Microwave conduction device and microwave oven

Abstract

The utility model relates to a microwave conduction device and a microwave oven, in particular to the microwave conduction device which comprises a waveguide box, a driving device, a connecting piece and a stirring blade, one end of the waveguide box is used for installing a magnetron, the waveguide box is provided with a guide channel, one end of the guide channel is used for communicating with the magnetron, the connecting piece is rotatably installed at the other end of the waveguide box, the stirring piece is installed on the connecting piece and communicates with the other end of the guide channel, and the driving device is used for driving the connecting piece to rotate; the stirring blade is provided with a through hole and a bent plate, and the bent plate is located on one side of the through hole and is perpendicular to the through hole. The utility model provides the microwave conduction device and the microwave oven according to the content, and solves the problem of non-uniform food heating caused by non-uniform microwave distribution due to different structures of the stirring blades of the microwave conduction device in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave ovens, in particular to a microwave conduction device and a microwave oven. Background Art

[0002] A microwave oven, as a modern cooking stove, has been widely integrated into people's daily lives with its efficient and convenient features. It uses microwaves to heat food, not only with a fast heating speed but also capable of maintaining the humidity and taste of the food, providing great convenience for modern families. When the microwave oven is working, a guiding device is required to conduct microwaves to heat the food.

[0003] However, in the existing microwave conduction devices, due to different structures of the stirring vanes, the microwave distribution is uneven, resulting in uneven heating of the food. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a microwave conduction device and a microwave oven, which solve the problem that in the existing microwave conduction device, due to different structures of the stirring vanes, the microwave distribution is uneven, resulting in uneven heating of the food.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A microwave conduction device includes a waveguide box, a driving device, a connecting piece, and a stirring vane;

[0007] One end of the waveguide box is used for installing a magnetron. The waveguide box is provided with a guiding channel. One end of the guiding channel is used for connecting to the magnetron. The connecting piece is rotatably installed at the other end of the waveguide box. The stirring vane is installed on the connecting piece. The stirring vane is connected to the other end of the guiding channel. The driving device is used to drive the connecting piece to rotate;

[0008] The stirring vane is provided with a through hole and a bending plate. The bending plate is located on one side of the through hole. The bending plate is perpendicular to the through hole.

[0009] Further, the stirring vane is provided with clamping ports. A plurality of clamping ports are evenly spaced along the circumferential direction of the stirring vane. The connecting piece is provided with clamping buckles. A plurality of clamping buckles are evenly spaced along the circumferential direction of the connecting piece. The clamping buckles are clamped in the clamping ports.

[0010] Specifically, the stirring vane is provided with a first clamping hole. The connecting piece is provided with a first clamping post. The first clamping post is clamped in the first clamping hole.

[0011] Preferably, the two through holes are perpendicular to each other. The stirring vane is provided with a second clamping hole. The second clamping hole is located outside the first clamping hole;

[0012] The connecting member is provided with a second clamping post, and the second clamping post is clamped in the second clamping hole, and the second clamping post is located between the two through openings.

[0013] In some embodiments, the connecting member is provided with reinforcing ribs, and a plurality of the reinforcing ribs are uniformly arranged at intervals along the circumferential direction of the connecting member.

[0014] Furthermore, one end of the waveguide box is provided with a waveguide inlet for installing a magnetron;

[0015] The other end of the waveguide box is provided with a waveguide outlet, and the waveguide outlet and the waveguide inlet are communicated through the guiding channel, and the stirring piece is located outside the waveguide outlet.

[0016] A microwave oven with a microwave conduction device includes a microwave oven main body, a high-voltage capacitor, a high-voltage transformer, a magnetron and a microwave conduction device, and at least part of the projection of the driving device on the magnetron and the high-voltage transformer overlaps in the horizontal or vertical direction.

[0017] Furthermore, the left side of the microwave oven main body is a heating cavity, and the right side of the microwave oven main body is an installation cavity;

[0018] It further includes an incoming wave protection plate, the incoming wave protection plate is installed on the microwave oven main body, the incoming wave protection plate is arranged between the heating cavity and the placement cavity, and the material of the incoming wave protection plate is mica sheet.

