Drawer microwave oven

Abstract

The present invention relates to a drawer-type microwave oven, comprising a box body, a door body, a front plate, a first slide rail, a second slide rail, a driving motor and a drainage component. The air inlet end of the drainage component is connected to the air outlet mesh, and the air outlet end of the drainage component is arranged at the bottom of the first spacing area. When the above-mentioned drawer-type microwave oven is working, the high-temperature water vapor inside the cooking cavity is discharged into the drainage component through the air outlet mesh, and is drained and discharged to the bottom of the first spacing area by the drainage component, and then flows along the bottom of the cooking cavity, and is discharged to the outside of the box body through the front air outlet, thereby preventing the high-temperature water vapor from contacting and damaging the first slide rail, and the high-temperature water vapor will not contact the second slide rail and the driving motor, that is, the degree of erosion of the high-temperature water vapor on the slide rail and the driving motor can be greatly reduced, so that the slide rail and the driving motor of the drawer-type microwave oven are not easily damaged, and long-term normal operation can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of microwave ovens, in particular to a drawer type microwave oven. Background Art

[0002] The connection structure between the door and the cabinet of the microwave oven is hinged or slide-connected. The hinged door is a rotating door, and the slide-connected door is a drawer-type door. The whole machine is usually called a drawer-type microwave oven. Among them, the drawer-type microwave oven uses a slide motor to drive the slide to move forward and backward, thereby realizing automatic opening or closing of the door. During the heating process of the drawer-type microwave oven, especially when the microwave oven with electric heating tube is heated, the food will generate high-temperature water vapor after being heated. The high-temperature water vapor is generally discharged into the space between the side wall of the cavity and the side wall of the cabinet shell through the air outlet mesh provided on the side wall of the cooking cavity, and then discharged to the outside of the cabinet. In addition, the drawer-type microwave oven includes slides located on both sides of the cooking cavity and a drive motor for driving the slides. Since the control system needs to precisely control the drive motor and drive the slide to move accurately, the slide and the drive motor are both arranged in the space between the side wall of the cooking cavity and the side wall of the cabinet shell. However, after the drawer-type microwave oven has been working for a long time, the slide and the drive motor are easily damaged and cannot work normally. Summary of the invention

[0003] Based on this, it is necessary to overcome the defects of the prior art and provide a drawer-type microwave oven, which can make the slide rail and the drive motor of the drawer-type microwave oven less prone to damage and achieve long-term normal operation.

[0004] The technical scheme is as follows: a drawer-type microwave oven comprises: a box body and a door body, the box body comprises an outer shell and a cooking cavity arranged in the outer shell, the outer shell and the cooking cavity are both provided with an opening corresponding to the door body, the door body can be opened and covered on the opening, the outer shell comprises a first side cover plate and a second side cover plate arranged opposite to each other, an air outlet mesh hole is arranged on the cavity wall of the cooking cavity arranged opposite to the first side cover plate; a front plate, the front plate is arranged around the circumference of the opening of the cooking cavity, the bottom of the front plate is provided with a front side air outlet hole penetrating the front plate, a first spacing area is formed between the first side cover plate and the cavity wall of the cooking cavity, The front air outlet is connected to the first spacing area, and when the door is closed, the door body fits with the front plate to seal the opening; a first slide rail, a second slide rail and a drive motor, the first slide rail is arranged between the cooking cavity and the first side cover plate, the second slide rail is arranged between the cooking cavity and the second side cover plate, the drive motor is arranged in the second spacing area between the second side cover plate and the cavity wall of the cooking cavity, and the drive motor is used to drive the second slide rail to move; a drainage component, the air inlet end of the drainage component is connected to the air outlet mesh, and the air outlet end of the drainage component is arranged at the bottom of the first spacing area.

[0005] When the above-mentioned drawer-type microwave oven is working, the high-temperature water vapor inside the cooking cavity is discharged into the drainage component through the air outlet mesh, and is drained by the drainage component to the bottom of the first spacing area, and then flows along the bottom of the cooking cavity, and is discharged outwardly to the outside of the box through the front air outlet, thereby preventing the high-temperature water vapor from contacting and damaging the first slide rail, and the high-temperature water vapor will not contact the second slide rail and the drive motor, which can greatly reduce the degree of erosion of the slide rail and the drive motor by the high-temperature water vapor, so that the slide rail and the drive motor of the drawer-type microwave oven are not easily damaged, and long-term normal operation can be achieved.

[0006] In one of the embodiments, the outer shell also includes a rear cover plate connected to the first side cover plate and the second side cover plate respectively, and a third spacing area is formed between the rear cover plate and the rear wall of the cooking cavity; the drainage assembly includes a first air guide cover, a side partition plate and a second air guide cover; the first air guide cover is arranged outside the air outlet mesh, the side partition plate is arranged at the junction of the first spacing area and the third spacing area, the first spacing area is separated from the third spacing area by the side partition plate, two air guide ports are arranged on the side partition plate, the second air guide cover is arranged outside the two air guide ports of the side partition plate, the first air guide cover is connected to the second air guide cover through one of the air guide ports, and the other air guide port forms the air outlet end of the drainage assembly.

[0007] In one embodiment, the drawer-type microwave oven further comprises a cooling fan, a variable frequency power supply and a magnetron; the cooling fan, the variable frequency power supply and the magnetron are all arranged in the third spacing area, and the air outlet of the cooling fan passes through the magnetron and the variable frequency power supply;

[0008] The housing further comprises a bottom cover plate arranged at the bottom of the cooking cavity, wherein the bottom cover plate is respectively connected to the first side cover plate, the rear cover plate, and the second side cover plate;

[0009] At least one of the bottom cover plate, the first side cover plate and the rear cover plate is provided with an air inlet mesh hole connected with the third spacing area; and the rear wall of the cooking cavity is provided with an air inlet mesh hole.

