CN112563707A - Waveguide and microwave cooking appliance - Google Patents
Waveguide and microwave cooking appliance Download PDFInfo
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- CN112563707A CN112563707A CN202011375847.XA CN202011375847A CN112563707A CN 112563707 A CN112563707 A CN 112563707A CN 202011375847 A CN202011375847 A CN 202011375847A CN 112563707 A CN112563707 A CN 112563707A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/12—Hollow waveguides
- H01P3/123—Hollow waveguides with a complex or stepped cross-section, e.g. ridged or grooved waveguides
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
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- Electromagnetism (AREA)
- Electric Ovens (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
The invention discloses a waveguide and a microwave cooking appliance, wherein the waveguide is provided with a waveguide channel, a microwave inlet and a microwave outlet, the waveguide channel comprises a first channel part and a second channel part which are communicated with each other, the first channel part and the second channel part are arranged in an L shape, the first channel part is communicated with the microwave inlet, the second channel part is communicated with the microwave outlet, a step surface with at least one step structure corresponding to the microwave inlet is arranged in the first channel part, and one side of the step surface, which is close to the communication position of the first channel part and the second channel part, is arranged in the direction away from the microwave inlet. When the waveguide is used for the microwave cooking appliance, the microwave generating device is communicated with the microwave inlet of the waveguide, the microwave outlet of the waveguide is communicated with the cooking cavity, and microwaves are transmitted to the second channel part through the first channel part, so that the channel opening of the first channel part is gradually increased in the process of transition to the second channel part through the stepped surface, the microwave transmission smoothness is improved, and the failure rate of the microwave cooking appliance is reduced.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a waveguide. The invention also relates to a microwave cooking appliance.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
Microwave cooking appliances (such as microwave ovens) generally include a cooking chamber box, a waveguide and a microwave generating device, the microwave generating device and the waveguide are arranged on the box, the microwave generating device is communicated with the cooking chamber through the waveguide, the microwave generated by the microwave generating device is sent into the cooking chamber through the waveguide, and the microwave is utilized to heat and cook food in the cooking chamber.
In the prior art, the waveguide is of an L-shaped structure, and the position of the L-shaped transition is of a vertical structure, so that the microwave has poor trafficability in the waveguide, the microwave device is easy to be damaged, the use cost of a user is increased, and the use experience of the user is reduced.
Disclosure of Invention
The object of the present invention is to at least solve the problem of how to improve the microwave transit in the waveguide. The purpose is realized by the following technical scheme:
the invention provides a waveguide which is provided with a waveguide channel, a microwave inlet and a microwave outlet, wherein the waveguide channel comprises a first channel part and a second channel part which are communicated with each other, the first channel part and the second channel part are arranged in an L shape, the first channel part is communicated with the microwave inlet, the second channel part is communicated with the microwave outlet, a step surface which corresponds to the microwave inlet and is provided with at least one step structure is arranged in the first channel part, and one side of the step surface, which is close to the communication position of the first channel part and the second channel part, is far away from the microwave inlet.
According to the waveguide of the present invention, the waveguide channel in the waveguide is formed by communicating a first channel portion and a second channel portion with each other, wherein the first channel portion communicates with the microwave inlet, the second channel portion communicates with the microwave outlet, the first channel portion and the second channel portion are arranged in an L shape, the stepped surface is located inside the first channel portion and is arranged corresponding to the microwave inlet, and since the stepped surface has at least one step structure, and one side near the position where the first channel portion communicates with the second channel portion is arranged away from the direction of the microwave inlet.
When this waveguide is used for microwave cooking utensil, microwave generating device communicates with the microwave entry of waveguide, the microwave export of waveguide communicates with microwave cooking device's culinary art chamber, the produced microwave of microwave generating device enters into first passageway portion through the microwave entry, the microwave is through the in-process of first passageway portion to the transmission of second passageway portion, owing to set up the ladder face, thereby make first passageway portion in the crescent to its passway of second passageway portion transition, the smoothness nature of microwave transmission has been improved, the fault rate of microwave cooking utensil has been reduced, and then user's use cost has been reduced, make user's use experience obtain the promotion.
In addition, the waveguide according to the present invention may have the following additional technical features:
in some embodiments of the invention, the waveguide comprises:
the step surface is positioned on the body;
the cover plate is matched with the body to surround and form the wave guide channel, the microwave inlet is formed in the cover plate, and the cover plate and the body limit the microwave outlet.
