阅读说明：本技术 微波烹饪器具的门体组件及具有其的微波烹饪器具 (Door body assembly of microwave cooking utensil and microwave cooking utensil with door body assembly ) 是由 刘奇 胡广川 陈茂顺 于 2021-08-31 设计创作，主要内容包括：本发明涉及烹饪器具技术领域,具体涉及一种微波烹饪器具的门体组件及具有其的微波烹饪器具。本发明旨在解决现有微波烹饪器具微波泄漏严重的技术问题。为此目的,本发明提供了一种微波烹饪器具的门体组件,门体组件包括：门体,门体的周边设置有与微波烹饪器具的前门板配合的凸包结构；多个弹性件,多个弹性件间隔设置于凸包结构,且多个弹性件能够伸出凸包结构外并分隔凸包结构与前门板之间的间隙。本发明的微波烹饪器具的门体组件通过多个弹性件将凸包结构与前门板之间的间隙分隔成多段,以此减少每段间隙的长度,以微波截止波导波长理论为基础,通过多个间隔分布的短间隙来减少门体与前门板发生微波泄漏现象。(The invention relates to the technical field of cooking appliances, in particular to a door body assembly of a microwave cooking appliance and the microwave cooking appliance with the door body assembly. The invention aims to solve the technical problem of serious microwave leakage of the existing microwave cooking utensil. To this end, the present invention provides a door assembly of a microwave cooking appliance, the door assembly comprising: the periphery of the door body is provided with a convex hull structure matched with a front door plate of the microwave cooking appliance; the elastic pieces are arranged on the convex hull structure at intervals, and can extend out of the convex hull structure and separate gaps between the convex hull structure and the front door panel. The door body assembly of the microwave cooking utensil divides the gap between the convex hull structure and the front door plate into a plurality of sections through the plurality of elastic pieces, so that the length of each section of gap is reduced, and the microwave leakage phenomenon between the door body and the front door plate is reduced through a plurality of short gaps distributed at intervals on the basis of the microwave cut-off waveguide wavelength theory.)

1. A door body assembly of a microwave cooking appliance, characterized in that, the door body assembly includes:

the periphery of the door body is provided with a convex hull structure matched with a front door plate of the microwave cooking appliance;

the elastic pieces are arranged on the convex hull structure at intervals, and can extend out of the convex hull structure and separate gaps between the convex hull structure and the front door panel.

2. The door assembly of a microwave cooking appliance according to claim 1, wherein the elastic member includes:

the elastic element is arranged inside the convex hull structure;

and the blocking block is arranged on the elastic element and stretches out and draws back at the convex hull structure under the resultant force of the elastic element and the front door panel.

3. The door assembly of microwave cooking appliance according to claim 2, characterized in that the distance between two adjacent elastic members is less than 72.14 mm.

4. The door assembly of claim 1, further comprising a frame disposed along the circumferential direction, wherein the frame detachably covers the convex hull structure.

5. The door assembly of claim 1, wherein the door is further provided with a plurality of spaced-apart teeth at a periphery thereof, and the teeth circumferentially surround an outer edge of the convex hull structure.

6. The door assembly of claim 5, wherein the edge of the door forms a U-shaped structure with an opening facing away from the front door panel by flanging, and the U-shaped structure forms the door tooth.

7. The door assembly of claim 5, wherein the length of the teeth in a direction away from the convex hull structure is no greater than 6 mm.

8. The door assembly of claim 5, wherein the distance between two adjacent door teeth is less than 72.14 mm.

9. A microwave cooking appliance, characterized in that the microwave cooking appliance comprises:

a front door panel surrounding a periphery of a doorway provided to the microwave cooking appliance;

the door assembly according to any one of claims 1 to 8, wherein the door assembly is disposed on the microwave cooking appliance and cooperates with the door opening and the front door panel.

