Microwave oven filter screen assembly and portable microwave oven

Abstract

The utility model relates to the technical field of microwave ovens, and provides a microwave oven filter screen assembly and a portable microwave oven, the microwave oven filter screen assembly comprises: a filter screen support comprising a support body, the support body is provided with a first mounting groove, and the first mounting groove is internally provided with a first opening; the filtering assembly is arranged in the first mounting groove and covers the first opening; the filter screen gland is used for pressing the filter assembly to the first mounting groove, and the filter screen gland is detachably and fixedly connected with the filter screen bracket; the microwave oven filter screen assembly is used for an air inlet part on the front side of a fan assembly on the microwave oven. According to the microwave oven filter screen assembly and the portable microwave oven, air entering the microwave oven is effectively filtered, the stability and safety of the microwave oven during outdoor use are remarkably improved, the microwave oven is compact in structure, all parts are tightly matched and convenient to replace and clean, and the overall use satisfaction of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave ovens, and particularly relates to a microwave oven filter assembly and a portable microwave oven. Background Art

[0002] In modern society, with the rapid development of technology and the continuous improvement of people's living standards, microwave ovens have become an indispensable kitchen appliance in many families due to their convenient and efficient heating characteristics. In recent years, the usage scenarios of microwave ovens are no longer limited to indoor kitchens, but are gradually expanding to outdoor picnic, camping and other leisure activities. This trend poses new challenges to the design of microwave ovens. Especially in outdoor environments, their heat dissipation performance and the protection of internal structures are particularly important.

[0003] When used outdoors, microwave ovens need to face more complex and changeable environmental conditions. For example, foreign objects such as dust, mosquitoes, and small stones may enter the interior of the microwave oven with the air flow, affecting its normal heat dissipation and possibly causing damage to internal components. Therefore, designing an effective air intake structure filtering system to prevent foreign objects from invading has become an urgent problem to be solved. Summary of the Utility Model

[0004] In view of this, the utility model aims to propose a microwave oven filter assembly and a portable microwave oven, aiming to achieve the effective filtering function of the microwave oven filter assembly, ensure the cleanliness of the air entering the interior of the microwave oven, and improve the stability and safety of the microwave oven when used outdoors through continuous optimization of the design. At the same time, it is convenient for users to replace and clean, which can not only expand the application range of the microwave oven, but also further meet consumers' pursuit of high-quality life.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A microwave oven filter assembly includes:

[0007] A filter bracket, including a bracket body, on which a first installation groove is provided, and a first opening is provided in the first installation groove;

[0008] A filtering component, disposed in the first installation groove and covering the first opening;

[0009] A filter gland, used to press the filtering component into the first installation groove, and the filter gland is detachably and fixedly connected to the filter bracket;

[0010] The microwave oven filter assembly is used for the air intake part in front of the upper blower assembly of the microwave oven.

[0011] Further, the filtering component includes a filter screen layer and a dustproof cotton. The dustproof cotton is compounded on one side of the filter screen layer close to the fan component, and / or the dustproof cotton is compounded on one side of the filter screen layer away from the fan component.

[0012] Further, the filter screen gland includes a gland body. The gland body and the bracket body are fixedly connected by a first limiting card plate and a plug-in buckle.

[0013] Further, the first limiting card plate is arranged on the bracket body, the plug-in buckle is arranged on the gland body, the filtering component includes a filter screen plate body, and a through portion is arranged on the filter screen plate body. The filtering component is fixedly connected to the plug-in buckle through the through portion.

[0014] Further, when the filter screen gland and the filter screen bracket are installed, they are quickly positioned through a first limiting slot and a plug-in protrusion, and the plug-in direction of the plug-in protrusion and the first limiting slot is perpendicular to the clamping direction of the plug-in buckle and the first limiting card plate.

[0015] Further, the gland body includes a first connecting plate. A circumferentially surrounding first flanging is arranged at the outer edge of the first connecting plate. A second opening is opened on the first connecting plate. An air inlet grille is arranged in the second opening. The plug-in protrusion is arranged on the first flanging and arranged downward, and the plug-in buckle is arranged on the first connecting plate and / or the air inlet grille and arranged backward.

[0016] Further, a plurality of the plug-in protrusions are arranged at the lower edge of the first flanging, a plurality of the plug-in buckles are arranged on the gland body and the air inlet grille, and the adjacent plug-in protrusions and the plug-in buckles in the length direction are arranged in a staggered manner.

