Vehicle-mounted microwave oven system

Abstract

The invention provides a vehicle-mounted microwave oven system. The vehicle-mounted microwave oven system comprises a vehicle head cabinet; the microwave oven is mounted in the headstock cabinet, gaps are formed between the left and right sides of the microwave oven and the left and right inner sides of the headstock cabinet, a gap is also formed between the rear side of the microwave oven and the rear wall of the headstock cabinet, and the microwave oven comprises a shell and side plates; the heating cavity is located in the shell and used for containing food to be heated; the door assembly is located on the front side of the shell and used for sealing or opening the heating cavity; the electric cavity is located on one side of the heating cavity and comprises a magnetron assembly and a frequency conversion plate assembly, the frequency conversion plate assembly is arranged on the outer side of the magnetron assembly, and the frequency conversion plate assembly and the magnetron assembly are separated through a side plate. The gaps are formed in the left side, the right side and the top of the microwave oven, the air inlet area of inlet air in the headstock cabinet is increased, inlet air surrounds the periphery of the microwave oven, heat generated by the microwave oven is effectively prevented from being conducted to the headstock cabinet and even the whole vehicle body, and meanwhile the good heat dissipation effect on electrical components in the microwave oven can be achieved. The magnetron assembly and the frequency conversion plate assembly are arranged separately to avoid mutual influence of heat dissipation air channels of the magnetron assembly and the frequency conversion plate assembly and ensure normal, stable and efficient work of the microwave oven.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted equipment, and in particular to a vehicle-mounted microwave oven system. Background Art

[0002] As infrastructure projects are advanced, the number of heavy trucks, as an important tool in the transportation industry, continues to grow steadily; and with the continued popularity of the tourism market, the number of RVs has exploded. Microwave ovens are common household appliances that can heat food with microwaves. The entire process does not involve open flames or gas. They are safe and reliable and can significantly improve the quality of life of drivers, making them popular.

[0003] The top of the existing RV or truck cockpit is equipped with a headboard cabinet, and the microwave oven is installed in the headboard cabinet. However, installing the microwave oven in a compact fixed cabinet affects the volume of the microwave oven, the layout of the internal components, and the normal heat dissipation of the electrical components to a certain extent. Therefore, how to reasonably arrange the internal components of the microwave oven without affecting the normal heat dissipation of the electrical components and ensuring the normal and efficient operation of the microwave oven is crucial to the structural design of the vehicle-mounted microwave oven system. Summary of the invention

[0004] The present invention aims to provide a vehicle-mounted microwave oven system to solve the problem in the prior art that the internal components of the vehicle-mounted microwave oven are arranged irrationally, which affects the heat dissipation and the normal use of the microwave oven.

[0005] To solve the above problems, the present invention provides a vehicle-mounted microwave oven system, comprising: a vehicle front cabinet; a microwave oven installed inside the vehicle front cabinet, a gap is formed between the left and right sides of the microwave oven and the left and right inner sides of the vehicle front cabinet, and a gap is also formed between the rear side of the microwave oven and the rear wall of the vehicle front cabinet, the microwave oven comprises an outer shell, including side panels; a heating cavity, the heating cavity is located inside the outer shell and is used to hold food to be heated; a door assembly is located at the front side of the outer shell and is used to seal or open the heating cavity; an electrical cavity is located at one side of the heating cavity, the electrical cavity comprises a magnetron assembly and a frequency conversion board assembly, the frequency conversion board assembly is arranged on the outside of the magnetron assembly, and the frequency conversion board assembly is separated from the magnetron assembly by the side panels.

[0006] Furthermore, the gaps on both sides of the interior of the vehicle head cabinet form an air inlet end, and the air inlet end and the rear side of the electrical cavity form an air inlet duct.

[0007] Furthermore, a first air outlet is arranged at the front side of the electrical cavity, and a first air inlet is arranged at the rear side of the electrical cavity, and a first air duct is formed between the first air outlet and the first air inlet.

[0008] Furthermore, a second air inlet hole connected to the first air duct is provided on a side of the heating chamber close to the electrical chamber, a heat dissipation hole is provided on the top of the heating chamber, an air guide cover is provided on the heat dissipation hole, a filter assembly is provided at the outlet end of the air guide cover, and a second air duct is formed between the filter assembly and the second air inlet hole.

[0009] Furthermore, a third air duct is formed between the front and rear sides of the frequency conversion board assembly.

[0010] Furthermore, the frequency conversion board assembly includes a shell and a frequency conversion board, the frequency conversion board is installed inside the shell, the shell is fixed to the outer side of the side panel of the outer shell, the frequency conversion board assembly is separated from the magnetron assembly by the side panel, and a second fan is arranged on the rear side of the shell, and the second fan is used to dissipate heat for the frequency conversion board assembly inside the shell.