10. The door assembly of claim 9, wherein the width of the edge of the front door panel is no greater than 28 mm.

Technical Field

The invention relates to the technical field of cooking appliances, in particular to a door body assembly of a microwave cooking appliance and the microwave cooking appliance with the door body assembly.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

The door of a conventional microwave oven is one of the most important microwave oven components. It plays a very important role in the leakage of microwaves. However, in the conventional oven door structure, the gap between the oven door and the front door panel is too large and too long, so that the microwave in the microwave oven is easily leaked at the gap between the oven door and the front door panel.

Disclosure of Invention

The present invention is intended to solve, at least to some extent, the technical problem that microwaves in a microwave oven are easily leaked in a gap between an oven door and a front door panel.

In order to achieve the above object, a first aspect of the present invention provides a door assembly of a microwave cooking appliance, the door assembly comprising: the periphery of the door body is provided with a convex hull structure matched with a front door plate of the microwave cooking appliance; the elastic pieces are arranged on the convex hull structure at intervals, and can extend out of the convex hull structure and separate gaps between the convex hull structure and the front door panel.

The door body assembly of the microwave cooking utensil divides the gap between the convex hull structure and the front door plate into a plurality of sections through the plurality of elastic pieces, so that the length of each section of gap is reduced, and the microwave leakage phenomenon between the door body and the front door plate is reduced through a plurality of short gaps distributed at intervals on the basis of the microwave cut-off waveguide wavelength theory. When the clearance between convex hull structure and the preceding door plant is great, through microwave cutoff waveguide wavelength theory, a plurality of elastic components can be separated the rectangular gap between convex hull structure and the preceding door plant by a plurality of elastic components, and the gap of a plurality of small segments is dispersed into to original rectangular gap, reduces the door body and takes place microwave leakage phenomenon with preceding door plant.

In addition, the door body assembly of the microwave cooking appliance according to the invention can also have the following additional technical characteristics:

according to one embodiment of the present invention, the elastic member includes: the elastic element is arranged inside the convex hull structure; and the stop block is arranged on the elastic element and stretches out and draws back at the convex hull structure under the resultant force of the elastic element and the front door panel.

According to one embodiment of the invention, the spacing between two adjacent elastic members is less than 72.14 mm.

According to one embodiment of the invention, the door body assembly further comprises a frame arranged along the circumferential direction, and the frame is detachably covered on the convex hull structure.

According to an embodiment of the invention, the periphery of the door body is further provided with a plurality of spaced door teeth matched with the front door panel, and the plurality of door teeth circumferentially surround the outer edge of the convex hull structure.

According to one embodiment of the invention, the edge of the door body is flanged to form a U-shaped structure with an opening back to the front door panel, and the U-shaped structure forms door teeth.

According to one embodiment of the invention, the length of the front teeth in the direction away from the convex hull structure is not more than 6 mm.

According to one embodiment of the invention, the spacing between two adjacent incisors is less than 72.14 mm.

A second aspect of the present invention provides a microwave cooking appliance, comprising: a front door panel surrounding a periphery of a doorway provided in the microwave cooking appliance; according to the door body assembly of the first aspect of the invention, the door body assembly is arranged on the microwave cooking appliance and is matched with the door opening and the front door plate.

According to one embodiment of the invention, the width of the edge of the front door panel is not more than 28 mm.

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 reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural view of a door assembly according to one embodiment of the present invention;

FIG. 2 is a sectional view taken along line A-A of the door body assembly shown in FIG. 1;

FIG. 3 is a side view of the door body assembly shown in FIG. 1;

FIG. 4 is a schematic view of a portion B of the door assembly shown in FIG. 3;

FIG. 5 is an isometric view of the door body assembly of FIG. 1;

FIG. 6 is a schematic structural diagram of a bezel according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a microwave cooking appliance according to an embodiment of the present invention;

fig. 8 is a partial structural view of the microwave cooking appliance shown in fig. 7.

Wherein the reference numbers are as follows:

100. a microwave cooking appliance; 101. a doorway; 102. a front door panel;

10. a door body assembly;

11. a door body; 111. an edge structure;

12. a convex hull structure;

13. an elastic member; 131. an elastic element; 132. a blocking block; 1321. a limiting part; 1322. a blocking portion;

14. a front tooth;

15. a frame; 151. a through hole;

20. and (4) a cavity structure.