[0019] Specifically, the microwave oven main body is provided with a clamping groove, the incoming wave protection plate is provided with a clamping piece, the clamping piece is clamped in the clamping groove, the internal height of the heating cavity is M, the overall height of the microwave oven is N, and the range of M:N is 0.6 - 0.8.

[0020] Preferably, the material of the bottom of the heating cavity is stainless steel, the high-voltage capacitor, the high-voltage transformer, the magnetron and the microwave conduction device are respectively arranged in the installation cavity, the magnetron is installed on the microwave conduction device, one end of the high-voltage transformer is electrically connected to the high-voltage capacitor, the other end of the high-voltage transformer is electrically connected to the magnetron, and the microwave conduction device is used to conduct the microwave generated by the magnetron into the heating cavity.

[0021] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0022] 1. Through a waveguide box, a guiding channel, a driving device, a connecting member, and a stirring blade, the microwave generated by the magnetron is guided to the stirring blade through the guiding channel and is dispersed by the stirring blade in a rotating manner, enabling the microwave to be evenly distributed within the cavity of the microwave oven, thereby heating the food in the cavity of the microwave oven evenly.

[0023] 2. Through a through-port and a bending plate, the microwave is dispersed and undergoes scattering and reflection phenomena, thereby changing the propagation path and direction of the microwave, enabling the microwave to be more evenly distributed within the cavity. Further, the bending plate plays a guiding role and can guide the dispersed microwave to propagate towards the cavity of the microwave oven, improving the accuracy of the microwave conduction direction. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of a microwave conduction device according to one embodiment of the present utility model;

[0025] Figure 2 is a schematic structural diagram of a clamping groove according to one embodiment of the present utility model;

[0026] Figure 3 is Figure 2 an enlarged view of part A of

[0027] Figure 4 is a schematic structural diagram of a high-voltage capacitor and a high-voltage transformer according to one embodiment of the present utility model;

[0028] Figure 5 is a schematic structural diagram of a waveguide inlet according to one embodiment of the present utility model;

[0029] Figure 6 is a schematic structural diagram of an incoming-wave protection plate according to one embodiment of the present utility model;

[0030] Figure 7 is a schematic structural diagram of a clamping piece according to one embodiment of the present utility model;

[0031] Wherein: waveguide box 1, guiding channel 11, waveguide inlet 12, waveguide outlet 13, driving device 2, connecting member 3, clamping buckle 31, first clamping column 32, second clamping column 33, reinforcing rib 34, stirring blade 4, through-port 41, bending plate 42, clamping opening 43, first clamping hole 44, second clamping hole 45, microwave oven main body 5, heating cavity 51, installation cavity 52, clamping groove 53, high-voltage capacitor 6, high-voltage transformer 7, magnetron 8, incoming-wave protection plate 9, clamping piece 91. Detailed Embodiment

[0032] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inner side", "outer side", "inner end", "outer end", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features, used to distinguish and describe features, without order or importance. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is more than two.

[0034] In an embodiment of the present utility model, as Figure 1-7As shown in the figure, a microwave conduction device includes a waveguide box 1, a driving device 2, a connecting piece 3, and a stirring piece 4; one end of the waveguide box 1 is used for installing a magnetron 8, the waveguide box 1 is provided with a guiding channel 11, one end of the guiding channel 11 is used for communicating with the magnetron 8, the connecting piece 3 is rotatably installed at the other end of the waveguide box 1, the stirring piece 4 is installed on the connecting piece 3, the stirring piece 4 is communicated with the other end of the guiding channel 11, and the driving device 2 is used for driving the connecting piece 3 to rotate; the stirring piece 4 is provided with a through port 41 and a bending plate 42, the bending plate 42 is located on one side of the through port 41, and the bending plate 42 is perpendicular to the through port 41. In this embodiment, the magnetron 8 is installed at one end of the waveguide box 1, the driving device 2 is installed at the other end of the waveguide box 1, the driving device 2 is a motor, one end of the connecting piece 3 is installed on the output shaft of the driving device 2, the other end of the connecting piece 3 is installed with the stirring piece 4, and the stirring piece 4 is communicated with the magnetron 8 through the guiding channel 11. During operation, the microwave generated by the magnetron 8 enters the guiding channel 11, and is guided to the stirring piece 4 through the guiding channel 11. Then, the driving device 2 drives the connecting piece 3 to rotate, the connecting piece 3 drives the stirring piece 4 to rotate, and the stirring piece 4 scatters the microwave guided out by the conduction channel 11, so that the microwave can be evenly distributed in the microwave oven, and thus the food in the microwave oven can be heated evenly; in this application, through the guiding box 1, the guiding channel 11, the driving device 2, the connecting piece 3, and the stirring piece 4, the microwave generated by the magnetron 8 is guided to the stirring piece 4 through the guiding channel 11 and is scattered by the stirring piece 4 in a rotating manner, so that the microwave can be evenly distributed in the cavity of the microwave oven, and thus the food in the cavity of the microwave oven can be heated evenly. In this embodiment, the numbers of the through port 41 and the bending plate 42 are both two. The bending plate 42 protrudes from the front surface of the stirring piece 4 by bending and forming, and the through port 41 is formed. The front surface of the stirring piece 4 faces the cavity of the microwave oven. During operation, the microwave is conducted to the back surface of the stirring piece 4, and then the microwave passes through the through port 41 and enters the front surface of the stirring piece 4 from the back surface of the stirring piece 4. And in cooperation with the rotation of the stirring piece 4, the microwave is scattered and reflected, so as to change the propagation path and direction of the microwave, so that the microwave can be more evenly distributed in the cavity. Further, the bending plate 42 plays a guiding role and can guide the scattered microwave to propagate towards the cavity of the microwave oven, improving the accuracy of the microwave conduction direction.