In some embodiments of the invention, the body comprises:
the step surface is positioned on the bent plate;
a first end plate vertically connected to one bent end of the bent plate;
the second end plate, the second end plate with first end plate parallel interval sets up and connects perpendicularly another bending end of bent plate, the apron respectively with the bent plate first end plate with the cooperation of second end plate, in order to form the guided wave passageway.
In some embodiments of the present invention, the bending plate includes a first plate body, a second plate body, a third plate body, a fourth plate body, a fifth plate body and a sixth plate body, which are sequentially connected, the first plate body is vertically connected to the cover plate, the first plate body is parallel to the third plate body and is located on two opposite sides of the second plate body, the third plate body is parallel to the fifth plate body and is located on two opposite sides of the fourth plate body, the fourth plate body and the sixth plate body are located on two opposite sides of the fifth plate body, and the first end plate, the second end plate, the cover plate and the sixth plate body define the microwave outlet.
In some embodiments of the present invention, the first plate body, the second plate body, the third plate body, the fourth plate body, the first end plate, the second end plate, and the first plate portion of the cover plate define the first channel portion, and the fifth plate body, the sixth plate body, the first end plate, the second end plate, and the second plate portion of the cover plate define the second channel portion.
In some embodiments of the present invention, the microwave inlet is opened on the first plate portion, the first plate body and the second plate body form a first step structure, and the third plate body and the fourth plate body form a second step structure.
In some embodiments of the present invention, the second plate is vertically connected to the first plate and the third plate, respectively.
In some embodiments of the present invention, the fourth plate is vertically connected to the third plate and the fifth plate, respectively.
In some embodiments of the present invention, the first plate, the second plate, the third plate, the fourth plate, the fifth plate and the sixth plate are an integrated structure.
A second aspect of the present invention proposes a microwave cooking appliance, comprising:
the cooking device comprises a box body, a cooking cavity and a control device, wherein the cooking cavity is arranged in the box body and used for cooking food;
the microwave generating device is arranged on the box body;
according to the waveguide as described above, the waveguide is provided on the cabinet, and the microwave generating device communicates with the cooking chamber through the waveguide.
According to the microwave cooking appliance of the present invention, the wave guide channel in the waveguide is formed by the first channel part and the second channel part communicating with each other, wherein the first channel part communicates with the microwave inlet, the second channel part communicates with the microwave outlet, the first channel part and the second channel part are arranged in an L shape, the stepped surface is located inside the first channel part and is arranged corresponding to the microwave inlet, since the stepped surface has at least one step structure, and one side close to the position where the first channel part communicates with the second channel part is arranged away from the direction of the microwave inlet.
Microwave generating device communicates with the microwave inlet of waveguide, the microwave export of waveguide communicates with microwave cooking device's culinary art chamber, the produced microwave of microwave generating device enters into first passageway portion through the microwave inlet, the microwave is through the in-process of first passageway portion to the transmission of second passageway portion, owing to set up the ladder face, thereby make first passageway portion in the crescent to its passway of in-process of second passageway portion transition, the smoothness nature of microwave transmission has been improved, the fault rate of microwave cooking utensil has been reduced, and then user's use cost has been reduced, make user's use experience obtain the promotion.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
fig. 1 schematically shows a structural schematic view (showing a partial structure) of a microwave cooking appliance according to an embodiment of the present invention;
FIG. 2 is a schematic view of the waveguide shown in FIG. 1 in a first attitude;
FIG. 3 is a schematic view of the waveguide shown in FIG. 1 in a second attitude;
fig. 4 is a cross-sectional view of the waveguide shown in fig. 1.
The reference numbers are as follows:
100 is a microwave cooking appliance;
10 is a box body, 11 is a cooking cavity;
20 is a microwave generating device;
30 is a waveguide;
31 is a body, 311 is a first end plate, 312 is a second end plate, 313 is a bent plate, 3131 is a first plate, 3132 is a second plate, 3133 is a third plate, 3134 is a fourth plate, 3135 is a fifth plate, 3136 is a sixth plate, 314 is a microwave outlet, and 315 is a through hole;
32 is a cover plate, 321 is a first plate part, 3211 is a microwave inlet, and 322 is a second plate part;
40 is a microwave stirring device.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 4, according to an embodiment of the present invention, a waveguide 30 is provided, the waveguide 30 is provided with a waveguide channel, a microwave inlet 3211 and a microwave outlet 314, the waveguide channel includes a first channel portion and a second channel portion that are communicated with each other, the first channel portion and the second channel portion are arranged in an L shape, the first channel portion is communicated with the microwave inlet 3211, the second channel portion is communicated with the microwave outlet 314, a step surface having at least one step structure and corresponding to the microwave inlet 3211 is provided inside the first channel portion, and one side of the step surface close to a communication position of the first channel portion and the second channel portion is arranged in a direction away from the microwave inlet 3211.