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 should be noted that the technical solution of the present invention described by the microwave oven is only a preferred embodiment of the present invention, and is not a limitation to the application scope of the technical solution of the present invention, for example, the technical solution of the present invention can also be applied to micro-steaming and baking equipment, and such an adjustment belongs to the protection scope of the technical solution of the present invention.

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 "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

For convenience of description, spatially relative terms, such as "end," "outer," "bottom," "upper," "back-to-back," "side," "axial," 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. This spatially relative relationship is intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism 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 mechanism may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

A door assembly 10 of a microwave cooking appliance 100 and the microwave cooking appliance 100 according to some embodiments of the present invention are described below with reference to fig. 1 to 8.

According to an embodiment of the present invention, as shown in fig. 1 to 6, a first aspect of the present invention provides a door assembly 10, as shown in fig. 7 and 8, and a second aspect of the present invention provides a microwave cooking appliance 100, where the microwave cooking appliance 100 includes a cavity structure 20 and a door assembly 10 openably and closably disposed at a door opening 101 of the cavity structure 20, and the microwave cooking appliance 100 further includes a front door panel 102, and the front door panel 102 circumferentially surrounds a periphery of the door opening 101 disposed at the cavity structure 20 and is located between the door assembly 10 and the cavity structure 20.

The door body assembly 10 according to the first aspect of the present invention includes a door body 11, a convex hull structure 12 is disposed on a side of the door body 11 facing a doorway 101, the convex hull structure 12 is disposed on a periphery of the door body 11 and is matched with a front door panel 102, an inner edge of the convex hull structure 12 is located in a doorway 101 region of a cavity structure 20, an outer edge of the convex hull structure 12 is matched with the front door panel 102, the door body assembly 10 further includes a plurality of elastic members 13, the plurality of elastic members 13 are disposed at intervals on the convex hull structure 12, and the plurality of elastic members 13 can extend out of the convex hull structure 12 and block a gap between the convex hull structure 12 and the front door panel 102.

The door body assembly 10 of the microwave cooking utensil 100 of the invention divides the gap between the convex hull structure 12 and the front door panel 102 into a plurality of sections through a plurality of elastic pieces 13, so as to reduce the length of each section of gap, and reduce the microwave leakage phenomenon between the door body 11 and the front door panel 102 through a plurality of short gaps distributed at intervals on the basis of the microwave cut-off waveguide wavelength theory.

It can be understood that when the gap between the convex hull structure 12 and the front door panel 102 is greater than 2mm, the gap between the convex hull structure 12 and the front door panel 102 is divided into a plurality of sections by the plurality of elastic members 13 according to the microwave cutoff waveguide wavelength theory, and at this time, the cavity of the microwave cooking appliance 100 can still be prevented from generating the wave leakage phenomenon. When the gap between the convex hull structure 12 and the front door panel 102 is large, the long gap between the convex hull structure 12 and the front door panel 102 is separated by the elastic pieces 13, and the original long gap is dispersed into a plurality of small-segment gaps, for example, when the length a of the small gap is 20mm, the cutoff frequency is 7.5GHz, and at this time, the door body assembly 10 cannot penetrate through the microwave cutoff frequency of 2.4GHz, so that the wave leakage phenomenon can be prevented even if the door gap is large.

The frequency spectrum of the microwave oven comprises 2.4GHz-2.6GHz, and in some alternative embodiments of the present application, the distance between two adjacent elastic members 13 is less than 72.14mm, so that the effect that the microwave cut-off frequency between two adjacent elastic members 13 is not greater than 2.6GHz is achieved, and the effect that the plurality of elastic members 13 can block most of the microwaves is achieved. Under the condition that the gap between the front door panel 102 and the door body assembly 10 is greater than 2mm, the wave leakage phenomenon of the cavity structure 20 can still be reduced by using the microwave cut-off waveguide wavelength theory (the detailed formula of the microwave cut-off waveguide wavelength theory is not described herein again).

