Microwave cooking equipment

Abstract

The utility model relates to microwave cooking equipment which comprises a box body, a magnetron and a waveguide assembly, the box body is provided with a cooking cavity, the magnetron is arranged outside the box body, the waveguide assembly is arranged outside the box body, the waveguide assembly is provided with a waveguide cavity, and the two ends of the waveguide cavity are communicated with the magnetron and the cooking cavity respectively; the waveguide assembly comprises a first shell and a second shell, the first shell comprises a first body part, a first installation part extending outwards from the edge of the first body part and a flange extending from the edge of the first installation part in a bent mode, and the second shell comprises a second body part and a second installation part extending outwards from the edge of the second body part. The first body part and the second body part define a waveguide cavity, and the first installation part and the flange are attached to the two side faces of the second installation part respectively. The contact area between the edge of the first shell and the edge of the second shell is increased, the microwave sealing effect between the first shell and the second shell is guaranteed, and microwave leakage is prevented.

Description

Technical Field

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

[0002] For microwave cooking devices, such as steam convection microwave ovens, etc., the microwave sealing of waveguides is generally carried out by energy storage welding.

[0003] However, in the actual mass production process, if there are problems such as insufficient welding current, resulting in some solder joints becoming desoldered or having false soldering, or problems such as poor flatness of the waveguide or the box body itself, it may lead to microwave leakage. This will not only affect the normal use of the product, but may even affect the safety of users. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a microwave cooking device for the above problems to ensure the effect of microwave sealing and prevent microwave leakage.

[0005] The utility model provides a microwave cooking device, including: a box body provided with a cooking cavity; a magnetron arranged outside the box body; and a waveguide assembly arranged outside the box body, the waveguide assembly is provided with a waveguide cavity, and both ends of the waveguide cavity are respectively communicated with the magnetron and the cooking cavity; the waveguide assembly includes a first shell and a second shell, the first shell includes a first body part, a first mounting part extending outward from the edge of the first body part, and a flanging extending and bending from the edge of the first mounting part, the second shell includes a second body part and a second mounting part extending outward from the edge of the second body part, the first body part and the second body part enclose to form the waveguide cavity, and the first mounting part and the flanging respectively fit with both side surfaces of the second mounting part.

[0006] In the above microwave cooking device, since the flanging extends and bends from the edge of the first mounting part, and the first mounting part and the flanging respectively fit with both side surfaces of the second mounting part, the first mounting part and the flanging can cover the edge of the second mounting part, so as to increase the contact area between the edge of the first shell and the edge of the second shell, improve the fitting effect between the edge of the first shell and the edge of the second shell, thereby ensuring the microwave sealing effect between the first shell and the second shell, as well as the stability and reliability of the connection, preventing microwave leakage, ensuring the normal use of the microwave cooking device, and ensuring the safety of users.

[0007] In one embodiment, the first mounting part and the flanging are respectively riveted to both side surfaces of the second mounting part.

[0008] With such a setting, the fixing method is simple, and during the riveting process, the gaps between the first mounting portion, the second mounting portion and the flanging can be flattened, ensuring the microwave sealing effect.

[0009] In one embodiment, the side surface of the first housing facing away from the second housing is attached to the box body. The box body is provided with a microwave inlet communicating with the cooking cavity, and the first body portion is provided with a microwave outlet communicating with the waveguide cavity. The microwave outlet corresponds to and communicates with the microwave inlet.

[0010] With such a setting, the sealing performance between the first housing and the box body can be ensured, preventing microwave from leaking through the gap between the first housing and the box body during the process of the microwave being conducted from the microwave outlet to the microwave inlet.

[0011] In one embodiment, the size of the microwave outlet is smaller than that of the microwave inlet; and / or, the first housing further includes an extension portion extending inward from the inner edge of the microwave outlet, and the extension portion extends toward the microwave inlet.

[0012] With such a setting, all the microwaves at the microwave outlet can be conducted to the cooking cavity through the microwave inlet, preventing microwave leakage.

[0013] In one embodiment, the microwave cooking device further includes a sealing member disposed between the box body and the first housing, and the sealing member is located outside the microwave outlet and the microwave inlet.

[0014] With such a setting, the sealing member can improve the sealing performance between the first housing and the box body, and can block the microwave leaking through the gap between the first housing and the box body during the process of the microwave being conducted from the microwave outlet to the microwave inlet.