[0017] Further, the bracket body includes a first support plate and a first surrounding plate. The first surrounding plate is arranged around the outer edge of the first support plate and arranged on one side towards the installation direction of the filter screen gland. The first limiting card plate is arranged at the upper edge of the first opening, the first limiting slot is arranged at the lower edge of the first installation groove, first avoiding grooves are arranged on the first support plates at both ends in the length direction of the first limiting slot, and the first limiting card plates are arranged in the first avoiding grooves. The first limiting card plates arranged in the first avoiding grooves are aligned with the first limiting card plate arranged at the upper edge of the first opening. A first connecting card part and a first connecting stud are arranged at the rear side of the first support plate for fixedly connecting with the front plate of the furnace cavity of the furnace cavity component.

[0018] Compared with the prior art, the microwave oven filter screen assembly of the present utility model has the following advantages:

[0019] (1) The microwave oven filter assembly of the present utility model ensures the cleanliness of the air entering the interior of the microwave oven, avoids damage to the heat dissipation performance and internal components of the microwave oven by foreign objects, enables users to conveniently replace or clean the filter assembly, significantly improves the stability and safety of the microwave oven when used outdoors, and extends the service life of the microwave oven.

[0020] (2) The microwave oven filter assembly of the present utility model realizes effective filtration of the air entering the interior of the microwave oven, significantly improves the stability and safety of the microwave oven when used outdoors, has a compact structure, close cooperation between components, is convenient for replacement and cleaning, and improves the overall user satisfaction.

[0021] Another object of the present utility model is to provide a portable microwave oven, on which the above-mentioned microwave oven filter assembly is provided.

[0022] Furthermore, the portable microwave oven includes a housing assembly, a door cover assembly, a filter assembly, a furnace cavity assembly, and an electrical cavity. Among them, the furnace cavity assembly is arranged inside the housing assembly, the front furnace cavity plate of the furnace cavity assembly is provided with a fan assembly on the front furnace cavity plate, a magnetron device is arranged inside the electrical cavity, and a wind gathering hood with a large front and a small rear is arranged between the magnetron device and its corresponding fan assembly, and the filter assembly covers the air inlet side of the fan assembly.

[0023] Compared with the prior art, the portable microwave oven of the present utility model has the following advantages:

[0024] The portable microwave oven described in the present application significantly reduces the working environment temperature of the magnetron on the basis of ensuring effective filtration of the air entering the interior of the microwave oven, and the optimized heat dissipation effect helps to improve the overall performance and reliability of the microwave oven and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0026] Figure 1 is a schematic structural diagram of the microwave oven filter assembly according to an embodiment of the present utility model;

[0027] Figure 2 is an exploded structural diagram of the microwave oven filter assembly according to an embodiment of the present utility model;

[0028] Figure 3 is an exploded structural diagram of the microwave oven filter assembly from a second perspective according to an embodiment of the present utility model;

[0029] Figure 4 Side view structural schematic diagram of the filter screen support described in the embodiment of the present utility model;

[0030] Figure 5 Side view structural schematic diagram of the second perspective of the filter screen support described in the embodiment of the present utility model;

[0031] Figure 6 Side view structural schematic diagram of the third perspective of the filter screen support described in the embodiment of the present utility model;

[0032] Figure 7 Side view structural schematic diagram of the filter screen pressing cover described in the embodiment of the present utility model;

[0033] Figure 8 Side view structural schematic diagram of the second perspective of the filter screen pressing cover described in the embodiment of the present utility model;

[0034] Figure 9 Node schematic diagram of the first limiting clamping plate on the filter screen support and the plugging clamping buckle on the filter screen pressing cover passing through the filter assembly for clamping and positioning in the embodiment of the present utility model;

[0035] Figure 10 Structural schematic diagram of the portable microwave oven described in the embodiment of the present utility model;

[0036] Figure 11 Explosion structural schematic diagram of the portable microwave oven described in the embodiment of the present utility model;

[0037] Figure 12 Second explosion structural schematic diagram of the portable microwave oven described in the embodiment of the present utility model;

[0038] Figure 13 Schematic diagram of the test result of the anode temperature of the magnetron when adopting the microwave oven filter screen assembly, i.e., the air gathering hood structure, described in the present embodiment;