Specifically, the guided wave channel located in the waveguide 30 is formed by communicating a first channel portion and a second channel portion with each other, wherein the first channel portion communicates with the microwave inlet 3211, the second channel portion communicates with the microwave outlet 314, the first channel portion and the second channel portion are in an L-shaped arrangement, the stepped surface is located inside the first channel portion and corresponds to the microwave inlet 3211, because the stepped surface has at least one step structure, and the direction of the microwave inlet 3211 is kept away from to one side of the position where the first channel portion and the second channel portion communicate is close to.
When the waveguide 30 is used for the microwave cooking appliance 100, the microwave generating device 20 is communicated with the microwave inlet 3211 of the waveguide 30, the microwave outlet 314 of the waveguide 30 is communicated with the cooking cavity 11 of the microwave cooking appliance, microwaves generated by the microwave generating device 20 enter the first channel part through the microwave inlet 3211, and the microwaves are transmitted to the second channel part through the first channel part, due to the arrangement of the stepped surface, the channel opening of the first channel part is gradually increased in the process of transition to the second channel part, the smoothness of microwave transmission is improved, the failure rate of the microwave cooking appliance 100 is reduced, the use cost of a user is reduced, and the use experience of the user is improved.
It should be understood that, first channel portion and second channel portion connect each other and form the guided wave passageway, and this guided wave passageway is L type structure, and the turning position of being this L type structure at the hookup location of first channel portion and second channel portion, the step face is located first channel portion and is located one side of the turning position of L type structure, and in microwave enters into first channel portion through microwave entry 3211, the step face had the trend of guiding the microwave downwards, has reduced stopping to the microwave for microwave transmission's smoothness has obtained the improvement.
It should be pointed out that the ladder face sets up in the slope of first passageway, the one side of ladder face is close to microwave inlet 3211 and sets up promptly, the opposite side of ladder face (the position that is close to first passageway portion and second passageway portion intercommunication) is kept away from microwave inlet 3211 and is set up, thereby make first passageway portion at the in-process to the transition of second passageway portion, the size of the passway mouth of guided wave channel crescent, make the microwave along first passageway portion to the smooth and easy nature when second passageway portion transmits promoted effectively, the energy of microwave reflection back microwave generating device 20 has been reduced, the harm of microwave to microwave cooking utensil 100 has been reduced, the fault rate of microwave cooking utensil 100 has been reduced.
As shown in fig. 2 to 4, the microwave inlet 3211 is provided near one end of the waveguide, the microwave outlet 314 is provided near the other end of the waveguide, and the opening direction of the microwave inlet 3211 is perpendicular to the opening direction of the microwave outlet 314. Specifically, the waveguide channel is formed inside the waveguide 30, and the waveguide channel is respectively communicated with the outside through the microwave inlet 3211 and the microwave outlet 314, in the present invention, the microwave inlet 3211 and the microwave outlet 314 are respectively disposed near two ends of the waveguide channel, and the opening direction of the microwave inlet 3211 is perpendicular to the opening direction of the microwave outlet 314. When waveguide 30 is used for microwave cooking utensil 100, microwave inlet 3211 and microwave generating device 20 intercommunication of waveguide 30, microwave outlet 314 and the culinary art chamber 11 intercommunication of waveguide 30, through above-mentioned waveguide 30 structure, be convenient for on the one hand to the whole overall arrangement installation of each part of microwave cooking device, on the other hand can improve the homogeneity that gets into the microwave in the culinary art chamber 11 to guarantee the effect to the culinary art of food in the culinary art chamber 11, make user's use experience obtain promoting effectively.
