Filter screen assembly structure and vehicle-mounted microwave oven

Abstract

The utility model provides a filter screen assembly structure and a vehicle-mounted microwave oven, the filter screen assembly structure comprises a cavity and a front cover plate, the front cover plate is arranged at the front end of the cavity, a filter screen assembly is arranged at the position of the front cover plate close to the top, an air guide cover is arranged at the position of the outer side of the top of the cavity close to the front cover plate, and the air guide cover is arranged in the cavity. The air guide cover covers the rear side of the filter screen assembly, hot air exhausted from the interior of the cavity enters the air guide cover through the air outlet holes in the cavity and then is exhausted to the outside through the filter screen assembly, and the filter screen assembly is detachably connected with the air guide cover. The quick detachable connection of the filter screen assembly is realized, the filter screen assembly can be conveniently detached and cleaned, oil drops or other pollutants on the filter screen assembly can be timely removed, the normal use of the microwave oven is ensured, and the elastic connecting sleeve is arranged, so that the elastic part is stressed and deformed due to the insertion of the connecting pin to tightly wrap the end part of the connecting pin; the filter screen assembly is prevented from loosening or falling off due to microwave oven vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave ovens, and in particular to a filter screen assembly structure and a vehicle-mounted microwave oven. Background Art

[0002] Microwave ovens do not require open flames or gas to heat food, and are easy to use. They are suitable for long-distance travel in RVs or trucks to heat food at any time. The interior space of RVs or trains is limited, and the installation cabinet of the general microwave oven is set at the top edge of the interior space of the vehicle. The top and rear wall space of the microwave oven are generally in contact with the vehicle body or the wall of the installation cabinet. Therefore, the heat dissipation port of the general vehicle-mounted microwave oven is generally set at the front to ensure the normal heat dissipation of the microwave oven. However, during the microwave heating process, the food will expand due to heating and will produce some oil droplets or other small particles. The oil droplets or other small particles will be discharged to the outside of the microwave heating cavity through the heat dissipation port along with the internal cold air, which may easily lead to blockage of the heat dissipation port. After long-term use, it will affect the normal heat dissipation of the microwave oven. In addition, the heat dissipation port is integrated with the wall of the microwave cavity, which makes it difficult to disassemble and clean the heat dissipation port, affecting its normal use. Utility Model Content

[0003] In view of this, the utility model aims to provide a filter assembly structure and a vehicle-mounted microwave oven to solve the problems in the prior art that the heat dissipation port of the microwave oven is easily blocked and difficult to clean.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A filter assembly structure is arranged on a microwave oven, the filter assembly structure comprises a cavity and a front cover plate, the front cover plate is arranged at the front end of the cavity, a filter assembly is arranged at a position near the top of the front cover plate, an air guide cover is arranged at a position near the front cover plate on the outside of the top of the cavity, the air guide cover covers the rear side of the filter assembly, hot air discharged from the inside of the cavity enters the air guide cover through the air outlet on the cavity, and is then discharged to the outside through the filter assembly, and the filter assembly and the air guide cover are detachably connected.

[0006] Furthermore, a front cover is provided at the front end opening of the cavity, a top cover is provided at the top of the cavity, the front cover is vertically arranged with the top cover, an air outlet is provided on the top cover near the front cover, and a filter assembly is provided near the top of the front cover.

[0007] Furthermore, connecting pins are provided at both ends of the filter assembly, and elastic connecting sleeves are provided at both ends of the air guide cover. The connecting pins are preassembled with the filter assembly, the elastic connecting sleeves are preassembled with the air guide cover, and the connecting pins are inserted into the front cover plate and the elastic connecting sleeve.

[0008] Furthermore, a mounting hole is provided at a position near the top of the front cover plate, and fixing ears are provided at the left and right ends of the mounting hole, the fixing ears extend in a direction close to the center of the mounting hole, and limiting edges are provided at the upper and lower edges of the mounting hole, the limiting edges are bent and extended in a direction toward the center of the mounting hole, and the limiting edges and the fixing ears fix and limit the filter assembly.