[0015] In one embodiment, the box body is provided with an annular groove with an opening facing the first housing. The annular groove is disposed outside the microwave outlet and the microwave inlet, and at least part of the sealing member is embedded in the annular groove.

[0016] With such a setting, the annular groove can support and position the sealing member, preventing the sealing member from being displaced due to the extrusion of the first housing and the box body and affecting the sealing effect, and also ensuring that the sealing member can be in close contact with the first housing and the box body evenly.

[0017] In one embodiment, the thickness of the sealing member is 2 mm to 5 mm larger than the depth of the annular groove.

[0018] With such a setting, the sealing member can be compressed. Even if there are some positions where the first housing and the box body do not fit well, the microwave sealing can still be achieved under the action of the sealing member, ensuring the microwave sealing effect between the first housing and the box body.

[0019] In one embodiment, the seal is provided as a copper mesh.

[0020] With such an arrangement, the copper mesh, as an electromagnetic shielding material, has a good microwave sealing effect and is inexpensive and easily available.

[0021] In one embodiment, the first mounting portion is provided with a plurality of solder joints arranged at intervals along the circumferential direction of the first body portion, and the first mounting portion is fixedly welded to the box body through the solder joints.

[0022] With such an arrangement, the fixing method is simple, which can ensure the stability and reliability of the connection between the waveguide component and the box body, and the plurality of solder joints can also play a sealing role to prevent microwave leakage through the gap between the first housing and the box body during the process of the microwave conducting from the microwave outlet to the microwave inlet.

[0023] In one embodiment, the microwave cooking device further includes a wave-stirring component disposed at the communication portion between the waveguide cavity and the cooking cavity.

[0024] With such an arrangement, the wave-stirring component can stir and disperse the microwaves at the microwave outlet and the microwave inlet, so that the microwaves can be evenly conducted into the cooking cavity, improving the microwave heating effect on the food materials in the cooking cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0026] Figure 1 is a schematic perspective view of a microwave cooking device according to an embodiment of the present utility model;

[0027] Figure 2 provided by the present utility model Figure 1 is an enlarged schematic view of part A in

[0028] Figure 3 provided by the present utility model Figure 1 is a schematic cross-sectional view of

[0029] Figure 4 provided by the present utility model Figure 3 is an enlarged schematic view of part B in

[0030] Figure 5 provided by the present utility model Figure 1Schematic diagram of the three-dimensional structure of the middle waveguide component from another perspective.

[0031] Reference numerals: 1, box body; 11, cooking cavity; 12, microwave inlet; 13, annular groove; 2, magnetron; 3, waveguide component; 31, waveguide cavity; 32, first housing; 321, first body part; 3211, microwave outlet; 3212, communication port; 322, first mounting part; 3221, solder joint; 323, flange; 324, extension part; 33, second housing; 331, second body part; 332, second mounting part; 4, seal; 5, wave stirring component; 51, motor; 52, stirring part; 6, cover plate. Detailed implementation manners

[0032] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0033] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0036] Unless otherwise defined, all technical and scientific terms used in the description of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the description of this application includes any and all combinations of one or more of the related listed items.

[0037] For microwave cooking devices, such as steam convection microwave ovens, etc., energy storage welding is generally used to perform microwave sealing on the waveguide. However, in the actual mass production process, if there are situations such as insufficient welding current leading to partial solder joints becoming desoldered or having poor solder joints, or problems such as poor flatness of the waveguide or the box body, it may lead to microwave leakage. This will not only affect the normal use of the product, but may even affect the user's safety.

[0038] To solve the above problems, as Figures 1 to 5 shown, the present utility model provides a microwave cooking device to ensure the effect of microwave sealing and prevent microwave leakage.

[0039] As Figures 1 to 4 shown, specifically, the microwave cooking device includes a box body 1, a magnetron 2 and a waveguide assembly 3, wherein: the box body 1 is provided with a cooking cavity 11, the magnetron 2 is arranged outside the box body 1, the waveguide assembly 3 is arranged outside the box body 1, the waveguide assembly 3 is provided with a waveguide cavity 31, and both ends of the waveguide cavity 31 are respectively communicated with the magnetron 2 and the cooking cavity 11; the waveguide assembly 3 includes a first housing 32 and a second housing 33, the first housing 32 includes a first body portion 321, a first mounting portion 322 extending outward from the edge of the first body portion 321 and a flanging 323 extending and bending from the edge of the first mounting portion 322, the second housing 33 includes a second body portion 331 and a second mounting portion 332 extending outward from the edge of the second body portion 331, the first body portion 321 and the second body portion 331 enclose to form the waveguide cavity 31, and the first mounting portion 322 and the flanging 323 are respectively attached to the two side surfaces of the second mounting portion 332.