[0010] In one embodiment, the outer shell also includes a top cover plate arranged on the top of the cooking cavity, and the top cover plate is respectively connected to the first side cover plate and the rear cover plate; a fourth spacing area is formed between the top wall of the cooking cavity and the top cover plate, and the fourth spacing area is respectively connected to the first spacing area and the third spacing area.

[0011] In one of the embodiments, a top wall of the cooking cavity is provided with a transverse border on a side away from the door body, the transverse border is in contact with the top cover plate, and two ends of the transverse border are respectively spaced apart from the first side cover plate and the second side cover plate.

[0012] In one embodiment, the transverse edge includes a main body edge and an arcuate edge connected to one end of the main body edge, and the arcuate edge is used to guide wind to the first spacing area; a guide edge is also provided on the top wall of the cooking cavity, and a ventilation gap is provided between the guide edge and the other end of the main body edge, and the guide edge extends toward the middle part of the cooking cavity.

[0013] In one of the embodiments, the second air guide cover is located on a side of the side partition plate away from the front plate, and the cooling fan and the air inlet mesh are both arranged at one end of the third spacing area close to the drainage assembly.

[0014] In one of the embodiments, the cooling fan includes a first fan for dissipating heat for the variable frequency power supply and a second fan for dissipating heat for the magnetron; the air inlet mesh includes a side air inlet mesh and a bottom air inlet mesh; the first side cover plate is provided with the side air inlet mesh close to the rear cover plate and one of the corners of the bottom cover plate, and the bottom cover plate is provided with the bottom air inlet mesh close to the first side cover plate and one of the corners of the rear cover plate; the surface where the air inlet of the first fan is located is inclined relative to the bottom cover plate, the surface where the air inlet of the first fan is located faces the side air inlet mesh and the bottom air inlet mesh, the surface where the air outlet of the first fan is located faces the variable frequency power supply, the surface where the air inlet of the second fan is located faces the bottom air inlet mesh or the side air inlet mesh, and the surface where the air outlet of the second fan is located faces the magnetron.

[0015] In one of the embodiments, a rear air inlet mesh is provided at a corner portion of the rear cover plate close to the first side cover plate and the bottom cover plate.

[0016] In one embodiment, the first fan is disposed above the second fan, and an angle A is formed between a central axis of the first fan and a central axis of the second fan, and A is less than 90°.

[0017] In one of the embodiments, the second fan is a vortex fan, and air inlets are provided on the upper and lower surfaces of the vortex fan, and the lower surface of the vortex fan is connected to a third air guide cover, and the top plate of the third air guide cover is provided with a first vent which is connected to the air inlet on the lower surface of the vortex fan, and the motor of the vortex fan is arranged in the third air guide cover, and the third air guide cover is arranged in a part of the bottom air inlet mesh, and the projection of the first fan on the bottom cover plate along the vertical direction is located in another part of the bottom air inlet mesh.

[0018] In one embodiment, a ventilation gap is provided between the first fan and the second fan.

[0019] In one embodiment, the casing of the variable frequency power supply is provided with a first transverse ventilation duct, the air outlet of the first fan is connected to one of the ports of the first transverse ventilation duct, the outer wall of the other port of the first transverse ventilation duct is connected with a vertical partition and a transverse partition, the vertical partition and the transverse partition are arranged on the periphery of the magnetron, the vertical partition is provided with a second ventilation port, and the air outlet of the second fan is connected to the second ventilation port.

[0020] In one of the embodiments, the power connection connector of the magnetron is arranged adjacent to the transverse partition; the transverse partition is provided with a third vent corresponding to the power connection connector of the magnetron, and the third vent is located on one side of the transverse partition close to the vertical partition.

[0021] In one embodiment, the drawer-type microwave oven also includes a fourth air guide cover, the radiator housing of the magnetron is provided with a second transverse ventilation channel, the fourth air guide cover is covered by the air inlet mesh, and the second vent, the second transverse ventilation channel, and the air inlet of the fourth air guide cover are connected in sequence.

[0022] In one of the embodiments, a heat-conducting edge is provided at the air inlet of the fourth air guide cover, and the heat-conducting edge is in contact with the magnetron.

[0023] In one embodiment, the drawer-type microwave oven also includes a first partition, which is connected to the bottom edge of the front plate or to the side edge of the bottom cover plate close to the opening, the first partition is located below the door body and forms a front air outlet with the bottom end of the door body, and a downwardly protruding supporting foot is provided on the bottom side surface of the bottom cover plate of the outer shell, and the first partition and the supporting surface on which the supporting foot are placed form a front air inlet.