Further, the waveguide 30 includes a body 31 and a cover plate 32, the stepped surface is located on the body 31, the cover plate 32 is matched with the body 31 to form a wave guide channel in a surrounding manner, the microwave inlet 3211 is opened on the cover plate 32, and the cover plate 32 and the body 31 define a microwave outlet 314. Specifically, a groove with a groove-shaped approximate L-shaped structure is formed in the body 31, the microwave inlet 3211 is disposed on the cover plate 32, the cover plate 32 is matched with the body 31 to seal the notch of the groove from one end to the other end, but the cover plate 32 does not seal the notch of the groove at the other end, the notch of the groove not sealed by the cover plate 32 forms the microwave outlet 314, and the microwave inlet 3211 on the cover plate 32 is disposed corresponding to the step surface on the body 31. The waveguide 30 has a simple structure, is convenient to process and manufacture, and can effectively reduce the manufacturing cost of products.
In other embodiments, the cover plate 32 is not provided with the microwave inlet 3211, the cover plate 32 seals the middle of the notch of the groove, both ends of the groove are not sealed, and the notches which are not sealed at both ends of the groove form the microwave inlet 3211 and the microwave outlet 314, thereby improving the convenience of processing.
Further, as shown in fig. 2 to 4, the body 31 includes a bending plate 313, a first end plate 311 and a second end plate 312, the stepped surface is located on the bending plate 313, the first end plate 311 is vertically connected to one bending end of the bending plate 313, the second end plate 312 is arranged in parallel with the first end plate 311 at a distance and is vertically connected to the other bending end of the bending plate 313, and the cover plate 32 is respectively matched with the bending plate 313, the first end plate 311 and the second end plate 312 to form a wave guide channel. Specifically, the bending plate 313 is formed by bending, the bending plate 313 includes two oppositely-arranged bending ends (ends with bending lines), the first end plate 311 and the second end plate 312 are respectively arranged on the same side of the bending plate 313, the first end plate 311 is connected with one bending end of the bending plate 313, the second end plate 312 is connected with the other bending end of the bending plate 313, a groove approximately in an L shape is defined by the bending plate 313, the first end plate 311 and the second end plate 312 together, and the cover plate 32 is respectively matched with the bending plate 313, the first end plate 311 and the second end plate 312, so that a wave guide channel is formed. The waveguide 30 has a simple overall structure, and is convenient to process and manufacture, thereby effectively reducing the manufacturing cost.
It should be understood that the first end plate 311 and the second end plate 312 are respectively vertically connected to two bending ends of the bending plate 313, that is, the first end plate 311 and the second end plate 312 are arranged in parallel at intervals, the microwave inlet 3211 is arranged on the cover plate 32, the microwave inlet 3211 is arranged corresponding to the bending plate 313, and the inclined end surface is arranged on the bending plate 313, so that the inclined end surface can guide the microwaves after the microwaves enter the waveguide 30 through the microwave inlet 3211, the smoothness of microwave transmission is improved, and the adverse effect of the microwaves on the microwave generating device 20 is reduced.
It should be noted that the bending plate 313 is a bent structure, the first end plate 311 and the second end plate 312 are in a same shape, and the first end plate 311 and the second end plate 312 are in a same shape as the bent shape of the bending plate 313, so as to ensure that the three surround and define a groove with an approximately L-shaped structure, thereby ensuring the shape of the waveguide 30.
Further, as shown in fig. 2 to 4, the bending plate 313 includes a first plate 3131, a second plate 3132, a third plate 3133, a fourth plate 3134, a fifth plate 3135 and a sixth plate 3136 connected in sequence, the first plate 3131 is perpendicularly connected to the cover plate 32, the first plate 3131 is parallel to the third plate 3133 and is located on opposite sides of the second plate 3132, the third plate 3133 is parallel to the fifth plate 3135 and is located on opposite sides of the fourth plate 3134, the fourth plate 3134 and the sixth plate 3136 are located on opposite sides of the fifth plate 3135, and the first end plate 311, the second end plate 312, the cover plate 32 and the sixth plate 3136 define the microwave outlet 314. Specifically, a first plate 3131 and a third plate 3133 are spaced apart from each other, a second plate 3132 is connected between the first plate 3131 and the third plate 3133, and a second plate 3132 is disposed at an angle to the first plate 3131 and the third plate 3133, a fifth plate 3135 is parallel to the first plate 3131 and is disposed at both sides of the third plate 3133, a fourth plate 3134 is connected between the third plate 3133 and the fifth plate 3135 and is disposed at an angle to the third plate 3133 and the fifth plate 3135, a sixth plate 3136 and a fourth plate 3134 are disposed at both sides of the fifth plate 3135, and a sixth plate 3136 is disposed at an angle to the fifth plate 3135, wherein a curved plate 313 is formed by disposing the first plate 3131, the second plate 3132, the third plate 3133, the fourth plate 3134, the fifth plate 3135, and the sixth plate 3136 on one side of the cover 3211, and the first plate 3131 having a microwave inlet 3211, and the cover 3131 having a microwave inlet, The first end plate 311 and the second end plate 312 are connected, and the side of the cover plate 32 not having the microwave inlet 3211 surrounds the sixth plate body 3136, the first end plate 311 and the second end plate 312 to define a microwave outlet 314.