[0040] In the microwave cooking device provided by the embodiment of the present utility model, the microwave generated by the magnetron 2 is conducted into the cooking cavity 11 through the waveguide cavity 31 to microwave-heat the food in the cooking cavity 11. Since the flanging 323 bends and extends from the edge of the first mounting portion 322, and the first mounting portion 322 and the flanging 323 are respectively attached to the two side surfaces of the second mounting portion 332, the first mounting portion 322 and the flanging 323 can cover the edge of the second mounting portion 332 to increase the contact area between the edge of the first housing 32 and the edge of the second housing 33, improve the fitting effect between the edge of the first housing 32 and the edge of the second housing 33. Even if there is a poor fit between one side surface of the second mounting portion 332 and the first mounting portion 322 or the flanging 323, microwave sealing can be achieved through the other side surface of the second mounting portion 332 and the first mounting portion 322 or the flanging 323, so as to ensure the microwave sealing effect between the first housing 32 and the second housing 33, as well as the stability and reliability of the connection, prevent microwave leakage, ensure the normal use of the microwave cooking device, and ensure the use safety of users.

[0041] Among them, the microwave cooking device can be a steam convection microwave oven, a microwave oven or other devices that can use microwave heating. And the waveguide assembly 3 can be arranged on the top wall of the cabinet 1, or the waveguide assembly 3 can be arranged at other positions such as the bottom wall, the rear wall or the side wall of the cabinet 1 according to actual needs.

[0042] In one embodiment, the first mounting portion 322 and the flanging 323 are respectively riveted to the two side surfaces of the second mounting portion 332. The first mounting portion 322, the second mounting portion 332 and the flanging 323 are fixed by riveting. The fixing method is simple. And even if the flatness of the first mounting portion 322, the second mounting portion 332 or the flanging 323 itself is not good, the gaps between the first mounting portion 322, the second mounting portion 332 and the flanging 323 can be flattened during the riveting process, so as to further ensure the microwave sealing effect.

[0043] Of course, in other embodiments, the first mounting portion 322, the second mounting portion 332 and the flanging 323 can also be fixedly connected by other methods such as energy storage welding, as long as the reliability and sealing performance of the connection between the first mounting portion 322 and the second mounting portion 332 and between the second mounting portion 332 and the flanging 323 can be ensured. The embodiment of the present utility model does not make specific limitations here.

[0044] Such as Figures 3 to 4As shown, in one embodiment, one side of the first housing 32 facing away from the second housing 33 is attached to the box body 1. The box body 1 is provided with a microwave inlet 12 communicating with the cooking cavity 11. The first main body portion 321 is provided with a microwave outlet 3211 communicating with the waveguide cavity 31. The microwave outlet 3211 corresponds to and communicates with the microwave inlet 12. The microwave in the waveguide cavity 31 is conducted into the cooking cavity 11 through the microwave outlet 3211 and the microwave inlet 12. Among them, the fact that one side of the first housing 32 facing away from the second housing 33 is attached to the box body 1 means that at least part of the first main body portion 321 and the first mounting portion 322 can be attached to the box body 1. In this way, the sealing performance between the first housing 32 and the box body 1 can be ensured, and it can be avoided that the microwave leaks through the gap between the first housing 32 and the box body 1 during the process of the microwave being conducted from the microwave outlet 3211 to the microwave inlet 12.

[0045] In another embodiment, it can also be that one side of the second housing 33 facing away from the first housing 32 is attached to the box body 1. The box body 1 is provided with a microwave inlet 12 communicating with the cooking cavity 11. The second main body portion 331 is provided with a microwave outlet 3211 communicating with the waveguide cavity 31. The microwave outlet 3211 corresponds to and communicates with the microwave inlet 12.

[0046] Moreover, a communication port 3212 communicating with the magnetron 2 is further opened on the first main body portion 321 or the second main body portion 331. The microwave generated by the magnetron 2 is conducted into the waveguide cavity 31 through the communication port 3212, and then is conducted into the cooking cavity 11 through the microwave outlet 3211 and the microwave inlet 12.