[0024] In one embodiment, the drawer-type microwave oven also includes a second partition, a fifth spacing area is formed between the cavity wall of the cooking cavity and the bottom cover plate, the second partition is arranged in the fifth spacing area, and the bottom space of the first spacing area is isolated from the bottom space of the second spacing area by the second partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of one viewing angle of a drawer-type microwave oven according to an embodiment of the present invention when the door body is opened and the top cover is opened;

[0026] Figure 2 It is a structural schematic diagram of another viewing angle of the drawer-type microwave oven according to one embodiment of the present invention when the door body is opened and the top cover is opened;

[0027] Figure 3 It is a schematic diagram of the exploded structure of a drawer-type microwave oven according to an embodiment of the present invention;

[0028] Figure 4 It is a structural schematic diagram of a drawer-type microwave oven according to an embodiment of the present invention with the first side cover plate and the rear cover plate opened from one viewing angle;

[0029] Figure 5It is a structural schematic diagram of another viewing angle of the drawer-type microwave oven according to one embodiment of the present invention with the first side cover plate and the rear cover plate opened;

[0030] Figure 6 It is a schematic diagram of the exploded structure of a drawer-type microwave oven according to an embodiment of the present invention;

[0031] Figure 7 It is a structural schematic diagram of a drawer-type microwave oven according to an embodiment of the present invention, in which a first side cover plate and a rear cover plate are opened and a flow guide assembly and a fourth air guide cover are decomposed;

[0032] Figure 8 It is a structural schematic diagram of a drawer-type microwave oven according to an embodiment of the present invention, with the door body removed and the air guide assembly and the fourth air guide cover decomposed;

[0033] Fig. 9 It is a structural schematic diagram of a drawer-type microwave oven according to an embodiment of the present invention, in which a first side cover plate and a rear cover plate are opened and a fourth air guide cover is decomposed;

[0034] Fig.10 The figure is a schematic diagram of the internal structure of the drawer-type microwave oven with the rear cover opened according to one embodiment of the present invention.

[0035] Reference numerals:

[0036] 10. Box body; 11. Shell; 111. First side cover; 1111. Side air inlet mesh; 112. Second side cover; 113. Rear cover; 1131. Rear air inlet mesh; 114. Bottom cover; 1141. Bottom air inlet mesh; 1142. Support feet; 115. Top cover; 12. Cooking cavity; 121. Air outlet mesh; 122. Air inlet mesh; 20. Door body; 30. Front plate; 31. Front air outlet; 41. First slide rail; 42. Second slide rail; 43. Drive motor; 50. Drainage assembly; 51. First air duct; 52. Side partition; 521. Air guide port; 53. Second air duct; 611. First fan; 6111. Center axis; 612. Second fan; 6121. Fan motor ; 6122, central axis; 613, ventilation gap; 62, variable frequency power supply; 621, housing; 63, magnetron; 631, power connection connector; 632, radiator housing; 64, hot air assembly; 641, heating pipe; 642, heat stirring fan; 643, hot air motor; 65, control box; 66, third air guide cover; 661, baffle; 662, mounting plate; 71, horizontal surrounding edge; 711, main body surrounding edge; 712, arc-shaped surrounding edge; 72, guide edge; 73, ventilation interval; 74, vertical partition; 741, second vent; 75, horizontal partition; 751, third vent; 76, fourth air guide cover; 761, heat conduction edge; 81, first partition; 82, second partition; 83, front air outlet. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0038] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the description of the present invention, it is to be understood that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be intermediate elements at the same time. On the contrary, when an element is said to be "directly" connected to another element, there are no intermediate elements.

[0040] Generally, when high-temperature water vapor is discharged into the space between the cavity side wall and the outer shell side wall of the box body through the air outlet holes opened on the side wall of the cooking cavity, the high-temperature water vapor will corrode the slide rails and the drive motor, causing damage to the slide rails and the drive motor. After long-term use, the drawer-type microwave oven will not be able to work normally.

[0041] In one embodiment, see Figure 1 , Figures 4 to 8 A drawer-type microwave oven includes a cabinet 10, a door 20, a front panel 30, a first slide rail 41, a second slide rail 42, a driving motor 43 and a drainage assembly 50.

[0042] The box body 10 includes an outer shell 11 and a cooking cavity 12 disposed in the outer shell 11. The outer shell 11 and the cooking cavity 12 are both provided with an opening corresponding to the door body 20, and the door body 20 can be opened to cover the opening. The outer shell 11 includes a first side cover plate 111 and a second side cover plate 112 disposed opposite to each other. An air outlet mesh hole 121 is provided on the cavity wall of the cooking cavity 12 disposed opposite to the first side cover plate 111.

[0043] The front plate 30 is arranged around the circumference of the opening of the cooking cavity 12, and a front air outlet 31 penetrating the front plate 30 is arranged at the bottom of the front plate 30. A first spacing area is formed between the first side cover plate 111 and the cavity wall of the cooking cavity 12, and the front air outlet 31 is connected to the first spacing area. When the door is closed, the door body 20 and the front plate 30 are in contact with each other to seal the opening.

[0044] The first slide rail 41 is arranged between the cooking cavity 12 and the first side cover plate 111, the second slide rail 42 is arranged between the cooking cavity 12 and the second side cover plate 112, the drive motor 43 is arranged in the second spacing area between the second side cover plate 112 and the cavity wall of the cooking cavity 12, and the drive motor 43 is used to drive the second slide rail 42 to move.

[0045] The air inlet end of the drainage component 50 is connected to the air outlet mesh 121, and the air outlet end of the drainage component 50 is arranged at the bottom of the first spacing area.

[0046] When the above-mentioned drawer-type microwave oven is working, the high-temperature water vapor inside the cooking cavity 12 is discharged into the drainage component 50 through the air outlet mesh 121, and is drained by the drainage component 50 to the bottom of the first spacing area, and then flows along the bottom of the cooking cavity 12, and is discharged outwardly to the outside of the box body 10 through the front air outlet 31, thereby preventing the high-temperature water vapor from contacting and damaging the first slide rail 41, and the high-temperature water vapor will not contact the second slide rail 42 and the drive motor 43, that is, the degree of erosion of the slide rail and the drive motor 43 by the high-temperature water vapor can be greatly reduced, so that the slide rail and the drive motor 43 of the drawer-type microwave oven are not easily damaged, and long-term normal operation can be achieved.