[0011] Furthermore, the position near the rear side of the shell is set as a flared structure, and the position near the front of the shell is set as a breathable structure. Air circulates on the front and back sides of the shell, and the second fan guides the incoming air to pass through the frequency conversion board assembly and then be discharged through the breathable structure.

[0012] Furthermore, the outer shell includes a top plate, a first side plate, a second side plate, a bottom plate and a front cover plate, the first side plate and the second side plate are respectively located on both sides of the top plate and the bottom plate, the magnetron assembly is arranged on the inner side of the second side plate, the frequency conversion board assembly is arranged on the outer side of the second side plate, and a second air outlet is arranged at a position near both ends of the top of the front cover plate, and the second air outlet is connected to the electrical cavity.

[0013] Furthermore, a first fan is arranged at the rear side of the magnetron assembly, and the first fan dissipates heat for the magnetron assembly.

[0014] Furthermore, a connecting portion is provided inside the vehicle front cabinet, an upper bracket is provided on the microwave oven, the top of the microwave oven is connected to the vehicle front cabinet through the upper bracket and the connecting portion, a bottom bracket is provided at the bottom of the microwave oven, the bottom bracket is connected to the bottom of the vehicle front cabinet, the upper bracket is close to the front side of the microwave oven, the upper bracket includes a first bracket and a second bracket, the first bracket and the second bracket are respectively located at positions close to both sides of the top of the microwave oven and the first bracket and the second bracket are mirror-imaged, a front cover plate is provided on the front side of the microwave oven, and the first bracket and the second bracket are both connected to the front cover plate.

[0015] Compared with the prior art, the vehicle-mounted microwave oven system of the present invention has the following beneficial effects: gaps are set on the left and right sides and the top of the microwave oven to increase the air intake area inside the vehicle head cabinet, so that the intake air surrounds the periphery of the microwave oven, effectively preventing the heat generated by the microwave oven from being conducted to the vehicle head cabinet or even the entire vehicle body, and at the same time, it can play a good heat dissipation role for the electrical components inside the microwave oven.

[0016] The magnetron assembly and the frequency converter assembly are separated to make the layout of the electrical components reasonable and avoid EMC interference between the magnetron assembly and the frequency converter assembly. Fans are set at the corresponding positions of the magnetron assembly and the frequency converter assembly to play a good heat dissipation role for the two, avoid the mutual influence of the two heat dissipation air ducts, and ensure the normal, stable and efficient operation of the microwave oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an overall schematic diagram of a vehicle-mounted microwave oven system according to an embodiment of the present invention;

[0018] Figure 2 An exploded diagram of a vehicle-mounted microwave oven system according to an embodiment of the present invention;

[0019] Figure 3 An exploded view of the vehicle-mounted microwave oven system according to an embodiment of the present invention from another perspective;

[0020] Figure 4 Schematic diagram of a microwave oven (door assembly omitted) according to an embodiment of the present invention;

[0021] Figure 5 It is a schematic diagram of another viewing angle of the microwave oven (door assembly omitted) according to an embodiment of the present invention;

[0022] Figure 6 It is a schematic diagram of a microwave oven (door assembly omitted) according to an embodiment of the present invention from a third viewing angle;

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

[0024] Figure 7 This is a schematic diagram of the explosion of the microwave oven of the present invention (door assembly omitted) after the first side panel is opened;

[0025] Figure 7a for Figure 7 A partial enlarged view of the middle A area;

[0026] Figure 7b for Figure 7 A partial enlarged view of the B area;

[0027] Figure 8 This is a schematic diagram of the explosion of the microwave oven of the present invention (door assembly omitted) after the top plate is opened;

[0028] Fig. 9 It is a schematic diagram of the structure of the bottom bracket according to an embodiment of the present invention;

[0029] Fig.10 This is a schematic diagram of the first bracket according to an embodiment of the present invention;

[0030] Fig.11 This is a schematic diagram of the air duct of the vehicle-mounted microwave oven system according to an embodiment of the present invention;

[0031] Fig.12 for Fig.11 Schematic diagram of the cross section along the AA plane;