Through the structure that sets up bent plate 313 to make the shape of waveguide 30 satisfy the demand of using, further improved the smoothness nature of microwave transmission in waveguide 30, avoid appearing the condition emergence that microwave damaged microwave cooking utensil 100, reduced the maintenance cost of user to microwave cooking utensil 100, make user's use experience obtain further promotion.
It should be noted that the shape of the cover plate 32 is matched with the shape of the opening of the groove on the body 31, and the cover plate 32 is fixedly connected with the body 31 by bonding, riveting or welding, so as to ensure the strength of the connection position and further ensure the stable transmission of the waveguide 30 to the microwave.
Further, as shown in fig. 2 to 4, the first plate body 3131, the second plate body 3132, the third plate body 3133, the fourth plate body 3134, the first end plate 311, the second end plate 312, and the first plate portion 321 of the cover plate 32 define a first passage portion, and the fifth plate body 3135, the sixth plate body 3136, the first end plate 311, the second end plate 312, and the second plate portion 322 of the cover plate 32 define a second passage portion. Specifically, the cover plate 32 is an L-shaped structure and includes a first plate portion 321 and a second plate portion 322, wherein the microwave inlet 3211 is opened on the first plate portion 321, the first plate body 3131, the second plate body 3132, the third plate body 3133, the fourth plate body 3134, the first end plate 311311, the second end plate 312312 and the first plate portion 321 define a first channel portion, the fifth plate body 3135, the sixth plate body 3136, the first end plate 311, the second end plate 312 and the second plate portion 322 define a second channel portion, and the first channel portion and the second channel portion are communicated with each other to form a wave guide channel. The waveguide 30 structure formed by splicing has low processing cost, thereby effectively reducing the manufacturing cost of products.
It should be noted that, in the present invention, the channel opening of the waveguide channel is rectangular, and the rectangular structure facilitates the transmission of microwave, thereby further improving the smoothness of microwave transmission.
Further, as shown in fig. 2 to 4, the microwave inlet 3211 is opened on the first plate portion 321, the first plate 3131 and the second plate 3132 form a first step structure, and the third plate 3133 and the fourth plate 3134 form a second step structure. Specifically, the first plate 3131 is vertically connected to the first plate 321 of the cover plate 32, the first plate 3131, the third plate 3133 and the fifth plate 3135 are disposed in parallel and spaced apart, and the first plate 3131 and the fifth plate 3135 are disposed on two sides of the third plate 3133, the second plate 3132 is connected between the first plate 3131 and the third plate 3133, the fourth plate 3134 is connected between the third plate 3133 and the fifth plate 3135, a first step structure is formed at a connection position of the first plate 3131 and the second plate 3132, a second step structure is formed at a connection position of the third plate 3133 and the fourth plate 3134, and both step structures are disposed corresponding to the microwave inlet 3211. When the waveguide 30 is used for the microwave cooking appliance 100, microwaves enter the first channel through the microwave inlet 3211, and in the microwave transmission process, the microwaves are guided by the two step structures, so that the microwaves are rapidly transmitted toward the second channel, resistance in the microwave transmission process is reduced, microwave transmission smoothness is improved, adverse effects (sparking phenomenon and the like) caused by the fact that the microwaves are reflected back to the microwave generating device 20 (magnetron and the like) are avoided, the fault rate of the microwave cooking appliance 100 is reduced, and the use cost of a user is reduced.