[0047] For further information, see Figures 1 to 4The housing 11 further comprises a rear cover plate 113 connected to the first side cover plate 111 and the second side cover plate 112 respectively. A third spacing area is formed between the rear cover plate 113 and the rear wall of the cooking cavity 12. The air guide assembly 50 comprises a first air guide cover 51, a side partition plate 52 and a second air guide cover 53. The first air guide cover 51 is arranged outside the air outlet mesh 121, the side partition plate 52 is arranged at the junction of the first spacing area and the third spacing area, the first spacing area is separated from the third spacing area by the side partition plate 52, two air guide ports 521 are arranged on the side partition plate 52, the second air guide cover 53 is arranged outside the two air guide ports 521 of the side partition plate 52, the first air guide cover 51 is connected to the second air guide cover 53 through one of the air guide ports 521, and the other air guide port 521 forms the air outlet end of the air guide assembly 50. In this way, on the one hand, the high-temperature water vapor discharged from the air outlet mesh 121 is drained to the bottom of the first compartment area through the drainage component 50, and on the other hand, since the first compartment area is isolated from the third compartment area by the side partition 52, the side partition 52 can prevent the high-temperature water vapor from entering the third compartment area and affecting the normal operation of electronic components (such as the variable frequency power supply 62 and the magnetron 63). In addition, in the process of high-temperature water vapor passing through the drainage component 50, since the side partition 52 is set at the junction of the first compartment area and the third compartment area, the external cold air entering the third compartment area contacts the drainage component 50, which has a rapid air cooling effect on the high-temperature water vapor of the drainage component 50, thereby reducing the temperature of the high-temperature water vapor and reducing the degree of erosion of the first slide rail 41 by the high-temperature water vapor discharged from the air outlet end of the drainage component 50.

[0048] It can be understood that the first partition area is isolated from the third partition area by the side partition 52, which means that the opposite side edges of the side partition 52 are respectively in contact with the cavity wall of the cooking cavity 12 and the first side cover plate 111, the bottom edge of the side partition 52 is in contact with the bottom cover plate 114, and the top edge of the side partition 52 extends vertically upward to the top cover plate 115.

[0049] For further information, see Figure 4 , Figure 7 , Fig. 9 and Fig.10The drawer-type microwave oven further comprises a cooling fan, a variable frequency power supply 62 and a magnetron 63. The cooling fan, the variable frequency power supply 62 and the magnetron 63 are all arranged in the third compartment area, and the air discharged by the cooling fan passes through the magnetron 63 and the variable frequency power supply 62. The housing 11 further comprises a bottom cover plate 114 arranged at the bottom of the cooking cavity 12, and the bottom cover plate 114 is respectively connected to the first side cover plate 111, the rear cover plate 113 and the second side cover plate 112. At least one of the bottom cover plate 114, the first side cover plate 111 and the rear cover plate 113 is provided with an air inlet mesh hole connected to the third compartment area. The rear wall of the cooking cavity 12 is provided with an air inlet mesh hole 122. In this way, the external cold air enters the third compartment area through the air inlet mesh hole under the action of the cooling fan, and the variable frequency power supply 62 and the magnetron 63 are air-cooled. Part of the wind enters the interior of the cooking cavity 12 through the air inlet mesh 122 and is discharged outwardly through the air outlet mesh 121; the other part of the wind flows toward the second spacing area, the fourth spacing area between the top wall of the cooking cavity 12 and the top cover plate 115, and is finally discharged outwardly through the first spacing area and the front air outlet 31 in sequence.

[0050] For further information, see Figure 4 , Figure 7 , Fig. 9 and Fig.10 , the housing 11 further includes a top cover plate 115 disposed on the top of the cooking cavity 12. The top cover plate 115 is connected to the first side cover plate 111 and the rear cover plate 113 respectively. A fourth spacing area is formed between the top wall of the cooking cavity 12 and the top cover plate 115, and the fourth spacing area is connected to the first spacing area and the third spacing area respectively. In this way, the wind in the third spacing area flows to the fourth spacing area, flows toward the first spacing area through the fourth spacing area and flows to the bottom of the first spacing area, and finally is discharged outward through the first spacing area and the front air outlet 31. In the process of the wind in the fourth spacing area flowing to the bottom of the first spacing area, the water vapor discharged outward from the air outlet end of the drainage component 50 can be suppressed, so that the water vapor will not flow upward to contact the first slide rail 41, thereby further reducing the degree of erosion of the first slide rail 41.

[0051] Specifically, see Figure 4 , Figure 7 , Fig. 9 and Fig.10, a hot air assembly 64 is provided on the top wall of the cooking cavity 12. The hot air assembly 64 includes a heating pipe 641, a hot stirring fan 642 with metal fan blades, and a hot air motor 643 driving the hot stirring fan 642. When the wind from the third interval area flows to the fourth interval area, the hot air motor 643 can be cooled to prevent heat from accumulating on the top of the box body 10 and affecting the control box 65 located on the side of the hot air assembly 64. In addition, a control box 65 is provided on the top cover plate 115. The control box 65 is, for example, arranged on a side of the top cover plate 115 close to the door body 20 to facilitate the operation of the control box 65. Of course, the control box 65 can also be arranged at other positions on the top cover plate 115.