[0047] As Figure 4 shown, the size of the microwave outlet 3211 is smaller than the size of the microwave inlet 12. Thus, it is ensured that all the microwaves at the microwave outlet 3211 can be conducted into the cooking cavity 11 through the microwave inlet 12, preventing microwave leakage.

[0048] As Figure 4 shown, the first housing 32 further includes an extension portion 324 extending inward along the inner edge of the microwave outlet 3211. The extension portion 324 extends towards the microwave inlet 12. The extension portion 324 can further reduce the size of the microwave outlet 3211, and can guide the microwaves at the microwave outlet 3211 towards the microwave inlet 12 and into the cooking cavity 11, so as to ensure that all the microwaves at the microwave outlet 3211 can be conducted into the cooking cavity 11 through the microwave inlet 12, preventing microwave leakage.

[0049] As Figure 5As shown, in one embodiment, the first mounting portion 322 is provided with a plurality of solder joints 3221 arranged at intervals along the circumferential direction of the first body portion 321. The first mounting portion 322 is fixedly welded to the box body 1 through the solder joints 3221. The first mounting portion 322 and the box body 1 are fixed by welding, and the fixing method is simple, which can ensure the stability and reliability of the connection between the waveguide assembly 3 and the box body 1. Moreover, the plurality of solder joints 3221 are located outside the microwave outlet 3211 and the microwave inlet 12, and can also play a sealing role, avoiding microwave leakage through the gap between the first housing 32 and the box body 1 during the process of microwave conduction from the microwave outlet 3211 to the microwave inlet 12.

[0050] Of course, in other embodiments, the first mounting portion 322 and the box body 1 can also be fixedly connected by other methods such as riveting or screw fastening, as long as the reliability and sealing performance of the connection between the first mounting portion 322 and the box body 1 can be ensured. The embodiments of the present invention do not make specific limitations here.

[0051] As Figures 3 to 4 shown, the microwave cooking device further includes a seal 4 disposed between the box body 1 and the first housing 32. The seal 4 is located outside the microwave outlet 3211 and the microwave inlet 12. The seal 4 can further improve the sealing performance between the first housing 32 and the box body 1, and the seal 4 is located outside the microwave outlet 3211 and the microwave inlet 12, which can block the microwave leaking through the gap between the first housing 32 and the box body 1 during the process of microwave conduction from the microwave outlet 3211 to the microwave inlet 12.

[0052] As Figures 3 to 4 shown, in one embodiment, the box body 1 is provided with an annular groove 13 with an opening facing the first housing 32. The annular groove 13 is disposed outside the microwave outlet 3211 and the microwave inlet 12, and at least part of the seal 4 is embedded in the annular groove 13. The annular groove 13 can support and position the seal 4, avoiding the seal 4 being displaced due to the extrusion between the first housing 32 and the box body 1 and affecting the sealing effect, and also ensuring that the seal 4 can be in close contact with the first housing 32 and the box body 1 evenly.

[0053] Of course, in other embodiments, it can also be that the first housing 32 is provided with an annular groove 13 with an opening facing the box body 1, and at least part of the seal 4 is embedded in the annular groove 13; or, it can also be that the box body 1 is provided with an annular groove 13 with an opening facing the first housing 32, and the first housing 32 is provided with an annular groove 13 with an opening facing the box body 1. The openings of the two annular grooves 13 are opposite to each other, and part of the seal 4 is embedded in the annular groove 13 on the box body 1, and the rest of the seal 4 is embedded in the annular groove 13 on the first housing 32.

[0054] As Figure 4As shown, the thickness H of the seal 4 is 2 mm to 5 mm greater than the depth h of the annular groove 13. The seal 4 has a certain elasticity. During the assembly process, the seal 4 is first installed in the annular groove 13, and then the waveguide assembly 3 is installed on the box body 1, so that the seal 4 is compressed. In this way, in the assembled state, even if there are some poor fits between the first housing 32 and the box body 1, such as some solder joints becoming desoldered or having poor soldering, the microwave seal can still be achieved under the action of the seal 4, ensuring the microwave seal effect between the first housing 32 and the box body 1.

[0055] In one embodiment, the seal 4 is provided as a copper mesh. As an electromagnetic shielding material, the copper mesh has a good microwave seal effect and is inexpensive and easily available. Of course, in other embodiments, the seal 4 can also be made of other materials with microwave seal effects such as silicone rubber and polytetrafluoroethylene.