[0035] As Figure 2-3As shown, the stirring blade 4 is provided with a clamping port 43, and a plurality of the clamping ports 43 are evenly spaced along the circumferential direction of the stirring blade 4. The connecting member 3 is provided with a clamping buckle 31, and a plurality of the clamping buckles 31 are evenly spaced along the circumferential direction of the connecting member 3. The clamping buckle 31 is clamped in the clamping port 43. In this embodiment, the clamping port 43 is a rectangular structure, and the number of the clamping ports 43 and the clamping buckles 31 is three respectively. When installing the stirring blade 4 on the connecting member 3, specifically, the three clamping buckles 31 are inserted into the clamping port 43, and then by rotating the connecting member 3, the three clamping buckles 31 are clamped in the three clamping ports 43, which is convenient and fast.

[0036] As Figure 2-3 shown, the stirring blade 4 is provided with a first clamping hole 44, and the connecting member 3 is provided with a first clamping post 32. The first clamping post 32 is clamped in the first clamping hole 44. In this embodiment, the number of the first clamping holes 44 and the first clamping posts 32 is three respectively. The three first clamping holes 44 are evenly spaced along the circumferential direction of the stirring blade 4, and the three first clamping posts 32 are evenly spaced along the circumferential direction of the connecting member 3. During the installation process, when the clamping buckle 31 is placed in the clamping port 43, the first clamping post 32 and the first clamping hole 44 are arranged in a dislocation manner. Then, after the clamping buckle 31 is clamped in the clamping port 43 by rotation, the first clamping post 32 is clamped in the first clamping hole 44. At this time, without the action of external force, the first clamping post 32 cannot be disengaged from the first clamping hole 44 by rotation, so as to achieve the purpose of limiting and fixing, and further prevent the clamping buckle 31 from disengaging from the clamping port 43, achieving the effect of improving the installation stability of the stirring blade 4.

[0037] As Figure 2-3 shown, the two through ports 41 are arranged perpendicular to each other. The stirring blade 4 is provided with a second clamping hole 45, and the second clamping hole 45 is located outside the first clamping hole 44. The connecting member 3 is provided with a second clamping post 33, and the second clamping post 33 is clamped in the second clamping hole 45, and the second clamping post 33 is located between the two through ports 41. In this embodiment, the stirring blade 4 is provided with two circles of clamping holes. Three second clamping holes 45 are formed into an outer circle, and three first clamping holes 44 are formed into an inner circle. Specifically, the two through ports 41 are arranged perpendicular to each other, and the two through ports 41 are concentrated in one side area of the stirring blade 4. Affected by centrifugal force or wind resistance, the stirring blade 4 may rotate unevenly and swing. Therefore, the second clamping hole 45 and the second clamping post 33 are respectively arranged, so that the clamping position of the second clamping post 33 is closer to between the two through ports 41, which is beneficial to improving the rotational balance of the stirring blade 4.