[0052] For further information, see Figure 4 , Figure 7 , Fig. 9 and Fig.10 A transverse edge 71 is provided on the top wall of the cooking cavity 12 at a side away from the door body 20. The transverse edge 71 is in contact with the top cover plate 115, and the two ends of the transverse edge 71 are spaced from the first side cover plate 111 and the second side cover plate 112. In this way, the transverse edge 71 isolates the hot air assembly 64 from the variable frequency power supply 62 and the magnetron 63, and prevents the heat generated by the hot air assembly 64 from jumping to the variable frequency power supply 62 and the magnetron 63 behind the transverse edge 71, thereby affecting the normal operation of the variable frequency power supply 62 and the magnetron 63.

[0053] For further information, see Figure 4 , Figure 7 , Fig. 9 and Fig.10 The transverse surrounding edge 71 includes a main body surrounding edge 711 and an arc-shaped surrounding edge 712 connected to one end of the main body surrounding edge 711. The arc-shaped surrounding edge 712 is used to guide the wind to the first interval area. A guide edge 72 is also provided on the top wall of the cooking cavity 12. A ventilation interval 73 is provided between the guide edge 72 and the other end of the main body surrounding edge 711. The guide edge 72 extends toward the middle part of the cooking cavity 12. In this way, part of the wind discharged by the heat dissipation fan flows along the transverse surrounding edge 71 and enters the first interval area, and then is discharged outward from the front side air outlet 31 of the front plate 30; another part of the wind discharged by the heat dissipation fan enters the top of the cooking cavity 12 from the ventilation interval 73, then flows through the hot air assembly 64 and enters the first interval area, and is also discharged outward from the front side air outlet 31 of the front plate 30.

[0054] For further information, see Figures 4 to 7 , Fig. 9 and Fig.10, the second air guide cover 53 is located on the side of the side partition plate 52 away from the front plate 30, and the heat dissipation fan and the air inlet mesh are both arranged at one end of the third interval area close to the air guide assembly 50. In this way, the external cold air entering from the end of the third interval area close to the air guide assembly 50 will contact the air guide assembly 50, thereby achieving a good cooling effect on the high-temperature water vapor in the air guide assembly 50, which is conducive to the lower temperature of the gas discharged from the front air outlet 31, so that the operator will not feel uncomfortable due to the high temperature of the discharged gas.

[0055] For further information, see Figures 4 to 7 , Fig. 9 and Fig.10 The cooling fan includes a first fan 611 for cooling the variable frequency power supply 62 and a second fan 612 for cooling the magnetron 63. The air inlet mesh includes a side air inlet mesh 1111 and a bottom air inlet mesh 1141. The first side cover plate 111 is provided with the side air inlet mesh 1111 at one of the corners close to the rear cover plate 113 and the bottom cover plate 114, and the bottom cover plate 114 is provided with the bottom air inlet mesh 1141 at one of the corners close to the first side cover plate 111 and the rear cover plate 113. The surface where the air inlet of the first fan 611 is located is inclined relative to the bottom cover plate 114, the surface where the air inlet of the first fan 611 is located faces the side air inlet mesh 1111 and the bottom air inlet mesh 1141, the surface where the air outlet of the first fan 611 is located faces the variable frequency power supply 62, the surface where the air inlet of the second fan 612 is located faces the bottom air inlet mesh 1141 or the side air inlet mesh 1111, and the surface where the air outlet of the second fan 612 is located faces the magnetron 63. In this way, on the one hand, the first fan 611 draws air from the outside of the box 10 through the side air inlet mesh 1111 and the bottom air inlet mesh 1141, and blows it onto the variable frequency power supply 62 to dissipate heat for the variable frequency power supply 62. The incoming air volume is large, which has a good heat dissipation effect on the variable frequency power supply 62. The second fan 612 draws air from the outside of the box 10 through the bottom air inlet mesh 1141 or the side air inlet mesh 1111, and blows it onto the magnetron 63 to dissipate heat, thereby achieving a good heat dissipation effect for the magnetron 63. On the other hand, since the first fan 611 is tilted relative to the bottom cover plate 114 with the surface where its air inlet is located, the horizontal space occupied by the first fan 611 can be reduced to a certain extent relative to the horizontal setting, thereby increasing the volume of the cooking cavity 12 and improving the heat dissipation effect.

[0056] For further information, see Figures 3 to 7 , Fig. 9 and Fig.10The rear cover plate 113 is provided with a rear air inlet mesh 1131 at one of the corners close to the first side cover plate 111 and the bottom cover plate 114. Thus, when the first fan 611 and the second fan 612 are working, the outside air of the box body 10 can also enter the box body 10 through the rear air inlet mesh 1131, so as to increase the air volume and ensure a better heat dissipation effect.

[0057] For further information, see Figures 3 to 7 , Fig. 9 and Fig.10 , the first fan 611 is arranged above the second fan 612, and the angle A between the central axis 6111 of the first fan 611 and the central axis 6122 of the second fan 612 is less than 90°. It should be explained that the central axis 6111 of the first fan 611 refers to the axis line of the surface perpendicular to the air inlet of the first fan 611, and the central axis 6122 of the second fan 612 refers to the axis line of the surface perpendicular to the air inlet of the second fan 612. Specifically, the angle A between the central axis 6111 of the first fan 611 and the central axis 6122 of the second fan 612 is 30° to 40°, and preferably, A is 36°.