[0009] Furthermore, the filter assembly includes a filter screen and an oil absorption layer, the filter screen is configured as a porous structure, and flanges are provided around the filter screen, and the flanges protrude and extend backwards.

[0010] Furthermore, connecting pins are provided at both ends of the lower part of the air guide cover, and connecting holes are provided on the connecting pins, and the air guide cover is connected to the top cover of the cavity through the connecting pins.

[0011] Furthermore, the air guide hood is configured as an inclined structure, the lower end of the air guide hood is located at the rear side of the air outlet, the top end of the air guide hood is in contact with the front cover plate, and the air guide hood as a whole forms a structure inclined forward from bottom to top.

[0012] Furthermore, the elastic connecting sleeve includes a first fixing part, a first connecting part and an anti-slip part which are arranged in sequence from front to back. The first fixing part, the first connecting part and the anti-slip part are arranged integrally. The outer diameter of the first fixing part is larger than the outer diameter of the first connecting part. The outer diameter of the anti-slip part close to one end of the first connecting part is larger than the outer diameter of the first connecting part.

[0013] Furthermore, the elastic connecting sleeve is configured as a hollow structure, and the connecting pin is inserted into the hollow structure of the elastic connecting sleeve. The connecting pin includes a handle portion, a second connecting portion, and a second fixing portion arranged in sequence from front to back. The outer diameter of the handle portion is larger than the outer diameter of the second connecting portion, and the outer diameter of the second connecting portion is larger than the outer diameter of the second fixing portion.

[0014] Compared with the prior art, the filter assembly described in the utility model has the following advantages:

[0015] The filter assembly is inserted into the front cover plate and the elastic connection sleeve to achieve a quick and detachable connection of the filter assembly, which is convenient for disassembly and cleaning of the filter assembly, and timely removal of oil droplets or other contaminants on the filter assembly to ensure normal use of the microwave oven. The setting of the elastic connection sleeve allows the elastic part to be deformed by force due to the insertion of the connecting pin and tightly wrap the end of the connecting pin to prevent the filter assembly from loosening or falling out due to the vibration of the microwave oven. The setting of the air guide hood prevents the hot air discharged from the cavity from entering the space above the cavity to affect the heat dissipation and normal use of the electrical components. The air guide hood separates the hot air discharged from the cavity from electrical components such as the waveguide box and the magnetron, and guides the hot air in the cavity to be discharged to the outside of the microwave oven body.

[0016] The utility model also provides a vehicle-mounted microwave oven, which comprises a body and a door assembly, wherein the door assembly is arranged at the front end of the body, and further comprises the filter assembly structure described above, wherein the filter assembly structure is arranged on the body.

[0017] The advantages of the vehicle-mounted microwave oven and the above-mentioned filter assembly structure over the prior art are the same, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted microwave oven according to an embodiment of the utility model;

[0019] Figure 2 This is a side view of the vehicle-mounted microwave oven according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the vehicle-mounted microwave oven according to an embodiment of the utility model from another perspective;

[0021] Figure 4 This is a schematic structural diagram of the vehicle-mounted microwave oven according to an embodiment of the utility model after the air guide cover is removed;

[0022] Figure 5 It is a partial cross-sectional view of an embodiment of the utility model;

[0023] Figure 6 for Figure 5 A partial enlarged view of the middle A area;

[0024] Figure 7 This is a schematic diagram of the filter assembly according to an embodiment of the utility model;

[0025] Figure 8 This is an exploded view of the filter assembly described in an embodiment of the utility model;

[0026] Fig. 9 Schematic diagram of the front cover structure according to the embodiment of the utility model

[0027] Fig.10 This is a schematic structural diagram of the front cover plate according to an embodiment of the utility model from another viewing angle;

[0028] Fig.11 This is a schematic diagram of the connecting bracket structure according to an embodiment of the utility model;

[0029] Fig.12 A side view of the connecting bracket according to an embodiment of the utility model;