[0039] Figure 14 Schematic diagram of the test result of the anode temperature of the magnetron in the microwave oven in the prior art;

[0040] Explanation of reference numerals:

[0041] 100 - Filter assembly; 200 - Housing assembly; 300 - Door cover assembly; 400 - Oven cavity assembly; 500 - Electrical chamber; 1 - Filter bracket; 101 - Bracket body; 1011 - First support plate; 1012 - First enclosing plate; 102 - First mounting groove; 103 - First opening; 104 - First support assembly; 1041 - First horizontal support; 1042 - First vertical support; 105 - First limit clamping plate; 106 - First limit slot; 107 - First avoidance groove; 108 - First connection clip; 109 - First connection stud; 2 - Filter gland; 201 - Gland body; 2011 - First connecting plate; 2012 - First flanging; 2013 - Second opening; 202 - Air inlet grille; 2021 - Horizontal grille; 2022 - Vertical grille; 203 - Insertion bump; 204 - Insertion buckle; 3 - Filter component; 301 - Filter plate body; 302 - Through part; 4 - Left shell plate; 5 - Right shell plate; 6 - Rear shell plate; 7 - Upper shell plate; 8 - Bottom shell plate; 9 - Oven cavity rear plate; 10 - Oven cavity front plate; 11 - Oven cavity bottom plate; 12 - Lower bottom plate; 13 - Partition plate; 14 - Magnetron device; 15 - Frequency conversion device; 16 - Air gathering hood; 17 - Fan assembly; 18 - First chamber; 19 - Second chamber. Detailed implementation mode

[0042] In order to make the technical means, achieved objectives and effects of the present utility model easy to understand, the embodiments of the present utility model will be described in detail below with reference to specific illustrations.

[0043] It should be noted that all terms indicating direction and position in the present utility model, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "bottom", "lateral", "longitudinal", "center", etc., are only used to explain the relative position relationship and connection situation between components in a specific state (as shown in the drawings), and are only for the convenience of describing the present utility model, rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0044] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" shall 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] Most microwave ovens on the current market adopt traditional heat dissipation designs. Although they can meet the indoor use requirements to a certain extent, they are inadequate in outdoor environments. In view of this situation, developing an air inlet structure integrating an efficient filtering function has become the key to improving the outdoor use performance of microwave ovens. This air inlet structure needs to have excellent filtering performance, be able to effectively block foreign matters such as mosquitoes and dust from entering, and at the same time ensure smooth air circulation to guarantee the stability and safety of the microwave oven during outdoor use.

[0047] As Figures 1 to 12 shown, this application discloses a microwave oven filter assembly, including:

[0048] A filter screen bracket 1, including a bracket body 101, with a first installation groove 102 provided on the bracket body 101, and a first opening 103 provided in the first installation groove 102;

[0049] A filtering component 3, arranged in the first installation groove 102 and covering the first opening 103;

[0050] A filter screen pressing cover 2, used to press the filtering component 3 into the first installation groove 102, and the filter screen pressing cover 2 is detachably and fixedly connected to the filter screen bracket 1;

[0051] The microwave oven filter assembly is used for the air inlet part in front of the upper fan assembly 17 of the microwave oven.

[0052] The microwave oven filter assembly disclosed in this application, by setting a detachably and fixedly connected filter screen pressing cover 2 and filter screen bracket 1, is used to press and fix the filtering component 3 into the first installation groove 102 on the filter screen bracket 1. A first opening 103 for air inlet to the inner fan assembly 17 is provided in the first installation groove 102. The filtering component 3 can cover the entire first opening 103 for air inlet, thereby forming a filtering barrier. When the microwave oven is used outdoors, the external air needs to pass through the filtering of the filtering component 3 before entering the microwave oven interior through the first opening 103, thus effectively blocking foreign matters such as mosquitoes and dust. The filter screen pressing cover 2 and the filter screen bracket 1 adopt a detachable fixed connection method, which is convenient for users to replace or clean according to needs.

[0053] The microwave oven filter assembly disclosed in this application ensures the cleanliness of the air entering the interior of the microwave oven, avoids damage to the heat dissipation performance and internal components of the microwave oven by foreign objects, enables users to conveniently replace or clean the filter assembly, significantly improves the stability and safety of the microwave oven during outdoor use, and extends the service life of the microwave oven.