It should be noted that the second plate portion 322, the first end plate 311, the second end plate 312 and the sixth plate body 3136 of the cover plate 32 form a microwave outlet 314, the microwave outlet 314 is disposed corresponding to the fifth plate body 3135, and the sixth plate body 3136 is disposed at an angle to the fifth plate body 3135, so that the connection position of the fifth plate body 3135 and the sixth plate body 3136 forms a third step structure, the third step structure is located in the second passage portion, and when the microwave is transmitted to the third step position, the third step structure guides the microwave, so that the microwave is transmitted toward the microwave outlet 314, thereby further improving the transmission efficiency of the microwave and reducing the loss of microwave energy.
Further, as shown in fig. 2 to 4, the second plate body 3132 is vertically connected to the first plate body 3131 and the third plate body 3133, respectively. Specifically, the first plate 3131 is perpendicularly connected to the first plate 321 of the cover plate 32, the second plate 3132 and the third plate 3133 are disposed corresponding to the first plate 321, the microwave inlet 3211 is disposed on the first plate 321, the first plate 3131 and the third plate 3133 are disposed in parallel and spaced apart, and the second plate 3132 is perpendicularly connected to the first plate 3131 and the third plate 3133. By arranging the second plate body 3132 to be vertically connected to the first plate body 3131 and the second plate body 3132, respectively, the difficulty of manufacturing is effectively reduced while the smoothness of microwave transmission is ensured to be improved.
It should be noted that, as shown in fig. 4, in the present invention, the width of the first plate 3131 (the length of the first plate 3131 between the first portion of the cover plate 32 and the second plate 3132) is greater than or equal to 39mm, the width of the third plate 3133 (the length of the third plate 3133 between the second plate 3132 and the fourth plate 3134) is greater than or equal to 25mm, and by setting the dimensions of the first plate 3131 and the third plate 3133, the smoothness of microwave transmission in the waveguide 30 is further ensured, so as to reduce the energy consumption of the microwaves, and at the same time, to reduce the adverse effect of the microwaves on the microwave cooking appliance 100, and reduce the failure rate of the microwave cooking appliance 100.
In other embodiments, the second plate 3132 is disposed in a non-perpendicular manner to the first plate 3131 and the third plate 3133, and the arrangement of the second plate 3132 with respect to the first plate 3131 and the third plate 3133 is adjusted, so as to meet the transmission requirements of microwaves with different wavelengths.
Further, as shown in fig. 2 to 4, the fourth plate body 3134 is vertically connected to the third plate body 3133 and the fifth plate body 3135, respectively. Specifically, the third plate body 3133 and the fifth plate body 3135 are respectively disposed at both sides of the fourth plate body 3134, and the difficulty of manufacturing is effectively reduced while the smoothness of microwave transmission is ensured to be improved by disposing the fourth plate body 3134 to be vertically connected to the third plate body 3133 and the fifth plate body 3135, respectively.
It should be noted that, as shown in fig. 4, in the present invention, the width of the fourth plate body 3134 (the length of the fourth plate body 3134 between the third plate body 3133 and the fifth plate body 3135) is greater than or equal to 13mm, and by setting the size of the fourth plate body 3134, the smoothness of microwave transmission in the waveguide 30 is further ensured, so as to reduce the energy consumption of the microwave, and at the same time, the adverse effect of the microwave on the microwave cooking appliance 100 is reduced, and the failure rate of the microwave cooking appliance 100 is reduced.
As shown in fig. 4, the sixth plate 3136 and the fourth plate 3134 are respectively disposed on both sides of the fifth plate 3135, and the sixth plate 3136 and the fifth plate 3135 are vertically disposed, in this embodiment, the width of the sixth plate 3136 (the length of the sixth plate 3136 in the direction parallel to the fourth plate 3134) is greater than or equal to 18mm, and the size of the sixth plate 3136 is set, so that the smoothness of microwave transmission in the waveguide 30 is further ensured, the adverse effect of the microwave on the microwave cooking appliance 100 is reduced, and the failure rate of the microwave cooking appliance 100 is reduced.
In other embodiments, the fourth plate 3134 and the third and fifth plates 3133, 3135 are disposed in a non-perpendicular manner, and the arrangement of the fourth plate 3134 with respect to the third and fifth plates 3133, 3135 is adjusted, so as to meet the transmission requirements of microwaves with different wavelengths.
In addition, the sixth plate 3136 and the fifth plate 3135 are disposed in a non-perpendicular manner, and the arrangement of the sixth plate 3136 with respect to the fifth plate 3135 is adjusted, so as to meet the transmission requirements of microwaves with different wavelengths.