As can be understood, in the embodiment of the present application, the convex hull structure 12 matched with the front door panel 102 of the microwave cooking appliance 100 is arranged at the periphery of the door body 11, so that the door body 11 structure near the cavity doorway 101 region is extended, a gap between the door body 11 and the front door panel 102 of the microwave cooking appliance 100 can be kept in a stable size, a microwave diffraction phenomenon caused by an excessively large gap is reduced, and a microwave leakage phenomenon caused by the diffraction phenomenon is avoided.

The convex hull structure 12 provides a receiving space for the elastic member 13, and in some alternative embodiments, the convex hull structure 12 may be integrally formed with the door 11, or may be configured to be detachably mounted with the door 11. The door body 11 and the doorway 101 of the cavity structure 20 may be rectangular or circular, and the convex hull structure 12 is configured as a rectangular or circular structure that is circumferentially disposed around the door body 11.

The embodiment of the application does not limit the specific structure and position of the elastic part 13, the elastic part 13 may be disposed on the outer wall of the convex hull structure 12, or may be disposed inside the convex hull structure 12, and the elastic part 13 may be an integrated structure or a combined structure.

In some alternative embodiments, the elastic member 13 is provided as a combined structure including an elastic member 131 and a stopper 132, the elastic member 131 is provided inside the convex hull structure 12, and the stopper 132 is provided on the elastic member 131 and extends and contracts at the convex hull structure 12 under the combined force of the elastic member 131 and the front door panel 102.

The elastic element 131 may be a spring, the stopper 132 may be a spherical structure, a cylindrical structure or a rectangular structure, the stopper 132 specifically includes a stopper 1321 extending out of the convex hull structure 12 and a limiting part 1322 connected to the stopper 1321 and located inside the convex hull structure 12, the size of the limiting part 1322 is greater than that of the stopper 1321, the stopper 132 is substantially in a convex structure, the stopper 132 is mounted to the elastic element 131 through the limiting part 1322, the elastic element 131 pushes the stopper 132 through the limiting part 1322, and the risk of falling off of the stopper 132 is reduced through the cooperation between the limiting part 1322 and the convex hull structure 12.

In some alternative embodiments, the compression stroke of the elastic element 131 and the movement stroke of the blocking block 132 are greater than 2mm, so as to improve the application range of the elastic element 131 and the blocking block 132, and even if the gap between the door body assembly 10 and the front door panel 102 is greater than 2mm, the blocking block 132 can still separate the long gap between the door body assembly 10 and the front door panel 102.

In some optional embodiments, under the condition that convex hull structure 12 and door body 11 set up to the integrated into one piece structure, convex hull structure 12 can be directly on door body 11 through stamping forming means integrated into one piece on the door body 11, thereby the connection structure between conventional convex hull structure 12 and door body 11 has been removed from, the production and the assembly efficiency of product have been promoted by a wide margin, simultaneously, there is not the connection section between integrated into one piece's convex hull structure 12 and the door body 111, can avoid convex hull structure 12 to take place to warp and damage at its position of being connected with door body 11 when receiving external force, thereby play and optimize the product structure, promote the product reliability, reduce the technological effect of product manufacturing cost.

Under the condition that convex hull structure 12 is set as and is detachably mounted with door body 11, the periphery of door body 11 is provided with the holding tank that cooperates with front door plant 102, and a part of elastic component 13 sets up in the holding tank, and door body subassembly 10 still includes and covers the frame 15 of locating holding tank department along circumference, and frame 15 detachably sets up and forms convex hull structure 12 on door body 11. The frame 15 is provided with the through hole 151 matched with the elastic part 13, the elastic part 13 stretches out and draws back at the through hole 151, and the detachable structure of the frame 15, the elastic part 13 and the door body 11 is convenient to maintain and replace the elastic part 13. Meanwhile, the frame 15 can further enhance the structural strength of the convex hull structure 12, and reduce the damage phenomenon in the process of matching the convex hull structure 12 with the front door panel 102.