[0032] Fig.13 It is a top view of the vehicle-mounted microwave oven system (with the top cover of the vehicle cabinet omitted) according to an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 100-microwave oven, 101-electric control module, 1-housing; 11-top plate; 111-first flat plate; 112-avoidance portion; 1121-first vertical plate; 1122-second flat plate; 1123-first inclined plate; 1124-second inclined plate; 12-first side plate; 13-second side plate; 14-bottom plate; 141-stove foot; 142-first raised portion; 143-bending portion; 144-avoidance groove; 2-door assembly; 3-filter assembly; 41-first bracket; 411-stop bar, 412-first connecting position, 413-second connecting position, 414-first notch, 42-second bracket; 43-bottom bracket; 431-guide groove; 432-second notch; 433-limiting member; 434-recess; 435-folding edge; 44-front bracket; 441-connecting ear; 4 42-connecting plate, 443-supporting plate, 5-front cover plate; 51-first air outlet; 52-second air outlet; 53-upper flange; 54-first air outlet; 6-heating chamber; 61-cavity rear plate; 611-first air inlet; 62-top cover plate; 64-cavity side; 641-second air inlet; 71-first fan; 72-second fan; 8-electrical chamber; 81-magnetron assembly; 82-frequency conversion board assembly; 83-waveguide box; 86-filter board; 87-filter bracket; 88-air guide cover; 9-first air duct; 10-second air duct; 102-intake air duct; 103-third air duct; 200-head cabinet, 201-top cover, 202-bottom platform, 203-left side plate, 204-right side plate, 2011-connecting part, 2011a-vertical plate, 2011b-horizontal plate DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention 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.

[0036] 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.

[0037] like Figure 1-13 As shown, a vehicle-mounted microwave oven system includes a microwave oven 100 and a front cabinet 200, wherein the microwave oven 100 is installed inside the front cabinet 200, an upper bracket is arranged on the top of the microwave oven 100, a connecting portion 2011 is arranged on the top of the front cabinet 200, the top of the microwave oven 100 is connected to the front cabinet 200 through the upper bracket and the connecting portion 2011, a bottom bracket 43 is arranged at the bottom of the microwave oven 100, and the bottom bracket 43 is connected to the bottom of the front cabinet 200, thereby fixing the upper and lower parts of the microwave oven, balancing and fixing the microwave oven, ensuring that the microwave oven is firmly connected to the front cabinet, and preventing the microwave oven from loosening. At the same time, the left and right sides of the microwave oven 100 form gaps with the left and right inner sides of the front cabinet 200, and a gap is also formed between the rear side of the microwave oven 100 and the rear wall of the front cabinet, so as to facilitate normal air intake and heat dissipation of the microwave oven. Preferably, a gap is also arranged between the top of the microwave oven 100 and the front cabinet 200 to increase the air intake area for air intake into the interior of the front cabinet.

[0038] Furthermore, in order to further increase the connection stability between the microwave oven and the front cabinet, two upper brackets are provided, and are respectively located at the top of the microwave oven 100 near both sides, and the upper bracket is close to the front side of the microwave oven; the bottom bracket 43 is provided at the bottom of the microwave oven 100 near the rear side, and a front bracket 44 is also provided at the bottom of the microwave oven 100 near the front side, so that when viewed from the side of the microwave oven, the connection line of the upper bracket, the front bracket and the bottom bracket forms a triangular structure, thereby increasing the fixing stability of the microwave oven. Preferably, two front brackets 44 are also provided, and are respectively located near the left and right sides of the microwave oven.

[0039] The microwave oven comprises a housing 1, a door assembly 2, a heating cavity 6 and an electrical cavity 8. The heating cavity 6 is located inside the housing 1 and is used to hold food to be heated. The door assembly 2 is located at the front side of the housing 1 and is used to seal or open the heating cavity 6. The door assembly 2 is hinged to the housing 1. The electrical cavity 8 is located at one side of the heating cavity 6 and is at least used to provide microwaves into the heating cavity. An electric control module 101 is also provided at the front side of the outer side 1. The electric control module 101 is flush with the door assembly 2 and is provided at one side of the door assembly 2.

[0040] The housing 1 includes a top plate 11, a first side plate 12, a second side plate 13 and a bottom plate 14, wherein the first side plate 12 and the second side plate 13 are respectively located on both sides of the top plate 11 and the bottom plate 14. The top plate 11 includes a first flat plate 111, and a relief portion 112 is arranged at the rear side of the first flat plate 111, and the relief portion 112 is generally arc-shaped or stepped. This arrangement enables the vehicle-mounted microwave oven to adapt to the shape of the vehicle head cabinet, and the space utilization rate inside the vehicle head cabinet is high. Preferably, the avoidance portion 112 includes a first vertical plate 1121 and a second flat plate 1122 connected to each other, the second flat plate 1122 is arranged lower than the first flat plate 111, the second flat plate 1122 is provided with a downwardly inclined first inclined plate 1123 at one end away from the first vertical plate 1121, the first inclined plate 1123 is provided with a second inclined plate 1124 at one end close to the fan assembly, and the inclination angles of the first inclined plate 1123 and the second inclined plate 1124 are α1 and α2 respectively, wherein 0<α1<α2<90° is arranged. This arrangement allows the power cord to pass through the first vertical plate 1121 that is first assembled to connect with the filter plate 86, which facilitates the disassembly, assembly and maintenance of the vehicle-mounted microwave oven.