[0056] As Figure 1 、 Figure 3 and Figure 5 shown, the microwave cooking device further includes a wave stirring component 5 disposed at the communication between the waveguide cavity 31 and the cooking cavity 11. The wave stirring component 5 can stir and disperse the microwaves at the microwave outlet 3211 and the microwave inlet 12, so that the microwaves can be evenly conducted into the cooking cavity 11, improving the microwave heating effect on the food ingredients in the cooking cavity 11.

[0057] Specifically, the microwave cooking device further includes a cover plate 6 disposed on the inner wall of the box body 1. The cover plate 6 can pass microwaves, and the cover plate 6 and the box body 1 enclose a stirring cavity communicating with the microwave inlet 12. The wave stirring component 5 includes a motor 51 and a stirring member 52. The stirring member 52 is disposed in the stirring cavity. The motor 51 is disposed on the side of the second housing 33 away from the first housing 32. The output shaft of the motor 51 passes through the second housing 33, the microwave outlet 3211 and the microwave inlet 12 and is connected to the stirring member 52. The motor 51 drives the stirring member 52 to rotate in the stirring cavity to stir and disperse the microwaves in the stirring cavity.

[0058] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0059] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A microwave cooking device, characterized in that: include: The box body (1) is provided with a cooking cavity (11); A magnetron (2) is arranged outside the box (1); as well as, A waveguide component (3) is arranged outside the box body (1), and the waveguide component (3) is provided with a waveguide cavity (31), and two ends of the waveguide cavity (31) are respectively connected to the magnetron (2) and the cooking cavity (11); The waveguide component (3) comprises a first shell (32) and a second shell (33); the first shell (32) comprises a first main body portion (321), a first mounting portion (322) extending outward from the edge of the first main body portion (321), and a flange (323) bent and extended from the edge of the first mounting portion (322); the second shell (33) comprises a second main body portion (331) and a second mounting portion (332) extending outward from the edge of the second main body portion (331); the first main body portion (321) and the second main body portion (331) are arranged to form the waveguide cavity (31); the first mounting portion (322) and the flange (323) are respectively fitted with two side surfaces of the second mounting portion (332).

2. The microwave cooking device according to claim 1, characterized in that: The first mounting portion (322) and the flange (323) are respectively riveted to two side surfaces of the second mounting portion (332).

3. The microwave cooking device according to claim 1, characterized in that: A side surface of the first shell (32) facing away from the second shell (33) is in contact with the box body (1); the box body (1) is provided with a microwave inlet (12) connected to the cooking cavity (11); the first main body (321) is provided with a microwave outlet (3211) connected to the waveguide cavity (31); the microwave outlet (3211) corresponds to and is connected to the microwave inlet (12).

4. The microwave cooking device according to claim 3, characterized in that: The size of the microwave outlet (3211) is smaller than the size of the microwave inlet (12); and / or, The first shell (32) further comprises an extension portion (324) extending inwardly from the inner edge of the microwave outlet (3211), and the extension portion (324) extends toward the microwave inlet (12).

5. The microwave cooking device according to claim 3, characterized in that: The microwave cooking device further comprises a sealing member (4) arranged between the box body (1) and the first shell body (32), wherein the sealing member (4) is located outside the microwave outlet (3211) and the microwave inlet (12).

6. The microwave cooking device according to claim 5, characterized in that: The box body (1) is provided with an annular groove (13) opening toward the first shell body (32); the annular groove (13) is provided on the outside of the microwave outlet (3211) and the microwave inlet (12); and at least part of the sealing member (4) is embedded in the annular groove (13).

7. The microwave cooking device according to claim 6, characterized in that: The thickness of the sealing member (4) is 2 mm to 5 mm greater than the depth of the annular groove (13).

8. The microwave cooking device according to claim 5, characterized in that: The sealing element (4) is configured as a copper mesh.

9. The microwave cooking device according to claim 3, characterized in that: The first mounting portion (322) is provided with a plurality of welding points (3221) arranged at intervals along the circumference of the first main body portion (321), and the first mounting portion (322) is welded and fixed to the box body (1) via the welding points (3221).

10. The microwave cooking device according to any one of claims 1 to 9, characterized in that: The microwave cooking device further comprises a wave stirring component (5) arranged at the connection point between the waveguide cavity (31) and the cooking cavity (11).

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