Small-size microwave leakage prevention microwave oven

Abstract

The invention provides a small-size microwave leakage prevention microwave oven which comprises a heating cavity, the heating cavity comprises a main body, and the main body is of a U-shaped structure; the top plate covers the top opening of the U-shaped structure, and the minimum height difference between the top plate and the bottom of the main body is H2; one side edge of the cavity rear plate is connected with the top plate, and the other side edges of the cavity rear plate are connected with the main body; the cavity front plate is arranged opposite to the cavity rear plate and connected with the main body and the top plate, the cavity front plate is provided with an object taking opening, the width and the height of the object taking opening are L1 and H1 respectively, the width of the main body is L2, L1 is smaller than L2, and H1 is smaller than H2. The periphery of the front part of the heating cavity is folded by reducing the size of the object taking opening, so that the microwave leakage value of the small-size microwave oven is further reduced, and the use of a user is safer; by optimizing the size parameters of the reinforcing structure, the microwave energy is effectively limited in the heating cavity so as to improve the energy utilization rate.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a small-volume microwave oven that prevents microwave leakage. Background Art

[0002] Microwave ovens use high-frequency microwaves emitted by magnetrons to act on water molecules in food, using the heat generated by the high-speed movement and friction of water molecules to quickly heat food. They have become one of the indispensable cooking appliances. In recent years, the number of single people has increased year by year and has become an important part of the social unit. Traditional household microwave ovens are not popular with this group of users due to their large size and large space occupation.

[0003] The volume of a small-volume microwave oven is 12-17L. It takes up little space and is easy to carry and move, making it an ideal choice for singles or small families (1-2 people). In addition, for small-sized apartments and housing environments, the indoor space, especially the kitchen, is extremely limited, which also makes small-volume microwave ovens popular among users. When preparing a small-volume microwave oven, if the existing structural components are proportionally reduced, the relevant components need to be re-molded, which will lead to a significant increase in costs and a small cooking cavity with poor applicability. In addition, although the door structure of the existing microwave oven can well shield microwaves, it will cause a more serious microwave leakage problem when used in a small-volume microwave oven.

[0004] In view of this, this application is hereby filed. Summary of the invention

[0005] The problem to be solved by the present application is that the existing structure has a relatively serious microwave leakage problem when used in a small-volume microwave oven.

[0006] In order to solve the above problems, the present application provides a small-volume microwave leakage-proof microwave oven, comprising a heating cavity, wherein the heating cavity comprises:

[0007] A main body, wherein the main body is a U-shaped structure;

[0008] A top plate, which is arranged at the top opening of the U-shaped structure, and the minimum height difference between the top plate and the bottom of the main body is H2;

[0009] A cavity rear plate, one side of which is connected to the top plate, and the other sides of which are connected to the main body;

[0010] The cavity front plate is arranged opposite to the cavity rear plate and connected to the main body and the top plate. The cavity front plate is provided with a material taking port, the width and height of the material taking port are L1 and H1 respectively, and the width of the main body is L2, wherein L1<L2 and H1<H2.

[0011] The existing microwave ovens usually keep the size of the take-out opening consistent with the heating cavity, which is convenient for taking and putting food, and there is no visual blind spot, which is convenient for cleaning the inside of the microwave oven. However, when preparing a small-volume microwave oven, there is a more serious microwave leakage. The present application can further reduce the microwave leakage value by reducing the size of the take-out opening, which is safer for users to use.

[0012] Preferably, reinforcing structures are provided on all four edges of the taking port, and the reinforcing structures are formed by bending the front plate portion of the cavity toward one side of the main body by 150°-180°, and there is a gap between the free end of the reinforcing structure and the adjacent main body or top plate.

[0013] This arrangement can not only strengthen the food-collecting opening, but also create a gap between the free end of the reinforcement structure and the main body or the top plate to form a groove structure, thereby effectively reducing the leakage of microwaves from the edge of the food-collecting opening.

[0014] Preferably, the reinforcement structure is located on the side of the cavity front plate close to the main body, the reinforcement structure is arranged parallel to the cavity front plate, the minimum distance between the free end of the reinforcement structure and the main body or the top plate is 2-10mm, and the minimum distance between the reinforcement structure and the cavity front plate is 0.5-2mm.