[0058] For further information, see Figures 3 to 7 , Fig. 9 and Fig.10 The second fan 612 is a vortex fan, and the upper surface and the lower surface of the vortex fan are both provided with air inlets. The lower surface of the vortex fan is connected to a third air guide cover 66, and the top plate of the third air guide cover 66 is provided with a first vent connected to the air inlet on the lower surface of the vortex fan. The motor of the vortex fan is arranged in the third air guide cover 66, and the third air guide cover 66 is arranged to cover a part of the bottom air inlet mesh 1141. The projection of the first fan 611 on the bottom cover plate 114 along the vertical direction is located in another part of the bottom air inlet mesh 1141. In this way, the third air guide cover 66 can divide the air entering into the outer casing 11 from the bottom air inlet mesh 1141 into two independent and isolated winds, one of which is sucked in by the air inlet of the first fan 611, and the other is sucked in by the air inlet of the second fan 612. The two wind flows will not be confused and partially offset, thereby improving the utilization rate of the cold air and ensuring the heat dissipation effect. In addition, the fan motor 6121 of the vortex fan is arranged in the third air guide cover 66, and the wind flow entering the third air guide cover 66 has a heat dissipation effect on the fan motor 6121, thereby improving the service life of the fan motor 6121.

[0059] Specifically, see Figures 3 to 7 , Fig. 9 and Fig.10The third air guide cover 66 includes two baffles 661 arranged at intervals and a mounting plate 662 connecting the two baffles 661. The first vent is formed on the mounting plate 662. The baffles 661 are respectively connected to the rear wall of the cooking cavity 12 and the rear cover 113. The fan motor 6121 of the second fan 612 is arranged between the two baffles 661. The area between the two baffles 661 is opposite to the rear air inlet mesh 1131 of the rear cover 113, and the outside air can enter between the two baffles 661 through the rear air inlet mesh 1131. In addition, the mounting plate 662 is opposite to the bottom air inlet mesh 1141 of the bottom cover 114, and the outside air can also enter into the third air guide cover 66 through the bottom air inlet mesh 1141.

[0060] For further information, see Figures 3 to 7 , Fig. 9 and Fig.10 , a ventilation gap 613 is provided between the first fan 611 and the second fan 612. In this way, a part of the wind enters the third wind guide cover 66 through the bottom air inlet mesh 1141 and enters the air inlet on the lower surface of the second fan 612, and another part of the wind enters the housing 11 through the bottom air inlet mesh 1141 and the side air inlet mesh 1111, and enters the air inlet on the upper surface of the second fan 612 from the ventilation gap 613 between the first fan 611 and the second fan 612, thereby increasing the cold air intake of the second fan 612 and achieving a better heat dissipation effect.

[0061] For further information, see Figures 3 to 7 , Fig. 9 and Fig.10 The housing 621 of the variable frequency power supply 62 is provided with a first transverse ventilation channel, the air outlet of the first fan 611 is connected to one of the ports of the first transverse ventilation channel, and the outer wall of the other port of the first transverse ventilation channel is connected with a vertical partition 74 and a transverse partition 75. The vertical partition 74 and the transverse partition 75 are arranged on the periphery of the magnetron 63, and the vertical partition 74 is provided with a second ventilation port 741, and the air outlet of the second fan 612 is connected to the second ventilation port 741. In this way, on the one hand, the cold air sent out from the air outlet of the first fan 611 enters the first transverse ventilation channel to achieve better heat dissipation of the variable frequency power supply 62; on the other hand, under the action of the vertical partition 74 and the transverse partition 75, the two wind flows will not be chaotic and partially offset, thereby improving the utilization rate of the cold air and ensuring the heat dissipation effect.

[0062] Furthermore, the transverse partition 75 is also connected to the rear wall of the cooking cavity 12 and the rear cover 113. Similarly, the vertical partition 74 is also connected to the rear wall of the cooking cavity 12 and the rear cover 113.

[0063] Furthermore, the power connection connector 631 of the magnetron 63 is arranged adjacent to the transverse partition 75. The transverse partition 75 is provided with a third vent 751 corresponding to the power connection connector of the magnetron 63. The third vent 751 is located on the transverse partition 75 on one side close to the vertical partition 74. In this way, after the cold air of the first fan 611 flows out through the first transverse ventilation channel, a part of the air flows into the space area where the magnetron 63 is located through the third vent 751, and when it flows into the area where the magnetron 63 is located from top to bottom, it fully exchanges heat with the magnetron 63, which can better reduce the temperature of the magnetron 63. In addition, it can avoid the generation of whirlwind in the area where the magnetron 63 is located.

[0064] Furthermore, the drawer-type microwave oven further comprises a fourth air guide cover 76, the heat sink housing 632 of the magnetron 63 is provided with a second transverse ventilation channel, the fourth air guide cover 76 is provided on the air inlet mesh 122, the second vent 741, the second transverse ventilation channel, and the air inlet of the fourth air guide cover 76 are sequentially connected. In this way, the cold air of the second fan 612 enters the fourth air guide cover 76 through the second vent 741 and the second transverse ventilation channel, and then enters the interior of the cooking cavity 12 through the air inlet mesh 122.

[0065] For further information, see Figures 3 to 7 , Fig. 9 and Fig.10 The fourth air guide cover 76 is provided with a heat conducting edge 761 at the air inlet, and the heat conducting edge 761 is in contact with the magnetron 63. Specifically, the heat conducting edge 761 is in contact with the heat sink housing 632 of the magnetron 63, and the heat on the heat sink housing 632 of the magnetron 63 is transferred to the fourth air guide cover 76 by the heat conduction principle, thereby improving the heat dissipation effect of the magnetron 63.