In some optional embodiments, a plurality of spaced door teeth 14 are further disposed on the periphery of the door body 11, and the door teeth 14 circumferentially surround the outer edge of the convex hull structure 12, and the door teeth 14 can also disperse the original long gap into a plurality of small-segment gaps, when the length a of the small gap is 20mm, the cutoff frequency is 7.5GHz, at this time, the door body assembly 10 cannot penetrate the microwave cutoff frequency of 2.4GHz, so that it can be ensured that the wave leakage phenomenon still does not occur even if the door gap is large.

The frequency spectrum of the microwave oven comprises 2.4GHz-2.6GHz, in some alternative embodiments, the distance between two adjacent front teeth 14 is less than 72.14mm, and the microwave cut-off frequency between two adjacent front teeth 14 is not more than 2.6GHz, so that the effect that the plurality of front teeth 14 can block most of the microwaves is achieved.

The leakage of microwaves from the inside of the microwave cooking appliance 100 at the doorway 101 is reduced by the double blocking of the door teeth 14 and the elastic member 13, and optionally, the door teeth 14 and the elastic member 13 are distributed in a staggered manner, so as to achieve the purpose of blocking each other.

In some optional embodiments, the edge of the door 11 is flanged to form a U-shaped structure with an opening facing away from the front door panel 102, the U-shaped structure forms the door teeth 14, the door teeth 14 of the U-shaped structure surround a choke groove, so that the microwave ray reflected wave incident into the choke groove is reflected and reversed, and the incident wave entering thereafter is cancelled, thereby further avoiding the microwave leakage phenomenon.

Simultaneously, through setting up a plurality of incisors 14 along circumference can reduce a plurality of incisors 14 and additionally occupy the thickness dimension of a body 11 at convex closure structure 12's outer edge, thereby reduce door body assembly 10's thickness by a wide margin, make door body assembly 10's structure more frivolous compact, microwave cooking utensil 100's available space has been increased relatively, avoid door body assembly 10 to take place to damage and phenomenon such as dislocation at long-time frequent switch in-process, and the whole aesthetic property of microwave cooking utensil 100 has been promoted, and then realize promoting product security and reliability, optimize product structure, promote the technological effect that the user used and experienced.

In some alternative embodiments, the length of the front teeth 14 in the direction away from the convex hull structure 12 is not greater than 6mm, the size of the front door panel 102 that cooperates with the front teeth 14 is reduced while the size of the front door panel 14 is reduced, thereby reducing the effect of the front door panel 102 on the cavity volume of the microwave cooking appliance 100, and the smaller the size of the front door panel 102 and the smaller the size of the front door panel 14, the larger the cavity volume of the microwave cooking appliance 100, the higher the volume fraction of the microwave cooking appliance 100.

In some alternative embodiments, the outer edge of the door body 11 is provided with an edge structure 111 circumferentially distributed along the convex hull structure 12, the edge structure 111 and the convex hull structure 12 are located on the same side of the door body 11, and the door tooth 14 is connected with the edge structure 111.

In this embodiment, the microwave cooking appliance 100 is further provided with an edge structure 111, the edge structure 111 is disposed around the door 11 and around the door 11, the direction of the edge structure 111 is the same as the protruding direction of the convex hull structure 12, and the teeth 14 are disposed on the edge structure 111 and connected to the edge structure 111, by disposing the edge structure 111 between the door 11 and the teeth 14, the teeth 14 can be directly connected to the door 11 through the edge structure 111, so as to reduce the extending distance of the teeth 14, thereby improving the structural strength of the teeth 14, avoiding the phenomenon of stress bending due to too long extension of the teeth 14, meanwhile, the edge structure 111 is a continuous and uninterrupted structure surrounding the door 11, which can provide sufficient structural strength support for the teeth 14 and the door 11, and avoid deformation and damage of the door 11 and the teeth 14 during long-term and frequent work, thereby improving the structural stability of the product, optimizing the technical effect of product reliability.