[0015] This arrangement enables the reinforcement structure to cooperate with the cavity front plate 11 to form a choke slot structure similar to a door assembly. When microwaves reach the vicinity of the pickup port, they will encounter reverse reflected waves, and the two will cancel each other out, thereby presenting a very high impedance to effectively block the microwaves in the heating cavity from escaping from the pickup port; at the same time, the microwave energy is effectively confined within the heating cavity, with less microwave leakage and high energy utilization.

[0016] Preferably, the front plate of the cavity is partially recessed to form an avoidance structure, and the avoidance structure is located at the lower side of the access opening. This arrangement can reduce the instability caused by the reduction in the size of the access opening, so that the container containing food can be smoothly placed in the heating cavity, which is convenient for taking and putting operations.

[0017] Preferably, the avoidance structure includes a first avoidance groove and a second avoidance groove extending in the vertical direction, and the first avoidance groove and the second avoidance groove are located on both sides of the access opening and at the same height. This arrangement can increase the maximum width of the access opening, and when in use, a container such as a plate can be smoothly put into the heating chamber through the avoidance structure; if the container such as a plate is too large, it can be smoothly put into the heating chamber by tilting one side thereof through the avoidance structure, and has stronger versatility.

[0018] Preferably, the cavity rear plate portion protrudes toward a side away from the cavity front plate to form a first protrusion, and the first protrusion portion protrudes toward a side away from the cavity front plate to form a second protrusion.

[0019] This arrangement can not only further increase the volume of the heating cavity, but also place containers such as bowls of a certain height in the heating cavity, while making the rear plate of the cavity partially bulge toward the rear side. When the microwave oven is embedded in the kitchen space, the second protrusion abuts against the rear wall of the kitchen space for position limiting, ensuring that the fan assembly in the electrical cavity is at a certain distance from the rear wall of the kitchen space, with low operating resistance and good heat dissipation effect.

[0020] Preferably, a first avoidance portion is provided at the lower part of the cavity rear plate, the first avoidance portion is lower than the avoidance structure and gradually shrinks from top to bottom toward the side close to the main body, and the longitudinal cross section of the first avoidance portion is an arc. This arrangement enables the bottom position of the cavity rear plate to form an avoidance, making it convenient to put containers such as discs into the heating cavity.

[0021] Preferably, the small-volume microwave leakage prevention microwave oven also includes a door assembly for blocking the food taking port; a second avoidance portion is arranged at the lower part of the door assembly, the second avoidance portion and the first avoidance portion are on the same spherical surface, the second avoidance portion gradually shrinks from top to bottom toward one side close to the main body and has an arc-shaped longitudinal cross-section.

[0022] This arrangement enables the door assembly to avoid containers such as round plates, further increasing the practicality of the small-volume microwave oven; it can not only meet the daily cooking needs of a common family of three or a single person, but also the first avoidance portion provided on the rear plate of the cavity and the second avoidance portion provided on the door assembly can meet the use needs of placing larger containers such as dinner plates in individual cases, and is highly practical.

[0023] Preferably, the small-volume microwave-leakage-proof microwave oven further comprises a housing and a control panel, wherein the control panel is located at one side of the door assembly, the heating cavity is located in the housing, and the housing, the door assembly, and the control panel together constitute the appearance of the small-volume microwave-leakage-proof microwave oven. This arrangement can ensure that the overall appearance of the microwave oven is beautiful and the user satisfaction is high.

[0024] Preferably, the volume of the small-volume microwave-leakage-proof microwave oven is 12-17 L. Preferably, the volume of the small-volume microwave-leakage-proof microwave oven is 12-16 L or 13-15 L.

[0025] Compared with the prior art, the small-volume microwave oven with anti-microwave leakage described in the embodiment of the present application has the following beneficial effects: 1) by reducing the size of the take-out opening, a reinforcement structure is formed around the front of the heating cavity, thereby further reducing the microwave leakage value of the small-sized microwave oven, and users are safer to use; 2) by optimizing the size parameters of the reinforcement structure, it produces a microwave release effect similar to that of the choke slot structure, presenting a very high impedance to effectively block the microwaves in the heating cavity from escaping from the take-out opening; the microwave energy is effectively limited in the heating cavity to improve energy utilization; 3) by arranging avoidance structures and a first avoidance portion on both sides of the take-out opening, the practicality of the small-sized microwave oven is improved, and the use requirements of placing larger containers such as round plates can be met, and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a small-volume microwave oven for preventing microwave leakage according to an embodiment of the present application;

