing the occupied space.

[0079] Continue reading Figure 4 The antenna assembly 30 also includes a mounting plate 33, which is fixedly connected to the inner wall of the inner pot 1. The first connecting portion 31 passes through the mounting plate 33 and extends out of the microwave inlet to connect with the coaxial cable 7. The first radiation rod 3211 of the radiation bracket 32 ​​is fixedly connected to the side of the mounting plate 33 away from the inner wall of the inner pot 1. The entire antenna assembly 30 can be fixedly connected to the inner pot 1 through the mounting plate 33, and the radiation bracket 32 ​​is located inside the inner pot 1. Specifically, the mounting plate 33 is a flange plate, and a plurality of connection holes 331 are arranged on it along the circumference. Figure 3 The antenna assembly 30 can be fixed by passing the fastener 4 through the connection hole 331 and the inner wall of the liner 1 and threadedly connected with the nut. The fastener 4 is preferably a bolt.

[0080] Furthermore, one end of the first radiation rod 3211 away from the second radiation rod 3212 is bent and connected to a mounting ring 34, and the mounting ring 34 is coaxially connected to the side of the mounting plate 33 facing away from the inner wall of the inner tank 1, ensuring that there is a sufficient connection area between the entire radiation bracket 32 ​​and the mounting plate 33, thereby improving the connection stability. The first axis 312 of the first connecting portion 31 is coaxially arranged in the mounting ring 34.

[0081] See also Figure 5 The inner wall of the inner pot 1 is recessed with a receiving groove 15, and the mounting plate 33 is fixedly connected to the bottom wall of the receiving groove 15 to prevent the radiation bracket 32 ​​from occupying a large space in the cooking cavity 11 and to prevent the space in the inner pot 1 from being reduced due to the arrangement of the antenna assembly 30.

[0082] In this embodiment, multiple antenna assemblies 30 are arranged on the top wall 12 of the inner pot 1, and microwave energy is transmitted from the top of the food, so as to achieve a better cooking effect. Specifically, a convex bump 16 is formed upward on the top wall 12 of the inner pot 1 to form the above-mentioned receiving groove 15 on the inner wall of the inner pot 1.

[0083] In this embodiment, the first radiation rod 3211 , the first axis 312 and the second axis 313 are all perpendicular to the mounting plate 33 , and the second radiation rod 3212 and the second bracket 322 are all parallel to the mounting plate 33 , so that the radiation effect of microwaves is better.

[0084] The total length of the first radiation rod 3211, the second radiation rod 3212 and the second bracket 322 is 1 / 4λ, where λ is the working wavelength of the microwave in the cooking device, that is, the total length of the radiation bracket 32 ​​is 1 / 4λ. At this time, the transmission and receiving conversion efficiency of the antenna assembly 30 is the highest.

[0085] For example, two antenna assemblies 30 are provided on the top wall 12 of the inner container 1, which improves the uniformity of microwave energy while reducing the number of components and the cost. Figure 3 By optimizing the microwave impedance adjustment through simulation, when on the same wall of the cooking pot, the distance L between the two antenna assemblies 30 is ≧190 mm, which can reduce the interference and influence between the two antenna assemblies 30 and make the microwave cooking device run more stably. Specifically, the spacing L between the central axes of the two antenna assemblies 30 (the axes of the first axis 312 and the second axis 313, which are also the axes of the mounting plate 33 and the mounting ring 34) is ≧190 mm.

[0086] When arranging the two antenna assemblies 30 , it is only necessary to ensure that the center distance is ≧190 mm, and the positions are not restricted. Exemplarily, the two antenna assemblies 30 are arranged symmetrically about the center of the top wall 12 of the inner container 1 .

[0087] See also Figure 5In the radiation brackets 32 of the two antenna assemblies 30, the bending directions of the second brackets 322 are opposite, which can make the two radiation brackets 32 more dispersed, so that the energy radiated by the antenna assembly 30 is more evenly distributed in the cooking cavity 11.

[0088] like Figure 6 As shown, a heating coil 8 is arranged on the top wall 12 inside the inner pot 1, and the heating coil 8 can also emit heat to heat the food. The heating coil 8 and the microwave combination heat the food together, which can increase the heating rate of the food and make the food reach the cooking effect quickly. Exemplarily, the heating coil 8 is arranged around the two antenna assemblies 30.

[0089] The shortest distance between the antenna assembly 30 and the heating coil 8 is greater than or equal to 1 / 4λ, where λ is the working wavelength of the microwave in the cooking device, so as to avoid mutual interference between the antenna assembly 30 and the heating coil 8 and improve the uniformity of heat distribution.

[0090] Exemplarily, the first shaft 312 , the second shaft 313 and the radiation bracket 32 ​​are all made of metal materials and have good microwave transmission and radiation capabilities.