[0066] In a specific embodiment, see Figures 3 to 7 , Fig. 9 and Fig.10The power connection connector 631 of the magnetron 63 is arranged adjacent to the transverse partition 75, and the transverse partition 75 is provided with a third vent 751 corresponding to the power connection connector of the magnetron 63, and the third vent 751 is located on the transverse partition 75 on a side close to the vertical partition 74. The embedded microwave oven further includes a fourth air guide cover 76, the heat sink housing 632 of the magnetron 63 is provided with a second transverse ventilation channel, the rear wall of the cooking cavity 12 is provided with an air inlet mesh 122, the fourth air guide cover 76 is provided on the air inlet mesh 122, and the second vent 741, the second transverse ventilation channel, and the air inlet of the fourth air guide cover 76 are sequentially connected. In this way, when only the wind blown by the second fan 612 flows in the fourth wind guide 76, it is easy to generate vortex wind in the fourth wind guide 76. After the third vent 751 is provided on the transverse partition 75, the wind blown by the first fan 611 can enter the area where the magnetron 63 is located from top to bottom through the third vent 751, and enter the fourth wind guide 76, which is beneficial to avoid the generation of vortex wind and has a better heat dissipation effect on the magnetron 63.

[0067] The drawer-type microwave oven further comprises a container connected to the door body 20 for placing cooking objects.

[0068] For further information, see Figure 4 The drawer-type microwave oven further comprises a first partition 81. The first partition 81 is connected to the bottom edge of the front plate 30 or to the side edge of the bottom cover plate 114 close to the opening, the first partition 81 is located below the door body 20 and forms a front air outlet 83 with the bottom end of the door body 20, a support leg 1142 protruding downward is provided on the bottom side surface of the bottom cover plate 114, and a front air inlet is formed on the supporting surface (e.g., the bottom wall of the cabinet) on which the first partition 81 and the support leg 1142 are placed. In this way, the first partition 81 can prevent the cold air entering from the front air inlet and the hot air discharged from the front air outlet 83 from mixing with each other, and prevent the hot air discharged from the front air outlet 83 from directly entering the front air inlet and then entering the box body 10, thereby playing a good buffering role, that is, after the hot air is discharged from the front air outlet 83, it first dissipates heat with the outside air, and then enters the box body 10 after passing through the front air inlet; in addition, the hot air discharged from the front air outlet 83 can be reflected to the upper front side of the box body 10 through the first partition 81, so that it is not easily sucked into the front air inlet.

[0069] For further information, see Figure 3 and Figure 4The drawer-type microwave oven further includes a second partition 82. A fifth spacing area is formed between the cavity wall of the cooking cavity 12 and the bottom cover plate 114, and the second partition 82 is disposed in the fifth spacing area. The bottom space of the first spacing area is isolated from the bottom space of the second spacing area by the second partition 82. In this way, the second partition 82 can divide the fifth spacing area into two spaces on the left and right, and can prevent the high-temperature water vapor discharged from the air outlet mesh 121 from entering the second spacing area, thereby preventing the high-temperature water vapor from corroding the second slide rail 42 and the drive motor 43.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A drawer-type microwave oven, characterized in that: include: A box body and a door body, the box body comprises an outer shell and a cooking cavity arranged in the outer shell, the outer shell and the cooking cavity are both provided with an opening corresponding to the door body, the door body can be opened to cover the opening, the outer shell comprises a first side cover plate and a second side cover plate arranged opposite to each other, and a cavity wall of the cooking cavity arranged opposite to the first side cover plate is provided with an air outlet mesh hole; A front plate, the front plate is arranged around the circumference of the mouth of the cooking cavity, the bottom of the front plate is provided with a front air outlet penetrating the front plate, a first spacing area is formed between the first side cover plate and the cavity wall of the cooking cavity, the front air outlet is connected to the first spacing area, and when the door is closed, the door body and the front plate are in contact with each other to seal the mouth; A first slide rail, a second slide rail and a drive motor, wherein the first slide rail is arranged between the cooking cavity and the first side cover plate, the second slide rail is arranged between the cooking cavity and the second side cover plate, the drive motor is arranged in a second spacing area between the second side cover plate and the cavity wall of the cooking cavity, and the drive motor is used to drive the second slide rail to move; A drainage component, wherein the air inlet end of the drainage component is connected to the air outlet mesh, and the air outlet end of the drainage component is arranged at the bottom of the first spacing area; In which, the outer shell also includes a rear cover plate connected to the first side cover plate and the second side cover plate respectively, and a third spacing area is formed between the rear cover plate and the rear wall of the cooking cavity; the drainage assembly includes a first air guide cover, a side partition plate and a second air guide cover; the first air guide cover is arranged outside the air outlet mesh, the side partition plate is arranged at the junction of the first spacing area and the third spacing area, the first spacing area is separated from the third spacing area by the side partition plate, two air guide ports are arranged on the side partition plate, the second air guide cover is arranged outside the two air guide ports of the side partition plate, the first air guide cover is connected to the second air guide cover through one of the air guide ports, and the other air guide port forms the air outlet end of the drainage assembly.

2. The drawer-type microwave oven according to claim 1, characterized in that: It also includes a cooling fan, a variable frequency power supply and a magnetron; the cooling fan, the variable frequency power supply and the magnetron are all arranged in the third spacing area, and the air outlet of the cooling fan passes through the magnetron and the variable frequency power supply; The housing further comprises a bottom cover plate arranged at the bottom of the cooking cavity, wherein the bottom cover plate is respectively connected to the first side cover plate, the rear cover plate, and the second side cover plate; At least one of the bottom cover plate, the first side cover plate and the rear cover plate is provided with an air inlet mesh hole connected with the third spacing area; and the rear wall of the cooking cavity is provided with an air inlet mesh hole.