[0027] Figure 2 This is a schematic diagram of the structure of the heating chamber of the microwave oven described in Example 1 of the present application;

[0028] Figure 3 This is a schematic structural diagram of the cavity front plate described in Example 1 of the present application;

[0029] Figure 4 It is a front view of the heating chamber of the microwave oven described in Example 1 of the present application;

[0030] Figure 5 for Figure 4 Schematic diagram of the cross section along the AA side;

[0031] Figure 6 for Figure 4 A schematic cross-sectional view along the BB side;

[0032] Figure 7 This is a schematic diagram of the internal structure of a small-volume microwave oven for preventing microwave leakage according to an embodiment of the present application;

[0033] Figure 8 This is an overall schematic diagram of a small-volume microwave oven for preventing microwave leakage according to an embodiment of the present application;

[0034] Fig. 9 This is a schematic diagram of the overall structure of the housing described in the embodiment of the present application;

[0035] Fig.10 It is a schematic diagram of the cross-sectional structure of a small-volume microwave oven for preventing microwave leakage as described in the application example.

[0036] Description of reference numerals:

[0037] 1-heating chamber; 11-front plate of the chamber; 111-access opening; 112-reinforcement structure; 113-avoidance structure; 1131-first avoidance groove; 1132-second avoidance groove; 12-rear plate of the chamber; 121-first protrusion; 122-second protrusion; 123-first avoidance portion; 124-heat dissipation convex bump; 125-first inclined plane; 126-heat dissipation hole; 13-top plate; 14-main body; 2-housing; 21-upper plate; 22-first side plate; 23-second side plate; 231-second inclined plane; 232-first convex bump; 233-first flange; 24-bottom plate; 3-door assembly; 31-second avoidance portion; 4-electrical chamber; 41-magnetron assembly; 42-transformer; 43-high voltage capacitor; 44-heat dissipation fan assembly; 5-control panel; 6-shockproof part. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are described in detail below in conjunction with the accompanying drawings. The technical features of the embodiments of the present application can be combined with each other without conflict.

[0039] It should be noted that all terms used in this application to indicate directionality and position, such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "lower", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection status between the components in a certain state (as shown in the accompanying drawings), and are only for the convenience of describing this application, rather than requiring that this application must be constructed and operated in a specific orientation, and therefore cannot be understood as limiting this application. In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0040] In the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] As the number of singles continues to grow, small-volume microwave ovens are gradually favored by more consumers because of their small footprint. This requires not only a more compact structure, but also an increase in the cooking cavity capacity to improve practicality. Existing microwave ovens can effectively prevent microwave leakage through door structure design, but for small-volume microwave ovens, serious microwave leakage occurs due to size changes. Preventing microwave leakage in small-volume microwave ovens is an urgent problem to be solved. To this end, the applicant proposes the following technical solution: Example 1

[0043] like Figure 1-6 As shown, a small-volume microwave oven for preventing microwave leakage comprises a heating chamber 1, wherein the heating chamber 1 comprises:

[0044] A main body 14, wherein the main body 14 is a U-shaped structure;

[0045] A top plate 13 is provided at the top opening of the U-shaped structure, and the minimum height difference between the top plate 13 and the bottom of the main body 14 is H2;

[0046] A cavity rear plate 12, one side of the cavity rear plate 12 is connected to the top plate 13, and the remaining sides of the cavity rear plate 12 are connected to the main body 14;

[0047] The cavity front plate 11 is arranged opposite to the cavity rear plate 12 and connected to the main body 14 and the top plate 13. The cavity front plate 11 is provided with a taking port 111. The width and height of the taking port 111 are L1 and H1 respectively. The width of the main body 14 is L2, wherein L1<L2 and H1<H2.

[0048] For a microwave oven, usually the size of the take-out opening 111 is consistent with the heating cavity 1, which is not only convenient for taking and putting food, but also eliminates visual blind spots, making it easy to clean the inside of the microwave oven. However, reducing the size of the take-out opening 111 is generally considered to be unfavorable for taking and putting food, which is especially true for a small-volume microwave oven, as it will further reduce its practicality. However, the present application has found through research that for a small-volume microwave oven, although the existing structure can also meet the leakage test standards, the leakage value is relatively high. By reducing the size of the take-out opening 111, the microwave leakage value can be significantly reduced, making it safer for users to use.