[0030] Fig.13 This is the air guide hood structure described in the embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 1-body, 10-cavity, 11-front cover, 111-mounting hole, 112-limiting edge, 113-fixing ear, 12-filter assembly, 121-oil absorption layer, 122-filter, 1221-flange, 1222-fixed fold, 123-connecting pin, 1231-handle, 1232-second connecting part, 1233-second fixing part, 1234-head, 124-hook, 125-fixing seat, 13-magnetron assembly, 131-shell, 14-electrical room, 15-top Cover, 151-air outlet, 16-waveguide box, 17-air guide cover, 171-elastic connecting sleeve, 172-wedge surface, 173-first connecting part, 174-anti-slip part, 175-first fixing part, 176-connecting foot, 18-connecting bracket, 181-fitting plate, 1811-second connecting hole, 182-first connecting ear, 1821-first folding edge, 183-second connecting ear, 1831-second folding edge, 1832-third folding edge, 19-side panel, 191-reinforcement rib, 2-door assembly DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. In addition, the directions involved in the following specific embodiments are briefly described: the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "top", "bottom" and the like mentioned in the embodiments refer to the directions or positional relationships shown in the accompanying drawings, and the term "on..." refers to being directly or indirectly supported by... elements.

[0034] It should be noted that in the description of the present invention, 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, an electrical connection, or mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figures 1 to 13As shown, a filter assembly structure is arranged on a microwave oven, the filter assembly structure includes a cavity 10 and a front cover 11, the cavity 10 is used to hold food to be heated, the front cover 11 is arranged at the front end of the cavity 10, a filter assembly 12 is arranged near the top of the front cover 11, an air guide cover 17 is arranged on the outer side of the top of the cavity 10 near the front cover 11, the air guide cover 17 covers the rear side of the filter assembly 12, the hot air discharged from the cavity 10 enters the air guide cover 17 through the air outlet 151 on the cavity, and then is discharged to the outside of the body through the filter assembly 12. Specifically, connecting pins 123 are provided at both ends of the filter assembly 12, and elastic connecting sleeves 171 are provided at both ends of the air guide cover 17. The filter assembly 12 is quickly and detachably connected by inserting the connecting pins 123 into the front cover plate 11 and the elastic connecting sleeve, which facilitates the disassembly and cleaning of the filter assembly, and timely removes oil droplets or other pollutants on the filter assembly to ensure the normal use of the microwave oven. In addition, the setting of the elastic connecting sleeve allows the elastic part to be deformed by force due to the insertion of the connecting pin and tightly wraps the end of the connecting pin, thereby preventing the filter assembly from loosening or falling out due to the vibration of the microwave oven. The setting of the air guide cover prevents the hot air discharged from the cavity from entering the space above the cavity to affect the heat dissipation and normal use of the electrical components. The air guide cover separates the hot air discharged from the cavity from the electrical components such as the waveguide box and the magnetron, and guides the hot air in the cavity to be discharged to the outside of the microwave oven body.

[0036] Specifically, a front cover plate 11 is provided at the front opening of the cavity 10, a top cover 15 is provided on the top of the cavity 10, the interior of the cavity 10 is separated from the main body 1 by the top cover 15, the front cover plate 11 and the top cover 15 are vertically arranged, an air outlet 151 is provided on the top cover 15 near the front cover plate 11, and the air outlet 151 is connected with the interior of the cavity 10, and correspondingly, a filter assembly 12 is provided near the top of the front cover plate 11, and the air outlet 151 is connected with the filter assembly 12, and the hot air discharged from the interior of the cavity passes through the cavity 10, the air outlet 151, and the filter assembly 12 in sequence and is discharged to the outside of the main body.