Further, edge structure 111 is directly bent by the plate structure on door 11 and is formed, compare with split connection's edge structure 111, it can promote the production efficiency of product by a wide margin to directly bend from door 11 and form edge structure 111, the link of people's assembly edge structure 111 has been avoided, simultaneously, there is not the connecting gap between edge structure 111 that bends and the door 11, when microwave ray jets into the choke groove that is enclosed by door 11 and edge structure 111, microwave light can not flow out door 11 by the gap between edge structure 111 and door 11, thereby ensure that the microwave separation performance of door 11 is reliable and stable, play and promote product reliability, reduce product manufacturing cost's technological effect.

In some alternative embodiments, the door tooth 14 is a bent structure, one end of the bent structure is connected to the edge structure 111, and the other end of the bent structure extends toward the door body 11 in a U-shaped bent manner.

In this embodiment, the door tooth 14 is a bending structure, one end of the bending structure is connected to the edge structure 111, the other end of the bending structure extends toward the door 11 in a U-shaped bending manner, the door tooth 14 is configured as a bending structure so that the door tooth 14 can be bent to form a discontinuous choke groove together with the edge structure 111 and the convex hull structure 12, the discontinuous choke groove structure can enlarge the bandwidth of the microwave that can be limited by the door assembly 10 of the microwave cooking appliance 100, thereby greatly improving the blocking capability of the door assembly 10 against microwave rays, meanwhile, the door tooth 14 configured with a bending structure can properly reduce the width of the edge structure 111, thereby greatly reducing the material of the edge structure 111, reducing the weight of the door assembly 10, and reducing the phenomena of connection looseness of the door assembly 10 or dislocation of the door assembly 10 caused by the overweight of the door assembly 10, and then realized optimizing product structure, promoted product property ability, improved product reliability, reduced product manufacturing cost's technical effect.

Further, the door tooth 14 can be on integrated into one piece and border structure 111, thereby removed conventional border structure 111 and the 14 connection structure within a definite time of door tooth from, the production and the assembly efficiency of product have been promoted by a wide margin, simultaneously, there is not the connection section between integrated into one piece's door tooth 14 and the border structure 111, can reduce door tooth 14 and take place to buckle and split at its position of being connected with border structure 111 when receiving external force, thereby play and optimize the product structure, promote product reliability, reduce product manufacturing cost's technological effect.

In yet another embodiment of the present invention, the microwave cooking appliance 100 further comprises a protruding structure (not shown) provided on the front door panel 102 and a choke tooth (not shown) located at an outer edge of the protruding structure.

In this embodiment, protruding structure sets up in the front on door plant 102 towards one side of door body 11, the corresponding setting of choke tooth is on protruding structure and is connected with protruding structure, make the partial structure migration of the door tooth 14 of setting originally on door body 11 to the front door plant 102 through setting up protruding structure and the choke tooth that is connected with protruding structure, at protruding structure 12, protruding structure, door tooth 14, under the prerequisite that choke groove that choke tooth and door body 11 enclose satisfied the separation microwave ability, the thickness of door body subassembly 10 has been reduced by a wide margin, make the choke structure between door body subassembly 10 and the front door plant 102 compacter exquisiteness, the non-heating space of microwave cooking utensil 100 has been reduced, play and optimize product inner structure, promote product space utilization, promote the technical effect of product reliability.

In one embodiment of the present invention, when the door assembly 10 is disposed at the doorway 101 of the microwave cooking appliance 100, the end surface of the protruding structure facing the door 11 and the end surface of the tooth 14 facing the cavity structure 20 are located on the same plane.

In this embodiment, when the door assembly 10 is in the closed state, the end surface of the protruding structure on the front door panel 102 facing the door 11 and the end surface of the door 14 facing the cavity structure 20 are located on the same plane, so that during the closing operation of the microwave cooking appliance 100, the end surface of the door 14 facing the cavity structure 20 and the tooth surface of the choke tooth on the protruding structure can be located on the same plane, thereby ensuring that the door 14 and the choke tooth correspond to each other and do not have a misalignment, ensuring that the door 14 and the choke tooth can normally reflect microwave radiation, avoiding a microwave diffraction phenomenon caused by a misaligned gap between the two teeth, preventing a microwave leakage phenomenon caused by the diffraction phenomenon, and further achieving a technical effect of improving product reliability.