[0049] As an example of the present application, the taking port 111 is provided with a reinforcing structure 112, and the reinforcing structure 112 is formed by bending the cavity front plate 11 partly toward the side close to the main body 14 by 150°-180°, and there is a gap between the free end of the reinforcing structure 112 and the main body 14 or the top plate 13. This setting can not only strengthen the taking port 111, but also make a gap between the free end of the reinforcing structure 112 and the main body 14 or the top plate 13 and form a groove structure, which can effectively reduce the leakage of microwaves from the edge of the taking port 111.

[0050] As an example of the present application, the reinforcing structure 112 is located on a side of the cavity front plate 11 close to the main body 14, and the reinforcing structure 112 is arranged parallel to the cavity front plate 11. This arrangement enables the reinforcing structure 112 to cooperate with the cavity front plate 11 to form a choke slot structure similar to a door assembly, and when microwaves reach the vicinity of the take-out port 111, they will encounter reverse reflected waves, and the two will cancel each other out, thereby presenting a very high impedance to effectively prevent the microwaves in the heating cavity 1 from escaping from the take-out port 111.

[0051] Preferably, the minimum distance between the free end of the reinforcing structure 112 and the main body 14 or the top plate 13 is 2-10 mm, the minimum distance between the reinforcing structure 112 and the cavity front plate 11 is 0.5-2 mm, and the reinforcing structure 112 is formed by bending the cavity front plate 11 by 180° toward the side close to the main body 14. This arrangement effectively limits microwave energy within the heating cavity 1 by utilizing the short-circuit open-circuit characteristics, with less microwave leakage and high energy utilization.

[0052] As an example of the present application, the cavity front plate 11 is partially recessed to form an avoidance structure 113, and the avoidance structure 113 is located at the lower side of the access opening 111. This arrangement can reduce the instability caused by the reduction in the size of the access opening 111, so that the container containing food can be smoothly placed in the heating cavity 1, which is convenient for taking and putting operations.

[0053] Preferably, the avoidance structure 113 includes a first avoidance groove 1131 and a second avoidance groove 1132 extending in the vertical direction, and the first avoidance groove 1131 and the second avoidance groove 1132 are located on both sides of the access opening 111 and at the same height. This arrangement can increase the maximum width of the access opening 111, and when in use, a container such as a plate can be smoothly inserted into the heating chamber 1 through the avoidance structure 113; if the container such as a plate is too large, it can be smoothly inserted through the avoidance structure 113 after tilting one side, and has stronger versatility.

[0054] As an example of the present application, the cavity rear plate 12 partially protrudes toward the side away from the cavity front plate 11 to form a first protrusion 121, and the first protrusion 121 partially protrudes toward the side away from the cavity front plate 11 to form a second protrusion 122. This arrangement can not only further increase the volume of the heating cavity 1, but also place containers such as bowls with a certain height in the heating cavity 1, and at the same time make the cavity rear plate 12 partially protrude toward the rear side. When the microwave oven is embedded in the kitchen space, the second protrusion 122 abuts against the rear side wall of the kitchen space to limit the position, ensuring that the fan assembly in the electrical cavity is at a certain distance from the rear side wall of the kitchen space, with low running resistance and good heat dissipation effect.

[0055] Preferably, a first avoidance portion 123 is provided at the lower part of the cavity rear plate 12, the first avoidance portion 123 is provided lower than the avoidance structure 113, a turntable assembly is provided in the heating cavity 1, the first avoidance portion 123 gradually approaches the main body 14 from top to bottom, and the projection of the upper end of the first avoidance portion 123 on the horizontal plane is a first arc, and the circle where the first arc is located is concentric with the circle where the turntable assembly is located. This arrangement can form an avoidance at the bottom position of the cavity rear plate 12, making it convenient to put containers such as a disk into the heating cavity 1.