Further, the first plate 3131, the second plate 3132, the third plate 3133, the fourth plate 3134, the fifth plate 3135, and the sixth plate 3136 are an integrated structure. Specifically, in the present invention, the bent plate is a metal plate, and the first plate 3131, the second plate 3132, the third plate 3133, the fourth plate 3134, the fifth plate 3135, and the sixth plate 3136 are formed by stamping and bending, so that the integrated structure is convenient for manufacturing, and the manufacturing cost of the product can be effectively reduced.
It should be noted that, in the present invention, the bent plate 313, the first end plate 311, and the second end plate 312 are formed by punching the bent position on the same sheet material and then bending the punched sheet material, that is, the body 31 is integrally manufactured, thereby further reducing the manufacturing cost of the product. In addition, after the adjacent integral plate materials are punched and bent, the overlapped positions need to be fixed by bonding, riveting or welding, so that the strength of the body 31 is ensured.
In addition, the shape of the cover plate 32 is matched with the opening shape of the groove on the body 31, and the cover plate 32 is fixedly connected with the body 31 in a bonding, riveting or welding mode, so that the strength of the connecting position is ensured, and the waveguide 30 is further ensured to stably transmit microwaves.
In other embodiments, the bending plate 313, the first end plate 311 and the second end plate 312 are processed separately, and then the body 31 of the waveguide 30 is formed by assembling and welding after the processing is completed separately, so that the processing difficulty is reduced by split processing, and the processing efficiency is improved.
In other embodiments, the bending plate 313 is a metal piece and is integrally formed by die casting, so that the connection strength between the plate bodies is ensured, and the overall strength of the waveguide is enhanced.
As shown in fig. 1 to 4, a second aspect of the present invention provides a microwave cooking appliance 100, the microwave cooking appliance 100 including a cabinet 10, a microwave generating device 20, and a waveguide 30 as above, the cabinet 10 having a cooking cavity 11 therein, the cooking cavity 11 being used for cooking food, the microwave generating device 20 being disposed on the cabinet 10, the waveguide 30 being disposed on the cabinet 10, and the microwave generating device 20 being in communication with the cooking cavity 11 through the waveguide 30.
According to the microwave cooking appliance 100 of the present invention, the wave guide channel in the wave guide 30 is formed by the first channel portion and the second channel portion communicating with each other, wherein the first channel portion communicates with the microwave inlet 3211, the second channel portion communicates with the microwave outlet 314, the first channel portion and the second channel portion are disposed in an L shape, the stepped surface is disposed inside the first channel portion and corresponds to the microwave inlet 3211, and since the stepped surface has at least one step structure, and a side close to a position where the first channel portion communicates with the second channel portion is disposed away from the microwave inlet 3211.
It should be noted that, the microwave cooking utensil 100 further includes the microwave stirring device 40, this microwave stirring device 40 includes motor and antenna, the motor is installed in the outside of waveguide 30 and is corresponded the setting with microwave outlet 314, the antenna enters into waveguide 30 and is located microwave outlet 314 position through the through-hole 315 on the waveguide 30, the antenna is connected with motor drive, in the microwave along the guided wave channel transmission process of waveguide 30, electrical apparatus drive antenna rotates, thereby stir the position that gets into in the cooking chamber 11, make the microwave that gets into in the cooking chamber 11 more even. In addition, the inclined end face is arranged in the waveguide 30, so that the smoothness of microwave transmission is improved, adverse effects (antenna melting and the like) on the antenna caused by microwaves are avoided, and the failure rate of the product is reduced.
In the present invention, the microwave cooking appliance is a microwave oven, etc., and the structure of other parts of the microwave cooking appliance refers to the prior art, which is not described herein again.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a waveguide, its characterized in that, the waveguide is equipped with guided wave passageway, microwave entry and microwave export, the guided wave passageway is including first passageway portion and the second passageway portion that communicates each other, first passageway portion with second passageway portion is the setting of L type, first passageway portion with microwave entry intercommunication, second passageway portion with microwave export intercommunication, the inside of first passageway portion be equipped with the microwave entry corresponds the ladder surface that has at least one stair structure, the ladder surface is close to first passageway portion with one side of second passageway portion intercommunication position is kept away from the direction setting of microwave entry.