[0041] The outer shell 1 also includes a front cover plate 5, which is located in front of the top plate 11, the first side plate 12, the second side plate 13 and the bottom plate 14. The door assembly 2 is connected to the front cover plate 5. The upper edge of the front cover plate 5 exceeds the plane where the top plate 11 is located, the side edge of the front cover plate 5 exceeds the plane where the first side plate 12 and the second side plate 13 are located, and the lower edge of the front cover plate 5 exceeds the plane where the bottom plate 14 is located.

[0042] The housing 1 further comprises a bottom plate 14, a heating cavity 6 is arranged on the upper part of the bottom plate 14, a part of the bottom plate 14 protrudes on one side away from the heating cavity 6 to form a first protrusion 142, the first protrusion 142 protrudes downward, and the first protrusion 142 is used to avoid the driving structure of the microwave oven. A furnace foot 141 is also arranged on the bottom plate 14, which is used to be detachably connected to the bottom bracket 43. This arrangement can not only increase the mechanical strength of the bottom plate 14, but also make the furnace foot 141 have a certain height to ensure that it is connected and fastened to the bottom plate 14, and the height of the furnace foot 141 protruding from the bottom plate 14 is very limited, and the space utilization rate is high.

[0043] A shunting groove 144 is also provided on the front side of the bottom plate 14. The shunting groove 144 is located between the front part of the first raised part 142 of the bottom plate and the front edge of the bottom plate 14. A front bracket 44 is provided in the shunting groove 144. The front bracket 44 protrudes downward and extends, so that the lower part of the front bracket 44 is nearly flush with the lower edge of the front cover 5, so that the bottom of the microwave oven can be basically flat after being fixed inside the head cabinet, and the microwave oven is prevented from tilting in the horizontal direction. The front edge of the bottom plate 14 is folded downward to form a bending part 143, and the bending part 143 and the front part of the first raised part 142 define the shunting groove 144.

[0044] A waveguide box 83 is arranged at the top of the heating chamber 6, one end of the waveguide box 83 extends into the electrical chamber 8, a magnetron assembly 81 is arranged in the electrical chamber 8, the magnetron assembly 81 is arranged outside the heating chamber 6 and located on the right side of the heating chamber 6, and the top of the magnetron assembly 81 is connected to the waveguide box 83. The side of the magnetron assembly 81 is connected to the second side plate 13 and / or the side of the heating chamber 6, and the first fan 71 is arranged at a position corresponding to the magnetron assembly 81 on the rear plate of the heating chamber 6. The magnetron assembly 81 includes a magnetron and a magnetron bracket, and the magnetron is connected to the housing 1 through the magnetron bracket.

[0045] Specifically, a magnetron bracket is provided on a side of the magnetron close to the second side plate 13, and the magnetron bracket is fixedly connected to the second side plate 13. This arrangement has a simple structure and can further improve the assembly stability and reliability of the magnetron, meeting the service life in a vehicle-mounted environment.

[0046] As one embodiment of the present invention, the frequency conversion board assembly 82 can also be arranged at the lower part of the magnetron assembly 81, that is, the magnetron assembly 81 and the frequency conversion board assembly 82 are distributed up and down; the frequency conversion board assembly 82 can also be arranged on the outside of the magnetron assembly 81, that is, the two are horizontally or horizontally staggered, and a partition can be selectively arranged between the magnetron assembly 81 and the frequency conversion board assembly 82, so that the frequency conversion board assembly 82 can be fixed on the bottom plate 14 or the second side plate 13. Preferably, the magnetron assembly 81 is arranged on the inner side of the second side plate 13, and the frequency conversion board assembly 82 is arranged on the outer side of the second side plate 13. The magnetron assembly and the frequency conversion board assembly are separated, so that the layout of the electrical components is reasonable, the EMC interference between the magnetron assembly and the frequency conversion board assembly is avoided, and the normal, stable and efficient operation of the microwave oven is ensured.

[0047] Correspondingly, a fan assembly is arranged on the cavity rear plate 61 on the rear side of the electrical cavity 8, and the fan assembly includes a first fan 71 and a second fan 72. The first fan 71 is correspondingly arranged on the rear side of the magnetron assembly 81, and the second fan 72 is correspondingly arranged on the rear side of the frequency conversion board assembly 82, and is used to drive the airflow to dissipate heat for the magnetron assembly and the frequency conversion board assembly respectively.