[0056] As an example of the present application, the small-volume microwave-leakage-proof microwave oven further includes a door assembly 3 for blocking the access opening 111; a second avoidance portion 31 is provided at the lower portion of the door assembly 3, and the projection of the second avoidance portion 31 on the horizontal plane is a second arc, and the second arc is located on the circle where the first arc is located. This arrangement enables the door assembly 3 to avoid containers such as round plates, further increasing the practicality of the small-volume microwave oven; it can not only meet the daily cooking needs of a common family of three or a person living alone, but also because the first avoidance portion 123 provided on the cavity rear plate 12 and the second avoidance portion 31 provided on the door assembly 3 can also meet the use needs of placing larger containers such as dinner plates in some cases, and has strong practicality.

[0057] The microwave oven before improvement, i.e. the taking port 111 is kept flush with the heating cavity 1 and the present application is tested for microwave leakage, and the results are shown in Table 1. As can be seen from Table 1, after improvement, the microwave leakage value of the microwave oven is significantly reduced and is significantly lower than the prescribed limit, and the microwave leakage prevention effect is significant.

[0058] Table 1 Microwave leakage test data before and after improvement Example 2

[0059] For a small-volume microwave oven, the internal space of the electrical cavity 4 is limited. In order to arrange the electrical components reasonably to meet the heat dissipation requirements, the applicant makes the following improvements based on Example 1:

[0060] like Figure 7-10 As shown, a small-volume microwave oven for preventing microwave leakage comprises:

[0061] The heating chamber 1 comprises a chamber back plate 12, wherein the chamber back plate 12 protrudes outward at a position corresponding to the electrical chamber 4 to form a heat dissipation convex bump 124, and a heat dissipation hole 126 is provided on the heat dissipation convex bump 124;

[0062] The electrical cavity 4 is located on one side of the heating cavity 1. A magnetron assembly 41 and a cooling fan assembly 44 are installed in the electrical cavity 4. The cooling fan assembly 44 is fixed on the cooling convex bump 124 and arranged opposite to the cooling hole 126. There is no obstruction between the magnetron assembly 41 and the cooling fan assembly 44.

[0063] This arrangement enables a distance of 10-15 cm between the cooling fan assembly 44 and the magnetron assembly 41, resulting in a good heat dissipation effect, which can meet the temperature rise test requirements of a small-volume microwave oven; by providing the heat dissipation convex hump 124, the overall size of the microwave oven can be made smaller, and the heat dissipation convex hump 124 is located on the rear side without affecting the overall appearance of the microwave oven, and is limited by the cavity rear plate 12 to prevent it from fitting against the rear side wall of the embedded space, so that the air intake is smooth to ensure the heat dissipation effect.

[0064] As an example of the present application, the small-volume microwave leakage prevention microwave oven also includes an outer shell 2, which includes an upper plate 21, a first side plate 22, a bottom plate 24, and a second side plate 23 connected in sequence, and the heat dissipation convex hump 124 is provided with a first inclined surface 125 on a side close to the second side plate 23, and the first inclined surface 125 extends in a direction close to the second side plate 23, and the second side plate 23 is provided with a second inclined surface 231 on a side close to the cavity rear plate 12, and the second inclined surface 231 extends in a direction close to the heat dissipation convex hump 124, and the second inclined surface 231 cooperates with the first inclined surface 125.

[0065] The second bevel 231 cooperates with the first bevel 125 to form a new channel for guiding airflow. When the cooling fan is working, the airflow is guided through this channel, which not only further enhances the heat dissipation effect, but also makes the airflow more evenly distributed in the electrical cavity 4, thereby improving the heat dissipation efficiency. At the same time, the design of the second bevel 231 and the first bevel 125 also helps to increase the accommodation space of the electrical cavity 4. By cleverly utilizing the bevel structure, the internal space of the electrical cavity 4 is more effectively utilized, so that the electrical components can be placed more reasonably, which not only improves the layout flexibility of the electrical components, but also reduces the temperature rise rate of the components inside the electrical cavity 4, thereby further improving the heat dissipation performance.

[0066] The small-volume microwave-leakage-proof microwave oven described in this embodiment not only increases the channel for guiding the airflow but also helps to increase the accommodation space of the electrical cavity 4 by setting the heat dissipation convex bump 124 on the cavity rear plate 12, optimizing the position and blowing direction of the heat dissipation fan assembly 44, setting the heat dissipation hole 126, and using the second inclined surface 231 to cooperate with the first inclined surface 125, effectively solving the problems of small accommodation space of the electrical cavity 4, unreasonable layout of electrical components, and poor heat dissipation effect in the existing small-volume microwave-leakage-proof microwave oven. These improvement measures not only improve the heat dissipation performance of the small-volume microwave-leakage-proof microwave oven, but also optimize the layout and space utilization of the electrical cavity 4, making the entire small-volume microwave-leakage-proof microwave oven more compact, efficient and reliable.