[0054] As a preferred example of this application, the filter assembly 3 includes a filter screen layer and a dust-proof cotton. The dust-proof cotton is laminated on one side of the filter screen layer close to the fan assembly 17, and / or the dust-proof cotton is laminated on one side of the filter screen layer away from the fan assembly 17. This setting achieves a dual filtering effect by combining the filter screen layer and the dust-proof cotton. The filter screen layer can effectively block larger foreign objects such as mosquitoes and dust, while the dust-proof cotton can further adsorb fine dust particles, ensuring that the air entering the interior of the microwave oven is cleaner, reducing the accumulation of dust inside the heat dissipation system, thereby maintaining a good heat dissipation effect and improving the stability and safety of the microwave oven. At the same time, the design of the filter assembly takes into account the needs of easy user maintenance and replacement. Users can regularly replace or clean the filter screen layer and the dust-proof cotton according to the usage situation to maintain the filtering effect and heat dissipation performance of the microwave oven.

[0055] As a preferred example of this application, the filter screen pressing cover 2 includes a pressing cover body 201. The pressing cover body 201 is fixedly connected to the bracket body 101 through a first limit card plate 105 and a plug-in buckle 204. Specifically, the first limit card plate 105 is arranged on the bracket body 101, and the plug-in buckle 204 is arranged on the pressing cover body 201. During installation, when the filter assembly 3 is installed in place on the filter screen pressing cover 2 or on the filter screen bracket 1, by pressing the filter screen pressing cover 2 onto the filter screen bracket 1, the first limit card plate 105 and the plug-in buckle 204 are cooperatively and fixedly connected by clamping, realizing the detachable fixation of the filter screen pressing cover 2 and the filter screen bracket 1.

[0056] This setting discloses a detachable connection method between the filter screen pressing cover 2 and the filter screen bracket 1, which can effectively prevent the filter screen pressing cover from loosening or falling off during use, ensure that the filter assembly always remains in the correct position, thereby providing a continuous and effective filtering effect, with convenient installation and disassembly, without the need to use complex tools or perform cumbersome operations, and improving the user experience.

[0057] As a preferred example of this application, the filter assembly 3 includes a filter screen plate body 301. A through portion 302 is arranged on the filter screen plate body 301. The filter assembly 3 is fixedly connected to the plug-in buckle 204 through the through portion 302.

[0058] This setting improves the stability of the connection between the filter component 3 and the filter screen gland 2 on the one hand, ensuring that the filter component can be firmly fixed in place after installation and is not prone to loosening or falling off. On the other hand, since the filter component 3 is fixed to the filter screen gland 2 by snap connection, when the user needs to replace or clean the filter component 3, the filter component 3 can be taken out together while removing the filter screen gland 2, simplifying the operation and improving the convenience of use for the user, making the cleaning and maintenance work of the microwave oven filter screen component simpler and more convenient. In the example of this application, the through portion 302 can be a through hole or a through groove. The through hole is provided at a position near the middle of the filter screen plate body 301, and the through groove is provided at an end position in the length direction of the filter screen plate body 301.

[0059] As a preferred example of this application, when the filter screen gland 2 and the filter screen bracket 1 are installed, they are quickly positioned through the first limit slot 106 and the insertion bump 203, and the insertion direction of the insertion bump 203 and the first limit slot 106 is perpendicular to the snap connection direction of the insertion snap 204 and the first limit plate 105. Specifically, in the example of this application, the insertion bump 203 is provided on the gland body 201 and arranged downward. Correspondingly, the first limit slot 106 is provided at the lower end of the first installation groove 102 on the bracket body 101, and the insertion snap 204 is arranged toward the rear side.

[0060] This setting realizes the quick positioning of the filter screen gland 2 and the filter screen bracket 1 during installation, simplifies the installation process, and improves the installation efficiency. The perpendicular design of the insertion direction of the insertion bump 203 and the first limit slot 106 and the snap connection direction of the insertion snap 204 and the first limit plate 105 increases the structural stability, making the connection between the filter screen gland 2 and the filter screen bracket 1 more firm and not prone to loosening.