[0048] As a preferred embodiment of the present invention, the frequency conversion board assembly 82 is arranged outside the shell 1 of the microwave oven 100, the frequency conversion board assembly 82 is separated from the magnetron assembly 81 by the second side plate 13, and the frequency conversion board assembly 82 is fixedly connected to the second side plate 13, that is, the magnetron assembly 81 is arranged on the inner side of the second side plate 13, and the frequency conversion board assembly 82 is arranged on the outer side of the second side plate 13. Preferably, the frequency conversion board assembly 82 includes a shell and a frequency conversion board, the frequency conversion board is installed inside the shell, and the shell is fixed to the outer side of the second side plate 13. Correspondingly, a second fan 72 is arranged on the rear side of the shell, and the second fan 72 is used to dissipate heat for the frequency conversion board assembly 82 inside the shell. More preferably, the position near the rear side of the shell is set to a flaring structure with an opening gradually increasing from front to rear, so as to adapt to the shape of the second fan 72, while increasing the air inlet area and improving the heat dissipation effect.

[0049] The magnetron assembly 81 is fixedly connected to the waveguide box 83 . A filter plate 86 is disposed on the top of the heating cavity 6 . The filter plate 86 is located on a side of the heating cavity 6 away from the electrical cavity 8 .

[0050] This arrangement can make full use of the internal space of the vehicle-mounted microwave oven, while preventing the filter board 86 from causing EMC signal interference to the frequency conversion board 82. No other electronic components are arranged between the fan assembly and the frequency conversion board 82, ensuring that the vehicle-mounted microwave oven meets the temperature rise requirements under extreme high temperature conditions in summer, making it possible to further reduce the size of the vehicle-mounted microwave oven. As part of an embodiment of the present invention, when the frequency conversion board assembly and the magnetron assembly are arranged in an upper and lower distribution, a frequency conversion board bracket is arranged at the bottom of the electrical cavity 8 for fixing and assembling the frequency conversion board assembly 82.

[0051] Further, the upper bracket of the microwave oven includes a first bracket 41 and a second bracket 42, which are arranged in a mirror image. The structure of the first bracket 41 is taken as an example. The first bracket 41 includes a baffle 411, a first connection position 412 and a second connection position 413, wherein the first connection position 412 and the second connection position 413 are arranged at the top of the baffle 411, and the baffle 411 is arranged as a vertical bar structure, the baffle 411 is perpendicular to the front cover 5, and the first connection position 412 is arranged at the top of the baffle 411, and the first connection position 412 is perpendicular to the baffle 411. Correspondingly, an upper flange 53 is arranged at the top of the front cover 5, and the upper flange 53 extends backward, the first connection position 412 is parallel to the upper part of the upper flange 53, and the first connection position 412 covers a part of the upper flange 53, and screws or other connecting members pass through the first connection position 412 and the upper flange 53 of the front cover 5 to fix the upper bracket on the microwave oven, so as to realize the fixed connection between the upper bracket and the microwave oven.

[0052] Furthermore, a second connection position 413 is also provided on the first connection position 412. The second connection position 413 is perpendicular to the first connection position 412 and connected to the rear edge of the first connection position 412, protruding upward and extending. The second connection position 413 is parallel to the front cover plate 5. Screws or other connecting parts pass through the second connection position 413 and the connecting portion 2011 on the front cabinet to fix the upper bracket to the front cabinet, thereby achieving the connection and fixation of the microwave oven to the front cabinet through the upper bracket. A first notch 414 is also provided at the connection transition portion between the stop bar 411 and the first connection position 412. The upper bracket abuts against the top of the front cover plate 5 near the end through the first notch 414, which plays a role in limiting and guiding the installation of the upper bracket.

[0053] As part of the embodiment of the present invention, the bottom bracket 43 is partially recessed downward to form a guide groove 431, a second notch 432 is provided at the end of the guide groove 431, a stopper 433 is provided on the side of the second notch 432 close to the furnace foot 141, the projection of the stopper 433 on the horizontal plane is semicircular, and the stopper 433 includes a contraction part and an extension part, which is used to limit and fix the furnace foot 141. During assembly, the furnace foot 141 slides forward along the guide groove 431 to the second notch 432, and is limited and fixed by the stopper 433 in the front side, left rear, and up and down directions.

[0054] Preferably, the bottom bracket 43 also includes a lower concave portion 434, in which a connection hole is provided, and the lowest point of the connection hole is in the same plane as the guide groove 431, for fixing and assembling with the front cabinet. This arrangement can increase the contact points between the bottom bracket 43 and the front cabinet, and the overall force is uniform and reliable, which can meet the installation requirements of the vehicle scene; at the same time, the bottom bracket 43 has a certain deformation space, and even if some bolts are loose, it can fit closely with the front cabinet to avoid abnormal noise.