[0037] Furthermore, a mounting hole 111 is provided at a position near the top of the front cover 11, and fixing ears 113 are provided at the left and right ends of the mounting hole 111, and the fixing ears 113 extend in a direction close to the center of the mounting hole 111. A corresponding air guide cover 17 is provided at the top rear side of the front cover 11, and the air guide cover 17 covers the mounting hole 111 and the air outlet 151. An elastic connecting sleeve 171 is provided at both ends of the air guide cover 17, and a connecting pin 123 is pre-assembled with the filter assembly 12, and the connecting pin 123 is inserted into the mounting hole 111 and the elastic connecting sleeve to realize the assembly of the filter assembly, and at the same time, the two ends of the air guide cover are tightly connected to the filter assembly to avoid the phenomenon that the air guide cover and the filter assembly are not tightly sealed at both ends, causing hot air to enter the body.

[0038] As one embodiment of the utility model, a limiting edge 112 is provided at the upper and lower edges of the mounting hole 111, and the limiting edge 112 is bent and extended toward the center direction of the mounting hole 111, and the limiting edge 112 limits the upper and lower edges of the filter assembly 12 to ensure that the filter assembly is installed in place. Thus, the limiting edge 112 and the fixing ear 113 cooperate to achieve complete fixing and limiting of the periphery of the filter assembly, preventing the filter assembly from falling backward when the microwave oven vibrates.

[0039] The filter assembly 12 includes a filter 122 and an oil absorption layer 121, wherein the filter 122 is provided with a porous structure, and flanges 1221 are provided around the filter 122, and the flanges 1221 protrude and extend backward, so that a receiving space is formed at the rear side of the filter 122, and the oil absorption layer 121 is installed inside the receiving space. Further, a fixed flange 1222 extending downward is provided at the edge of the upper flange 1221, and a fixed flange 1222 extending upward is provided at the edge of the lower flange 1221, and the fixed flange 1222 is used to fix the oil absorption layer 121 to prevent the oil absorption layer 121 from falling off the filter assembly 12.

[0040] The oil absorption layer 121 is made of an oil-absorbing and breathable material to effectively filter the oil and gas in the hot air discharged from the cavity, preventing a large amount of oil droplets from adhering to the filter mesh. The oil absorption layer is easy to replace, ensuring the long-term normal use of the microwave oven.

[0041] Fixed seats 125 are provided at both ends of the filter screen 122 for pre-assembling the connecting pin 123 , and avoidance gaps are provided at corresponding positions of the oil absorption layer 121 for avoiding the connecting pin 123 and the fixed seats 125 .

[0042] As one embodiment of the utility model, a hook 124 is further provided on the edge of the filter screen 122 for facilitating fixation when the filter screen assembly is sprayed before assembly.

[0043] Connecting feet 176 are provided at both ends of the lower part of the air guide cover 17, and connecting holes are provided on the connecting feet 176. Screws or other connecting parts are used to pass through the connecting holes to connect and fix the lower part of the air guide cover 17 to the top cover 15 of the cavity 10 to prevent the air guide cover 17 from shaking due to force, thereby ensuring the normal operation of the exhaust channel and preventing the air guide cover from being unstable when the connecting pin is inserted to install the filter assembly, affecting the installation of the filter assembly.

[0044] The air guide hood 17 is configured as an inclined structure, with the lower end of the air guide hood 17 located at the rear side of the air outlet 151, the top of the air guide hood 17 in contact with the front cover 11, and the air guide hood 17 as a whole forms a structure inclined forward from bottom to top. The side surface of the air guide hood 17 facing the front cover 11 is configured as a forward inclined structure, guiding the hot air upward and forward to be discharged through the filter assembly 12, thereby avoiding a large amount of hot air gathering inside the air guide hood.

[0045] The two ends of the air guide cover 17 near the upper part are connected and fixed to the front cover plate 11 and the filter assembly 12 through the elastic connecting sleeve 171, so as to realize the fixed connection of the upper end of the air guide cover.