3. The drawer-type microwave oven according to claim 2, characterized in that: The outer shell also includes a top cover plate arranged on the top of the cooking cavity, and the top cover plate is respectively connected to the first side cover plate and the rear cover plate; a fourth spacing area is formed between the top wall of the cooking cavity and the top cover plate, and the fourth spacing area is respectively connected to the first spacing area and the third spacing area.

4. The drawer-type microwave oven according to claim 3, characterized in that: A transverse edge is provided on a side of the top wall of the cooking cavity away from the door body, the transverse edge is in contact with the top cover plate, and two ends of the transverse edge are spaced apart from the first side cover plate and the second side cover plate respectively.

5. The drawer-type microwave oven according to claim 4, characterized in that: The transverse edge includes a main body edge and an arcuate edge connected to one end of the main body edge, and the arcuate edge is used to guide wind to the first spacing area; a guide edge is also provided on the top wall of the cooking cavity, and a ventilation gap is provided between the guide edge and the other end of the main body edge, and the guide edge extends toward the middle part of the cooking cavity.

6. The drawer-type microwave oven according to claim 2, characterized in that: The second air guide cover is located on a side of the side partition plate away from the front plate, and the cooling fan and the air inlet mesh are both arranged at an end of the third spacing area close to the drainage component.

7. The drawer-type microwave oven according to claim 6, characterized in that: The cooling fan comprises a first fan for cooling the variable frequency power supply and a second fan for cooling the magnetron; the air inlet mesh comprises a side air inlet mesh and a bottom air inlet mesh; the first side cover plate is provided with the side air inlet mesh near one of the corners of the rear cover plate and the bottom cover plate, and the bottom cover plate is provided with the bottom air inlet mesh near one of the corners of the first side cover plate and the rear cover plate; the surface where the air inlet of the first fan is located is inclined relative to the bottom cover plate, the surface where the air inlet of the first fan is located faces the side air inlet mesh and the bottom air inlet mesh, the surface where the air outlet of the first fan is located faces the variable frequency power supply, the surface where the air inlet of the second fan is located faces the bottom air inlet mesh or the side air inlet mesh, and the surface where the air outlet of the second fan is located faces the magnetron.

8. The drawer-type microwave oven according to claim 7, characterized in that: The rear cover plate is provided with a rear air inlet mesh at one of the corners close to the first side cover plate and the bottom cover plate.

9. The drawer-type microwave oven according to claim 7, characterized in that: The first fan is arranged above the second fan, and an angle A is formed between a central axis of the first fan and a central axis of the second fan, and A is smaller than 90°.

10. The drawer-type microwave oven according to claim 9, characterized in that: The second fan is a vortex fan, and air inlets are provided on the upper and lower surfaces of the vortex fan. The lower surface of the vortex fan is connected to a third air guide cover, and the top plate of the third air guide cover is provided with a first vent which is connected to the air inlet on the lower surface of the vortex fan. The motor of the vortex fan is arranged in the third air guide cover, and the third air guide cover is arranged in a part of the bottom air inlet mesh. The projection of the first fan on the bottom cover plate along the vertical direction is located in another part of the bottom air inlet mesh.

11. The drawer-type microwave oven according to claim 10, characterized in that: A ventilation gap is provided between the first fan and the second fan.

12. The drawer-type microwave oven according to claim 10, characterized in that: The casing of the variable frequency power supply is provided with a first transverse ventilation duct, the air outlet of the first fan is connected to one of the ports of the first transverse ventilation duct, the outer wall of the other port of the first transverse ventilation duct is connected with a vertical partition and a transverse partition, the vertical partition and the transverse partition are arranged on the periphery of the magnetron, the vertical partition is provided with a second ventilation port, and the air outlet of the second fan is connected to the second ventilation port.

13. The drawer-type microwave oven according to claim 12, characterized in that: The power connection connector of the magnetron is arranged adjacent to the transverse partition; a third ventilation hole corresponding to the power connection connector of the magnetron is provided on the transverse partition, and the third ventilation hole is located on one side of the transverse partition close to the vertical partition.

14. The drawer-type microwave oven according to claim 12, characterized in that: It also includes a fourth air guide cover, the heat sink shell of the magnetron is provided with a second transverse ventilation channel, the fourth air guide cover is provided on the air inlet mesh, the second vent, the second transverse ventilation channel, and the air inlet of the fourth air guide cover are connected in sequence.

15. The drawer-type microwave oven according to claim 14, characterized in that: A heat-conducting edge is provided at the air inlet of the fourth air guide cover, and the heat-conducting edge is in contact with the magnetron.

16. The drawer-type microwave oven according to claim 1, characterized in that: It also includes a first partition, which is connected to the bottom edge of the front plate or to the side edge of the bottom cover plate of the outer shell close to the opening, the first partition is located below the door body and forms a front air outlet with the bottom end of the door body, and a downwardly protruding supporting foot is provided on the bottom side surface of the bottom cover plate, and the first partition and the supporting surface on which the supporting foot are placed form a front air inlet.

17. The drawer-type microwave oven according to any one of claims 1 to 16, characterized in that: It also includes a second partition, a fifth spacing area is formed between the cavity wall of the cooking cavity and the bottom cover plate, the second partition is arranged in the fifth spacing area, and the bottom space of the first spacing area is isolated from the bottom space of the second spacing area by the second partition.

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