[0091] In this embodiment, the two antenna assemblies 30 and the microwave transmitting module 2 are both located on the same wall of the bile, and the two antenna assemblies 30 are located on the same side of the microwave transmitting module 2. Without changing the position of the microwave transmission element 3 and the shape and position of the coaxial cable 7, the installation position of the microwave transmitting module 2 is adapted to multiple microwave transmission elements 3 and coaxial cables 7.

[0092] Embodiment 2

[0093] like Figures 7 to 10 As shown, this embodiment provides a cooking device, which is different from the first embodiment in that, in this embodiment, a plurality of antenna components 30 are disposed on different walls of the inner pot 1 .

[0094] For example, see Figure 7 and Figure 8 Two antenna assemblies 30 are provided, one of which is provided on the top wall 12, and the other antenna assembly 30 is provided on the side wall 14, so as to transmit microwave energy from the top wall 12 and the side wall 14 of the food, thereby ensuring a better cooking effect on the food.

[0095] In some embodiments, other components may be arranged on the right side wall and the rear side wall, and there is insufficient space for installing the antenna assembly 30. Therefore, another antenna assembly 30 may be disposed on the left side wall.

[0096] In some other embodiments, another antenna assembly 30 may also be arranged on the right side wall or the rear side wall.

[0097] Exemplarily, the antenna assembly 30 is installed at the center position of the corresponding pot wall, so that the microwave energy is transmitted from the center position, thereby making the microwave energy distribution in the inner pot 1 more uniform.

[0098] See also Figure 8 The structure of the antenna assembly 30 in this embodiment may be consistent with that in the first embodiment. The central axes of the two antenna assemblies 30 are perpendicular.

[0099] See also Fig. 9 In this embodiment, a heating coil 8 is disposed inside the top wall 12 of the inner pot 1. The heating coil 8 is disposed around the antenna assembly 30 disposed on the top wall 12, and is used in combination with the antenna assembly 30 to heat food and speed up cooking. The closest distance between the antenna assembly 30 on the top wall 12 and the heating coil 8 is also greater than or equal to 1 / 4λ.

[0100] See also Fig.10 The cooking device further comprises a body 9, and the inner pot 1 is arranged inside the body 9, and there is a gap between the inner pot 1. There is a gap between the body 9 and the top wall 12 of the inner pot 1 to form an installation space 10 for accommodating components such as the microwave transmitting module 2, the DC source 5, and the antenna assembly 30.

[0101] In some embodiments, a plurality of antenna assemblies 30 may also be disposed on the top wall 12 and the side wall 14 , respectively.

[0102] Embodiment 3

[0103] See also Fig.11 This embodiment provides a cooking device, which is different from Embodiment 1 and Embodiment 2 in that, in this embodiment, multiple microwave transmission components 3 are located on the same wall of the inner pot 1, and the microwave transmission component 3 includes a waveguide component, which is connected to an end of the coaxial cable 7 away from the microwave emitting port 21 to transmit the microwave to the inside of the inner pot 1.

[0104] Specifically, the waveguide assembly includes a waveguide tube 35, which is disposed outside the inner pot 1 and covers a microwave inlet. The microwave energy emitted by the microwave emission port 21 is transmitted to the waveguide tube 35 and reflected into the cooking cavity 11 through the inner wall of the waveguide tube 35. Fig.13 and Fig.14 The waveguide assembly also includes a second connecting portion, which includes a second cable connector 36 and a conducting portion. The second cable connector 36 is located outside the waveguide tube 35 and is connected to the coaxial cable 7. The second cable connector 36 is connected to the conducting portion. The conducting portion passes through the side wall 14 of the waveguide tube 35 and extends into the waveguide cavity 351 of the waveguide tube 35 to conduct microwaves into the waveguide cavity 351. The microwaves are reflected by the inner wall of the waveguide tube 35 and then enter the cooking cavity 11.

[0105] In this embodiment, the microwaves emitted by the microwave emission port 21 are transmitted to the waveguide cavity 351 of the waveguide tube 35 through the coaxial cable 7 , and are reflected into the cooking cavity 11 through the inner wall of the waveguide tube 35 .

[0106] The opening size of the waveguide 35 is not less than the size of the microwave inlet, so that the waveguide 35 can completely cover the microwave inlet to avoid microwave leakage.

[0107] See also Fig.12 and Fig.13 A circle of flange structure 352 is provided at the opening of the waveguide 35 , and the waveguide 35 is installed on the inner tank 1 through the flange structure 352 .

[0108] In this embodiment, the two waveguides 35 are installed outside the top wall 12 of the inner pot 1, and the microwave energy is transmitted from the top 12 of the food, so that the cooking effect is better.

[0109] In this embodiment, a heating coil 8 may also be provided in the top wall 12 of the inner pot 1. The heating coil 8 is arranged around the two microwave inlets and is used in combination with the waveguide 35 to provide energy to heat the food.