[0046] The elastic connecting sleeve 171 includes a first fixing portion 175, a first connecting portion 173 and an anti-detaching portion 174 which are sequentially arranged from front to back. The first fixing portion 175, the first connecting portion 173 and the anti-detaching portion 174 are arranged integrally, and the first connecting portion 173 is arranged between the first fixing portion 175 and the anti-detaching portion 174. The outer diameter of the first fixing portion 175 is larger than the outer diameter of the first connecting portion 173, and the outer diameter of the anti-detaching portion 174 near the end of the first connecting portion 173 is larger than the outer diameter of the first connecting portion 173. A hole is arranged at a corresponding position on the air guide cover 17, and the first connecting portion 173 is clamped inside the hole, so that the first fixing portion 175 is located at the front side of the air guide cover 17, and the anti-detaching portion 174 is located at the rear side of the air guide cover 17. Due to the material and structural arrangement of the elastic connecting sleeve 171, the elastic connecting sleeve is tightly connected to the air guide cover, preventing the elastic connecting sleeve 171 from escaping from the air guide cover.

[0047] The elastic connecting sleeve 171 is set as a hollow structure, and the connecting pin 123 is inserted into the hollow structure of the elastic connecting sleeve 171. Specifically, the connecting pin 123 includes a handle portion 1231, a second connecting portion 1232 and a second fixing portion 1233 arranged in sequence from front to back. The handle portion 1231, the second connecting portion 1232 and the second fixing portion 1233 are arranged in one piece. The outer diameter of the handle portion 1231 is greater than the outer diameter of the second connecting portion 1232, and the outer diameter of the second connecting portion 1232 is greater than the outer diameter of the second fixing portion 1233. After the connecting pin 123 is inserted in place, the second connecting portion 1232 is inside the fixing seat 125, so that the handle portion 1231 is always exposed to the outside. The connection portion between the handle portion 1231 and the second connecting portion 1231 forms a first step, which is clamped on the outside of the filter screen of the filter assembly to guide the judgment of whether the connecting pin 123 is inserted in place. The setting of the handle portion 1231 facilitates the disassembly and installation of the filter assembly by hand. The second fixing portion 1233 is inserted into the elastic connecting sleeve 171 to achieve fixed connection between the connecting pin 123 and the elastic connecting sleeve 171 .

[0048] Furthermore, a head 1234 is provided at the rear end of the second fixing portion 1233 , and the outer diameter of the head 1234 is larger than that of the second fixing portion 1233 , so that after the connecting pin 123 and the elastic connecting sleeve 171 are installed in place, the connecting pin can be prevented from slipping off the connecting sleeve due to vibration.

[0049] The front end of the inner side of the first fixing part 175 of the elastic connecting sleeve is provided with an outward flaring structure, and the rear end of the head 1234 of the corresponding connecting pin 123 is provided with a contracted inclined surface structure. When the connecting pin 123 is installed and inserted, the head 1234 cooperates with the flaring structure of the first fixing part 175 to guide the connecting pin 123 to be smoothly inserted into the connecting sleeve. Preferably,

[0050] The inner rear end of the elastic connection sleeve anti-detachment part 174 is also provided with an outward flaring structure, the inner wall of which forms a wedge-shaped surface 172. After the head 1234 of the connection pin 123 is inserted into the anti-detachment part 174, it squeezes the wedge-shaped surface 172 of the inner wall of the anti-detachment part 174, so that the inner wall of the anti-detachment part 174 is tightly wrapped around the head 1234, preventing the head 1234 from escaping from the anti-detachment part 174. When pulling out the connection pin 123, it is necessary to use force to separate the head 1234 from the anti-detachment part 174, so as to prevent the filter assembly from loosening when the microwave oven vibrates slightly, and at the same time facilitate the disassembly, cleaning or replacement of the filter assembly.

[0051] In this embodiment, the elastic connecting sleeve 171 is configured to be an elastically deformable material. Preferably, the elastic connecting sleeve 171 is configured to be a silicone sleeve, which not only plays a sealing role in a tight connection, but also has a certain vibration reduction effect to prevent vibration noise from occurring in the filter assembly.