[0061] In the example of this application, the gland body 201 includes a first connecting plate 2011. A circumferentially surrounding first flange 2012 is provided at the outer edge of the first connecting plate 2011. A second opening 2013 is opened on the first connecting plate 2011, and an air inlet grille 202 is provided in the second opening 2013. The air inlet grille 202 includes a horizontal grille 2021 and a vertical grille 2022. The horizontal grille 2021 and the vertical grille 2022 are arranged in a staggered manner. Preferably, the horizontal grille 2021 and the vertical grille 2022 are perpendicularly staggered. The insertion bump 203 is provided on the first flange 2012, and the insertion snap 204 is provided on the first connecting plate 2011 and / or the air inlet grille 202.

[0062] This setting discloses a specific structure of a filter screen gland 2. The design of the air inlet grille 202 can more effectively guide the air flow, improve the air inlet efficiency, and at the same time help filter out impurities and particulate matters, optimize the air inlet effect, and protect the internal components.

[0063] In the example of the present application, multiple groups of the plugging bumps 203 are arranged at the lower edge of the first flanging 2012, and multiple groups of the plugging buckles 204 are arranged at the opposite ends in the length direction of the first connecting plate 2011 and on the longitudinal grille 2022. The multiple groups of the plugging bumps 203 and the multiple groups of the plugging buckles 204 are arranged in a staggered manner, that is, the adjacent plugging bumps 203 and the plugging buckles 204 in the length direction are arranged in a staggered shape. Specifically, four groups of the plugging bumps 203 are arranged at the opposite ends of the lower edge of the first flanging 2012 and near the joints between the two longitudinal grilles 2022 and the first flanging 2012, and four groups of the plugging buckles 204 are arranged at the opposite ends in the length direction of the first connecting plate 2011 and on the two longitudinal grilles 2022. The plugging bumps 203 and the plugging buckles 204 are arranged in a paired manner as a whole but are relatively staggered in space. On the one hand, multi-point fixation is achieved, enhancing the connection stability between the filter screen gland 2 and the filter screen bracket 1. On the other hand, it can be quickly and accurately positioned and aligned during installation, improving the installation efficiency and reducing the installation difficulty.

[0064] As a preferred example of the present application, the bracket body 101 includes a first support plate 1011 and a first surrounding plate 1012. The first support plate 1011 is integrally rectangular. The first surrounding plate 1012 is arranged around the outer edge of the first support plate 1011 and is disposed toward the side of the installation direction of the filter screen pressing cover 2. A first support assembly 104 is disposed in the first opening 103. The first support assembly 104 includes a first horizontal support 1041 and a first vertical support 1042. The first horizontal support 1041 and the first vertical support 1042 are arranged in a perpendicular and staggered manner. A first limit clamping plate 105 is disposed at the upper edge of the first opening 103. A first limit slot 106 is disposed at the lower edge of the first installation groove 102. First avoidance grooves 107 are disposed on the first support plate 1011 at both ends in the length direction of the first limit slot 106. The first limit clamping plate 105 is disposed in the first avoidance grooves 107. The first limit clamping plate 105 disposed in the first avoidance grooves 107 is aligned with the first limit clamping plate 105 disposed at the upper edge of the first opening 103. A first connection clamping member 108 and a first connection stud 109 are disposed at the rear side of the first support plate 1011 for fixedly connecting with the furnace cavity front plate 10 of the furnace cavity assembly 400. This setting discloses a specific structure of the filter screen bracket 1. Through the combined design of the first support plate 1011 and the first surrounding plate 1012, a stable bracket body 101 is formed, providing a solid support for the filter screen assembly. Combining the first horizontal support 1041 and the first vertical support 1042 arranged in a perpendicular and staggered manner in the first opening 103 further enhances the stability of the bracket body 101. At the same time, the detachable fixing structure between the bracket body 101 and the filter screen pressing cover 2 and its own connection and fixing structure are optimized. The overall structural design is reasonable, the cooperation between components is tight, and there is no redundant part, making the entire filter screen assembly more concise and beautiful in appearance.

[0065] The present utility model also discloses a portable microwave oven, on which the microwave oven filter screen assembly as described in the above embodiment is provided.