[0110] Embodiment 4

[0111] like Fig.14 and Fig.15 As shown, this embodiment provides a cooking device, which is different from the third embodiment in that the multiple waveguide components in this embodiment are respectively arranged on different walls of the inner pot 1.

[0112] Exemplarily, a waveguide 35 is provided on the top wall 12 of the inner pot 1, and a waveguide 35 is provided on the left side wall. At the same time, microwave energy is transmitted from the top wall 12 and the side wall 14 of the inner pot 1 to the cooking cavity 11, so that the microwave energy distribution in the inner pot 1 is more uniform, thereby improving the cooking effect.

[0113] See also Fig.15 In this embodiment, a heating coil 8 is arranged inside the top wall 12 of the inner pot 1 , and the heating coil 8 is arranged outside the microwave inlet of the top wall 12 .

[0114] Optionally, the waveguide tube 35 on the top wall 12 and the waveguide tube 35 on the left side wall are both arranged at a central position, which is beneficial to further improve the uniformity of microwave energy distribution in the inner pot 1.

[0115] In some other embodiments, of course, multiple waveguide tubes 35 may be provided on both the top wall 12 and the side wall 14 .

[0116] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A cooking device, characterized in that: include: An inner pot (1) encloses a cooking cavity (11), and a plurality of microwave inlets are arranged at intervals on the inner pot (1); A microwave transmitting module (2) is arranged outside the inner container (1), and the microwave transmitting module (2) has a plurality of microwave transmitting ports (21); A plurality of microwave transmission elements (3) are provided, the plurality of microwave transmission elements (3) are installed at the plurality of microwave entrances in a one-to-one correspondence, and the plurality of microwave transmission elements (3) are connected to the plurality of microwave emission ports (21) in a one-to-one correspondence; The microwaves emitted by the microwave emission port (21) are transmitted to the cooking cavity (11) through the microwave transmission element (3).

2. The cooking device according to claim 1, characterized in that: The inner pot (1) comprises a plurality of pot walls, the plurality of pot walls are arranged to surround and form the cooking cavity (11), and the plurality of microwave transmission elements (3) are arranged on the same pot wall.

3. The cooking device according to claim 1, characterized in that: The inner pot (1) comprises a plurality of pot walls, the plurality of pot walls are arranged to surround and form the cooking cavity (11), and the plurality of microwave transmission elements (3) are respectively arranged on different pot walls.

4. The cooking device according to claim 3, characterized in that: The plurality of bile walls include a top wall (12), a bottom wall (13) and a plurality of side walls (14); the plurality of side walls (14) are connected between the top wall (12) and the bottom wall (13); at least one microwave transmission element (3) is arranged on the top wall (12); and at least one microwave transmission element (3) is arranged on the side wall (14).

5. The cooking device according to any one of claims 2 to 4, characterized in that: A plurality of the microwave transmission components (3) are arranged on the same bile wall, and the plurality of the microwave transmission components (3) are located on the same side of the microwave emission module (2).

6. The cooking device according to any one of claims 1 to 4, characterized in that: The microwave transmission element (3) comprises an antenna assembly (30), wherein the antenna assembly (30) comprises a first connecting portion (31) and a radiation bracket (32), wherein the radiation bracket (32) is located in the cooking cavity (11), wherein the first connecting portion (31) is arranged through the microwave entrance, wherein one end of the first connecting portion (31) is connected to the microwave emission port (21), and the other end is connected to the radiation bracket (32).

7. The cooking device according to claim 6, characterized in that The radiation bracket (32) comprises a first bracket (321) and a second bracket (322), wherein the first bracket (321) and the second bracket (322) are respectively connected to two sides of the first connection portion (31).

8. The cooking device according to claim 6, characterized in that The antenna assembly (30) further comprises a mounting plate (33), wherein the mounting plate (33) is fixedly connected to the inner wall of the inner container (1), the first connecting portion (31) passes through the mounting plate (33) and extends out of the microwave inlet, and the radiation bracket (32) is fixedly connected to a side of the mounting plate (33) facing away from the inner wall of the inner container (1).

9. The cooking device according to claim 8, characterized in that The inner wall of the inner container (1) is recessed with a receiving groove (15), and the mounting plate (33) is fixedly connected to the bottom wall surface of the receiving groove (15).

10. The cooking device according to any one of claims 1 to 4, characterized in that: The microwave transmission element (3) comprises a waveguide tube (35), the waveguide tube (35) being arranged outside the inner pot (1) and covering the microwave entrance, a coaxial cable (7) being connected between the microwave emission port (21) and the waveguide tube (35), the microwave emitted by the microwave emission port (21) being transmitted to the waveguide tube (35) via the coaxial cable (7), and being reflected into the cooking cavity (11) via the inner wall of the waveguide tube (35).

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