[0052] As one embodiment of the utility model, a magnetron assembly 13 is arranged on the right side of the outside of the cavity 10, a waveguide box 16 is arranged on the top cover 15 of the cavity 10, the top of the magnetron assembly 13 is connected to the waveguide box 16, the left side of the magnetron assembly 13 is connected to the right side cover of the cavity 10, and a connecting bracket 18 is arranged on the right side wall of the magnetron assembly 13, the connecting bracket 18 is used to support and fix the magnetron assembly 13, and the outer side of the connecting bracket 18 is connected to the side plate 19 of the microwave oven. In this way, the top and left and right sides of the magnetron assembly 13 are fixedly supported, so as to prevent the magnetron assembly from shaking or falling off and affecting the normal use of the microwave oven.

[0053] Furthermore, the connecting bracket 18 includes a bonding plate 181, a first connecting ear 182 and a second connecting ear 183, wherein the first connecting ear 182 and the second connecting ear 183 are respectively located at the front and rear sides of the bonding plate 181, the bonding plate 181 is bonded and fixed to the housing 131 of the magnetron assembly 13, the first connecting ear 182 and the second connecting ear 183 are perpendicular to the bonding plate 181, and extend in a direction away from the magnetron assembly 13, so that the connecting bracket 18 forms a U-shaped structure. The first connecting ear 182 and the second connecting ear 183 are both connected and fixed to the side plate 19 of the microwave oven, so as to realize the connection and fixation of the connecting bracket 18 and the magnetron assembly 13.

[0054] A second connection hole 1811 is provided on the bonding plate 181, and a screw or other connecting member is used to pass through the second connection hole 1811 to fix the connection bracket 18 and the magnetron assembly 13 together. Preferably, the middle part of the iron box plate 181 is set as a through-hole structure to facilitate normal heat dissipation of the magnetron assembly and the extension of the parts of the magnetron assembly.

[0055] A first folded edge 1821 is provided at the edge of the first connecting ear 182 away from the bonding plate 181, and a second folded edge 1831 is provided at the edge of the second connecting ear 183 away from the bonding plate 181. The second folded edge 1831 is located near the lower part of the connecting bracket 18. The first folded edge 1821 and the second folded edge 1831 are located in the same plane. The connecting bracket 18 is connected and fixed to the side plate 19 through the first folded edge 1821 and the second folded edge 1831. Preferably, screw holes are provided on the first folded edge 1821 and the second folded edge 1831, and correspondingly, screw holes are also provided at the corresponding parts of the side plate 19. The first folded edge 1821 and the second folded edge 1831 are connected and fixed to the side plate 19 by screws or connecting members. More preferably, a reinforcing rib 191 is provided on the side plate 19, and the connection parts of the first folded edge 1821 and the second folded edge 1831 with the side plate 19 are both provided on the reinforcing rib 191 to prevent the side plate from being deformed by force.

[0056] In this embodiment, the edge of the second connecting ear 183 away from the bonding plate 181 is also provided with a third folded edge 1832, the vertical distance between the third folded edge 1832 and the bonding plate 181 is less than the vertical distance between the second folded edge 1831 and the bonding plate 181, and the second folded edge 1831 is parallel to the third folded edge 1832, so that the second folded edge 1831 has a certain distance from the side plate 19, which is convenient for installing a grounding plate on the second folded edge 1831, and provides installation space for the grounding plate. Grounding the magnetron assembly can prevent the leakage of high-voltage current generated by the magnetron in the studio, which affects the safety of the magnetron.

[0057] As part of the embodiment of the utility model, an electrical chamber 14 is provided at the lower part of the magnetron assembly 13 , and the electrical chamber 14 is electrically connected to the magnetron assembly 13 .

[0058] As part of an embodiment of the utility model, a microwave oven is also provided. The microwave oven includes a body 1 and a door assembly 2. The door assembly 2 is arranged at the front end of the body 1. The filter assembly structure is arranged on the body 1.

[0059] Although the utility model is disclosed as above, the utility model 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 utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A filter assembly structure, arranged on a microwave oven, the filter assembly structure comprising a cavity (10) and a front cover (11), the front cover (11) being arranged at the front end of the cavity (10), characterized in that: A filter assembly (12) is arranged near the top of the front cover (11), and an air guide cover (17) is arranged on the outside of the top of the cavity (10) near the front cover (11); the air guide cover (17) covers the rear side of the filter assembly (12); hot air discharged from the interior of the cavity (10) enters the air guide cover (17) through the air outlet (151) on the cavity (10), and is then discharged to the outside through the filter assembly (12); the filter assembly (12) and the air guide cover (17) are detachably connected.