[0055] Preferably, there are multiple lower concave portions 434 and they are symmetrically distributed on the left and right sides of the guide groove 431. This arrangement makes the force on both sides of the bottom bracket 43 uniform and prolongs the service life. Preferably, folding edges 435 are provided on both sides of the bottom bracket 43, and the folding edges 435 extend upward. This arrangement makes the two sides of the bottom bracket 43 have a certain height to facilitate gripping, and further increases its structural strength.

[0056] As part of the embodiment of the present invention, the front bracket 44 is configured as an inverted "J"-shaped structure. The front bracket 44 includes a connecting ear 441, a connecting plate 442 and a supporting plate 443, wherein two connecting ears 441 are provided, and the connecting ears 441 are arranged to fit the avoidance groove 144, and the two connecting ears 411 are connected to a connecting plate 442 at a position close to each other, and the connecting plate 442 is perpendicular to the connecting ear 441 and extends downward; the ends of the two connecting plates 442 are connected by a supporting plate 443, and the supporting plate 443 is parallel to the bottom plate 14, and screws or other connecting parts pass through the supporting plate 443 and are connected to the front cabinet 200.

[0057] Furthermore, the front cabinet 200 includes a top cover 201, a bottom platform 202, a left side plate 203 and a right side plate 204. The top cover 201, the bottom platform 202, the left side plate 203 and the right side plate 204 form a receiving cavity with a front opening, and the microwave oven is installed in the receiving cavity. Screw holes are provided on the top cover 201 and the bottom platform 202, and the tops of the first bracket 41 and the second bracket 42 are connected to the top cover 201 of the front cabinet 200. The bottom bracket 43 and the front bracket 44 are connected to the bottom platform 202 of the front cabinet 200.

[0058] Specifically, a connecting portion 2011 is provided on the top cover 201 of the front cabinet 200. The connecting portion 2011 is configured as a long strip structure. The positions of the connecting portion 2011 near both ends are respectively connected to the first bracket 41 and the second bracket 42. The connecting portion 2011 includes a vertical plate 2011a and a horizontal plate 2011b, wherein the vertical plate 2011a and the horizontal plate 2011b are perpendicular to each other and form a vertical corner structure. The horizontal plate 2011b is attached to the lower surface of the top cover 201, so that the vertical plate 2011a is parallel to the second connecting position 413 of the upper bracket. The screw passes through the second connecting position 413 and the vertical plate 2011a to achieve a stable connection between the upper part of the microwave oven and the front cabinet.

[0059] Preferably, the connection portion 2011 may also be integrally provided with the top cover 201 of the vehicle headrest, or the horizontal plate 2011 b may be omitted, and the vertical plate 2011 a may be directly provided on the lower surface of the top cover 201 .

[0060] The lower side of the top cover plate 62 is bonded and fixed with a wave-transmitting plate (not shown in the figure), and a filter bracket 87 and a filter plate 86 are sequentially arranged above the top cover plate 62. The wave-transmitting plate is connected to the top cover plate 62 by fasteners, and is connected to the filter bracket 87 by a snap-on connection. By arranging the filter bracket 87 and the wave-transmitting plate on the upper and lower sides of the top cover plate 62 and performing specific connection and fixing, on the one hand, the relevant parts in the vehicle-mounted microwave oven are arranged more compactly, improving the space utilization rate of the vehicle-mounted microwave oven itself, and on the other hand, it is conducive to improving the connection strength of the relevant parts to avoid the separation or falling of the parts due to the bumps or vibrations of the vehicle.

[0061] As part of the embodiment of the present invention, filter brackets 87 are provided on both sides of the top cover plate 62. This arrangement enables any filter bracket 87 to be provided with a filter plate 86, thereby improving the compatibility of related parts during the production and assembly process, so that one part can meet the assembly requirements of different models.

[0062] like Figures 11 to 13 As shown, as part of an embodiment of the present invention, a heat dissipation system for a vehicle-mounted microwave oven is also provided, specifically comprising:

[0063] The air enters the interior of the vehicle head cabinet through the two sides of the vehicle head cabinet 200, that is, the gaps on both sides of the interior of the vehicle head cabinet form an air inlet end, and the air inlet end and the rear side of the electrical cavity 8 form an air inlet duct 102. Specifically, the air inlet duct 102 ( Fig.11 and 13 This arrangement makes the distance between the air inlet end and the first air inlet hole 611 the farthest, and the air inlet duct 102 surrounds the periphery of the microwave oven 100, effectively preventing the heat generated by the microwave oven 100 from being conducted to the vehicle head cabinet 200 or even the entire vehicle body.