[0067] As a preferred example of the present application, the surfaces of the first inclined surface 125 and the second inclined surface 231 are set to be arc-shaped. This arc-shaped design can reduce the resistance of the airflow when it flows on the inclined surface, improve the smoothness of the airflow, and further improve the heat dissipation performance.

[0068] As a preferred example of the present application, the second side panel 23 partially protrudes outward and forms a first convex bump 232. This arrangement further increases the accommodating space of the electrical cavity 4. On the one hand, it allows more electrical components to be reasonably arranged; on the other hand, it increases the air flow channel and further improves the heat dissipation efficiency. In addition, this design can also enhance the overall mechanical strength of the second side panel 23.

[0069] As a preferred example of the present application, a first flange 233 bent toward the electrical cavity 4 is provided at the rear side of the second side plate 23, and the second inclined surface 231 is provided on the upper part of the first flange 233. This design not only further increases the accommodation space of the electrical cavity 4, but also enhances the overall rigidity of the second side plate 23.

[0070] As an example of the present application, the first side panel 22 and the second side panel 23 are respectively located on both sides of the upper panel 21 and the bottom panel 24. The first side panel 22, the second side panel 23 and the upper panel 21 are set as an integral structure. This design plays multiple roles: First, it simplifies the manufacturing process and reduces the connection points between components, thereby improving the overall strength of the shell 2, and then improving the overall strength and durability of the small-volume anti-microwave leakage microwave oven. Second, the integrated structure also helps to reduce assembly errors and ensure the accuracy and stability of the small-volume anti-microwave leakage microwave oven. Third, it improves production efficiency, so that the small-volume anti-microwave leakage microwave oven can be put on the market faster; Fourth, this design not only enhances the overall aesthetics of the small-volume anti-microwave leakage microwave oven, but also makes the small-volume anti-microwave leakage microwave oven more visually unified and coordinated.

[0071] As a preferred example of the present application, a transformer 42 is installed in the electrical cavity 4. The transformer 42 is installed on the bottom plate 24 of the housing 2. The transformer 42 is located below the magnetron assembly 41 to save space and reduce electromagnetic interference.

[0072] As a preferred example of the present application, a high-voltage capacitor 43 is installed in the electrical cavity 4, and the high-voltage capacitor 43 is installed on the base plate 24. The high-voltage capacitor 43 is located between the transformer 42 and the cavity rear plate 12 and below the cooling fan assembly 44 to achieve a reasonable layout.

[0073] As an example of the present application, a shockproof component 6 is provided in the electrical cavity 4 , and the shockproof component 6 is installed on the bottom plate 24 with one side abutting against the transformer 42 and the other side abutting against the heating cavity 1 .

[0074] This arrangement can prevent the transformer 42 from vibrating when working and causing deformation of the bottom plate 24. The arrangement of the shockproof member 6 can effectively absorb and disperse the vibration energy of the transformer 42 when working, thereby protecting the bottom plate 24 from damage; preventing the transformer 42 from vibrating and generating noise when working, which helps to improve the operating quietness of the entire small-volume microwave oven with anti-microwave leakage and improve user experience; ensuring that the vibration generated by the transformer 42 when working will not damage the structure of the entire electrical cavity 4, thereby extending the service life of the small-volume microwave oven with anti-microwave leakage; Fourth, the fitting arrangement of the shockproof member 6 and the heating cavity 1 can provide additional support for the heating cavity 1, thereby reducing the slight displacement or deformation of the heating cavity 1 caused by the vibration of the transformer 42.

[0075] As a preferred example of the present application, the shockproof member 6 forms a mating surface at the upper part of the side away from the transformer 42, and the mating surface is in contact with the bottom and side of the heating chamber 1. This arrangement can increase the contact area with the heating chamber 1, so that the vibration force of the transformer 42 when working is evenly transmitted to the heating chamber 1, and at the same time, the shockproof member 6 can support the bottom plate 24 of the heating chamber 1, thereby reducing the vibration effect of the transformer 42 on the bottom plate 24.