[0066] As a specific example of the present application, the portable microwave oven includes a housing assembly 200, a door cover assembly 300, a filter screen assembly 100, a furnace cavity assembly 400, and an electrical cavity 500. Among them, the furnace cavity assembly 400 is arranged inside the housing assembly 200, the electrical cavity 500 is arranged below the furnace cavity assembly 400, a partition plate 13 arranged in the electrical cavity 500 divides it into a first cavity 18 and a second cavity 19, a frequency conversion device 15 is arranged in the first cavity 18, a magnetron device 14 is arranged in the second cavity 19, two groups of fan assemblies 17 are arranged at the front ends of the first cavity 18 and the second cavity 19, corresponding to the magnetron device 14 and the frequency conversion device 15 respectively, a wind collecting hood 16 with a large front and a small rear is arranged between the magnetron device 14 and its corresponding fan assembly 17, a filter screen assembly 100 is arranged on the front side of the fan assembly 17, a door cover assembly 300 is arranged above the filter screen assembly 100, and the door cover assembly 300 can cover the front opening of the furnace cavity assembly 400.

[0067] As a specific example of the present application, the furnace cavity assembly 400 includes furnace cavity side walls enclosing a mouth shape and a furnace cavity front plate 10 and a furnace cavity rear plate 9 arranged at the front and rear ends of the furnace cavity side walls. First mounting holes for mounting the fan assemblies 17 are arranged on the furnace cavity front plate 10, and two of the first mounting holes are respectively used for mounting two fan assemblies 17. An electrical cavity 500 for mounting the magnetron device 14 and the frequency conversion device 15 is formed between the furnace cavity front plate 10, the furnace cavity rear plate 9 and the left shell plate 4 and the right shell plate 5 of the housing assembly 200. The upper side of the electrical cavity 500 is the furnace cavity bottom plate 11 of the furnace cavity side walls, and the lower side of the electrical cavity 500 is the lower bottom plate 12, so as to form a relatively sealed electrical cavity 500 that can form gas cooling and heat dissipation according to the gas blowing direction of the fan assemblies 17. Second air outlet holes are arranged on the furnace cavity rear plate 9 at positions corresponding to the air outlet flow direction of the fan assemblies 17. Correspondingly, first air outlet holes are arranged on the rear shell plate 6 of the housing assembly 200 at positions corresponding to the second air outlet holes, so as to reliably discharge the blowing air flow of the fan assemblies 17.

[0068] As a specific example of the present application, the housing assembly 200 further includes an upper shell plate 7 and a bottom shell plate 8. The upper shell plate 7, the bottom shell plate 8, the left shell plate 4, the right shell plate 5, and the rear shell plate 6 form the housing assembly 200 of the portable microwave oven with a front opening. A front bracket is arranged on the front side of the furnace cavity assembly 400 for mounting and fixing the door cover assembly 300.

[0069] In the portable microwave oven described in the present application, by comprehensively applying various design elements, the partition plate 13 divides the electrical chamber 500 into two independent chambers, and the frequency conversion device 15 and the magnetron device 14 are respectively installed, effectively isolating the thermal interference between different devices. The combined use of the two groups of fan assemblies 17 and the air collecting hood 16 in the space where the magnetron device 14 is installed ensures the directional heat dissipation for key components, improves the heat dissipation efficiency, and the overall structural design is compact and reasonable, which not only reduces the product volume but also facilitates carrying.

[0070] For the improved portable microwave oven of the present application, the applicant detected the anode temperature of the magnetron for the structure with dust-proof cotton and air collecting hood and the structure without dust-proof cotton and air collecting hood. The test results when the dust-proof cotton was installed are as Figure 13 shown, and the test results when the dust-proof cotton was not installed are as Figure 14 shown. The following conclusions can be drawn:

[0071] In the portable microwave oven disclosed in the present application, by setting the microwave oven filter assembly including dust-proof cotton, its air-cooling performance for the magnetron device 14 still meets the performance requirements during the normal use of the microwave oven. And combined with the structure of the air collecting hood 16 with a larger front and a smaller rear, the anode temperature of the magnetron is about 20°C lower than that of the air-cooling scheme of the microwave oven without dust-proof cotton and air collecting hood 16 in the prior art, significantly reducing the working environment temperature of the magnetron. The optimized heat dissipation effect helps to improve the overall performance and reliability of the microwave oven and extend its service life.

[0072] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A microwave oven filter assembly, characterized in that: include: A filter support (1) comprises a support body (101), a first mounting groove (102) is arranged on the support body (101), and a first opening (103) is arranged in the first mounting groove (102); A filter assembly (3) is disposed in the first installation groove (102) and covers the first opening (103); A filter press cover (2) is used to press the filter assembly (3) to the first installation groove (102), and the filter press cover (2) is detachably fixedly connected to the filter support (1); The microwave oven filter assembly is used for the air inlet portion on the front side of the fan assembly (17) on the microwave oven.