[0064] A first air outlet 54 is disposed at a position corresponding to the electric control module 101 on the front side of the electrical cavity 8, and a first air inlet 611 is disposed on the rear side of the electrical cavity 8. A first air duct 9 is formed between the first air outlet 54 and the first air inlet 611. Fig.11 and 13 The first fan 71 is preferably disposed in the first air duct 9. The first fan 71 can be disposed on the inner side or the outer side of the first air inlet hole 611 to guide the incoming air into the first air duct 9 and blow air into the electrical cavity 8. The heating cavity 6 is provided with a second air inlet hole 641 connected with the first air duct 9 on the cavity side 64 close to the electrical cavity 8. A heat dissipation hole (not shown in the figure, covered by an air guide cover) is disposed on the top of the heating cavity 6. An air guide cover 88 is disposed on the heat dissipation hole. A filter assembly 3 is disposed at the outlet end of the air guide cover 88. The filter assembly 3 is installed at the first air outlet 51 of the front cover plate 5. A second air duct 10 ( Fig.11 and 13 The blue arrow in the middle of the microwave oven indicates that the wind that enters the electrical cavity partially enters the heating cavity 6 to dissipate heat inside the heating cavity, and then is discharged to the outside of the microwave oven through the heat dissipation holes and the filter assembly. The filter assembly can filter the moisture, oil droplets, etc. generated in the heating cavity 6 to ensure that the air in the cockpit will not be polluted when heating food. The specific structure of the filter assembly is prior art and will not be described in detail here.

[0065] A second air outlet 52 is provided at the top of the front cover plate 5 near both ends. The second air outlet 52 is located at both ends of the first air outlet 51. The second air outlet 52 is connected to the electrical cavity and is used to discharge the heat dissipation hot air in the electrical cavity to ensure good heat dissipation in the electrical cavity 8. Specifically, the second air outlet 52 on the left side corresponds to the filter plate 86 and is used to discharge the hot air after heat exchange with the filter plate 86; the second air outlet 52 on the right side corresponds to the magnetron assembly 81 and is used to discharge part of the hot air after heat exchange with the magnetron assembly, and the second air outlet 52 on the right side cooperates with the first air outlet 54 at the bottom to improve the heat dissipation performance of the magnetron assembly.

[0066] This arrangement can utilize the first fan 71 to transport external air to the first air duct 9 and take away the heat in the electrical cavity 8, and at the same time utilize the second air duct 10 to collect the oil droplets generated by heating food using the filter assembly 3, thereby preventing the heat in the second air duct 10 from entering the electrical cavity 8 from the shell and affecting the heat dissipation and normal use of the electrical components; the heat dissipation effect is good and the oil droplets generated during the actual heating process are collected to the maximum extent to prevent them from entering the relatively closed space of the cockpit.

[0067] For the frequency conversion board assembly 82, the housing of the frequency conversion board assembly 82 is provided with a ventilation structure near the front, and the second fan 72 is provided at the rear side, so that the air flows through the front and rear sides of the housing, so that the air intake guided by the second fan 72 passes through the frequency conversion board assembly 82 and dissipates the heat of the frequency conversion board assembly, and then is discharged through the ventilation structure, forming a third air duct 103 ( Fig.11 and 13 Preferably, the air permeable structure is configured as an air permeable net, which can prevent large particles of pollutants in the compartment from entering the housing of the frequency conversion board assembly while dissipating heat, thereby protecting the frequency conversion board assembly.

[0068] The ratio of the air inlet and air outlet area of ​​the electrical cavity 8 is 1.5-3:1, the ratio of the air inlet and air outlet area of ​​the heating cavity 6 is 1.1-1.5:1, and the ratio of the air outlet area of ​​the electrical cavity to the air inlet area of ​​the heating cavity is 1.5-3:1. Preferably, the ratio of the air inlet and air outlet area of ​​the electrical cavity 8 is 1.7-2.4:1, the ratio of the air inlet and air outlet area of ​​the heating cavity 6 is 1.2-1.4:1, and the ratio of the air outlet area of ​​the electrical cavity 8 to the air inlet area of ​​the heating cavity 6 is 2.2-2.5:1. The air inlet area and air outlet area of ​​the heating cavity 6 are 1310mm2 and 972.4mm2 respectively, and the air inlet area and air outlet area of ​​the electrical cavity 8 are 6004.5mm2 and 3164.7mm2 respectively. The air inlet cover of the electrical cavity is also the total air inlet area of ​​the vehicle-mounted microwave oven. This arrangement maintains positive pressure in both the electrical cavity 8 and the heating cavity 6, ensuring good heat dissipation and anti-condensation effects of the vehicle-mounted microwave oven as a whole.