[0038] As Figure 1 shown, the connecting member 3 is provided with reinforcing ribs 34, and a plurality of the reinforcing ribs 34 are arranged at equal intervals along the circumferential direction of the connecting member 3. In this embodiment, four of the reinforcing ribs 34 are provided on the outer periphery of the connecting member 3, so that the structural stability of the connecting member 3 can be improved, and it is not easily deformed or cracked.

[0039] As Figure 4-5 shown, one end of the waveguide box 1 is provided with a waveguide inlet 12 for installing the magnetron 8; the other end of the waveguide box 1 is provided with a waveguide outlet 13, and the waveguide outlet 13 and the waveguide inlet 12 are communicated through the guiding channel 11, and the stirring blade 4 is located outside the waveguide outlet 13. In this embodiment, the magnetron 8 is installed at the waveguide inlet 12, and the output end of the magnetron 8 extends into the inner side of the waveguide inlet 12. During operation, the output end of the magnetron 8 generates microwaves, and the microwaves are guided to the waveguide outlet 13 through the guiding channel 11, and then the microwaves are scattered by the stirring blade 4 outside the waveguide outlet 13. Arranging the stirring blade 4 outside the waveguide outlet 13 is beneficial to the conduction of microwaves.

[0040] As Figure 2 and 4As shown in FIGS. 6, a microwave oven with a microwave conduction device includes a microwave oven main body 5, a high-voltage capacitor 6, a high-voltage transformer 7, a magnetron 8, and a microwave conduction device; the projection of the driving device 2 on either the magnetron 8 or the high-voltage transformer 7 in the horizontal or vertical direction has at least partial overlap. The left side of the microwave oven main body 5 is a heating cavity 51, and the right side of the microwave oven main body 5 is an installation cavity 52. The high-voltage capacitor 6, the high-voltage transformer 7, the magnetron 8, and the microwave conduction device are respectively arranged in the installation cavity 52. The magnetron 8 is installed on the microwave conduction device. One end of the high-voltage transformer 7 is electrically connected to the high-voltage capacitor 6, and the other end of the high-voltage transformer 7 is electrically connected to the magnetron 8. The microwave conduction device is used to conduct the microwave generated by the magnetron 8 into the heating cavity 51. In this embodiment, the high-voltage capacitor 6, the high-voltage transformer 7, and the microwave conduction device are respectively installed in the installation cavity 52 on the right side of the microwave oven main body 5. The magnetron 8 is installed on the microwave conduction device. One end of the high-voltage transformer 7 is electrically connected to the high-voltage capacitor 6, and the other end of the high-voltage transformer 7 is electrically connected to the magnetron 8. During operation, the high-voltage capacitor 6 and the high-voltage transformer 7 start to work and generate high voltage to make the magnetron 8 work to generate microwaves. The microwaves are conducted into the heating cavity 51 of the microwave oven main body 5 through the microwave conduction device, thereby heating the food. Compared with the traditional structure where microwaves are emitted from the bottom or top of the heating cavity 51, in this embodiment, the microwaves are directly conducted from the installation cavity 52 to the left heating cavity 51 without being guided to the top or bottom of the heating cavity 51 for output. This can not only reduce the distance of microwave conduction but also change the output end of the microwave conduction device from the bottom or top of the heating cavity 51 to a side-mounted structure, thereby increasing the placement space of the heating cavity 51 and having a wider range of usage scenarios. The internal height of the heating cavity 51 is M, and the overall height of the microwave oven is N. The range of M:N is 0.6 - 0.8.

[0041] As Figure 6 shown, it further includes an incoming wave protection plate 9. The incoming wave protection plate 9 is installed on the microwave oven main body 5. The incoming wave protection plate 9 is arranged between the heating cavity 51 and the placement cavity 52. The material of the incoming wave protection plate 9 is mica sheet. In this embodiment, the incoming wave protection plate 9 is specifically located between the heating cavity 51 and the incoming wave protection plate 9. The incoming wave protection plate 9 plays a blocking role, thereby preventing the food in the heating cavity 51 from entering the placement cavity 52, thus ensuring the normal operation of the microwave oven.