2. The waveguide of claim 1, comprising:
the step surface is positioned on the body;
the cover plate is matched with the body to surround and form the wave guide channel, the microwave inlet is formed in the cover plate, and the cover plate and the body limit the microwave outlet.
3. The waveguide of claim 2, wherein the body comprises:
the step surface is positioned on the bent plate;
a first end plate vertically connected to one bent end of the bent plate;
the second end plate, the second end plate with first end plate parallel interval sets up and connects perpendicularly another bending end of bent plate, the apron respectively with the bent plate first end plate with the cooperation of second end plate, in order to form the guided wave passageway.
4. The waveguide of claim 3, wherein the flexural plate comprises a first plate body, a second plate body, a third plate body, a fourth plate body, a fifth plate body and a sixth plate body which are connected in sequence, the first plate body is perpendicularly connected with the cover plate, the first plate body is parallel to the third plate body and is located on two opposite sides of the second plate body, the third plate body is parallel to the fifth plate body and is located on two opposite sides of the fourth plate body, the fourth plate body is located on two opposite sides of the fifth plate body, and the first end plate, the second end plate, the cover plate and the sixth plate body define the microwave outlet.
5. The waveguide of claim 4, wherein the first plate body, the second plate body, the third plate body, the fourth plate body, the first end plate, the second end plate, and the first plate portion of the cover plate define the first channel portion, and the fifth plate body, the sixth plate body, the first end plate, the second end plate, and the second plate portion of the cover plate define the second channel portion.
6. A waveguide according to claim 4, wherein said microwave inlet opens onto said first plate portion, said first plate portion and said second plate portion forming a first of said stepped configurations, and said third plate portion and said fourth plate portion forming a second of said stepped configurations.
7. The waveguide of claim 6, wherein the second plate body is perpendicularly connected to the first and third plate bodies, respectively.
8. The waveguide of claim 6, wherein the fourth plate body is perpendicularly connected to the third and fifth plate bodies, respectively.
9. The waveguide of any one of claims 4 to 8, wherein the first plate body, the second plate body, the third plate body, the fourth plate body, the fifth plate body, and the sixth plate body are a unitary structure.
10. A microwave cooking appliance, characterized in that the microwave cooking appliance comprises:
the cooking device comprises a box body, a cooking cavity and a control device, wherein the cooking cavity is arranged in the box body and used for cooking food;
the microwave generating device is arranged on the box body;
the waveguide according to any one of claims 1 to 9, which is provided on the cabinet, and through which the microwave generating device communicates with the cooking chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011375847.XA CN112563707A (en) | 2020-11-30 | 2020-11-30 | Waveguide and microwave cooking appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011375847.XA CN112563707A (en) | 2020-11-30 | 2020-11-30 | Waveguide and microwave cooking appliance |
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| CN112563707A true CN112563707A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011375847.XA Pending CN112563707A (en) | 2020-11-30 | 2020-11-30 | Waveguide and microwave cooking appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113260105A (en) * | 2021-05-27 | 2021-08-13 | 广东美的厨房电器制造有限公司 | Microwave generation system of cooking utensil and cooking utensil |
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| CN103229593A (en) * | 2010-11-29 | 2013-07-31 | 松下电器产业株式会社 | Microwave heater |
| CN104676674A (en) * | 2014-07-29 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Microwave oven, and exciter and waveguide thereof |
| CN106031305A (en) * | 2014-03-25 | 2016-10-12 | 松下知识产权经营株式会社 | Microwave processing apparatus |
| CN109548214A (en) * | 2018-12-20 | 2019-03-29 | 广东美的厨房电器制造有限公司 | Micro-wave oven |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103229593A (en) * | 2010-11-29 | 2013-07-31 | 松下电器产业株式会社 | Microwave heater |
| CN106031305A (en) * | 2014-03-25 | 2016-10-12 | 松下知识产权经营株式会社 | Microwave processing apparatus |
| CN104676674A (en) * | 2014-07-29 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Microwave oven, and exciter and waveguide thereof |
| CN109548214A (en) * | 2018-12-20 | 2019-03-29 | 广东美的厨房电器制造有限公司 | Micro-wave oven |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113260105A (en) * | 2021-05-27 | 2021-08-13 | 广东美的厨房电器制造有限公司 | Microwave generation system of cooking utensil and cooking utensil |
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