[0069] Although the present invention is disclosed as above, the present invention 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 invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A vehicle-mounted microwave oven system, characterized in that: include: Headstock (200); A microwave oven (100) is installed inside the vehicle head cabinet (200), and a gap is formed between the left and right sides of the microwave oven (100) and the left and right inner sides of the vehicle head cabinet (200), and a gap is also formed between the rear side of the microwave oven (100) and the rear wall of the vehicle head cabinet (200). The microwave oven (100) comprises: A housing (1) including side panels; A heating chamber (6), the heating chamber (6) being located inside the housing (1) and being used for containing food to be heated; A door assembly (2) located on the front side of the housing (1) and used for sealing or opening the heating chamber (6); The electrical chamber (8) is located on one side of the heating chamber (6). The electrical chamber (8) comprises a magnetron assembly (81) and a frequency conversion board assembly (82). The frequency conversion board assembly (82) is arranged on the outside of the magnetron assembly (81). The frequency conversion board assembly (82) and the magnetron assembly (81) are separated by a side plate.

2. The vehicle-mounted microwave oven system according to claim 1, characterized in that: Gaps on both sides of the interior of the vehicle head cabinet (200) form an air inlet end, and the air inlet end and the rear side of the electrical cavity (8) form an air inlet duct (102).

3. The vehicle-mounted microwave oven system according to claim 1, characterized in that: A first air outlet (54) is arranged on the front side of the electrical cavity (8), and a first air inlet (611) is arranged on the rear side of the electrical cavity (8), and a first air duct (9) is formed between the first air outlet (54) and the first air inlet (611).

4. The vehicle-mounted microwave oven system according to claim 3, characterized in that: The heating chamber (6) is provided with a second air inlet hole (641) connected to the first air duct (9) on a side close to the electrical chamber (8), a heat dissipation hole is provided on the top of the heating chamber (6), an air guide cover (88) is provided on the heat dissipation hole, a filter assembly (3) is provided at the outlet end of the air guide cover (88), and a second air duct (10) is formed between the filter assembly (3) and the second air inlet hole (641).

5. The vehicle-mounted microwave oven system according to claim 1, characterized in that: A third air duct (103) is formed between the front and rear sides of the frequency conversion board assembly (82).

6. The vehicle-mounted microwave oven system according to claim 1, characterized in that: The frequency conversion board assembly (82) comprises a shell and a frequency conversion board, wherein the frequency conversion board is installed inside the shell, and the shell is fixed to the outer side of the side plate of the outer shell, and the frequency conversion board assembly (82) is separated from the magnetron assembly (81) by the side plate. A second fan (72) is arranged on the rear side of the shell, and the second fan (72) is used to dissipate heat for the frequency conversion board assembly (82) inside the shell.

7. The vehicle-mounted microwave oven system according to claim 6, characterized in that: The position near the rear side of the shell is configured as a flared structure, and the position near the front side of the shell is configured as a breathable structure. Air circulates on both the front and rear sides of the shell, and the second fan (72) guides the incoming air to pass through the frequency conversion board assembly (82) and then be discharged through the breathable structure.

8. The vehicle-mounted microwave oven system according to claim 1, characterized in that: The housing (1) comprises a top plate (11), a first side plate (12), a second side plate (13), a bottom plate (14) and a front cover plate (5); the first side plate (12) and the second side plate (13) are respectively located on both sides of the top plate (11) and the bottom plate (14); the magnetron assembly (81) is arranged on the inner side of the second side plate (13); the frequency conversion board assembly (82) is arranged on the outer side of the second side plate (13); a second air outlet (52) is arranged at a position near both ends of the top of the front cover plate (5); and the second air outlet (52) is connected to the electrical cavity.

9. The vehicle-mounted microwave oven system according to claim 1, characterized in that: A first fan (71) is arranged on the rear side of the magnetron assembly (81), and the first fan (71) dissipates heat from the magnetron assembly (81).

10. The vehicle-mounted microwave oven system according to claim 1, characterized in that: A connecting portion (2011) is arranged inside the vehicle cabinet (200), an upper bracket is arranged on the microwave oven (100), the top of the microwave oven (100) is connected to the vehicle cabinet (200) through the upper bracket and the connecting portion (2011), a bottom bracket (43) is arranged at the bottom of the microwave oven (100), the bottom bracket (43) is connected to the bottom of the vehicle cabinet (200), the upper bracket is close to the front side of the microwave oven (100), the upper bracket comprises a first bracket (41) and a second bracket (42), the first bracket (41) and the second bracket (42) are respectively located at positions close to both sides of the top of the microwave oven (100), and the first bracket (41) and the second bracket (42) are arranged in a mirror image.

Images