In one embodiment of the present invention, when the door assembly 10 is disposed at the doorway 101, the distance between the front door panel 102 and the opposite surface of the convex hull structure 12 is less than or equal to 1/200, which is the operating wavelength of the microwave cooking appliance 100.

In this embodiment, when the door assembly 10 is in the closed state, the door assembly 10 covers the doorway 101, the distance between the front door panel 102 and the opposite surface of the convex hull structure 12 is less than or equal to 1/200 of the operating wavelength of the microwave cooking appliance 100, and the distance between the convex hull structure 12 and the front door panel 102 is limited to be less than 1/200 of the operating wavelength, so that a gap with a stable size can be maintained between the door assembly 10 and the front door panel 102, thereby preventing the microwave diffraction phenomenon caused by too large gap generated during long-time use or working vibration of the microwave cooking appliance 100, and avoiding the microwave leakage phenomenon caused by the diffraction phenomenon, thereby achieving the technical effects of optimizing the structural relationship of the product and improving the working stability and reliability of the product.

A second aspect of the present invention provides a microwave cooking appliance 100, the microwave cooking appliance 100 including: a front door panel 102 surrounding a peripheral outer edge of a doorway 101 provided to the microwave cooking appliance 100; according to the door assembly 10 of the first aspect of the present invention, the door assembly 10 is provided to the microwave cooking appliance 100 and cooperates with the door opening 101 and the front door panel 102.

In this embodiment, the microwave cooking appliance 100 may be a microwave oven, a micro-steaming and baking device or other microwave cooking appliances 100, the door assembly 10 of the microwave cooking appliance 100 of the present invention divides the gap between the convex hull structure 12 and the front door panel 102 into a plurality of sections by the plurality of elastic members 13, so as to reduce the length of each section of gap, and based on the microwave cutoff waveguide wavelength theory, the microwave leakage phenomenon between the door 11 and the front door panel 102 is reduced by the plurality of short gaps distributed at intervals. When the gap between the convex hull structure 12 and the front door panel 102 is large, according to the microwave cutoff waveguide wavelength theory, the elastic pieces 13 separate the long gaps between the convex hull structure 12 and the front door panel 102 by the elastic pieces 13, so that the original long gaps are dispersed into a plurality of small-segment gaps, and the microwave leakage phenomenon between the door body 11 and the front door panel 102 is reduced.

According to one embodiment of the present invention, the width of the edge of the front door panel 102 is no greater than 28 mm.

In the present embodiment, since the length of the door tooth 14 in the direction away from the convex hull structure 12 is not greater than 6mm, the door tooth 14 is engaged with the front door panel 102 of the microwave cooking appliance 100, and the size of the front door panel 102 engaged with the door tooth 14 is also reduced while the size of the door tooth 14 is reduced, so as to reduce the influence of the front door panel 102 on the cavity volume of the microwave cooking appliance 100, the smaller the sizes of the door tooth 14 and the front door panel 102 are, the larger the cavity volume of the microwave cooking appliance 100 is, and the higher the volume ratio of the microwave cooking appliance 100 is.

In some optional embodiments, the distance between the door tooth 14 and the end surface of the opposite side of the front door panel 102 is greater than or equal to 2mm, and in this embodiment, the distance between the door tooth 14 and the end surface of the opposite side of the front door panel 102 is greater than or equal to 2mm, so as to ensure that the microwave radiation irradiated from the cavity of the microwave cooking appliance 100 can flow into the choke groove from the gap between the door tooth 14 and the end surface of the opposite side of the front door panel 102, avoid the phenomenon that the microwave radiation cannot enter the choke groove body due to the too small opening of the choke groove, ensure that the isolation effect of the door body assembly 10 on the microwave radiation is reliable and effective, and further achieve the technical effects of improving the stability and reliability of the product.

The above description is only for the preferred embodiment of the present application, but the scope of the present application 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 application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.