[0042] As Figure 2 and Figure 6-7As shown, the main body 5 of the microwave oven is provided with a clamping groove 53, and the wave inlet protection plate 9 is provided with a clamping piece 91, and the clamping piece 91 is clamped in the clamping groove 53. In this embodiment, the number of the clamping grooves 53 and the clamping pieces 91 is four respectively. Two clamping pieces 91 are provided on each side of the wave inlet protection plate 9. When installing the wave inlet protection plate 9, specifically, the four clamping pieces 91 are clamped in the clamping grooves 53, which is convenient and fast for disassembly and assembly and is convenient for replacement.

[0043] In this embodiment, after the output end of the microwave conduction device is placed on the side, there is no need to install a ceramic flat plate and a glass plate at the bottom of the heating cavity 51, and it is directly changed to a stainless steel flat plate, which can improve its durability and reduce the manufacturing cost at the same time.

[0044] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A microwave conduction device, characterized in that: It includes a waveguide box, a driving device, a connecting piece and a stirring piece; One end of the waveguide box is used to install the magnetron, the waveguide box is provided with a guide channel, one end of the guide channel is used to communicate with the magnetron, the connecting piece is rotatably installed on the other end of the waveguide box, the stirring blade is installed on the connecting piece, the stirring blade is connected to the other end of the guide channel, and the driving device is used to drive the connecting piece to rotate; The stirring piece is provided with a through opening and a bending plate, wherein the bending plate is located at one side of the through opening and is perpendicular to the through opening.

2. A microwave conduction device according to claim 1, characterized in that: The stirring blade is provided with a snap-in opening, and a plurality of the snap-in openings are evenly spaced along the circumferential direction of the stirring blade. The connecting piece is provided with a snap-in buckle, and a plurality of the snap-in buckles are evenly spaced along the circumferential direction of the connecting piece. The snap-in buckle is snapped into the snap-in opening.

3. A microwave conduction device according to claim 2, characterized in that: The stirring piece is provided with a first clamping hole, and the connecting piece is provided with a first clamping column, and the first clamping column is clamped in the first clamping hole.

4. A microwave transmission device according to claim 3, characterized in that: The two through openings are arranged perpendicular to each other, and the stirring plate is provided with a second clamping hole, and the second clamping hole is located outside the first clamping hole; The connecting piece is provided with a second clamping column, the second clamping column is clamped in the second clamping hole, and the second clamping column is located between the two through openings.

5. A microwave transmission device according to claim 1, characterized in that: The connecting piece is provided with reinforcing ribs, and a plurality of the reinforcing ribs are evenly spaced along the circumferential direction of the connecting piece.

6. A microwave transmission device according to claim 1, characterized in that: A waveguide inlet is provided at one end of the waveguide box, and the waveguide inlet is used to install a magnetron; A waveguide outlet is provided at the other end of the waveguide box, the waveguide outlet and the waveguide inlet are connected through the guide channel, and the stirring plate is located outside the waveguide outlet.

7. A microwave oven using a microwave transmission device according to any one of claims 1 to 6, characterized in that: The microwave oven comprises a main body, a high-voltage capacitor, a high-voltage transformer, a magnetron and a microwave conduction device, wherein the projection of the driving device and any one of the magnetron and the high-voltage transformer in the horizontal or vertical direction at least partially overlaps.

8. A microwave oven according to claim 7, characterized in that: The left side of the microwave oven body is a heating cavity, and the right side of the microwave oven body is an installation cavity; It also includes a wave-incoming protection plate, which is installed on the microwave oven body, and is arranged between the heating cavity and the placement cavity, and is made of mica sheet.

9. A microwave oven according to claim 8, characterized in that: The microwave oven body is provided with a card-mounting slot, the wave-entry protection plate is provided with a card-mounting piece, the card-mounting piece is card-mounted in the card-mounting slot, the internal height of the heating cavity is M, the overall height of the microwave oven is N, and the range of M:N is 0.6-0.

8.

10. A microwave oven according to claim 8, characterized in that: The bottom of the heating cavity is made of stainless steel. The high-voltage capacitor, the high-voltage transformer, the magnetron and the microwave conduction device are respectively arranged in the installation cavity. The magnetron is installed in the microwave conduction device. One end of the high-voltage transformer is electrically connected to the high-voltage capacitor, and the other end of the high-voltage transformer is electrically connected to the magnetron. The microwave conduction device is used to conduct the microwaves generated by the magnetron into the heating cavity.

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