[0076] The small-volume microwave oven for preventing microwave leakage of the present invention further comprises a control panel 5 located at the front side of the electrical cavity 4. The specific structure and assembly relationship thereof are prior art and will not be described in detail herein.

[0077] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the claims.

Claims

1. A small-volume microwave oven for preventing microwave leakage, comprising a heating chamber (1), characterized in that: The heating chamber (1) comprises: A main body (14), wherein the main body (14) is a U-shaped structure; A top plate (13) is arranged to cover the top opening of the U-shaped structure, and the minimum height difference between the top plate (13) and the bottom of the main body (14) is H2; a cavity rear plate (12), wherein one side edge of the cavity rear plate (12) is connected to the top plate (13), and the remaining side edges of the cavity rear plate (12) are connected to the main body (14); A cavity front plate (11) is arranged opposite to the cavity rear plate (12) and connected to the main body (14) and the top plate (13); the cavity front plate (11) is provided with a material taking opening (111); the width and height of the material taking opening (111) are L1 and H1 respectively; the width of the main body (14) is L2, wherein L1<L2 and H1<H2.

2. The small-volume microwave oven for preventing microwave leakage according to claim 1, characterized in that: Reinforcement structures (112) are arranged on the four edges of the taking port (111), and the reinforcement structure (112) is formed by bending the cavity front plate (11) portion toward one side of the main body (14) by 150°-180°, and there is a gap between the free end of the reinforcement structure (112) and the adjacent main body (14) or top plate (13).

3. The small-volume microwave oven for preventing microwave leakage according to claim 2, characterized in that: The reinforcing structure (112) is located on a side of the cavity front plate (11) close to the main body (14), the reinforcing structure (112) is arranged parallel to the cavity front plate (11), the minimum distance between the free end of the reinforcing structure (112) and the main body (14) or the top plate (13) is 2-10 mm, and the minimum distance between the reinforcing structure (112) and the cavity front plate (11) is 0.5-2 mm.

4. The small-volume microwave oven for preventing microwave leakage according to claim 1, characterized in that: The cavity front plate (11) is partially recessed to form an avoidance structure (113), and the avoidance structure (113) is located at a lower side of the object taking opening (111).

5. The small-volume microwave oven for preventing microwave leakage according to claim 4, characterized in that: The avoidance structure (113) comprises a first avoidance groove (1131) and a second avoidance groove (1132) extending in a vertical direction, wherein the first avoidance groove (1131) and the second avoidance groove (1132) are located on both sides of the object taking opening (111) and at the same height.

6. The small-volume microwave oven for preventing microwave leakage according to claim 1, characterized in that: The cavity rear plate (12) partially protrudes toward a side away from the cavity front plate (11) to form a first protrusion (121), and the first protrusion (121) partially protrudes toward a side away from the cavity front plate (11) to form a second protrusion (122).

7. The small-volume microwave oven for preventing microwave leakage according to claim 6, characterized in that: A first avoidance portion (123) is provided at the lower part of the cavity rear plate (12); the first avoidance portion (123) is provided below the avoidance structure (113) and gradually shrinks from top to bottom towards a side close to the main body (14); the longitudinal cross-section of the first avoidance portion (123) is arc-shaped.

8. The small-volume microwave oven for preventing microwave leakage according to claim 7, characterized in that: The small-volume microwave leakage-proof microwave oven further comprises a door assembly (3) for blocking the food taking opening (111); a second avoidance portion (31) is arranged at the lower part of the door assembly (3); the second avoidance portion (31) and the first avoidance portion (123) are located on the same spherical surface; the second avoidance portion (31) gradually shrinks from top to bottom toward a side close to the main body (14), and has an arc-shaped longitudinal cross-section.

9. The small-volume microwave oven for preventing microwave leakage according to claim 1, characterized in that: The small-volume microwave leakage-proof microwave oven further comprises an outer shell (2) and a control panel (5); the control panel (5) is located on one side of the door assembly (3); the heating cavity (1) is located inside the outer shell (2); the outer shell (2), the door assembly (3) and the control panel (5) together constitute the exterior surface of the small-volume microwave leakage-proof microwave oven.

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