2. The filter assembly structure according to claim 1, characterized in that: A front cover plate (11) is arranged at the front opening of the cavity (10), a top cover (15) is arranged at the top of the cavity (10), the front cover plate (11) and the top cover (15) are arranged vertically, an air outlet (151) is arranged on the top cover (15) near the front cover plate (11), and a filter assembly (12) is arranged near the top of the front cover plate (11).

3. The filter assembly structure according to claim 1, characterized in that: Connecting pins (123) are provided at both ends of the filter assembly (12), and elastic connecting sleeves (171) are provided at both ends of the air guide cover (17). The connecting pin (123) and the filter assembly (12) are preassembled together, and the elastic connecting sleeve (171) and the air guide cover (17) are preassembled together. The connecting pin (123) is inserted into the front cover plate (11) and the elastic connecting sleeve (171).

4. The filter assembly structure according to claim 3, characterized in that: A mounting hole (111) is provided at a position close to the top of the front cover plate (11), fixing ears (113) are provided at the left and right ends of the mounting hole (111), the fixing ears (113) extend in a direction close to the center of the mounting hole (111), and limiting edges (112) are provided at the upper and lower edges of the mounting hole (111), the limiting edges (112) bend and extend in a direction close to the center of the mounting hole (111), and the limiting edges (112) and the fixing ears (113) fix and limit the filter assembly.

5. The filter assembly structure according to any one of claims 1 to 4, characterized in that: The filter screen assembly (12) comprises a filter screen (122) and an oil absorption layer (121); the filter screen (122) is configured as a porous structure; flanges (1221) are provided around the filter screen (122); the flanges (1221) protrude and extend rearward.

6. The filter assembly structure according to claim 1, characterized in that: Connecting feet (176) are provided at both ends of the lower part of the air guide cover (17), and connecting holes are provided on the connecting feet (176). The air guide cover (17) is connected to the top cover (15) of the cavity (10) via the connecting feet (176).

7. The filter assembly structure according to claim 1 or 6, characterized in that: The air guide cover (17) is arranged as an inclined structure, the lower end of the air guide cover (17) is located at the rear side of the air outlet (151), the top end of the air guide cover (17) is in contact with the front cover plate (11), and the air guide cover (17) as a whole forms a structure inclined forward from bottom to top.

8. The filter assembly structure according to claim 3, characterized in that: The elastic connecting sleeve (171) comprises a first fixing portion (175), a first connecting portion (173) and an anti-slip portion (174) which are arranged in sequence from front to back; the first fixing portion (175), the first connecting portion (173) and the anti-slip portion (174) are arranged integrally; the outer diameter of the first fixing portion (175) is greater than the outer diameter of the first connecting portion (173); and the outer diameter of the anti-slip portion (174) at one end close to the first connecting portion (173) is greater than the outer diameter of the first connecting portion (173).

9. The filter assembly structure according to claim 3 or 8, characterized in that: The elastic connecting sleeve (171) is configured as a hollow structure, the connecting pin (123) is inserted into the hollow structure of the elastic connecting sleeve (171), the connecting pin (123) comprises a handle portion (1231), a second connecting portion (1232) and a second fixing portion (1233) which are sequentially arranged from front to back, the outer diameter of the handle portion (1231) being greater than the outer diameter of the second connecting portion (1232), and the outer diameter of the second connecting portion (1232) being greater than the outer diameter of the second fixing portion (1233).

10. A vehicle-mounted microwave oven, characterized in that: The microwave oven comprises a body (1) and a door assembly (2), wherein the door assembly (2) is arranged at the front end of the body (1), and further comprises a filter assembly structure according to any one of claims 1 to 9, wherein the filter assembly structure is arranged on the body (1).

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