2. The microwave oven filter assembly according to claim 1, characterized in that: The filter assembly (3) comprises a filter layer and dustproof cotton, wherein the dustproof cotton is compounded on a side of the filter layer close to the fan assembly (17), and / or the dustproof cotton is compounded on a side of the filter layer away from the fan assembly (17).

3. The microwave oven filter assembly according to claim 1 or 2, characterized in that: The filter screen gland (2) comprises a gland body (201), and the gland body (201) and the bracket body (101) are clamped and fixed via a first limit clamping plate (105) and a plug-in buckle (204).

4. The microwave oven filter assembly according to claim 3, characterized in that: The first limiting clamping plate (105) is arranged on the bracket body (101), the plug-in buckle (204) is arranged on the pressure cover body (201), the filter assembly (3) comprises a filter plate body (301), a through-portion (302) is arranged on the filter plate body (301), and the filter assembly (3) is fixed to the plug-in buckle (204) by clamping the through-portion (302).

5. The microwave oven filter assembly according to claim 4, characterized in that: The filter cover (2) and the filter bracket (1) are quickly positioned during installation via the first limiting slot (106) and the plug-in protrusion (203), and the plug-in direction of the plug-in protrusion (203) and the first limiting slot (106) is perpendicular to the plug-in buckle (204) and the first limiting clamping plate (105).

6. The microwave oven filter assembly according to claim 5, characterized in that: The gland body (201) comprises a first connecting plate (2011), a circumferentially arranged first flange (2012) is arranged at the outer edge of the first connecting plate (2011), a second opening (2013) is opened on the first connecting plate (2011), an air inlet grille (202) is arranged in the second opening (2013), the plug-in protrusion (203) is arranged on the first flange (2012) and is arranged downward, and the plug-in buckle (204) is arranged on the first connecting plate (2011) and / or the air inlet grille (202) and is arranged backward.

7. The microwave oven filter assembly according to claim 6, characterized in that: A plurality of the plug-in protrusions (203) are arranged on the lower edge of the first flange (2012), and a plurality of the plug-in buckles (204) are arranged on the pressure cover body (201) and the air inlet grille (202), and the plug-in protrusions (203) and the plug-in buckles (204) adjacent to each other in the length direction are arranged in a staggered manner.

8. The microwave oven filter assembly according to claim 7, characterized in that: The support body (101) comprises a first support plate (1011) and a first enclosure plate (1012); the first enclosure plate (1012) is arranged around the outer edge of the first support plate (1011) and is arranged on the side facing the installation direction of the filter gland (2); the first limiting clamping plate (105) is arranged on the upper edge of the first opening (103); the first limiting slot (106) is arranged on the lower edge of the first installation slot (102); the first support plates (1011) are provided at both ends of the length direction of the first limiting slot (106); A first avoidance groove (107) is arranged on the plate (1011), and a first limiting clamping plate (105) is arranged in the first avoidance groove (107). The first limiting clamping plate (105) arranged in the first avoidance groove (107) is aligned with the first limiting clamping plate (105) arranged on the upper edge of the first opening (103). A first connecting clamp (108) and a first connecting stud (109) are arranged on the rear side of the first support plate (1011) for fixed connection with the furnace cavity front plate (10) of the furnace cavity assembly (400).

9. A portable microwave oven, characterized in that: The portable microwave oven is provided with a microwave oven filter assembly as claimed in any one of claims 1 to 8.

10. The portable microwave oven according to claim 9, characterized in that: The invention comprises a shell component (200), a door cover component (300), a filter component (100), a furnace cavity component (400) and an electrical chamber (500), wherein the furnace cavity component (400) is arranged inside the shell component (200), the front end of the furnace cavity component (400) is a furnace cavity front plate (10), a fan component (17) is arranged on the furnace cavity front plate (10), a magnetron device (14) is arranged inside the electrical chamber (500), a wind collecting hood (16) with a larger front part and a smaller rear part is arranged between the magnetron device (14) and its corresponding fan component (17), and the filter component (100) covers the air inlet side of the fan component (17).

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